安徽省宿州市十三所省重点中学2019-2020学年高一下学期期末联考英语试题

安徽省宿州市十三所省重点中学2019-2020学年高一下学期期末联考英语试题
1 . Project A:Introductory(入门的)Hip Hop for ages 7-12

Hey kids…go back to school with some cool dance moves!

This 4-week hip hop workshop introduces the popular hip hop style of dance in a fun and kid-friendly way. Learn basic hip hop dance moves featured in today’s popular music videos, including footwork, freezes, and more.

Open to ages 7-12 with no or little hip hop experience.

Instructor:Jared Hale
Time:Wednesdays,Nov 27-Dec 18   5:00pm-5:45pm(4 weeks)
Cost:$75-4 weeks
Project B:Beginning Musical Theatre Dance for Ages 13 and up

Are you a Musical Theatre student in middle school or high school?Or maybe you just want to give musical theatre a try?This workshop at the beginning level is for YOU!

This 4-week workshop will be taught by the best at the beginning level to help the musical theatre lover learn some of the common dance moves of musical theatre!

Instructor:Adam Roberts
Time:Sundays,Dec 1-Dec 22  1:15pm-2:15pm(4 weeks)
Cost:$80 per 4-week workshop
Project C:Intermediate(中级的)Musical Theatre Dance for Ages 13 and up

Anyone with dance experience at the intermediate level that wants to improve their Musical Theatre Dance skills will not want to miss this workshop!

You will spend 4 weeks with an instructor who has served as an artistic director,choreographer(编舞者),and musical director.

Instructor:Taylor Williams
Time:Sundays,Nov 10-Dec 1  2:15pm-3:15pm(4 weeks)
Cost:$70 per 4-week workshop
Project D:Beginning Ballet Drop-in Class for Ages 11-18

This beginning level ballet class is offered on our drop-in schedule(插班课程)every Tuesday between Nov 26 and Dec 31 this winter.This class gives students the opportunity to try ballet and get some ballet basics needed for other dance styles.

You can start any time and come when you can, enjoying the flexibility you need during the winter!

Instructor:Adam Roberts
Time:Tuesdays,between Nov 26 and Dec 31
Cost:$25 per class.
【小题1】When can a student attend a Hip Hop dancing class?

A.Dec 18  5:00 pm. B.Nov 26  1:15 pm.
C.Dec 1  2:15pm. D.Dec 22  1:15pm.

【小题2】What do Project B and Project D have in common?

A.They share the same class time. B.They share the same instructor.
C.They teach the same dance moves. D.They share the same classroom.

【小题3】How does Project C differ from the other three projects?

A.It costs students more money.
B.It includes free extra lessons.
C.It has changeable class time for beginners.
D.It is for students with middle-level dance experience.

安徽省宿州市十三所省重点中学2019-2020学年高一下学期期末联考英语试题

2 .    Have you ever thought about running lemonade stand (货摊) to make money? Sixth-grader Jamaria Crump has. She has been very successful at it, too. It took the 11-year-old one year to build her lemonade stand to earn money for those in need.

Her business, Lemon Topia, is a hit, which her teacher said was surprising. She makes pies, cakes and cookies besides lemonade.

Jamaria built LemonTopia herself with the help of Mom. “I’m a teacher and had no time to help her at first. So she had begged for a lemonade stand for a year or two before I let her do it.” said Jasmine Hall Jamaria’s mother.

Jamaria’s school announced a baking sale in 2016 that was a perfect chance to try out Jamaria’s plan for a lemonade stand. Jamaria made cookies and cakes. After the baking sale, she kept selling at school and community events Now she has her own business at a street market.

Of course, Jamaria pays for her own costs. She has to buy the materials and also pays her mother for rides and working for the stand. Hall says Jamaria does not like the cleaning up. “I make her wash all of her own dishes. That’s a constant battle.” Hall said.

The lemonade business can have its ups and downs. “I’m very proud of her for sticking with it.” said Hall. She wondered if Jamaria would get bored and stop. But that hasn’t happened.

Doran Brown, Hall’s friend, says Jamaria is a success in Baltimore. “She is adorable (讨人喜爱的). She is running her own business to help others.” he said.

In fact, Jamaria dreams of studying in Paris to be a dessert cook. For now, she bakes and sells her goods. She is turning LemonTopla into strong starting point for a sweet future to help others.

【小题1】Why did Jamaria plan to build a lemonade stand?

A.To realize her dream. B.To support her family.
C.To help people in need. D.To show her baking skills.

【小题2】What does the underlined word “hit” in Paragraph 2 probably mean?

A.Success. B.Doubt. C.Surprise. D.Experiment.

【小题3】What does Jamaria’s mother think of her?

A.She is lazy and boring. B.She often argues with her mother
C.She can’t stand business failure. D.She is worth praising.

【小题4】What will Jamaria do in the future?

A.Focus on her study instead of selling lemonade.
B.Take part in a test about cooking in Paris.
C.Open her chain lemonade over the country.
D.Try her best to pass down her kindness.

安徽省宿州市十三所省重点中学2019-2020学年高一下学期期末联考英语试题

3 .    I don’t post recognizable pictures of my children on social media. I don’t use their names. I don’t put anything out there that will be really embarrassing for them in later life.

The reason for not posting pictures is that I feel a person’s pictures should be his or her own. It’s not good for me to push my kids out into the wilds of the Web before they’re ready, and understand what it all means.

When the time comes, they’re more than welcome to use social media. But for now, I’m happy to give them a degree of separation until they can make a choice for themselves.

This has meant extra efforts on our part when it comes to making sure that kids don’t get accidentally caught up in the Internet, because the schools where they learn, like so many others up and down the country, post their pictures to social media.

However, my husband thought I was overanxious and asked me a question about its advantages. And having thought about it for while, I’m not 100 percent sure if there are any.

But I could list the disadvantages: the time it takes to manage an account, often by a teacher, meaning extra work; the unavoidable difficulties in safeguarding.

It’s great to see the kids doing their things in schools but my worry is about the use of social media that doesn’t give anything back to the kids, and in many ways, just turns them into another way to gain clicks. I want more than that for them.

【小题1】Why is the author unwilling to post her kids’ picture online?

A.To push her kids into the wilds of the Web. B.To avoid being recognized
C.To make herself embarrassed. D.To protect her kids’ privacy.

【小题2】What’s most schools’ attitude towards social media?

A.Supportive. B.Unfavorable. C.Doubtful. D.Worried.

【小题3】Why did the author’s husband ask her a question?

A.To prove the author is knowledgeable. B.To show social media has disadvantages.
C.To advise the author to list what she thinks. D.To help the author solve her problem.

【小题4】What will happen if schools post kids’ pictures online according to the author?

A.Teachers will take on extra work. B.Parents will have lots of things to do
C.Kids’ safety will be protected effectively. D.Kids will become famous due to clicks.

安徽省宿州市十三所省重点中学2019-2020学年高一下学期期末联考英语试题

安徽省普通高中2020年学业水平考试英语试题

安徽省普通高中2020年学业水平考试英语试题

1 .    A one-armed 13-year-old basketball player in a video moves China. He is Zhang Jiacheng, from Guangdong Province. In the video, facing a taller, stronger, and older opponent (对手),he isn’t afraid at all.

Attracted by his good skills in the video, many people even fail to know that Zhang Jiacheng has only one arm. Although the young boy lost one of his arms in an accident, he became crazy about playing basketball at 12. “Work hard or just give up,” he always says. Thus, he spent all of his free time on it without considering his body condition.

People’s attention has encouraged him to work harder towards his goal—to become a top basketball player “I just keep practising every day to improve myself whether at home or in the playground, he says, “My biggest challenge is to control the ball much better.” After only a year of hard practising, Zhang Jiacheng has improved his skills greatly. Through patience, confidence and determination, the young basketball player is getting closer to his life goal.

His effort and courage finally caught the attention of Yi Jianlian, a Chinese professional (MR 业的)basketball player, who shared the video on his own Weibo.

【小题1】Why do people fail to know the boy has only one arm?

A.Because his good skills attract people.
B.Because his life goal encourages people.
C.Because he jumps to an amazing height.
D.Because he hides the other arm carefully.

【小题2】What is the biggest challenge for the boy?

A.Controlling the ball better. B.Keeping his balance.
C.Making some more friends. D.Getting closer to his family.

【小题3】What is the boy’s goal according to the text?

A.To live a comfortable life. B.To become a top basketball player.
C.To set up a basketball team. D.To build a large gym for his school.

【小题4】Which of the following can best describe the young boy?

A.Humorous. B.Confident. C.Careless. D.Noisy.

【小题5】What will probably be talked about in the following paragraph?

A.Yi Jianlian’s cute pets. B.Yi Jianlian’s courage.
C.The video’s influence. D.The video’s quality.

安徽省普通高中2020年学业水平考试英语试题

2 .    Wearing sports clothes, many Chinese people will go outdoors happily with their families or friends on March 12. They are just planting trees on this special day―China’s Arbor Day (中国植树节).

When it comes to China’s Arbor Day, we can’t help thinking of Mr. Ling Daoyang. He was born in 1888. When he worked as an English teacher in Beijing, he got a chance to study forestry (林业)at Yale University. After graduating in 1914, he returned to China and became a famous expert in forestry science. In 1915, he advised that the Qingming Festival should also be China’s Arbor Day. His suggestion was welcomed by most people. In 1929, National Arbor Day was moved to March 12, the day Mi. Sun Yat-sen passed away, who did much to support forestry.

In 1979, March 12 was officially announced as China’s Arbor Day. Since then, thousands of trees have been planted all over China, making our country much more beautiful.

China’s Arbor Day is educational for all of us. It reminds us that we should protect our earth and thank our old generations, who planted green, hope and joy for us.

【小题1】According to the text, people often go outdoors on March 12 to_______________.

A.do sports B.study English C.find jobs D.plant trees

【小题2】What was Ling Daoyang in Beijing then?

A.A farmer. B.A student. C.A teacher. D.A worker.

【小题3】Why was National Arbor Day moved to March 12, in 1929?

A.To show interest in the season. B.To show respect to Sun Yat-sen.
C.To make use of people’s free time. D.To make progress in agriculture.

【小题4】When did March 12 become China’s Arbor Day officially?

A.In 1888. B.In 1914. C.In 1915. D.In 1979.

【小题5】What is the main idea of the last paragraph?

A.The studies of China’s Arbor Day. B.The activities of China’s Arbor Day.
C.The demands of China’s Arbor Day. D.The meanings of China’s Arbor Day.

安徽省普通高中2020年学业水平考试英语试题

3 .    We all need Vitamin (维生素)D because it helps to build and keep strong bones. A lack of it can lead to some bone diseases. As studies show, sunlight is great for making Vitamin D. When you’re outdoors, your body will create the Vitamin D you need from direct sunlight on your skin.

In order to get enough Vitamin D, you should get 10-30 minutes of sunlight at a time, several times a week. However, people with darker skin may need a little more time than this. Besides, your exposure (暴露)time in the sunlight should rely on how sensitive your skin is to sunlight. Too much sunlight can be dangerous, for it may cause some bad results, including sunburn, eye damage, and skin problems. If you have to stay in the sunlight for a long time, you should be careful not to let sunlight hurt your skin, so take care to protect your skin with sunscreen before it starts to turn red.

In a word, your ability to make Vitamin D from sunlight depends on the time of day, your skin color, where you live and so on. Keep those in mind when you go out for Vitamin D from sunlight.

【小题1】Why do people need Vitamin D according to Paragraph 1?

A.To keep their hair healthy. B.To make their teeth white.
C.To make their faces pretty. D.To keep their bones strong.

【小题2】We can infer that our body creates Vitamin D by______________.

A.doing some exercise B.losing much weight
C.staying in the sunlight D.walking in the moonlight

【小题3】What is the bad result if you stay in the sunlight too long?

A.Lung diseases. B.Skin problems.
C.Heart diseases. D.Breath problems.

【小题4】What does the underlined word “sunscreen” in Paragraph 2 probably mean?

A.防晒霜 B.防水服 C.防尘罩 D.防腐剂

【小题5】Where is the text probably taken from?

A.A story book. B.A telephone book.
C.A health magazine. D.A music magazine.

安徽省普通高中2020年学业水平考试英语试题

安徽省六安中学2019-2020学年高一下学期期末考试英语试题

安徽省六安中学2019-2020学年高一下学期期末考试英语试题

1 .    Volunteering abroad is a great way to help others,improve your skills and become a more confident,independent person. If you are interested in volunteering abroad,here are some places to go.

Australia

If you seek a life on the beach,in a great climate with friendly people,Australia might be your best bet. With thousands of volunteers already signing up to leave for Australia during the holidays,it will be a very popular option.

Brazil

This vast country has some great opportunities on offer and is especially popular this year. A lot of volunteer work is available in Brazil centers on conservation and ecological projects. With the world’s largest rainforest in Brazil,of which huge part is in danger,there are lots of different jobs you can do.

Kenya

Kenya is the destination for those seeking an African experience. Generally volunteers in Kenya work in orphanages (孤儿院) or with local children living in slums. There is a great demand for volunteers in Africa because many people live in poverty,so if you truly feel like making a difference to a community,Kenya should be at the top of your list.

Costa Rica

Golden sandy beaches,clear coastlines and beautiful cities are what Costa Rica is all about. Because of its small size,you can see a lot of the country in just a short time. You can really make the most of your time as a volunteer. A lot of work is needed with wildlife and ecological work,so if you want to look after turtles on the beach,Costa Rica could be just the place for you.

【小题1】If you are interested in protecting the environment,you will probably go to       .

A.Australia B.Brazil C.Kenya D.Costa Rica

【小题2】It can be inferred from the passage that volunteers in Kenya mainly work with       .

A.animals B.plants C.the elderly D.children

【小题3】If you choose to go to Costa Rica,you are supposed to       .

A.take care of trees in the forests B.surf with children in the water
C.work with animals on the beach D.look after children who have lost their parents

安徽省六安中学2019-2020学年高一下学期期末考试英语试题

2 . Here is a true story about a famous man who worked in the White House and a criminal. They once faced the same thing: their mother gave them apples when they were young.
The criminal said: one day, my mother brought some apples and asked my brother and me: “Which do you want?” “The reddest and biggest one,” my little brother said. My mother stared at him and said to him angrily: “You should learn to give the good things to others; you shouldn’t always think of yourself.” Seeing this, I suddenly changed my idea and then said to my mother, “Mum, please give me the smaller one and give the bigger one to my little brother.” Hearing my words, my mother was very happy. She kissed me on my face and gave the reddest and biggest apple to me as a prize. From them on, I learned to tell lies, fight, steal and rob. In order to get what I wanted, I played hard. As a result, I was sent into prison.
The famous man from the white house said, One day, my mother brought some apples. She said to my brother and me: “You all want the reddest and biggest one, right? Well, let’s have a competition. Now I divided the grassland in front of the gate into two and I will give one to each of you and you must shear(修剪) it well. And I will give the reddest and biggest apple to him who does it the most quickly and best.”
After the competition, I won and I got the biggest apple. In our family, as long as you want to get the best things, you must take part in competition. I think it is fair. No matter what you want, you must pay lots of efforts.
【小题1】The criminal got the reddest and biggest apple because______.

A.he knew how to make his mother happy from her answer
B.he told the truth that he wanted a smaller one
C.elder brother should of course have the bigger one
D.his mother loved him more than she loved the younger brother

【小题2】We can conclude from the passage that _______.

A.it’s wrong to ask children to choose apples when they are not old enough.
B.it’s wrong to ask children not to always think of themselves.
C.it’s important to make children aware that no matter what they want, they must pay work
D.it’s always necessary to have a competition when we give children apple.

【小题3】The writer tells the story by _______.

A.organizing it in the order of time.
B.describing it in the order of space
C.providing some scientific information
D.making a comparison between two men

【小题4】It is implied in the passage that _______.

A.a mother’s educational method has a great influence on a child’s growing.
B.in order to get what we want, we should play hard.
C.we should always try to win competitions which can bring us a lot.
D.giving children apples will lead them to become criminals.

安徽省六安中学2019-2020学年高一下学期期末考试英语试题

3 .    Kong Zi, also called Confucius (551-479B. C. ), and Socrates (苏格拉底) (469-399 B. C. ) lived only a hundred years apart, and during their lifetimes there was no contact between China and Greece, but it is interesting to look at how the world that each of these great philosophers came from shaped their ideas, and how these ideas in turn, shaped their societies.

Neither philosopher lived in times of peace, though there were more wars in Greece than in China. The Chinese states were very large and feudal, while the Greek city-states were small and urban. The urban environment in which Socrates lived allowed him to be more radical (激进的) than Confucius. Unlike Confucius, Socrates was not asked by rulers how to govern effectively. Thus, Socrates was able to be more idealistic, focusing on issues like freedom, and knowledge for its own sake. Confucius, on the other hand, advised those in government service, and many of his students went out to government service.

Confucius suggested the Golden Rule as a principle for the conduct of life: “Do not do to others what you would not want others to do to you.” He assumed that all men were equal at birth, though some had more potential than others, and that it was knowledge that set men apart. Socrates focused on the individual, and thought that the greatest purpose of man was to seek wisdom. But like Confucius, he also believed that the superior class should rule the inferior (下层的) classes.

For Socrates, the family was of no importance, and the community of little concern. For Confucius, however, the family was the centre of the society, with family relations considered much more important than political relations.

Both men are respected much more today than they were in their lifetimes.

【小题1】Which of the following is TURE according to the first paragraph?

A.Socrates and Confucius had much in common.
B.Confucius had much influence on Socrates’ ideas.
C.There were cultural exchanges between China and Greece.
D.The societies were influenced by the philosophers’ ideas.

【小题2】Socrates shared with Confucius the idea that ________.

A.all men were equal when they were born
B.the lower class should be ruled by the upper class
C.the purpose of man was to seek freedom and wisdom
D.do not do to others what you would not want others to do to you

【小题3】What made some people different from others according to Confucius?

A.Knowledge. B.Potential. C.Family. D.Community.

【小题4】This passage is organized in the pattern of ________.

A.time and events B.comparison and contrast
C.cause and effect D.definition and classification

安徽省六安中学2019-2020学年高一下学期期末考试英语试题

安徽省蚌埠市2019-2020学年高一下学期期末学业水平监测生物试题

安徽省蚌埠市2019-2020学年高一下学期期末学业水平监测生物试题
1 . 细胞不能无限长大的原因不包括(   )

A.细胞体积越大,物质运输的效率越低
B.如果细胞太大,细胞核的“负担”就会过重
C.细胞表面积与体积的关系限制了细胞的长大
D.细胞不能无限长大,是受生物体型的影响

安徽省蚌埠市2019-2020学年高一下学期期末学业水平监测生物试题

2 . 下列关于细胞周期的叙述,正确的是(   )

A.细胞周期的大部分时间处于分裂期
B.机体内所有的细胞都处于细胞周期中
C.抑制 DNA 的合成,细胞将停留在分裂期
D.细胞分裂间期为细胞分裂期做物质准备

安徽省蚌埠市2019-2020学年高一下学期期末学业水平监测生物试题

3 . 下图表示根尖细胞有丝分裂过程中,每条染色体的 DNA 含量变化曲线。下列有关叙述正确的是(   )
说明: figure

A.ab 时期染色质逐渐缩短变粗
B.bc 时期高尔基体活跃,出现细胞板
C.cd 时期细胞分裂成为两个子细胞
D.de 时期细胞中可以有两套形态数目完全相同的染色体

安徽省蚌埠市2019-2020学年高一下学期期末学业水平监测生物试题

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题
1 . 在2020年抗击新型冠状病毒肺炎的战役中化学品发挥了重要作用。下列说法中错误的是(   )

A.医用消毒酒精中乙醇的浓度为95%
B.生产医用防护口罩的原料聚丙烯纤维属于有机高分子材料
C.84消毒液、二氧化氯泡腾片可作为环境消毒剂
D.硝酸铵制成的医用速冷冰袋利用了硝酸铵溶于水吸热的性质

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

2 . 设NA为阿伏加德罗常数的值。由一种阳离子与两种酸根阴离子组成的盐称为混盐。向混盐CaOCl2中加入足量浓硫酸,发生反应:CaOCl2+H2SO4(浓)=CaSO4+Cl2↑+ H2O。下列说法正确的是

A.明矾、小苏打都可称为混盐
B.在上述反应中,浓硫酸体现氧化剂和酸性
C.每产生1molCl2,转移电子数为NA
D.1molCaOCl2中共含离子数为4NA

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

3 . 根据下列实验操作和现象所得到的结论正确的是(  )

选项 实验 现象 结论
A 向苯酚浊液中加入Na2CO3溶液 溶液变澄清 酸性:苯酚>碳酸
B 将氯乙烷和NaOH溶液共热几分钟,冷却,滴入AgNO3溶液 有白色沉淀生成 氯乙烷中含有氯元素
C 向2支盛有2mL相同浓度银氨溶液的试管中,分别加入2滴相同浓度的NaCl和NaI溶液 一支无明显现象,另一支产生黄色沉淀 相同条件下,AgI比AgCl的溶解度小
D C2H5OH与浓硫酸170℃共热,制得的气体通入酸性KMnO4溶液 KMnO4溶液褪色 乙烯能被KMnO4氧化

 

A.A B.B C.C D.D

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

4 . 下列有关化学用语表示正确的是(   )

A.对硝基甲苯的结构简式:figure
B.离子结构示意图figure既可以表示35Cl,也可以表示37Cl
C.NH5的结构与NH4Cl相似,NH5的结构式:figure
D.CO2的比例模型:figure

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

5 . 下列各组离子在指定溶液中一定能大量共存的是(  )

A.滴加盐酸可以产生沉淀的溶液中:Ca2+、Na+、NOeqId8e39dda2bc794bfdb93279a4ab2c811d、K+
B.0.1mol/LFeCl2溶液:K+、Mg2+、SOeqId39e5c5e940ad451f8bb8360e4c07ab9f、MnOeqId9f991bd2155e41948692e7095a63b230
C.0.1mol/L的NaHCO3溶液中:SOeqId39e5c5e940ad451f8bb8360e4c07ab9f、AlO2、NHeqId753c7f7e03c94e019968774cf0407e03、Br
D.(NH4)2Fe(SO4)2的溶液中:Fe3+、Cl、Br、K+

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

6 . X、Y、Z、W是四种原子序数依次增大的短周期元素,W的最外层电子数为X最外层电子数的一半,X、Y、Z的原子半径依次减小,X、Y、Z组成的一种化合物(ZXY)2的结构式为Y≡X—Z—Z—X≡Y。下列说法正确的是

A.(XY)2中X元素的化合价为+3
B.Y的氧化物对应的水化物是强酸
C.化合物W(Y3)2中只含有离子键
D.X和Z组成的化合物中不可能所有原子都达到8电子稳定结构

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

7 . 为落实“五水共治”,某工厂拟综合处理含NH4+废水和工业废气(主要含N2、CO2、SO2、NO、CO,不考虑其他成分),设计了如下流程:
下列说法不正确的是
figure

A.固体1中主要含有Ca(OH)2、CaCO3、CaSO3
B.X可以是空气,且需过量
C.捕获剂所捕获的气体主要是CO
D.处理含NH4+废水时,发生反应的离子方程式为:NH4++NO2==N2↑+2H2O

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

8 . 下列关于物质保存或性质的描述错误的是(  )

A.金属钠不可以保存在无水乙醇中
B.氢氧化铜的悬浊液加热后变为黑色
C.氟化钠溶液需保存在带玻璃塞的细口瓶中
D.向盛二氧化碳的塑料瓶中加入饱和碳酸钠溶液,振荡后会变浑浊

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

9 . 研究发现Pd2团簇可催化CO的氧化,在催化过程中路径不同可能生成不同的过渡态和中间产物(过渡态已标出),下图为路径1和路径2催化的能量变化。下列说法错误的是
figure

A.CO的催化氧化反应为2CO+O2=2CO2
B.反应路径1的催化效果更好
C.路径1和路径2第一步能量变化都为3.22 eV
D.路径 1 中最大能垒(活化能)E =1.77 eV

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

10 . 美国斯坦福大学的工程师设计出一种从污水“提取”潜在电能的新型微生物电池,该电池能将生活污水中的有机物分解同时发电,电池结构如图所示。已知a电极为惰性材料,b电极为Ag2O。下列说法不正确的是(   )
figure

A.a电极是负极,b电极是正极
B.b电极发生的反应是Ag2O+2e+2H+=2Ag+H2O
C.a电极每生成标准状况下2.24LCO2,可向b电极转移0.1mol电子
D.高温条件下,该电池不能正常工作

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

11 . 下列关于有机化合物的说法正确的是

A.糖类、油脂、蛋白质均只含C、H、O三种元素
B.乙烯,乙醇、植物油均能使酸性高锰酸钾溶液褪色
C.2 -苯基丙烯(figure )分子中所有原子共平面
D.二环[1,1,0]丁烷(figure)的二氯代物有3种(不考虑立体异构)

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

12 . 实验室利用SO2和Cl2在活性炭作用下制取SO2C12,原理为SO2(g)+Cl2(g)⇌SO2Cl2(l)  ∆H=-97.3kJ/mol。装置如图所示(部分装置已省略)。已知SO2C12的熔点为-54.1℃,沸点为69.1℃,遇水能发生剧烈反应并产生白雾。下列说法正确的是
figure

A.乙中盛放的试剂为无水氯化钙
B.制备过程中需要将装置甲置于冰水浴中
C.用来冷却的水应该从a口入,b口出
D.可用硝酸与亚硫酸钠反应制备二氧化硫

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

13 . 25℃时,某混合溶液中c(CH3COOH)+c(CH3COO)=0.1mol·L-1,1gc(CH3COOH)、1gc(CH3COO)、lgc(H+)和1gc(OH)随pH变化的关系如下图所示。Ka为CH3COOH的电离常数,下列说法正确的是(  )
说明: figure

A.O点时,c(CH3COOH)=c(CH3COO)
B.N点时,pH=lgKa
C.该体系中,c(CH3COOH)=eqIdccbab18bc36e43f4ae478b6766499df8 mol·L-1
D.pH由7到14的变化过程中,CH3COO的水解程度始终增大

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

14 . 室温下,向100mL饱和的H2S溶液中通入SO2气体(气体体积换算成标准状况),发生反应:2H2S+SO2=3S↓+2H2O,测得溶液pH与通入SO2的关系如图所示。下列有关说法错误的是(   )
figure

A.a点水的电离程度最大
B.该温度下H2S的Ka1≈10-7.2
C.曲线y代表继续通入SO2气体后溶液pH的变化
D.a点之后,随SO2气体的通入,eqId4f11c773b12749f0ad862250cc3106aa的值始终减小

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

15 . 氮化锂(Li3N)是有机合成的催化剂,Li3N遇水剧烈反应。某小组设计实验制备氮化锂并测定其纯度,装置如图所示:
figure
实验室用NH4Cl溶液和NaNO2溶液共热制备N2
(1)盛装NH4Cl溶液的仪器名称是___________。
(2)安全漏斗中“安全”含义是__________。实验室将锂保存在_____(填“煤油”“石蜡油”或“水”)中。
(3)写出制备N2的化学方程式__________。
(4)D装置的作用是____________。
(5)测定Li3N产品纯度:取mg Li3N产品按如图所示装置实验。
figure
打开止水夹,向安全漏斗中加入足量水,当Li3N完全反应后,调平F和G中液面,测得NH3体积为VL(已折合成标准状况)。
①读数前调平F和G中液面的目的是使收集NH3的大气压________(填“大于”“小于”或“等于”)外界大气压。
②该Li3N产品的纯度为________%(只列出含m和V的计算式,不必计算化简)。若 Li3N产品混有Li,则测得纯度_____________(选填“偏高”“偏低”或“无影响”)。

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

16 . 利用化学原理可以对工厂排放的废水、废渣等进行有效检测与合理处理。某工厂对制革工业污泥中Cr(III)的处理工艺流程如下:
说明: figure
已知:①硫酸浸取液中的金属离子主要是Cr3+,其次是Fe3+、Al3+、Ca2+和Mg2+
②Cr2OeqIdf84e655b3895446984383511fce6b5a8+H2OeqIdee0ec79c14b24b02b686873dc2b358072CrOeqId39e5c5e940ad451f8bb8360e4c07ab9f+2H+
③常温下,部分阳离子以氢氧化物形式沉淀时溶液的pH如下:

阳离子 Fe3+ Mg2+ Al3+ Cr3+
沉淀完全时的pH 3.7 11.1 5.4(>8溶解) 9(>9)溶解

 
(1)实验室用18.4mol·L-1的浓硫酸配制480mL2mol·L-1的硫酸,配制时所用玻璃仪器除烧杯、玻璃棒和胶头滴管外,还需________。
(2)加入NaOH溶液使溶液呈碱性,既可以除去某些杂质离子,同时又可以将Cr2OeqIdf84e655b3895446984383511fce6b5a8转化为__________(填微粒的化学式)。
(3)钠离子交换树脂的反应原理为Mn++nNaR=MRn+nNa+,则利用钠离子交换树脂可除去滤液II中的金属阳离子有_______。
(4)写出上述流程中用SO2进行还原时发生反应的离子方程式:____________。
(5)沉淀滴定法是测定粒子浓度的方法之一,为了测定某废水中SCN的浓度,可用0.1000mol·L-1 AgNO3标准溶液滴定待测液,已知:

银盐性质 AgCl AgI AgCN Ag2CrO4 AgSCN
颜色 白色 黄色 白色 砖红色 白色
Ksp 1.8×10-10 8.3×10-17 1.2×10-16 3.5×10-11 1.0×10-12

 
①滴定时可选为滴定指示剂的是_______(填编号),滴定终点的现象是_________。

A.NaCl B.K2CrO4 C.KI D.NaCN

②取某废水25.00mL,滴定终点时消耗AgNO3标准溶液10.00mL,则废水中SCN的物质的量浓度为______________。

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

17 . 新技术的开发应用,不仅有利于改善环境质量,而且能充分开发“废物”的潜在价值。回答下列问题:
(1)用烟道气与氢气来合成甲醇涉及到如下几个反应:
①CO(g)+2H2(g)=CH3OH(g) ΔH=-91kJ·mol-1
②2CO2(g)=2CO(g)+O2(g) ΔH=+566kJ·mol-1
③2H2(g)+O2(g)=2H2O(g) ΔH=-483.6kJ·mol-1
④CO2(g)+3H2(g)=CH3OH(g)+H2O(g) ΔH=___________kJ·mol-1
(2)在容积均为2L的两个恒容密闭容器中发生反应CO(g)+H2O(g)eqIdee0ec79c14b24b02b686873dc2b35807CO2(g)+H2(g),有关数据如下:

容器 温度/℃ 起始量 达到平衡
CO/mol H2O/mol H2/mol CO转化率 所需时间/min
1 800 2 1   eqId50a4466fc9af47fb8d13cd849d98a1d7 3
2 800 1 2 n x  

 
①800°C时该反应的平衡常数K=____________。
②容器2中x=_______,n=_______。
(3)反应(NH4)2CO3+H2O+CO2eqIdee0ec79c14b24b02b686873dc2b358072NH4HCO3可用于捕捉空气中的CO2,为研究温度对(NH4)2CO3捕获CO2效率的影响,在某温度T1下,将一定量的(NH4)2CO3溶液置于密闭容器中,并充入一定量的CO2气体,在t时刻,测得容器中CO2气体的浓度。然后分别在温度为T2T3T4T5下,保持其他初始实验条件不变,重复上述实验,经过相同时间测定CO2气体的浓度,得到的曲线图如图:
说明: figure
①ΔH______0(填“>”“<”或“=”)。T1T2区间,c(CO2)变化的原因是______。
②已知常温下NH3·H2O的电离常数K=1.8×10-5,碳酸的电离常数K1=4.4×10-7K2=4.7×10-11,则恰好完全反应时所得的NH4HCO3溶液中c(H+)______c(OH)(填“>”“<”或“=”)。
③在图中所示五种温度下,该反应的平衡常数最大的温度是______。

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

18 . 钯(Pd)、锌及其化合物在合成酮类物质中有极其重要的作用,如图为合成figure的反应过程:
figure
回答下列问题:
(1)I原子价电子排布式为___________,其能量最高的能层是___________(填能层符号)。
(2)H、C、O三种元素的电负性由大到小的顺序为___________。
(3) figure中碳原子的杂化方式为___________。
(4)ZnCl2溶液中加入足量氨水,发生的反应为ZnCl2+4NH3·H2O=[Zn(NH3)4]Cl2+4H2O。
①上述反应涉及的物质中,固态时属于分子晶体的是___________。
②NH3的空间构型为___________。
③1 mol [Zn(NH3)4]Cl2中含有___________mol σ键。
(5)Zn和Cu可形成金属互化物(ZnCu),该金属互化物中所有金属原子均按面心立方最密堆积,若所有Cu均位于晶胞的面心,则Zn位于晶胞的___________。
(6)金属钯的堆积方式如图所示:
figure
①该晶胞中原子的空间利用率为___________(用含π的式子表示)。
②若该晶胞参数a=658 pm,则该晶胞密度为___________(列出计算表达式)g·cm3

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

19 . 甲苯是一种重要的化工原料,用甲苯可以合成多种化工产品,下图是用甲苯合成对甲基苯酚苯甲醛树脂、食品防腐剂尼泊金酸乙酯的合成路线。
说明: figure
已知:①说明: figure  ②说明: figure
请回答下列问题:
(1)A的结构简式是_______。
(2)反应①~⑥中属于取代反应的有______个。
(3)B分子中含有的官能团是____________,分子中不同化学环境的氢原子有_______种。
(4)写出上述合成路线中发生缩聚反应的化学方程式:_________。
(5)下列有关E的说法正确的是_________(填字母代号)。
a.分子式为C7H5O2Br      b.在NaOH的醇溶液中可以发生消去反应
c.苯环上的一氯代物有两种    d.分子中所有原子可能在同一平面上
(6)尼泊金酸乙酯有多种同分异构体,符合下列条件的同分异构体有__________种。
①遇FeCl3溶液呈紫色;②为苯的对位二元取代物;③不能发生银镜反应,能发生水解反应。
(7)以甲苯为起始原料,也可制得医用麻醉药苄佐卡因(说明: figure),设计一种制取苄佐卡因的合成路线(其他反应物自选)__________。

安徽省六安市舒城中学2019-2020学年高二下学期期末考试化学试题

安徽省六安中学2019-2020学年高一(下)期中物理试题

安徽省六安中学2019-2020学年高一(下)期中物理试题
1 . 如图所示的皮带传动装置中,轮B和C同轴,A、B、C分别是三个轮边缘的质点,且其半径RA=RC=2RB,则三质点的向心加速度之比aA:aB:aC等于(  )
figure

A.4:2:1 B.2:1:2 C.1:2:4 D.4:1:4

安徽省六安中学2019-2020学年高一(下)期中物理试题

2 . 长为L的细绳,一端系一质量为m的小球,另一端固定于某点.当绳竖直时小球静止,再给小球一水平初速度v0,使小球在竖直平面内做圆周运动.关于小球的运动下列说法正确的是
说明: figure

A.小球过最高点时的最小速度为零
B.小球开始运动时绳对小球的拉力为meqId83503e7eeab341ac9e74e8471f967b8f
C.小球过最高点时速度大小一定为eqIdc2662fc97ae64697b91107039334a9d7
D.小球运动到与圆心等高处时向心力由细绳的拉力提供

安徽省六安中学2019-2020学年高一(下)期中物理试题

3 . 一人造地球卫星绕地球做匀速圆周运动,假如该卫星变轨后做匀速圆周运动,速度减小为原来的eqId49b7b111d23b44a9990c2312dc3b7ed9,不考虑卫星质量的变化,则变轨前后卫星的(  )

A.向心加速度大小之比为4:1
B.角速度大小之比为2:1
C.周期之比为1:8
D.轨道半径之比为1:2

安徽省六安中学2019-2020学年高一(下)期中物理试题

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题
1 . 阅读下面的文言文,完成各题。

张衡传

范晔

张衡平子,南阳西鄂人也。衡少善属文,游于三辅,因入京师,观太学,遂通五经,贯六艺。虽才高于世,而无骄尚之情。常从容淡静,不好交接俗人。永元中,举孝廉不行,连辟公府不就。时天下承平日久,自王侯以下莫不逾侈。衡乃拟班固《两都》作《二京赋》,因以讽谏。精思傅会,十年乃成。大将军邓骘奇其才,累召不应。

衡善机巧,尤致思于天文阴阳历算。安帝雅闻衡善术学,公车特征拜郎中,再迁为太史令。遂乃研核阴阳,妙尽璇机之正,作浑天仪,著《灵宪》、《算罔论》,言甚详明。

顺帝初,再转复为太史令。衡不慕当世,所居之官辄积年不徙。自去史职,五载复还。

阳嘉元年,复造候风地动仪。以精铜铸成,员径八尺,合盖隆起,形似酒尊,饰以篆文山龟鸟兽之形。中有都柱,傍行八道,施关发机。外有八龙,首衔铜丸,下有蟾蜍,张口承之。其牙机巧制,皆隐在尊中,覆盖周密无际。如有地动,尊则振龙,机发吐丸,而蟾蜍衔之。振声激扬,伺者因此觉知。虽一龙发机,而七首不动,寻其方面,乃知震之所在。验之以事,合契若神。自书典所记,未之有也。尝一龙机发而地不觉动,京师学者咸怪其无征。

后数日驿至,果地震陇西,于是皆服其妙。自此以后,乃令史官记地动所从方起。

时政事渐损,权移于下,衡因上疏陈事。后迁侍中,帝引在帷幄,讽议左右。尝问天下所疾恶者。宦官惧其毁己,皆共目之,衡乃诡对而出。阉竖恐终为其患,遂共谗之。衡常思图身之事,以为吉凶倚仗,幽微难明。乃作《思玄赋》以宣寄情志。

永和初,为河间相。时国王骄奢,不遵典宪;又多豪右,共为不轨。衡下车,治威严,整法度。阴知奸党名姓,一时收禽,上下肃然,称为政理。视事三年,上书乞骸骨,征拜尚书。年六十二,永和四年卒。

【小题1】对下列句中加点词的解释,不正确的一项是(  )

A.衡少善文            属:连缀
B.安帝闻衡善术学      雅:素常
C.京师学者咸怪其无    征:征兆
D.衡下车,治威严         下车:官吏初到任

【小题2】下列各句中加点的字,意义和用法相同的一项是(  )

A.①衡上疏陈事                  ②宾客至蔺相如门谢罪
B.①精思傅会,十年成            ②设九宾礼于廷
C.①尝一龙机发地不觉动          ②蟹六跪二螯
D.①虽才高于世,而无骄尚情      ②空自苦亡人

【小题3】下列对文中加点词语的相关内容的解说,不正确的一项是(  )

A.字是男子20岁行加冠礼时所取的,是对名的解释和补充,对名有表述、阐明的作用,女子及笄时也可取字。
B.太学是古代最高学府,太学始于西周,汉武帝时,于京师长安设立太学,为中央官学,太学祭酒兼掌全国教育行政。
C.出指京官外调。文中表示官职变动的词语有“迁”“拜”“转”“徙”等,其中“迁”专指升职,“左迁”是贬官。
D.乞骸骨,指古代官吏因年老请求退职,回老家安度晚年,这是请求退休的委婉说法,古代官员正常退休叫作“致仕”。

【小题4】把文中画横线的句子翻译成现代汉语。
尝问天下所疾恶者。宦官惧其毁己,皆共目之,衡乃诡对而出。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

2 . 阅读下面的文言文,完成各题。

安元信,字子言,代北人。元信以将族子,便骑射,幼事武皇,从平巢、蔡。光启中,吐浑赫连铎寇云中,武皇使元信拒之,元信兵败于居庸关。武皇性严急,元信不敢还,遂奔定州,王处存待之甚厚,用为突骑都校。乾宁中,处存子郜嗣位。时梁军攻河朔三镇奔命不暇梁将张存敬军奄至城下既无宿备郜惧挈其族奔太原元信从之武皇待之如初用为铁林军使梁将氏叔琮之攻河东也,别将葛从周自马岭入,元信伏于榆次,挫其前锋。梁将李思安之攻上党也,王师将壁高河,为梁军所逼。别将秦武者,尤为难敌,元信与斗,毙之。由是梁军解去,城垒得立。武皇赐所乘马及细铠仗,迁突阵都将。庄宗嗣晋王位,元信从救上党,破夹寨,复泽、潞,以功授检校司空,赐玉鞭名马。柏乡之役,日晚战酣,元信重伤,庄宗自临傅药。其年,改检校司徒。从庄宗定魏博,移为博州刺史。与梁对垒德胜渡,元信为右厢排阵使。庄宗平定河南,移授横海军节度使。时契丹犯边,元信与霍彦威从明宗屯常山,元信恃功,每对明宗以成败勇怯戏侮彦威,彦威不敢答。明宗曰:“成由天地,不由于人。当氏叔琮围太原,公有何勇!今国家运兴,致我等富贵。”元兴乃起谢,不复以彦威为戏。明宗即位,以元信尝为内衙都校,尤厚遇之。明年,移镇徐州。王师之讨高季兴,襄帅刘训逗挠军期,移授元信山南东道节度使以代训。岁余,改归德军节度使。明宗不豫,求入。末帝即位,授潞州节度使,加检校太尉。清泰三年二月,以疾卒于镇,时年七十四。太师。晋高祖即位,以元信宿望,令礼官定谥曰忠懿。

(节选自《旧五代史·安元信传》)

【小题1】下列对文中画波浪线部分的断句,正确的一项是(  )

A.时梁军攻河朔/三镇奔命不暇/梁将张存敬军奄至城下/既无宿备/郜惧挈其族奔太原/元信从之/武皇待之如初/用为铁林军使/
B.时梁军攻河朔三镇/奔命不暇/梁将张存敬军奄至/城下既无宿备/郜惧/挈其族奔太原/ 元信从之武皇/待之如初/用为铁林军使/
C.时梁军攻河朔三镇/奔命不暇/梁将张存敬军奄至城下/既无宿备/郜惧/挈其族奔太原/ 元信从之/武皇待之如初/用为铁林军使/
D.时梁军攻河朔/三镇奔命不暇/梁将张存敬军奄至/城下既无宿备/郜惧/挈其族奔太原/ 元信从之/武皇待之如初/用为铁林军使/

【小题2】下列对文中加点词语的相关内容的解说,不正确的一项是(  )

A.光启是封建帝王用以纪年的年号,《苏武传》中的“始元”就是汉朝皇帝的一个年号。
B.河东指黄河以东地区,黄河由北向南流经山东省的西南境,因在黄河以东,故称河东。
C.刺史最初是朝廷另派人员检核各地的不常置职官,后成为常置的地方军事行政长官。
D.赠,追赠,古代皇帝或者朝廷为已死的官员及其亲属加封官职、勋位,以示表彰。

【小题3】下列对原文有关内容的概括和分析,不正确的一项是(  )

A.安元信出身不凡,多次征战。他是将门之子,自幼就侍奉武皇身边,跟随武皇征战。
B.安元信深受皇恩,享有殊遇。他即使先投靠他人后又归顺武皇,也能得到武皇宽恕。
C.安元信作战勇猛,建立奇功。他斩杀劲敌,解除围困,获得战马铠甲和官职等奖赏。
D.安元信居功自傲,不知悔改。他凭借战功公然羞辱他人,即使皇帝指出也坚持不改。

【小题4】把文中画横线的句子翻译成现代汉语。
梁将李思安之攻上党也,王师将壁高河,为梁军所逼。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

3 . 阅读下面这首宋诗,完成各题。

春庭

文同

春院阴阴翠霭低,春庭寂寂晓光迷。

花间蜂去抱黄粉,苔上燕来衔绿泥。

两行高梧初荫合,一翻新草恰生齐。

 微禽已识幽人意,飞下栏干向里啼。

【小题1】下列对这首诗的赏析,不正确的一项是(  )

A.雾霭青翠幽暗,晨光迷离静寂,首联照应标题,描绘出一幅幽静、朦胧的庭院图景。
B.诗人在展现春天庭院景色时关注景物颜色,“黄粉”“绿泥”写出了春天的自然气息。
C.“初荫合”“恰生齐”细致形象地描绘出春天的景色,“初”“恰”两个字使用精妙。
D.本诗前两联描写春天庭院场景,后两联感事抒怀,描写与抒情紧密关联,脉络清晰。

【小题2】诗的最后两句有何含意?请简要分析。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

4 . 补写出下列句子中的空缺部分。
(1)荀子在《劝学》中以“雕刻打磨”为例,从正面论证坚持学习重要性的两句是:“________________,_________________”。
(2)孟子在《寡人之于国也》中从渔业方面阐述王道,并符合当下可持续发展观的两句是:“__________________________,______________________”。
(3)杜甫的《登高》中,道出郁积诗人心中的自身之苦和国运之恨,无限悲凉难以排遣的句子是:“________________,________________”。
(4)李白的《蜀道难》中,写出水石相激、山谷轰鸣的惊险场面的句子是:“_______,_______”。
(5)贾谊在《过秦论》中用“______________,_________________”两句形象描写了始皇派遣得力的将领、士兵守卫要塞,盘问过往行人的情景。
(6)辛弃疾在《永遇乐·京口北固亭怀古》中写到刘义隆草率出兵,意图像汉朝大将霍去病那样建立功业,最终却落得一个“_______________________”的后果。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

5 . 阅读下面文章,完成各题。

先生孝富

秦秀文

先生姓胡,孝富是他的名字。

先生是我小学时的班主任兼语文老师,只带了我两个多学期。

学校很小,一个班级只有三十多人,小学校没有专门的音乐老师,基本上都是退休教师担任,上课内容也基本是让学生自习。先生坚持自己班级的音乐课由自己兼任,他懂乐谱。先生多才多艺,他会吹口琴和笛子。他教我们简谱,用他那擦得锃亮的口琴,为我们吹奏充满着母爱的《摇篮曲》。至今,我依然记得先生教我们唱“月儿明,风儿静,树叶儿遮窗棂”的情形,也永远不会忘记他掷地有声的话语:“伢子们,无论什么时候都不能忘了妈妈当初的不容易啊!”

我性格内向,与大人讲话就会脸红。先生找到我,说:“每次做完早操后,还有很长一段时间才能上课,我有一个想法,每天早上由咱班几个同学准备一个节目,就在校园中的空地上为大家表演。我发现你在熟悉的同学面前非常开朗,而且讲话还很幽默,这件事就交给你负责。”有一份忐忑,但于我更多的是兴奋,我们为全校学生表演了一个学期。如今,我依然记得我排的第一个小品叫《此地无银三百两》。

学期期末,全镇统考,成绩要进行评比,老师和学生都非常重视。先生给大家开会,一定要考出自己真实的水平,绝不允许有作弊的现象发生。考试前一天的下午先生去镇上开会,没办法监考,我们班的一些同学为了考出好成绩,就偷偷商量考试时互相交换答案。

拿成绩单那天,本以为先生一定会因为大家取得的好成绩表扬一下我们,没想到他从办公室出来就黑着脸。我感受到了先生最厉害的一次脾气,几乎是咆哮。他将本来就破旧的桌子捶得“咣当”响,他说:“你们为了几个不值钱的分数,丢了自己的尊严!”那个寒假,是我整个小学阶段过得最不快乐的假期,虽然我并没有抄袭。

“六一”儿童节,作为全校“三好学生”的代表,我被安排在全校大会上讲话,看着黑压压的人头,我脑子一片空白,事先准备的稿子全都跑到九霄云外了,我吞吞吐吐,憋了半天,最后说了一句连自己都不敢相信的话:“希望大家都向我学习。”顿时全场一片笑声,我的脸当时就涨得通红。第二天,我低着头,为自己昨天的表现难为情。我知道先生肯定要骂我了,我丢了整个班级的脸。先生走进了班级,面对大家说:“我要表扬一下我们的班长,他在忘词的情况下,仍然坚持结束了自己的演讲,这是一份能力的体现。他的最后一句,我尤其喜欢,让别人向自己学习,能说出这句话,需要多大的魄力!这是自信的表现,我就喜欢这样的学生!”听了这话,全班为我报以热烈的掌声。当时连我都觉得自己是位英雄,之前的那份尴尬一扫而光。

五年级的第一学期,期中考试刚过。一天,校长、先生,还有一位女老师一起走进了我们的班级。校长的出现,让班级的气氛陡然凝重。校长说,村里缺少一位文书,村干部选中了胡老师,胡老师一再推脱不掉,旁边的女老师就是村里专门安排来接胡老师课的江老师。

那一刻,我们所有的人都懵了。有人站起来,顶撞校长,说我们不愿意。先生让他坐下,笑着对大家说:“你们应该为我高兴啊,我升官了啊。江老师是个非常优秀的老师,我相信她一定会做得比我好很多。另外,我也会一直关注你们大家的。”不知是谁首先哭出了声音,全班同学顿时嚎啕大哭起来。

先生的家因为电线老化起火时,我已经上了初中。先生的家在一个四周农田和池塘围绕的土墩上,起火那天,大家都不在家。大火让先生变得一无所有,先生站在被熏黑的残砖断瓦前,哭了。乡亲们没有让先生一家在寒风中忍饥挨饿。大家送来了粮食、被子、衣服,还有皱巴巴的钱票。我第一次看到,一个人的事情成为了全村男女老少所有人的事情,没有任何命令,没有任何倡议。

后来,我上学走了,先生因为癌症离开了我们,我至今后悔,自己老是拿学习太忙当托辞,没有常去看先生。

先生没受过高等教育,但是在他短暂的一生中,用自己的一言一行,诠释了一位教育工作者的伟大与崇高,让我们这些受其恩惠的学生多年来对他一直不忘。

当年,我就告诉自己,要通过努力,好好学习,考到城市,找一份足以让先生欣慰的工作,然后接先生到城里好好玩玩,好好回报他。如今,我早已在城里安了家,可是先生啊,学生又能到哪里接到您啊?我现在能做的,只能是用自己最真的心和最大的热情去爱我的学生,就像先生当年爱我们那样。

(原载《班主任》2020年第3期,有删改)

【小题1】下列对文本相关内容和艺术特色的分析鉴赏,最恰当的一项是(  )

A.文章开篇寥寥几笔描写先生,语言简洁,却又清晰明确地勾勒出先生的形象特点,令人印象深刻。
B.作为“三好学生”代表,我在台上表现非常糟糕,但先生及时的鼓励消除了我的尴尬,让我顺利完成了讲话。
C.先生教我的时间很短,但带给我的影响却很深远,以至于我把学有所成、报答先生当成了学习的一种动力。
D.文章截取往事片段,于细微处写人,表现先生渊博的学识和崇高的人格,表达对先生的爱戴、怀念之情。

【小题2】结合上下文,分析文中画横线的句子的含意。
【小题3】文中说先生“诠释了一位教育工作者的伟大与崇高”,请结合作品简要分析。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

6 . 下列加点的字中注音完全正确的一项是(  )

A.(càn)头    桌(wěi)   猿(náo)     畏不前(xǐ)
B.新(zhēng)  (yǎn)然   (jiàn)或  撒手人(huán)
C.(qiān)细   (sǔn)头    (jiàn)生    (duó)长絜大
D.(máng)隶     执(niù)   (nú)马      前(jù)后恭

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

7 . 下列词语书写完全正确的一项是

A.撕打  杜撰  难以捉摸   防微杜渐
B.调剂  战栗  自明得意   兴高采烈
C.萧瑟  国萃  闪烁不定   残羹冷炙
D.寒暄  炮烙  微不足道   孝悌之义

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

8 . 阅读下面的文字,完成各题。

当前我国正处于重大的社会转型期,人们思想活动的独立性、多样性、选择性日趋增强,体制、利益的调整以及各种思想的碰撞带来矛盾和冲突,社会主体之间的关系变得日益复杂。越是在思想多元的背景下,文化整合凝聚、规范认同的作用就愈加          ;越是在物质满足的语境中,构建符合当代国人生存状态和精神需求的文化就更加迫切。说到文化,不少人认为会唱两首歌,背两首诗,说几段排比句,就很有文化,殊不知这只是        。 即便是身怀绝艺的歌唱家、书画家,但是言行粗俗,道德低下,也只能是有魂无体,人们照样说你没文化。(       )。那种“假古董吃香、真文物遭殃”的怪相,那些              、过度包装的作品,是异化了的文化。

文化发展繁荣不是空喊口号,而是知时好雨、润物无声;文化神采飞扬不是搽脂抹粉,而是静水深流、精气内行。始终坚持先进文化引领,以系统的理念科学谋划,以务实的态度把握规律,以超前的思维         ,才能挥洒自如、令人向往,不断提高文化影响力、吸引力和竞争力。

【小题1】依次填入文中横线上的词语,全都恰当的一项是

A.凸显  孤陋寡闻  哗众取宠  举一反三
B.突显  浅尝辄止  巧言令色  举一反三
C.凸显  浅尝辄止  哗众取宠  融会贯通
D.突显  孤陋寡闻  巧言令色  融会贯通

【小题2】文中画横线的句子有语病,下列修改最恰当的一项是

A.即便是身怀绝艺的歌唱家、书画家,如果言行粗俗,道德低下,也只能是有体无魂,人们照样说你没文化。
B.即便是身怀绝艺的歌唱家、书画家,但是言行粗俗,道德低下,也只能是有体无魂,人们照样说你没文化。
C.即便是身怀绝艺的歌唱家、书画家,如果言行粗俗,道德低下,就只能是有魂无体,人们照样说你没文化。
D.即便是身怀绝艺的歌唱家、书画家,但是言行粗俗,道德低下,就只能是有魂无体,人们照样说你没文化。

【小题3】下列填入文中括号内的语句,衔接最恰当的一项是

A.不是以具体的文化样式而论文化强弱,而是全方位深度的表达
B.文化强弱不是以具体的文化样式而论,而是全方位深度的表达
C.不是以具体的文化样式而论文化强弱,而是全方位深度的表现
D.文化强弱不是以具体的文化样式而论,而是全方位深度的表现

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

9 . 根据下面的材料,概括中国愿意帮助法国修复巴黎圣母院的原因。

巴黎圣母院大火发生后,总统马克龙表示寻求国际帮助,以恢复重建巴黎圣母院。据法国方面介绍,中国是第一个与法国就修复巴黎圣母院达成政府间协议的国家,目前只有中国在这方面伸出了援手。中国是一个历史悠久的国家,古建筑物众多,这种以木质结构为主的建筑在中国实在是太多了,中国的专家积累了丰富的保护修复经验。事实上,中国在文物保护和修复方面帮助了很多国家,如柬埔寨吴哥古迹、乌兹别克斯坦花剌子模州希瓦古城等。

中法两国此前有着多方面文化交流的传统,“中法文化交流之春”于2006年正式创立,稳步促进两国文化的交流和互动。国家文物局局长刘玉珠表示要“以文明交流超越文明隔阂,以文明互鉴超越文明冲突,以文明共存超越文明优越。”

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

10 . 结合下面两幅图表,补写下面材料文字中的空缺部分。

说明: figure

2016年中国垃圾清运量为20362万吨,同比增长6.0%;2017年中国垃圾清运量为21520.9万吨,同比增长5.69%。实际上,从2012年起,①___________,预计2018年,_________②。从垃圾清运量和实际增长来看,___________③。所以,国家需要在政策上推动垃圾处理,加大生活垃圾清运投入,给环境治理“减负”。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

11 . 阅读下面的材料,根据要求写作。

旅行途中,后排,李乐沉浸在手机游戏中。父亲一边驾车,一边感叹:“现在生活真方便,想出来玩,开上车,将目的地输入导航,就什么都不用操心。走错路也会切换路线,根本不用熟悉环境,记住路线。”

一边的爷爷却说:“方便是方便,可孩子的生活反而没意思了。你还记不记得小时候,一群玩伴,人手一辆旧单车,大街小巷地到处疯。就算迷路了,也会自己想办法。一棵树,一块招牌,一张嘴,就把路找回来了,我和你妈从来不去担心你。你看乐乐现在,没了手机,一天还可以玩什么?”

听到父亲与爷爷的对话,李乐停下游戏,望着窗外一闪而过的风景,陷入了沉思。

读了以上材料,你是否心有所感?如果可以选择,你是愿意回到父亲的童年,还是享受当下的童年?……请自拟标题,写作成文,不少于 800 字。

安徽省合肥市第六中学2019-2020学年高一下学期期末考试语文试题

2020届安徽省合肥市第六中学高三最后一卷英语试题

2020届安徽省合肥市第六中学高三最后一卷英语试题

1 . Go to college or university in Ontario, Canada

Come and learn the relevant information about Ontario’s 20 public universities, 24 colleges or 400+ registered private career colleges.

Admissions standards and what to offer

In most cases, you need a high school diploma to go to college or university in Ontario. If you are 19 or older without a diploma, you can still apply to most, if not all schools.

Colleges offer certificate programs, diplomas, and degrees. Universities offer under-graduate and graduate degrees and other professional programs. All programs vary in length and preconditions—the pre-work or qualifications you need to be eligible (符合条件) for a program.

Check a school’s website or contact them directly for specific information about admissions.

How to apply

The process depends on where you want to go to school and your personal situation. If you live in Ontario, anywhere else in Canada or abroad, you apply through 1 of 2 places:

Colleges: www.ontariocolleges.ca

Universities: www.ouac.on.ca (the Ontario Universities’ Application Centre)

You will need to apply directly through a school if you are:

● planning to study part time

● a mature student (generally of a certain age and away from formal education for some time)

● an international student

● applying for graduate studies (e.g., a Masters or Doctoral degree)

● planning to attend a private career college

Loans, grants (补助金), scholarships

Canada Student Loans, Grants and Scholarships are open to all Canadians.

Canadian citizen and Ontario resident for at least 12 months: you could be eligible for OSAP (the Ontario Student Assistance Program) and other financial aid programs.

Canadian students living outside of Ontario: you can apply for financial aid through your home province or territory.

International students: you can apply for scholarships offered through the federal (联邦的) government, community agencies and colleges and universities directly.

【小题1】What do universities in Ontario offer students?

A.Honors degrees. B.Associate degrees.
C.Certificate programs. D.Professional programs.

【小题2】Where can international students apply for scholarships?

A.Through community agencies. B.Through their home governments.
C.Through other provinces in Canada. D.Through the Ontario Student Assistance Program.

【小题3】From which is the text probably taken?

A.A scientific journal. B.A research paper.
C.A travel brochure. D.An official website.

2020届安徽省合肥市第六中学高三最后一卷英语试题

2 .    As temperatures approached 90 degrees in New York City last July 4th, three police officers hurried into a Whole Foods Market to get something cold to drink. What they walked into was a heated human drama.

Once inside, the cops (警察) , Lt. Louis Sojo and Officers Esanidy Cuevas and Michael Rivera, were approached by a store security guard who asked for help with a suspected thief. The woman in question didn’t have the look of a career criminal. She was obviously scared, and her cheeks were wet with tears.

The cops looked quickly inside her bag. “Al1 we saw was containers of food. We didn’t see anything else,” Cuevas told CBS New York.

“I’m hungry,” she explained quietly.

Caught red-handed, the woman no doubt expected to be cuffed (带上手铐) and put into prison for the crime of being hungry while poor. But the cops had other ideas. “We’ll pay for her food,” Sojo told the surprised security guard.

There’d been no discussion among the three men, no need to see whether they were all in. It went unsaid. Instead, they picked up the woman’s bag and escorted (护送) her to a cash register, where each contrilbuted $10 to pay the bill. She would not be arrested today.

All the woman could do was weep in thankfulness. Covering her face with a handkerchief and drying her eyes, she repeated, “Thank you, thank you.”

She wasn’t the only one touched by this act of sympathy and understanding. “It was a very beautiful, genuine moment,” says Paul Bozymowski, who was at the store. He was so taken by what he’d witnessed that he posted a photo on Twitter for all to see.

But attention was never what the officers sought. They were driven by a far more common emotion. As Sojo told CNN, “When you look at someone’s face and see that they need you and they’re actually hungry, it’s pretty difficult as a human being to walk away from something like this.”

【小题1】Why did the woman weep at first?

A.She was scared of being arrested. B.She was wrongly accused of stealing.
C.She was too poor to pay for the goods. D.She was touched by the act of these cops.

【小题2】What does the underlined word “red-handed” in paragraph 5 refer to?

A.In the act of committing a crime. B.For lack of knowledge or experience.
C.Because of the blood-covered hands. D.On account of her pretended innocence.

【小题3】We can infer that the cops paid the bill for the woman to __________.

A.seek attention of the public B.gain both fame and wealth
C.solve the problem as soon as possible D.help the hungry and poor woman out of trouble

【小题4】Which of the following best describes the three cops?

A.Patient. B.Caring.
C.Humorous. D.Ambitious.

2020届安徽省合肥市第六中学高三最后一卷英语试题

3 .    When life gives you pineapples—and hundreds of millions of tons of pineapple waste—what do you do? Engineers in Singapore and Vietnam decided to tum all the waste into something useful—the heat barrier for their pineapple juice. Not only does their new material keep drinks cool better than many commercial coolers, but it could also offer a final resting place for the world’s pineapple waste.

To find a use for those leftovers, the researchers mixed pineapple fibers, which they cut up in an electric device, with a sticky agent as a solvent. They then treated the mix with sound waves at frequencies greater than 20 kHz and heated it in an oven at 80℃ for 2 hours. The suspension that formed was then cooled before being freeze-dried.

The result was a pale yellow aerogel (气凝胶) that is lightweight, flexible, and more than 96% porous (多孔的)—qualities that make it an ideal material against both heat and sound.

When the researchers wrapped a sheet of the pineapple aerogel around a military-style canteen bottle, they found that the aerogel could provide three times the heat exchange reduction of commercially available alternatives—they reported this month in Materials Chemistry and Physics. The gel-wrapped bottle kept -3℃ water cooled below 0℃ for 6 hours and liquid heated to 90℃ above 40℃ for 2.5 hours. What’s more, the pineapple gel also acted as a sound barrier; in another test, the gel did a better job of preventing noise from getting in or out than Basmel, a popular kind of sound barrier.

The findings provide a new, eco-friendly approach to recycling agricultural cast-offs—and a good excuse to get a better electric device for your kitchen.

【小题1】Why do engineers come up with the idea of the heat barrier?

A.To lower the cost of heat barriers. B.To make good use of pineapple waste.
C.To find a better cooler for pineapple juice. D.To turn pineapples into something more useful.

【小题2】What is the last step of making the pineapple aerogel?

A.Freeze-drying the suspension. B.Cooling the formed suspension.
C.Cutting up the pineapple leftovers. D.Treating the mix with sound waves.

【小题3】What can we learn about the pineapple aerogel from paragraph 4?

A.It kept the liquid heated to 130℃ for about 2.5 hours.
B.It kept the water cooled below -3℃ for nearly 6 hours.
C.It could be three times as effective as other heat barriers.
D.It did a better job as a sound barrier than as a heat barrier.

【小题4】What is the best title for the text?

A.A Better Way to Keep Drinks Cool. B.An Alternative Way to Recycle Waste.
C.Pineapple Waste, a Wonderful Drink Cooler. D.Pineapples, One of the Most Common Fruits.

2020届安徽省合肥市第六中学高三最后一卷英语试题

安徽省黄山市2019-2020学年高一下学期期末考试英语试题

安徽省黄山市2019-2020学年高一下学期期末考试英语试题

1 .    Let’s look at some inventions that had their roots in the UK.

The bagless vacuum cleaner(吸尘器), James Dyson,1979

There are some things we don’t know we need until someone invents them. For example, the bagless vacuum cleaner. James Dyson came up with the idea after spending a lot of money on an expensive cleaner that simply pushed dirt around.

Most of us would have given it up, but Dyson went on to change the basic principle of a vacuum cleaner — an idea that hadn’t been challenged for 100 years — by designing a system that removed the necessity of the bag for good. His final version took five years of research.

However, when Dyson first approached manufacturers (制造商) with his idea, he couldn’t interest them. But he didn’t give up and set up a factory in Wiltshire in 1993 to produce them himself. Two years later, Dyson’s products were outselling the competition.

The Mini Alec Issigonis, 1959

While the Americans were driving supersize Cadillacs, Britain famously went in the opposite direction and came up with a small car.

Alec Issigonis was responsible for the design and made a name for himself in motoring history with its launch (投放市场) in 1959 for the British Motor Corporation(BMC).

The Mini’s success wasn’t overnight. Many thought it “strange”, but it developed into a love affair with the British that’s never decreased, helped by the fact that many stars loved it.

The London sewage system, Joseph Bazalgette, 1865

Like any major city, London has always produced large amounts of waste. Give thanks to Joseph Bazalgette, an engineer who developed a far-reaching underground sewage system. It changed the process of getting rid of waste by dumping it into the Thames River. Even more impressive was his idea to construct pipes that would function for nearly 150 years and still be large enough to meet the need of the increasing population. As he said, “We’re only going to do this once.”

【小题1】Which of the following is true according to James Dyson’s experience?

A.He invented the first vacuum cleaner. B.He enjoyed immediate success.
C.His idea attracted many manufacturers. D.His product became a bestseller.

【小题2】The Mini won its popularity _____.

A.soon after its launch in 1959
B.because it was advertised by stars
C.with the help of some famous people’s preference
D.because people lost interest in supersize cars

【小题3】The underlined sentence in the last paragraph shows Bazalgette was _____.

A.cautious B.confident
C.far-sighted D.strong-minded

安徽省黄山市2019-2020学年高一下学期期末考试英语试题

2 .    A few years after Mom died, Dad showed up for lunch wearing the soft smile that took over his face whenever he was thinking about her. “I’ve found these,” he said, handing me a bag. “She would have wanted you to have them.”

I opened the bag to find dozens of shells, each one bearing Mom’s handwritten words: Stone Harbor, N. J. — 8-98. They were pretty common, but to Mom, they were evidence of her endlessly magical life.

She was 61 when she collected these shells, already showing signs of the lung disease that would kill her the next year. Mom needed an adventure. She loved seashore. So we decided to take her to Jersey Shore.

As soon as I said “Jersey Shore”, she started to shout over and over again— “I can’t believe I’m going to New Jersey!”

Once we got to Stone Harbor, Mom acted like the town mayor, greeting everyone as if they were loyal constituents. And she spent hours collecting shells on the beach. The morning we left, I found her photographing every corner of her bedroom. “I don’t even want to forget this,” she said.

For a long time, Mom’s shells stayed buried in a drawer. Last month, I rediscovered them. I put them where I can easily to see them. One by one, the shells are finding a new place in my home. They remind me to live a life like my mother — who never lost her sense of passion.

【小题1】The underlined word “them” in Paragraph 1 refers to             .

A.the bag the author’s dad found B.the photos the author’s mom took
C.the shells the author’s mom collected D.the words the author’s mom wrote

【小题2】Why did the author’s mom greet everyone in the Stone Harbor?

A.She knew them very well. B.She was very excited.
C.She wanted to make friends with them. D.She was popular among the people there.

【小题3】What do we know about the author’s mom?

A.She had a sense of adventure. B.She passed away at the age of 61.
C.She was brought up in New Jersey. D.She showed great enthusiasm for life.

【小题4】We can infer from the last paragraph that the shells         .

A.remind the author of her mom’s attitude towards life
B.make the author think of her mom’s death
C.were taken out of the drawer for the purpose of decorating the house
D.were hidden in a drawer because they are very precious

安徽省黄山市2019-2020学年高一下学期期末考试英语试题

3 .    Mexico and the USA share a common border on the northern side of Mexico. However, despite the close physical proximity(临近), there are a lot of differences between their social conduct.

Americans belong to diverse ethnic (种族) as well as national origins, despite which, all of them have mixed perfectly with the mainstream of American culture. Officially, six different races of people have been recognized by the government of the United States, which include White or European Americans, American Indians and Alaska Natives, Native Hawaiians and other Pacific Islanders, Black or African-Americans, Asians, and the people of two or more races. White Americans form the majority, constituting about 75% of the total population of America.

Mexicans are a group of multi-ethnic people. Mexico shelters people of different races, religions and tribes. When the country achieved independence from the Spanish colonizers (殖民者), the population included people of native pre-Columbian ancestry as well as Europeans, who came there through the process of colonization. The fusion of these two, particularly diverse ethnicities, led to the formation of the special multi-ethnic character of the Mexican people.

Americans tend to give a lot of importance to their profession, sometimes more than their family. Children are brought up in a more independent manner. Parents expect their children to set up their independence households once they start earning. Americans feel that the practical application of knowledge is very important. So, their way of acquiring knowledge is based more on reasoning, analysis, and in-depth specialization of a subject.

However, family comes first for Mexicans. In most Mexican families, men work to earn money, while women take care of the housework. Children are brought up with a lot of parental care and attention. Mexicans love to settle down in one place, and prefer to stay with their families. They consider titles and positions as their status symbols. They believe in education based on repeated learning and so, their academic system emphasizes learning through memorization.

Despite so many differences in their cultures, some sort of integration (结合) binds the Mexicans and the Americans, in a way, promotes their co-existence.

【小题1】Which of the following is true according to Paragraph 2?

A.American Indians and Alaska Natives are the largest ethnic group in the USA.
B.There are more Native Hawaiians and other Pacific Islanders than Asians in the USA.
C.American Indians have not been recognized by the US government.
D.European Americans make up about three fourths of the USA’s population.

【小题2】The underlined word “fusion” in Paragraph 3 means “        ”.

A.competition B.mix
C.comparison D.balance

【小题3】Which of the following might Americans agree with?

A.Truth comes from practice. B.Blood was thicker than water.
C.Rome was not built in a day. D.Every dog has its day.

【小题4】In Mexicans’ eyes, they           .

A.look at money as a status symbol B.usually receive an all-round education
C.enjoy the company of family D.husband and wife share the housework

安徽省黄山市2019-2020学年高一下学期期末考试英语试题

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题
1 . 关于下列物质的用途的说法错误的是

A.酚类化合物有毒,能用于杀菌消毒
B.乙二醇可用于配制汽车防冻液
C.烷烃的通式一定是CnH2n2,而烯烃的通式一定是CnH2n
D.甲醛的水溶液(福尔马林)可用于防腐

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

2 . 如图是四种常见有机物分子的比例模型示意图。下列说法正确的是( )
figure

A.甲是甲烷,甲烷的二氯取代产物只有一种结构
B.乙是乙烯,乙烯可与溴水发生取代反应使溴水褪色
C.丙是苯,苯结构比较稳定,不能发生氧化反应
D.丁是乙酸,一定条件下乙酸能跟乙醇发生酯化反应

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

3 . 下列说法中正确的是

A.同温同压下,H2(g)+Cl2(g)=2HCl(g)在光照和点燃的条件下ΔH不相同
B.化学反应中的能量变化都表现为热量变化
C.任何放热反应在常温下都能发生
D.化学反应的反应热可通过反应物的键能之和减去生成物的键能之和求得

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

4 . 下列有关说法正确的是(    )

A.向饱和硼酸溶液中滴加Na2CO3溶液,有CO2气体生成
B.将AlCl3固体溶解于盛有适量蒸馏水的烧杯中,再经转移、洗涤、定容和摇匀就可以在容量瓶中配制成一定浓度的AlCl3溶液
C.向2mL2%的CuSO4溶液中加A的0.5mL1%NaOH溶液,振荡后滴加几滴M溶液加热,未出现红色沉淀,不能说明M中不含醛基
D.过氧化钠是强氧化剂,能氧化二氧化碳,可以在呼吸面具中作为氧气的来源

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

5 . 下列说法正确的是

A.H2(g)的燃烧热△H=-285.8 kJ/mol,则2H2O(g)=2H2(g)+O2(g) △H=+571.6 kJ/mol
B.反应物的总能量低于生成物的总能量时,该反应为放热反应
C.由石墨比金刚石稳定可知:c(金刚石,s)=c(石墨,s) △H<0
D.已知:298K时,N2(g)+3H2(g) 2NH3(g)  △H=-92.0 kJ/mol。在相同温度下,向密闭容器中通入0.5 mol N2和1.5mol H2,达到平衡时放出46.0 kJ的热量

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

6 . 在容积为2L的密闭容器中发生反应xA(g)+yB(g)⇌zC(g)。图甲表示200℃时容器中A、B、C物质的量随时间的变化,图乙表示温度100℃和200℃平衡时C的体积分数随起始n(A):n(B)的变化关系.则下列结论正确的是(  )
figure

A.200℃时,反应从开始到平衡的平均速率v(B)=0.04 mol•L-1•min-1
B.200℃时,该反应的平衡常数为25 L2/mol2
C.当外界条件由200℃降温到100℃,原平衡一定被破坏,且正逆反应速率均增大
D.由图乙可知,反应xA(g)+yB(g)⇌zC(g)的△H<0,且a=2

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

7 . 常温下,0.1mol·L-1的H2A溶液中各种微粒浓度的对数值(lgc)与pH的关系如图所示。

下列说法不正确的是

A.H2A是二元弱酸
B.HAH++A2-的电离平衡常数Ka=10-12
C.0.1mol·L-1的H2A溶液中:c(H+)=c(HA)+2c(A2-)+c(OH)
D.pH=”4.2″ 时:c(HA)=c(A2-)>c(H+)>c(H2A)>c(OH

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

8 . 下列有关电解质溶液的说法正确的是(     )

A.向0.1 mol•L1CH3COOH溶液中加入少量水,溶液中c(H+)/c(CH3COOH)减小
B.将CH3COONa溶液从20℃升温至60℃,溶液中c(CH3COO)/[c(CH3COOH)·c(OH)]增大
C.向盐酸中加入氨水至中性,溶液中c(NH4+)/c(Cl)>1
D.pH=4.5的番茄汁中c(H+)是pH=6.5的牛奶中c(H+)的100倍

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

9 . 下图装置(Ⅰ)是一种可充电电池,装置(Ⅱ)为电解池。装置(Ⅰ)的离子交换膜只允许Na通过,已知电池充、放电的化学方程式为2Na2S2+NaBr3Na2S4+3NaBr,当闭合开关K时,X电极附近溶液变红。下列说法正确的是

A.闭合开关K时,Na从右到左通过离子交换膜
B.闭合开关K时,负极反应式为3NaBr-2e===NaBr3+2Na
C.闭合开关K时,当有0.1 mol Na通过离子交换膜时,X电极上放出标准状况下气体1.12 L
D.闭合开关K时,X电极反应式为2Cl-2e===Cl2

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

10 . 500 mL KNO3和Cu(NO3)2的混合溶液中c(NO3)=6.0 mol/L,用石墨作电极电解此溶液,当通电一段时间后,两极均收集到22.4 L气体(标准状况),假定电解后溶液体积仍为500 mL,下列说法正确的是(  )

A.原混合溶液中c(K)为2 mol/L B.上述电解过程中共转移2 mol电子
C.电解得到铜的物质的量为0.5 mol D.电解后溶液中c(H)为2 mol/L

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

11 . 下列说法正确的是

A.1 mol苯甲酸在浓H2SO4存在下与足量乙醇反应可得1 mol苯甲酸乙酯
B.对苯二甲酸()与乙二醇(HOCH2CH2OH)能通过加聚反应制取聚酯纤维()
C.分子式为C5H12O的醇,能在铜催化下被O2氧化为醛的同分异构体有4种
D.分子中的所有原子有可能共平面

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

12 . 科学家研制的一种使沙漠变绿洲的新技术,即在沙漠中喷洒一定量的聚丙烯酸酯与水的混合物,使其与沙粒结合,形成既能阻止地下的盐分上升,又能拦截、蓄积雨水的作用。下列对聚丙烯酸酯的叙述中正确的是(  )
①聚丙烯酸酯的单体的结构简式为CH2===CHCOOR
②聚丙烯酸酯没有固定的熔沸点
③聚丙烯酸酯能发生加成反应
④合成聚丙烯酸酯的反应属于缩聚反应

A.③④ B.①②
C.①②③ D.①②③④

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

13 . 某化学小组研究在其他条件不变时,改变密闭容器中某一条件对A2(g)+3B2(g)figure2AB3(g)化学平衡状态的影响,得到如图所示的曲线(图中T表示温度,n表示物质的量)。下列判断正确的是(   )
figure

A.图中T2一定大于T1
B.图中b点速率一定大于d点速率
C.达到平衡时,A2的转化率大小为c>b>a
D.加入催化剂可以使状态d变为状态b

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

14 . 二氯化砜(SO2Cl2)是一种重要的有机合成试剂,实验室可利用SO2与Cl2反应制取少量的SO2Cl2。装置如图(有些支持装置省略了)所示。已知SO2Cl2的熔点为-54.1℃,沸点为69. 1℃;常温下比较稳定,受热易分解,遇水能发生剧烈的水解反应,产物之一为氯化氢气体。

(1)仪器E的名称是_______,由B的使用可知SO2与氯气之间的反应居于______(填“放”或“吸”)热反应,B处反应管冷却水应从            (填“a”或“b”)接口通入。如果将丙装置放入冰水中,会更有利于二氯化砜的生成,其原因是          
(2)试剂X、Y的组合最好是_________。
a.98%硫酸和铜       b.稀硝酸和亚硫酸钠固体     c.60%硫酸和亚硫酸钾固体
(3)戊是贮气装置,则E中的试剂是_________;若缺少装置乙和丁,潮湿的氯气和二氧化硫之间发生反应的化学方程式是___________________________.
(4)取1.00g蒸馏后的液体,小心地完全溶于水,向所得的溶液中加入足量氯化钡溶液,测得生成沉淀的质量为1.50g,则所得馏分中二氯化砜的质量百分含量为           %(结果保留小数点后1位)。
(5)二氯化砜应储存于阴凉、干燥、通风良好的库房,但久置后微显黄色,其原因是      

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

15 . 氨是一种重要的化工原料。
Ⅰ、某学习小组同学设计了下图所示的实验装置(部分夹持仪器未画出),进行氨气实验室制备且探究氨气的还原性及产物的检验。
figure
实验现象为:黑色CuO变为红色;干燥管中无水CuSO4粉末变为蓝色;同时生成一种无色无味无污染的气体。
(1)请写出大试管中反应的化学方程式_______________________________________。
(2)请写出氨气与CuO反应的化学方程式_________________________________________。
(3)该装置存在明显缺陷,请指出存在的问题______________________。
Ⅱ、哈伯因为将氮气和氢气在一定条件下合成氨气的成果面获得1918年诺贝尔化学奖。现将1molN2和3molH2充入一恒容的密闭容器中,使其在一定条件下达到平衡N2+3H2figure2NH3,下列哪些状态一定是达到平衡的状态?(_____)

A.混合气体的平均相对分子质量不随时间改变而改变的状态
B.N2、H2、NH3的总物质的量不随时间改变而改变的状态
C.混合气体的密度不随时间改变而改变的状态
D.单位时间内0.1molNH3分解的同时,有0.05molN2生成的状态

Ⅲ、下图是一种电化学制备NH3的装置,图中陶瓷在高温时可以传输H+
figure
(1)H+经质子传输陶瓷由_____________流向_______________。(选填“a”或“b”)
(2)阴极发生的电极反应为_________________________________。

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题

16 . 含苯酚的工业废水的方案如下图所示:
说明: figure
回答下列问题:
(1)设备①进行的是________操作(填写操作名称),实验室这一步操作所用的仪器是_______。
(2)由设备②进入设备③的物质A是_____________。
(3)在设备③中发生反应的化学方程式为_____________________________。
(4)在设备④中,物质B的水溶液和CaO反应,产物是CaCO3、_________和水,再通过过滤得产物。
(5)上图中,能循环使用的物质是C6H6、CaO、NaOH水溶液、___________。
(6)写出同时满足下列条件的苯酚的一种同分异构体的结构简式是_________。
①核磁共振氢谱只有一个峰    
②分子中无碳碳双键

安徽省滁州市民办高中2019-2020学年高二下学期期末考试化学试题