2021年安徽省六安第一中学高三英语上学期期中考试试题及答案解析

2021年安徽省六安第一中学高三英语上学期期中考试试题及答案解析第一部分阅读（共两节，满分40分）
第一节（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项
A
Sahara Marathon 2021-Around the World
The Sahara Marathon is organized by the Saharawi Ministry of Youth and Sports and a group of volunteers from different countries. During the last twenty years, thousands of runners from all continents have traveled to the Algerian desert to live the experience provided by this race and to bond with refugee families. In this unique edition of 2021, the experience will be different. The race will be held in a virtual way and the donations collected through the event will go to the most needy families in the Saharawi Camps of Tindouf.
Rules of the 2021 Sahara Marathon
Participation
All those people over 16 years of age (16 included) may take part in this virtual competition, as long as they are correctly registered, both in time and in form. The registered runner must download the Official Sahara Marathon APP to take the race.
Distance and Travel
The distance options selectable in the APP are: 5k, 10k, 21k and 42k. As it is a virtual test, it is very important to make sure that the chosen route allows good mobile coverage for the correct functioning of the GPS. Registration
Registration has a cost of 15 euros, which includes participation in the race and a donation of 5 euros to refugee families. Participants can, if they choose, purchase the official pack of the test (T-shirt, scar, and bib) for the price of 25 euros.
Acceptance
Registration is personal and non-transferable and implies acceptance of these regulations. Runners who are not registered or run without the APP will not be admitted.
1. What can we learn about the 2021 Sahara Marathon?
A. It is a big family event.
B. It provides a virtual tour.
C. It raises money for charity.
D. It will be held in the desert.
2. How much should a runner pay if he wants to register for the race?
A. 15 euros.
B. 20 euros.
C. 25 euros.
D. 40 euros.
3. What are runners required to do in the race?
A. Choose safe routes.
B. Wear casual clothes.
C. Run with the official app.
D. Transfer registration in time.
B
Bill Gates on how to fight future pandemics
WHEN HISTORIANS write the book on the covid-19 pandemic, what we've lived through so far will probably take up only the first third or so.The bulk of the story will be what happens next.
I believe that humanity will beat this pandemic, but only when most of the population is vaccinated(接种疫苗）.Until then, life will not return to normal.
As the pandemic slows in developed nations,itwill accelerate in developing ones.Their experience,however,will be worse.In poorer countries,where fewer jobs can be done remotely,distancing measures won't work as well.The virus will spread quickly,and health systems won't be able to care for the infected.
Wealthy nations can help.But people in rich and poor places alike will be safe only once we have an effective medical solution for this virus,which means a vaccine.
My hope is that,by the second half of 2021,facilities around the world will be manufacturing a vaccine.If that's the case,it will be a history-making achievement: the fastest humankind has ever gone from recognizing a new disease to immunizing（免疫）against it.
Apart from this progress in vaccines,two other big medical breakthroughs will emerge from the pandemic.One will be in the field of diagnostics.The next time a novel virus crops up,people will probably be able to test for it at home.Researchers could have such a test ready within a few months of identifying a new disease.
The third breakthrough will be in antiviral drugs.We haven't been as effective at developing drugs to fight viruses as we have those to fight bacteria.But that will Researchers will develop large diverse libraries of antivirals,which they'll be able to scan trough and quickly find effective treatments for novel viruses.
All three technologies will prepare us for the next pandemic by allowing us to intervene(干预）early when the number of cases is still very low.
Our progress won't be in science alone.It will also be in our ability to make sure everyone benefits from that science.In the years after 2021,I think we'll learn from the years after 1945. With the end of the Second World War, leaders built international institutions like the UN to prevent more conflicts.After covid-19, leaders will prepare
institutions to prevent the next pandemic.
These will be a mix of national,regional and global organizations.I expect they will participate in regular"germ games”in the same way as armed forces take part in War games.These will keep us ready for the next time a novel virus jumps from bats or birds to humans.
I hope wealthy nations include poorer ones in these preparations,especially by devoting more foreign aid to building up their primary health-care systems.This pandemic has shown us that viruses don't obey border laws and that we are all connected biologically by a network of microscopic germs,whether we like it or not.
The best analogy(类比）for today might be November 10th 1942.Britainhad just won its first land victory of the war,and Winston Churchill declared in a speech: “This is not the end.It is not even the beginning of the end.But it is,perhaps,the end of the beginning.”
4. What are the three technologies that will prepare us for the next pandemic?
①manufacturing a vaccine fast
②diagnosing a virus at home
③developing antiviral drugs
④allowing us to intervene early
A. ①②③
B. ①②④
C. ①③④
D. ②③④
5. As far as poorer countries areconcerned,which of the following is TRUE according to this passage?
A. pandemic disease is more likely to begin in poorer countries
B. Working from home can work well in poorer countries.
C. Health systems are sufficient to care for the infected in poorer countries.
D. Virus will cross borders if poorer countries fail to contain it.
6. Why is the Second World War mentioned in Para.8?
A. The fight against the COVID-19 is similar to the Second World War.
B. People are suffering just as they were in the Second World War.
C. We should cooperate globally just as we did after the Second World War.
D. Countries are fighting each other like in the Second World War.
7. What is the tone of this passage?
A. pessimistic
B. optimistic
C. neutral
D. indifferent
C
This year researchers expect the world to snap 1.35 trillion photographs, or about 3.7 billion per day. All those pixels (像素) take up a lot of room if they are stored on personal computers or s phones, which is one reason why many people store their images in the cloud. But unlike a hard on drive which can be encrypted to protect its data, cloud storage users have to trust that a tech platform will keep their private pictures safe. Now a team of Columbia University computer scientists has developed a tool to encrypt (加密) images stored on many popular cloud services while allowing authorized users to browse and display their photographs as usual.
Malicious (恶意的) attempts to access or leak cloud-based photographs can expose personal information. In November 2019, for example, a bug in the popular photograph storage app Google Photos mistakenly shared some users' private videos with strangers. Security experts also worry about employees at cloud storage companies on purpose accessing users' images.
So the Columbia researchers came up with a system called Easy Secure Photos (ESP), which they presented at a recent conference. “We wanted to see if we could make it possible to encrypt data while using existing services,” says computer scientist Jason Nieh, one of the developers of ESP. “Everyone wants to stay with Google Photos and not have to register on a new encrypted-image cloud storage service.”
To overcome this problem, they created a tool that preserves blocks of pixels but moves them around to effectively hide the photograph. First, ESP's algorithm (算法) divides a photograph into three separate files, each one containing the image's red, green or blue color1 data. Then the system hides the pixel blocks around among these three files (allowing a block from the red file, for instance, to hide out in the green or blue ones). But the program does nothing within the pixel blocks, where all the image processing happens. As a result, the files remain unchanged images but end up looking like grainy black-and-white ones to anyone who accesses them without the decryption (解密) key.
8. What's probably the main purpose for people to store images in the cloud?
A. To save storage room.
B. To make photos beautiful.
C. To try a new storage way.
D. To keep their privacy safe.
9. Why might employees in cloud storage companies be distrusted by experts?
A. They sell users' passwords.
B. They have invented new tools.
C. They often let out personal information.
D. They may steal a glance at users' images.
10. What's the advantage of ESP?
A. It can provide clear images.
B. It can decrease the upload time.
C. It can classify images automatically.
D. It can encrypt data on the original platform.
11. What does paragraph 4 mainly talk about?
A. Method of decryption.
B. Image-processing technique.
C. Separate files of images.
D. Data analysisof color1 s.
D
When Jennifer Doudna was in sixth grade, she came home one day to find that her dad had lefta book titled The Double Helix on her bed. She put it aside, thinking it was one of those detective tales she loved.
On a rainy Saturday, she picked up the book. As she sped through the pages, she became fascinated by the drama, which encouraged her to explore nature's wonders. Even though her high school teacher told her that girls didn't become scientists, she decided she would.
She worked with a biologist, Charpentier, to turn a curiosity of nature into an invention—an easy-to-use tool that can edit DNA. Known as Crispr, the tool will transform the human race. James Watson, the author of The Double Helix, later told her it was the most important biological advance: since he and Francis Crick discovered the structure of DNA.
For this achievement, Doudna and Charpentier were awarded the Nobel Prize in Chemistry in 2020. Until now, only five women, beginning with Marie Curie in 1911, had won or shared the Nobel for Chemistry out of 184 award winners. When this year's prize was announced, Dr. Charpentier said it would provide a message specifically to young girls who would like to follow the path of science and to show them that women can also be awarded prizes.
A few decades from now, if it becomes possible and sate to edit DNA, should we allow parents to improve the IQ and physical strength of their kids? Should we let them decide eye color1 ? Skin color1 ? Height? After helping to discover Crispr, Dr. Doudna has become a leader in considering these moral issues. That's the main message we should take from this Nobel: New technologies can be a huge benefit to the human race, but in order to make sure they are used wisely, it's important for people to understand them.
12. Jennifer Doudna decided to become a scientist because,__________
A. her father pushed her
B. a book inspired her
C. her teacher encouraged her
D. James Watson motivated her
13. Dr. Doudna was awarded the Nobel Prize because,__________.
A. she wrote the book “The Double Helix"
B. she discovered the structure of DNA
C. she is a hardworking woman scientist
D. she helped invent a tool for editing DNA
14. According to passage, which of the following is NOT true?
A. The two women's success will inspire more girls to be devoted to science.
B. Since 1911, there have been 184 people who won the Nobel for chemistry.
C. If girls follow the path of science, they will surely achieve their goals.
D. Crispr will make a big difference to the human race.
15. Which words can best describe Jennifer Doudna?
A. Determined and responsible.
B. Ambitious and humorous.
C. Cruel and indifferent.
D. Fearless and stubborn.
第二节（共5小题；每小题2分，满分10分）
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

选项中有两项为多余选项There’s no doubt that when it comes to friendships, you want positive people in your life and not negative ones.___16___
Support when you need it.
___17___They will be there for you without asking. In most cases, they will go out of their way to help you when you’re in trouble.
Health benefits of being positive.
The more positive friends you have, the better you will be at remaining optimistic yourself. As we all know, there are many benefits of being optimistic.____18____Health benefits may include lower rates of depression, a greater ability to throw off colds, and a reduced risk of developing disease.
Bring out the best in you.
Your positive friends will inspire you to be the best you can be.____19____With positive people in your life, you’ll be willing to share your goals with your friends because your friends will give you the emotional push you need to go after what you want in life.
___20___
You naturally attract the kind of friends who are most like you. So if you’re a downer, you'll probably find that negative people flock to you. The same is true for being positive. The more you are able to maintain a positive
attitude, the more like-minded people you’ll attract in return.
A. For example, it helps people to deal with stress and illness better.
B. Surround yourself with positive friends
C. Attract more positive friends.
D. With positive friends, you don’t need to beg for help when you need it.
E. Here are some benefits of spending time with positive friends.
F. This means trying new things, achieving goals, and having the kind of life you dreamed of for yourself.
G. Most of the time, you have to ask them to help you when in trouble.
第二部分语言运用（共两节，满分45分）
第一节（共20小题；每小题1.5分，满分30分）
阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项Information of the patient was checked. The shadow less lamp was on. All supplies needed for the operation were___21___. This was a typical___22___of a surgery. However, there was one more___23___--- a piano. It was the first time ever in the world that a piano had___24___the operating room. My 15 colleagues and I were operating on a 10-year-old patient.
Occupying a comer of the room, the grand piano was performed by Emiliano, a musician. To the___25___background of a piano played___26___, we performed the surgery to remove a tumor(肿瘤) from the boy’s stomach. Everything went well. There was no complication. A magical atmosphere of complete___27___was brought into the operating room. When___28___medical supplies among the staff, I could totally___29___the peace. Even more____30____, in smooth music, we____31____better, as if our minds were connected by the____32____.
Although the boy was____33____during the four-hour operation, at times we did notice the comers of his____34____curved(弯曲) up. Somehow, even under total anesthesia(麻醉)，he could feel the joy of music. When the notes were____35____, monitors showed a sudden change in his brain activity pattern. I prayed the music could____36____the skinny body of anxiety and pain.
The surgery was____37____. Our little patient was doing well. My team described the process as____38____and moving. When asked about the____39____, our brave little patient said, “I’m fine. Did I hear the music? Yes, I heard it.”
In years to come, a surgery room might____40____a piano or other facility of this kind.
21. A. in place B. in demand C. in use D. in silence
22. A. schedule B. principle C. custom D. routine
23. A. mission B. labour C. role D. facility
24. A. entered B. included C. approached D. spared
25. A. exciting B. soft C. loud D. complex
26. A. live B. fair C. hard D. tight
27. A. tension B. liberty C. recognition D. harmony
28. A. operating B. passing C. storing D. lending
29. A. establish B. reserve C. sense D. value
30. A. magically B. briefly C. typically D. unfortunately
31. A. thought B. remained C. cooperated D. explored
32. A. signs B. notes C. words D. strings
33. A. alive B. awake C. asleep D. alike
34. A. stomach B. mouth C. body D. mind
35. A. made B. cancelled C. interrupted D. released
36. A. warn B. remind C. inform D. relieve
37. A. challenged B. affected C. dominated D. completed
38. A. natural B. amazing C. genuine D. impossible
39. A. experience B. expression C. performance D. proposal
40. A. compose B. support C. feature D. inspire
第二节（共10小题；每小题1.5分，满分15分）
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式
One day a man was asked to paint a boat by an owner of boat . He began to paint the boat a bright red as required .
While painting , he realized there was a hole in the hull and decided to repair____41.____. When he finished____42.____（paint）, he received his money and left .
Several days later , the owner came to the painter and presented him____43.____a nice check , much____44.____（high）than the payment for painting . The painter was surprised , “You’ve already paid me for painting the boat which is a small____45.____（serve）.”“But this is not for the paint job . It’s for having____46.____（repair）the hole in the boat . ”he said ,“My dear friend , let me tell you____47.____happened . When I asked you to paint the boat , I forgot____48.____（mention）about the hole . When the boat dried , my kids took the boat and went on____49.____fishing trip when I was not at home . When I returned and noticed
they had taken the boat , I was desperate . Imagine my relief and joy when I saw them returning from fishing . Then , I examined the boat and found that you had repaired the hole ! You saved the lives of my____50.____（child）! I do not have enough money to pay your ‘small’good deed.”
第四部分写作（共两节，满分40分）
第一节短文改错（满分10分）
51.假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。

文中共有10处语言错误，每句中最多有两处。

每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词.
注意：1.每处错误及其修改均仅限一词；
只允许修改10处，多者（从第11处起）不计分。

Last year I went to seaside to spend my summer holiday with my family. We stay there for about two weeks. The weather was much more hotter than that in my hometown, but I got used to it. Every morning, I got up early but went for a breakfast ahead of time. Then I went to the beach and talked with John, that was my new friend and I came across him in my first morning there. John was warm-hearted and she seemed to be very familiarly with the seaside village. Soon we became very good friend. We have kept write to each other ever since then.
第二节书面表达（满分25分）
52.假定你是李华，在英国伦敦游学期间因身体不适需要就医。

你的房东Smith夫妇介绍你前往他们的私人医生Mr．Brown的诊所就诊。

请你通过电子邮件预约就医。

邮件内容包括：
1．自我介绍；2．症状描述；3．预约时间。

注意：
1．词数100左右；2．可以适当增加细节，以使行文连贯；3．邮件开头和结尾已为你写好，不计入总词数．
Dear Mr．Brown，
_____________________________________________________________________________________________ _____________________________________________________________________________________________ ___________________________________________________________
Sincerely yours，
Li Hua
参考答案
1. C
2. A
3. C
4. A
5. D
6. C
7. B
8. A 9. D 10. D 11. B
12. B 13. D 14. C 15. A
16. E 17. D 18. A 19. F 20. C
21. A 22. D 23. D 24. A 25. B 26. A 27. D 28. B 29. C 30. A 31. C 32.
B 33.
C 34. B 35. C 36.
D 37. D 38. B 39. A 40. C
41. it 42. painting
43. with. 44. higher
45. service
46. repaired
47. what 48. to mention
49. a. 50. children
51.(1).seaside前添the
(2).stay→stayed
(3).more去掉
(4).went前but→and
(5).that→who
(6).in→on
(7).she→he
(8).familiarly→familiar
(9).friend→friends
(10).write→writing
52.略。