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
Covid-19 has brought a great deal of trouble for all of us since March 2020. During this time, mobile phones have been the solution for the boredom and restlessness caused from staying indoors. The most downloaded apps on play store 2020 are;
TikTok
TikTok was the most downloaded app. With over 111.9 million downloads, TikTok has seen a huge growth in 2020, twice more than what it got in 2019. 20% of its total downloads were fromIndiaand around 9. 3% of the total downloads were in theUS.
Zoom
Zoom was the second most installed app in the overall downloads category. With nearly 94. 6 million installs, Zoom is the most used app for online meetings and virtual classrooms. 17% of its downloads were in theUSandIndia. Offices and educational institutes were shut down and to continue working and studying from home, people relied heavily on Zoom for video conferencing and calling.
WhatsApp ranked third in overall downloads with more than 100 million downloads. It is one of the most popular and widely used chat applications; WhatsApp also supports communication between international phone networks.
It ranked fourth in the overall downloaded list. Facebook is the world’s most popular social networking application. Facebook builds technologies that give people the power to connect with friends and family, find communities and grow businesses. 1. What do we know about TikTok? A. It is an India-based app. B. It has most users inAmerica. C. It is used for growing business.
D. It has doubled its download than in 2019.
2. Which app is the best to turn to for online education? A. TikTok. B. Zoom. C. WhatsApp. D. Facebook. 3. What function does Facebook probably serve?
A. Communication. B. Training. C. Teaching. D. Payment
B
In a study published in Nature Machine Intelligence, researchers at Ohio State University show how artificial intelligence（AI）can follow clinical trials to identify drugs for repurposing, a solution that can help advance innovative treatments.
Repurposing drugs is legal and not unusual. When doctors prescribe(开处方)drugs that have been approved by the Food and Drug Administration(FDA)for purposes different from what is printed on the labels, the drugs are being used “off-label” Just because a drug is FDA-approved for a specific type of disease does not prevent it from having possible benefits for other purposes.
For example, Metformin, a drug that is FDA-approved for treating type 2 diabetes, is also used to treat PCOS(a disease of women), and other diseases. Trazodone, an anti-depressant with FDA-approval to treat depression, is also prescribed by doctors to help treat patients with sleep issues.
The Ohio State University research team created an AI deep learning model for predicting treatment probability with patient data including the treatment, outcomes, and potential confounders(干扰因素).
Confounders are related to the exposure and outcome. For example, a connection is identified between music festivals and increases in skin rashes(红疹). Music festivals do not directly cause skin rashes. In this case, one possible confounding factor between the two may be outdoor heat, as music festivals tend to run outdoors when the temperature is high, and heat is a known cause for rashes. When working with real-world data, confounders could number in the thousands. AI deep learning is well-suited to find patterns in the complexity of potentially thousands of confounders.
The researcher team used confounders including population data and co-prescribed drugs. With this proof-of-concept, now clinicians have a powerful AI tool to rapidly discover new treatments by repurposing existing medications.
4. What do we know about a drug used off-label? A. It is sold without a label. B. It is available at a low price.
C. Its uses extend beyond the original ones. D. Its clinical trials are rejected by doctors.
5. Metformin and Trazodone are similar as both of them________. A. are used off-label B. treat rare diseases C. result in sleep issues D. are medical breakthroughs
6. What can be inferred about “confounders”? A. They are possible treatments. B. They are environmental factors.
C. They can be easily recognized in real-world data. D. They should be taken into serious consideration. 7. What is the main idea of the text? A. AI examines benefits of existing drugs. B. AI identifies off-label uses for drugs. C. AI finds new drugs for common diseases. D. AI proves the power of drug research.
C
A male tiger was rescued in Mishan city, Northeast China's Heilongjiang province, on Friday. A tiger was recently seen on the Siner Russian border（边界），but there is no evidence to suggest this is the same tiger or that it had lost its way from Russia.
Wherever it may have come from, cross-border protection of endangered species is a problem. According to Ma Jianzhang, a senior wild animal researcher in China, tigers know no borders, which have been built to stop humans from illegally crossing over. However, these borders also stop the free movement of tigers, thus preventing their breeding（繁殖）and exchange of genes.
The Sino-Russian border alsocomes in the way ofprotecting tigers in the region. Data show about 500 to 550 Siberian tigers, or over 90 percent of the species, live in the wild in Russia; 27 live in the wild in China, and 50 inthe border region. Sometimes tigers lose their way across the border and that is hindering（妨碍）efforts to stop illegal hunting and protecting them.
Fortunately, both China and Russia have realized this problem and are working toward solving it. As early as
2010, the two countries established a cross-border protection network aimed at strengthening communication on protecting tigers in the northeast. The countries have also held anti-poaching（反偷猎）activities together. In 2019, two national parks from the two countries signed a three-year deal to share research data on tigers, greatly improving the living conditions of Siberian tigers in the wild.
However, much more needs to be done to protect the species. It is necessary to combine the tiger protection areas in the two countries. That will require greater efforts from both sides and some difficulties might remain even then. Fortunately, both countries have been taking effective measures to provide the endangered species a better home.
8. What's the original purpose of setting up the Sino-Russian borders? A. To ban people from illegal crossings. B. To help protect tigers in the region. C. To protect tigers from losing their way. D. To stop tigers' breeding and exchange of genes.
9. What does the underlined phrase “comes in the way of” probably mean?
A. keeps from. B. is on the way to C. is aimed at D. keeps up 10. What is the focus of Paragraph 4 ? A. Recent studies and researches on tigers. B. Joint efforts by China and Russia to protect tigers. C. The possible effects of establishing a network D. Reasons for improving the living conditions of tigers. 11. What's the author's purpose in writing the text? A. To inform the possible dangers of tiger protection. B. To cover the news about a missing tiger on the border. C. To put forward suggestions on finding the missing tiger.
D. To report the problems and measures of cross-border tiger protection.
D
Bob, a Burroughs junior high school football player, always had his mom cheering him on. He didn’t play exciting positions. He played as a linebacker(中后卫球员). Sadly, he often found himself at the bottom of the piles, where everyone would jump onto each other at the end of every play. Bob's mom realized it was hard for her son to hear her cheering. She hadto find a solution, but couldn't find one.
Then one day the coach from the school team asked him if he wanted to join the team. Bob wasecstatic, because he was only a ninth grader. His mom was also excited, since she loved football and especially loved watching her son play. She kept considering a way for him to hear her. A cowbell! That was it. Now from the bottom of the piles Bob would hear his mom shaking her cowbell crazily, knowing she was there for him.
Bob's team finally made it to the state championship game. What exciting time to play at Busch Stadium under the lights! This experience made Bob appreciate all the years that his mom had sacrificed everything to get him to practice every day, to wash his uniforms, and to never miss a game. He had to do something.
On the night of the state championship game, the loudspeakers introduced Bob, and as he walked onto the field his mom shook the cowbell, hard. However, it didn’t sound right. She looked its inside, and found a note saying,”Thank you, Mom.” Bob had left her a note expressing his appreciation for always being with him, filling her heart with warmth.
Finally Burroughs claimed the title of State Champion. While others were cheering and admiring the state championship cup, Bob' s mom clutched(紧握) her cowbell happily.
Years later, Bob’s mom died. While digging through her belongings, he found the cowbell with the note. Bob took it to his mom's funeral and rang it, whispering, \"Thank you, Mom.” 12. What does the underlined word \"ecstatic” mean in Paragraph 2? A. Curious B. Disappointed C. Anxious D. Delighted 13. Why did Bob's mom want to get a cowbell? A. To amuse her cow. B. To teach her cow C. To attract his attention. D. To make him hear her 14. What can be learned from Paragraph 3? A. Bob's mom devoted much time to him B. Bob was the best player in his team C. Bob owed his success to his coach D. Bob's mom was a football player at college 15. Why didn’t the cowbell sound as usual that night? A. The mother was very weak. B. Bob had put a note inside the bell. C. The weather became terrible suddenly
D. The bell had been broken deliberates.
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
Tips for taking care of friendships
Some people are meant to come and go from your lives quickly. Other friends may grow with you as your life changes. One way to keep friendships of any level strong is to take good care of them. Send handwritten notes
Just find a note card, write something by hand, and then mail it.___16___Since electronic communication is becoming popular these days, a handwritten note can really make an impression. Be active in contacting friends
Many people call up friends only when they need something. The problem with this is it makes it look as if you don’t really care about your friend.___17___Regularly check in with your friends so they know you are sincere. Call up friends
Electronic communication is great, but there is nothing like hearing your friend’s voice to give you a lift. Make a point to call up friends and check in with them.___18___. Just a few minutes every month can make a difference in your friendship. Give meaningful gifts
Put some thought into the gifts you give a friend.___19___. In fact, often the smallest but most thoughtful ones are the biggest hit.
___20___
People who argue from time to time actually have healthier friendships than those who never discuss their points of conflict（冲突）. Learn how to argue in a healthy way and work through the issues in your friendship. A. Talk things out
B. Get together with friends
C. The phone calls don’t have to belong
D. The presents don’t have to be large or expensive E. This will really stand out in your friend’s mailbox
F. Discuss your issues with the goal of making your relationship healthier G. Remember to call up friends or send an email to see how they are doing
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
Mary and her husband had a dog named “Lucky”. Whenever their friends came for a weekend visit, they would warn them notto leave the___21___open because Lucky would___22___whatever he likes. However, someone would forget and something would come up___23___. Mary or Jim would go to Lucky’s toy box in the___24___. There the___25___would be, among Lucky’s other toys.
It happened that Mary found out that she had cancer. Something told her she was going to___26___. The night before she was to go to the hospital, a thought___27___her that she had to leave Lucky. The thought made her___28___than thinking of her own death.
___29___the day came for Mary to leave the hospital. When she arrived home, Mary was so____30____that she couldn’t even go to her bedroom. Jim left her to____31____on the sofa. When Mary woke up, she couldn’t understand what was wrong. She couldn’t____32____her head and her body. But panic soon gave way to____33____when Mary realized the problem. She was____34____with some toys! While she had slept, the sorrowing dog had made trip after trip to the basement____35____his beloved hostess all his favorite things in life. He had covered her with his____36____.
Mary forgot about dying.____37____she and Lucky began living again,____38____further and further together every day. It’s been 12 years now and Mary is still____39____. Lucky still steals treasures and hides them in his toy box and Mary remains his greatest treasure.
Never forget the people who make a(n)____40____in our lives are the ones that care for us. If you see someone without a smile today, give them one! Live simply. Love seriously! 21. A. box B. luggage C. wallet D. door 22. A. steal B. swallow C. play D. protect 23. A. broken B. dirty C. missing D. present 24. A. bedroom B. kitchen C. yard D. basement 25. A. treasure B. food C. gift D. blanket 26. A. recover B. die C. survive D. suffer
27. A. defeated B. prevented C. struck D. influenced 28. A. prouder B. happier C. angrier D. sadder 29. A. Finally B. Gradually C. Particularly D. Normally 30. A. excited B. sad C. tired D. frightened
31. A. rest B. sleep C. wait D. calm 32. A. move B. control C. feel D. shake
33. A. anger B. disappointment C. excitement D. laughter 34. A. surrounded B. covered C. provided D. moved 35. A. returning B. hiding C. bringing D. taking 36. A. life B. love C. joy D. sadness
37. A. Instead B. Therefore C. Meanwhile D. Thus 38. A. living B. walking C. rushing D. studying 39. A. weak B. humorous C. healthy D. hopeful 40. A. difference B. agreement C. promise D. decision 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
Located in a natural depression in Guizhou, China’s Five-hundred-meter Aperture Spherical Radio Telescope, ___41.___(know) as FAST, has identified six pulsars (脉冲星) after one year of trial operation. It is the first time Chinese scientists have discovered pulsars using a radio telescope independently developed by Chinese scientists, thus___42.___(open) a “new era of Chinese original space discovery.”
It is truly encouraging for China to have achieved such results in just one year. Since the first pulsar___43.___(discover), over 2,700 pulsars have been identified. But almost all of them are___44.___the scope of the Milky Way. Being the world’s largest radio telescope, FAST is expected to capture pulsars outside the galaxy. Apart from the massive size, it also has unmatched accuracy and sensitivity, allowing scientists___45.___(find) previously hidden stars. Moreover, FAST is capable of surveying the night sky for multiple___46.___(science) data at once,___47.___enables astronomers to jump-start many science goals. Its innovative engineering concept and design pave___48.___new road to realize a huge single dish in the most effective way.
China’s FAST science impact on astronomy will be extraordinary, and has the potential to revolutionize other___49.___(area) of the natural sciences. It___50.___(remain) the global leader for the next 10 to 20 years. 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.改错(共10小题,每小题1分，满分10分) 注意：每处错误及其修改均仅限一词。
增加：在缺词处加一个漏字符号(∧),并在此符号下面写出该加的词。 删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线,并在该词下面写出修改后的词。 Dear Anish,
Here are the information about Manchester University. It is about 200 miles of London and it has the very big schoolyard. You can live in the school or near the school. They have all sorts of course. I’m sure you will find one you like it. I know you are particular interested in human rights, so I will see that there is anything on their website. I will send my friend Charlie meet you at the airport when you arrived. You met him a few years ago, but he’s changing a lot since then. Don’t worry. He can recognize you.
Both your aunt and I look forward to seeing you again.
Yours, James
第二节书面表达（满分25分）
52.阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。
When Farrel was young, he had a Rat Terrier (捕鼠犬). He named it RK, short for Rat Killer. The following is how he came across the dog and adopted it.
That was sometime in the 1930s. He worked in the booth with the projectionist (电影放映员). He liked to see the theater from booth. At that time, people usually took a short break between reel (胶卷) changes. Farrel would take this chance to look at the theater audience. The people were usually talking or making a trip to the bathroom during the breaks. The lights were on, but turned down low. Farrel saw something that shocked him at this time. He actually saw 3 huge rats. They crossed the room and went under the seats. Then the movie was over, and he had to stay behind and clean up. That night he stayed in the projection room and watched from above. He saw several rats running around below. They were so huge that he could see them clearly from above. But when the lights were turned up brighter, the rats all disappeared.
He told the manager what he saw. The manager said that he knew about the rats. But he couldn't use poisons in the theater to get rid of them. So, Farrel suggested introducing some cats to the theater at night. The manager agreed to it and asked Farrel to find the cats. And he also asked Farrel to remove the cats in the morning and any dead rats that might be around.
Farrel found 4 large cats and took them to the theater. The cats were first kept in cages. Farrel thought they were ready for their duties as night “watchmen”. When the movie was over, Farrel opened the cage and released the new “night guards”. He left and headed home with a little excitement running through his mind. He couldn't help thinking about how many dead rats he would find the next morning.
注意：
1．续写的词数应为150左右；
2．请按如下格式在答题卡的相应位置作答。
The next morning, Farrel opened the front door of the theater, and to his surprise, all 4 cats shot out of the door and down to the street.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Later that day, Farrel's dad persuaded him to borrow a Rat Terrier from the local dog pound (流浪狗收留所). ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
1. D 2. B 3. A
4. C 5. A 6. D 7. B
8. A 9. A 10. B 11. D
12. D 13. D 14. A 15. B
16. E 17. G 18. C 19. D 20. A
21. B 22. A 23. C 24. D 25. A 26. B 27. C 28. D 29. A 30. C 31. B 32. A 33. D 34. B 35. C 36. B 37. A 38. B 39. C 40. A 41. known 42. opening
43. was discovered 44. in/ within 45. to find 46. scientific
47. which 48. a
49. areas 50. will remain
文章报道了中国科学家第一次使用自主研发的射电望远镜发现确定了六颗脉冲星。
51.(1).are→is (2). of→from (3).the→a (4).course→courses (5).去掉it
(6).particular→particularly (7).that→if/whether (8).meet前加to (9).arrived→arrive (10).changing→changed
52.略
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