1、海淀区2021届高三第一学期期中考试英语试卷2020.11本试卷共10页，100分。考试时长90分钟。考生务必将答案答在答题纸上，在试卷上作答无效。考试结束后，将本试卷和答题纸一并交回。第一部分：知识运用（共两节，25分）第一节 完形填空（共10小题；每小题1分，共10分）阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题纸上将该项涂黑。Lesson PlanIt was just an ordinary day. There was the usual 1 as the children greeted each other. I looked over
2、my plan book and I never felt better. It would be a good day and we would 2 a lot. After we settled in for our reading class, I started to check their workbooks.When I came to Troy, he had his head down as he showed his unfinished 3 in front of me. He tried to pull himself back out of my sight as he
3、 sat on my right-hand side. 4,I looked at the incomplete work and said, “Troy, this is not finished.He looked up at me with the most pleading eyes I have seen in a child and said, “I couldnt do it last night because my mother is dying. The sobs that followed 5 the entire class. How 6 I was that he w
4、as sitting next to me. I took him in my arms and his head rested against my chest. His sobs echoed through the room and tears flowed. The children sat with tear-filled eyes in dead silence. Only Troys sobs broke the stillness of that morning class. One child 7 for the tissue box while I just pressed
5、 his little body closer to my heart.What do I do for a child who is losing his mother? Choking back my tears, I said to the group, Lets pray for the recovery of his mother. And everyone did so.After some time, Troy looked up at me and said, I think I will be okay now. He had exhausted his supply of
6、tears; he released the 8 in his heart. Later that afternoon, Troys mother died.When I went to the funeral(葬礼），Troy rushed to greet me. He fell into my arms and just rested there awhile. He seemed to gain strength and courage, and then he led me to the coffin. There he was able to look into the face
7、of his mother, to face 9 even though he might never be able to understand the mystery of it.That night I went to bed feeling lucky for the good sense lo 10 my reading plan and to hold the broken heart of a child in my own heart.1. A. EmbarrassmentB. excitementC. astonishmentD. disappointment2. A. ac
8、complishB. demandC. missD. recall3. A. experimentB. assignmentC. documentD. argument4. A. GraduallyB. HopefullyC. AccidentallyD. Naturally5. A. frightenedB. annoyedC. shockedD. impressed6. A. gladB. surprisedC. proudD. curious7. A. wishedB. racedC. preparedD. waited8. A. desireB. powerC. burdenD. gu
9、ilt9. A. difficultyB. failureC. deathD. sorrow10. A. carry outB. carry onC. set upD. set aside第二节 语法填空（共10小题；每小题1.5分，共15分）阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。ABulletproof coffee 11)_(invent) in 2011 by Dave Asprey, an American businessman. He came up with the idea after vis
10、iting Tibet in 2004. Asprey noticed that people there were drinking their teas with yak butter. 12 _Asprey tried a cup, he felt really good. So when he got back home, Asprey tried making his own recipe by adding grass-fed butter and coconut oil to his coffee. He discovered that it gave him energy an
11、d even helped him lose weight. Plus, it tasted pretty good. So, he decided to share his recipe 13_ the world.BDouban is a Chinese social networking platform whose users are mostly young people. Recently, a Douban discussion group 14_(name) “985 Loser Introduction Plan became popular, causing a heate
12、d discussion. Most of the group members are students or graduates from top universities in China, but they consider 15_(they) as losers for various reasons. By writing down their own life stories, they share their 16_（suffer) and aim to improve their situations by learning from each other s experien
13、ces.CKeeping a travel journal is one of the best 17_(way) to keep the memory of a trip alive. Going back and reading your own words 18_(describe) a day in a foreign country makes you realize how easy it is to forget little details. For people who are not used to writing on a daily basis, keeping a t
14、ravel journal doesnt have to be hard. It 19_(require) only a small effort. I usually spare 15 to 20 minutes at night before going to sleep,20_forces me to be concise (简洁的） and efficient.第二部分：阅读理解（共两节，40分）第一节（共15小题；每小题2分，共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，并在答题纸上将该项涂黑。AAt age 12,Keegan Sobilo of Ne
15、w Baltimore carefully tucks his legs and arms into a fire suit, pulls on a helmet and climbs into a race car that exceeds 80 mph. He has been doing this since age 8.“ At first, I was scared to death. I was like, Lets do bowling or swimming. Its still very scary. But he knows what hes doing. Your hea
16、rt goes out on that track every time he goes out there, said his mother Hillary Sobilo.The sixth-grader always wears pajamas to the track every night and takes them off when he puts his race clothes on. Hes been doing that for the last four years. Thats his trademark,” said Tim Phillips, his crew ch
17、ief. The first time he wore his train pajamas to the track, Keegan went from last place to ninth place. He decided they brought luck. Since then, he has won a series of championships.Passion for cars runs in the family. Keegans father is a design mechanic at Fiat Chrysler Automobiles. He knows what
18、it means to have seats and roll cages built to fit his sons body. What I see in Keegan is passion, like how I feel about car restoration. But for him, everything has to align itself. I tell my son you have to be the perfect package. Winning races every weekend is not the only key. More importantly,
19、you have to have the right name, you have to look the correct way, speak the correct way, and act the correct way. Then the rest of it is really luck, like the stock market. If you dont put yourself out there, youll never hit it big.While Keegans classmates play basketball and volleyball, Keegan is
20、at the Birch Run track-practicing, qualifying and racing until 10 p.m. or 2 a.m. While many children spend time playing video games, Keegan runs race simulation training with his joystick after school.The kid is cool. It was like having a grandson. We showed respect to each other. And he takes it ve
21、ry seriously, said competitor Mike Todd,69,of Galesburg, Michigan. Hes an older soul in a young mans body. Id like to see him make it big. Hes got the willpower.21. Keegan enjoys _A. swimmingB. racing carsC. bowlingD. playing games22. According to the passage., what does Keegans father value most?A.
22、 Victory.B. Safety.C. Good qualities.D. Real luck.23.It can be learned from the passage thatA. Keegan spends a lot of time practicingB. the train pajamas bring Keegan successC.Keegans mother worries about his studiesD. Keegan picked up the hobby at the age of 4BYoure never too young to make an impac
23、t on your community.Members of Gen Z are exceptionally creative, cause-oriented, and hyper-aware of the world around them, making them perfectly ready to help handle the worlds problems through volunteering.If you want to make a difference in your community, be a part of something bigger than yourse
24、lf, or just need to earn some required volunteer hours, then this is the place to start. Here are a few organizations of Gen Z with volunteer opportunities for teens!Habitat for HumanityEveryone deserves to have a place they call home. By volunteering with Habitat for Humanity, you can play a role i
25、n building up your community. Their Habitat Youth Programs accept volunteers between the ages of 5 and 40 for everything from home construction to affordable housing advocacy.Meals on WheelsFor those teens who just got their licenses and love any reason to get behind the wheel, heres a volunteer opp
26、ortunity that ll make driving worthwhile. Meals on Wheels is on a mission to meet the nutritional and social needs of seniors. 225 million meals have been delivered so far-connect with your local provider to find out how you can get involved.Key ClubAs the oldest service program for high schoolers,
27、the Key Club has quite a history of helping teens get involved in volunteering. Because clubs are student-led, you get a direct say in the kinds of service projects you want to do.Chances are, theres already a chapter in your school, but if not, you can try taking the lead in one.Best BuddiesVolunte
28、er with Best Buddies to help end the social, physical, and economic isolation of 200 million people with intellectual and developmental disabilities-and youll make some new pals in the process! Join a school chapter (or start your own) to use friendship as a tool for inclusivity in your community.An
29、d dont worry. Even if you cant volunteer physically, there are also tons of online volunteer Opportunities available! Find out more about joining a worthwhile volunteer organizations at www.Gen Z.org.24. If you want to help people with disabilities, yon can joinA. Habitat for HumanityB. Meals on Whe
30、elsC. Key ClubD. Best Buddies25. Teens with a driving license can volunteer toA. send meals to the elderlyB. make nutritional mealsC. drive the seniors aroundD. teach the seniors to drive26. What, does the underlined word “chapter mean in the passage?A. A part of a book.B. A branch of a club.C. A pe
31、riod of life.D. An office on campus.27. The author writes this passage to.A. get more people to volunteerB. teach teens to be more creativeC. promote awareness of world affairsD. instruct teens to earn volunteer hoursCWe are fortunate to live in a city that encourages bicycling as a means of transpo
32、rtation. Our local government has promoted bicycling by improving bike lanes and increasing the number of them. The growing number of cyclists, however, brings this question to mind: should bicyclists be required to share the responsibilities of the road? Automobile drivers have to take competency t
33、ests, follow established regulations, and accept punishment for breaking rules. The city requests drivers to register and license their vehicles to ensure accountability (责任）。 Bicyclists who use public roadways should be held accountable, too.Lets look at what sharing the road means. For one thing,
34、it should involve cost sharing. Autoregistration and license fees are used, in part, for building and maintaining roadways. It seems only reasonable to ask bicyclists to contribute to transportation funding as well.More importantly, sharing the road includes accountability. When drivers ignore the r
35、ules of the road, the police and other motorists have the opportunity to identify them by their license plate number and report their offenses (违法行为）。 This isnt true for bicyclists. Ive seen bicyclists moving quickly between lanes. Because they show no identification, they feel protected by anonymit
36、y(匿名）。What good would it do to report to the police “I saw a guy on a red bike blow through the stoplight? The simple act of making bicyclists identifiable would encourage safer, more responsible riding.Of course, Ive heard arguments against asking cyclists to register and license their bikes. Some
37、people might say, “Little kids ride bikes. Would you require a six-year-old rider to take a test and pay a fee? Obviously, the city could determine an age when cycling would be considered a means of transportation on public roads. Other people argue that bicycle fees are unfair because bikes dont da
38、mage the roadways as cars do. Bicycle registration fees could be comparatively modest, and the method for displaying a license number could be simple.Many U.S. cities and towns now implement bike registration and licensing. A statute(法规）from one. California town states that the laws regulating bicyc
39、les have a dual purpose, antitheft and safety. Im eager to see more bicyclists on the road, and Im hoping for riders who take their responsibilities seriously.28. To advocate responsible cycling, the author suggestsA. increasing the number of bike lanesB. giving competency tests to all cyclistsC. id
40、entifying cyclists through registrationD. reporting cycling offenses more frequently29. What is the authors purpose in writing Paragraph 4?A. To explain how bicycle registration and licensing work.B. To provide solutions to reduce irresponsible cycling of kids.C. To respond to peoples doubts about h
41、olding cyclists accountable.D. To argue against requiring cyclists to register and license their bicycles.30. What argumentative methods are used in this article? Using examples Quoting professionals Comparing and contrasting Appealing to readers emotionsA. B. C. D.31. Which of the following would b
42、e the best title for the passage?A. Should we encourage more cycling in the city?B. Should cyclists register and license their bikes?C. What does sharing the road mean to cyclists?D. How can road safety be guaranteed for cyclists?DAlzheimers AIAn estimated 5.7 million people in the U.S. have Alzheim
43、ers disease-the most common type of dementia(痴呆）and that number is expected to more than double by 2050. Early diagnosis is crucial for patients to benefit from the few therapies available. But no scans can deliver a conclusive diagnosis while a person is alive; instead doctors have to conduct numer
44、ous and complicated clinical and neuropsychological tests. So there is growing interest in developing artificial intelligence to identify Alzheimers based on brain imaging.Researchers at the University of California, San Francisco, have now successfully trained an AI algorithm(算法） to recognize one o
45、f the early signs of Alzheimers-a reduction in the brains glucose（葡萄糖）consumption-in positron emission tomography (PET) imaging.The algorithm accurately predicted an eventual Alzheimers diagnosis in nearly all the test cases, according to the study. In PET imaging, a very small amount of a radioacti
46、ve compound are injected into the body, producing three-dimensional images of metabolism(新陈代谢）。circulation and other cellular activities. PET is well suited for an AI diagnostic tool because Alzheimers leads to subtle changes in the brains metabolism that begin years before neural(神经的） tissue starts
47、 to go downhill, says study co-author Jae Ho Sohn, a radiologist at UCSF. These changes are very hard for radiologists to pick up, he notes.The algorithm was trained and tested on 2,100 PET brain images from about 1,000 people 55 years and older. The images came from a 12-year study that tracked peo
48、ple who would ultimately be diagnosed with Alzheimers, as well as those with mild memory declines and healthy control participants. The algorithm was trained on 90 percent of the data and tested on the remaining 10 percent. It was then retested on a second, independent data set from 40 patients monitored for 10 years. The algorithm was highly sensitive and was able to recognize 81 percent of the patients in the first test
