1、人教（2019）版高中英语选择性必修第一册第二单元限时练时间：100分钟 分值：120第一部分 阅读理解(共两节，满分50分)第一节 (共15小题；每小题2.5分，满分37.5分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题纸上将该项涂黑 AUnsolved Mysteries About the Planet EarthMystery 1: Where did water come from?Water covers more than 70 percent of the Earths surface and that makes the Earth earn
2、the nickname the blue planet . Then where di water come from? The most popular scientific theory states that the H2came from several violent asteroids(小行星）covered with ice.Anothe suggests that the water actually has been around since the Earths formation However it happened, though, its certainly wo
3、rked out well for the Earth life forms.Mystery 2: What about all the oxygen?Another thing is the planets oxygen. Tiny creatures released oxygen as a waste product , filling the atmosphere with it . After that , the level of oxyge in the Earths atmosphere went wildly up and down until it finally calm
4、e down around 540 million years ago. Since then, its remained at about the breathable level we know today. But what caused it to be suddenly steady? Mystery 3:What caused the Cambrian(寒武纪）Explosion?The Cambrian Explosion refers to the explosion of complex life forms that occurred on Earth about 540
5、million years ago. Before then, life had consisted mostly of microbes. But at the beginning of the Cambrian period complex creatures began developing at a rate never seen before. Suddenly,life forms had brains, eyes, and bones. Most living creatures today can trace their blood back to the Cambrian p
6、eriod.Mystery 4: Will we be able to predict earthquakes?We still havent been able to come up with a way to accurately predict earthquakes. We can certainly try, but our current technology cannot predict them exactly. We know that earthquakes start when the rock cracks underground and the enormous en
7、ergy released in the process causes vibration, which generates earthquake waves, but we havent figured out why that happens, or how to predict it.1.What was created by creatures on Earth?A.Water.B.Bacterium.C.Oxygen.D.Ice.2. Which of the following talks about the Earths advanced species?A . Mystery
8、1 .B.Mystery 2.C. Mystery 4.D.Mystery 3.3. What do we know about Mystery 4?A. It is a matter that has extremely practical significance.B.It will be solved in the near future.C. It is the most difficult mystery to solve of the four.D. It is the oldest mystery of the four.BRuss Fee was asleep inside h
9、is tent last summer in Canadas Banff National Park when screams shocked and awoke him. Throwing on his shoes and grabbing a lantern his wife had handed to him , he ran out to investigate .Despite the darkness, he could make out a neighboring tent. There was a wolf dragging something in his teeth-a m
10、an.Moments earlier, Elisa and Matt, were asleep with their two young children when the wolf tore into their tent. It was like something out of a horror movie, Elisa recalled. For three minutes, Matt threw his body in front of Elisa and the boys and fought against the wolf. At one point, Matt got the
11、 upper hand, but the wolf turned the tables and dragged Matt outside while Elisa was pulling on his legs trying to get him back.It was then that Russ Fee entered the picture. He ran toward the beast, kicking it in the hip. The wolf dropped Matt and emerged from the tent. Fee felt like he had hit som
12、eone bigger than him.Before the wolf could turn its anger at Fee, Matt, whose arms were bloody, restarted the battle. The men threw rocks at the wolf, keeping it off. Then the families fled to the shelter-Fees minivan and called an ambulance.Attacks are so rare that a person here has a greater chanc
13、e of being killed by a dog, lightning, a bee sting, or a car collision with a deer thar being injured by a wolf , said Matt .Fee did think about drawing back , if less heroic , in the heat of battle . The moment the wolf locked eyes with him, Fee said, I immediately regretted kicking it.4.What were
14、the two families doing in Banff National Park?A. They were making a horror movie.B. They were camping.C. They were studying wolves.D. They were investigating the park.5.How did Matt escape from the wolf?A. By Fees kicking the wolf from behind.B. By turning the table on the wolf.C. By placing his han
15、d tightly on the wolf.D. By his wifes pulling on his legs.6. What can be inferred from Paragraph 5?A. Many deer are killed by vehicles.B. Dogs are peoples friends in need.C. Wolves seldom attack people there.D. People are often attacked by wolves.7. Which word can best describe Fee in the story?A. B
16、rave. B. Responsible.C. Indifferent. D. Clever.CAs data and identity theft becomes more and more common, the market is growing for biometric（生物测量）technologieslike fingerprint scansto keep others out of private e-spaces. At present, these technologies are still expensive, though.Researchers from Geor
17、gia Tech say that they have come up with a low-cost device（装置）that gets around this problem: a smart keyboard. This smart keyboard precisely measures the cadence（节奏）with which one types and the pressure fingers apply to each key. The keyboard could offer a strong layer of security by analyzing thing
18、s like the force of a users typing and the time between key presses. These patterns are unique to each person. Thus, the keyboard can determine peoples identities, and by extension, whether they should be given access to the computer its connected to regardless of whether someone gets the password r
19、ight.It also doesnt require a new type of technology that people arent already familiar with. Everybody uses a keyboard and everybody types differently.In a study describing the technology, the researchers had 100 volunteers type the word touchfour times using the smart keyboard. Data collected from
20、 the device could be used to recognize different participants based on how they typed, with very low error rates. The researchers say that the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive, plastic-like parts. The team hopes to make it to market in the
21、near future. 8. Why do the researchers develop the smart keyboard? A. To reduce pressure on keys. B. To improve accuracy in typing C. To replace the password system. D. To cut the cost of e-space protection.9. What makes the invention of the smart keyboard possible? A. Computers are much easier to o
22、perate. B. Fingerprint scanning techniques develop fast. C. Typing patterns vary from person to person. D. Data security measures are guaranteed.10. What do the researchers expect of the smart keyboard? A. Itll be environment-friendly. B. Itll reach consumers soon. C. Itll be made of plastics. D. It
23、ll help speed up typing.11. Where is this text most likely from? A. A diary. B. A guidebook C. A novel. D. A magazine.。DIn the past decade, the use of social media has grown in a way that no one could have guessed. It has turned some teenagers into celebrities and turned the famous into the infamous
24、,overnight.A key feature of social media, however, is its volatility.Trends come and go, disappearing almost as quickly as they appeared.Short video apps such as Tik Tok and its Chinese equivalent(对应物）Douyin,took the world by storm.The Telegraph reported that Tik Tok was ranked 8th on Apples App Sto
25、re in April. And Douyin had more than 300 million domestic monthly active users in June, CNBC said.Why are these short videos-which are rarely longer than a few minutes-so popular? Jiang Yige, Singapore-based analyst at FengHe Fund Management, has a theory. Short videos are just right to fill in the
26、 little gaps in our busy schedules,he told CNBC.These videos-apart from being very convenient-are important to teenagers because they allow them to express themselves,according to Teen Vogue.Liza Koshy, a user of the US app Musical. ly who has over 2 million followers,said,The sense of community tha
27、t users of short video apps get is another appealing feature.Live streaming(直播）is a feature of our social media life that now seems as natural as sunrise . Its a pretty neat idea : You can watch anyone , anywhere , live . However , China has taken live streaming to a whole new level. In China, more
28、than 100million viewers monthly watch a live streaming video. Forbes thought that a number of factors had led to the popularity of live streams. Among them is viewers ability to interact with others using unknown names. However, the quick development of social media may be having side effects too. F
29、ake news is one serious problem it causes. Materials shared on these platforms are often not checked for accuracy. The most basic content can be false and can mislead users one way or another. We use social media all the time; that doesnt mean that we understand the influence it is having on us. We
30、should be mindful of both the time we spend on it and its impact on our minds.12. The underlined word volatility in Paragraph 2 possibly means being_.A.changeable B.steadyC.promising D.violent13. According to Liza Koshy, short videos are very popular because_.A.they are very convenientB.they help pe
31、ople kill timeC.they provide a sense of communityD.they allow people to express themselves14.What do we know about social media?A.The information from social media is totally reliable.B.When it comes to social media,people only know short videos.C.People cant communicate with each other without soci
32、al media.D. There is still much room for improvement in social media.15.What is the authors attitude to the quick development of social media?A.Objective.B.Subjective.C.Favorable.D.Disapproving.第二节 (共5小题；每小题2.5分，满分12.5分) 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Imagine you are on a long car trip. It
33、 is night and you take a wrong turn onto a dark country road. With a sinking feeling, you realize that you have no idea where you are ._16_, and the answer is written by light. A shining compass face,with north, south, east and west at the four points, and a big needle is pointing at north. What a r
34、elief! You turn your car around and head in the right direction guided by the sky.For migratory birds, finding their way over long distances through the darkest nights is their second nature. _17_-directions written by light and magnetism(磁力）. Some birds travel thousands of miles in their twice-year
35、ly journeys . _18_ , like mountain ranges and rivers , to help decide the directions; but birds may also navigate by using the stars, and sensing or even seeing the Earths invisible magnetic field.For many years, scientists have been studying whats behind the strong ability of migratory birds to fin
36、d their way to their winter and summer homes.Here is one thing that they agree on. _19_. This compass leads them to make their very first in the direction that has been the dight in the traveled by the rest of their species. _20_.A. Then you glance up the skyB. They do it in part by reading directio
37、ns in the skyC.So birds are born knowing which way their home isD. Magnetism is important for all animals, especially birds and fishesE. When theyre on the way, they take advantage of familiar landmarksF . Migratory baby birds are already equipped with a kind of natural inner compassG. In birds, mig
38、ration means two-way journeys-the onward journey and the backward journey第二部分 语言运用 （共两节 满分30分）第一节：完型填空（共15小题，每小题1分，满分15分）When 19-year-old Chloe Mitchells senior trip was canceled due to the pandemic, she knew she couldnt just lie around the house. Not only is she a passionate volleyball player with
39、an active lifestyle, shes also a teenager. Being _21_ in the house all day with your parents isnt idealno matter how much you love them.“I was bored. I was really depressed because quarantine had taken away my senior year,” she explained. “I needed something to _22_ worries in my mind. I needed _23_
40、 labor. I needed space from my family.”As a self-described DIY obsessive, Mitchell saw the shabby shed in the yard, a relaxing space to call her own. Unfortunately, as she set about _24_ the forgotten shed into a stylish vacation homeShe Shed, Mitchell was upset that social-distancing rules meant sh
41、e couldnt invite her friends over. So she decided to share the _25_ with her 34 followers on TikTok, _26_ close friends, letting them know every step she did during the following days.Over the next 10 days, Mitchell began to _27_ the contents of her small shed used as a storage bam so that it could
42、be cleaned easily. After that, she wiped down the original wooden beams before giving them a fresh layer of white _28_ Once the paint had dried, she hung fairy lights, _29_ the space with plants and added a television and refrigerator donated by neighbors. She even built herself a daybed and purchas
43、ed a little bed for her dog, Lilly.Happy to be out in the sun, putting her DIY skills to good _30_ and sharing the experience with her friends, Mitchell could never have predicted what happened next. Known as “she shed girl”, Mitchell now has a(an) _31_ 2.7 million followers on TikTok, where she sha
44、res DIY tips and snippets of her life as a freshman at Aquinas College in Michigan. _32_ by the success of her first project, Mitchell turned her attention to the familys pool house, imagining it as a charming pub shed.Commenting on Mitchells _33_ shed renovation, the experts at My Tool Shed DIY sai
45、d, “Stress levels have _34_ in the last year due to the effects of the COVID-19 pandemic. Now more than ever people need time to do something they love. Having a _35_ space like a she shed can be perfect for this.”21. A. lockedB. occupiedC. stuckD. closed22. A. give outB. take offC. pick upD. settle
46、 down23. A. mentalB. convenientC. casualD. physical24. A. buildingB. mendingC. transformingD. exchanging25. A. assignmentB. projectC. progressD. shed26. A. mostlyB. reallyC. hardlyD. naturally27. A. furnishB. prepareC. fixD. empty28. A. woodB. paintC. sheetD. paper29. A. filledB. putC. placedD. offe
47、red30. A. positionB. effectC. useD. practice31. A. delightedB. depressingC. incredibleD. horrible32. A. EncouragedB. FrustratedC. ExhaustedD. Satisfied33. A. imperfectB. impressiveC. importantD. impossible34. A. decreasedB. declinedC. raisedD. skyrocketed35. A. reflectedB. limitedC. relievedD. dedicated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。Have you ever been too shy to express thanks towards someone? Well, a new study says you should not worry about that s
