湖南省长沙市长郡中学2019-2020学年高一5月联考英语试题及答案word
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2019-2020学年长沙市长郡芙蓉中学高三英语第三次联考试卷及答案第一部分阅读(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AMust-see MusicalsReady to get back to the theater and enjoy some toe-tapping show tunes? Whether you're a Londoner or just visiting the capital for a day, you're sure to find a good night out from our selection of must-see musicals. Book your ticketsin advance to catch the hottest shows!●TINA- The Tina Turner MusicalFrom humble beginnings in Nutbush, Tennessee, to her transformation into global Queen of Rock n' Roll, Tina Turner didn't just break the rules, she rewrote them. This new stage musicalreveals the story of a woman who dared to defy the bounds of her age, gender and race. TINA—The Tina Turner Musical is written by Oliver Award-winning playwright Katori Hall and directed by Phyllida Lloyd.Performance times: Monday 7 pm; From June 3, 2021 until June 26, 2022Venue: Aldwych Theater, 49 Aldwych, London, WC2B 4DF●The Lion KingTaking the famous story of Simba and his ascension to king, the stage show is a one-way ticket to Pride Lands. With fascinating scenery drawing you in, you'll almost feel like you're part of the action as you journey through Simba's world. To bring The Lion King to life, the show's original director, Julie Taymor, combined live performers and creative props. Creating a visual feast that's since redefined how musicals could and should look, The Lion King really is an all singing, all-dancing affair.Performance times: Tuesday—Saturday 7: 30 pm; From June 1, 2021 until April 3, 2022Venue: Lyceuwm Theater, 21 Wellington Street, London WC2E 7RQ●The Prince of EgyptJourney through the wonders of Ancient Egypt as two young men, raised together as brothers in a kingdom of privilege, find themselves suddenly divided by a secret past. One must rule as Pharaoh, but the other must rise up and free histrue people; both face a destiny that will change history forever.With a huge cast and orchestra of almost 60 artists, this “truly phenomenal production” is based on the classic Dream Works Animation film and features the international best-selling, Academy Award-winning songWhen You Believe.Performance times: Monday—Saturday 7: 30 pm; From July 1, 2021 until January 8, 2022Venue: Dominion Theater, 268—269 Tottenham Court Rd, Fitzrovia, London W1T 7AQ1. Who is the author of TINA—The Tina Turner Musical?A. Oliver Award.B. Katori Hall.C. Phyllida Lloyd.D. Tina Turner.2. What is special for The Lion King?A. It is written by a famous director.B. It reveals a conflict between two brothers.C. It offers a lifelike feast for eyes.D. It shows the importance of protecting lions.3. If you prefer the songWhen You Believe, which theater should you go to?A. Dominion Theater.B. Lyceuwm Theater.C. Aldwych Theater.D. Egypt Theater.BFollowing the Famous Silk RoadsThe Silk Roads were a networkof ancient trade routes that extended from East Asia all the way to theMediterranean. A key section of the Silk Roads is the Chang’an-Tianshan corridor(走廊), whichstretchesover a distance of around 5,000 kilometres through China, Kazakhstan and Kyrgyzstan, covering a total of 8,700 kilometres of trade routes. The three countries jointly pursued an application for UNESCO World Heritage (遗产) status which contained detailed research on the 33 sites along the corridor. This made history as the first successful multinational World Heritage application.The starting point of the corridor and the entire Silk Roads network isXi’an, inShanxiProvince. Further west on the Silk Roads, the geography gradually changes from wild deserts to high, snow-capped mountains to vast grasslands as the routes pass through theTianshanMountainsand emerge in the valleys ofCentral Asia. Although the Chang’an-Tianshan corridor of the Silk Roads ends here, the network continues westwards until it reaches theMediterranean.The corridor began to develop in the 2nd century. Assigned by the emperor, the ambassador Zhang Qian journeyed from Chang’an toCentral Asia, seeking to build bridges between the Han Dynasty and the Western Regions. Following Zhang’s efforts, trade routes took shape and relationships were strengthened between the major powers of the time, with the routes network reaching as far as theRoman Empire.Economic activities along the routes network were not limited to trade in silk. They contributed many other items to the marketplace of goods. The routes were busy with camels carrying loads of goods and businessmenselling everything imaginable.China’s exports included silk, porcelain, ironware and tea, while horses, jewellery, spices and grapes were all imported over vast distances from the West.In addition to trade exchange, the network served as a bridge for cultural exchange which shaped the evolution of science, art, technology and many other areas in societies along the network. Astronomy and mathematics were introduced toChinafromIndiaandArabia; important Chinese inventions such as papermaking and printing were brought to the West.All of these activities contributed to a great age of expansion as trade and cultural exchanges gave people access to new goods,knowledge and ideas. These routes connected Eastern and Western civilizations, which achieved a shared development. The addition of the Chang’an-Tianshan corridor to the UNESCO World Heritage List is a milestone in recognition of the Silk Roads as a crucial part of humanity’s common heritage.4. The key section of the Silk Roads is________.A. the MediterraneanB. Xi’an, inShanxiProvinceC.KazakhstanandKyrgyzstanD. the Chang’an-Tianshan corridor5. The underlined word “stretches” in Paragraph 1 is close in meaning to________.A. standsB. spreadsC. movesD. flies6. Zhang Qian travelled from Chang’an toCentral Asiato________.A. export silk, porcelain, ironware and teaB. purchase horses, jewellery, spices and grapesC. seek help from the most powerful western countriesD. build bridges between his country and other countries7. What was the role of the Silk Roads according to the passage?A. It helped to change the wild deserts to grasslands.B. It was recognized by the UNESCO asChina’s heritage.C. It speeded up the development of the countries involved.D. It started a trade competition between countries along the way.CJapan has announced emergency Covid measures in Tokyo and three other areas in order to control rising infections (传染病), just three months before the country is set to host the Olympics. The government said the state of emergency — set to last for about two weeks— would be “short and powerful”. Under the measures, bars will be required to close and big sporting events will be held without audience. The government has insisted thatthe Olympics will go ahead in July.Prime minister Yoshihide Suga announced the measures on Friday, saying they would begin on Sunday and remain in place until 11 May. In addition to to Tokyo, Osaka, Kyoto and Hyogo will be affected. It has marked the third state of emergency in japan since the pandemic began. “I sincerely apologize for causing trouble for many people again,” he said. “It is feared that infection in major cities will spread across the whole country if we take no measures.”Under the rules, major facilities like department stores will close, as well as restaurants, bars, and KTV rooms serving alcohol. Restaurants that do not serve alcohol are being told to close early, and companies are being asked to make arrangements for people to work remotely. Schools will remain open. Besides, the emergency measurescoincide withthe country’s “Golden Week” holiday, which runs from late April to the first week of May and is the busiest travel period of the year. Tokyo governor Yuriko Koike urged residents to start taking precautions immediately. In an effort to discourage people from going out at night. She said neon signs (霓虹灯) would be turned off.The coronavirus toll in Japan has been much lower than that in many other countries, with about 558,000 cases and fewer than 10,000 deaths, according to figures collected by Johns Hopkins University. But there are concerns over the latest rise in infections, with reports of hospital bed shortages in some areas.Tokyo 2020 president Seiko Hashimoto said at a news conference on Friday that organizers were not considering canceling the event. “I hope the coronavirus situation improves with the prevention measures the government, Tokyo, and other regional governments have put into place,” she said. “We, as Tokyo 2020, continue to wish for the swift return to normal and will continue to work closely to make sure a safe and secure Olympics can happen.”8. According to the passage, what does Japanese government advise people to do?A. To watch a live game.B. To work at home.C. To hang out in the evening.D. To study at home.9. What is the aim of bringing in emergency Covid measures?A. To relieve people's fear of the the pandemic.B. To settle the problem of hospital bed shortages.C. To test government’s management of emergency.D. To ensure the smooth running of the upcoming Olympics.10. Which words can best describe the government’s action?A. generous and brilliant.B. costly but useless.C. positive and considerate.D. accidental but efficient.11. What does the underlined phrase “coincide with” in Paragraph 3 mean?A. meet withB. deal withC. make upD. set upDImagine that youare a superhero. Your superpowers are activated by a special suit. The suit communicates with your brain. It allows you to do amazing things with only a thought. By concentrating on strength, for example, you can kick a soccer ball across a field. By focusing on swift actions, you can jump to the top of a tree.Such a connection between mind and machine may sound like a fantasy. To scientists, though, it is a very real goal. They are creating machines that let disabled monkeys walk. These machines may soon help disabled humans do the same. Unlike other bionic devices, these robotic “super suits” do not communicate with muscles and nerves. Instead, they have a direct line to the brain.In 2005, doctors drilled a hole in the skull of Hutchinson, who had lost her right arm in an accident. Then they inserted a sensor onto her motor cortex (大脑皮层运动区). Wires connected the sensor to a receiver on her head. After she recovered, researchers pluggedHutchinson’s receiver into a cable that relayed signals from her brain to computers. Then they connected a robotic arm to the computers. The computerscould interpretHutchinson’s brain signals to move the arm.Soon,Hutchinson, the computer, and the robotic arm became a team.Hutchinsonwas even able to lift her hand and drink from a cup. “She smiled when she put down that drink—that’s everything.” says Donoghue, a brain scientist.Today other scientists are building on that success. One of those scientists is Dr. Miguel Nicolelis, who designed a whole-body bionic equipment. In 2014, a disabled former athlete kicked the first ball of the World Cup Games wearing one of Miguel’s full-body exoskeletons.The exoskeleton was connected to brain signal sensors in the man’s cap. By thinking about kicking, he sent signals to a computer on his back. The computer then translated the signal into an exoskeleton-aided kick. Such designs may become common as scientists keep merging mind and machine.12.Which can best describe the tone of paragraph 1?A. Narrative and serious.B. Persuasive and critical.C. Informative and objective.D. Descriptive and imaginative.13. What is paragraph 3 mainly about?A. Reason of the experiment.B. Results of the experiment.C. Process of the experiment.D. Significance of the experiment.14. Why is Dr. Miguel’s exoskeleton special?A. It can be used on animals.B. It can move the whole body.C. It was supported by computers.D. It was connected directly to the brain.15. What can be inferred from the last paragraph?A. Robotic suits may be widely used to help disabled people.B. Exoskeleton is more common thanHutchinson’s bionic arm.C.Scientific experiments are commonly carried out in football fields.D. Disabled athletes can now play football again with the help of computer.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。
2019-2020学年长沙长郡中学高三英语第三次联考试题及答案第一部分阅读(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AIf you are sending a text message watching TV or listening to the radio, you may stop and give this your full attention. Multitasking shrinks (使.....萎缩)the brain? research suggests.A study found that men and womenwho frequently used several types of technology at the same time had less grey matter in a key part of the brain. University of Sussex researchers said, " Using mobile phones, laptops and other media devicessimultaneouslycould be changing the structure of our brains."Worryingly, the part of the brain that shrinks is involved in processing emotion. The finding follows research which has linked multitasking with a shortened attention span, depression , anxiety and lower grades at school.The researchers began by asking 75 healthy men and women how often they divided their attention between different types of technology. This could mean sending a text message while listening to music and checking e-mail, or speaking on the phone while watching TV and surfing the Internet. The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingu-late cortex (ACC)(前扣带皮层).Scientists have proved that brain structure can be changed on exposure to fresh environments and experience.Other studies have shown that training—such as learning to play magic tricks or taxi drivers' learning the map of London―can increase grey matter densities (密度)in certain parts.Experts have also warned of the harmful impact technology can have on our memory and attention span. The University of California team conducted a survey of more than 18,000 people aged between 18 and 99,and found 20%had problems with memory. Researchers were shocked greatly by the 14 % of 18 to 39-year-old people who also worried about their memories.Multitasking may shorten attention span, making it harder to focus and form memories, the researchers said, adding that youngsters may be particularly affected by stress.1. The underlined word " simultaneously" in Paragraph 2 means "________,"A. on one's ownB. at no timeC. at the same timeD. by accident2. All of the following are possible effects of multitasking EXCEPT________ .A. saving timeB. a shortened attention spanC. lower grades at schoolD. depression and anxiety3. Which ofthe following can be the best title of this passage?A. Media multitasking is becoming more popularB. Multitasking shrinks the brainC. Multitasking may shorten attention spanD. People are worried about their memories.BWe interviewed two people, one who went from the country to the city and one who did the opposite.Janet Lincoln is a salesgirl who moved to St. Louisfive years ago. Here’s what Janet told us:“Five years ago I used to live in a small town called Lemon Falls. I grew up and went to high school there. After I graduated I worked in a supermarket. Lemon Falls had a population of about 800 people, and I knew every single one of them. They all knew everything about me, too. You couldn’t do anything without everyone in town knowing about it. The first chance I got I moved to St. Louis and I love it. I don’t know as many people now as I used to, but that’s OK. I have a few good friends, and I see them when I want to. I kind of like beinganonymous. I’d never go back to Lemon Falls.”Troy Henson had the opposite experience. He and his wife, Darla, and their two children moved from St. Louis to Bloomfield three years ago. Here’s what Troy told us:“The best thing we ever did was get out of St. Louis. Don’t get me wrong; St. Louis is as good a place as any other city, I suppose — if you like cities, that is. We don’t. Both Darla and I grew up in St. Louis. We met at college and got married. Then the kids came along and life got difficult. We didn’t know any of our neighbors. We both had good jobs, but it always seemed like there was never enough money. That all changed when we moved to Bloomfield. I don’t make as much money as I used to, but then we don’t have as many expenses as we did. We know our neighbors. Life is good. We’d never leave Bloomfield.”4. What troubled Janet when she was in Lemon Falls?A. She had no friends.B. There was no privacy.C. There was a lot of competition.D. She couldn’t find a well-paid job.5. What does the underlined word “anonymous” in Paragraph 3 mean?A. Alone.B. Prepared.C. Sociable.D. Unknown.6. Different from Janet, Troy ________.A. prefers country lifeB. moved to a bigger cityC. grew up in a smaller townD. knows little about his new neighbors7. What is Troy’s opinion on living in Bloomfield?A. It is a little boring.B. It is quite comfortable.C. It costs a lot of money.D. It creates a safe environment.CThe American poet Louise Gluck, author of 12 collections of poetry, has been awarded the 2020 Nobel Prize in Literature. Born inNew Yorkin 1943, Gluck published her first volume of poetry, “Firstborn”, in 1968, quickly gaining her reputation as a poet. In the decades since, she has become one of the country's most celebrated literary figures. Her work uses the power of myth to deal with some of our darkest human concerns. Her straightforward language always gets at the heart of deep-seated anxieties: loneliness, rejection, death ...Stephanie Burt,an English professor atHarvardUniversity, said, “She's someone who's been able to make emotion states vivid on the page... Few poets have tried as hard as she has not to repeat herself. And her strongest books are really different from one another”. “She offers poetry lovers a lot of inspiration, but she's also on a lot of bookshelves," said Chiasson, a poet, who added she is a generous reader of her fellow writers’work.At Yale, where Gluck is a professor of English, she served for years as judge of the Yale Series of Younger Poets Prize and worked closely with poets she chose for the prize and those she did not, helping them shape their work. “In that very practical way she's had an enormous influence on a great many figures,” said Langdon Hammer, a professor of English at Yale. “She's someone who has been a 'guiding spirit’ for generations of students, writers, and readers.”Gluck described teaching and writing as symbiotic. “I teach not out of selflessness or generosity: I do it because it feeds me,” she said. “It feeds them, too, so it's a happy relationship. I'm sure not all my students feel that way, but some do. I never feel that it takes me from my work: I think it gives me my work.”8. Which of the following topics might Gluck tend to explore in her work?A. Victory.B. Divorce.C. Romance.D. Achievement.9. What quality does Gluck have according to the passage?A. Humorous and intelligent.B. Ambitious and helpful.C. Considerate and optimistic.D. Inspiring and creative.10. What does teaching mean to Gluck?A. A source of wealth.B. A barrier to writing.C. A fountain of creation.D. A stepping stone to fame.11. What is the best title for the text?A. A Guiding SpiritB. A Successful PioneerC. An Adventurous CreatorD. A Hardworking WriterDIs renting clothes greener than buying them? Sustainable (可持续的) fashion expert Elizabeth Cline isn’t sure. Clothing renting is a hot new industry and businessmen are trying to attract shoppers who care about the environment. Last summer alone,Urban Outfitters, Macy’s, Bloomingdale’s American EagleandBanana Republicall announced renting services – a sure sign of changing times.But is renting fashion actually more environmentally-friendly than buying it? And if so, how much more? Journalist and author Elizabeth Cline researched this question in a feature article for Elle, and she concluded that it’s not as sustainable as it seems.Take shipping for example, which has to go two ways if an item is rented – receiving and returning. Cline writes that consumer transportation has the second largest carbon footprint of our collective fashion habit after manufacturing.Then there’s the burden of washing, which has to happen for every item when it’s returned, regardless of whether or not it was worn. For most renting services, this usually means dry-cleaning, which is a polluting process. All the renting services that Cline looked into have replaced perchloroethylene, a carcinogenic (致癌的) air pollutants that’s still used by 70 percent of US dry cleaners, with hydrocarbon (碳氢化合物) alternatives, although these aren’t great either. They can produce harmful waste and air pollution if not handled correctly.Lastly, Cline fears that renting services will increase our appetite for fast fashion, simply because it’s so easily accessible. There’s something called “share-washing” that makes people have more wasteful behaviors because a product or service is shared and thus is considered more eco-friendly. Uber is one example of this: advertised as a way to share rides and reduce car ownership, and yet it has been proven to discourage walking, bicycling and public transportation use.Renting clothes is still preferable to buying them cheap and throwing them into the bin after wearing them a few times, but we shouldn’t let the availability of these services make us self-satisfied. There’s an even better step – and that’s wearing what we already have.12. What do we know about Elizabeth Cline from the passage?A. She is trying to attract shoppers.B. She is an expert and journalist.C. She has created “share-washing”.D. She never rents clothes.13. Why does renting services increase people’s appetite for fast fashion?A. Because it is handled correctly.B. Because it is transported easily.C. Because it is fairly eco-friendly.D. Because it is easily accessible.14. What can we infer from the passage?A. Clothing renting became popular ten years ago.B. Consumer transportation has the largest carbon footprint.C. Renting clothes deserves further consideration.D. Uber is a good example of sharing rides.15. Which section of a newspaper does the text probably come from?A. Environment.B. Technology.C. Travel.D. Medicine.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。
2019-2020学年长沙市湘郡中学高三英语第一次联考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AThe 2021 Weibo Movie Night—an award ceremony jointly organized by Sina Weibo and China Movie Channel—was held on June 12, gathering around 100 filmmakers and A-list stars. Following are some upcoming films.BipolarCast: Dou Jingtong, Tian Zhuangzhuang and Wang ZhiwenDirector: Li MengqiaoAudience will follow a young woman’s unusual trip across China,who wishes to send a stolen lobster (龙虾) back to the sea. Li said that it’s a sort of experiment, examining the line between dreams and reality. Andthis is singer-actress Dou Jingtong’s first leading role.On Your MarkCast: Wang Yanhui and Zhang YouhaoDirector: Chiu Keng Gua (Malaysia)Inspired from a true story,On Your Markis about a taxi driver and his son, a marathon enthusiast who’s struggling with a visually-impaired disease. In order to help his son to realize his dream, the father joins a marathon training group to serve as his son’s personal “competition assistant”. This film is expected to tug the heartstrings of moviegoers near Father’s Day.TheBattleatLakeChangjinCast: Wu Jing, Hu Jun, Li Chen and Zhang HanyuDirector: Chen Kaige, Tsui Hark and Dante LamThe film centers on how the Chinese People’s Volunteers fearlessly fought against foreign invaders during an extremely cold winter. The battle destroyed around 13,000 enemies of US troops, becoming a turning point to lay the foundation for the final victory.Chinese DoctorsCast: Zhang Hanyu, Yuan Quan, Zhu Yawen and Li ChenDirector: Liu WeiqiangAdapted from true stories, it is about Chinese medical staff’s battle to rescue lives during the COVID-19 outbreak last year inWuhanJinyintanHospital.1. Who plays the leading role inBipolar?A. Dou Jingtong.B. Yuan Quan.C. Li Mengqiao.D. Zhang Hanyu.2. Which film focuses on the war betweenChinaand theU.S.?A.Bipolar.B.On Your Mark.C.Chinese Doctors.D.TheBattleatLakeChangjin.3. What doOn Your MarkandChinese Doctorshave in common?A. They both star Zhang Hanyu.B. They are based on true stories.C. They reflect the efforts to rescue lives.D. They are directed by Chinese directors.BChimps use loud calls and gestures to make their feelings known but until now, the exact meaning for individual movements has remained a mystery. Now researchers believe they have translated the key gestures used in the chimp community and identified their intentions for the first time.From 4,351 gestures, experts were able to identify 66 that are used for 19 specific message meanings, including showing a foot to tell a child they can climb on their back. The researchers were able to narrow down these 66 gestures to 36 that are used intentionally to achieve 15 purposes. The translations were made by Dr Catherine Hobaiter and her colleagues at St Andrews University in Scotland.Dr Hobaiter used behavior sampling and filmed all recorded cases of gestural communication. Other gestures include stomping their feet to ask another chimp to stop what they are doing, and slapping objects together to ask another to follow them. Of the 19 meanings,17 encouraged interactions to start, or to develop, such as “move closer,” and “change play”. Some of the gestures were found to have more than one meaning. and only 10 of the 66 gestures were used for only a single meaning.Researchers collected a total of 471 video clips from two social groups of chimps at a shelter near Kinshasa, Democratic Republic of Congo. As well as identifying what the gesture means, they also discovered the technique needed to increase the chances of success.“Human children use gestures to communicate before they produce their first words, and their earliestgestures typically appear around 10 months of age,” explained the researchers. “In great apes, there is good evidence that language-trained individuals are capable of acquiring and understanding signals, but this is far less clear in their natural communication. ”4. Chimps slap the objects to____________.A. tell others to stop what they are doingB. ask others chimps to join themC. gather other chimps to move closerD. encourage interactions to start5. What did researchers find after studying 471 video clips?A. Chimps trained in language are good at understanding signals.B. Two social groups of chimps live at a shelter near Kinshasa.C. Language-trained individuals do well in natural communication.D. Chimps’earliest gestures appear around 10 months of age.6. How is the last paragraph developed?A. By analyzing causes.B. By examining differences.C By making comparisons. D. By following time order.7. What can be a suitable title for the text?A A New Research on Chimps B. Human Children and ChimpsC. Getting the Chimps Trained for LanguageD. Translating the Sign Language of ChimpsCFollowing the Famous Silk RoadsThe Silk Roads were a networkof ancient trade routes that extended from East Asia all the way to theMediterranean. A key section of the Silk Roads is the Chang’an-Tianshan corridor(走廊), whichstretchesover a distance of around 5,000 kilometres through China, Kazakhstan and Kyrgyzstan, covering a total of 8,700 kilometres of trade routes. The three countries jointly pursued an application for UNESCO World Heritage (遗产) status which contained detailed research on the 33 sites along the corridor. This made history as the first successful multinational World Heritage application.The starting point of the corridor and the entire Silk Roads network isXi’an, inShanxiProvince. Further west on the Silk Roads, the geography gradually changes from wild deserts to high, snow-capped mountains to vast grasslands as the routes pass through theTianshanMountainsand emerge in the valleys ofCentral Asia. Although the Chang’an-Tianshan corridor of the Silk Roads ends here, the network continues westwards until it reaches theMediterranean.The corridor began to develop in the 2nd century. Assigned by the emperor, the ambassador Zhang Qian journeyed from Chang’an toCentral Asia, seeking to build bridges between the Han Dynasty and the Western Regions. Following Zhang’s efforts, trade routes took shape and relationships were strengthened between the major powers of the time, with the routes network reaching as far as theRoman Empire.Economic activities along the routes network were not limited to trade in silk. They contributed many other items to the marketplace of goods. The routes were busy with camels carrying loads of goods and businessmen selling everything imaginable.China’s exports included silk, porcelain, ironware and tea, while horses, jewellery, spices and grapes were all imported over vast distances from the West.In addition to trade exchange, the network served as a bridge for cultural exchange which shaped the evolution of science, art, technology and many other areas in societies along the network. Astronomy and mathematics were introduced toChinafromIndiaandArabia; important Chinese inventions such as papermaking and printing were brought to the West.All of these activities contributed to a great age of expansion as trade and cultural exchanges gave people access to new goods,knowledge and ideas. These routes connected Eastern and Western civilizations, which achieved a shared development. The addition of the Chang’an-Tianshan corridor to the UNESCO World Heritage List is a milestone in recognition of the Silk Roads as a crucial part of humanity’s common heritage.8. The key section of the Silk Roads is________.A. the MediterraneanB. Xi’an, inShanxiProvinceC.KazakhstanandKyrgyzstanD. the Chang’an-Tianshan corridor9. The underlined word “stretches” in Paragraph 1 is close in meaning to________.A. standsB. spreadsC. movesD. flies10. Zhang Qian travelled from Chang’an toCentral Asiato________.A. export silk, porcelain, ironware and teaB. purchase horses, jewellery, spices and grapesC. seek help from the most powerful western countriesD. build bridges between his country and other countries11. What was the role of the Silk Roads according to the passage?A. It helped to change the wild deserts to grasslands.B. It was recognized by the UNESCO asChina’s heritage.C. It speeded up the development of the countries involved.D. It started a trade competition between countries along the way.DWho is a genius? This question has greatly interested humankind for centuries.Let's state clearly: Einstein was a genius. His face is almost the international symbol for genius. But we want to go beyond one man and explore the nature of genius itself. Why is it that some people are so much more intelligent or creative than the rest of us? And who are they?In the sciences and arts, those praised as geniuses were most often white men, of European origin. Perhaps this is not a surprise. It's said that history is written by the victors, and those victors set the standards for admission to the genius club. When contributions were made by geniuses outside the club—women, or people of a different color1 or belief—they were unacknowledged and rejected by others.A study recently published bySciencefound that as young as age six, girls are less likely than boys to say that members of their gender(性别)are “really, really smart.” Even worse, the study found thatgirls act on that belief: Around age six they start to avoid activities said to be for children who are “really, really smart.” Can our planet afford to have any great thinkers become discouraged and give up? It doesn't take a genius to know the answer: ly not.Here's the good news. In a wired world with constant global communication, we're all positioned to see flashes of genius wherever they appear. And the more we look, the more we will see that social factors(因素)like gender, race, and class do not determine the appearance of genius. As a writer says, future geniuses come from those with “intelligence, creativity, perseverance(毅力), and simple good fortune, who are able to change the world.”12. What does the author think of victors' standards for joining the genius club?A. They're unfair.B. They're conservative.C. They're objective.D. They're strict.13. What can we infer about girls from the study inScience?A. They think themselves smart.B. They look up to great thinkers.C. They see gender differences earlier than boys.D. They are likely to be influenced by social beliefs14. Why are more geniuses known to the public?A. Improved global communication.B. Less discrimination against women.C. Acceptance of victors' concepts.D. Changes in people's social positions.15. What is the best title for the text?A. Geniuses Think AlikeB. Genius Takes Many FormsC. Genius and IntelligenceD. Genius and Luck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。
2019-2020学年长沙长郡中学高三英语第三次联考试卷及参考答案第一部分阅读(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AWhen it comes to the greatest inventions of the world, China’s name is sure to be mentioned several times. There are hundreds of things which were invented by the Chinese.AlcoholShocked? I was because when they said alcohol I thought about either the US or the UK. China had never crossed my mind. In China, alcohol was made by two legendary persons named Yi Di and Du Kang who belonged to the Xia Dynasty. This period was about 2000 BC - 1600 BC. Research says that in ancient China, beer with 4% alcoholic content was widely consumed by people.TeaChina is the proud inventor of tea which was first drunk by Shen Nong, a Chinese emperor around 2737 BC. Tea production was rapidly developed, making tea a popular drink during the Tang and Song Dynasties.The Mechanical ClockHave you ever wondered what on earth we would be doing without any idea of time? A clock really is an invention without which things were incomplete. The credit of making the first mechanical clock goes to ancient China. The first mechanical clock was invented by Yi Xing in the Tang Dynasty. This was during 618 and 907.Silk FabricSilk, the favorite fabric of many girls out there, is also a Chinese invention. Although we all know that silk is made by silkworms, it was Chinese people who first invented a way to harvest the silk and then use it to make clothes. The oldest silk which has been found so far is in Henan Province and dates back to 3630 BC.1.We can learn from Paragraph 2 that ________.A.people in the US like alcoholB.beer was popular in the Xia DynastyC.Yi Di and Du Kang invented alcohol by accidentD.the author didn’t know alcohol is a Chinese invention2.The author asks the question in Paragraph 4 to show ________.A.ancient Chinese inventors were wiserB.many things in our lives are incompleteC.ancient Chinese people never wasted timeD.the invention of the mechanical clock is important3.Which of the following invention has a longer history?A.Tea.B.Alcohol.C.Silk fabric.D.The mechanical clock.BThe Great Barrier Reef's outlook remains “very poor” despite coral (珊瑚) recovery over the past year, Australian government scientistssaid Monday, just days before a UNESCO ruling on the site's world heritage (遗产) status.The United Nations cultural agency recommended last month that the world's largest reef (珊瑚礁) system be placed on its endangered list because of damage to the corals largely caused by climate change.The Australian Institute of Marine Science (AIMS) said the corals were now in a “recovery window” after a decade of harmful heat stress and cyclones (旋风). But such opportunities were becoming rarer due to the influence ofclimate change, the government agency, which has monitored the reef for 35 years, said in its annual report released today. “The increasing emergence of climate-related extreme weather events and starfish outbreaks is causing more severe and frequent pressures, giving the reef fewer opportunities like this to recover,”CEO Paul Hardisty said. The scientists surveyed 127 reef sites in 2021 and found hard coral cover had increased at 69 of the 81 locations surveyed in the past two years.Separate scientific research released last October found the 2, 300-kilometre (1, 400 miles) system had lost half its corals since 1995, with a series of ocean heatwaves causing mass coral death.Britta Schaffelke, research program director at AIMS, said the latest findings provided a slight hope that the reef still has the power of recovering. But she added that its future is still very poor because of the dangers of climate change and other factors that are affecting the reef.UNESCO has urged Australia to take urgent climate action but the government has long resisted calls to commit to net zero emissions (排放) by 2050. The government has said it hopes to meet the target “as soon as possible” without harming its economy, insisting dealing with climate change requires a global effort. The reef was worth about US $4. 8 billion a year in tourism for the Australian economy and there are fears that an “in danger” listing could weaken its tourist appeal.4. What is the major cause of the damage to the corals?A. The climate change.B. Lack of money.C. Over development.D. Too many tourists.5. What is mainly talked about in Paragraph 3?A. The result of the survey.B. The efforts AIMS has made.C. The slight chance of the recovery.D. The terrible situation of the climate.6. What is Britta Schaffelke's attitude towards the future of the reef?A. Unclear.B. Positive.C Intolerant. D. Anxious.7. What can we infer from the last paragraph?A. Australia wants to put the reef on the endangered list.B. The Australian government has ignored UNESCO's demand.C. Australia hopes to keep a balance between emission target and its economy.D. The Australian government refuses to take its share of responsibility of climate change.CBritish anthropologists (人类学家) Russell Hill and Robert Barton of the University of Durham, after studying the results of one-on-one boxing, tae kwon do, Greco-Roman wrestling and freestyle wrestling matches at the Olympic Games, conclude that when two competitors are equally matched in fitness and skill, the athlete wearing red is more likely to win.Hill and Barton report that when one competitor is much better than the other, colour has no effect on the result. However, when there is only a small difference between them, the effect of colour is enoughtipthe balance. The anthropologists say that the number of times red wins is not simply by chance, but that these results are statistically significant.Joanna Setchell, a primate (灵长目动物) researcher at the University of Cambridge, has found similar results in nature. She studies the large African monkeys known as mandrills. Mandrills have bright red noses that stand out against their white faces. Setchell’s work shows that the powerful males — the ones who are more successful with females — have a brighter red nose than other males.As well as the studies on primates by Setchell, another study shows the effect of red among birds. In an experiment, scientists put red plastic rings on the legs of male zebra finches and this increased the birds’ successwith female zebra finches, Zebra finches already have bright red beaks (鸟喙), so this study suggests that, as with Olympic athletes, an extra flash of red is significant. In fact, researchers from theUniversityofGlasgowsay that the birds’ brightly coloured beaks are an indicator of health. Jonathan Blount, a biologist, andhis colleagues think they have found proof that bright red or orange beaks attract females because they mean that the males are healthier. Nothing in nature is simple, however, because in species such as the blue footed booby, a completely different colour seems to give the male birds the same advantage with females.Meanwhile, what about those athletes who win in their events while wearing red? Do their clothes give them an unintentional advantage? Robert Barton accepts that “that is the implication” of their findings. Is it time for sports authorities to consider new regulations on sports clothing?8. According to their research. Hill and Barton conclude that ________.A. the colour of clothing has an effect on most sport eventsB. red should be the choice of colour for clothing in sportsC. red plays a role when competitors are equally capableD. athletes perform better when surrounded by bright red9. The underlined word “tip” in Paragraph 2 is closest in meaning to ________.A. achieveB. advanceC. keepD. change10. The example of the blue footed booby proves that ________.A. male birds use different body parts to draw attentionB. red is not the only colour to attract female birdsC. blue gives female birds the same advantageD. blue can indicate how healthy a bird is11. What can be inferred from the passage?A. The colour red gives male animals the most advantage.B. Male zebra finches prefer to have red plastic rings on their legs.C. Rules on sports clothing are going to be changed.D. Athletes wearing red may have an advantage over their opponents.DCuckoos don’t bother building their own nests—they just lay eggs that perfectly imitate those of other birds and take over their nests. But other birds are wishing up, evolving some seriously impressive tricks to spot the cuckoo eggs.Cuckoos are often know asparasites, meaning that they hide their eggs in the nest of other species. To avoid detection, the cuckoos have evolved so that eggs seem reproduction of those of their preferred targets. If the host bird doesn’t notice the strange egg in its nest, the little cuckoo will actually take the entire nest for itself after it comes out, taking the other eggs on its back and dropping them out of the nest.To avoid this unpleasant fate for their young, the other birds have evolved a few smart ways to spot the fakes, which we’re only now beginning to fully understand. One of the most amazing finds is that birds have an extra colour-sensitive cell in their eyes, which makes them far more sensitive to ultraviolet wavelengths and allows them to see a far greater range of colours than humans can. This allows cautious birds to detect a fake egg which might be exactly the same to our eyes.Fascinatingly, we’re actually able to observe different bird species at very different points in their evolutionary war with the cuckoos. For instance, some cuckoos lay their eggs in the nests of the redstarts. The blue eggs these cuckoos lay are practically alike to those of the redstarts, and yet they are still sometimes rejected. Compare that with cuckoos who target dunnocks. While those birds lay perfectly blue eggs, their cuckoo invaders just lay white eggs with brown irregular shaped spots. And yet dunnocks barely ever seem to notice the obvious trick.Biologists suspect these more easily fooled species like the dunnocks are on the same evolutionary path as the redstarts, but they have a long way to go until they evolve the same levels of suspicion. What’s remarkable is that the dunnocks fakes are so bad and the redstart ones so good, and yet cuckoos are still more successful with the former than the latter.It speaks to just how thoroughly a species’ behavior can be changed by the pressures of natural selection, or it might just be a bit of strategic cooperation on the part of the dunnocks. Biologists have suggested that these birds are willing to tolerate a parasite every so often because they don’t want to risk accidentally getting rid of one of their own eggs.12. This passage can be most likely found in a ________.A. science surveyB. nature magazineC. zoo advertisementD. travel journal13. What does the underlined word “parasite” in paragraph 2 most probably refer to?A. Animals that work together to raise young.B. Small harmful animals such as worms or mice.C. Animals that can adapt to changing environments.D. Animals which live on or inside other host animals.14. Which of the following is TRUE about the dunnock according to the passage?A. It is colour-blind and therefore cannot identify foreign eggs in the nest.B. It can easily remove cuckoo eggs from the nest because fakes are so bad.C. It is a host bird that is more likely to raise a cuckoo chick than the redstart.D. It is unable to evolve and hence accepts cuckoo eggs that appear in the nest.15. Which of the following can be inferred from the passage?A. Dunnocks may eventually learn to recognise foreign eggs.B. Redstarts seem to be less suspicious compared to dunnocks.C. Cuckoo birds are good at taking responsibility for their own young.D. It is very easy for cuckoos to imitate the colouring of the dunnock’s egg.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。
2019-2020学年长沙市长郡中学高三英语第四次联考试卷及答案第一部分阅读(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ABob and Sue Harvey spent nine years as resident fellows in a dormitory at Sanford and in their bookVirtual Reality and The College Freshman, they write “The Freshman oftenfaces an identity problem during the first semester.” College is a more pressured environment than it used to be, in part because the academic gap between high school and college has increased. Many college freshmen have never had to make independent decisions about sex, drugs and alcohol. Most don’t know how to manage their time or money. They often feel lonely and overwhelmed, resulting in anxiety and depression.Nancy Corbin, director of clinical service for student-counseling (咨询) services at Iowa State University, says her office is seeing a significant increase in requests for counseling from freshmen who are having trouble making the adjustment to college life. She says older teenagers increasingly lack the skills to deal with personal problems that aren’t easily defined or fixed. And they get homesick but have a hard time admitting it.Parents and high schools can make things easier on freshmen by preparing them differently. For example, by teaching them to budget their hours and dollars. The Harveys think high schools should offer a college-life course. “Parents need to focus more on relationship and personal issues and less on how many sheets and towels to take,” they say. Many homesick freshmen think they’ll be regarded as failures if they come home before Thanksgiving. So parents can help by letting them know they’re welcome to return if they feel the need. In the meantime, parents have to find new ways to keep in touch with their college kids. One of the best ways is e-mail. It’s less unpleasant and less expensive than constant phone calls and is more likely to be answered than a handwritten letter.1. Why is the first semester difficult for freshmen in college?A. Because they often fail in exams.B. Because they lack time and money.C. Because they are too homesick to make new friends.D. Because they have to settle personal issues on their own.2. In the last paragraph, it is suggested that ________.A. parents should stop buying anything for their kidsB. parents should develop a good relationship with their kidsC. parents should be taught how to send e-mails to their kidsD. parents should work with high schools in college-life courses3. Which of the following might be the best title for the passage?A. Hard Life of College FreshmenB. Approaches to Trouble in CollegeC. Freshmen’s Adaptation ProblemsD. A Strange Phenomenon in CollegeBIn 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-labelB. treat rare diseasesC. result in sleep issuesD. are medical breakthroughs6. 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.CIf you struggle to fall asleep quickly, you’re not alone! Fortunately, thereare plenty of solutions you can try. With a few changes, you can fall asleep fast every night!Keep your room dark. Turn off all the lights above your head when you go to bed. Any bright light can make you believe it is too early in the day for sleep. If you want to read or write before bed, try using a small book light. Now that blue lights can keep you awake, red ones are a great choice.If you can, keep noise in and around your room the lowest at night. If you have an old clock that ticks loudly and keeps you awake, replace it with a silent one. If you share your home with anyone else, request that they keep noises like talking, music, or TV shows at the lowest while you are trying to sleep. It is difficult to fall asleep if you live near a busy road or hear other boring sounds after bedtime. You could get a white noise machine or play recordings of nature sounds, like waves or whales’ singing. You could also listen to soft, relaxing music.Read a book in bed if you have difficulty in falling asleep. Staying in bed doing nothing when you’re havingtrouble falling asleep may keep you wide awake. While reading in bed may be slightly harmful to your eyes, it can distract (分散) you from your thoughts and help you feel sleepy. But remember to read from a print book rather than something with a screen. The light from electronic screens can keep you awake.Lowering your body temperature helps you sleep, so set the room temperature between 15.5℃-21℃could do the trick.8. What color1 book light should you choose toread before bed?A. Red.B. Blue.C. White.D. Orange.9. What is the author’s attitude towards reading in bed?A. Doubtful.B. Worried.C. Favorable.D. Uncaring.10. What can we inferred from the text?A. Reading on cellphones sometimes helps you fall asleep.B. The lower your temperature while sleeping is, the better.C. Bright lights are better for your reading before going to bed.D. Playing recordings like birds’ singing can improve your sleep.11. How does the author organize the text?A. By givingexamples.B. By asking questions.C. By offering suggestions.D. By listing research results.DElizabeth Spelke, a cognitive psychologist at Harvard, has spent her career testing the world’s most complex learning system-the mind of a baby. Babies might seem like no match for artificial intelligence (AI). They are terrible at labeling images, hopeless at mining text, and awful at video games. Then again, babies can do things beyond the reach of any AI. By just a few months old, they’ve begun to grasp the foundations of language, such as grammar. They’ve started to understand how to adapt to unfamiliar situations.Yet even experts like Spelke don’t understand precisely how babies or adults learn. Consider one of the most impressive examples of AI, Alpha Zero, a programme that plays board games with superhuman skill. After playing thousands of games against itself at a super speed, and learning from winning positions, Alpha Zero independently discovered several famous chess strategies and even invented new ones. It certainly seems like a machineeclipsinghuman cognitive abilities. But Alpha Zero needs to play millions more games than a personduring practice to learn a game. Most importantly, it cannot take what it has learned from the game and apply it to another area.To some AI experts, that calls for a new approach. In a November research paper, Francois Chollet, a well-known AI engineer, argued that it’s misguided to measure machine intelligence just according to its skills at specific tasks. “Humans don’t start out with skills; they start out with a broad ability to acquire new skills,” he says. “What a strong human chess player is demonstrating is not only the ability to play chess, but the potential to fulfill any task of a similar difficulty.”12. Compared to an advanced AI programme, a baby might be better at ________.A playing games B. identifying locations C. labeling pictures D. making adjustments13. What does the underlined word “eclipsing” in Paragraph 3 probably mean?A. Imitating.B. Beating.C. Limiting.D. Promoting.14. According to the text, Francois Chollet may agree that ________.A. AI is good at completing certain assignments.B. AI is likely to gain abilities with less training.C. AI lacks the ability of acquiring specific skills.D. AI performs better than humans in cognitive ability.15. Whichwould be the best title for this passage?A. What is exactly intelligence?B. Why is modern AI advanced?C. Where is human intelligence going?D. How do humans face the challenge of AI?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。
炎德英才大联考长郡中学2023届高三月考试卷(五)5各科试题及答案炎德英才大联考长郡中学2023届高三月考试卷(3三)英语试卷答案,我们目前收集并整理关于炎德英才大联考长郡中学2023届高三月考试卷(3三)英语得系列试题及其答案,更多试题答案请关注我们炎德英才大炎德英才大联考长郡中学2023届高三月考试卷(五)5各科试题及答案 1,我们目前收集并整理关于炎德英才大联考长郡中学2023届高三月考试卷(3三)英语得系列试题及其答案,更多试题答案请关注我们炎德英才大联考长郡中学2023届高三月考试卷(五)5各科试题及答案 1,以下是该试卷的部分内容或者是答案亦或者啥也没有D. They are tall enough to get more sunshine.3434. How did researchers judge how well urb atrees absorb carbon dioxideA. By measuring the trees in Camden.B.By figuring out the carbon they can store.C. By paring with trees in other countries.D. By calculating the amount of carbon dioxide.英语试题参考答案1-5ABCAC6-10BABCC11-15CBBCB16-20BBCCC21-25BACBC26-30DCCAA31-35BCBDC36-40DABEG41-45ADADA46-50ABBDD51-55CABBC14.What can we infer from paragraph 4?A.Rural areas suffer more from heatwaves than cities.B.China has witnessed the worst climate ever in 2022.C.High temperatures have negative effects onagriculture.D.Climate change contributes to the decline in insect species.。
长郡中学2020届高三月考试卷(五)英语得分: ____________木试题卷共10页。
时量120分钟。
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例:How much is the shirt?A. £ 19.15. B。
. £9.1 8. C. £9.15.答案是C.1. What docs the man mean about the cat?A. She likes to stay on her own.B. It is too high for her to jump down.C. The dog's barking frightens her.2. What docs the woman want to buy?A. Blankets.B. Pillows.C. Beds.3. What are the speakers doing?A. Buying clothes.B. Cutting down a tree.C. Making a snowman.4. What does the woman probably mean?A. The man ate something bad earlier.B. They should cat lunch together.C. She feels the same as the man.5. What docs the woman intend to do?A. Join the team.B. Quit the team.C. Continue with the team.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独毎段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。
湖南省长沙市天心区2019-2020年高一上学期第四次月考试题汇编语法填空专题湖南省长沙市长郡中学2020届高一上学期第四次月考英语试题We know that cars are bad for us. Here are five easy ways to improve our environment.Use your legs. In 2014, over 55% of car journeys ①_____________(be) under eight kilometres. Instead of taking short car journeys, we could ②_____________(easy) walk or cycle. Leg power can save your money, keep you fit and help you live ③_____________(long).Use public transport. Up to 90 people can travel in one bus, while ④_____________ same number will need at least 18 cars. Sometimes it can take a little bit longer, ⑤_____________ you can relax, read a book, talk to someone—who knows?Think before you go. Do you really have to go to that shopping centre ⑥_____________ the other side of town? What about the shops around the comer? Before you get into your car, think about whether you really need ⑦_____________(make) that journey.Share cars. If you really have to use a car, share ⑧________________(journey) with someone else. It is much cheaper and kinder to the environment.Take action! If your street is full of heavy traffic, talk to your neighbours about it. Write to the papers. Go to the city ⑨________________(govern). Ask for a speed limit. Do whichever of these things that suit you. Don't just sit around and complain.All quite simple, isn't ⑩________________?【答案】were; easily; longer; the; but; on; to make; journeys; government; it湖南省长沙市培粹实验中学2020届高一上学期第四次月考英语试题Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvious①_______water was to be fundamental to the development of life.②_______many scientists believe is that the continued ③_______ (present) of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made ④_______possible for life to develop.Many millions of years later, the first ⑤_______ (extreme) small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with oxygen,⑥_______ encouraged the later development of early shellfish and all sorts of fish. Next, green plants beganto grow on land. They ⑦_______ (follow )in time by land animals. Some ⑧_______ (be) insects. Others, called amphibians, were able to live on land as ⑨_______as in the water. Later when the plants grew into forests, reptiles appeared for the first time. They produced young entirely by laying eggs. After that, some huge animals, called dinosaurs, developed. They laid eggs too and existed on the earth for more than 140 ⑩_______ (million) years.【答案】1. that2. What3. presence4. it5. extremely6. were7. were followed8. are9. well10. million湖南省长沙市明德中学2020届高一上学期第四次月考英语试题A recent study shows that most adults did household chores (家务) ①__________ (active) when they were young. Most kids today do not do as many household chores as before, ②_____________ same study shows.An expert said, “ Parents today want their kids to spend more time ③____________ things that can bring them money and honour. They have stopped ④____________ (do) the one thing that has proven to bring success. That is doing household chores.”Another study finds that compared with the kids ⑤______________ didn’t do household chores, young adults beginning chores at ages 3 and 4 were more likely ⑥_____________ (succeed). They had better family relationships, did better in school, performed better at work and were more independent.Personal happiness is ⑦_____________ (say) to come from strong relationships. It begins by learning to be kind and ⑧______________(help) to their parents at home.If your kids say they have to skip chores because it is time they ⑨________________ (deal) with their homework, you’d better not let them off the hook. If you do, your child may think grades are more important than caring about others. “ What may seem like small ⑩_________________ (message) at the moment add up to big ones over time.” says an expert. 【答案】1. actively2. the3. on4. doing5. who\that6. to succeed7. said8. helpful9. dealt\should deal10. messages湖南省长沙市湘郡中学2020届高一上学期第四次月考英语试题The strongest sandstorm in recent 10 years ①________(strike) the Chinese capital Beijing on the morning of March the 15th with a visibility (能见度) of less than one kilometer. ②________ (lucky) the city’s meteorological department(气象部门) had issued③________yellow warning in advance and connected departments had made full ④________ (prepare) for the severe sandstorm. People in affected areas had been reminded to close windows and doors ahead of time.⑤________spite of all the great efforts, this sandstorm still caused great inconvenience to local residents’ work and life. People had to travel to work wearing masks or scarves⑥________ (prevent) possible damage to their eyes and respiratory tract(呼吸道). Drivers paid ⑦________ (much) attention to road safety than usual due to poor visibility. In response to the dusty weather, Beijing Daxing International Airport took a series of measures, ⑧________ (affect) a number of flights. What’s more, this sandstorm had a bad effect on the environment.Rome wasn’t built in one day. Protecting the environment is one of the most important things⑨________we human beings stick to forever. After all, only by protecting the environment can we protect⑩________ (we).【答案】1. struck2. Luckily3. a4. preparations5. In6. to prevent7. more8. affecting9. that10. ourselves解析:1. struck 考查时态。
2019-2020学年长沙市长郡中学高三英语第三次联考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AUNUSUAL ATTRACTIONS ON THE WATERBangkokFloating MarketsThere are many floating markets where goods are sold from boats. While modem markets are more popular, floating markets still are huge attractions for local tourism. In Bangkok Floating Markets,Thailand, one of the most popular ones, any visitors can buy local foods and traditional hand-made souvenirs.Bregenzer Festspiele(Opera festival)The Bregenz Festival is held every year from July to August inVorarlberg,Austria. It has the world's largest stage on the water. The performances are different every year but they are usually united by one theme. The decorations(装饰)are very impressive and are worth seeing.Viva, ArtificialIslandArtificial islands are not something new. What makes this island special is that . it is floating. Viva is the largest out of three man-made islands along with Vista and Tera, all situated inSeoul,South Korea. The island weighs 2,000-tons and is technically a buoy(浮标).The island unfortunately is not carbon-neutral(碳中和)but it has solar panels which can generate electricity to power the hall, restaurants and shopping malls. MarinaBayFloating Platform StadiumThis stadium was built as a temporary solution while Singapore National Stadium was rebuilt. Now it is usedfor different sporting events, concerts, and festivals. In particular, it was once used for the opening and closing ceremonies during the 2010 Summer Youth Olympics.1. What can visitors do at Bangkok Floating Markets?A. Performing.B.Boating.C. Shopping.D. Swimming.2. What do you know about Viva?A. It is the biggest island inSouth Korea.B. It has the equipment to harness solar energy.C. It is the largest floating stage on the water.D. It is a man-made island only for low-carbon life.3. Which attraction should you choose to watch a basketball match?A. Bangkok Floating Markets.B. Bregenzer Festspiele.C. Viva, ArtificialIsland.D.MarinaBayFloating Platform Stadium.BTOKYO—Japanese Prime Minister Yoshihide Suga told the media on Monday if any places hosting events of the Tokyo Olympics and Paralympics declare a state of emergency due to the COVID-19 epidemic during the games, the events will continue to beheld but without spectators (观众). With one month to go before the games are due to begin on July 23, Suga is again showing his administration’s determination to hold the Olympic Games as planned, despite so much pressure from various parties urging it tocancel the event.Although the Japanese government regards the Tokyo Olympics as an important opportunity to improve its soft power, the Japanese people’s enthusiasm for the Games has been continuously dented (挫伤) since they were postponed last year. The resurgence (再猖獗) of the novel coronavirus in some places is Japan in recent months has cast a shadow over people’s confidence that the Olympics will not give rise to new clusters (群) of infections, and there are fears that the Games will provide new channels for the virus’ global transmission.Some torchbearers from Japan have withdrawn from the Olympic torch relay in the country. And the latest survey indicates only 34 percent of Japanese people support holding the games as scheduled. Predictably, the Suga administration will do all it can to try to ensure the games go ahead. But it remains to be seen whether it can stand the tests of the uncertainties related to epidemic prevention and control that might happen during the Games.Since it has not yet got the virus under control at home, the people have reasons to question is ability to deal with the prevention and control work when large numbers of participants will be flocking to Japan from around the world in a short time. It is to be hoped that Japan can draw lessons from the organization of epidemic prevention and control work during the ongoing UEFA European Championship, carry out strict epidemic prevention and control measures, and be prepared for emergencies to guarantee the safety and success of the Olympics at this special time.It should be a common wish of the whole world that the Tokyo Olympics can become a stage showing unity and resolve of human beings in their fight against the virus. That willendowthe games with special meaningbeyond sports.4. What is the second paragraph mainly about?A. The virus’ global transmission.B. People’ worry about the infections.C. The resurgence of the novel coronavirus.D. The benefit of holding the Tokyo Olympics.5. How do about one third of Japanese people like holding the games as planned?A. Uncertain.B. Negative.C. Approving.D. Indifferent.6. Which of the following words can replace the underlined word “endow” in the last paragraph?A. Compare.B. Equip.C. Provide.D. Charge.7. What can be the best title for the news report?A. Japan can ensure Olympics go aheadB. Olympics big test for Japanese governmentC. Japanese people’s enthusiasm for the GamesD. Japan to carry out strict epidemic prevention during the GamesCI have a memory of being about five years old, picking up a beautiful grilled(烧烤的)cheese sandwich made for me by my hard —working mother and turning it over to see that theother side was burned. Suddenly what I thought was the perfect sandwich was not so perfect. Mom had tried to hide that fact from me. There was no question; I ate it anyway without complaining. However, that moment has stuck in my mind for many years. Now, at the age of 43 as a mother of two children and as a biology professor where I am routinely the "academic mother" of hundreds of students every year,I find that I believe inThe Grilled Cheese Principle.Here is what I mean Making a grilled cheese sandwich is easy right? But when I think of how many burned grilled cheese sandwiches I have eaten, or I have made myself, I realize that most of the grilled cheese sandwiches I have known have had at least one burned side. The thing is that although it is a ly easy thing to make, I can also easily lose focus, and before long the sandwich is burned. For my mother, the first side was usually perfect and the second side got burned due to her being distracted. For me,I have tended to burn the first side,but then I more carefully monitor the second side.Either way,the grilled cheese sandwich suffers because it has not been given the attention it deservesSo, I have learned that even the simplest task deserves my full attention. When I am multi-tasking, I am doingnone of the tasks well. And when I allow myself to be distracted, I am not in the present moment — not paying attention to the small details of living or enjoying the processSo now, I believe the best way to make a perfect grilled cheese sandwich is to make only one at a time and give it my full attention.8. How did the writer react to the sandwich with burned side?A. She ate it with some complaintsB. She showed no interest.C. She thought it was still perfectD. She was deeply impressed with it9. What doesThe Grilled Cheese Principlemean?A. Even simple things deserve full attentionB. Losing focus makes the sandwich burnedC. Self-made sandwiches are always burnedD. we should make only one sandwich at a time10. Which of the following can we infer from the passage?A. Everything cannot be done well without full attentionB. Moms always like to lie to kids when they have done something wrongC. We can lose focus more easily when we do easy things.D. Multi-tasking can be an obstacle to the achievement of tasks.11. What does the writer mainly want to tell us?A. Nothing is perfectB. Learn to appreciate the burned sandwichesC. Devote yourself to one thing at a time.D. Never do multi-tasksDEarthquakes are a natural disaster—except when they're man-made. The oil and gas industry has forcefully used the technique known as hydraulic fracturing (水力压裂法) to destroy sub-surface rock and liberate the oil and gas hiding there. But the process results in large amounts of chemical-filled waste water. Horizontal drilling (水平钻孔) for oil can also produce large amount of natural, unwanted salt water. The industry deals with this waste water by pumping it into deep wells.On Monday, the US Geological Survey published for the first time an earthquake disaster map covering both natural and “induced” quakes. The map and a report show that parts of the central United States now face a ground-shaking disaster equal to the famously unstable terrain (不稳定地形) of California.Some 7 million people live in places easily attacked by these man-made quakes, the USGS said The list of places at highest risk of man-made earthquakes includes Oklahoma, Kansas, Texas, Arkansas, Colorado, New Mexico, Ohio and Alabama. Most of these earthquakes are ly small, in the range of magnitude (震级) 3, but some have been more powerful, including a magnitude 5.6 earthquake in 2011 in Oklahoma that was connected to waste water filling.Scientists said they do not know ifthere is an upper limit on the magnitude of man-made earthquakes; this is an area of active research Oklahoma has had prehistoric earthquakes as powerful as magnitude 7.It's not immediately clear whether this new research will change industry practices, or even whether it will surprise anyone in the areas of newly supposed danger. In Oklahoma, for example, the natural rate of earthquakes is only one or two a year, but there have been hundreds since hydraulic fracturing and horizontal drilling, with the waste water filling, became common in the last ten years.12. What kind of human activities can cause earthquakes?A. The man-made produced waste water in the factories.B. The process of digging deep wells in those poor areas.C. The advanced techniques used to deal with waste water.D. The oil or gas industry's work connected with the earth.13. What does the underlined word “induced” in paragraph 2 mean?A. Man-made.B. Reduced.C. Newly-built.D. Controlled.14. How much magnitude can man-made earthquakes reach?A. It's been said as small as magnitude 3.B. It has been said as high as magnitude 7.C. It's being studied without a final conclusion.D. It has risen by an average of magnitude 5. 6.15. What is the best title for the text?A. Natural Earthquakes in America Are Disappearing NowB. 7 Million Americans at Risk of Man-Made EarthquakesC. Time for Oil and Gas Industry Change Their Working PracticeD. More Often Earthquakes as Powerful as Magnitude 7 in America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。
2019-2020学年长沙市长郡中学高三英语第四次联考试卷及答案第一部分阅读(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ANo one knows when the first printing press was invented or who invented it. but the oldest known printed text originated in China during the first millennium (千年) AD.The Diamond Sutra (《金刚经》), a Buddhist book from Dunhuang, China during the Tang Dynasty, is said to be the oldest known printed book.The Diamond Sutrawas created with a method known as block printing (雕版印刷), which used boards of hand-carved wood blocks in reverse.It was said that the moveable type was developed by Bi Sheng. He was fromYingshan,Hubei,China, living from 970 to 1051 AD. His method replaced panels of printing blocks with moveable individual Chinese characters that could be reused. The first moveable Chinese Characters were carved into clay and baked into hard blocks that were then arranged onto an iron frame that was pressed against an iron plate.The earliest mention of Bi Sheng’s printing press is in the bookDream Pool Essays, written in 1086 by Shen Kuo, who noted that his nephews came into possession of Bi Sheng’s typefaces (字体) after his death. Shen Kuo explained that Bi Sheng did not use wood because the texture is inconsistent (不一致的) and absorbs wetness too easily.By the time of the Southern Song Dynasty, which ruled from 1127 to 1279 AD, books had become popular in society and helped create a scholarly class of citizens who had the capabilities to become civil servants. Large printed book collections also became a status symbol for the wealthy class.1. When was Bi Sheng’s printing press first introduced in history?A. After Bi Sheng died and his nephews owned his typefaces.B. When books became popular in the Southern Song Dynasty.C. After the block printing was replaced by the moveable type printing.D. WhenThe Diamond Sutrawas printed into a book.2. What can we infer from the passage?A. Shen Kuo made great contributions to printing.B. The moveable type printing was invented earlier than block printing.C. Printed books were hard to get in the Song Dynasty.D. By the Southern Song Dynasty, books had helped people get to higher social positions.3. Why does the author write this passage?A. To show that Buddhism was popular in the Tang Dynasty.B. To introduce the early history of printing.C. To memorize Bi Sheng, developing the moveable type printing.D. To indicate the advantages of moveable type printing.BIn many countries of the world, people can confidently tell youthe meaning of their town or city, but most people who live inManchester,OxfordorBirminghamwould not be able to explain what the name of their city means. The name of every British town and city, however, has a long history.Two thousand years ago, most people living inBritainwere Celts. Even the word “Britain" is Celtic (凯尔特语).Then the Romans arrived and built camps which became cities called “castra". This is why there are so many place names inEnglandwhich end in "-chester" or “-caster"Manchester, for example.The Romans never reachedWalesorScotland, and many placenames there are Celtic. For example,Welsh place names that begin with “Llan" come from the Celtic word for "church".After the Romans leftBritain, it was attacked by the Anglo-Saxons who were from the area of Europe that is nowGermanyandHolland. The names of their villages often ended in “-ham" or “-ton". Some got their names from the leader of the village.SoBirminghamfor example, means "Beormund's village”The Anglo-Saxons were farmers and the landscape was very important to them, so we have villages called Upton (village on a hill)——a good place to build a village and Moreton (“village by a lake”)where floods could make life hard. Place names that end in “-ford" (a place where you could cross a river) also describe the location of Anglo-Saxon villages.Finally, in 1066EnglandbecameNorman—theNormansgave us the place name "grange", which means farm.And how aboutLondon? Experts cannot agree. The Romans called the city Londinium, but they were not the first inhabitants (居民). People once believed that theUnited Kingdom’s capital city got its name from the castle of a King called Lud but this is very unlikely. Our best guess today is that the name comes from a Celtic word meaning a fast-flowing river. Like a number of British place names, its history is lost in time.4. The origin of British place names is unfamiliar to many local people because ofA. the death of local languagesB. the long lost history of the namesC. their lack of interest in itD. the frequent changes to the names5. According to the article,Stratfordis most likely a town .A. on a hillB. near a castleC. beside a riverD. with a church6. Which of the following shows the correct order of the arrival of inhabitants inBritain?A. The Celts—The Romans—TheNormans—The Anglo SaxonsB. The Celts—The Romans—The Anglo Saxons—TheNormansC. The Romans—The Celts—The Anglo Saxons—TheNormansD. The Romans―The Anglo Saxons—The Celts—TheNormans7. What doesLondonmean in Celtic?A. RiverB. LondiniumC. LudD. CastleCRecently, I read about a promotion from a home builder in San Diego where consumers (消费者) could buy a 4,000 square foot house for $1.6 million and get a smaller home bythe developer valued at $400 thousand for free. This sounds like a fantastic deal, but I am alwayswary ofany promotion labeled (给……加标签) with“buy one get one free”, and here is why.Oftentimes, “buy one get one free” ends up being “buy two at the regularprice”. For example, I often see “buy one get one free” ads for orange juice at the supermarket, but the first box always costs over $5.00. At the same time, the juices not in the promotion are selling for $2.50 to $2.99 a box.Another problem with “buy one get one free” is that oftentimes you do not need the second item. I only consume one gallon of milk every two weeks. If I were talked into buying a second gallon in a “buy one get one free” promotion, then the second gallon would go bad before I have time to consume it. That creates waste instead of savings.In the case of theSan Diegodeveloper, so far they have received one offer on their expensive houses, but the buyer does not want the cheaper house for free. Instead, he wants the value of the smaller home taken away from his purchase price. I think this guy is quite wise because he saw right through the marketing of “buy one get one free”.Finally, it is up to you to see how much you need and how much you are willing to spend. Knowing theregular price of things also helps you in deciding whether a “buy one get one free” promotion is truly a great deal.8. What does the underlined part “wary of” in Paragraph 1 probably mean?A. annoyed atB. careful aboutC. familiar withD. puzzled about9. Why does the author mention milk in Paragraph 3?A. To show that there are many promotions of food.B.To suggest that people think twice before they shop.C. To prove that the second item isn’t always as good as the first one.D. To show that people often buy more than they need in the promotion.10. What does the house buyer want to do?A. Buy the smaller house only.B. Get the smaller house for free.C. Buy the larger house for $1.2 million.D. Buy both the larger and smaller houses for $2 million.11. How does the author organize the text?(P: Paragraph)A. B. C. D.DA new study suggests drinking coffee as soon as someone wakes up from a poor night’s sleep greatly affects metabolism(新陈代谢) and blood sugar control.In the study, published in theBritish Journal of Nutrition, UK researchers let 29 healthy men and women take part in three different overnight experiments. In the first two scenes, participants were given a sugary drink uponwaking—first from a normal night’s sleep, and then again after a poor night’s sleep during which they were woken up for five minutes every hour. In the third, their sleep was similarly disrupted, but they were given a strong black coffee 30 minutes before consuming the sugary drink.Blood samples from participants were taken following the sugary drink, which mirrored the calories of atypical breakfast, in each experiment. Results showed that one night of disrupted sleep did not worsen the participants’ blood sugar responses at breakfast when compared to a normal night of sleep. However, strong black coffee consumed before breakfast increased the blood sugar response by around 50 percent.By drinking such kind of drink after breakfast, UK researchers found that our bodies’ ability to break down our food healthily is completely improved. Examining the effects of broken sleep and morning coffee across a range of different metabolic markers, scientists at the University of Bath found that, while one night of poor sleep had a limited effect on metabolism, drinking coffee before breakfast could have a negative effect on blood sugar control.“We know that nearly half of us will wake in the morning and, before doing anything else, drink coffee—the more tired we feel, the stronger the coffee is. This simple study is important and has far-reaching health influences, and it indeed moves some coffee drinkers’ heartstrings. As up to now we have had limited knowledge about what this is doing to our bodies, in particular for our metabolic and blood sugar control, so we have a long way to go.” said Professor James Betts, co-director of the Centre for Nutrition, Exercise and Metabolism at the University of Bath.12. How did UK researchers get the result of the experiment?A. By making comparisons.B. By consulting journals.C. By questionnaire.D. By assumption.13. What can we learn from the experiment?A. One night of poor sleep surely affects blood sugar.B. Drinking coffee after breakfast does harm to health.C. Having strong drinks has a good effect on metabolism.D. Drinking coffee at different time has different effects on health.14. What does James Betts think of the study?A. It makes no sense.B. It remains to be continued.C. It is limited and blind.D. It is particular and explicit.15. What can be the best title for the text?A. How Much Coffee to Drink MattersB. Does Coffee Really Wake Up an Appetite?C. How Does Drinking Coffee Affect One’s Sleep?D. Drinking Coffee before Breakfast Harms Metabolism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。
长郡中学2019-2020 学年度高一第二学期5月联考 英语试卷 时量:120分钟 满分:100分 得分: _________ 第一部分听力(共两节,满分10分) 做题时,先将答案标在试卷上。录音内容结束后•你将有两分钟的时间将试卷上的 答案转涂到答题卡上. 第一节(共5小题;每小题0.5分,满分2.5分) 听下面5段对话.每段对话后有一个小题,从题中所给的A、B、C三个选项中选岀最佳选项.听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。 每段对话仅读一遍. 例:How much is the shirt? A. £ 19.15. B. £9.18. C. £9.15. 答案是C。. 1. What are the speakers mainly talking about? A. The Yangtze River. B. The longest river in the world. C. The second longest river in China. 2. What does the woman mean? A. She has a fever. B. The plants are delicate. C. It is really hot outside. 3. What will the woman do on the weekend? A. Go to the concert. B. Pay a visit to Professor Li. C. Mark some papers. 4. Who is crying? A. A baby. B. A cat. C. A mouse. 5. Which position is the man looking for? A. A position in the advertising department. B. A position in the marketing department. C. A position in the sales department. 篇二节(共15小题;小题0. 5分,满分7. 5分) 听下面5段对话或独白.每段对话或独白后有几个小题,从题中所给的A、B、C三 个选項中选出最佳选项.听每段对话戒養白前,你将有时间阅读各个小题,每小题5秒 钟;听完后,各小题将给出5秒钟的作答时间.毎段对话或独白读两遍。 听第6段材料,回答第6、7題. 6. Where does the conversation probably take place? A. In a garden. B. At a museum. C. At a university. 7. What's Lang Shining's famous painting about? A. Horses. B. A bridge. C. Water lilies. 听第7段材料,回答第8、9题。 8. What day is it today? A. Monday. B. Wednesday. C. Friday. 9. Why doesn't the woman borrow the man's guitar? A. It's right-handed. B. It's left-handed. C. It's second-hand. 听第8段材料,回答第10至12题。 10. What kind of music is the album 1989? A. Pop music. B. 80s music. C. Country music. 11. How many copies of 1989 have been sold in the US? A. About 1.2 million. B. About 5.5 million. C. About 8.6 million. 12. What did the video for Blank Space win? A. Video of the Year. B. Best Music Video. C. Best Female Video. 听第9段材料,回答第13至16題. 13. How many books can a student borrow from the library at most per day? A. Three. B. Five. C. Ten. 14. Why can't the boy borrow the books now? A. He has not returned an overdue book. B. He has been fined by the library before. C. He has left his student ID card behind. 15. Why does the boy need to borrow the books? A. For a friend. B. For a paper. C. For copies. 16. What does the woman suggest the boy do? A. Pay the fine now. B. Call his friend. C. Copy what he needs. 听第10段材料,回答第17至20题。 17. Which part of the moon did the rocket land on? A. The "dark side". B. The closest side to Earth. C. A previously explored side. 18. Why did the scientists bring plants to the moon? A. To support life from Earth. B. To plant them in the soil there. C. To study how the environment there affects them. 19. How long will the vehicle's task last? A. About three months. B. About one year. C. About four years. 20. What does the space agency probably think about the space project so far? A. It may fail. B. It's very successful. C. It's a little behind schedule. 第二部分 阅读理解(共两节,满分30分) 第一节(共10小题;每小题2分,满分20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。 A We take showers and use the toilet every day to get rid of bodily waste. Our brains also need to take a bath every day. How can they do it? A 2013 study found the answer. Researchers at the US University of Rochester studied the brains of mice and discovered that they cleaned themselves while the mice slept. A kind of fluid体)in the brain, called cerebral spinal fluid(CSF,脑脊液), was found to increase dramatically(显著地)during sleep, washing away waste proteins that had been building up between brain cells in waking hours. "This study shows that the brain has different functional states when asleep and when awake," Maiken Nedergaard, the lead researcher, told NBC News. It also explains why we can't seem to think clearly after a sleepless night while a good night's sleep leaves us feeling sharp and refreshed. Now a new study, published on Oct. 31 in Science, digs a little deeper into our brains' self-cleaning procedure. Instead of mice, this time humans were the test subjects. Researchers at Boston University, US, monitored the brainwaves of 13 healthy adults who were sleeping, using accelerated FMRI(核磁共振成像),which is capable of recording faster changes inside the brain than a regular FMRI machine. They found that every 20 seconds, blood flowed out of the brain, making room for a large amount of CSF to come in and "clean". This cycle coincided with(与....一致)the rhythm of the brain's slow waves—an electrical activity that happens when we’re in a deep sleep. It's still unknown how these brain activities are connected. But the mere fact that they are connected is exciting enough, since it allows researchers to piece together (拼凑出)possible new explanations for misunderstood diseases. For example, slow-wave sleep has been proven to play a role in strengthening our memories. This may explain why people with Alzheimer(()阿尔茨海默病)often have fewer and weaker slow brainwaves. Based on this new study, there could be one more explanation for diseased brains: They are not clean. Nedergaard, leader of the 2013 study, is also excited about the new findings. "Maybe the most important take-home message is that sleep is a serious thing," she told Scientific American. "You really need to sleep to keep a healthy brain because it links electrical activities to a practical 'housekeeping' function.” 21. What did the researchers find when they studied the brains of mice? A. CSF in their brains decreased when the mice slept. B. More waste proteins were produced in their brains during sleep. C. CSF carried away waste proteins in their brains during sleep. D. The more CSF was in their brains, the fewer proteins were there. 22. What did the researchers discover when they monitored human brainwaves? A. It took 20 seconds for CSF to clean brains. B. Brains were "cleaned" when blood flowed out. C. The rhythm of the brain was slower than that of CSF. D. The brains worked more slowly when asleep. 23. What are the last three paragraphs mainly about?