2021届中山市板芙镇板芙中学高三英语上学期期末考试试卷及参考答案.pdf
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1、2021 届中山市板芙镇板芙中学高三英语上学期期末考试试卷及参考答案 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 A If 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
2、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
3、 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 b
4、etween 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 anteri
5、or 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 trainingsuch as learning to play magic tricks or taxi drivers learning the map of Londoncan increase grey matter densities(密度)in
6、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
7、 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 ones
8、 own B.at no time C.at the same time D.by accident 2.All of the following are possible effects of multitasking EXCEPT_.A.saving time B.a shortened attention span C.lower grades at school D.depression and anxiety 3.Which ofthe following can be the best title of this passage?A.Media multitasking is be
9、coming more popular B.Multitasking shrinks the brain C.Multitasking may shorten attention span D.People are worried about their memories.B The history of the flying car is almost as old as that of powered flight itself.It started with the Curtiss Autoplane of 1917,an awkward-looking machine with rem
10、ovable wings.It never left the ground.Later machines made it into the skies but failed to take off commercially.Money is now pouring into flying taxis.On March 30th Lilium,a German company that develops them,announced a merger with SPAC,an acquisition company that values it at$3.3 bn-a sign that inv
11、estors think the business will fly.Thanks to better batteries and lightweight materials,some of them are ready to carry passengers.Up to 300 firms are working on short-range battery-powered craft that take off and land vertically.Carmakers,tech companies and others are investing money into the field
12、.The government isoffering a glide pathto certification.Americas Federal Aviation Administration is engaged in the process with around 30 firms,says Natasha Santha of LEK,a consulting company.Midway between a cab and a helicopter,flying taxis have distinct advantages over both.Quiet electric motors
13、allow them to operate frequent services.They require only a patch of concrete to land,unlike noisy helicopters,which face severe operating restrictions in most cities.They can fly four or five times faster than a cab can drive and do not get stuck in traffic.Prices can be kept low by ride-sharing.Jo
14、by,based inCalifornia,says its five-seater machine will enter commercial service in 2024.The firm calculates the initial cost of around$4 per person per mile may soon fall by 25%.A trip fromManhattanto JFK airport would then cost$30-40 per passenger.The real revolution will come when full autonomy t
15、akes out the cost of a pilot.Archer hopes to run such aircraft by 2028.They face fewer obstacles in the air than earth-bound cars do on the road;airliners mostly fly on autopilot as it is.Still,as one industry insider puts it,it is probably best to accustom passengers and regulators to airborne taxi
16、s before getting rid of the driver.4.What can we learn from Paragraph 1?A.The flying car can date back to the 1920s.B.Investors see the potential of the business of the flying car.C.The flying car never left the ground successfully in history.D.A German company has launched a new flying car into the
17、 market.5.What does offering a glide path in Paragraph 2 probably refer to?A.Giving the green light.B.Providing timely assistance.C.Presenting legal guidance.D.Conducting strict management.6.Which of the following is the strength of flying taxis?A.Costing as little as cabs.B.Saving passengers from t
18、he traffic jam.C.Reducing air pollution.D.Having no operating restrictions.7.What can be inferred about the flying taxis from the last paragraph?A.They will develop faster than cars.B.Passengers will quickly get used to taking them.C.The regulators will take measures to promote them.D.Autopilot flyi
19、ng taxis will probably replace those with pilots.C The herd of elephants moving north after leaving the Xishuangbanna National Nature Reserve in Yunnan province has drawn widespread public attention,with tens of millions of people following its movement on TV programs and social media platforms.But
20、this is not because its the first time wild Asian Elephants have wandered away from their habitat and headed northward,but for only this time the herd has traveled more than 400 kilometers as far as Kunming.Photographs,videos and stories of the herds movement have sparked widespread discussions even
21、 overseas.However,there is a need to go behind the“cute photos”and the seemingly“fantastic”event and identify the reasons why wild elephants are leaving their habitat,and find ways to establish harmonious human-animal relationship within habitats and the surrounding forests and human settlements.It
22、is important to scientifically mark the limits of the habitats for elephants and other animals in Xishuangbanna and elsewhere in the country for ecological reasons as well.Planting trees is a key and fundamental step toward restoration of nature.Yet long-term investment and a more scientific approac
23、h are needed to maintain the remaining forests as well as to extend the forest cover and strengthen conservation.Nevertheless,tree cover alone doesnt mean a suitable habitat for all animals,for different species need different types of vegetation to survive and breed.The elephant herd in Yunnan is a
24、 reminder that we have to scientifically conserve the existing forests and turn them into suitable habitats for different species of animals and birds,which will ultimately benefit humans.More ambitious targets should be set to rebuild or improve the food chain,and measures taken to ensure forest re
25、sources help wildlife flourish,in order to establish a harmonious human-animal relationship.Forests around the globe are still shrinking,particularly those in tropical and developing countries.The next decade therefore will be extremely important for the worlds forests and wildlife,and China can pla
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