2021届天津市复兴中学高三英语第四次联考试题及答案.pdf
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1、2021 届天津市复兴中学高三英语第四次联考试题及答案 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 A Bird migration is described as the regular,seasonal movement of bird populations from one place to another and back again.The longer days and rich food of the northern summer provide great
2、er chances for birds to feed their young.The longer daylight hours and enormous food resources allow birds to lay larger eggs than those of related non-migratory species that remain in the tropics all year round.As the days shorten in autumn and the breeding period is over,the birds return to warmer
3、 regions where the available food supply differs little with the seasons changing.The advantages of migration make up for the high stress,physical exertion(消耗),and other risks of the migration.Day length is the primary environmental factor that encourages birds to prepare for migration.They have an
4、increased appetite which results in weight gaining,giving them the fat reserves that provide energy for their migratory flight.They also show more activity at night,which is when most birds migrate.While the length of day is the primary reason for migration,birds also respond to temperature changes.
5、For example,if a spring is late and the temperature is lower than normal,birds delay migration;if a spring is early,birds also begin migration early.The timing of the migratory cycle must allow birds to arrive on the breeding site so that there is time tobuild a breeding place,mate,lay the eggs,and
6、hatch the young before the rich food is available to feed the young in the nest.Similarly,if birds wait until the climate in their northern breeding grounds becomes tolerable(可忍受的),there will be no time togain the necessary weight that provides the energy needed for their southbound migration.1.Why
7、do birds migrate to the north in spring?A The temperature in the south has risen.B.They like traveling and enjoy the journey.C.The summer there is warmer than that in the south.D.The environment there is more suitable for them to feed their baby birds.2.What are the two factors that cause birds to m
8、igrate?A.Day length and food supply.B.Night length and high stress.C.Temperature changes and daylength.D.Food supply and temperature changes.3.Which can be the best title for the text?A.Birds Life B.Birds Migration C.Birds Breeding Habits D.Birds Living Environment B A world in which extinct creatur
9、es could be brought back to life came a step closer yesterday.Australian scientists have managed to extract a gene from a preserved sample of a Tasmanian tiger and make it active.Thebreakthroughhas left them dreaming that one day they will be able to recreate the animal,which died out more than 70 y
10、ears ago.And if it can be done with the Tasmanian tiger,it may also be possible to resurrect(复活)creatures that have been extinct for far longer.“There used to be a time when extinction meant forever,but no more,”said Professor Mike Archer.“We are now able to seriously challenge whether those animals
11、 that have gone for ever.What has been achieved is a very important step in bringing back those animals that are extinct.And while I think that technically it is still pretty difficult at the moment,we can now see the possibilities.Im personally convinced that the Tasmanian tiger will be brought bac
12、k to life in my lifetime.”The breakthrough came after nine years of experiments by scientists at the University of Melbourne,who extracted a gene from one of several tigers preserved in alcohol in a Melbourne museum.They removed the equivalent gene from a mouse embryo implanted the tiger gene and th
13、en watched as the mouse continued to grow normally,suggesting the tiger gene had been activated.Team leader Dr.Andrew Pask said it was the first time DNA from an extinct species had been used to“induce(引起)a functional response in another living organism”.However,the animals entire gene structure wou
14、ld have to be revived in the same way to even begin the possibility of bringing the Tasmanian tiger back from the dead.Mick Mooney,a wildlife officer ofthe Tasmanian Government,was worried that such developments could encourage peoples indifference to the protection of endangered species.“If people
15、think that we can bring animals back to life after theyve gone,they will start saying that there is nothing to worry about because we can fix it up later.”4.What does the underlined word“breakthrough”in the l paragraph refer to?A.Scientists have recreated new animals.B.Scientists have resurrected en
16、dangered animal.C.It has turned out that some creatures would not go extinct.D.A tiger gene has been extracted successfully and activated.5.Scientists are carrying out the experiments in order to _.A.bring extinct animals back to life B.transplant the genes of tigers into other animals C.find out wh
17、at factors lead to the animals extinction D.find a new way to extract animals DNA 6.Mike Archer thinks that _.A.scientists now have no technological difficulty reconnecting extinct animals B.itll be a century or so before a Tasmanian tiger walks on the earth again C.humans have come closer in reconn
18、ecting extinct animals D.reconnecting extinct animals is impossible 7.We can learn from Mick Mooncys words that_.A.he thought it unnecessary to worry about endangered animals B.his opinion is in contrast with that of the Tasmanian Government C.he thought people should be encouraged to protect endang
19、ered animals D.he is concerned that bringing extinct animals back to life may have a negative effect C Its 13:30 and 28-year-old Marten Pella s smart phone starts pinging,a signal that its time for us to stop working around his living room table and instead start our workout routine together.A carto
20、on character wearing bright red shorts on video begins instructing us to do star-jumps and sit-ups around his apartment.Pella,a research assistant at Stockholm University,is part of the Hoffice movement,which invites workers-freelancers(自由职业者)or full-time employees who can do their jobs remotelyto w
21、ork at each others homes to increase productivity and enjoy an active social life.Those attending Hoffice events advertised on Facebook are typically asked to work silently in 45-minute blocks,before taking short breaks together to exercise,or simply chatting over a coffee.In addition,each participa
22、nt shares daily objectives with the rest of the group upon arrival,and is invited to report back on whether or not they have achieved them at the end of the day.“Often when I am alone,I can work focused for a couple of hours but then Im easily distracted(分心).The help of others makes me so much more
23、disciplined.”says Pella,who attends Hoffice events as both a guest and a host.Lunches mean networking and connecting with new contacts.“People are coming from really different areas and have different professions so there can be really interesting discussions,”he says.The Hoffice movement has grown
24、quickly since it was founded in 2014 by Swedish psychologist Christofer Franzen,now 37.He had been giving lectures on the benefits of collective(集体的)intelligence,but realised he was spending most of his own time working alone at his kitchen table.“I wanted to test more structured home co-working wit
25、h friends in similar situations,”he says.Franzen says that holding events in houses and apartments creates a unique atmosphere,because theres a sense of community and desire to contribute.Hes looking for ways to expand the social value of Hoffice,by matching up members with relevant skills to share
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