2021年考研英语一试卷真题(后附答案详解)

欢迎您阅读并下载本文档，本文档来源于互联网，如有侵权请联系删除！我们将竭诚为您提供优质的文档！2021 年考研英语一真题原文及答案解析完好版 SectionUse of English Directions:Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10 points)Could a hug a day keep the doctor away?The answer may be a resoundingyes!_1helping you feel close and_2to people you care about,it turns out that hugs can bring a_3of health benefits to your body and mind.Believe it or not,a warm embrace might even help you_ 4 getting sick this winter.In a recent study_5over 400 healthy adults,researchers from Carnegie Mellon University in Pennsylvania examined the effects of perceived social support and the receipt of hugs_ 6the participants susceptibility to developing the common cold after being_ 7to the virus.People who perceived greater social support were less likely to come_ 8with a cold,and the researchers_ 9that the stress-reducing effects of hugging_10about 32 percent of that beneficial effect._11among those who got a cold,the ones who felt greater social support and received more frequent hugs had less severe_12.Hugging protects people who are under stress from the_13 risk for colds thats usually_ 14with stress,notes Sheldon Cohen,a professor of psychology at Carnegie,Huggingis a marker of intimacy and help_15the feeling that others are there to help_16difficulty.Some experts_ 17 the stress-reducing,health-related benefits of hugging to the release of oxytocin,often calledthe bonding hormone_ 18it promotes attachment in relationships,including that between mothers and their newborn babies.Oxytocin is made primarily in the central lower part of the brain,and some of it 欢迎您阅读并下载本文档，本文档来源于互联网，如有侵权请联系删除！我们将竭诚为您提供优质的文档！is released into the bloodstream.But some of it_19in the brain,where it_20mood,behavior and physiology.1.ABesides BUnlike CThroughout DDespite 2.Aequal Brestricted Cconnected Dinferior 3.Aview BHost Clesson Dchoice 4.Aavoid Bforget Crecall Dkeep 5.Acollecting Baffecting Cguiding Dinvolving 6.Aon Bin Cat Dof 7.Adevoted Battracted Clost Dexposed 8.Aalong Bacross Cdown Dout 9.Aimagined Bdenied Cdoubted Dcalculated 10.Aserved BRestored Cexplained Drequired 11.AThus BStill CRather DEven 12.Adefeats Bsymptoms Cerrors Dtests 13.AHighlighted Bincreased Ccontrolled Dminimized 14.APresented Bequipped Cassociated Dcompared 15.Aassess BGenerate Cmoderate Drecord 16.A in the name of Bin the form of Cin the face of Din the way of 17.Aattribute Bcommit Ctransfer Dreturn 18.Aunless Bbecause Cthough Duntil 欢迎您阅读并下载本文档，本文档来源于互联网，如有侵权请联系删除！我们将竭诚为您提供优质的文档！19.Aremains Bemerges Cvanishes Ddecreases 20.Aexperiences Bcombines Cjustifies Dinfluences SectionReading Comprehension Part A Directions:Read the following four texts.Answer the questions below each text by choosing A,B,C or D.Mark your answers on the ANSWER SHEET.40 points Text 1 First two hours,now three hours this is how far in advance authorities are recommending people show up to catch a domestic flight,at least at some major U.S.airports with increasingly massive security lines.Americans are willing to tolerate time-consuming security protocols in return for increased safety.The crash of Egypt Air Flight 804,which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why.But demanding too much of air travelers or providing too little security in return undermines public support for the process.And it should:Wasted time is a drag on Americans economic and private lives,not to mention infuriating.Last year,the Transportation Security Administration(TSA)found in a secret check that undercover investigators were able to sneak weaponsboth fake and realpast airport security nearly every time they tried.Enhanced security measures since then,combined with a rise in airline travel due to the improving economy and low oil prices,have resulted in long waits at major airports such as Chicagos OHare International.It is not yet clear how much more effective airline security has becomebut the lines are obvious.Part of the issue is that the government did not anticipate the steep increase in 欢迎您阅读并下载本文档，本文档来源于互联网，如有侵权请联系删除！我们将竭诚为您提供优质的文档！airline travel,so the TSA is now rushing to get new screeners on the line.Part of the issue is that airports have only so much room for screening lanes.Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees,though the airlines strongly dispute this.There is one step the TSA could take that would not require remodeling airports or rushing to hire:Enroll more people in the PreCheck program.PreCheck is supposed to be a win-win for travelers and the TSA.Passengers who pass a background check are eligible to use expedited screening lanes.This allows the TSA to focus on travelers who are higher risk,saving time for everyone involved.TSA wants to enroll 25 million people in PreCheck.It has not gotten anywhere close to that,and one big reason is sticker shock:Passengers must pay$85 every five