北京地区成人本科学士学位英语统一考试真题Word格式文档下载.docx

北京地区成人本科学士学位英语统一考试真题Word格式文档下载.docx

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Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandblackenthecorrespondingletterontheAnswerSheet.

Passage1

Questions1to5arebasedonthefollowingpassage:

Isthat6a.m.workoutgettinginthewayofgoodsleep?

Don’tthinkyourfatcellswon'

tnotice.AnewstudypublishedinTheAnnalsofInternalMedicine（amedicaljournal）findsthatinadequateshut-eyehasaharmfuleffectonfatcalls,reducingtheirabilitytorespondtoinsulin（胰岛素）byabout30percent.Overthelong-term，thisdecreasedresponsecouldset-thestagefortype-2diabetes（amedicalconditioninwhichsomeonehastoomuchsugarinhisorherblood）,fattyliverdiseaseandweightgain.

Thestudyaddstoagrowingbodyofevidencethatthere’s“anintimaterelationshipbetweentheamountofsleepwegetandourabilitytomaintainagood，healthybodyweight”sayssleepexpertHeleneEmsellem，directoroftheCenterforSleepandWakeDisordersinChevyChase，Maryland.（76）ButAmericansdon’tseemtobegettingthemessagethatweneedseventoninehourspernight.Morethan1in5ofus，accordingtoareportformtheCentersforDiseaseControlandPrevention，isgettingsixorfewerhoursofsleeppernight，onaverage.

SohowdidresearchersstudyfatcellsintheAnnalspaper?

MatthewBradyoftheUniversityofChicagoandagroupofcolleaguesselectedandpersuadedsevenvolunteerstotakepartintheresearchproject.Theywereallyoung，thinandhealthyandagreedtosleepforeightnightsinasleeplab.“Forfournightstheywereallowedtostayinbedfor8.5hoursanight，”saysBrady.Then，amonthlater，theycamebackforfouradditionalnights—butthistimetheywereallowedjust4.5hoursofsleeppernight.Andaftereachvisit，researchersgotasampleoftheirfat.（77）Bradyexplainsthatthefatcellsrespondedsignificantlytothelossofsleep.“Iwasverysurprisedtobehonest，”hesays.

Badthingscanhappenwhenfatcellsbecomelessresponsivetoinsulin.“Fatcellsareactuallyyourfriend，”hesays.“They’retheretostorelipids（血脂）.”Whenlipidsstayinsidethecells，yourbodycanutilizethefatwhenyou’reexercisingorsleepingorgoingaboutyourday.“However，whenfatcellsstarttobecomeinsulinresistant，thelipidsstarttoleachoutofthefatcellsandriseinthebloodstream，”Bradysays.

1.Accordingtothepassage，lackofthesleepforalongwhilecanprobablyleadtoallofthefollowingEXCEPT______.第一段最后一句

A.heartdiseaseB.weightgainC.diabetesD.liverdisease

2.Themainideaofthethirdparagraphis______.第一句

A.howtowriteamedicalresearchpaperB.howtoavoidsleeploss

C.howtheresearchwasconductedD.howtoconductamedicalexperiment

3.Whatdoestheword“leach”inthelastparagraphprobablymean?

A.LeapB.Lead.C.Lead.D.Leak.泄露

4.WhichofthefollowingisNOTTRUEaccordingtothepassage?

A.Wewillbeintroubleifourfatcellsbecomelessresponsivetoinsulin.

B.Moreandmorestudiesaredonetostudythelinkbetweensleepandweight.

C.Morethan20%ofAmericansarenetgettingenoughsleep.

D.Fatcellsaretheretohelpusmaintainagoodhealth.

5.Whichofthefollowingisanappropriatetitleforthispassage?

A.PoorSleepMayLeadtoTooMuchStoredFatandDisease

B.SleepExpertsHadExcitingFindingsinaFatStudy

C.AmericansShouldHaveMoreThanSixHoursofSleep

D.BadThingsHappenifFatCellsBecomeOurFriend

这篇短文讲睡眠的重要性，不足的睡眠会引起种种不良的后果。

76句的翻译是：

但是美国人似乎仍不明白：

我们每晚需要7至9小时的睡眠。

77句的翻译是：

布莱德解释说：

脂肪细胞对睡眠的减少会产生强烈的反应。

1至5题的答案是：

ACDDB

Passage2

Questions6to10arebasedonthefollowingpassage:

Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfallsto-30℉andthesunneverrises.Theoceanissurroundedbyfrozenground.Therearefewpeopleortrees,buttopolarbears,theArctic（北极）ishome.

（78）Polarbearshavethickfur，bigpawsandotherfeaturesthatmakethemwell

preparedforlifeintheirtoughenvironment.Infact，theyneedtheArcticseaiceforsurvival.Butclimatechangeiscausinglargerandlargerareasofsummerseaicetomelt（融化）.Expertssaythatifwarmingpatternscontinue，theArcticcouldbefreeofsummerseaiceby2050.Theymaycausetwo-thirdsoftheworld’s20,000polarbearstobegonebythentoo.

Polarbearscan’tsurviveforlongonland.Sealsaretheirmainsourceoffood.Theonlyplacewherepolarbearscanhuntsealsisontheice.（79）Althoughthesebearsarestrongswimmers,theyarenomatchforlightningswiftsealsinthewater.Apolarbearhasbrilliantlycleverstrategiestoovercomethisdisadvantage.Inwinterthebearwaitsmotionlessbesideaseal’s