北京大学16春 大学英语3 第5组作业答案

北京大学16春大学英语3第5组作业答案北京大学16春大学英语3第5组作业答案北京大学16春大学英语3第5组作业答案资料仅供参考文件编号：2022年4月北京大学16春大学英语3第5组作业答案版本号：A修改号：1页次：1.0审核：批准:发布日期：作业ID：587971.HaveyouevervisitedtheSummerPalace，_____therearemanybeautifulhalls,ridgesandahugelake?A.A.whichB.B.thatC.C.whereD.D.when2.Mr.Obamawillgiveaspeechonthecurrentsituationatthemeeting_____nextweekinBeijing.A.A.toholdB.B.heldC.C.holdingD.D.tobeheld3.Itwasinasmallvillageinthesouth_____hespenthischildhoodandmethislife-longfriend—thelocalschoolmaster.A.A.whereB.B.whenC.C.whichD.D.that4.Thecarhalfwayfornoreason.A.A.brokeoffB.B.brokedownC.C.brokeupD.D.brokeout5.Thepolicethathecommittedaseriesofcrimesinthenorthofthecity.A.A.swelledB.B.submittedC.C.surveyedD.D.suspected6.Themanagerlosthisjustbecausehissecretarywastenminuteslate.A.A.moodB.B.temperC.C.mindD.D.passion7.Wegaveoutacheerwhentheredroofofthecottagecameview.A.A.fromB.B.inC.C.beforeD.D.into8.TodayMrsSmith_____herselfinwhitelikeanurseatthegardenparty.A.A.woreB.B.putC.C.sentD.D.dressed9.Inroadrulestheredlightisa______fortraffictostop.A.A.signB.B.sightC.C.siteD.D.size10.Ican_____youforyourrudemannersbutyoumustapologizeinpublic.A.A.forbidB.B.forgetC.C.forecastD.D.forgive11.GeneralBlairhadbeeninthearmy_____for35yearswhenheretiredfromthenavy.A.A.serviceB.B.workC.C.jobD.D.homework12.Lindaisquitedifferent_____hersisterincharacter：shelikesfriendsandgoesoutalotwhilehersisteralwaysstaysaloneathome.A.A.toB.B.fromC.C.atD.D.on13.Jimwasabsentfromschoolforthewholeweek_____abadcold.A.A.becauseofB.B.inadditiontoC.C.accordingtoD.D.infrontof14.Somepeopleliketo_____asmallsumofmoneyincaseofurgentneed.A.A.dealwithB.B.useupC.C.setasideD.D.takeoff15.Mr.Smithfeelsgreatly_____withhisson’sperformanceinschoolasheisalwaysthetopofhisclass.A.A.disturbedB.B.worriedC.C.distressedD.D.satisfied16.改错请在以下句子划线部分中，挑出错误的选项。Theyaregoingtohavetheservicemantobeinstalledanelectricfanintheofficetomorrow.A.A.aregoingtoB.B.haveC.C.tobeinstalledD.D.in17.Onlyunderspecialcircumstancesfreshmenarepermittedtotakemake-uptests.A.A.underB.B.circumstancesC.C.freshmenareD.D.totake18.It’salready5o’clocknow.Don’tyouthinkit’sabouttimewearegoinghome?A.A.It’sB.B.o’clockC.C.Don’tyouD.D.aregoing19.Despitethewonderfulactingandwell-developedplotthethree-hours’moviecouldnotholdourattention.A.A.DespiteB.B.well-developedC.C.thethree-hours’D.D.holdourattention20.Peopleappreciatetohaveworkedwithhimbecausehehasagoodsenseofhumor.A.A.tohaveworkedB.B.becauseC.C.agoodsenseD.D.humor21.Itseemslikeeverydaythere’ssomenewresearchaboutwhetherourfavoritedrinksaregoodforus.Oneday,sciencesaysaglassofredwineadaywillhelpuslivelonger.Thenextday,maybenot.Itseemsjournalistsareprettyinterestedinwineresearchandthesamemightbesaidforcoffee.Now，therehasbeenalotofresearchintowhethercoffeeisgoodforourhealth.“Theresultshavereallybeenmixed,”admitsNealFreedmanwholedthecoffeestudyandpublishedhisfindingsinamedicaljournalrecently.“There’sbeensomeevidencethatcoffeemightincreasetheriskofcertaindiseasesandthere’salsobeenmaybemorerecentevidencethatcoffeemayprotectagainstotherdiseasesaswell.”Freedmanandhiscolleaguesundertookthebiggeststudyyettolookattherelationshipbetweencoffeeandhealth.Theyanalyzeddatacollectedfrommorethan400,000Americansages50to71participatinginthestudy.“Wefoundthatthecoffeedrinkershadamodestlylowerriskofdeaththanthenon-drinkers，”hesaid.Here’swhathemeansby“modestly”：thosewhodrankatleasttwoorthreecupsadaywereabout10percentor15percentlesslikelytodieforanyreasonduringthe13yearsofthestudy.Whentheresearcherslookedatspecificcausesofdeath,coffeedrinkingappearedtocuttheriskofdyingfromheartdisease,lungdisease,injuries,accidentsandinfections.Now,Freedmanstressedthatthestudydoesn’tprovecoffeecanmakepeoplelivelonger.Astudylikethiscanneverproveacause-and-effectrelationship.Allitcanreallydoistopointresearchersintherightdirectionforfurtherinvestigation.Andevenifitturnsoutthatcoffeeisreallygoodforyou,scientistshavenoideawhy.Accordingtothefirstparagraph,reporterswouldliketoknowtheresearchfindingsof_____.单选题A.A.teaB.B.beerC.C.alcoholD.D.coffeeAccordingtothepassage,whichofthefollowingisTRUE?单选题A.A.Freedmanandhiscolleagueshired400,000Americanstocollectdata.B.B.AboutfourhundredthousandAmericansworkedforFreedman’steamfulltimefor13years.C.C.PeoplewhotookpartinFreedman’sresearchareabout50to70yearsold.D.D.Peoplewhoare50to70yearsoldseldomdrinkcoffee.Accordingtotheauthor,scientists_____.单选题A.A.havealreadyprovedthatcoffeeisgoodforhumanhealthB.B.havealongwaytogobeforetheyfindawaytostudycoffeeC.C.haveavoidedthecause-and-effectapproachtostudycoffeeD.D.arestillunabletofigureoutwhycoffeeisgoodforusTheword“mixed”inthefirstparagraphmeans“_____”.单选题A.A.bothgoodandbadB.B.puttogetherC.C.bothsharpandsoftD.D.confusedWhichofthefollowingisanappropriatetitleforthispassage?单选题A.A.CanBeerHelpYouLiveLonger?

B.B.CanCoffeeHelpYouLiveLonger?C.C.CanWineHelpYouLiveLonger?D.D.CanTeaHelpYouLiveLonger?22.请阅读以下文章，回答文章后的五个小题。每个小题只有一个最佳选项。Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfallsto-30°Fandthesunneverrises.Theoceanissurroundedbyfrozenground.Therearefewpeopleortrees,buttopolarbears,theArctic(北极)ishome.Polarbearshavethickfur,bigpawsandotherfeaturesthatmakethemwellpreparedforlifeintheirtoughenvironment.Infact,theyneedtheArcticseaiceforsurvival.Butclimatechangeiscausinglargerandlargerareasofsummerseaicetomelt(融化).Expertssaythatifwarmingpatternscontinue,theArcticcouldbefreeofsummerseaiceby2050.Thatmaycausetwo-thirdsoftheworld’s20,000polarbearstobegonebythentoo.Polarbearscan’tsurviveforlongonland.Sealsaretheirmainsourceoffood.Theonlyplacewherepolarbearscanhuntsealsisontheice.(79)Althoughthesebearsarestrongswimmers,theyarenomatchforlightningswiftsealsinthewater.Apolarbearhasbrilliantlycleverstrategiestoovercomethisdisadvantage.Inwinterthebearwaitsmotionlessbesideaseal’sbreathinghole,whichisanarrowtunnelthroughtheice.Oftenmanyhourspassbeforethesealcomesupforairandthebearkillsitwithapowerfulblowofitspaw.Insummer,thepolarbearsthatliveonlandeatverylittleandwaitfortheseaicetoreturn.Withtheseaiceforminglaterintheyearandmeltingearlier,polarbearsdonothaveenoughopportunitytohuntandeat.Lessseaicemakesitharderforthebearstocatchtheseals.Thebearsmustswimlongerdistancesbetweenicepacks(大片浮冰),andtheycan’talwaysmakeit.Theiceisalsogettingthinner.Theseconditionscancausepolar-bearcabstobecomeseparatedfromtheirmothers,whoprovidethemwithfood.StevenAmstrupisthechiefscientistofPolarBearsInternational.Thegroupaimstosavethebearsandtheirhome."Themorepeoplewhoseepolarbearsandunderstandtheirdifficultsituation,thebetterthechancewe’llalterourwarmingpathintimetosavethem,"hesays.Whichisthebesttitleforthepassage?单选题A.A.ClimateChangeintheArcticB.B.HowtoProtecttheEnvironmentC.C.TheArcticTsHometoPolarBearsD.D.PolarBearsinDangerWheredopolarbearsusuallyhuntseals?单选题A.A.Onland.B.B.Inopenwater.C.C.Inopeningsintheseaice.D.D.Atthebottomofthesea.Theword"cubs"inthefourthparagraphisclosestinmeaningto_____单选题A.A.adultsB.B.babiesC.C.huntersD.D.enemiesAccordingtothepassage,whichofthefollowingstatementsisTRUE?单选题A.A.Starvingpolarbearsareincreasinglycomingintovillages,wheretheymaybekilledeitherforfoodorsafety.B.B.Polarbearscanspendtheirentirelivesonlandiftheseaicemeltscompletely.C.C.Two-thirdsoftheworld'spolarbearsmaydisappearby2050asglobalwarmingcontinues.D.D.Thegrowingdistancebetweenicepacksisnotaproblemforpolarbears,becausetheyareexcellentswimmers.What’sthemissionofPolarBearsInternational?单选题A.A.Savingenergy.B.B.Conductingscientificresearch.C.C.Seekinginternationalcooperation.D.D.Savingpolarbearsandtheirhome.23.阅读文章，根据文意选择最佳选项。BythetimeIfinishedhighschool,myinterestinanimalshadgrown,andIenrolledatauniversitytostudybiology.Ilearnedsoonenoughthatstudyinganimals（1）thislevelwasnotintheanimals’bestinterests.Irememberonemidtermexamin（2）eachstudentwashandedalarge,freshly-killedfrogandinstructedtodissect(解剖)andmarkasetofbodyparts.Ilookedatthe（3）froginfrontofmeandwassaddenedthatherlifewastakenawayforsuchaslight（4）.Ayearlater,inthesamelab（5）Idissectedthefrog,Iperformedasmallactofanimalliberation.Wewereexperimentingonfruitflies,anditwastimetorecordthedistributionofcharacteristicsintheirnextgeneration.Flieswere（6）insmallplasticbottles.Countingthenumberofflieswithwhiteorredeyesrequiredfirstexposingthemtoether(乙醚)sothattheycouldnotmove.Theflieswerethenspreadontoapieceofwhitepaper（7）andcounted.Whenthedatacollectionwascomplete,theflieshadnofurtheruse,andourinstructionswereto（8）themintoasmallglassdishofoilatthecenterofeachdesk,whichwastobetheirfinalrestingplace.Oncemylittlepileofflieshadbeencounted,Ipushedthemofftheedgeofthepaper.Aswerecordedourdata,Ikeptoneeye（9）them.Withinminutesthepilewashumming(嗡嗡叫)astinylegsandwingsbeattheirwayoutoftheetherfog.Iwasextremelyexcitedastheytookflight.Thatwasmyfirst（10）inrefusingtoconductscientificresearchthattreatednonhumanlifeinacruelway.（1）单选题A.A.atB.B.withC.C.forD.D.off（2）单选题A.A.whatB.B.thatC.C.whereD.D.which（3）单选题A.A.aliveB.B.deadC.C.livingD.D.wounded（4）单选题A.A.reasonB.B.