北京大学15秋《大学英语3》作业5答案.docx
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北京大学15秋《大学英语3》作业5答案
北京大学15秋《大学英语3》作业5答案
1.鼓励独立完成作业，严禁抄袭。
词汇与结构
PleasegiveJimtheschedulefortomorrow’sconferencewhenheback.Heistochairtheconference.
A.A.willcome
B.B.come
C.C.comes
D.D.came
————C
2.fiveminutesearlier,youwouldnothavemissedthelasttrainforShanghai,butyouwerelate.
大学英语3答案
A.A.Hadyoucome
B.B.Doyoucome
C.C.Didyoucome
D.D.Shouldyoucome
————A
3.Afterheworkedoutthesolution,appearedasmileonhisface.
A.A.it
B.B.here
C.C.what
D.D.there
————D
4.theformerpresident’ssupporterswentoutinstreetstoexpresstheirangeranddissatisfaction.
A.A.Asmallamountof
B.B.Alargenumberof
C.C.Alittlebitof
D.D.Agreatdealof
————B
5.
Tobehonest,today’sdinnerwasjustso-so.Itwasn’tsuchagoodone_____promisedbytheboss.
A.A.that
B.B.which
C.C.as
D.D.what
————C
6.Somanypeople______themeetinghadtobeputoff.
A.A.beingabsent
B.B.tobeabsent
C.C.wereabsent
D.D.hadbeenabsent
————A
7.Weoftenadvisehimnottodrinkmoreisgoodforhishealth.
A.A.as
B.B.that
C.C.than
D.D.but
————C
8.—DidCharlesvoteinthelastelection?
—No,hewasn’t.
A.A.enougholdthen
B.B.thenenoughold
C.C.oldthenenough
D.D.oldenoughthen
————D
9.
Bynomeanslookdownonthosewhoarelessluckyinlifethanweare.
A.A.weshould
B.B.shouldwe
C.C.weshouldnot
D.D.shouldwenot
————B
10.
Hedidn’tfeellikethatdaysohestayedindoorsreading.
A.A.working
B.B.works
C.C.towork
D.D.worked
————A
11.Nosoonerhadwestartedontheroaditbegantorain.
A.A.when
B.B.than
C.C.then
D.D.whenever
————B
12.Hedecidedtogoforasailingholidaythefactthathewasusuallyseasick（晕船）.
A.A.becauseof
B.B.inspiteof
C.C.incaseof
D.D.asaresultof
————B
13.Whatyoudoinyoursparetimeisyourown__.Howeveritshouldnotbeharmfultoothers.
A.A.business
B.B.purchase
C.C.bargain
D.D.sale
————A
14.Asagardener,Jimhastowatertheflowersandthegrassinthegardeneverymorning.
A.A.trim
B.B.improve
C.C.refine
D.D.repair
————A
15.Thefiremenarestillthesmallfiresstartedbytheplanecrash.
A.A.takingoff
B.B.settingaside
C.C.gettingalongwith
D.D.puttingout
————D
16.
改错
请在以下句子划线部分中，挑出错误的选项。
Thesungivesofflightandwarmth,thatmakesitpossibleforplantstogrow.
A.A.givesoff
B.B.that
C.C.it
D.D.for
————B
17.Sandpaintinghasalsocalleddryorearthpaintingandispracticedby
severalAmericanIndianartists.
A.A.hasalsocalled
B.B.and
C.C.ispracticed
D.D.severalAmericanIndianartists
————A
18.Humans,likemanyotheranimals,arewarm-bloodedwithafairlyconstantlybodytemperature.
A.A.Humans
B.B.like
C.C.with
D.D.fairlyconstantly
————D
19.Nowthatthestressofexaminationsandinterviewsareover,wecanallrelaxforawhile.
A.A.Nowthat
B.B.are
C.C.all
D.D.relax
————B
20.ThetalleBstofthetwinswenttosearchforthemissingjewels,thepictureofwhichyousawintoday’snewspaper.
A.A.tallest
B.B.searchfor
C.C.thepictureof
D.D.which
————A
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21.
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.
1.Whichisthebesttitleforthepassage?
单选题
A.A.ClimateChangeintheArctic
B.B.HowtoProtecttheEnvironment
C.C.TheArcticTsHometoPolarBears
D.D.PolarBearsinDanger
————D
2.Wheredopolarbearsusuallyhuntseals?
单选题
A.A.Onland.
B.B.Inopenwater.
C.C.Inopeningsintheseaice.
D.D.Atthebottomofthesea.
————C
3.Theword
单选题
A.A.adults
B.B.babies
C.C.hunters
D.D.enemies
————B
4.Accordingtothepassage,whichofthefollowingstatementsisTRUE?
单选题
A.A.Starvingpolarbearsareincreasinglycomingintovillages,wheretheymaybekilledeitherforfoodorsafety.
B.B.Polarbearscanspendtheirentirelivesonlandiftheseaicemeltscompletely.
C.C.Two-thirdsoftheworld'spolarbearsmaydisappearby2050asglobalwarmingcontinues.
D.D.Thegrowingdistancebetweenicepacksisnotaproblemforpolarbears,becausetheyareexcellentswimmers.
————C
5.What’sthemissionofPolarBearsInternational?
单选题
A.A.Savingenergy.
B.B.Conductingscientificresearch.
C.C.Seekinginternationalcooperation.
D.D.Savingpolarbearsandtheirhome.
————D
--------------------------------------------------------------------------------
22.
Whenwe’relearningaforeignlanguage,makingsenseofwhatwehearisthefirststeptowardfluency.Itsoundsobvious,butuntilrecently,wedidn’tknowmuchabouthowlisteningworks.Newresearchdemonstratesthateffectivelisteninginvolvesmorethansimplyhearingthewordsthatfloatpastourears.Rather,it’sanactiveprocessofreceivinginformationandmakingmeaning.Thiskindofengagedlisteningisaskillthat’sascriticalforlearningarangeofsubjectsatschoolandworkasitisforlearningtounderstandaforeigntongue.
Studiesofskilledlanguagelearnershaveidentifiedspecificlisteningstrategiesthatleadtosuperiorcomprehension.Lastyear,forexample,UniversityofOttawaresearcherLarryVandergriftpublishedhisstudyof106undergraduateswhowerelearningFrenchasasecondlanguage.Halfofthestudentsweretaughtinaconventionalfashion,listeningtoandpracticing
textsspokenaloud.Theotherhalf,possessingthesameinitial（最初的）skilllevelandtaughtbythesameteacher,weregivendetailedinstructiononhowtolisten.Itminedoutthatthesecondgroup“significantlyoutperformed”（胜过）thefirstoneonatestofcomprehension.
Sowhataretheselisteningstrategies?
Skilledlearnersgointoalisteningclasswithasenseofwhattheywanttogetoutofit.Theysetagoalfortheirlisteningandtheygeneratepredictionsaboutwhatthespeakerwillsay.Beforethetalkingbegins,theymentallyreviewwhattheyalreadyknowaboutthesubject,andformanintentionto“listenoutfor”what’simportantorrelevant.Oncetheybeginlistening,theselearnersmaintaintheirfocus;iftheirattentionwanders,theybringitbacktothewordsbeingspoken.Theydon’tallowthemselvestobethrownoffbyconfusingorunfamiliardetails.Instead,theytakenoteofwhattheydon’tunderstandandmakeinferencesaboutwhatthosethingsmightmean,basedonothercluesavailabletothem:
theirpreviousknowledgeofthesubject,thecontext（语境）ofthetalk,,theidentityofthespeaker,andsoon.
1.Whatisthemainideaofthispassage?
单选题
A.A.Effectivelisteningmeanshearingthewordsthatfloatpastourears.
B.B.Developingyourlisteningskillsisthefirststeptowarddevelopingfluency.
C.C.Skilledlistenersusespecificstrategiestogetthemostoutofwhattheyhear.
D.D.Listeningisoneofthemostpowerfultoolswehavetogaininformation.
————C
2.WhatdoesVandergrift’sresearchshow?
单选题
A.A.Learnerswhoadoptspecificlisteningstrategiesbecomebetterlisteners.
B.B.Learnerstaughtinthetraditionalwayarebetteratreinforcingwhattheylearn.
C.C.Learnersaremoreconfidentiftheymakefewermistakes.
D.D.Learnerswholistenonaregularbasisimprovefaster.
————A
3.WhichofthefollowingstatementsaboutVandergrift’sresearchisTRUE?
单选题
A.A.TheparticipantswerepostgraduateslearningFrenchasasecondlanguage.
B.B.Alltheparticipantsweretaughtusingtheconventionalmethod,withthefocusonlisteningstrategies.
C.C.Thetwogroupsweretaughtbydifferentteachers.
D.D.Theparticipantswereatthesameinitialskilllevel.
————D
4.Theexpression“thrownoff”inthethirdparagraphisclosestinmeaningto“_____”.
单选题
A.A.infected
B.B.confused
C.C.ruined
D.D.informed
————A
5.Accordingtothepassage,whichofthefollowingstrategiesisNOTusedbyskilledlearners?
单选题
A.A.Reviewtheirpriork
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