大学英语4作业集

阶段作业1单选题1:Ifyoupouroilonwater,it_______float.(A)shall(B)will(C)can(D)may答案B2:EitheryouorI_______abletodesignthemachine.(A)is(B)hasbeen(C)aretobe(D)am答案D3:Bythetimethecourseends，_______alotaboutmarketeconomy.(A)we'11learn(B)we'llhavelearnt(C)wearelearning(D)wehavelearnt答案B4:Doyouremember_______meatapartylastyear?(A)meet(B)tomeet(C)meeting(D)met答案C5:Pdratheryou_______withmenow.(A)go(B)togo(C)willgo(D)went答案D6:Itisimportant_______there,intime.(A)foryoutoget(B)toyoutoget(C)yourgetting(D)ofyougetting答案A7:Thedollarhasgonedownagainstyen;_______JapanesegoodsaremoreexpensiveforAmericans.(A)therefore(B)however(C)andstill(D)andyet答案A8:You_______heratthebeginning,butnowitistoolate.(A)oughttohaverefused(B)oughttorefuse(C)oughthaverefused(D)needn,trefuse答案A9:Ifyou_______toseethatperson,whatwouldyousaytohim?(A)will(B)were(C)willbe(D)are答案B10:Hehasalreadymadeuphismind,it’snouse_______him.(A)trytopersuade(B)totrytopersuade(C)tryingtopersuade(D)totrypersuading答案C11:Thenewspapersaysthattheweatherisgoingto_______tomorrow.(A)clearof(B)clearcut(C)clearoff(D)clearup答案D12:We've_______sugar.AskMrs.Jonestolendussome.(A)runawaywith(B)rundown(C)runoff(D)runoutof答案D13:Thestudents_______theirthankstoProfessorBrownbypresentinghimwithagift.(A)revealed(B)expressed(C)showed(D)said答案B14:Ibenefit_______thatexperience.(A)in(B)from(C)with(D)out答案B15:SheregardedTom_______herbestfriend.(A)on(B)as(C)of(D)if答案B16:Ifailedto_______thebus.(A)get(B)got(C)catch(D)catched答案C17:Inresponse_______hercall,Imailedher.(A)for(B)with(C)to(D)on答案C18:Hisfatherhada_______lifewhenhewasyoung.(A)suffered(B)cruel(C)bitter(D)little答案C19:Weneedmorefoodtoprotectus_______thefamine.(A)out(B)off(C)to(D)against答案D20:Thespeedofradiowavesisequalto_______oflight.(A)those(B)that(C)theone(D)theones答案B21:Icanhardly_______thedifferencebetweenthesetwowords.(A)point(B)speak(C)talk(D)tell答案D22:Look_______thedifferentmeaningsoftheseChinesewordsinadictionary.(A)out(B)up(C)for(D)on答案B23:Ourplanereached_______atfiveclock.(A)inLondon(B)London(C)atLondon(D)onLondon答案B24:Heisnotalawyerbuthe_______hewere.(A)wishes(B)hopes(C)longs(D)believes答案A25:Hewas_______ofhavingaskedsuch.(A)sorry(B)guilty(C)ashamed(D)miserable答案C26:Lawandmedicineare_______professionsinmostcountries.(A)respective(B)respected(C)respectable(D)respectful答案C27:TheexplorersarefollowinguptheYangtzeRivertodiscoverits_______(A)origin(B)root(C)source(D)resource答案A28:Hetriedtojointhearmy,butwas_______(A)refused(B)declined(C)objected(D)rejected答案B29:Thenewly-builtstadiumcan_______80,000viewers.(A)accommodate(B)accomplish(C)accelerate(D)accumulate答案A30:Thejob-hunterisapplyingfora_______positioninaforeign-capitalcompany.(A)vacant(B)empty(C)blank(D)are答案A阅读理解1.Hairlossisoneofthosethingswestilldonotunderstand.Sciencehas,ofcourse,shownthatmenaremorelikelythanwomentosuffermajorhairloss.Somekindsofhairlossaretemporary(暂时的)，aneffectofillness.Inthosecaseswecanexpectthehairtogrowback.//Italldependsonwhetherthehairrootisalive.Ifitisnot,hairlossispermanentandnothingwillhelp.//Somedailylossofhairisnormal,healthysign.Mostpeoplelosebetween40〜50scalphairseachday.//Eachofthesescalphairsgrowsforfromtwotosixyearsandthenrests.Aboutthreemonthslateritispushedoutbyanewhairgrowingfromthesameroot.//Thisisnotsomethingthatshouldcausegreatconcern.//Somethingelseweknowisthatnormalhairlossisseasonal,withthemosthairlossoccurringinthefall.Everyoneexperiencesanormalcycleoflossandgrowth.Theproblemofhairlossresultswhenlossisgreaterthangrowth.//Themaincauseofhairlossinmenseemstobeaccumulation(积累)ofahormone(荷尔蒙）inthebody.Whenthathormonereachesacertainlevel,thehairgrowingperiodisshortenedandhairlossistheresult.Thereisnocureformostcasesofhairloss.This,however,isnottheendoftheworld.31:Accordingtoscience,_______.(A)hairlossisanormal,healthy,sign(B)manshouldpayspecialattentiontohairloss(C)it'slikelythatmenhavemoreproblemsofhairloss(D)menlosemorehairthanwomendo答案C32:Thewriterthinks_______(A)illnesscauseshairloss(B)humanbeingshavenowaytocurehairloss(C)hairlosshappeninginthefallisaneffectofillness(D)hairlossispermanent答案B33:Wenowknowthatthemosthairlosshappeningintheautumnis_______(A)permanent(B)healthysign(C)seasonal(D)nothingserious答案C34:Thesentence“This,however,isnottheendoftheworld”means_______(A)manissuretofindthebestwayofcuringhishairlossinthefuture(B)thewriterbelievestheearthexistsforever(C)wecan’tdestroytheworldbyanymeans(D)thelastdaywillnevercometoourpeople答案A35:Thebesttitleforthepassagemaybe_______(A)LossorGrowth(B)HairLoss(C)HealthySign(D)ChangewithSeasons答案B阅读理解2.Banksarenotordinarilypreparedtopayoutallaccounts;theyrelyondepositors(储户）nottodemandpaymentallatthesametime.Ifdepositorsshouldcometofearthatahankisnotsafe,thatitcannotpayoffallitsdepositors,thenthatfearmightcauseallthedepositorstoappearonthesameday.Iftheydid,thebankcouldnotpayallaccounts.However,iftheydidnotallappearatonce,thentherewouldalwaysbeenoughmoneytopaythosewhowantedtheirmoneywhentheywantedit.Mrs.ElsieVaughthastoldusofaterrifyingbankrunthatsheexperienced.OnedayinDecemberof1925severalbanksfailedtoopeni