1.Ourbusinesswon’timprove weofferbetterservicetoourclients.A.becauseB.unlessC.afterD.since2. wedidn’twinthebasketballgame,weweresatisfiedwithourhardwork.A.IfB.ThoughC.SinceD.Because3.“Youcan’tjudgeabookbyitscover,”________.A.asthesayinggoesoldB.goesastheoldsayingC.astheoldsayinggoesD.goesasoldthesaying4.Don’tworry!Youcaneasilyfindajob skilledworkersarebadlyneeded.A.whenB.thoughC.unlessD.where5.Yourparentsarealwaystherebyyou, youneedthem.A.wheneverB.howeverC.whateverD.whoever6._____Imakeapromisetohelpothers,Iwillmanagetocompleteit.A.AlthoughB.OnceC.UnlessD.Before7.Wewon’ttakeaction________webelievethingsaregettingbetter.A.thoughB.howeverC.unlessD.where8.________Mr.WhitewasthelastmanIwantedtosee,Idideverythinginmypowertohelphim.A.SinceB.WhenC.WhileD.Unless9.Someparentscan’taffordenoughtimewiththeirchildren______theywantto.A.asifB.evenifC.becauseD.before10._____youvisitthewebsite,youcanfindtheinformationyouneed.A.AlthoughB.AslongasC.SinceD.Unless11.Backwardsomewhattechnologically________weareforthemoment,wehaveconfidenceinourabilit ytocatchupintime.A.asB.ifC.althoughD.because12.––DoyoumindifIgooutthisevening?––Idon’tmindwhatyoudo________youletmeknowaheadoftime.A.eversinceB.incaseC.aslongasD.eventhough13.Theactorwashappyhegotapartinthemovie,________thepartwassmallone.A.sinceB.whileC.thoughD.unless14.Astupidmantellsawomantoshutup,whileawisemantellsherthathermouthisquitebeautiful_______ _itisclosed.A.unlessB.sinceC.whenD.though15.—Don’tlookdownuponBob.Hehashisownadvantages.—Oh,yes. othersareweak,heisstrong.A.BeforeB.WhenC.WhereD.Though16.________youarefamiliarwiththetopic,pleasetrywritinganarticleaboutit.A.IncaseB.OnlyifC.NowthatD.Eversince17.Ineedtogettoworkearly______Icanfinishthereportbeforethemeeting.A.suchthatB.onlyifC.nowthatD.sothat18.Work_______theymight,theydidn’tgettheresulttheyexpected.A.althoughB.sinceC.asD.asthough19.Thereisnogreatness simplicity,goodnessandtruthareabsent.A.thoughB.untilC.whereD.because20.Wearealwayseducatedtotreasurethepresentmoment,becausegone,thingswillnevercomebackagain.A.whileB.sinceC.onceD.unless21.livingcombinestragedywithsplendor,lifeisbeautifulandeventragediesreflectsomethingengaging.A.AlthoughB.EventhoughC.AsD.When22.—Whydidn’tyoutrytofinishthecomposition?—Itriedto,but Icould,thebellranannouncingtheendoftheexaminationtime.A.untilB.whenC.beforeD.after23.___________youweren’tthere,Ileftamessage.A.AsB.WhenC.ThoughD.For24.MarkneedstolearnChinese________hiscompanyisopeningabranchinBeijing.A.unlessB.untilC.althoughD.since25.Let’snotpickthesepeachesuntilthisweekend___________theygetsweetenoughtobeeaten.A.eversinceB.asifC.eventhoughD.sothat26.ThenewstadiumbeingbuiltforthenextAsianGameswillbe thepresentone.A.asthreetimesbigasB.threetimesasbigasC.asbigasthreetimesD.asbigthreetimesas27.Iwonderwhetherhishearingisokay_______________hehasturnedthetelevisionupveryloud.A.unlessB.althoughC.untilD.because28.Theplayhasremainedamystery____________theproducerwantstosurprisetheaudience.A.althoughB.becauseC.unlessD.until29.Whenmyfathergoessomewhere,healwaysgoesalongwithmymother,_____________hedoesn’tlik egoingalone.A.thoughB.asC.whileD.evenif30.________thetermhascometoanend,Iamgoingtotakeatripforrelaxation.A.NowthatB.EvenifC.AsthoughD.Sothat31.Cathyhadquitherjobwhenhersonwasborn_______________shecouldstayhomeandraiseherfamily.A.nowthatB.asifC.onlyifD.sothat32.Thefilm RomanHoliday is_____________interesting____________Iwouldliketoseeitagain.A.such;thatB.too;toC.as;asD.so;that33.Marytooksomebookswithher_________shewouldnotgetboredduringthelongjourney.A.incaseB.asifC.inorderthatD.onlyif34.Goalshavetoberealistic_________studentscanreachthemandfeelasenseofachievement.A.solongasB.sothatC.nowthatD.eventhough35.Perhapsitwas_________myfatheroftenpublishedhispoemsinthenewspapersthathebecameknownt hroughhisliteraryworks.A.beforeB.whenC.ifD.because36.__________fewerpeoplesendletterstooneanother,thenumberofpeoplecollectingstampshasbeenst eadilyindecline.A.BeforeB.AlthoughC.AsD.If37.Morepeoplewilleatoutinrestaurants theydotoday.A.thanB.whenC.whileD.as38.Helookedatmecuriously hehadsomedoubtwhichhewasunwillingtoexpress.A.asifB.incaseC.unlessD.sothat39.Enjoythefirsthouroftheday.Thisisveryimportant___________itsetsthemoodfortherestoftheday.A.asB.ifC.whenD.where40.Iwon’tattendthepartytobeheldinMary’shome,____________Iwon’tstaywhereIfeelI’mnotwelco med.A.nowthatB.sothatC.becauseD.when1.【答案】B【解析】句意：除非我们为客户提供更好的服务，否则我们的生意就不会好转。

because：因为，引导原因状语从句；unless：除非，引导条件状语从句；after：在……之后，引导时间状语从句；since：自从，引导时间状语从句。