狀語從句練習

狀語從句定義：用來修飾主句中的動詞，副詞和形容詞的從句叫狀語從句。狀語從句可分為時間狀語從句，地點狀語從句，條件狀語從句，原因狀語從句，結果狀語從句，比較狀語從句，目的狀語從句，讓步狀語從句。1.時間狀語從句(1)時間狀語從句常用when,while,before,after,since,till,until,assoonas等連詞來引導。Itwasraininghardwhengottoschoolyesterday.Whilehewasdoinghishomework,thetelephonerang.HehadlearnedalittleChinesebeforehecametoChina.Afterhefinishedmiddleschool,hewenttoworkinafactory.(2)如果主句是一般將來時態(tài)/祈使句/含有情態(tài)動詞，時間狀語從句要用一般現(xiàn)在時。例如：(也就是主將從現(xiàn))I’llringyouupassoonasIgettoNewYork.Icantellhimeverythingwhenhecomesback.Tellhimtocomeherewhenhehastimetomorrow.(3)till或until引導的時間狀語從句，肯定式，其含義是“一直到……時”，謂語動詞用延續(xù)性動詞。如果是否定式：not...untill則表示：“直到……才……”,“在……以前不……”Theyworkeduntilitwasdark.他們一直工作到天黑。Hedidn'tgotobeduntilitwas12o'clocklastnight.他昨晚十二點才上床睡覺。Let’swaituntiltherainstops.Wewon’tstartuntilBobcomes.Don’tgetoffuntilthebusstops.2.條件狀語從句(1)條件狀語從句通常由if（如果）,unless（除非）引導。(1)如果主句是一般將來時態(tài)/祈使句/含有情態(tài)動詞，條件狀語從句要用一般現(xiàn)在時。例如：Don’tleavethebuildingunlessItellyouto.Whatshallwedoifitsnowstomorrow?I’llhelpyouwithyourEnglishifIamfreetomorrow.Hewon’tbelateunlessheisill.Iftherainstops,Ishallgooutforawalk.如果雨停了，我就出去散步。IwillcometoseeyouifIhavetime.我有時間，我就來看你。(2)“祈使句+and(or)+陳述句”在意思上相當于一個帶有條件狀語從句的復合句。例如：Hurryup,oryou’llbelate.=Ifyoudon’thurryup,you’llbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.3.原因狀語從句(1)原因狀語從句通常由because,since,as引導。Hedidn’tcometoschoolbecausehewasill.Asitisraining,weshallnotgothezoo.Sinceyoucan’tanswerthequestion,I’llasksomeoneelse.(2)because表示直接原因，語氣最強。Because引導的原因狀語從句多放在主句之后。回答由why提出的問題，只能用because。As和since語氣較弱，一般用來表示明顯的原因。由as和since引導的原因狀語從居多放在句首。例如：Whyaren’tgoingthere?BecauseIdon’twantto.Ashehasnocar,hecan’tgetthereeasily.Sincewehavenomoney,wecan’tbuyit.注意：because和so不能同用在一個句子里。4.結果狀語從句(1)結果狀語從句由so…that,such…that引導。例如：Heissopoorthathecan’tbuyabikeforhisson.Sheissuchagoodteacherthateverybodylikesher.(2)so…that語such...that可以互換。Itwassuchawonderfulfilmthatallofuswantedtoseeitagain.=Thefilmwassowonderfulthatallofuswantedtoseeitagain.Itissuchanimportantmatchthatnobodywantstomissit.=Thematchissoimportantthatnobodywantstomissit.注意：在由such…that引導的結果狀語從句中，such后可以是單數(shù)或復數(shù)可數(shù)名詞，也可以是不可數(shù)名詞；如果是單數(shù)可數(shù)名詞，前面需加不定冠詞a或an。Itwassuchahotdaythatnobodywantedtodoanything.Hehadsuchlongarmsthathecouldalmosttouchtheceiling（天花板）.如果名詞前由many,much,little,few等詞修飾時，只能用so,不用such。Soonthereweresomanydeerthattheyateupallthewildroses(野玫瑰).Hehassolittletimethathecan’tgotothecinemawithyou.5.比較狀語從句比較狀語從句通常由as…as,比較級+than…等連詞引導。TomrunsfasterthanJohndoes.Thisclassroomisasbigasthatone.6.目的狀語從句(1)目的狀語從句通常由sothat,inorderthat引導。例如：Westartedearlysothatwecouldcatchthefirsttrain.Hestudieshardsothathecouldworkbetterinthefuture.Speakclearlysothattheymayunderstandyou.(目的狀語從句)Weusedthecomputerinorderthatwemightsavetime.注意：Weusedthecomputerinorderthatwemightsavetime.=Weusedthecomputerinordertosavetime.7.讓步狀語從句讓步狀語從句通常由although,though等連詞引導。例如：Thoughheisyoung,heknowsalot.AlthoughIamtired,Imustgoonworking.注意：although(though)和but不能用在同一個句子中。例如：我們不能說：Thoughitwasraininghard,buthestillwentout.應該說：Thoughitwasraininghard,hestillwentout.或Itwasraininghard,buthestillwentout.單項填空:1._______he’sold,hecanstillcarrythisheavybag.A.ThoughB.SinceC.ForD.So2.---Doyouknowifhe_______toplaybasketballwithus?---Ithinkhewillcomeifhe______freetomorrow.A.comes;isB.comes;willbeC.willcome;isD.willcome;willbe3.Inthezooifachild_____intothewaterandcan’tswim,thedolphinsmaycomeup______him.A.willfall;tohelpB.falls;tohelpC.willfall;helpD.falls;helping4.Idon’tremember________heworkedinthatcitywhenhewasyoung.A.whatB.whichC.whereD.who5.Wewillstayathomeifmyaunt________tovisitustomorrow.A.comesB.comeC.willcomeD.iscoming6.Thepoliceaskedthechildren_______crossthestreet________thetrafficlightsturnedgreen.A.not;beforeB.don’t;whenC.notto;untilD.not;after7.Iwaslateforclassyesterday_______therewassomethingwrongwithmybike.A.whenB.thatC.untilD.because8.I’llgoswimmingwithyouifI________freetomorrow.A.willbeB.shallbeC.amD.was9.Intheexam,the________youare,______the_______mistakesyouwillmake.A.careful;littleB.morecareful;fewestC.morecareful;fewerD.morecareful;less10.Youshouldfinishyourlessons_______yougoouttoplay.A.beforeB.afterC.whenD.while11.Ihurried_____Iwouldn’tbelateforclass.A.sinceB.sothatC.asifD.unless12.Theteacherraisedhisvoice_______allthestudentscouldhearhim.A.forB.sothatC.becauseD.inorder13.Hetookoffhiscoat_______hefelthot.A.becauseB.asC.ifD.since14.Itis______thatwe’dliketogooutforawalk.A.alovelydayB.toolovelyadayC.solovelyadayD.suchlovelyaday15.Maryhad______muchworktodothatshestayedatherofficeallday.A.suchB.soC.tooD.very16._______Ifeltverytired,Itriedtofinishthework.A.AlthoughB.BecauseC.AsD.Asif17.______wellyoucandrive,youmustdrivecarefully.A.SolongasB.InorderthatC.NomatterhowD.Themoment18.Writetomeassoonasyou________to