状语从句PPT课件(精讲)优质PPT.ppt
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1.ShecameupasIwascooking.(同时)2.Therunnersstartedasthegunwentoff.(几乎同时)when既可以表示在某一点的时候,又可表示在某一段时间内。
when可以和延续性动词连用,也可以和短暂性动词连用;
而while和as只能和延续性动词连用;
when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;
while和as从句的谓语动作必须是和主句谓语动作同时发生。
1.Whenwewereatschool,wewenttothelibraryeveryday.(在一段时间内)2.Sorry,Iwasoutwhenyoucalledme(call为短暂性动词)对不起,你打电话时我刚好外出了。
3.WhenIgottotheairport,theguestshadleft(gotto后发生)当我赶到飞机场时,客人们已经离开了。
whilewhile意思是“当的时候”或“在某一段时间里”。
从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。
主句中的动作或事情是在从句中的动作或事情的进展过程中发生,从句中的动词一般要用延续性动词。
1.WhenWhileAsweweredancing,astrangercamein(dance为延续性动词)。
2.Pleasedonttalksoloudwhileothersareworking.延续性动词表达的动作能够延续,如:
延续性动词表达的动作能够延续,如:
keep保存,维持;
保存,维持;
walk走路;
走路;
read阅读等;
非延续性动词也称瞬间动词,所表达的动作不能够延续。
如:
阅读等;
hear听到;
听到;
return归还;
归还;
see看见。
看见。
无忧无忧PPTPPT整理发布整理发布1.(11浙江4)OneFriday,wewerepackingtoleaveforaweekendaway_mydaughterheardcriesforhelp.A.afterB.whileC.sinceD.when答案:
D解析:
句意为星期五那天,当我们正准备出发去过周末的时候,我的女儿听到有人叫救。
易混淆:
在while和when这里犹豫。
对比:
(2006湖南)2.Ihadjuststeppedoutofthebathroomandwasbusilydryingmyselfwithatowel_Iheardthesteps.A.whileB.whenC.sinceD.after答案:
B解析:
下划线处表示“正在这时,突然”,四个选项中只有when可以表示此含义。
无忧无忧PPTPPT整理发布整理发布引导时间状语从句的连接词除上述外还有:
till,notuntil,until,before,sinceDontgetoffthebusuntilithasstopped.Hewaitedforhisfatheruntil(till)itwastwelveoclock.ItwillbefiveyearsbeforehereturnsfromEngland.hardly/scarcelywhen,nosoonerthan,assoonasonce表示“一就”AssoonasIhavefinishedit,Illgiveyouacall.Onceyoushowanyfear,hewillattackyou.Wehadhardlygot/Hardlyhadwegotintothecountrywhenitbegantorain.Nosoonerhadhearrived/Hehadnosoonerarrivedthanshestartedcomplaining.directly,immediately,themoment,theminutethat一就Hemadeforthedoordirectlyheheardtheknock.eachtime,everytime,bythetimeEachtimehecametomycity,hewouldcallonme.无忧无忧PPTPPT整理发布整理发布22、地点状语从句、地点状语从句常用引导词:
where特殊引导词:
wherever,anywhere,everywhere例句Generally,airwillbeheavilypollutedwheretherearefactories.Whereveryougo,youshouldworkhard.无忧无忧PPTPPT整理发布整理发布33、原因状语从句、原因状语从句常用引导词:
because,since,as,for特殊引导词:
seeingthat,nowthat,inthat,consideringthat,giventhat,consideringthat,asmuchas,somuchas例句MyfriendsdislikemebecauseImhandsomeandsuccessful.Nowthateverybodyhascome,letsbeginourconference.Thehigherincometaxisharmfulinthatitmaydiscouragepeoplefromtryingtoearnmore.Consideringthatheisnomorethan12yearsold,hisheightof1.80misquiteremarkable.无忧无忧PPTPPT整理发布整理发布44、目的状语从句、目的状语从句常用引导词:
sothat,inorderthat特殊引导词:
lest,incase,forfearthat,inthehopethat,forthepurposethat,totheendthat例句Thebossaskedthesecretarytohurryupwiththeletterssothathecouldsignthem.Theteacherraisedhisvoiceonpurposethatthestudentsinthebackcouldhearmoreclearly.无忧无忧PPTPPT整理发布整理发布55、结果状语从句、结果状语从句常用引导词:
sothat,sothat,suchthat,特殊引导词:
suchthat,tothedegreethat,totheextentthat,tosuchadegreethat,例句Hegotupsoearlythathecaughtthefirstbus.Itssuchagoodchancethatwemustnotmissit.Tosuchandegreewasheexcitedthathecouldntsleeplastnight.无忧无忧PPTPPT整理发布整理发布66、条件状语从句、条件状语从句常用引导词:
if,unless,特殊引导词:
as/solongas,onlyif,providing/providedthat,supposethat,incasethat,onconditionthat例句Wellstartourprojectifthepresidentagrees.Youwillcertainlysucceedsolongasyoukeepontrying.Providedthatthereisnoopposition,weshallholdthemeetinghere.无忧无忧PPTPPT整理发布整理发布7、让步状语从句、让步状语从句常用引导词:
though,although,evenif,eventhough特殊引导词:
as(用在让步状语从句中必须要倒装),while(一般用在句首),nomatter,inspiteofthefactthat,while,whatever,whoever,wherever,whenever,however,whichever例句MuchasIrespecthim,Icantagreetohisproposal.尽管我很尊敬他,我却不同意他的建议。
Theoldmanalwaysenjoysswimmingeventhoughtheweatherisrough.Nomatterhowhardhetried,shecouldnotchangehermind.Hewontlistenwhateveryoumaysay.无忧无忧PPTPPT整理发布整理发布88、比较状语从句、比较状语从句常用引导词:
as(同级比较),than(不同程度的比较)特殊引导词:
themorethemore;
justas,so;
AistoBwhat/asXistoY;
nomorethan;
notAsomuchasB例句Sheisasbad-tempe