时间状语从句.ppt
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时间状语从句.ppt
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AdverbialClauses(状语从句)(状语从句)1.AdverbialClausesofTime:
(时间状语从句)DifferentKindsofAdverbialClauses:
2.AdverbialClausesofReason(原因状语从句)3.AdverbialClausesofConditions(条件状语从句)4.AdverbialClausesofPlace(地点状语从句)5.AdverbialClausesofPurpose(目的状语从句)6.AdverbialClausesofResult(结果状语从句)7.AdverbialClausesofComparison(比较)8.AdverbialClausesofConcession(让步)9.AdverbClausesofManner(方式状语从句)I.时间状语从句时间状语从句:
when,while,as,after,before,since,until/till,assoonas,hardly/scarcelywhen,nosoonerthan,everytime,eachtime,themoment,theminute,thesecond,bythetime,immediately.一、when/while/asWhen+
(1)延续性动词e.g.WhenIwasyoung,Ilikeddancing.
(2)瞬间性动词(不能用不能用while)e.g.Itwassnowingwhenwegottotheairport(3)表示“这时”“正在这时候”e.g.Iwaswalkingonthestreetwhensuddenlysomeonepattedmeontheshoulder.(4)主从句动作先后发生(不能用不能用while)e.g.WhenIgottothecinema,thefilmhadalreadybegun.While+
(1)延续性动词e.g.WhileIslept,athiefbrokein.
(2)表示两种情况对比,“然而”“而”e.g.Theyweresurprisedthatachildshouldworkouttheproblemwhiletheythemselvescouldnt.(3)表示“趁着时候”(强调主从句动作同时发生).e.g.Strikewhiletheironishot.As侧重主从句动作同时发生,常译为“一边一边一边一边.”e.g.Thestudentstooknotesastheylistened.)“随着随着”e.g.Astimegoesby,wehavegainedmoreandmoreknowledge.注意若主句谓语是短暂性动作,从句用延续性动词的进行时态表示在一段时间内正在进行的动作时,三者可以互换!
When/While/AswewerehavinganEnglishclass,astrangerbrokein.Practice_lwaswalkingdownthestreet,Isawsomepolicemen_theyheardthenews,theyweresurprisedTheyshoutedslogans_theypassedthesquare.When/While/AsWhenas二、before常见句型常见句型:
Itwillbe+一段时间一段时间+before.Itwas+一段时间一段时间+before.ItwontbelongbeforeItwasntlongbefore肯定句意为肯定句意为“多长时间后才多长时间后才”否定句意为否定句意为“用不了多长时间就用不了多长时间就”Itwillbealongtimebeforewefinishthisdictionary.我们需要很长的时间才把这部词典编译完。
Itwasnotlongbeforethethiefwascaught.小偷不久就被抓住了。
beforeItwillbehalfayearbeforeIcomeback.Itwontbehalfayearbeforewemeetagain.Wesailedfourdaysandnightsbeforewesawtheland.Wehadntrunamilebeforehefelttired.肯定句肯定句“才才”否定句否定句“就就”itwillbe+一段时间一段时间before.多久之后才多久之后才.itwontbe+一段时间一段时间before.不久就不久就.1.Scientistssayitmaybefiveorsixyears_itispossibletotestthismedicineonhumanpatients.2.Hewastoldthatitwouldbeatleastthreemonths_hecouldrecoverandreturntowork.3.Someonecalledmeinthemiddleofthenight,buttheyhungup_Icouldanswerthephone.beforebeforebefore三、after例:
1、HecametoseemeafterIarrived.2、Immediatelyafterhewashurt,hewastakentothehospital.注:
before和after引导的状语从句,主从句发生的动作先后顺序很明确,因此after从句中的谓语动词常常使用一般过去时来代替过去完成时。
Afterhe(had)finishedhishomework,Tombegantoplaycomputergames.三Since注意since引导的时间状语从句,主句常用完成时,从句常用一般过去时。
Hehaswrittentomefrequentlysincehewasill.句型Itis/hasbeen+一段时间+since,如果从句是延续性动词,,用一般过去时和现在完成时不同。
Itis/hasbeentwoyearssincehewasinthearmy.他离开军队两年了。
Itis/hasbeentwoyearssincehehasbeeninthearmy.他当兵两年了。
1.-Howlong_theshop_open?
-Since1992.(=Since15yearsago)2.-Sincewhen_thecountry_opentointernationaltrade?
-1978,Isuppose.3._5years_hegraduatedfromcollege._2years_hesmoked.hasbeenhasbeenItissinceItissincePracticeitis+时间时间+sincebeforewhenthatItisfiveyears_hefinishedhisresearch.Itwasfiveyears_hefinishedhisresearch.Itwasfiveyearslater_hefinishedhisresearch.Itwas5oclock_hegothome.Itwasat5oclock_hegothome.whenthatsincebeforethat四、名词词组引导的状语从句四、名词词组引导的状语从句一些表示时间的名词词组,如:
themoment,eachtime,everytime,thefirsttime,theyear等,也用于引导时间状语从句,这时它们担当着连接词的功能。
_hewenttoShanghai,hepaidavisittohisformerteacherA.ForthefirsttimeB.Thefirsttime_lsawhim,IthoughtofhisfatherA.ThemomentB.AtthemomentThefirsttimeThemomentEachtimehecame,hewouldbringusalotofflowers-DidyouremembertogiveMarythemoneyyouowedher?
-Yes.Igaveittoher_Isawher.themomenttheminutetheinstantPractice1.WheneverytimeIwasintrouble,hewouldcometohelpme.2.Atnexttimeyoucome,dorememberbringyoursonhere.3.ForthefirsttimeImetthegirl,Ifeltinlovewithher.4.Youarewelcometocomebackatanytimeyouwantto.5.AtthelasttimeshesawJames,hewaslyinginbed.语法规则:
语法规则:
everytime,eachtime,nexttime,thefirsttime,anytime等名词短语引导状语从句不加介词。
等名词短语引导状语从句不加介词。
关连词组hardly/scarcelywhennosoonerthanassoonas三种句子结构表示“一就”。
注意:
时态assoonas以一般时态代替将来时态nosooner,hardly,scarcely后的句子用过去完成时,than/when后的句子用一般过去时。
倒装当hardly或nosooner位于句首时,要倒装。
五、一五、一就就我一到达上海就给你打电话。
我一到达上海就给你打电话。
时态要求:
时态要求:
改改错错:
Ihardlygothomewhenitbegantorain时态要求:
时态要求:
IwillcallyouassoonasIarriveinShanghai.had以一般现在时代替将来时以一般现在时代替将来时主句用主句用haddone,从句用从句用didnosooner.than,hardly.when,scarcely.whenHehadhardlyarrivedwhenitbegantosnowHardly_whenitbegantosnowWehadhardlywalkedintothehallwhenthelecturestartedHardly_walkedintothehallwhenthelecturestarted_shegonetosleepthanthetelephonerangoncemore_theboyreachedthedoorthanhecamebackhadhearrivedhadweNosoonerhadNosoonerhad倒装六、until/tilluntil/till“直到止”(肯定句,主句是延续性动词);Illwaiteuntil/tilltheconcertisover(till不能放在句首,但是until了的位置不受限制)notuntil“直到才”hedidntleavetheofficeuntilhefinishedthetask.注意:
倒装句、强调句,及位于句首时,只能用until。
NotuntilIreturneddidshefinishherhomework.ItwasnotuntilIreturnedhomethatshefinishedherhomework.1Themeetingdidntstart_everyonewasthereA.becauseB.untilC.whyD.if2Theboy_tobed_hismothercamein.A.wentnot;untilB.didntgo;afterC.went;untilD.didntgo;untilPractice1.MotherwaitedforTomtill/untilfarintothenight.(持续性动词)2
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- 时间 状语 从句
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