九大状语从句重难点讲解

1、状语从句分类：（九大类）时间、地点、原因、条件、让步、结果、目的、方式、比较。Part1时间状语从句：最常用的连接词：Whenwhile,as,before,after,assoonas,until,notuntil次常见的连接词：Themomentminute,immediately,hardly-when,nosoonerthan问题一：Wewewswimminginthelakesuddenlythestormstarted.AwhenBwhileCuntilDbeforeHewasabouttotellmethesecretsomeonepattedhimontheshoulderAa

2、sBuntilCwhileDwhen-DidJackcomebackearlylastnight?-Yes,itwasnotyet8:00hearrivedhome.AbeforeBwhenCthatDuntilHewasabouthalfwaythroughhismealafamiliarvoicecametohisears.AwhyBwhereCwhenDwhile一、时间状从中连接词when的用法小结：1、when引导的时间状从的谓语动词可以是可延续的，也可以是表短暂性的动词，可用于主句和从句动作同时发生或从句动作先于主句动作。例：Whenthefilmended,thepeoplewe

3、ntback.WhenIlivedthere,IusedtogototheseashoreonSundays.,相当于andatthisthattime.常用于2、可用作并列连词，其意义是“那时，这时”以下句式：wasabouttodosth.when-Abe(onthepointof)doingsth.when(刚要这时突然)e.g.IwasabouttostoppretendingtobeinglisteningtotheclasstolistentowhattheteacherssaidwhenMr.Lishoutedatmesoloudlythatthewholeclasscanhea

4、r.3、还可以表示原因“既然”，相当于since,consideringthat.如：Itwasfoolishofyoutotakeataxiwhenyoucouldeasilywalktherein5minutes.问题二：ThecostoflivinginGlasgowisamongthelowestinBritain,thequalityoflifeisprobablyoneofthehighest.AsinceBwhenCasDwhileIacceptthatheisnotperfect,Idoactuallyliketheperson.AWhileBSinceCBeforeDUnle

5、ss二、时间状从中连接词while的用法小结：1、while引导的动作必须是持续性的，强调某一段时间内，主从句动作同时发生，或主从句中的动作或事物在从句中的动作或事情的进展过程中发生。如：Pleasedon'ttalksoloudwhileothersareworking.2、while作为并列连词，意为“然而，去，表示对比。IwasreadingwhilemyfatherwaswatchingTV.3、while可表示尽管，相当于althoughIhavetogiveupbecauseofyouwhileIlikeitsomuch.问题3:Igetolder,Igetmoreopti

6、mistic.Hehurriedhome,lookingbehindhewent.hewasgoingout,itbegantorain.ASinceBWhenCAsDWhile三、只用as,不用when或while的情况1、用于表示同一个人的两种动作交替进行，指“一边边”，如：Thegirlsingsasshegoestoschool.2、表示两个同步发生的动作或行为，如：Astimewentby,shebecamemoreandmorebeautiful.3、表示两个动作紧跟着发生，如：Ashewasgoingout,isbegantorain,4、接在名词后面表示某一个年龄段时。如：As

7、ayoungman,hewasactiveinsports.四、连接词when,while,as的用法区别：1、while引导的时间状语从句的谓语动词必须是可持续的，而when引导的时间状语从句的谓语动词既可以是可持续的，也可以是表短暂性动作的动词。WhenWhilehewaseatinghisbreakfast,heheardthedoorbellrang.WhenIstoppedmycar,amancameuptome.（while不可用）2、从句动作发生在主句动作之前时，只能用when引导，不可用whileas,如：Whenyouhavefinishedyourwork,youmayha

8、vearest.3、表示“随着"，连词用as,不用whenwhile,如：Astheelectionapproached,theviolenvegotworse.4、如果主句表示的是短暂性的动作，从句用延续性动作的进行时态表示一段时间内正在进行的动作时，三者可互相交换使用。如：WhenWhileAsIwaswalkingdownthestreet,Icameacrossanoldfriendofmine.五、其他引导时间状语从句的连接词：1、一些词，如themomentminuteinstant,immediately,directly,instantly,hardlywhen,no

9、soonerthan等，也可因的一个时间状语从句，相当于assoonas的意思。如：e.g.Wewillcomeacrossthissituationthemoment(when)yourmostimportantrelativesleaveyou.Itisnotwisethatwestopourlessonimmediately(when)thebellringsifwecan'tfinishourtask.2、一些含有time的名词短语，如everyeachnexttime,bythetime等，以及thedayyear,themorning等也可以引导一个时间状语从句。如：e.g

10、.Somanythousandsofpeoplediedeverytimetherewasanoutbreak.Thedayhereturnedhome,hisfatherwasalreadydead.Nexttimeyoucome,pleasebringyourIDcard.3、如果hardly或nosooner或scarcely置于句首，句子必须用部分倒装结构。如：HardlyhadIgothomewhenitbegantorain.问题4:-Washisfatherverystrictwithhimwhenhewasatschool?-Yes,hehasneverpraisedhimhe

11、becameoneofthetopstudentsintheclass.A、afterBunlessCuntilDwhenAgoodstorytellermustbeabletoholdlistenerscuriorityhereachestheendofthestory.AwhenBunlessCafterDuntilItwasnotshetookoffherdarkglassesIrealizedshewasafamousfilmstar.Awhen;thatBuntil;thatCuntil;whenDwhen;then六、till,until和notuntil用法：1、untiltil

12、l引导时间状语从句用于肯定句中时，主句的动词时延续性动词，表示动作或状态一直持续到untiltill所表示的时间，意为“某动作一直持续到某时间点才停止”，译为“直到为止”。Youmaystayhereuntiltherainstops.2、用于否定句时，主句谓语动词时非延续性动词，从句为肯定，意为“直到才”，如：Hewouldn'tgotobedtill/untilhehadfinishedthework.3、until可以置于句首，till不行。如：Untilyoutoldme,Ihadnoideaforit.4、notuntill句型中的强调和倒装说法：Itiswasnotunti

13、lthatNotuntil+从句+助动词+主句。例：e.g.itwasnotuntilyoutoldmethatIhadsomeideaforit.NotuntilyoutoldmedidIhaceanyideaforit.七、连接词before的小结：1、词义：TheAmericanCivilWarlastedfouryearsbeforetheNorthwonintheend.（在之后，才）HerushedoutoftheroombeforeIcouldsayaword.（还没来得及，就）ItwaseveningbeforewereachedthelittletownofWinster.（

14、在之前就）Hemakeamistake,butthenhecorrectedthesituationbeforeitgotworse.（没等就）2、其他句型：1、it+（will/would）be+时间段+before过了（多长时间）才”Itwillbesometimebeforeweknowwhetherthedrugtakeseffectornot.Itwasquiteafewyearsbeforehefinallyfinishedthenovel.2、it+（will/would）benot+时间段+before过不了多久就”Itwillbenotlongbeforeahelicopte

15、rarrivedonthescenetorescuethesurviorsoftheaircrash.Itwasn't2yearsbeforeyougotojoininthefinalexamination.3、it+be+日寸间点+before"发生日寸，是（时间）”Itwasnotyet8:00beforehearrivedhome.八、连接词since的用法：注：since的用法主要有两点：一是表示“自从以来”，二是表示“既然”。1、 若since引导的状语从句的谓语动词是终止性的过去时，则从句表示的时间是“从动作开始的那一刻起”。如：Hehasstudiedveryh

16、ardsincehecametoourschool.Wehavebeenmissingthemsincetheylefthere.2、 若since引导的状语从句的谓语动词是持续性动词或表示状态的动词的过去时时，则从句表示的时间是“从持续动作或状态结束时算起”。如：Ihaven'theardanynoisesinceIslept.Sleep为持续性动词，sleep的动作结束时，即“醒来”时，译为“我醒后还未听到任何声响。”JohnisnowwithhisparentsinNewYork.Itisalready3yearssincehewasateacher.3、 若since引导的状语

17、从句的谓语动词是持续性动词的现在完成时则表示动作和状态延续到现在(说话时)，其表示的时间的起点应从动作之时算起。如：Ihaven'theardfromhimsincehehaslivedthere.这里的haslived表示动作的持续性，时间的起点应从“开始居住”时算起，“自从他(开始)住在那儿，我就一直没有收到他的来信”Sincewehaveownedacar,wehavegonecampingeveryyear.4、 句型itis+一段时间+since与ithasbeen+一段时间+since意思相同，时间的计算从since从句的动作完成或状态结束时算起。但是，在该句型中，sinc

18、e从句中同样存在着谓语动词的终止性和延续性的区别。例：Itis2yearssinceheleftthecountry.Itis3yearssincetheWhiteswereinLondon.Itis5yearssincetheboybecameayoungpioneer.()Itis5yearssincetheboywasayoungpioneer.()part2地点状从part3原因状从part4比较状从part5目的状从part6结构状从part7条件状从问题5:TheWTOcannotliveuptoitsnameitdoesincludeacountrythatishometoone

19、fifthofthemankind.AaslongasBwhileCIFDeventhoughItisknowntoallthatyouexerciseregularly,youwon'tkeepgoodhealth.AunlessBwheneverCalthoughDif1、 unless=ifnot,意思是“除非”、“如果不就”.1 cansee,thereisonepossiblewayyokeepawayfromthedanger.AaslongasBAsfarasCJustasDEvenifIalwaystakesomethingtoreadwhenIgotothedoctor'sIhavetowait.AincaseBsothatCin