九种常见的状语从句时间.地点.原因.条件.让步.结果.目的.方式.比较.时间状语从句常用when/while/as/after/before/Since/until/assoonas/hardly…When等引导Whenwhilewhen用于主句和从句动作同时发生或从句动作先于主句动作.还可用作并列连词,意为“在这/那时”相当于atthis/thattime,常用于下列句式:Somebodywasdoingsthwhen…Somebodywasabouttodo/goingtodowhenSomebodyhadjustdonesth,when…Eg:Wewereabouttosetoffonourway,whenitsuddenlybegantorain.while引导的动作必须是连续性的,侧重主句动作与从句动作对比.Eg:Pleasedon’ttalksoloudwhileotherareworking.Assoonas/themoment/once这些从属连词引导的从句都表示从句的动作一发生,主句的动作随即发生,常译为“一…就”,从句中用一般时态代替将来时态Eg:Onceyourememberit,youwillneverforgetit.当把nosooner/hardly等提到句首时,应用倒装语序.Eg:Ihadhardlygothomewhenitbegantorain.Till/until/notuntil肯定句中主句谓语动词必须是延续性动词,意为:某动作一直延续到某时才停止.否定句中主句谓语动词必须是非延续性动词,意为:某动作直到某时才开始.Eg:Hewon’tgotobeduntiltherainstops.Before/since表达“还未…就…”“不到…就…”“…才…”,用连词beforeEg:Wehadn’trunamilebeforehefelttired.Before从句中谓语不用否定式.Itwillbe+段时间+before多久后才Eg:ItwillbehalfayearbeforeIcomeback.since从句的谓语动词一般是非延续性动词,主句的谓语动词是延续性或反复发生的从句时态若是一般过去时,主句的时态是现在完成时或现在完成进行时.Eg:IhavewrittenhomefourtimessinceIcomehere.地点状语从句用连接副词where/wherever引导Eg:Juststaywhereyouare.注意:表示抽象条件时,从句需放在主句前Wherethereisawill,thereisaway.原因状语从句由because/as/since/nowthat等引导Because能回答why,语气强,可置于主句前或后.Since/nowthat(既然)不能回答why,置于主句前.Eg:Sincewelivenearthesea,wecanoftengoswimming.介词短语引导状从:becauseof/thankstoFor加分词也可表原因,可对前面的分词起补充说明的作用.目的状语从句由sothat/inorderthat/forfearthat/inCase等引导,从句中谓语动词常用may/can/Should等情态动词.Eg:Inorderthatwecouldcatchthebus,wegotupearly.结果状语从句由sothat/so…that/such…that/too…to等引导so+adj/adv+that从句so+adj+a/an+可数名词单数+that从句so+many/much/few+n.+that从句such+a/an+adj+可数名词单数+that从句such+adj+复数名词/不可数名词+that从句such+alotof/lotsof+n.+that从句Eg:Mikeissuchanhonestworkerthatweallbelievehim.=Mikeissohonestaworkerthatweallbelievehim.条件状语从句由if/unless/aslongas(只要)/incase/suppose(假设,如果)Eg:You’llfailtheexamunlessyoustudyhard.让步状语从句引导让步状语从句的从属连词有1.although/though,eventhough/evenifEg:Heisunhappy,though/althoughhehasalotofmoney.2.As引导让步状语从句需倒装。Eg:Childasheis,heknowsalot.方式状语从句由as/asif/asthough引导方式状语从句应放在主句之后,其中asif/asthough引导的从句一般用虚拟语气.Eg:Theoldladytreatstheboyasifhewereherownson.比较状语从句1、Wethoughttherewere35studentsinthedininghall,(),infact,therewere40.A、whileB、whetherC、whatD、which2、It’salmostfiveyears()wesaweachotherlasttime.A、untilB、sinceC、afterD、when3、Hetiredhisbesttosolvetheproblem,()difficultitwas.A、howeverB、nomatterC、althoughD、whatever4、--Mom,whatdidyourdoctorsay?--Headvisedmetolive()theairisfresher.A、inwhereB、inwhichC、theplacewhereD、where5、()environmentaldamageisdone,itmakesmanyyearsfortheecosystemtorecover.A、EvenifB、IfonlyC、WhileD、Once6、Hisplanwassuchagoodone()weallagreedtoacceptit.A、soB、andC、thatD、as7、Thisisaveryinterestingbook,I’llbuyit().A、howmuchmaycostB、nomatterhowitmaycostC、howevermuchitmaycostD、howmayitcost8、Hewasabouthalfwaythroughhismeal()afamiliarvoicecametohisears.A、whyB、whereC、whenD、while9、Ihurried()Iwouldn’tbelateforclass.A、sinceB、sothatC、asifD、unless10、Hetransplantedthelittletreetothegarden()itwasthebesttimeforit.A、whereB、whenC、thatD、until11、()hestartedoffatonceA、HardlyhehadreceivedthetelegramthanB、HardlyhadhereceivedthetelegramwhenC、NosoonerhehadreceivedthetelegramthanD、Nosoonerhadhereceivedthetelegramwhen12、()theweatherwasfine,Iopenedallthewindows.A、AsB、ForC、BecauseofD、Sincethat13、()heworkedallday,hecouldn’tfinishthejob.A、AlthoughB、EvenC、AsD、Inspiteof14、Franisanhonestgirl;Isayit,()Idon’tlikeherA、eventhoughB、asifC、aslongasD、asthough15、Howlongisit()welastspendtheholidayinthecountrytogether?A、untilB、beforeC、sinceD、that16、InsomeofAntonioGauldi’sarchitecture,thewallsseemtobecoveredwithskinofafish,()therooflookslikethebackofadragon.A、orB、soC、whileD、for17、Itwon’tbequietalongtime()sheisbackagain,sodon’tbetoocrosswithher.A、thatB、sinceC、beforeD、until18、Dawsonhadhighergoals()othersmighthavebeensatisfied.A、whenB、whatC、whereD、which19、Thesestoriesexpressedthesameideathatallindividuals,()poor,wecapableofbecomingwealthy()theywerehardworkingandhonest.A、however;eversinceB、nomatterhow;solongasC、whatever;inorderthatD、nomatterwhat;aslongas20、()wecan’tgetthenecessaryequipment,whatwouldwedo?A、ThinkB、GuessC、SupposeD、Figure