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并列连词并列关系and和(用于肯定句);or也不(用于否定句)e.g.Godownthisstreetandyoullfindtherestaurant.Idontlikemilkortea.both...and和......都(谓语动词用复数)e.g.Bothmyauntandmyunclearedoctors.notonly...butalso不仅而且;neither...nor....既不.也不...…(就近原则)e.g.Notonlyyoubutalsoshewantstogoswimming.aswellas也又(谓语动词的数要与第一个名词或代词保持一致)e.g.SheaswellasIisgoodatplayingthepiano.选择关系or否则e.g.Workhardoryouwillfailtheexam.either...or...要么要么(就近原则)e.g.EitheryouorIamright.ratherthan而不是e.g.Heisafamilyratherthanafriend.whether...or...是还是e.g.Pleasetellmewhethertocontinueorstop.not...but...不是而是e.g.Heisnotadoctorbutanurse.转折关系but但是;(放于句中)however然而(句首、句中或句末;必须用和句子隔开)e.g.IreallywanttogotherebutIhavetodomyhomeworkfirst.Tomfailedtheexam.Howeverhedidntgiveup.while然而(常连接内容或结构对称的句子,用于对比)e.g.Lucyisenthusiasticwhileherbrotherisquiteindifferent.因果关系so因此(+表示结果的句子);for因为;由于(补充说明理由,不放句首)e.g.Heisabsenttodayforhehadafever.IamsoboredsoIwanttogooutforfun.从属连词引导时间状语when当……的时候(引导的从句谓语v.可以是延续或非延续性;主从句动作可同时发生,也可先后发生);e.g.WhenIgototherestaurantIfoundthatalltheseatswerebooked.while当……的时候;(引导从句谓语动词只能是延续性,主从句同时发生)e.g.WhileIwasplayingcomputergamesmymomwasdoingthehousework.as当……的时候;一边……一边……(引导持续性动作,主从句同时发生)e.g.IreadthebookasIwalkedalongthelake.assoonas一就(主将从现)e.g.AssoonashecallsTiltellyou.until直到;(主句谓语动词延续)e.g.MymotherwaiteduntilIcameback.not...until...直到才(主句谓语动词非延续)e.g.Ididntcomebackuntilmymothercallme.since自从(引导的时间状语从句,从句常用一般过去时,主句常用现在完成时)Itis+时间段+since从句e.g.IhavebeenheresinceIwasoneyearold.after在之后before在之前引导条件状语从句if如果;aslongas只要;unless除非(主将从现)e.g.Youwillmissthetrainunlessyouhurryup.=Ifyoudonthurryupyouwillmissthetrain.Aslongasyoustudyhardyouwillsucceed.弓I申succeedv.成功successn.成功successfuladj.成功的successfullyadv成功地引导原因状语从句because因为(表示直接原因,用来回答why引起的问句,不能和so出现在一个句子里)e.g.Twaslateforschoolbecausemyalarmclockdidntwork.since因为;既然(语气比because弱,从句常位于主句前)e.g.Sinceeveryoneisherelefsbeginourmeeting.as由于(语气最弱,常说明比较明显的原因)e.g.Asitisrainyoutsidewewilltaketheumbrellas.引导目的状语从句sothat为了;以便inorderthat以便;为了(主句主语和从句主语一致时,可用soastodo/inordertodo替换)e.g.Heworkeddayandnightsothat/inorderthathecouldpasstheexam.=Heworkeddayandnightsoasto/inordertopasstheexam.引导结果状语从句so因此so+adj./adv.+that从句e.g.ThisboxissoheavythatIcantcarryit.so+adj.+a/an+单数n.+that从句=such+a/an+adj.+单数n.+that从句e.g.Sheissolovelyagirlthatwealllikeher.=Sheissuchalovelygirlthatwealllikeher.such+adj.+可数n.复数/不可数n.+that从句e.g.Theyaresuchkind-heartedteachersthatpeopleinthetownallrespectthem.somany/much/little/few+n.+that从句e.g.HehassomanybooksthatIcantcountthem.so...that...=too...to...=(not)...enoughtodosth.e.g.Heissoyoungthathecantgotoschool.=Heistooyoungtogotoschool.=Heisnotoldenoughtogotoschool.引导让步状语从句though/although虽然(不能和but出现在同一个句子里)evenif/eventhough即使引导宾语从句if/whether是否e.g.Canyoutellmeif/whetherhewillcometomorrowwhen什么时候e.g.Iwanttoknowwhenhewillbebacktomorrow.why为什么e.g.Iwanttoknowwhyhewaslateforschoolyesterdaywhere在哪里that(没有具体含义)e.g.Weknowthattheearthgoesaroundthesun.引导定语从句that/who/which/whom/when/where/why/whosee.g.Thisisthevillagewherehewasbom.。