【2022】高中英语状语从句知识点

PAGEPAGE4高中英语状语从句一、概念：状语通常由副词、介词短语、动词不定式、分词和从句等担当。握引导不同状语从句的常用连接词和特殊的连接词。二、分类及使用时间状语从句when①.whenwhenyouapplyforajob,youmustpresentyourcredentials.when还可表示justthen（正在那时）wewereabouttostartwhenitbegantorain.asas翻译成一边，一边。Wewerehavingbreakfastasshewascombingherhair.while…before引导①before“在I’llbebackbeforeyouhaveleft.②before“…之后才”Itmaybemanyyearsbeforewemeetagain.assoonas/once/directly/theinstant等引导assoonas是最常见的表示“一…就”的从属连词，其他连词还有immediately，instantly，theinstant(that)，theminute(that)，themoment(that)等，它们通常都可与assoonas换用。Assoonaswegothome,thetelephonerang.IrecognizedherimmediatelyIsawher.hardly...when/nosooner...than引导关联从属连词hardly/barely/scarcely...when和nosooner...than导的从句中的谓语动词通常为过去完成时。如：Hehadnosooner(nosoonerhadhe)arrivedhomethanhewasaskedtostartonanotherjourney.since引导在含有since谓语动词通常为现在完成时、过去完成时和一般现在时：We’venevermetsincewegraduatedfromthecollege.大学毕业后我们就再没见过面。till/until引导 till和until同义，作“直…时为止)”解Donaldwillremainincollegeuntil(till)hefinisheshisPh.Dcourse.地点状语从句where引导 “在（或到的地方”Wherethereisawill,thereisaway.wherever引导wherever=nomatter后者只能放句首。Whereever(nomatterwhere)theywent,theexpertswerewarmlywelcomed.原因状语从句because引导通常用于回答whyIgoabroadwithherbecauseIaffordit.as引导 从句多位于主句之前，通常可以和since换用AsIknowtheaskedapoliceman.since引导从句多位于主句之前，可以和as换用。Sincetravelingbyairismuchfaster,theydecidedtotakeaplane.now(that引导的原因状语从句now(thatyouhavepassedyourtestyoucandriveonyourown.seeing(that引导的原因状语从句Seeing(thatSeeing(that)theweatherisstayathome.目的状语从句inorderthat引导“为了；以便sothatTheystoppedatHangzhouinorderthattheycouldgoaroundWestLake.so(that)sothat通常可以与inorderthat换用，它所引导的目的状语从句总是放在主句之后，在非正式文体中，常省略that。如：Speakclearlysothattheymayunderstandyou.incase/forfear等引导incase，forfear(that)incase所引导的从句中的谓语动词可以是陈述语气形式，也可以是虚拟语气形式；forfear(that)引导的从句中的谓语带有may，might，should等情态动词Takeyourumbrellaincaseitrains.Hetookanumbrellawithhimforfearthatitmightrain.结果状语从句sothat引导 从句只能位于主句之后that引导什么从句根据句意来判断Suddenlyitbegantorainheavily,sothatitwasalmostimpossibletocarryondriving.so...that引导thatso后面接形容词或副词。Shespokesofastthatnobodycouldcatchwhatshewassaying.such...that引导的结果状语从句引导结果状语从句的such...that的具体内容是：such+a/an+形容词+名词+that从句。such+a/an+形容词+单数名词+that=so+形容词+a/an+单数名词+that从句。Theprofessortoldussuchafunnystorythatallthestudents=Theprofessortoldussofunnyastorythatallthestudentslaughed.条件状语从句if引导译成“如果”IfIwereabird,Iwouldfly.unless引导否定条件状语从句，在意义上相当于if...notbelateunlessyouhurry.ifonly引导意为“只要；如果I’llletyouusethecarifonlyyoukeepitingoodcondition.as/solongas引导意为“只要；如果Aslongasitdoesn’train,vided(that)/providing引导意为“如果；只要Iwillagreetogoprovidingthatmyexpensearepaid.让步状语从句although/though引导都作“虽然；尽管”解，通常可以换用，Althoughtheyhavebeentalkingforalongtime,hecannotmakeherbelievehim.evenif/though引导EvenifIfailedagain,Iwillnotgiveuptheexperiment.while引导WhileIunderstandyourpointofview，Idonotshareit.whatever/nomatterwhat引导作“无论什么”解，Whatever/Nomatterwhathesays，don’tgo.whichever/nomatterwhich引导作“无论哪个”解Whichever/Nomatterwhichyoubuy，thereisasix-monthguarantee.whoever/nomatterwho引导作“无论谁”解Youcomewhoeveryouare.however/nomatterhow…”解Howeverhighitmaybe，itcan’treachthesky.whenever/nomatterwhen引导作“无论何时”解，WheneverI’munhappy，hecheersmeup.as此时要用倒装句Strongasyoumaybe,youcannotliftit. Lateasitwas,theycontinuedtostudy.方式状语从句as引导Airistomanaswateristofish.asif/asthough引导作“好像，仿佛”解。从句往往用虚拟语气，表