状语从句课件-2024届高考英语一轮复习

状语从句状语是句子中的一个重要附属成分，从情况、时间、处所、方式、条件、对象、肯定、否定、范围和程度等方面对谓语中心词进行修饰、限制。状语从句（副词性从句）是在句子中做状语的，起副词作用的从句。状语从句可以修饰谓语、非谓语动词、定语、状语或整个句子。概念分类状语从句时间状语从句条件状语从句让步状语从句结果状语从句原因状语从句地点状语从句目的状语从句方式状语从句比较状语从句时间状语从句1.when,while,as引导的时间状语从句when引导的从句动作与主句动作可以同时发生也可以先后发生，动词可用延续性也可用非延续性

Iwasreadingabookwhenheenteredtheroom.Iknockedaboywhenhepassedby.HealwaysbothersmewhenIamworking.时间状语从句while引导的从句动作与主句动作同时发生，动词用延续性

Iwasreadingabookwhilehewasdoinghishomework.as强调主从句动作相伴发生，“一边...一边...;随着...”

Astimegoeson,hewillunderstand.WewatchTVasweeat.2.before,since引导的时间状语从句

before：在...之前，才，不久

常考句型：

a.Itwill(not)be+时间段+before...“要过多久...才/过不了多久...就”Itwillbealongtimebeforetheprofessorfinisheshisdictionary.Itwon’tbealongtimebeforehecomesback.时间状语从句b.Itwasnotlongbefore...“不久就...”

Itwasnotlongbeforehetoldmethetruth.c.Itwas+时间段+before...“过了...才...”

Itwastwoyearsbeforewemetagain.时间状语从句时间状语从句since：自从...,...以来

Itis/has+一段时间+since...（一般过去时）“自从...已经过了...”

IthasbeenfiveyearssinceIcametothetown.

ItisamonthsinceIbegantostudyGerman.3.表示“一...就...”的单词短语引导的时间状语从句a.assoonas:主将从现/主从都用一般过去时

Assoonashecomes,wewillsetoutforShanghai.b.themoment,theminute,theinstantIwantedtocallathimtheminute/second/instanthearrived.c.immediately,directlyWe'llcomedirectlywehavefinishedthework.d.hardly/scarely...when...,nosooner...than...（主句过完，从句一过）Shehadhardlyhadtimetositwhenthephonerangagain.时间状语从句时间状语从句4.until/till引导的时间状语从句

a.until/till用于肯定句时，主句谓语动词用延续性Iwillwaitforyouuntil/tillyoucometoseeme.b.until/till用于否定句时，主句谓语动词可用延续性或非延续性Ididn’tgotobedunitIfinishedmyhomework.c.notunit位于句首，主句部分倒装

NotuntilTomcameindidwestoptalking.条件状语从句常考引导词:if,unless,solongas,incase,onlyif,onconditionthat...

Supposehecan'tcome,whowilldothework?Themeetingwouldbeputoffincaseitshouldrain.时态：主将从现IwillgotohospitalifIamfreetomorrow.Shewasallowedtogobackonconditionthatshewouldsleep.让步状语从句常考引导词although,though:尽管，可与yet,still,nevertheless连用，不能和but连用

Thoughheseemshappy,yetheisworried.Hesayshe'llpay,thoughIdon'tthinkhewill.as：

从句倒装Successfulasheis,heisnotproud.while：尽管

Whileheisugly，heissmart.让步状语从句常考引导词evenif/though

EvenifIamyoung,Icanmanageit.nomatter+疑问词/疑问词+ever

Nomatterwhat/Whateverhefaces,hewillnevergiveup.whether...ornot

Whetheryoubelieveitornot，it'strue.结果状语从句a.so+形容词/副词+that...HerunssofastthatIcan’tcatchupwith.ItissointerestingamoviethatIcan’twaittowatch.b.such+名词+that...

ItissuchaninterestingmoviethatIcan’twaittowatch.Theyaresuchgoodstudentsthattheteachersalllikethem.原因状语从句because：回答why的问题，语气最强

Hecan’tcomebecauseheisill.since/nowthat：既成事实的原因

Since(nowthat)you'rehere,youcanhelpme.as：双方都知道的原因，主句说明结果

Asitwasraining,thematchwascancelled.地点状语从句常用where/wherever引导，位于主句前，中或后Staywhereyouareanddon’tmove.

Wherethereisawill，thereisaway.

Whereverthereissmoke，thereisfire.目的状语从句sothat，inorderthat“为了，以便”（从句用情态动词）Herunsfastsothathecangetonthefirstbus.

Inorderthathecanfinishthework,hedidn’tsleepforawholenight.forfearthat,incase,“以防”(从句中的谓语动词用should/might/could+动词原形)IwillnotmakeanoiseforfearthatIshoulddisturbyou.Hetakesatorchincaseitgetsdarkbeforehereturns．方式状语从句as“按照”Youshouldwaitinlineasothersdo.HedidasIhadasked.asif/asthough（从句可以虚拟）Theboytalksasifhewereanoldman.Shepausedasifshewaswaitingforhimtospeak.比较状语从句than“比...”，用形容词或副词的比较级