一.原因状语从句二.结果状语从句三.练习题姚霞飞孟丹丹张志艳1.定义:说明主句原因的句子叫原因状语从句2.时态:原因状语从句一般都是根据实际情况选用适当的时态。通常是主过从过,主现从现。3.常用引导词:because(因为),since(既然),nowthat(既然),as(由于),for(因为)4.because,since和as的区别:1)①because“因为”,表示直接的原因,语气最强。②why提问的句子,必须用because回答。eg:Istayedathomebecauseitrained.2)since引导的原因状语从句一般放于主句之前表示已知的、显然的理由(通常被翻译成“既然”=nowthat),较为正式,语气比because弱。eg:①Sinceyoudon'ttrusthim,youshouldnotemployhim.eg:②Now(that)youaregrownup,youshouldnotrelyonyourparents.3)as引导原因状语从句时表示附带说明的“双方已知的原因”,含有对比说明的意味,语气比since弱,较为正式,位置较为灵活(常放于主句之前)eg:Asitisraining,you’dbettertakeataxi.4)for引导的是并列句,表示原因,但并不说明主句行为发生的直接原因,只提供一些辅助性的补充说明,for引导的并列句只能放于主句之后并且必须用逗号将其与主句隔开。返回eg:Heseldomgoesoutnow,forheisveryold1.定义:在句中用来作结果状语的句子叫结果状语从句。2.常用引导词:so…that(如此…以致…),such…that(如此…以致…)3.时态:结果状语从句一般都是根据实际情况选用适当的时态。也通常是主过从过,主现从现。4.结果状语从句的句型:结果状语从句的从句部分是补充说明主句中谓语动词发生的结果的,通常位于主句之后。结果从句中通常不用情态助动词,但must,can,could除外。结果状语从句其规律由so与such的不同词性决定。such是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副词。so还可与表示数量的形容词many,few,much,little连用,形成固定搭配。1)so+形/副+that从句eg:Theboyissoyoungthathecan'tgotoschool.2)so+many/few(+复名)+that从句eg:Therearesomanypicture-storybooksthattheboywon'tleave.3)so+much/little(+不可数名词)+that从句eg:Hegavemesolittletimethatitwasimpossibleformetofinishtheworkontime.4)so+形+a/an+单名+that从句eg:Itwassohotadaythattheywantedtogoswimming.5)such+a/an+形+单名+that从句=so+形+a/an+单名+that从句eg:Heissuchayoungboythathecan'tgotoschool.=Heissoyoungaboythathecan'tgotoschool.6)such+形+复名/不可数名词+that从句eg:Theyaresuchfineteachersthatweallholdthemingreatrespect返回5、结果状语从句与简单句的转换:1)so…that(从句为肯定句)=…形/副+enough+(forsb.)todostheg:Heissooldthathecangotoschoolalone.=Heisoldenoughtogotoschoolalone.2)so…that(从句为否定句)=…too+形/副+(forsb.)todosth.eg:TheproblemissohardthatIcan’tworkitout.=Theproblemistoohardformetoworkout.1.____you’vegotachance,youmightaswellmakefulluseofit.A.NowthatB.AfterC.AlthoughD.Assoonas解析:主句与从句之间存在因果关系,且“you’vegotachance”表示一个显而易见的原因,因此应选用表原因的nowthat。2.Hefounditincreasinglydifficulttoread,____hiseyesightwasbeginningtofail.A.andB.forC.butD.or解析:“hiseyesightwasbeginningtofail”是“hefounditincreasinglydifficulttoread”的原因,因此本题应选用可以表示原因的连词for引导原因状语从句。3.Thebookwaswrittenin__easyEnglish__evenprimaryschoolstudentscouldunderstandit.A.so;thatB.such;thatC.too;toD.very;that解析:根据题意从A和B中选,因为easyEnglish是表示简单英语,属于名such修饰名词,所以本题选B4.Zhouliboisshanghai’sfavouritefunnyman.Heisgoodatmakingpeoplelaugh.Hislivelyshouswere__hotthatticketssoldoutinminnutes.A.veryB.tooC.suchD.so解析:从题意可知周立波是一个非常热情的人,句中hot属于形容词所以本题选D.5.--Youstudy__hard__youaresuretopasstheexam.--Thankyouforsayingso.A.enough;toB.as;asC.so;that解析:根据翻译你学习这么刻苦肯定通过考试。hard是形容词所以选C6.Thismeetingis__importantthatyoumustn’tmissit.A.VeryB.suchC.soD.too解析;翻译是如此重要,句中important属于形容词所以选C7.Shewas__angry__couldn’tsayaword.A.so;asB.so;thatC.too;toD.very;that解析:本题翻译是她很生气,都不能怎样怎样。所以根据翻译本题应选B.so…that中文翻译如此……以至于,所以本题选B8.--__goodtimewehadatthepartylastnight.--Yes.Itwas__excitingpartythatIwouldneverforgetit.A.What;soB.How;suchC.Whata;suchanD.Howa;soan解析:本题根据第二个空排除C.D因为exciting属于形容词,so可直接修饰形容词。excitingday也可以用sucha.第一个空根据goodtime表示一段美好时光,所以本题选C