1、一一.原因状语从句原因状语从句二二.结果状语从句结果状语从句三三.练习题练习题姚霞飞姚霞飞孟丹丹孟丹丹张志艳张志艳1.1.定义:说明主句原因的句子叫原定义:说明主句原因的句子叫原因状语从句因状语从句 2.2.时态:原因状语从句一般都是根时态:原因状语从句一般都是根据实际情况选用适当的时态。通常据实际情况选用适当的时态。通常是主过从过,主现从现。是主过从过,主现从现。3.3.常用引导词常用引导词:because(:because(因为因为),),since(since(既然既然),now that(),now that(既然既然),),as(as(由于由于),for(),for(因为)因为)4.
2、because,since和和as的区别:的区别:1 1)because“因为因为”,表示直接的原,表示直接的原因,语气最强。因,语气最强。why提问的句子,必须用提问的句子,必须用because回回答。答。eg:I stayed at home because it rained.2)since2)since引导的原因状语从句一般放于引导的原因状语从句一般放于主句之前表示已知的、显然的理由主句之前表示已知的、显然的理由(通通常被翻译成常被翻译成“既然既然”=now that=now that),),较为正式,语气比较为正式,语气比becausebecause弱。弱。eg:Since you
3、dont trust him,you should not employ him.eg:Now(that)you are grown up,you should not rely on your parents.3)as3)as引导原因状语从句时表示附带说明引导原因状语从句时表示附带说明的的“双方已知的原因双方已知的原因”,含有对比说,含有对比说明的意味,语气比明的意味,语气比sincesince弱,较为正式,弱,较为正式,位置较为灵活位置较为灵活(常放于主句之前常放于主句之前)eg:As it is raining,youd better take a taxi.4)for4)for引导的是
4、并列句,表示原因,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,因,只提供一些辅助性的补充说明,forfor引导的并列句只能放于主句之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。后并且必须用逗号将其与主句隔开。返回返回eg:He seldom goes out now,for he is very old1.1.定义:在句中用来作结果状语的定义:在句中用来作结果状语的句子叫结果状语从句。句子叫结果状语从句。2.2.常用引导词常用引导词:so that(:so that(如如此此以致以致),such that
5、(),such that (如如此此以致以致)3.3.时态:结果状语从句一般都是根时态:结果状语从句一般都是根据实际情况选用适当的时态。也通据实际情况选用适当的时态。也通常是主过从过,主现从现。常是主过从过,主现从现。4.4.结果状语从句的句型: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主句之后。结果从句中通常不用情态助动词,但动词,但must,can,couldmust,can,could除外。结果除外。结果状语从句其规律由状语从句其规律由sos
6、o与与suchsuch的不同词性的不同词性决定。决定。suchsuch是形容词,修饰名词或名词是形容词,修饰名词或名词词组,词组,soso是副词,只能修饰形容词或副是副词,只能修饰形容词或副词。词。soso还可与表示数量的形容词还可与表示数量的形容词many,few,much,littlemany,few,much,little连用,形成固定连用,形成固定搭配搭配 。1)so+形形/副副+that 从句从句 eg:The boy is so young that he cant go to school.2)so+many/few(+复名复名)+that从句从句eg:There are so
7、many picture-story books that the boy wont leave.3)so+much/little(+不可数名词不可数名词)+that从句从句eg:He gave me so little time that it was impossible for me to finish the work on time.4)so+形形+a/an+单名单名+that从句从句eg:It was so hot a day that they wanted to go swimming.5)such+a/an+形形+单名单名+that从句从句=so+形形+a/an+单名单名+t
8、hat从句从句eg:He is such a young boy that he cant go to school.=He is so young a boy that he cant go to school.6)such+形形+复名复名/不可数名词不可数名词+that从从句句 eg:They are such fine teachers that we all hold them in great respect 返回5 5、结果状语从句与简单句的转换:、结果状语从句与简单句的转换:1)so that(从句为肯定句从句为肯定句)=形形/副副+enough+(for sb.)to do s
9、theg:He is so old that he can go to school alone.=He is old enough to go to school alone.2)so that(从句为否定句从句为否定句)=too+形形/副副+(for sb.)to do sth.eg:The problem is so hard that I cant work it out.=The problem is too hard for me to work out.1._ youve got a chance,you might as well make full use of it.A.N
10、ow that B.After C.Although D.As soon as 解析:主句与从句之间存在因果关系,解析:主句与从句之间存在因果关系,且且“youve got a chance”youve got a chance”表示一个表示一个显而易见的原因,因此应选用表原因的显而易见的原因,因此应选用表原因的now thatnow that。2.He found it increasingly difficult to read,_ his eyesight was beginning to fail.A.and B.for C.but D.or 解析:解析:“his eyesight w
11、as beginning his eyesight was beginning to fail”to fail”是是“he found it he found it increasingly difficult to read”increasingly difficult to read”的的原因,原因,因此本题应选用可以表示原因的因此本题应选用可以表示原因的连词连词forfor引导原因状语从句。引导原因状语从句。3.The book was written in easy English even primary school students could understand it.A.s
12、o;that B.such;that C.too;to D.very;that 解析解析 :根据题意从:根据题意从A A和和B B中选,因为中选,因为easy Englisheasy English是表示简单英语,属于是表示简单英语,属于名名suchsuch修饰名词,所以本题选修饰名词,所以本题选B B4.Zhou libo is shanghais favourite funny man.He is good at making people laugh.His lively shous werehot that tickets sold out in minnutes.A.very B.t
13、oo C.such D.so解析:从题意可知周立波是一个非常热解析:从题意可知周立波是一个非常热 情的人,句中情的人,句中hot属于形容词所以本题选属于形容词所以本题选D.5.-You study hard you are sure to pass the exam.-Thank you for saying so.A.enough;to B.as;as C.so;that 解析解析:根据翻译根据翻译 你学习这么刻苦肯定通你学习这么刻苦肯定通过考试。过考试。hardhard是形容词所以选是形容词所以选C C6.This meeting is important that you mustnt
14、miss it.A.Very B.such C.so D.too 解析;翻译是解析;翻译是 如此重要,句中如此重要,句中important属于形容词所以选属于形容词所以选C7.She was angry couldnt say a word.A.so;as B.so;that C.too;to D.very;that 解析解析:本题翻译是她很生气,都不能怎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样怎样。所以根据翻译本题应选B.sothat 中文翻译中文翻译 如此如此以至于,以至于,所以本题选所以本题选B8.-good time we had at the party last night.-Yes.It was exciting party that I would never forget it.A.What;so B.How;suchC.What a;such an D.How a;so an 解析解析:本题根据第二个空排除本题根据第二个空排除C.D因为因为exciting属于形容词,属于形容词,so可直接修饰可直接修饰形容词。形容词。exciting day 也可以用也可以用such a.第一个空根据第一个空根据good time 表示一段表示一段美好时光,所以本题选美好时光,所以本题选C