原因狀語從句

1、一一.原因狀語從句原因狀語從句二二. .結(jié)果狀語從句結(jié)果狀語從句三三. .練習題練習題姚霞飛姚霞飛孟丹丹孟丹丹張志艷張志艷1.1.定義：說明主句原因的句子叫原定義：說明主句原因的句子叫原因狀語從句因狀語從句 2.2.時態(tài)：原因狀語從句一般都是根時態(tài)：原因狀語從句一般都是根據(jù)實際情況選用適當?shù)臅r態(tài)。通常據(jù)實際情況選用適當?shù)臅r態(tài)。通常是主過從過，主現(xiàn)從現(xiàn)。是主過從過，主現(xiàn)從現(xiàn)。3.3.常用引導詞常用引導詞: because (: because (因為因為), ), since (since (既然既然), now that(), now that(既然既然), ), as (as (由于由于),

2、 for(), for(因為）因為）4.because，since和和as的區(qū)別：的區(qū)別：1 1）because“因為因為”，表示直接的原，表示直接的原因，語氣最強。因，語氣最強。why提問的句子，必須用提問的句子，必須用because回回答。答。eg:I stayed at home because it rained.2) since2) since引導的原因狀語從句一般放于引導的原因狀語從句一般放于主句之前表示已知的、顯然的理由主句之前表示已知的、顯然的理由( (通通常被翻譯成常被翻譯成“既然既然”= now that= now that），），較為正式，語氣比較為正式，語氣比becau

3、sebecause弱。弱。eg: Since you 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引導原因狀語從句時表示附帶說明引導原因狀語從句時表示附帶說明的的“雙方已知的原因雙方已知的原因”，含有對比說，含有對比說明的意味，語氣比明的意味，語氣比sincesince弱，較為正式，弱，較為正式，位置較為靈活位置較為靈活( (常放于主句之前常放于主句之前) ) eg：As it is raining,

4、youd better take a taxi.4)for4)for引導的是并列句，表示原因，引導的是并列句，表示原因，但并不說明主句行為發(fā)生的直接原但并不說明主句行為發(fā)生的直接原因，只提供一些輔助性的補充說明，因，只提供一些輔助性的補充說明，forfor引導的并列句只能放于主句之引導的并列句只能放于主句之后并且必須用逗號將其與主句隔開。后并且必須用逗號將其與主句隔開。返回返回eg：He seldom goes out now, for he is very old1.1.定義：在句中用來作結(jié)果狀語的定義：在句中用來作結(jié)果狀語的句子叫結(jié)果狀語從句。句子叫結(jié)果狀語從句。2.2.常用引導詞常用引導

5、詞: so that (: so that (如如此此以致以致), such that (), such that (如如此此以致以致) ) 3.3.時態(tài)：結(jié)果狀語從句一般都是根時態(tài)：結(jié)果狀語從句一般都是根據(jù)實際情況選用適當?shù)臅r態(tài)。也通據(jù)實際情況選用適當?shù)臅r態(tài)。也通常是主過從過，主現(xiàn)從現(xiàn)。常是主過從過，主現(xiàn)從現(xiàn)。4.4.結(jié)果狀語從句的句型：結(jié)果狀語從句的句型： 結(jié)果狀語從句的從句部分是補充說明主結(jié)果狀語從句的從句部分是補充說明主句中謂語動詞發(fā)生的結(jié)果的，通常位于句中謂語動詞發(fā)生的結(jié)果的，通常位于主句之后。結(jié)果從句中通常不用情態(tài)助主句之后。結(jié)果從句中通常不用情態(tài)助動詞，但動詞，但must, ca

6、n, couldmust, can, could除外。結(jié)果除外。結(jié)果狀語從句其規(guī)律由狀語從句其規(guī)律由soso與與suchsuch的不同詞性的不同詞性決定。決定。suchsuch是形容詞，修飾名詞或名詞是形容詞，修飾名詞或名詞詞組，詞組，soso是副詞，只能修飾形容詞或副是副詞，只能修飾形容詞或副詞。詞。soso還可與表示數(shù)量的形容詞還可與表示數(shù)量的形容詞many,few,much,littlemany,few,much,little連用，形成固定連用，形成固定搭配搭配 。1) so + + 形形/ /副副+ + that 從句從句 eg:The boy is so young that he

7、cant go to school.2) so + many/few（+復名復名）+ that從句從句eg: There are so many picture-story books that the boy wont leave.3) so + much/ little（+ 不可數(shù)名詞不可數(shù)名詞）+that從句從句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+ 單名單名+ that從句從句eg：It was so hot a day

8、that they wanted to go swimming.5) such+ a/an+ 形形+單名單名+ that從句從句= so+ 形形+ a/an+單名單名+ that從句從句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+復名復名/不可數(shù)名詞不可數(shù)名詞+that從從句句 eg：They are such fine teachers that we all hold them in great respect 返

9、回5 5、結(jié)果狀語從句與簡單句的轉(zhuǎn)換：、結(jié)果狀語從句與簡單句的轉(zhuǎn)換：1) so that (從句為肯定句從句為肯定句) = 形形/副副 + enough + (for sb.) to do stheg：He is so old that he can go to school alone.= He is old enough to go to school alone.2) so that (從句為否定句從句為否定句) = too + 形形/副副 + (for sb.) to do sth. eg：The problem is so hard that I cant work it out.

10、= 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. Now that B. After C. Although D. As soon as 解析：主句與從句之間存在因果關系，解析：主句與從句之間存在因果關系，且且“youve got a chance”youve got a chance”表示一個表示一個顯而易見的原因，因此應選用表原因的顯而易見的原因，因此應選用表原因的now thatnow that。 2.He fou

11、nd 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 was 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， 因此本題應選用可以表示原因的因此本題應選用可

12、以表示原因的連詞連詞forfor引導原因狀語從句。引導原因狀語從句。3.The book was written in easy English even primary school students could understand it. A.so;that B.such;that C.too;to D.very;that 解析解析 ：根據(jù)題意從：根據(jù)題意從A A和和B B中選，因為中選，因為easy Englisheasy English是表示簡單英語，屬于是表示簡單英語，屬于名名suchsuch修飾名詞，所以本題選修飾名詞，所以本題選B B4.Zhou libo is shangha

13、is favourite funny man.He is good at making people laugh. His lively shous werehot that tickets sold out in minnutes. A.very B.too C.such D.so解析：從題意可知周立波是一個非常熱解析：從題意可知周立波是一個非常熱 情的人，句中情的人，句中hot屬于形容詞所以本題選屬于形容詞所以本題選D. 5.-You study hard you are sure to pass the exam. -Thank you for saying so. A.enough ;

14、to B.as;as C.so;that 解析解析: :根據(jù)翻譯根據(jù)翻譯 你學習這么刻苦肯定通你學習這么刻苦肯定通過考試。過考試。hardhard是形容詞所以選是形容詞所以選C C6.This meeting is important that you mustnt miss it. A.Very B.such C.so D.too 解析；翻譯是解析；翻譯是 如此重要，句中如此重要，句中important屬于形容詞所以選屬于形容詞所以選C7.She was angry couldnt say a word . A.so;as B.so;that C.too;to D.very;that 解析解析:本題翻譯是她很生氣，都不能怎本題翻譯是她很生氣，都不能怎樣怎樣。所以根據(jù)翻譯本題應選樣怎樣。所以根據(jù)翻譯本題應選B.sothat 中文翻譯中文翻譯 如此如此以至于，以至于，所以本題選所以本題選B8.- good time we had at the party last night.-Yes.It was exciting party th