原因、結(jié)果、目的狀語從句講解和練習(xí)(答案)

1、原因狀語從句(1) 原因狀語從句通常由 because, since, as,for 引導(dǎo)。(2) because 表示直接原因，語氣最強。 because 引導(dǎo)的原因狀語從句多放在主句之后?；卮鹩?why 提出的問 題，只能用 because 。此外， because 和 so 不能 同用在一個句子里。例如： Why aren' t going there? Because I don ' t want to.since 引導(dǎo)原因狀語從句，相當(dāng)于 now that ，意思是 “因為 ，既然 ， 鑒于 ”。 例如： Since the rain has stopped ， le

2、t 's go for a walk. 既然雨停了，我們出去散散步吧。 as 和 since 語氣較弱，一般用來表示明顯的原因。由 as 和 since 引導(dǎo)的原因狀語從居多放在句首。 例如 ： As he has no car, he can 't get there easily.Since we have no money, we can' t buy it.(4)for 表示所說的理由是一種補充說明 ,for 引導(dǎo)的從句一般不放在句子的開頭。如 :I decided to stop and have lunch, for I was feeling quite

3、hungry.小試牛刀：I was late for class yesterday there was something wrong with my bike.He took off his coat he felt hot.you can ' t answer the question, I' ll aesokn seo melse.結(jié)果狀語從句（1）結(jié)果狀語從句由 so that, such that, so that 引導(dǎo)。（2）so that 語 such.that 可以互換。在由 so.that 引導(dǎo)的結(jié)果狀語從句中， so 是副詞，與形容詞連用。其結(jié) 構(gòu)是 :

4、.“.so + 形容詞（副詞） + that + 從句 ”。例如： He was so glad that he couldn' t say a word.Mother lives so far away that we hardly ever（幾乎不，從來不） see her.在由 such that 引導(dǎo)的結(jié)果狀語從句中， such 是形容詞，它修飾的可以是單數(shù)或復(fù)數(shù)可數(shù)名詞，也可以是不 可數(shù)名詞；其結(jié)構(gòu)是 : .“.such +a / an + 形容詞 + 名詞 + that + 從句 ”。例如： It was such a hot day that nobody wanted

5、to do anything.He had such long arms that he could almost touch the ceiling.（天花板）有時上述兩種結(jié)構(gòu)是可以互換的。例如： It was such a wonderful film that all of us wanted to see it again.=The film was so wonderful that all of us wanted to see it again.（3）如果名詞前由 many, much, little, few 等詞修飾時，只能用 so, 不用 such 。 例如： Soon t

6、here were so many deer that they ate up all the wild roses.He has so little time that he can' t go to the cinema with you.（ 4）如果主從句的主語相同，并且從句是否定的形式，可以用too.to. 句型轉(zhuǎn)化。例如： He was so excited that he couldn't go to sleep that night. = He was too excited to go to sleep.（ 5）如果主從句的主語相同，但從句是肯定的形式，可以用a

7、dj.+ enough 替換。例如： He is so old that he could go to school. = He is old enough to go to school.他夠大了，可以去上學(xué)。小試牛刀： It ishot in the room _ we have to go out for a walk.It was a wonderful movie all of us wanted to see it again.There werelittle water in the bottle the bird couldn ' t reach it.He is so

8、 young that he couldn 't go to school.=.The classroom is so big that it can hold 100 person. =目的狀語從句 (1)目的狀語從句通常由 so that, in order that (為了，以便)引導(dǎo)。 例如： We started early so that we could catch the first train.We used the computer in order that we might save time.(2)so that 可引導(dǎo)目的狀語從句，此時可用to 或 in o

9、rder to 替換 ,將其改為簡單句。例如： He got up early so that he could get to school on time.=He got up early ( in order ) to get to school on time.(3) so that 既可引導(dǎo)目的狀語從句，又可引導(dǎo)結(jié)果狀語從句。區(qū)別這兩種從句的辦法有兩個：1)目的狀語從句里往往帶有情態(tài)動詞 can, could, may, might 等。 2)從意思上看，目的狀語從句往往表示的目的很明確。例如： Speak clearly so that they may understand you

10、. ( 目的狀語從句 )Jack is badly ill so that he has to rest.( 結(jié)果狀語從句 )小試牛刀： I hurriedI wouldn't be late for class.We should go by bus _ we can get there earlier. May I sit nearerI can see more clearly?一、單項選擇。1 We' ll stay at home if it tomorrow.A rainB rainsCis rainingD will rain2 We didn ' t g

11、o home we finished the work.A sinceB untilC becauseD though3 She when I went to see her.Ais readingBhave readCwas readingD reads4 the rain stops, we' ll set off for the station.A BeforeB Unless CAs soon asD Though5 She looks forward every spring to the flower-lined garden.A visitB paying a visit

12、C walk inD walking in6 Mr. White hoped he China the next year.A would visitB will visitC visitedDhas visited7 I told him that the sun in the east.A risesB roseC has risenD was rising8 She was tired she could not move an inch.Aso, thatB such, thatC very, thatDso, as9 He was sentenced to death what he

13、 had stolen from the bank.A that B sinceC because Dbecause of10I didn 't know what .Awas the matterBis the matterCthe matter wasDthe matter is11 I couldn ' t agree with at the meeting.Athat you saidBwhich you saidC what did you sayD what you said12 The bad man ran away to avoid and was final

14、ly put into prison.A seeing Bto be seenC being seen D to be caught13 Everyone except Jim and Jack .A know who is heB know who he isC knows who is heD knows who he is15It is ten years I left my hometown.AsinceBIfC whetherD until16 Could you tell us Mr. Brown lives in Room 202 ？A that B where C untilD

15、if17I learned a little Russian I was at middle school.A thoughB althoughC as ifD when18I don 't know or not it will rain tomorrow.A that B WhenC ifD whether19 Why is their classroom so clean and tidy？ it is cleaned every day.A SinceBAsC BecauseD For20 Can you tell me is going to give us a talk n

16、ext Monday ？Awho Bwhom C whose D what21. Please answer the question in a loud enough voice _ all the class may hear.A. so, that B. orC. in order thatD. and22. Lift it up_I may see it.A. thoughB. so thatC. as D. than23. I hurried_I wouldn't be late for class.A. soB. so thatC. if D. unless24. We s

17、hould go by bus _ we can get there earlier.A. as soon asB. whereC. in order that D. as25. The dictionary is so expensive _ I can't buy it.A. because B. when C. thatD. if26. I got there _ late _ I didn't see him.A. too; toB. such; thatC. so; thatD. so; as27. It is _ hot in the room _ we have

18、to go out for a walk.A. such; thatB. so; thatC. as; asD. such; as28. He has_ an interesting book that we want to read it.A. so B. such C. the same D. as29. Betty didn't go to see the film yesterday _ she was ill.A. because B. but C. untilD. if30. He took off his coat he felt hot.A. because B. as C. ifD. since31. The lady wasfat that she was not fit for this skirt.A. too B. as C. such D. so32. Our PE teacher walkswe can 't catch up with him.