原因、结果、目的状语从句讲解和练习和答案

1、状语从句总结、原因状语从句(1)原因状语从句通常由because, si nee, as, for 引导。(2)because表示直接原因，语气最强。because引导的原因状语从句多放在主句之后。回答由 why提出的问题，只能用because。此外，because和so不能同用在一个句子里。例如： Why aren t going there? Because I don t want to.since弓I导原因状语从句，相当于 now that，意思是因为，既然, 鉴于”。例如：Si nee the rain has stopped, let s go for a walk.既然雨停了，我

2、们出去散散步吧。as和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。例女口 : As he has no car, he can t get there easily.Since we have no money, we can t buy it.(3)for表示所说的理由是一种补充说明，for引导的从句一般不放在句子的开头。如练习：I decided to stop and have lun ch, for I was feeli ng quite hun gry.I was late for class yesterdaythere was s

3、ometh ing wrong with my bike.He took off his coathe felt hot. you can t answer the question, III asksome one else.二、结果状语从句(1)结果状语从句由 sothat, such that, so that 引导。（2）sothat语such.that可以互换。在由so.that引导的结果状语从句中，so是副词，与形容词连用。其结构是：“.so + 形容词（副词） + that +从句”。例如： He was so glad that he couldn t say a word.M

4、other lives so far away that we hardly ever（几乎不，从来不）see her.在由suchthat引导的结果状语从句中，such是形容词，它修饰的可以是单数或复数可数名词，也可以是不可数名词；其结构是：“.such +a / an + 形容词+名词+ that +从句”。例如： It was such a hot day that n obody wan ted to do anything.He had such long arms that he could almost touch the ceili ng.（天花板）有时上述两种结构是可以互换的

5、。例如：It was such a won derful film that all of us wan ted to see it aga in.=The film was so won derful that all of us wan ted to see it aga in.例如： Soon there 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.如果主从句的主语相同，并且从句是否定的形式，可以用to

6、o.to句型转化。例如： He was so excited that he could nt go to sleep that night. = He was too excited to go to sleep.(5)如果主从句的主语相同，但从句是肯定的形式，可以用adj.+ enough 替换。例如：He is so old that he could go to school. = He is old eno ugh to go to school.他够大了，可以去上学。练习：It ishot in the roomwehave to go out for a walk.It wasa

7、 won derful movieall of us wan ted to see it aga in.Therewerelittlewater in the bottlethe bird couldn t reachit.三、目的状语从句（1）目的状语从句通常由so that, in order that（为了，以便）引导。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可引导目的状语从句，此时

8、可用 to或in order to替换，将其改为简单句。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既可引导目的状语从句，又可引导结果状语从句。区别这两种从句的办法有两个：1）目的状语从句里往往带有情态动词can, could, may, might等。2）从意思上看，目的状语从句往往表示的目的很明确。例如： Speak clearly so that they may understand y

9、ou.（目的状语从句）Jack is badly ill so that he has to rest. （结果状语从句）练习：I hurried I wouldnt be late for class.We should go by buswe can get there earlier.May I sit n earerI can see more clearly?（4）补充：f so as to （肯定结构 ）eg. He got up early so as to catch the early train.so as not to （否定结构 ） eg. He got up earl

10、y so as not to miss the early train.s下载可编辑.toeg. He got up early to catch the early train.in order thateg. He got up early in order that he could catch the early train.in order to eg. He got up early in order to catch the early train.Tran slateso that 以便；为了他阅读更多书，以便他能知道更多知识。我们努力学习是为了我们能有一个好的未来我起得早是为

11、了能赶上早一点的班车。请打开窗户以便我们能呼吸新鲜空气。你现在一定要走是为了不迟到。小男孩节省每一个硬币是为了他能在母亲节给他妈妈买一份礼物。她在网上购买了一部手机以便她能打电话。说得清楚些，使得他们能听懂你的意思拿近一些，好让我看得更清楚些。我们现在就准备好，等父亲一来我们就可以走了。so.that. 如此（太）以致我太累了，以致我一吃完晚饭就去睡觉了。她太漂亮了以致很多人喜欢她。咖啡太热了以致于我现在不能喝。她如此年轻以致她不能照顾好她自己。男孩跑得太快了以致我不能追上他。他太饿了以致他不能说一个字。男人太强壮了以致他可以抬起这个重箱子。箱子太轻了以致他能背起它。他病得很厉害，今天无法上学

12、。这个小孩以前经常撒谎，以至于现在没有人相信他。她很伤心以至于她伤心地哭了。那门太小了，以至于这只熊走不进去。Tran slate an swersso that 以便；为了他阅读更多书，以便他能知道更多知识。我们努力学习是为了我们能有一个好的未来我起得早是为了能赶上早一点的班车。请打开窗户以便我们能呼吸新鲜空气。He reads more books so that he can lean more knowledge.We study hard so that we can have a good future.I got up early so that I could catch th

13、e early bus.Pleaseopen the window so that we can breathe fresh air.你现在一定要走是为了不迟至叽You must go now so that you wont be late.小男孩节省每一个硬币是为了他能在母亲节给他妈妈买一份礼物。The little boy saved every coin so that he could buy his mother a present on Mothers day.她在网上购买了一部手机以便她能打电话。I ll give you all the facts so that you c

14、an judge for your self .说得清楚些，使得他们能听懂你的意思. Speak clearly, so that they may un dersta nd you.拿近一些，好让我看得更清楚些。Bring it nearer so that I may see it better.我们现在就准备好，等父亲一来我们就可以走了。Lets get ready now so that we can leave when Fathercomes.so.that. 如此（太）以致我太累了，以致我一吃完晚饭就去睡觉了。I was so tired that I went to bed a

15、s soon as I hadsupper.她太漂亮了以致很多人喜欢她。She is so beautiful that many people like her.咖啡太热了以致于我现在不能喝。He coffee is so hot that I cant drink now.她如此年轻以致她不能照顾好她自己。She is so young that she cant look after herself.男孩跑得太快了以致我不能追上他。The boy ran so fast that I could nt catch him.他太饿了以致他不能说一个字。He was so angry tha

16、t he could nt say a word.男人太强壮了以致他可以抬起这个重箱子。The man is so stro ng that he can lift the heavy box.箱子太轻了以致他能背起它。The box is so light that he can carry it.这个小孩以前经常撒谎，以至于现在没有人相信他。The child often told lies so that no one believeshim now.她很伤心以至于她伤心地哭了。She is so an gry that she cried sadly.那门太小了，以至于这只熊走不进去。

17、The door is so small that the bear can t go in side.强化练习、单项选择。1. we ll stay at home if ittomorrow.A. rainB. rainsC. is rainingD . will rain2. We didn t go homewe finished the work.A. sinceB. untilC. becauseD. though3. Shewhen I went to see her.A. is readingB. have readC. was readingD . reads4. the r

18、ain stops, we ll set off for the station.A . BeforeB. Un lessC. As soon asD. Though5. She looks forward every spring tothe flower-lined garden.A . visitB. paying a visitC. walk inD. walking in6. Mr. White hoped heChina the next year.D . hasA . would visitB. will visitC. visited visitedin the east.7.

19、 I told him that the sunA . risesB . roseC. has rise nD . wasrisi ng8 . She wastiredshe could not move an in ch.D. so,A . so, thatB . such, thatC. very, thatas9 . He was sentenced to deathwhat he had stole n from the bank.A . thatB . sinceC . becauseD. because of10 . I didn t know whatA . was the ma

20、tterB . is the matterC. the matter wasD . thematter is.下载可编辑12. The bad man ran away to avoidand was fin ally put into pris on.A. seeingB. to be seenC.being see nD.to becaught13. Everyone except Jim and Jack.A. know who is heB. know who he isC. knows who is heD. knows who he is15. It is ten yearsI l

21、eft my hometow n.A. si neeB. IfC.whetherD.un til16. Could you tell usMr. Brow n lives in Room 202?A. thatB. whereC.un tilD.if17. I learned a little Russian1 was at middle school.A. thoughB. althoughC. as ifD. when18. I don t knowor not it will rain tomorrow.A . thatB. WhenC. ifD. whetherA. that you

22、saidyou saidB. which you saidC. what did you sayD. what19. Why is their classroom so clea n and tidy?it is clea ned every day.A . SinceB. AsC. BecauseD. For20. Can you tell meis going to give us a talk n ext Mon day?A. whoB. whomC. whoseD. what21. Please an swer the questi on in a loud eno ugh voice

23、A. so, thatB. or22. Lift it upI may see it.A. thoughB. so that23. I hurriedI would nt be late for class.A.soB. so thatuni ess24. We should go by buswe can get there earlier.A. as soon asB. where25. The dicti onary is so expe nsiveI cant buy it.A. becauseB. when26. I got therelateI did nt see him.A. too; toB. such; thatC. in order thatD. andC. asD. thanC. ifD.C. in order thatD. asC. thatD. ifC. so; thatD.all the