原因、结果、目的状语从句讲解和练习和答案

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1、状语从句总结一、因素状语从句(1)因素状语从句一般由because, since, as, for引导。(2)because表达直接因素，语调最强。because引导的因素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不能同用在一种句子里。例如：-Why arent going there?-Because I dont want to.since引导因素状语从句，相称于now that，意思是“由于，既然， 鉴于”。 例如：Since the rain has stopped，lets go for a walk. 既然雨停了，我们出去散散步

2、吧。 as和since语调较弱，一般用来表达明显的因素。由as和since引导的因素状语从居多放在句首。例如 ：As he has no car, he cant get there easily. Since we have no money, we cant buy it.(3)for表达所说的理由是一种补充阐明,for引导的从句一般不放在句子的开头。如:I decided to stop and have lunch, for I was feeling quite hungry.练习：I was late for class yesterday _ there was somethin

3、g wrong with my bike.He took off his coat _ he felt hot. you cant answer the question, Ill ask someone else.二、成果状语从句(1)成果状语从句由sothat, suchthat, so that引导。(2)sothat语such.that可以互换。在由so.that引导的成果状语从句中，so是副词，与形容词连用。其构造是: “.so + 形容词（副词）+ that + 从句”。例如：He was so glad that he couldnt say a word. Mother liv

4、es so far away that we hardly ever（几乎不，历来不） see her.在由suchthat引导的成果状语从句中，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；其构造是: “.such +a / an + 形容词+名词+ that + 从句”。例如：It was such a hot day that nobody wanted to do anything.He had such long arms that he could almost touch the ceiling.（天花板） 有时上述两种构造是可以互换的。例如：It wa

5、s 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)如果名词前由many, much, little, few等词修饰时，只能用so, 不用such。例如：Soon there were so many deer that they ate up all the wild roses.He has so little time that he cant go to the cinema w

6、ith you.(4)如果主从句的主语相似，并且从句与否认的形式，可以用too.to.句型转化。例如：He was so excited that he couldnt go to sleep that night. = He was too excited to go to sleep.(5)如果主从句的主语相似，但从句是肯定的形式，可以用adj.+ enough替代。例如：He is so old that he could go to school. = He is old enough to go to school.她够大了，可以去上学。练习：It is _ hot in the r

7、oom _ we have to go out for a walk.It was a wonderful movie all of us wanted to see it again. There were little water in the bottle the bird couldnt reach it. . 三、目的状语从句(1)目的状语从句一般由 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 or

8、der that we might save time.(2)so that可引导目的状语从句，此时可用to或in order to替代,将其改为简朴句。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，又可引导成果状语从句。区别这两种从句的措施有两个：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达的目的很明确。

9、例如： Speak clearly so that they may understand you. (目的状语从句) Jack is badly ill so that he has to rest. (成果状语从句)练习： I hurried I wouldnt be late for class. We should go by bus _ we can get there earlier. May I sit nearer I can see more clearly? (4) 补充：so as to(肯定构造) eg. He got up early so as to catch t

10、he early train. so as not to(否认构造) eg. He got up early so as not to miss the early train.to eg. He got up early to catch the early train. in order that eg. 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. Translateso tha

11、t 以便；为了她阅读更多书，以便她能懂得更多知识。 我们努力学习是为了我们能有一种好的将来 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。 你目前一定要走是为了不迟到。 小男孩节省每一种硬币是为了她能在妈妈节给她妈妈买一份礼物。她在网上购买了一部手机以便她能打电话。 说得清晰些,使得她们能听懂你的意思. 拿近某些,好让我看得更清晰些。 我们目前就准备好，等爸爸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。 她太美丽了以致诸多人喜欢她。 咖啡太热了以致于我目前不能喝。 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

12、能追上她。 她太饿了以致她不能说一种字。 男人太强健了以致她可以抬起这个重箱子。 箱子太轻了以致她能背起它。 她病得很厉害,今天无法上学。 这个小孩此前常常撒谎，以至于目前没有人相信她。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。 Translate answersso that 以便；为了她阅读更多书，以便她能懂得更多知识。 He reads more books so that he can lean more knowledge.我们努力学习是为了我们能有一种好的将来 We study hard so that we can have a good future.我起

13、得早是为了能赶上早一点的班车。 I got up early so that I could catch the early bus.请打开窗户以便我们能呼吸新鲜空气。 Please open the window so that we can breathe fresh air.你目前一定要走是为了不迟到。 You must go now so that you wont be late.小男孩节省每一种硬币是为了她能在妈妈节给她妈妈买一份礼物。The little boy saved every coin so that he could buy his mother a present

14、on Mothers day.她在网上购买了一部手机以便她能打电话。 Ill give you all the facts so that you can judge for your self说得清晰些,使得她们能听懂你的意思. Speak clearly, so that they may understand you拿近某些,好让我看得更清晰些。 Bring it nearer so that I may see it better我们目前就准备好，等爸爸一来我们就可以走了。 Lets get ready now so that we can leave when Father come

15、sso.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 as soon as I had supper.她太美丽了以致诸多人喜欢她。 She is so beautiful that many people like her.咖啡太热了以致于我目前不能喝。 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她。 Th

16、e boy ran so fast that I couldnt catch him.她太饿了以致她不能说一种字。 He was so angry that he couldnt say a word.男人太强健了以致她可以抬起这个重箱子。 The man is so strong that he can lift the heavy box.箱子太轻了以致她能背起它。 The box is so light that he can carry it.她病得很厉害,今天无法上学。 He was so ill that he couldnt go to school today这个小孩此前常常撒

17、谎，以至于目前没有人相信她。 The child often told lies so that no one believes him now. 她很伤心以至于她伤心地哭了。 She is so angry that she cried sadly.那门太小了，以至于这只熊走不进去。 The door is so small that the bear cant go inside.强化练习一、单选。1Well stay at home if it _ tomorrow. Arain Brains Cis rainingDwill rain 2We didnt go home _ we fi

18、nished the work. Asince Buntil Cbecause Dthough3She _ when I went to see her. Ais reading Bhave read Cwas reading Dreads 4_ the rain stops, well set off for the station. ABefore BUnless CAs soon as DThough5She looks forward every spring to _ the flower-lined garden. Avisit Bpaying a visit Cwalk in D

19、walking in6Mr. White hoped he _ China the next year. Awould visit Bwill visit Cvisited Dhas visited 7I told him that the sun _ in the east. Arises Brose Chas risen Dwas rising 8She was _ tired _ she could not move an inch. Aso, that Bsuch, that Cvery, that Dso, as9He was sentenced to death _ what he

20、 had stolen from the bank. Athat Bsince Cbecause Dbecause of10I didnt know what _. Awas the matter Bis the matter Cthe matter was Dthe matter is 11I couldnt agree with _ at the meeting. Athat you said Bwhich you said Cwhat did you say Dwhat you said 12The bad man ran away to avoid _ and was finally

21、put into prison. Aseeing Bto be seen Cbeing seen Dto be caught13Everyone except Jim and Jack _. Aknow who is he Bknow who he is Cknows who is heDknows who he is 15It is ten years _ I left my hometown. Asince BIf Cwhether Duntil 16Could you tell us _ Mr. Brown lives in Room 202？ Athat Bwhere Cuntil D

22、if 17I learned a little Russian _ I was at middle school. Athough Balthough Cas if Dwhen18I dont know _ or not it will rain tomorrow. Athat BWhen Cif Dwhether 19Why is their classroom so clean and tidy？ _ it is cleaned every day. ASince BAs CBecauseDFor 20Can you tell me _ is going to give us a talk

23、 next Monday？ AwhoBwhom Cwhose Dwhat21. Please answer the question in a loud enough voice _ all the class may hear.A. so, that B. or C. in order that D. and22. Lift it up_I may see it. A. though B. so that C. as D. than23. I hurried_I wouldnt be late for class. A. so B. so that C. if D. unless24. We

24、 should go by bus _ we can get there earlier. A. as soon as B. where C. in order that D. as25. The dictionary is so expensive _ I cant buy it. A. because B. when C. that D. if26. I got there _ late _ I didnt see him. A. too; to B. such; that C. so; that D. so; as27. It is _ hot in the room _ we have

25、 to go out for a walk. A. such; that B. so; that C. as; as D. such; as28. He has_ an interesting book that we want to read it. A. so B. such C. the same D. as29.Betty didnt go to see the film yesterday _ she was ill.A. because B. but C. until D. if30. He took off his coat _ he felt hot. A. because B

26、. as C. if D. since31. The lady was fat that she was not fit for this skirt. A. too B. as C. such D. so32. Our PE teacher walks we cant catch up with him.A. so quick that B. too quickly that C. so quickly that D. too quickly that33. Mrs. Green is that she often gives candies to the children. A. so a nice lady B. such a nice lady C. a so nice lady D. too nice a lady 答案：1-5 BBCCD 6-10 AAADA 11-15 DCDBA 16-20 DDDCA 21-25 C B B C C 25-30 C B B A A 31- D C B