1、1 原因状语从句(1)原因状语从句通常由 because, since, 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 arent going there?-Because I dont want to.since 引导原因状语从句，相当于 now that，意思是“因为，既然， 鉴于”。 例如：Since the rain has stopped，lets go for a walk. 既然雨停了，我们
2、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。例如 ：As he has no car, he cant get there easily.Since we have no money, we cant buy it.(4)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 :I decided to stop and have lunch, for I was feeling quite hungry.小试牛刀： I was late for class yesterday _ t
3、here was something wrong with my bike.He took off his coat _ he felt hot.you cant answer the question, Ill ask someone else. 结果状语从句(1)结果状语从句由 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 could
4、nt say a word.Mother 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 nobody wanted to do anything.He had such long arms that he could almost touch the ceiling.
5、（天花板） 有时上述两种结构是可以互换的。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 tim
6、e that he cant go to the cinema with you.（4）如果主从句的主语相同，并且从句是否定的形式，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 enough to go to schoo
7、l.他够大了，可以去上学。小试牛刀：It is _ hot in the room _ we have to go out for a walk.It was a wonderful movie all of us wanted to see it again.2There were little water in the bottle the bird couldnt reach it.He is so young that he couldnt go to school.= .The classroom is so big that it can hold 100 person. = .
8、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 ord
9、er） 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 you. (目的状语从句)Jack is badly ill so that he has to rest. (结果状语从句)小试牛刀： I hurried I wouldnt be late for class. We
10、should go by bus _ we can get there earlier. May I sit nearer I can see more clearly?一、单项选择。1Well stay at home if it _ tomorrow. Arain Brains Cis raining Dwill rain 2We didnt go home _ we finished the work.Asince Buntil Cbecause Dthough3She _ when I went to see her.Ais reading Bhave read Cwas readin
11、g 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 Dwalking in6Mr. White hoped he _ China the next year. Awould visit Bwill visit Cvisited Dhas visited 7I told him th
12、at 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 had stolen from the bank.Athat Bsince Cbecause Dbecause of10I didnt know what _.Awas the matter Bis the matter Cth
13、e matter was Dthe matter is 11I couldnt agree with _ at the meeting.3Athat you said Bwhich you said Cwhat did you say Dwhat you said 12The bad man ran away to avoid _ and was finally put into prison.Aseeing Bto be seen Cbeing seen Dto be caught13Everyone except Jim and Jack _.Aknow who is he B know
14、who he is Cknows who is he Dknows 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 Dif 17I learned a little Russian _ I was at middle school.Athough Balthough Cas if Dwhen18I dont know _ or not it will
15、rain tomorrow.Athat BWhen Cif Dwhether 19Why is their classroom so clean and tidy？ _ it is cleaned every day.ASince BAs CBecause DFor 20Can you tell me _ is going to give us a talk next Monday？Awho Bwhom Cwhose Dwhat21. Please answer the question in a loud enough voice _ all the class may hear.A. so
16、, 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 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 expe
17、nsive _ 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 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
18、 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. 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 wa
19、lks 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 4答案：1-5 BBCCD 6-10 AAADA 11-15 DCDBA 16-20 DDDCA21-25 C B B C C 25-30 C B B A A 31- D C B
