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1、状语从句状语从句状语从句的几种类型：引导时间状语从句的连接词：when, as, while, after, before, till, until, since, as soon as等；引导原因状语从句的连接词：because, since, as等；引导目的状语从句的连接词：so that, in order that等；引导结果状语从句的连接词：sothat, suchthat 等；引导条件状语从句的连接词：if, unless, as long as等；引导让步状语从句的连接词：although, though, even though等；引导比较状语从句的连接词：as as 等。（
2、一）时间状语从句表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, as soon as (或the moment ), by the time, every time等引导。1._(当老师进入教室的时候), the students were reading.2.他一收到礼物就打开了。_3. He didnt go out _(直到他做完作业)4.We have never met him _(自从他离开这里).5.Ill be back _(在你离开之前).（二）原因状语从句原因状语从句是表示原
3、因或理由的，引导这类从句的最常用的连词是because, since, as , for 等。1. He is sad _(因为他考试不及格).2._(因为在下雨), I will not go out.3._(既然你是学生), you should study hard.（三）目的状语从句引导目的状语从句最常用的词（组）是so, so that, in order that等。She gets up early every day_(为了能准时到学校).= _.He left early_(为了赶上火车).（四）结果状语从句结果状语从句是表示事态结果的从句，通常主句是原因，从句是结果。由so
4、 that, such that等引导。 1.She was ill, so that she didnt attend the meeting.2.他激动得说不出话。_.3.天气这么糟糕，我不想出去。_.（五）条件状语从句条件状语从句分真实性与非真实性条件句。引导条件状语从句的词（组）主要有if, unless, as long as等。注意：条件从句中的if 不能用whether替换。1.You may borrow the book _(只要你保持干净).2.如果你不努力学习，你就会考试不及格。 _= _= _ = _If he had come a few minutes earlie
5、r, he could have seen her.（六）让步状语从句让步状语从句可由although, though, even if (though), whatever, no matter who (when, what, ) 等引导。1._(尽管他是个孩子), he knows a lot.2._(无论你说什么), Ill never change my mind.（七）比较状语从句比较状语从句常用than, so (as) as, the more the more等引导。1.I have made a lot more mistakes than you have.2.He sm
6、okes cigarettes as expensive as he can afford.3.The busier he is, the happier he feels.（八）地点状语从句引导地点状语从句的连词是where 和wherever等。1. Sit wherever you like.2.Make a mark where you have a question.使用状语从句时要注意的几个问题1、在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句通常用一般现在时表示将来。e.g. Well go out if it doesnt rain tomorrow. Il
7、l write to you as soon as I get to Shanghai.2、注意区分不同从句：引导的是什么从句，不仅要根据连词，还要根据句子结构和句意来判别。以where为例，能引导多种从句。e.g. You can find it where you left it.（_从句） Tell me the address where he lives.（_从句） I dont know where he came from.（_从句） Where he has gone is not known yet.（_从句） This place is where they once li
8、ved. （_从句）练习、状语从句一、用适当的连词填空：1. Dr. Bethune (白求恩) came to China _ he was fifty.2. He began to work _ he got there.3. I like the English people, _ I dont like their food.4. _ you go in China, you can see smiling faces.5. He didnt come to the meeting, _ he was very busy.6. They will help you _ you meet
9、 with difficulty.7. _ we came to the university, we have learnt quite a lot.8.I didnt join them yesterday evening _ I had to go to an important meeting.9. We would try to get a car _we could all travel together more easily.10. She wouldnt forget her mothers birthday _ she seldom wrote to her family.
10、11. Were doing everything we can to make things as easy for you _we can.12. The meeting was so disorderly _ the speaker had to shout the audience down.13. _ you lock all the doors, he can still manage to get in.14. The boy was so tired _ he fell asleep on the bus.15. _ he tried hard, he couldnt forc
11、e the door open.二、单选：1. Ill let you know _ he comes back.A. before B. because C. as soon as D. although2. She will sing a song _ she is asked.A. if B. unless C. for D. since3. We will work _ we are needed.A. whatever B. because C. since D. wherever4. Read it aloud _ the class can hear you.A. so that
12、 B. if C. when D. although5._ you go, dont forget your friends.A. Whatever B. However C. Wherever D. Whichever6. It is about ten years _ I met you last.A. since B. for C. when D. as 7. They will never succeed, _ hard they try.A. because B. however C. when D. since8. _ it was raining hard, he made his way home.A. What B. Because C. Though D.
