状语从句中考复习.ppt
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1、状语从句,一个句子作另一个句子的状语时,这个句子就是另一个句子的状语从句。状语从句的分类主要有:1时间状语从句:时间状语从句常用when,while,before,after,since,till,until,as soon as等连词来引导。2原因状语从句:原因状语从句通常由because,since,as,for引导。3条件状语从句:条件状语从句通常由if,unless,as long as引导。4目的状语从句:目的状语从句通常由so that,in order that引导。5地点状语从句:地点状语从句常常由where来引导。,6结果状语从句:结果状语从句由sothat,suchthat
2、,so that引导。7比较状语从句:比较状语从句通常由asas,比较级+than等连词引导。8方式状语从句:方式状语从句通常由as ifas though等词引导。9让步状语从句:让步状语从句通常由although,though,even if,whoever/no matter who等连词引导。,考点一:选择引导词He began to run he would not be late for school.A.in order that B.in order to Cso as to Dbecause考点二:时间状语从句(1)时态:主将从现。即状语从句的时态受到主句动词时态的影响。在时
3、间状语从句、条件状语从句里,如果主句是一般将来时、祈使句时,从句通常不用将来时态,而用一般现在时态表示将来的动作或状态。例如:III tell him about it as soon as I see him.我一见到他就告诉他。III give it to him as soon as he arrives.他一到达我就给他。If he comes,please tell me.如果他来,请告诉我。,A,(2)since引导的时间状语从句为一般过去时,主句为现在完成时。例如:自从他两年前来这里,他已经交了好几个朋友了。He has made several friends since he
4、 came here two years ago.(3)when引导的时间状语从句,主句用过去进行时态,从句用一般过去时态。例如:当我进来时,他正在看电视。He was watching TV when I came in.While he was watching TV,I came in.He ran home as he sang a happy song.,考点三:条件状语从句 引导条件状语从句的从属连词是if(如果)。注意:如果主句是一般将来时,条件状语从句要用一般现在时态。例如:如果我们不早起,我们就赶不上火车。If we dont get up early,we wont cat
5、ch the train.如果明天下雨,我就不去海滩了。If it rains tomorrow,I wont go to the beach.你将在这次考试中不及格除非你努力学习.You will fail in this exam,unless you work hard.只要你努力学习,你就能及格.As long as you work hard,you can pass the exam.,四:让步状语从句常用though,although,even if,even though 引导尽管天气很冷,他没穿大衣就出去了.Though it was very cold,he went ou
6、t without his coat.即使他不来,我也不介意.I wont mind even if(though)he doesnt come.Though he is very young,but he can lift the heavy box.(错)Though we were tired,we still went on working.(对),结果状语从句常用 sothat suchthat so that 引导I didnt get up early,so that I didnt get a good seat.It was such bad weather that we
7、had to stay at home.It was such an interesting book that everyone liked to read it.He is such a kind teacher that they all like him.They are such good students that they always do well in the exams.,The weather is so cold that few people like to go out.He writes so carefully that he never makes a mi
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