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1、初三英语专题复习之初三英语专题复习之初三英语专题复习之初三英语专题复习之初三英语专题复习之初三英语专题复习之 状语从句 何为状语从句？状语从句类型：时间、地点、原因、目的、结果、状语从句类型：时间、地点、原因、目的、结果、条件、方式、让步、比较状语从句九类。条件、方式、让步、比较状语从句九类。I love you.I love you very much.I love you till the end of the world.I fell in love with you when I saw you at first sight. 时间状语从句引导时间状语从句的连接词：引导时间状语从句的连
2、接词：when, as, while, after,before, since, as soon as, till, until等。等。eg: What are you going to do when you grow up? 遵循遵循主将从现主将从现/主情从现主情从现/主祈从现主祈从现原则原则when/while/as的区的区别别(1) when 可延可延续续，可非延，可非延 as/while 只跟延只跟延续续性性动词动词eg: It was snowing when we got to the airport. Please write while/as I read.(2) when
3、可先后，可同可先后，可同时时 as /while 只同只同时时eg: He went home when he had finished his homework. Some students were reading while others were writing.（2）before,after表示主句的动作发生在从句的动作之前或之后. eg: Please turn off the light before you leave the room. You can watch TV after you finish homework.（3）until/till 表示主句的谓语动词（延续性
4、动词）一直延续到 until/till 所表示的时间为止。 eg: You may stay here until/till the rain stops. He didnt go to bed until he had finished his work. Until he joined the army, he worked in that factory.until/till的用法区别：注意：1. 肯定句中，二者可以通用。 2. 否定句中，表示主句的谓语动词（非延续性动词）直到until所表示的时间才发生。构成句式 not.until 3. till 不用于句首，也不可用于强调句。 （4
5、）since 表示“自以来”，主句用现在完成时，从句用一般过去时。 eg: I have worked in this company since I graduated from college.注意：Its + 一段时间 + since + 从句 自从已经 eg: Its ten years since I left college.（5）as soon as表示“一就”。 eg: As soon as he arrives, Ill tell him. 主将从现原则地点状语从句由 where, wherever 引导。 eg: Where there is a will, there i
6、s a way. Wherever you go, I will go with you.原因状语从句常用连词 because, since，for和 as引导 because 回答why 提出的问题 since，as 表示既然，由于 for 表示附加理由或推断说明eg: I lent him my bike because he needed it.Lets begin our meeting since /as everybody is here.The days are longer for its spring now. 目的状语从句引导词或词组： so that, so, in or
7、der that, so as that等, 谓语含有may, might, can, could, will, would等情态动词。 eg: He must get up early so that he can catch the first bus.当从句与主句主语一致时，可用 so as to, in order to. eg: He worked day and night in order that he could succeed. =He worked day and night in order to succeed. 结果状语从句引导结果状语从句的词或词组有：so, so
8、 that, sothat, suchthateg: The question is so hard that I cant work it out. =The question is _ hard for me _work it out. =The question is _easy _ for me _work it out. tootonotenoughto条件状语从句引导词 :if，unless ，as long as（只要，如果，由于） 主祈从现、主将从现、主情从现主祈从现、主将从现、主情从现 除非你努力学习，否则你将不能通过考试。 eg: You will not pass the
9、 exam you study hard. =_you dont study hard, you wont pass the exam. =Study hard, _ you wont pass the eaxm. orIfIfunless方式状语从句由 as（按照），as if/as though（好像）等引导。 eg: I will do it as you tell me. She cried as if it was the end of the world. 引导词有：though/although, even thoughwhoever/no matter who, however
10、/no matter how,whatever/no matter what,wherever/no matter where, whenever/no matter when 和 as（虽然） eg: He didnt turn on the lights, though it was dark outside. 让步状语从句比较状语从句引导词为 asas, not as/soas , than, the morethe moreeg: Jim is as tall as me/I am. She doesnt speak English as/so well as Mary (does).
11、 =She speaks English _ than Mary (does). =Mary speaks English _ than her/she does. The _ (much) you practice English, the _ (well)you learn it.worsebettermorebetterExercises( )1.I have been collecting coins _ I was 11 years old. A. for B. since C. when D. after( )2.He worked _ hard _ he passed the e
12、xam. A. such, that B. so, that C. as, as D. too, to( )3.Is Jim at school today? -Yes, _ he has a bad cold. A. because B. so C. though D. as( )4.Over 400 million people have visited Disneyland parks around the world _ American Disneyland opened in July 1995. A. after B. before C. till D. sinceBBCD (
13、)5.James with the Greens _ the White Tower Park if it _tomorrow. A. are going to, isnt rainy B. are going to, doesnt rain C. is going to, wont rain D. is going to, isnt rainy ( )6.I wonder if it _ tomorrow. If it _ , Ill go hiking with Jim. A. will rain, wont rain B. rains, wont rain C. will rain, doesnt rain D. rains, doesnt rain ( )7. He got up early this morning _ he could catch the early bus. A. so B. in order that C. though D. in order toDCB
