广东省龙江中学2015年中考英语复习学案+同步练习:状语从句
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状语从句
考试标准: 1. 能正确使用引导状语从句的连接词。
2. 掌握时间和条件状语从句中,一般现在时表示将来的用法。
(一)时间状语从句:由when, while, before, after, since, as soon as, till / until 引导的从句
1)when 与while
⎩
⎨⎧++“长命”动词“短命”动词while when eg.1)I’ll tell her the good news _____he comes back.
2)Aunt Wang came in while we were watching TV
⎩
⎨⎧⋯⋯+⋯⋯+为止到“长命”动词的肯定式才直到“短命”动词的否定式::)2until until 3)since:自从……以来(since 从句常用一般过去时)
注意主句通常用现在完成时,但当主句表示一种状态,用一般现在时
eg.1)He has lived there since he came to China
2)It is two years since her mother died.
(二)条件状语从句:由if (如果)引导的从句
eg.I will go to the park if it ________ (not rain) tomorrow.
注意:条件状语从句与以下句型的转换
1)祈使句,and (then , or)+简单句
= If you … , you …
eg.1)Use your head, then you’ll find a way.
=If you use your head, you’ll find a way
2)Hurry up, or you’ll be late.
=If you don’t hurry, you’ll be late.
2)without 与条件句的转化
eg. Man can’t live without water.
=Man can’t live if there is no water.
但since从句例外,应与现在完成时连用。
eg.1)I’ll call you as soon as he ______ (come) back.
2)He won’t go to bed un til he _________ (finish) his homework.
3)I’ll help you if I _____ (be) free tomorrow
4)I ___________ (live) here since I came to China.
(三)原因状语从句:由because, since , for , as引导的从句
eg. He didn’t go to school because he was ill.
注意:1)对because引导的从句提问用why
2)因为(because), 所以(so)不能连用
eg. Because he was (A) ill, so (B) he didn’t (C) go to school (D) yesterday. ________ (四)结果状语从句:由so… that引导的从句(so后接形、副原级)
eg. He ran (A) so faster(B) that I couldn’t catch up with (C) him. ________
注意:1) “so… that +否定句”与“too… to”的替换
eg.1)He is so young that he can’t go to school.
= He is too young to go to school(主、从句主语相同)
2)He ran so fast that we couldn’t catch up with him.
= He ran too fast for us to catch up with. (主、从句主语不同)
3)The box is so heavy that I can’t carry it
= The box is too heavy for me to carry.(注意carry后省去宾语it)
2)“so… that +从句”与“enough to”的替换
eg.1)He’s so strong that he can carry the box.
= He’s strong enough to carry the box.
2)The question is so easy that I can answer it
=The question is easy enough for me to answer
练习
( )1.We bought granny a present, ___ she didn’t like it.
A. but
B. and
C. when
( )2.Be quick, ___ you’ll be late for the football match.
A. so
B. and
C. or
( )3.Y ou’ve done badly, ___ I can see you did your best. A. or B. but C. so ( )4.That was our first lesson, ___ she didn’t know all our names.
A. for
B. but
C. so
( )5.They didn’t pass the ball often enough, ___ they didn’t play together very well.
A. and
B. yet
C. when
( )6.It was raining at that time, ___ they couldn’t go out for walk.
A. because
B. or
C. so
( )7.Mary couldn’t go to school, ___ she was very ill. A. for B. before C. though ( )8.Go straight along the road, ___ you’ll find the hospital at the end of it.
A. since
B. and
C. when
( )9.Take this medicine , ___ you will yet well soon. A. and B. but C. so
( )10.Either she or I ___ him at the airport.
A. is to meet
B. am to meet
C. are to meet