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条件状语从句是历年中考考查的热点之一。本文以历年全国各地的中考试题为例,对条件状语从句的考点作一归纳,希望能对同学们的学习有所帮助。
[考点一] 考查if引导的条件状语从句
if为从属连词,意为“如果”,引导条件状语从句。例如:
1. (2008年南通市) ―Perhaps I’m going to the market.
―Would you get me some juice________you’re there?
A. sine B. as C. if D. after
2. (2005年浙江省) ―Would you like to go to the park with me, Susan?
―I’d like to________you don’t want to go alone.
A. until B. before C. if D. after
3. (2005年河南省) All of us will be happy________ you can come with us.
A. while B. if C. but D. or
Key: 1. C2. C3. B
[考点二] 考查unless引导的条件状语从句
unless也是从属连词,意为“除非、如果不”,相当于if ... not, 引导条件状语从句。例如:
1. (2008年河北省) Susan will not arrive at the airport on time________she hurries up.
A. once B. if C. when D. unless
2. (2008年河南省) Your dream won’t come true________you know what your dream is.
A. after B. unless C. while D. since
Key: 1. D2. B
[考点三] 考查主从复合句中条件状语从句的时态
如果主句为祈使句,或者主句中的谓语动词为一般将来时或谓语含情态动词,条件状语从句中的谓语动词通常用一般现在时代替一般将来时。例如:
1. (2008年恩施市) I don’t know if my uncle________. If he________tomorrow, I will be very happy.
A. comes; will come B. will come; will come
C. comes; comes D. will come; comes
2. (2008年青海省) We are not sure if it________tomorrow. If it________our sports meeting will be put off.
A. will rain; rains B. rains; will rain
C. will rain; will rain
3. (2009年镇江市) ―Excuse me, could you take care of my little dog for me?
―________. I________it if it doesn’t rain after supper.
A. Sorry; will walk B. My pleasure; will walk
C. I’m sure; will D. I’m afraid; walk
4. (2007年重庆市) ―The TV show Home With Kids is so wonderful. You shouldn’t miss it.
―If I have time, I________it.
A. see B. saw C. will see D. have see
Key: 1. D2. A3. B4. C
[考点四] 考查其他句式与条件状语从句的互换
由连词and和or连接的并列分句通常可以转换成由if引导的条件状语从句。例如:
1. (2004年黑龙江省) Hurry up, or you’ll miss the early train. (改为以if引导的条件状语从句)
If you ________ , you’ll miss the early train.
2. (2005年广州课改实验区) Do more sports and you’ll be healthier. (改为主从复合句)________ , you’ll be healthier.
Key: 1. don’t hurry up2. If you do more sports