John thinks it won’t be long _________ he finishes the tough work.A．whenB．afterC
题型：不详难度：来源：
John thinks it won’t be long _________ he finishes the tough work.| A．when | B．after | C．since | D．before |
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答案
| D |
解析
试题分析：考查连词，since表示自从…；when当……时候；after在…之后；时间段+ before，过了多久就……；before主要引导时间状语从句，意为“先于”“…之后才”“(不多久)就…”。当主句是将来时时，从句谓语动词须用现在时；当主句是一般过去时或过去完成时时，从句常用过去时。before引导的时间状语从句不能用于否定式。所以选D
点评：判断从句中用哪个连词，需用记住连词的用法，在句中的作用，连词也是高考的热点，需要考生平时多练习。
即学即练：It may be a matter of months _____ it"s ready.
A. as B. while C. after D. before
选D |
举一反三
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| This study shows that ______language may differ，the order in which young kids learn the parts of speech appears to be the same across different languages. |
David worked hard at his lessons ____ he gained high grades in the exams.| A．so that | B．in order to | C．though | D．because |
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