Be careful,there're many pitfalls.
1 .Mr Hall understands that __________ math has always been easy for him, it is not easy for the students. (2003北京春)A. unless B. since
C. although D. when
2. —Was his father very strict with him when he was at school?
—Yes. He had never praised him __________ he became one of the top students in his grade. (2003北京春)
A. after B. unless
C. until D. when
3. Sally worked late in the evening to finish her report __________ her boss could read it first next morning. (2003北京春)
A. so that B. because
C. before D. or else
4. He made a mistake, but then he corrected the situation __________ it got worse. (2003北京)
A. until B. when
C. before D. as
1. C。句意为: Mr Hall 懂得尽管数学对他来说一向容易,但对于学生来说并不容易。
2. C。until 与否定的主句连用,意为“直到…才”。
3. A。so that(为了、以便)引导目的状语从句。
4. C。before 在…之前。句意是:他犯了个错误,但他还没等事情恶化,就扭转了局面。
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1378期英语语法讲解:状语从句[2012年2月26日]
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