题目内容
5.The students didn't stop talking _____ the teacher came in.( )| A. | before | B. | until | C. | when | D. | because |
分析 直到老师进来的时候,这些学生才停止说话.
解答 答案:B.
before意思是"在…之前"引导时间状语从句;until意思是"直到…才…"引导时间状语从句,经常和not构成固定搭配"not…until…"意思是"直到…才…";when意思是"当…的时候"引导时间状语从句;because意思是"因为"引导原因状语从句.根据"The students didn't stop talking"以及"the teacher came in"可知要用until来和前面的not来构成固定结构"not…until…"所以要用until来填空,故选B.
点评 首先要掌握这几个连词的意思以及用法,然后结合具体的题目,就可以确定正确答案.
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