题目内容
5.-It's over twenty years ____ I lost touch with my math teacher of the primary school.I really miss him.-Why not ring him up now?Here's his telephone number.( )
A. | since | B. | until | C. | while | D. | before |
分析 -自从我和我的小学数学老师失去联系至今已有20多年了,我真的很想念他.
-为什么现在不给他打电话?这是他的电话号码.
解答 答案A.
since意思是"自从…以来"时,引导时间状语从句;意思是"既然"时,引导原因状语从句.until"直到",引导时间状语从句.while表示"当…的时候",引导时间状语从句;意为"尽管、虽然",引导让步状语从句;意为"而、但是",引导比较状语从句.before"在…之前;才…",引导时间状语从句.这四个词均可引导时间状语从句,但是根据"It's over twenty years"可知,答案应该选A,因为"It is/has been+一段时间+since…"是固定句型,意思是"自从…以来有多长时间了".before应该用于"It was+一段时间+before…"的句型中,意思是"过了一段时间才…".
点评 本题考查从属连词的用法.连词的用法辨析,要注意分析主从句之间的逻辑关系,再确定相应的连词,同时注意不同的连词的语义及用法区别.
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