Mr．Smith English in our school since 1990．( )A．taughtB．teachesC．will teachD．has taught 题目和参考答案——青夏教育精英家教网——

题目内容

15．Mr．Smith________ English in our school since 1990．（　　）

A．

taught

B．

teaches

C．

will teach

D．

has taught

分析史密斯先生自从1990年以来就在我们学校教英语．

解答答案：D 根据since 1990，可知应该用现在完成时态．since 1990是现在完成时的标志词．现在完成时态表示过去发生或已经完成的动作对现在造成的影响或结果．或从过去已经开始，持续到现在的动作或状态．现在完成时态的构成：助动词have/has+过去分词，根据主语Mr．Smith，所以应该用has taught，故选：D．

点评本题主要考查动词时态，做此类题目要注意时间状语、标志词．根据上下文所表达的含义，做出判断．同时更应记清时态的构成形式．就本题而言，主要考查现在完成时态．

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