We have learned English two years．( )A．sinceB．forC．in 题目和参考答案——青夏教育精英家教网——

题目内容

17．We have learned English______ two years．（　　）

A．

since

B．

for

C．

in

分析我们学英语两年了．

解答答案：B．
结合语境可以推断这句话表达的意思是"我们学英语两年了．"，句子所用的时态是现在完成时，设空处后面是时间段，所以用介词for，"for+时间段"通常用于现在完成时，故选B

点评英语介词的一个特点是一词多义，并且介词间语义交叉现象很多，习惯用法也很多，有时很难从词义上区分开来．故学习中要注意不断总结，熟记一些介词和动词的固定搭配用法及习惯用法，是完成此类问题的捷径．

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