2011年成人英语三级考试重点语法学习
9. 现在完成进行时
表示从过去某时一直延续到现在的一个动作, 这个动作一般会继续延续下去,或是到说话时结束, 但是强调到说话时为止一直在做的动作。
have + been +doing
has + been +doing
They have been studying English for the years.
You look tired, what have you been doing today?
He has been waiting for three hours
It has been raining last week. It is still raining.
I have been trying to collect more materials for them these days.
真题:
例:I ______on the door for ten minutes now without an answer. (1998) (D)
A. was knocking B. am knocking
C. knocking D. have been knocking
10. 过去将来时
表示在过去预计将要发生的动作, 常用于宾语从句。
He wanted to know when the conference would start.
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