真题再现
2. --Look! Someone ______ the classroom. --Well, it wasn’t me. I didn’t do it.
A. is cleaning B. was cleaning C. has cleaned D. will clean
现在完成时意义与一般过去时的区别
延续动词与非延续动词
现在完成时表持续,在肯定句和疑问句中动词要用延续性动词
延续性动词:动作可持续 learn, work, stand, lie, know, walk, keep, wait, watch, sing, read, sleep, live, stay, have
非延续性动词:动作不可持续,只发生在一瞬间 buy, borrow, die, leave, begin, join
Linda has found her book. 结果:不需要再找了。
真题再现
1. I don’t feel very well, Jack. I’m afraid you ______ me your cold.
A. give B. had given C. have given D. would give
小试牛刀
3. --Look at the blue sky! The rain _______. --Let's go out for a walk.
A. stops B. will stop C. has stopped D. had stopped
小试牛刀
4. He _______ the city since he graduated from college.
延续动词与非延续动词