现在完成时 和 现在完成进行时

现在完成时：动作发生在过去、已经完成的动作，强调对现在有一定的影响。

当然也可以表示持续到现在的动作或者状态。

构成是：have/has +done
现在完成进行时：动
作开始于过去，持续到现在，强调动作现在正在进行或者刚刚结束。

构成：have/has+
been+doing
试比较：
1.We have been cleaning the
classroom．
2.We have cleaned the classroom．
第二组：
1.Helen has read a book about
Stone.
2.Helen has been reading a book about Stone.
做几个典型题。

1.Now that you____
a famous mountain climber, what are you
going to do?
A. have been
B. are
C.
were D. had been
Key:A
2. A:I am almost
tired out.
B:So you are. You___ on the documents all day.
A. are working
B. have worked
C. were working
D. have been working
Key: D
3.You don’t need to describe her. I
__her several times.
A. had
met B. have met
C.
met D. meet
Key:B
4.Mr. White works as a lawyer now, but he ___as an actor for several
years.
A.
worked B. has worked C. had
worked D. had been worked Key:A
5. I___ my washing machine the whole morning. I must get it done before noon.
A. have
repaired B. am repairing
C. will repair
D. have been repairing
Key:D。