在上节课中，我们学习了「现在完成时」（← 戳可读）的“九字”功能：已完成、持续性、影响性。课后收到一些同学的留言：
今天，我们用一节课时间，把现在完成时、现在完成进行时和一般过去时弄清楚。（点击下图，查看大图）
01. 复习 现在完成时
02. 现在完成进行时
03. 现在完成时 vs 现在完成进行时
两者最大的区别在于：有完没完。
值得注意的是，「现在完成时」和「现在完成进行时」字面翻译差别不大，但细腻一点就能看出其中的区别。经典例句：
04. 现在完成时 vs 一般过去时
这个问题初中的同学问得比较多。
从意义上讲，相同点在于两者的动作都发生在过去，但「一般过去时」的动作发生就发生了，跟现在没有关系；而「现在完成时」强调过去的动作持续到现在，并对现在产生影响。
归纳起来，区别在于——与现在的关系。
从时间状语上看，「一般过去时」常与yesterday，2 days ago，last week/ year，in 2008，the other day（前几天）连用
「现在完成时」的时间状语包括：already，just，yet，up till now，so far， for+一段时间，since+过去时间点
我们来看一组例句：
注意：yesterday，…ago，last… 等表示过去具体时间的词（组）不能跟「现在完成时」连用。
05. 课后练习
1) The unemployment rate in this district ______ from 6% to 5% in the past two years.
A. has fallen B. fell C. is falling
2) So far this year we ______ a fall in house prices by 5 percent.
A. saw
B. have seen
C. have been seeing
3) — You look pale.
— I am tired. I ______ the living room all day.
A. have been painting
B. have painted
C. painted
4) The year 1959 ________ the first appearance of a real flying ship in the world．
A. has seen B. saw C. was seeing
5) — I’m sure Andrew will win the first prize in the final.
— I think so. He ______ for it for months.
A. is preparing
B. had been preparing
C. has been preparing
6) Every student and every teacher ________ to the cinema, so there ________ no people in the schoolyard．
A. have been; are
B. has been; is
C. has gone; are
7) Now that she is out of job, Lucy ________ going back to school, but she hasn’t decided yet.
A. considered
B. considers
C. has been considering
8) Danny ________ hard for long to realize his dream and now he is popular.
A. works
B. has worked
C. has been working
获取答案方式
微·信·公·号：虫虫讲英语
后·台·回·复：有完没完
「虫虫讲英语」老少咸宜的英语学习号 —— 有时候，语法换一种方式讲，就听懂了。
06. 总结
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