讲解The Present Perfect Tense(一)
(2010-07-29 17:25:02)
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音乐延续性动词have现在完成时格林上海教育 |
讲解The Present Perfect Tense
一、理解概念的两个层面
1.
如:① Eddie has lived with Millie for four years.
(“居住”这一动作发生在过去,对现在造成的影响或结果是他们仍住在一起)
② They have already seen
the film.
2.
如:① He has worked here for five years so far.
到目前为止,他已在这儿工作五年了。
(“工作”这个动作发生在五年前,该动作从过去一直延续到现在。)
②We have learned English for about two years.
(“学习”这一动作发生在两年一直持续到现在,并不意味着结束。)
二、分清结构
have//has + 分词 |
现在完成时的结构
1.
如:Sandy has seen some films recently.
如:① I have already finished the work.
3.巧记过去分词
①
②
A—A—A (三词同形)
或者变化元音的:
如:i—a—u
如:ring—rang—rung (同类的begin, sing, swim, sink, drink)
实在无规则可循的只有加强记忆。如:do---did—done等
三、牢记标志词
掌握现在完成时的标志词,对正确使用时态有很大帮助。现在完成时的标志词通常有:already, ever, for, just, never, since, yet, so far, by now等。 关于它们的用法此处不详说。
五、强调两个区别
1.
仔细阅读下面两个句子,想一想有什么不同。
I came back to Beijing in 1999.
I have been back to Beijing since 1999.
如:I have seen the film. 我看过这部电影。 (我了解这部电影的内容)
Mr Green has lived in the city
since 2000.
Mr Green lived in the city in
2000.
2.
(1)
如:Where is Mr
Wu?
(2)
如:I have never been to
Shanghai.
(3)
如:My cousin has been in Shanghai for several years.
六、熟练运用一些常见句型
1)It/This/ That is the first (second, third) time /week/ year + that 从句, that 后面的从句用现在完成时。
2) It has been 或is + 段时间 + since 从句, since后面的从句用过去时。
3) 段时间+ 完成时结构+ since 从句
同学们,如果你掌握了以上用法,相信你会轻松走进开心考场。
品尝开心果:现在完成时专练
1.
B: I ______ in Beijing. I’ve just come back.
C didn’t see, will
be
2.Where is Pingping?
3. Look! What a clean room! Who _____ it?
4.A: Millie, _____ you ______ your
ticket?
5. Have you _______ (know) him since then?
6. He _______ (wait) for an hour already.
7.They have already bought the book for me. (改为否定句)
8.Sandy has never seen the old man
before.
9.I’ve studied English since three years ago. (对划线部分提问)
参考答案:
1.B
7.haven’t yet