(完整版)现在完成时讲解和练习(中文讲解).doc

现在完成时的用法和练习

一、在完成的基本用法

1. 表示去生的作在的影响和果。常用副just, already 和 yet，

通常作：做了某事，已做了某事，没有做某事在完成的此用法只用一般

疑句提。

He has left Beijing. 他已离开北京了。 (He is not in Beijing now.)

I have just had lunch. 我吃午。 ( I am not hungry now.)

She has already cleaned the house她.已把房子打了。 (The house is now very

clean.)

We haven’tthrown out the trash. 我没有把垃圾扔出去。（The trash is still in the

house）.

Have you done your homework yet? 你的作已做了？

Yes, I have.No, I haven’t.

Ex.

1.We ___________ just ___________ (have) a P.E. class. We are very tired now.

2.She _______________________ (not find) the key __________. She can’tget into

the house.

3.He ______________________ (go) home. He is not at school now.

4.__________ you __________ (tell) your parents about it _________?

5.I __________ already __________ (tidy) the room. It’s not messy any longer.

2. 表示到在止曾有某种。常用副ever, never 和 before. 通常

作：曾做某事此用法通常也只用一般疑句提或是用how many times 提。

Have you ever swum in the sea?No, never.

Have you ever eaten pizza?Yes. A lot of times.

I have been to America once.

He has never traveled by ship.

Have you drunk whisky before?

How many times have you visited the Great Wall?

*This is the most interesting book I have ever read.

*This is the second time I have flown in a plane.

Ex.

1.--__________ you __________________ (ever run) marathon?

--No, I haven’t. It ’stoo hard for me.

2.He _________________________ (visit) the Summer Palace three times.

3.--__________ you __________________ (ever be) to Macao?

--Yes, I have. It’s an interesting place.

4.This is the highest building I ___________________________ (ever see).

5.I __________________________________ (never play) golf.

6.This is the first time she ___________________________ (be) a volunteer. 3. 表示

从去某一开始，持到在的作或状，常用for + 一段 ,

since＋去的一个点或一般去的从句 , (since 1980/two years ago/he moved to this city) so far, recently, in the last/past⋯ years 等副或短。通常作：做某事做了

多了，自从某就一直做某事，到目前止已做了此完成的用法通常

用 how long 提 , 或是有关量的提。

I have been a teacher for five years.

They have worked in the company since 1998.

--How long have played computer games?--For two hours.

He has lived in Beijing since he was born.

I haven’tseen him recently.

--How many English words have you learned so far?--About 1500.

Ex.

1.I ____________________ (know) him for ten years.

2.We _____________________ (live) in this house since 1990.

3.I ________________________ (not see) her since she ____________________

(leave) Beijing.

4.She ________________________ (write) five books since she _________________

(become) a writer.

5.They ______________________ (not spend) a holiday in the last few years.

*注意：在在完成的句子中，必是持性/延性，一点与中文不同。中文中点

（止性或非持性）也可以和

表示一段的状用。而在英句子中必将些成相的持性。比下

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