现在完成时教案

E.g, He has seen the film several times. 这部电影他已经看了好几次了。（已完成）

E.g. I have known her for a ling time. 我认识她很长时间了。（未完成）

否定句：主语+have/has+not+ 过去分词+其他

一般疑问句：have/has+not+ 主语+过去分词+其他

（四）常用时间状语：

“ since+ 时间” ，“for+ 时间段” 及how long, since, ever, never, already, yet, twice, so far, up to now, over the years, in the last/past few years.

1.Si nee表示“自从... 以来”时，无论是用作介词、连词还是副词，since通常

要与现在完成时连用。如：

I' ve had nothing to eat since lun chtime. 从中午至U现在我什么都没吃。

It has bee n a long time since the TFboys foun ded. TFboys 成立很久了。

It has ten years si nee he left here. 他离开这儿已10 年了。

2.In the last few years/ in the past few years ，“在过去的几年”表示从现

在算起的过去一段时间内，通常要与现在完成时连用。如：

The house has cha nged hands three times in the last two years. 在过去的两年中，这栋房子已转手三次。

I' ve see n little of her in the past few weeks. 近几周我很少见到她。

3.Over the years “这些年来”“经过这么多年之后” “最近几年”，通常表示从现在算起的过去几年。

She' s brought us so much happ in ess over the years. 这些年来，她给我

She has bee n to Europe twice.

他到欧洲去过两次。

另外，have been to 除了可接地点表示去过某地外，有时可以接活动，表示去

参加过某种活动，或接动词原形（尤其是动词

see ），表示去做某事。如：

She ' s just been to a party.

她刚参加了晚会回来。

He has n ever bee n to see me since I have bee n ill.

我生病以来他从未来看

过我。

（六）现在完成时的肯定句中 瞬间动词（buy,die,join, come,go leavejoin... ）

不能直接与fo 叶时间段，since+时间点连用。要将其改为延续性动词。 口诀：开始离去，借来还，出生入死，买到家。

+开关结束

Beg in, leave,go,borrow,come,retur n, leavejo in, die,buy,arrive.

3.

用 be 代替 become

How long has your sister bee n a teacher? 4. 用 have a cold 代替 catch a cold

Tom has had a cold since the day before yesterday.

Beg in-- be on come/arrive/reach/jo in leave-- be away Open--be ope n

1. Have 代替 buy

My brother has had

2. Keep/have

I have kept

go out---be out

-be in

die--be dead

close---be closed

（不能用 has bought

）

代替borrow

（不能用 have borrowed

borrow--keep

Return--come back to

Buy--have

finish ——be over

）this bike for almost four years.

the book for quite a few day.

教学练习

一、判断以下句子的时态。

1.He is a worker.

2.I played basketball yesterday.

3.1'e washed the car.

4.My father goes to work by car every day.

5.Xiao Ling always studies hard.

6.You and I will work in the same factory.

7.Jia Min sometimes plays computer games.

8.She is reading an English book.

9.My mother is going to Shanghai tomorrow.

10.Shall I get your coat for you?

11.You should take the medicine three times a day.

12.I am never late for school.

13.What was she doing at nine o ‘ clock yesterday?

14.Rose usually goes shopping with her mother.

二、单项选择。

1、Both his parents look sad. Maybe they _______________ wha t s happened to him .

A . knew

B . have known

C . must know D. will know

2、He has ___________ been to Shanghai, has he?

A . already

B . never

C . ever

D . still

3、H ave you met Mr. Li ____________ ?

A. just B . ago C .before D .a moment ago

4、T he famous writer ___________ o ne new book in the past two year .

A . is writing

B .was writing

C .wrote

D .has written

5、一Our country ___________ a lot so far . —Yes. I hope it will be even ______

A . has changed ; well

B . changed; good

C . has changed ; better D. changed; better

6、Z hao Lan ____________ already __________ in this school for two years .

A . was; studying

B . will; study

C . has; studied D. are; studying

7、We _________ Xiao Li since she was a little girl .

A . know

B . had known

C . have known

D . knew

8、Harry Potter is a very nice film. I ___________ it twice .

A. will see B . have seen C. saw D .see