新目标英语八年级下：现在完成时复习课 课件
-----现在完成时态
语法练习课
时态
不同时间发生的动作，动词要用不同形式
已学习过的时态
1.v原形 2. v三单
am/is/are+v-ing
1.will/shall+v原形
2.am/is/are going to +v原形
1.v-ed（规则动词）
2.不规则动词
was/were+v-ing
判断下列句子的时态
1.She works in a factory.
2.I was doing my homework at this time yesterday.
3.We are going to have a picnic this Sunday.

4.They held a sports meeting last week.

5.Are you helping your mother .
一般现在时
过去进行时
一般将来时
一般过去时
现在进行时
现在完成时
1.过去发生的动作对现在造成的影响或结果。
2.过去已经开始，持续到现在的动作或状态
动词构成：have/has+v过去分词
had breakfast
I have just had my breakfast.
(现在我不饿)
I’m not hungry now
moved here
in 2000
I still live here
I have lived here for three years.
I have lived here since 2000/three years ago.
now
现在完成时动词构成:
have / has + v 过去分词
助动词
否定
haven’t
hasn’t
疑问
Have you……?
Has he……?
动词的过去分词形式
1.规则动词
2.不规则动词
finish--finished--finished
live--lived--lived
carry--carried--carried
stop—stopped--stopped

Eg.
go—went—gone
see---saw—seen
forget—forgot--forgotten
I, finish,
homework
I haven’t finished my homework.
Have you finished your homework?
Yes, I have. / No, I haven’t.
I have finished my homework.
1. 她成为一名护士已经三年了。

2. 我五年前就认识李雷了。

3. 那些相片我已经寄给他了。（post）

4. 我来到这个学校后，他就一直教我。

5. 我刚丢了我的历史书。
She has been a nurse for three years.
I have known Lilei since five years ago.
I have already posted the photos to him.
He has taught me since I came to the school.
I have just lost my history book.
( 1).for+表示一段时间的短语
( 2).since+表示过去时间点的词语
( 3).since+表示过去时间的时间状语从句
eg.I have been a teacher ______ a year.
He has been at this school _______ 1992.
We have learned 1,000 English words _______ we came to this school.
for
since
since
B. just, already, yet, before/ ever, never
有此类副词时,常强调动作完成,不强调动作的持续.
eg.Have you _____been to Japan?
I have _____ finished my homework.
I have finished my homework ______.
I haven’t finished my homework ____.
ever
just
already
yet
1.现在完成时句中常见的时间
A.表示从过去一直持续到现在,不能是具体过去时间
2.区分短暂性动词与持续性动词.
表示短暂性(瞬间性)的动词在现在完成时的句中不能和一段时间连用.即for,since短语或how long问句
come/arrive
go out
leave
begin
buy
borrow
join
die
catch a cold
be at/in …
be out
be away (from)
be on
have
keep
be a member of
be dead
have a cold
改错:
How long have you become a league member？
For more than one year.
Have you arrived here since last night.
Yes，you’re right.
The dog has died for a month.
He has gone to Shanghai twice.
How long have been at this school?
Since two years .
been
been
been dead
been
ago.
For
Thank you
Bye-bye!