2022年中考英语复习——现在完成时 课件(共21张PPT)

(共21张PPT)
Grammar: 现在完成时
1. 定 义
动作发生在过去，
对现在造成一定的影响。
2. 结构
主+ have/has + V.过去分词 + 其它
3. V.过分
规则变化：
与过去式变化相同
不规则变化：
见附录
4. 标志词
1. already
(肯) 助动词之后，过分之前
3. just
(否疑句)句尾
2. yet
助动词之后，过分之前
2.结 构
主语+has/have(助动词)+done+其他。
1.定 义
表示回忆过去的某种经历。
Grammar : 现 在 完 成 时 (二)
3.时 标
never,ever,before, 次数 等。
4.短 语
have been to (去而已归)去过
have gone to (去而未归)去了
常与“ever, never, before,次数"连用
常与“where..., not here等"连用
5.注意
当have been to/have gone to+地点副词(here,there) 时,介词to要去掉。
N: _________ have you lived here
I: I've lived here _________________.
N: Twenty years! That's a long time.
I: Yes, I've been here ____________.
How long
for twenty years
since 1976
1976
1996
live
20 years
Grammar 现在完成时
1.定义3：表动作发生在过去，并一直持续到现在且可能持续下去
（未完待续）
N: How long have you lived here
I: I've lived here ______________.
N: Twenty years! That's a long time.
I: Yes, I have been here ___________.
1976
1996
live
20 years
for
twenty years.
since
1976
1. for+时间段
2. since+时间点
(过去)
① 明确时间点 （1976）
② 时间段+ago (twenty years ago)
③一般过去时句子
=since twenty years ago
现完时标
(放句尾)
since
two days
twenty minutes
three years ago
last summer
many years
4 o'clock
yesterday
She left here.
for
口头练习：
five hours
eight months
How long have they cried
They have cried for _____________.
They have cried since ______________.
They have cried since ___________________.
10 a.m
12a.m.
cry
2 hours
3. 情景转移
two hours
10 o'clock
the baby's mother left
可持续
Dec.
Sep.
cook
He became a cook.
_________ has he cooked
He has cooked ________________.
He has cooked ________________.
He has cooked ________________.
for three months
since September
since he became a cook
How long
可持续
介词 for 和 since 的区别
典例：
① I have taught English __________ more than 20 years.
② She has worked here __________ five years ago.
③ It is two months __________ he went to England.
④His grandpa has been dead _______ two years.
⑤ Tom has painted _______ yesterday.
for
since
since
since
for
They have cried for two hours.
He has cooked since september.
He has learnt baseball since he was a boy.
现在完成时
延续性动词
for/since...
总结：在肯定句中与since、for 连用的必须为延续性动词；
buy
learn
瞬间性动词
延续性动词
live
leave
四、瞬间v. 转换为延续性v.
瞬间动词
延续性
buy
have
He bought these books yesterday.
bought
不可延续
可 延 续
have
Dec. 21
Dec. 22
He has bought these books for one day .
has had
四、瞬间v. 转换为延续性v.
瞬v
延续v.
buy
borrow
come/go/become
catch a cold
have had
have kept
have been
have had a cold
常用瞬v. → 延续v
转换为
Grammar: 现在完成时（三）
1.定义：表动作发生在过去,并一直持续到现在且可能持续下去。
3. 标志词： ①since+ 时间点（过去的时间或句子）
② for+时间段
2. 结构：主语+have/has + V过分
4、瞬间v. 转换为延续性v.或状态词。
注意：与since，for连用的动词必须是延续性动词。
一、选用since或for填空。
1. We have learned English __________
Grade Three in primary school.
We have learned English _________ five years.
2. He hasn’t felt well __________ last night. Has he seen the doctor
since
for
since
3. I have read this story book __________
three days ago. I haven’t finished reading it yet.
4. It has snowed ________ two days. Everything
is covered with snow.
5. We have cleaned the classroom _________
half an hour.
6. We have studied at this school __________ 2003.
since
for
for
since
be covered with 被…覆盖
finish doing sth.
完成某事
练习四、单项选择
( ) I _____ at this school for two years.
A. am studying B. study
C. studied D. have studied
( )2. We have been friends since _____.
A. before five years B. five years
C. five years ago D. five years before
D
C
二、精挑细选。
( ) 3. The old man got sick last April and _____ in bed
since then.
A. Was B. had been
C. has been D. would be
( )4. ---Do you know Mary well
---Yes, she and I ______friends since
we met in London last summer.
A. have make B. were
C. have been D.become
C
C
( ) 5. This film is worth _______.
A. see B. to see C. saw D. seeing
( ) 6. How time flies! It’s been nearly two years
______we came to this school.
A. when B. since C. for D. before
D
B
( )7. _______ have you studied English
A. When B. What
C. Where D. How long
( )8. I have been here 1985.
A. in B. for
C. since D. about
D
C
三、慧眼识错 （写出正确的句子）。
I have gone to Beijing last year.
__________________________________________
2. They haven’t already come back.
__________________________________________
3. She has lost her bike two years ago.
__________________________________________
4. We have lived here for 1985.
__________________________________________
5. My brother has finished his homework yet.
__________________________________________
My brother has already finished his homework.
I went to Beijing last year.
They haven’t come back yet.
She lost her bike two years ago.
We have lived here since 1985.
四、用所给词的适当形式填空。
1. _______ you ______ (find) your science book yet
2. She _________ (live) here ever since she was ten.
3. Half an hour ____________ (pass) since the train
________(leave).
4. Mary________(lose) her pen. ________ you
_________(see) it here and there
5. --Are you thirsty --No, I ________ just ________ (have) some orange.
Have
found
left
has passed
has lived
lost
Have
seen
have
had
6. ________ they ________ (build) a new school in the
village
7. I ______________ (not finish) my homework . Can you
help me
8. My father ______________ (read) the novel twice.
9. So far I _____________(make) quite a few friends here.
10. I ______ already _______ (see) the film. I ______
(see) it last week.
Have
built
haven't finished
has read
have made
have
seen
saw