8B Unit1 Past and present Grammar课件（共34张ppt）

课件34张PPT。 Grammar pastpresentEddie has lived with Millie since he was born.Eddie has lived with Millie for four years.pastpresent4 yearsEddie lived here four years ago.The Present Perfect Tense (现在完成时)一、现在完成时的含义现在完成时用来表示之前已发生或完成的动作或状态，其结果和现在有联系，动作或状态发生在过去但它的影响现在还存在；也可表示持续到现在的动作或状态；还可以表示一个动作到现在为止发生了多少次。二、现在完成时的构成 现在完成时的肯定句
句型:
主语（第一、二人称单复数）+ have +过去分词We have lived in Nanjing for 10 years. e.g. I have finished my report.主语（第三人称复数） +have + 过去分词
e.g. They have moved away.
主语（第三人称单数） +has +过去分词
e.g. He has been in Beijing for two months. 2. 现在完成时的否定句
句型主语+have/has+ not+过去分词
e.g. I have not seen the film yet.
He hasn’t been to Tianjin since
then.3. 现在完成时的一般疑问句
句型 Have/Has+主语+过去分词
Have you….? Has he….?
Yes, I have. Yes, he has.
No, I haven’t. No, he hasn’t. 三、现在完成时的时间副词和时间短语1. 副词already和yet。already一般用于肯定句中，yet一般用于否定句和 疑问句中。
如: We have already finished our homework.
我们已完成作业了。 They haven't finished their homework yet.
他们还没有完成作业。 - I have never watched the World Cup.
我从未看过世界杯。2. 副词ever 和never。多用于否定或疑问
句中，表示“曾经”或“从未“等。?
如: - Have you ever watched the World Cup?
你曾经看过世界杯吗?He has been there twice the last few
days.
近几天他去过那里两次了。3. 用表示到说话时为止的时间状语,
如 : just, before, up to now,
the past/last few years等。
如: I have seen her before, but I can not
remember where.? 我以前见过她，但记不起在哪里见过。如: I haven't seen him for two years.
I haven’t seen him since 2 years ago.
It’s 2 years since I saw him.
我两年没有见过他了。4. 表示动作或状态从某一时刻开始，
一直持续到现在的时间状语: so far, for+ 一段时间, since +过去时间或一般过去时的句子。四、过去分词的构成travelledmovedstayedownedlearnedvisitedstoppedfinishedshoppedsolvedA. 规则动词的过去分词We add ‘-ed’ to regular verbs. B. 不规则动词的过去分词thoughtcaughtgivenmadewrittenputcostgrownhurtrunfeltfallenflownhaddrunkbroughtwornsungforgottenkept 动词原形 动词过去式 动词过去分词
A B B bring brought brought
A B C do did done
A A A let let let
A B A come came come
A A B beat beat beatenPage 122-123Finish P14 Part AComplete the sentences using the
present perfect tense.(P14. PartB) They ____________(finish) their
homework already.
2. John____ never______(visit) China.
3. Mr Li __________(repair) over ten bicycles since Monday.visitedhave finishedhas repairedhas4. We ____________(not see) each other for years.
5. My parents____________(not come) back yet.
6. Our teacher __________(teach) us a lot about the history of China.haven’t seenhave not come has taught Millie: (1)_____ you ______(see) any films recently, Sandy?
Sandy: No, I haven’t. What about you?
Millie: I (2)_____(see) one last Saturday.
Sandy: What’s it about?
Millie: It’s about the changes in Beijing over the past century. From the film ,I(3) ___________(learn) more about Beijing’s past and present.Chat time.(P14. PartC)Haveseensawhave learnedSandy: Oh, I think I(4) __________(hear) about the film. Do you plan to see it again?
Millie: Yes, I’d like to.have heard1. He ______________ (not finish) the
homework yet. He will try to finish it
quickly.
2. My family ________ (live) in Nanjing
since 1996.
3. _____ you ______ (know) him since
then?More practicehasn’t finishedhave livedHaveknown4. They _____ already _______ (decide)
to go to Kunming for the holiday.
5. We ___________ (move) to the new flat
since last month.
6. The girl __________ (learn) English for
about two years. havedecidedhave movedhas learned7. My father went to Beijing two weeks ago. I____________ (not see) him since then.
8. ____ Tom _______ (write) letters to you recently?
9. Jack’s mother isn’t at home. She ________ (go) to the supermarket.
10. The film ________ (be) on for about
20 minutes. We missed the beginning.haven’t seenHaswrittenhas gonehas been( )1. I have finished my homework ____.
Have you finished your homework
____?
A. yet, yet
B. yet, already
C. already, yet
D. already, already单项选择:( )2. He has ____ seen the film Harry
Potter. So he knows nothing about it.
A. already B. ever
C. never D. yet ( ) 3. She has been ill in bed ____ two days ago.
A. since B. in
C. during D. for
( ) 4. — Have you seen him ____?
— No, I haven’t.
A. already B. never
C. ever D. recently( ) 5. I have ____ watched a wonderful
film. It’s really interesting.
A. yet
B. just
C. just now
D. never( ) 6. — ___you __a ticket for the football
match?
— Not yet.
A. Is, bought
B. Are, bought
C. Has, bought
D. Have, bought
( ) 7. Great changes ____in China since
1978.
A. was happened B. have happened
C. have been happened
D. happened( ) 8. Tom ______a lot of friends since
he came to China last year.
A. made B. makes
C. is making D. has made
( )9. “Frozen” is a very interesting film. I ___ it twice already.
A. will see B. saw
C. see D. have seen( )10. They ___ since the factory opened.
A. have worked there
B. have worked here
C. worked there
D. worked here
( )11. — Lucy, __ you ___ your ticket?
— Not yet.
A. did, find B. have, found
C. has, found D. do, find( )12. — What are you going to do this
Saturday?
— I ____ yet.
A. haven’t decided
B. won’t decide
C. am not decided
D. didn’t decide Remember the use of present perfect tense.
2. Preview Integrated skills.Homework