Unit1Past and present Grammar课件

课件41张PPT。Unit 1 Past and present
Grammar 1学科网 zxxk现在完成时(Present perfect tense)have/ has + PP（动词的过去分词）学科网 zxxkHave/ Has + 主语 + 动词的过去分词…?一般疑问句Underlining the present perfect tense in the following sentences 1 They have learned about 20 Chinese songs since they came to China.
2 Has he played computer games for one hour? Yes, he has.
3 My daughter has watched the game a few times. Forming the past participle of verbs一些不规则动词的过去式和过去分词原形 过去式 过去分词
do did done
come came come
see saw seen
hear heard heard
forget forgot forgotten
write wrote written 上一页下一页ABBAAA ABC ABA写出下列动词的过去式和过去分词:be
give
see
make
put
come
writewas/were been
gave given
saw seen
made made
put put
came come
wrote written不规则动词见书上122-123页不规则动词表.Finishing Part A on page 141 borrow
2 hope
3 make
4 get
5 plan
6 cry7 send
8 watch
9 say
10 grow
11 hit
12 enjoy1 borrow
2 hope
3 make
4 get
5 plan
6 cryborrowed
hoped
made
got
planned
criedsent
watched
said
grown
hit
enjoyedThe Present Perfect TenseWe use the simple past tense to talk about what happened at a definite time in the past.
Past present
Daniel went to Beijing two years ago.一般过去时表示过去某个时间里发生的动作或状态 ，与现在已经没有任何关系。We use the present perfect tense to talk about things that started in the past and continues to the present.
Eddie has lived with Millie since he was born.

Eddie has lived with Millie for four years.
presentPastPastpresent4 years现在完成时表示一个动作发生在过去并持续到现在。1. Daniel a new book yesterday. (buy)
2. Daniel just a new book. (buy)
presentPastPastpresent现在完成时表示一个动作发生在过去，并对现在产生了一定的影响，与现在有联系。（不强调动作，强调影响或后果）bought has boughtDaniel has a new book now. I have been a teacher for 25 years. I am an English teacher. I have been a teacher since 1999.
I have been a teacher since 15 years ago.I became a teacher in 1999.
I became a teacher 15 years ago.
（过去的时间） I have been a teacher since I left college in 1999.（时间段）发生在过去的动作现在完成时标志1：since +过去的时间/动作
现在完成时标志2：for+一段时间since 和for:1) Eddie has lived with Millie since 2001.
Eddie has lived with Millie since 4 years ago.
Eddie has lived with Millie since he was born.since + 过去的时间或动作 （ 词、词组或句子）2) Eddie has lived with Millie for four years.for + 时间段 3) 对以上句子划线部分提问:How long has Eddie lived with Millie?1. We have learned English ______ Grade 3
in primary school.
2. We have learned English ______ 5 years.
3. He hasn’t felt well ________ last night.
Has he seen the doctor?
4. I have read this story book _______ 3
days ago.
5. It has snowed ______ two days.
6. We have cleaned the room _____ half an
hour.
7. We have studied at this school 2003.
选用since 或for 填空:sinceforsincesinceforforsince选用 for和 since填空:
1.We haven’t seen each other ______ a long time.
2.His father has been in the Party ______ 10 years ago.
3.The film has been on ______ 20 minutes.
4.Mr Green has worked here ______ he came to China.
5.His grandparents have been dead ______ several years.
6. It’s five years _______ we met last time.forsinceforsinceforsince下一页上一页现在完成时标志3：already, ever, just, (not) yet, recently, up to now, until /till now，before, so farI have already read the book.
Have you ever moved house?
She has just bought a computer.
I have not done my homework yet.
Our teacher has been very busy recently.
Yang Hongying has written 60 books up to now /until now / till now.
I haven’t seen a dinosaur before.Finishing Part B on page 14
1 They __________ (finish) their homework already.
2 John _______ never _____ (visit) China.
3 Mr Li __________ (repair) over ten
bicycles since Monday.
4 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.
have finished has visitedhas repairedhaven’t seenhas taughthaven’t comeFinishing Part B on page 41
1. I (finish/just) my homework.
Millie (finish) her homework 20
minutes ago.
2. I (write) an email to my friend yesterday.
Daniel (write/already) two emails.
3. I (be) in Hainan last month.
Some of our classmates (not be)
to Hainan yet.
4. I (live) in ST since I was born.
Daniel (live) in Nanjing in 2007.have just finished finished wrote has already written was haven’t been have lived lived Finishing Part C on page 15
M: ________ you ________ (see) any
films recently, Sandy?
S: No, I haven’t. What about you?
M: Well, I ________ (see) one last Saturday.
S: What is it about?
M: It’s about the changes in Beijing over the past century. From this film, I ________ (learn) more about Beijing’s past and present.
S: Oh, I think I ________ (hear) about the film. Do you plan to see it again?
M: Yes, I’d like to.Have seensawhave heardhave learnt现在完成时态中already, yet, just, never, ever用法区别1、already意思是“已经”
①通常用于陈述句中（置于have和has后）
She has already found her bike.
2、yet用法
①yet用于否定句，此时译为“还”；
I haven’t found my ruler yet.
②也可以用于疑问句，译为“已经”
Have you found your ruler yet？
现在完成时态中already, yet, just, never, ever用法区别3、just主要用于肯定的陈述句中，意思是“刚才”
I have just bought a new book.
4. never用于否定句中，译为“从不”
I’ve never seen a UFO.
5、ever用于疑问句中译为“曾经”
Have you ever seen a UFO?肯定句疑问句否定句already(已经) just（刚刚） never（从未） yet （还未）ever （曾经） yet （已经）1.The boy has already gone home . (否定句) 2. The girl has not come back yet.（肯定句） 3.They have already visited China. （一般疑问句）The boy has not gone home yet.The girl has already come back.Have they visited China yet?句型转换1.They have already finished their homework.
(改为一般疑问句，并做肯定回答)
2.Mr. and Mrs. Li have come back.(改为否定句)
3.John has already played this computer game
a few times.(改为否定句)
4.We have seen that film.
(改为一般疑问句，并做否定回答)
5.Mr. Dong has repaired over ten bikes
since last Monday. (改为否定句)课堂检测I have read this book many times.
She has been to Beijing twice.
现在完成时还可表示一个动作多次发生
时间状语有many times/ a few times/ four times/ twice等
How many times has she been to Beijing?
另外时间状语还有：in the past few years, over the years, during/in/over the past twenty years
Great changes have taken place in our hometown in the past thirty years.
( )1.—I 've _____finished my homework.
Have you finished your homework____? —No, not_____.A. yet; already; yet B. already; yet; already
C. yet; already; already D. already; yet; yet
( )3. --Have you returned the book to the library ___?
--Yes, I have __ returned it.
A. yet, yet B. already, already
C. already, yet D. yet, already1 Have you done your homework ____ ? ( for, just, yet)
2 I have ______ been to Chengdu. ( for, never, yet)
3 He has worked there _____ he left school. (already, just, since)
4 She has known Sam ______ nine years. ( for, never, since)
5 Have you _______ ridden a horse? ( ever, for, yet)
6 They have _____ arrived. (ever, just, yet)
7 He has_____ washed the dished. ( already, ever, for)
8 We have not completed the project ____ . ( already, for, yet) yetneversinceforeverjustalreadyyet1.He ___________ (wait) for an hour.
2.I _______________(not finish) the work yet.
3.?______ you ______ (know) him since then?
4.I ___________ (not hear) from my brother for a long time.
5.We ___________ (be) there many times since 3 years ago.
Fill in the blanks with the correct forms of the verbs.
has waitedhaven’t finishedHave knownhaven’t heardhave been6.How long __________ you __________ (stay) at home already?
7. He ___________ (not read) the book before.
8.Her sister ________ (go) to Changchun. She________ (leave) this morning.
9.He ___________ (live) in his hometown since he left here.
10.The writer ____________ (finish) several story-books since 1990.havestayedhasn’t readhas gonelefthas livedhas finished
Filling in the blanks with the words given
1 She __________ (wait) for two hours already.
2 They _______________(not finish) the project yet.
3 _____ you ______ (hear) from my sister recently?
4 Mark _________ (be) there for two days.
5 _____ they ever _____ (stay) at home alone?
6 I _____ never ________ (watch) this film .
7 Daniel ______ just _________ (arrive) home.
8 We _____________(not eat) anything since
then.has waitedhaven’t finishedHave heardhas beenHavestayed watchedhavehasarrivedhaven’t eatenCompleting the following sentences
1 我认识这位作家有五年了。
2 她从出生以来就住在这里。
3 我们的家乡最近发生了很大的变化。
4 你曾去过香港吗?
5 埃米还没收到她叔叔的来信。
I __________ this writer_____________.She ______ here_________.Our hometown ___________ a lot ________._____ you ____________ Hong kong?Amy _________ a letter from her uncle ___.have knownfor five yearshas livedsince she was bornhas changedrecentlyHaveever been tohasn’t gotyet
用括号中动词的适当形式填空
He (wait) for an hour.
I (not finish) the work yet.
you (know) him since then?
I (hear) from my father recently.
We (be) there many times in the past 3 years.
They (finish) the work so far.
How long you (stay) at home already?has waitedhaven’t finishedHaveknownhave heardhave beenhave finishedhavestayedPractice:9. I (not read) the book before.
10. He just (do) it.
11. My sister (walk) to school every day last year.
12. We (have) an exam again sometime next week.
13. Up to now, we (plant) 2000 trees.
14. Lucy (go) to Shanghai.
She (leave) this morning.
15. Tom (buy) the bike for 2 years.hasdonewalkedwill havehave plantedhas gonelefthave boughthaven’t read动 词 填 空：
1._____ you ________(clean) the room?
Yes, we __________(do) that already.
When _______ you ______(do) it?
We _______(do) it an hour ago.
2.______ he ______(see) this film yet? Yes.
When _____ he _____(see) it?
He ______ it last week.
3. How many times _____you______(be) there?
Havecleanedhave donediddodidHasseendidseesawhavebeen下一页上一页4. I __________ (read) the novel twice. It’s interesting.
5. She _________(go) to Pairs, hasn’t she? Yes.
How ______ she _______(go) there?
She _______(go) there by air.
6. So far, many countries _______________(develop)
their software programs.
7.Mr Chen ______(give)up smoking last year.
8.Mr chen __________(give) up smoking since last year.
9. He (teach) us English for two weeks last year.
10. He (teach) us English for two years.
have readhas gonedidgowenthave developedgavehas given下一页上一页1. She has already cleaned the kitchen. (改为否定句)
→She __________ cleaned the kitchen ___________.
2. They have visited some interesting places in China. (改为一般疑问句)
→___________ they _____________ ___________ interesting places in China?
3. The poor dog has died.(改为一般疑问句并作否定回答）
→_________the poor dog _________? -No, it __________.
4. They have borrowed ten books from the library. (对划线部分提问)
→_________ _________books __________ they _________ from the library?
5. Have you ever been to the Great Wall?(改为否定句)
I ________ ________ been to the Great Wall.
6. They have studied here since they moved to the city. (对划线部分提问)
___________ ___________ _________ they _________ here?
hasn’t yetHave visited anyHas died hasn’tHow many have borrowedhave neverHow long have studied1.Julia isn’t going to the cinema with us because she _________ the film.
A. sees B. saw C. will see D. has seen
2.--Your shoes are so old. Why don’t you buy a new pair?
--Because I ______ all my money on an MP5.
spend B. have spentC. will spend D. was spending
3.— When can I see the doctor, madam?
— Let me see. Sorry, you ____________ your turn, so you’ll have to wait again.
are missing B. have missed
C. will miss D. missed
?
4.—Mike, why are you watching TV again?
— I my homework.
A. finish B. finished
C. have finished D. had finished
5. —Do you know the Englishman?
—Yes. I _____________ him for two years.
A. get to know B. have known
C. knew D. got to know
6. —Where is Tom? We can’t find him anywhere.
— Perhaps he _____ home.
A. has come B. is going
C. went D. was going
7. --- Why won’t you go to the movie with me, Gina?
---- Because I it twice.
A. see B. have seen C. saw D. will see
8. —China develops so fast.
—That’s true. It ______ a lot already.
A. changes B. changed
C. will change D. has changed
9. —Are Li Yan and Wang Mei still living in Nanjing?
—No, they ____ to Shanghai.
A. had moved B. moved
C. will move D. have moved
10.— _____ you _____ the movie Gongfu Panda II ?
— Not yet. I'll see it this Sunday.
A. Did, see B. Do, see C. Have, seen D. Will see
11.— How do you like your English teacher?
— He is great. We friends since three years ago.
A. were B. have made
C. have been D. have become
12. Though he ____ the book three times, he hopes to read it again.
A. read B. reads C. has read D. will read