课件35张PPT。Unit 1GrammarPast and presentTo learn to use the present perfect tense
To learn to form the past participles of regular verbs
To learn to form the past participles of irregular verbsLead in Revision.1) How long has Mr Chen lived in Sunshine Town?2) What has the government done to part of the town
centre?3) Why does Mr Chen think it is impossible to see his
old friends as often as before?He has lived there since he was born.The government has turned part of the town into
a new park.Because most of his old friends have moved away.We call them the present perfect tense1.We use the present perfect tense to talk about an action
that started in the past and continues to the present.1) I have lived here since I was born.2) He has lived here since he came to Nanjing.现在完成时定义(从过去开始一直持续到现在的动作).2. We use the present perfect tense to talk about an action
that happened in the past and has a connection with the
present. 1) Eddie has just eaten Hobo’s food.
(Eddie ate the food, and now Hobo has nothing to eat.)
2) I have lost my mobile phone.
(I lost my mobile phone, and now I have no mobile
phone to use.)(发生在过去并和现在有联系的动作)3. We also use the present perfect tense to talk about how
many times an action has happened till now.(到现在为止动作发生了多少次)I have already read this book many times.1. 现在完成时的肯定句 主语 + have / has + V. pp + …e.g. I have finished my homework.
He has written six poems.
They have seen that film. 现在完成时的结构2. 现在完成时的否定句hasn’t = has not
haven’t = have not主语 + have / has + not + V. pp + ……e.g. I have not seen the movie yet.He hasn’t come here yet.3. 现在完成时的一般疑问句
Have / Has + 主语 + V. pp + ……?
Yes, 主语 + have / has. No, 主语 + have / has not.
e.g. 1) I have finished the work. (改成一般疑问并回答)4. 现在完成时的特殊疑问句特殊疑问词 + have / has + 主语 + V. pp + ……？e.g. I have lived here since I came here.（划线提问）_______ ______ _____ you ______ here?Howlonghavelived______ she ________ here?
Yes, she_____. / No, she_______ .______ you _______ the work?HavefinishedYes, I ______. / No, I_______ . havehaven’t2) She has arrived here. (改成一般疑问并回答) Has arrivedhas hasn’t动词的过去分词visitedrepairedlivedmovedtriedstudiedfittedplannedhitputmetmadesoldgivenwrittenthought规则动词的过去分词的构成大多数的动词的过去分词是规则的，只需在动词后加-ed；
work→worked listen→listened jump→jumped visit→visited
2.在以-e结尾的动词后只加-d；
close→closed like→liked agree→agreed move→moved3.在以辅音字母加y结尾的动词，应将y改
为i再加ed；
study→studied carry→carried
try→tried worry→worried
4.以重读闭音节结尾的动词，要双写末尾
的辅音字母再加-ed；
stop→stopped drop→dropped 不规则动词的过去分词的构成有些动词的原形和过去分词相同；
put→put hurt→hurt become→become run→run
2.改变单词中间元音字母；
sit→sat win→won hold→held
3.把单词结尾的字母d改为t；
lend→lent spend→spent send→sent4.以eep结尾的动词，把eep改为ept；
keep→kept sleep→slept
5. 过去分词以aught或ought结尾；
teach→taught catch →caught buy→bought
6.以ay结尾的动词, 把ay变成aid;
7.在原形词尾加n或en；还有些动词的过去分词是不规则的，需要特殊记忆。（课本第122-123页）say→said pay→paidgive→given eat→eaten不规则过去分词的构成上一页下一页ABBAAA ABCDo Part A borrow _______
2. hope ______
3. make ______
4. get ______9. say ______
10. grow ______
11. hit ______
12. enjoy ______ 5. plan _______
6. cry _______
7. send _______
8. watch _______borrowedhopedmadegotpannedcriedsentwatchedsaidgrownhitenjoyed现在完成时常用的标志词1. already 与 yetalready “已经”( 用于肯定句中，常放于行为动词之前，其他动词之后)yet 用于否定句中“还”用于疑问句中“已经，还，仍然”yet 是already 的否定词(放于句末)1 ）I _____already ____ the film.(我已看过这部电影了)haveseen否：I ________ ______ the film ______.haven’tseenyet疑：________ you ______ the film ______?Haveseenyet No , not _____ .“还”“已经”yet2) I ____________ (not have) lunch yet.haven’t had2. ever 与 neverever 曾经主要用于疑问句(放句中)never 从不主要用于否定句(放句中)-- ____ you ever _____(eat) Beijing Duck?--No, ______. Haveeatennever2) He _____ never _____ (read) the story.hasread3. just 与 recentlyjust 刚才用于肯定句中(放句中)recently用于各种句式中(放句末)不久前，最近1) I ______ just _______ (see) him.haveseen2) She ________ _______ (not see ) them recently.hasn’tseen3) ______ you ______ (use) it recently?Haveused4) She _______ ______ (be) busy recently.hasbeen3) She’s never seen the film, ____ ____ ?has she4. since 和 for + 一段时间 常用现在完成时since +短语=for + 一段时间句子(用一般过去时)for + 一段时间1) 常用现在完成时2) 动词必须可以延续3) 用How long 提问1) I ______ (begin) to work here in 2000began= I _____________ here since 2000.have worked2) They __________ (not meet ) each other for years.haven’t metSince 短语和for +一段时间都用how long 提问4) I have lived here since I was born.(划线提问)_____ _____ _____ you ______ here?Howlonghavelived3) She _______(feel) lonely since she ______(move) here.has feltmoved5. 次数(twice/ three times/ ….) 和before(以前)单独放句末常用现在完成时1) He_________ (see) the film twice.has seen_____ _____ _____ ____ he seen the film?Howmanytimeshas 2) ______ you ______ (be) to Beijing Before?Havebeen6. over the (past/last) years 在(过去的)这几年间 e.g. Great changes __________ (take) place over the
past ten years.have taken7. so far , up to now, until/till now 到目前为止e. g. We ____________ (learn) many English songs so far. have learnedSpeaking Let’s practiseA: Have you …?
B: Yes, I have. / No,
I haven’t.
A: Has he / she …?
B: Yes, he / she has.
No, he / she hasn’t.brush your teethbrushed your teethA: Have you …? B: Yes, I have. / No, I haven’t. read the book read the bookA: Has she …? B: Yes, she has. / No, she hasn’t.have PizzaA: Have they …? B: Yes, they have. / No, they haven’t.had Pizza1. 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 finishedhave not comehas taughthave not seenhas repairedhas visitedDo Part B Chat time
M: _____ you _____ (see) any films recently,
Sandy?
S: No, I haven’t. What about you?
M: I _____ (see) one last Saturday.
S: What’s 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.Haveseensawhave learnthave heardDo Part C 我看过这本书许多次了。
2. 我们好几年没看到彼此了。
3. 我父母还没有回来。
4. 你最近看过电影吗？
5. 在过去的一个世纪里
6. 更多了解
I have read this book many times.
We haven’t seen each other for years.
My parent haven’t come back yet.
Have you seen any films recently?
over the past century
learn more about
Phrases1. I’ve already had dinner. (否)
I ________ _____ dinner _____.
2. He has already finished his homework. (否)
He ______ _______ his homework ___.
3. Mum’s never cooked the dinner. (反义疑问句)
Mum’s never cooked the dinner, ___ ___?
4. I have already done my homework. (疑)
_____ you _____ your homework ______?
5. She’s ever read the book . (反义疑问句)
She’s ever read the book , _________ ______?
6. I worked here last year. ( 用since 改写句子）
I ______ ______ here ______ last year haven’thadyethasn’tfinishedyethas sheI.改写句子Have hasn’t she have worked since Exercisesdoneyet 用所给动词的正确时态完成句子1. Hurry up! Lunch ____ already ______ (begin).
2. ____ he ever ______ (ride) a bike?
3. Li Ming _____ (hurt) his arm last week. He ____
already ______ (stay) in bed for five days.
4. Yesterday, she _______ (buy) one book in the bookshop.
She ___________ (not read) it since then.
5. I ____ already ____ (lose) my
pen. I _______ (buy) it two days
ago. hasbegunHas riddenhurthasstayedboughthas not readhave lostbought1. I ________ (have) dinner. I am full.
2. We _________ (read) this story twice.
3. They ________ (see) the movie before.
4. She _____just_______ (buy) some nice toys.
5. Hurry up! Lunch _____ already
______ (begin).
6. We ___________ (wash) our clothes.
They’re clean now.
7. _____ he ever _______ (ride) a bike? have had have readhave seenbought have washedII. Fill in the blanks.Has riddenhasbegunhas — _______ you ever _______ with a group?
— Yes, I have.
A. Did, study B. Are, studying
C. Were, studying D. Have, studied
2. — Lucy, _____ you ____ your ticket? — Not yet.
A. did; find B. have; found C. has; found D. do; findIII. Multiple choice.3. My grandmother ______ a lot of changes in Tianjin
since she came here. (2011天津)
A. sees B. can see C. will see D. has seen
4. My aunt is a writer. She ______ more than ten books
since 1980. (2011北京)
A. writes B. wrote C. has written D. will write 5. — Why won’t you go to the movie with me, Gina?
— Because I ______ it twice. (2011襄阳)
A. see B. have seen C. saw D. will see
6. — China develops so fast.
— That’s true. It ______ a lot already. (2011安徽芜湖)
A. changes B. changed
C. will change D. has changed 7. — I’d like to introduce my best friend to you, Peter.
— Thank you, Lucy. But we ______ already. (2012河南)
A. meet B. met C. will meet D. have met
8. Since 2000, Jingmen has become a new city. Everything
______. (2013湖北荆州) A. is changed?????? ?B. was changed????
?C. had changed????D. has changed 9. Julia isn’t going to the cinema with us
because she ______ the film.
(2013浙江湖州)
A. sees?? ?? B. saw?? ??
C. will see??? ?? D. has seen
10. — Look at these stamps. I _______
them for five years. ??? — Wow, they are wonderful. (2013湖南衡阳) ??
A. kept??????? B. have kept??????????
C. have boughtIV. Put the following sentences into English.1. 你已经制作好生日贺卡了吗？
______ _______ __________ making
the birthday card ______?
2. 我已经吃过早饭了，现在一点也不饿。
I _______ _______ ________ breakfast,
and now I am not hungry at all.
3. — 你这周日准备做什么？— 还没决定。
— What are you going to do this Sunday?
— I _______ ________ ___. have already eatenHave you finishedyet haven’t decided yet 4. — 你读过《哈利·波特》这本书么？
— 是的，我已经读过好多遍了。
— _____ you _____ the book Harry
Porter?
— Yes, I _____ _______ ______ it
several times.
5. 自从1978年以来，他一直住在这儿。
He _____ _____ here since 1978. Have read have already read has livedPreviewTo preview Integrated skills on Pages
15 and 16
To talk about the changes in your life1. Review the Grammar.
2. Finish Part A on Page 14.Homework英语（八年级下册）
Unit 1 Past and present
Grammar
I. Teaching aims and learning objectives
By the end of the lesson, students should be able to:
1. use the present perfect tense to make positive statements;
2. use the present perfect tense to make negative statements;
3. use the present perfect tense to ask and answer questions;
4. form the past participles of regular and irregular verbs.
II. Teaching contents
New words and phrases: yet, recently, past, over the past century
III. Focus of the lesson and predicted area of difficulty
1. To use the present perfect tense correctly.
2. To form the past participles of regular and irregular verbs.
IV. Teaching procedures
Step 1 Lead-in
Free talk
T: What do you know about Mr Chen and Sunshine Town?
【设计意图：通过口头交流，考察学生对Reading板块的掌握程度，同时引出本课时的学习内容。】
Step 2 Presentation
1. Structure of the present perfect tense
sb. + have/has + done
2. When to use the present perfect tense
(1) We use the present perfect tense to talk about an action that started in the past and continues to the present.
(2) We use the present perfect tense to talk about an action that happened in the past and has a connection with the present.
(3) We also use the present perfect tense to talk about how many times an action has happened till now.
3. Matching exercise
T: Here are six sentences in the present perfect tense. Match the reasons for using the tense on the right with the sentences.
4. Work out the rule
(1) Present some positive statements in the present perfect tense and ask students to work out the rule.
He has just gone home.
She has already had a holiday this year.
It has broken!
I have seen my new English teacher.
They have bought a new car.
You have finished the exercise.
We have seen this film before.
◆We use “have + done” with pronouns like _____, _____, _____ and _____.
◆We use “has + done” with pronouns like _____, _____ and _____.
(2) Present some negative statements in the present perfect tense and ask students to work out the rule.
sb. + haven’t/have not + done
hasn’t/has not
(3) Present some Yes/No questions in the present perfect tense and ask students to work out the rule.
Have/Has + sb. + done
(4) Present some Wh- questions in the present perfect tense and ask students to work out the rule.
Wh-words + have/has + sb. + done
4. Time expressions
T: We can use these time expressions with the present perfect tense: already, yet, ever, never, just, recently, since and for.
T: Complete the following passages and sentences with the correct forms of the verbs in the brackets. Pay attention to the time expressions.
5. Pair work
T: Work in pairs and talk about recent activities. Use the conversation on the screen as a model.
6. Competition
T: Form the past participles of the following verbs. Let’s see which team is the fastest.
T: Try to work out the rule of forming the past participles of regular verbs.
Try to remember the past participles of irregular verbs.
【设计意图：让学生直观感知现在完成时，引导学生从感知过渡到理解、归纳和运用，让他们在语境中逐步理解和掌握现在完成时的结构、功能及意义。】
Step 3 Practice
1. Difference between the simple past tense and the present perfect tense
T: Work in pairs and discuss the difference between the simple past tense and the present perfect tense.
T: Let’s try to finish two short passages. Please underline the correct verbs.
2. Finish Part C
3. Pair work
T: Suppose you did some cleaning after school today. Work in pairs and talk about what your classmates have done. Use the sentence pattern like this: What have/has ... done today?
4. Writing
T: Let’s watch a video about changes in Tianjin and then write a report. You should use at least five sentences in the present perfect tense.
【设计意图：通过练习巩固本课所学的语法知识，教师可根据施教学生的实际情况补充不同形式的练习。】
Step 4 Summary
Present a mind map and help students to review the present perfect tense.
【设计意图：通过思维导图帮助学生回顾今天所学的现在完成时的一些要点。】
V. Homework
1. Review the present perfect tense.
2. Remember the past participles of the irregular verbs on Page 13.
