(共31张PPT)
Oxford English
Module 3 Culture and history
Grammar
现在完成时
Unit 5
Educational exchanges
Warming-up
The present perfect tense(现在完成时)
现在完成时The present perfect tense
3.时间状语
2.现在完成时的定义
1.现在完成时的构成
4. 现在完成时与一般过去时
Look and say
I have visited the Great Wall.
I have not seen Tian'an men Square.
He has visited the Summer Palace.
He has never eaten Beijing Duck .
1) I’ve learnt to use chopsticks, and they’re teaching me a little Chinese.
2) It has been a fantastic experience so far.
3) We’ve already learnt a lot about Chinese culture and history.
4) The teachers have introduced us to Chinese
painting as well.
5) We’ve also tried to paint some pictures ourselves.
6) I haven’t had much success yet...
7) I’ve made many new friends.
Look and read
1.现在完成时的基本构成：
have/has + done
助动词
过去分词
Structure (结构 ):
注意：该句式中的have或has是助动词，
has用于第三人称单数，其它人称一律用have。
(1)一般动词，在词尾直接加“ ed ”。
work---worked---worked ,visit---visited---visited
(2)以“ e ”结尾的动词，只在词尾加“ d ”。
live---lived---lived
(3)以“辅音字母 + y ”结尾的动词，将 "y" 变为 "i" ，再加“ ed ”。
study---studied---studied ,cry---cried---cried
(4)重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。
stop---stopped---stopped ,
drop---dropped--dropped
规则动词过去分词
AAA型
原型 过去式 过去分词
cost cost cost
cut cut cut
hit hit hit
hurt hurt hurt
put put put
shut shut shut
let let let
特殊情况 : read read read
read原形发音为/ri:d/,过去式和过去分词发音为/red/
不规则动词过去分词
ABB型
make made made
keep kept kept
build built built
sit sat sat
feel felt felt
fight fought fought
find found found
sell sold sold
lose lost lost
meet met met
AAB型
beat beat beaten
become became become
run ran run
come came come
ABA型
ABC型
begin began begun
break broke broken
drive drove driven
fly flew flown
give gave given
grow grew grown
swim swam swum
sing sang sung
write wrote written
ring rang rung
1. I ________ (have) dinner. I am full.
2. We _________ (read) this story.
3. They _________ (see) the movie.
4. She __________ (buy) some nice toys.
5. I ____________ (finish) my homework
already.
6. We ___________ (wash) our clothes.
They’re clean now.
have had
have read
have seen
has bought
have finished
have washed
用所给单词的正确形式填空。
practice
如：
I haven’t found my lost cat.
我还没有找到我丢失的猫。
She hasn’t finished her homework yet.
她还没有完成她的家庭作业。
Structure (结构 ):
2.现在完成时的否定式
has/have+not+过去分词
have not=haven’t
has not=hasn’t
—Have you been to Dalian
你去过大连吗？
—No, not yet.
不，还没去过。
He has been doing that work since two weeks ago, hasn’t he
他从两周前就开始做那个工作了，对吗？
Structure (结构 ):
3.现在完成时的一般疑问句式
助动词has，have提到句首：
Structure (结构 ):
1. I ____________(wait) for him for two hours . I am very angry .
2. He _________ (be) a doctor since he was twenty .
3. The film __________ (be) on for fifteen minutes .
4. ____ you ever ____ (read) that book before
5. ____ you ever ____ (try) to change her
6. No one ____________ (arrive) here yet .
7. ______ the bus _____ (leave) yet
8. I _____________ (not talk) to him yet .
Haven’t talked
Has left
has arrived
Have tried
Have read
has been
has been
have waited
practice
have met
have played
has cooked
have studied
have seen
haven’t visited
haven’t done
Eric has been in Beijing for a plete his email to his mother with the present perfect tense of the verbs in brackets. (P 72)
A
Exercise
定义：1.表示过去发生或已经完成的某一动作对现在造成的影响或结果。
现在完成时
Someone has broken the door. (窗户现在是坏的)
I have already lost the key. (我现在没有钥匙)
I haven’t read that book yet .(不了解书的内容)
I have just cleaned my hands. (手是干净的)
定义：2.表示从过去一直持续到现在的动作或状态。
She has learned English for 5 years.
He has lived in Beijing since ( 自从)he was born .
Have you stayed here since ( 自从) 3 o’clock
时间状语
现在完成时与不明确的过去时间状语副词
before（以前），just（刚刚），already（已经），yet（已经），ever（曾经），never（从来没有）等连用。
I haven’t seen him before.我以前没有见过他。
They have just done their homework.
他们刚做完作业。
Have you ever been to Beijing
你曾经去过北京吗？
I have never visited the Great Wall.
我从没游览过长城。
Team racing
Two teams have a race. The team that first give a correct sentence get one point.
根据以下图片和文字提示，用现在完成时态补充句子。
Ready
practice
The boy ______________________
already; make a cake
has already made a cake.
___ Tim ____________________
______________
Has ever been to the Palace Museum by bus
Palace Museum, ever be, by bus
the plane, arrive, yet, not
The plane __________________
hasn’t arrived yet.
the Great Wall, never, have been to
Mary ____________________________.
has never been to the Great Wall
Australia, ever, have been to
Have you ____________________
ever been to Australia
The Great Wall; climb; ever
___ she ________________________
Has ever climbed the Great Wall
have (has) been to曾经去过某地（已经返回，人对该地已有（或没有）经历或体验）
have (has) gone to表示人已经去了某地（人不在说话地）
have (has) been in 表示“在某地（多长时间）”（现在仍在那里）
语法辨析
语法辨析
He has been to Japan twice. 他去过日本两次。
—Where is Jim 吉姆在哪儿？
—He has gone to the post office. 他去了邮电所。
Mr. Brown has been in Shanghai for three days. 布朗来上海已经有三天了。
用have / has been to / in, have gone to的各种形式填空.
1 Where is Jack？ He __________ his country.
2 I ________ this school since three years ago.
3 --_____ you ever ____ America ？
-- Yes, I ________ there many times.
4 The Smiths ______ Beijing for several years.
5 David ________ the park just now.
has gone to
have been in
Have been to
have been
have been in
has gone to
B1 Sarah wants to know whether the students from
Beijing have visited any places in London before.
Ask and answer questions in pairs. (P 73)
S1: Has Robin ever seen Big Ben
S2: No, he hasn’t. He’s never seen Big Ben.
S1: Has he ever visited Tower Bridge
S2: Yes, he has. He visited it one year ago.
S1: Has he ever toured around Buckingham
Palace
S2: No, he hasn’t. He’s never toured around
Buckingham Palace.
Role-play
S1: Has George ever seen Big Ben
S2: Yes, he has. He saw it one and a half
years ago.
S1: Has he ever visited Tower Bridge
S2: No, he hasn’t. He’s never visited Tower
Bridge.
S1: Has he ever toured around Buckingham
Palace
S2: No, he hasn’t. He’s never toured around
Buckingham Palace.
B2 Later Sarah is asking the students from Beijing about
what they have and have not done in London.Ask and
answer questions in pairs. (P 73)
S1: Have you done any shopping yet,
George
S2: Yes, I’ve already done some shopping.
S1: Have you seen Big Ben yet
S2: No, I haven’t seen it yet.
S1: Have you done any shopping yet, Robin
S2: Yes, I’ve already done some shopping.
S1: Have you seen Big Ben yet
S2: Yes, I’ve already seen it.
Pairwork
Summary.
1.现在完成时的结构是什么？
2.动词变为过去分词的规则有几条？
3.现在完成时的用法是什么？
4.本节课中我们涉及到了哪些与现在完成时
连用的时间状语及副词.
。
1.To finish the exercises in the exercise book.
2.To remember the irregular past participle of some verbs.
3.To find out some information about the six stories mentioned on Page 57 .
Thank You !Unit5 Educational exchanges
Grammar现在完成时
同步练习
1、写出下列动词的过去分词形式。
1.eat- 2.see-
3.read- 4.keep-
5.have- 6.be-
6.leave- 7.make-
8.go- 9.meet-
e- 11.write-
12.tell- 13.buy-
2、14.find- 15.build-
3、单选
（ ）1. My uncle __in this city since 1980.
A.lives B.have lived C.has lived D.lived
（ ）2. ---Where is Mr. Wang
--- He together with his students _____ Zhuyuwan Park. [2014 扬州]
A. has gone to B. have gone to
C. has been to D. have been to
（ ）3.---______ you ___ your homework yet
---Yes . I _____ it a moment ago .
A.Did ; do ; finished B.Have ; done ; finished
C.Have ; done ; have finished D.will ; do ; finish
（ ）4. I__to Paris several times.
A.went B.have gone C.have been D.was going
（ ）5. He has _______ been to Shanghai , has he
A. already B.never C.ever D.still
（ ）6. Have you ever _____to the Great Wall It’s very beautiful.
A. gone B. been C. went D. go
（ ）7.--- Have you had your breakfast, Nick
--- Yes, I have had it _____.
A. yet B. ever C. never D. already
（ ）8. My parents ______ Shandong for ten years .21教育网
A. have been in B. have been to 21cnjy.com
C. have gone to D. have been
（ ）9.--- How many kinds of languages have you learned 21·cn·jy·com
--- I have learned four different languages ______.2·1·c·n·j·y
A. so long B. so fast C. so far D. so often
（ ）10.--How do you like Beijing, Mr. Black
--Oh, I _____ such a beautiful city before.www.21-cn-jy.com
A . don’t visit B. didn’t visit
C. haven’t visited D. have not visit
三、用所给词的适当形式填空。
1. I ____________(wait) for him for two hours . I am very angry .
2. He _________ (be) a doctor since he was twenty .【来源：21·世纪·教育·网】
3. ____ you ever ____ (read) that book before
4. No one ____________ (arrive) here yet .
5. I _____________ (not talk) to him yet .
6. I____ already ______ (see) the film. I ______ (see) it last week.
7. I ______________ (work) here since I ______ (move) here in 1999.
8. So far I _______________(make) quite a few friends here.21·世纪*教育网
9. How long _______ the Wangs _______(stay) here For two weeks.
10.______ you ______ (find) your science book yet www-2-1-cnjy-com
四、 按要求改写句子。
1.Have you watched the film (作否定回答)
________________________________
2.Simon has decided to go to the meeting. (改为一般疑问句)2-1-c-n-j-y
________________________________
3.She has done her homework. (改否定句)
________________________________
4.She has already told us the news. (改否定句)
________________________________
5.The rain has already stopped. (改一般疑问句)
________________________________
6.I have waited here for two hours. (划线提问)
________________________________
7.She has learned French since 2002. (同义句转换)
She has learned French ______ 2 years.
She has learned French _______ 2 years __________.21世纪教育网版权所有
8.We began to learn English three years ago. (改为同义句)
We _______ _______ English _______three years. 21*cnjy*com
Unit5 Educational exchanges
Grammar现在完成时
同步练习
参考答案
一、1.eaten 2.seen 3.read 4.kept
5.had 6.been 7.left 8.made
9.gone 10.met 11.come 12.written
13.told 14.bought 15.found 16.built
二、1-5 CABCB 6-10 BDACC
三、1.have waited
2.has been
3.Have read
4. has arrived
5.haven’t talked
6.have seen saw
7.have worked moved
8.have made
9.have stayed
10.Have found
四、1.No,I haven’t.
2.Has Simon decided to go to the meeting
3.She hasn’t done her homework.
4.She hasn’t told us the news yet.
5.Has the rain stopped yet
6.How long have you waited here
7.for since ago
8.have learnt for
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