Unit 1 Past and Present grammar 课件(共23张PPT)

(共23张PPT)
Unit1 Past and present
Grammar
Present perfect tense
现在完成时
How long has Mr. Chen lived in Sunshine Town
2. What has the government done to part of the town center
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
center into a new park.
Because his friends have moved away.
When to use
Past
present
I have studied English for 6 years.
(I started to learn English at the age of 6 and now I'm still learning it.)
We use the present perfect tense to talk about an action that started in the ________ and continues to the _________.
past
present
表示过去开始，现在还在继续的动作。
Past
John has eaten my food.
(John ate up the food, and now I have nothing to eat.)
We use the present perfect tense to talk about an action that happened in the______ and has a connection with the _________.
past
present
关系、影响
表示过去发生的或已完成的动作对现在造成的影响或结果。
present
I have already read this book many times.
I have never watched the film.
We also use the present perfect tense to talk about _______________an action has happened till now.
how many times
谈论动作已经发生的次数。
John has eaten my food. I have studied English for 6 years.
I have already read this book many times. I have lived here since I was born.
I have never watched the film. He hasn't returned the book yet.
肯定式
否定式
一般疑问句
肯定、否定回答
时间状语:
I/You/We/They+have done....
He/She/It has done....
John has not eaten my food yet.
I/You/We/They+have not done....
He/She/It has not done....
Has John eaten my food
Have I/you/we/they+done...
Has he/she/it +done...
Yes, he has. No, he hasn't.
No,I/you/we/they haven't.
he/she /it hasn't.
Yes,I/you/we/they have.
he/she /it has.
already, yet , never, ever, just, for+时间段，since...
肯
否、疑问
曾经
have not=haven't
has not hasn't
ever 表“曾经”,多用于疑问句；
never 表“从未”，多用于表否定。
用所给词的适当形式填空
1. I ________(have) lunch already.
2. Has the train_______ (arrive), yet
3.Tom ____ never_______ (be to ) China.
4. The twin ______just _____(see) my father.
5. The twins ____(see) my father just now.
have had
arrived
has
been to
has
seen
saw
Practice
1 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)
yet
never
since
for
ever
6 They have _____ arrived. (ever, just, yet)
7 He has _______ washed the dishes ( already, ever)
8 We have not completed the project ____ .(already, for, yet)
just
yet
already
选择合适的时间状语填空
Practice
---Has Max finished his homework yet？
2.Max has already finished his homework
(改为一般疑问句并作回答)
1.Nick has forgotten Judy’s name.(改为否定句)
Nick has not forgotten Judy’s name.
---Yes, he has./ No, he hasn’t.
3. I’ve not seen a sheep like that. (改为肯定句)
I’ve seen a sheep like that.
Practice
Learn the rules
规则 示例
过去分词规则变法
大部分+ed
不发音的 e结尾+d
辅音字母＋y，变y为i，+ed
元音字母＋y，+ed
辅元辅，重读闭音节，双写+ed
work—worked
open—opened
live—lived
skate—skated
study—studied
hurry—hurried
play—played
stay—stayed
stop—stopped
plan—planned
prefer—preferred
move
live
love
like
一.写出下列动词的过去式和过去分词:
visit
repair
watch
finish
visited visited
repaired repaired
watched watched
finished finished
moved moved
lived lived
loved loved
liked liked
Practice
stop
mop
trap
plan
stopped stopped
mopped mopped
trapped trapped
planned planned
study
hurry
studied studied
hurried hurried
Practice
be
give
see
make
put
come
write
was/were been
gave given
saw seen
made made
put put
came come
wrote written
注:不规则动词见书上122页不规则动词表.
Practice
过去分词不规则变法
不规则动词
-hurt
-hurt
A-A-A
hurt
A-B-B
A-B-C
A-B-A
-cost
cost
-cost
-lost
lose
-lost
-built
build
-built
-ate
eat
-eaten
-fell
fall
-fallen
-came
come
-come
-ran
run
-run
1 borrow
2 hope
3 make
4 get
5 plan
6 cry
7 send
8 watch
9 say
10 grow
11 hit
12 enjoy
borrowed
hoped
made
got
planned
cried
sent
watched
said
grown
hit
enjoyed
A
Mr Wu wants the students to practice using the presrnt
perfrct tense. Help them write the past participles of the verbs below.
Practice
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 visited
has repaired
haven’t seen
has taught
haven’t come
B
Mr Wu asks the students to complete the sentences below using the presrnt perfrct tense. Help them complete the sentences.
C
Millie and Sandy are talking about a film about the history
of plete their conversation with the correct forms of the verbs in brackets.
Chat time
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
seen
saw
have heard
have learnt
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.
9. We (be) there many times in the past 3 years.
10. I ______________ (finish) my homework yet, because I ______ (clean) the room just now.
has waited
haven’t finished
Have
heard
has been
Have
stayed
watched
have
has
arrived
haven’t eaten
D
have been
用括号中动词的适当形式填空
haven't finished
cleaned
( ) 1. Paul and I ________ tennis yesterday. He did much better than I.
A. play B. will play
C. played D. are playing
( ) 2. Lucy _______ her dog and now she is walking it.
A. will find B. is finding
C. has found D. finds
( ) 3. ---I am here to see Mr. Andrews.
---I’m afraid you can’t see him here any more. He
________.
A. leaves B. left
C. will leave D. has left
( ) 4. I ______ in the hospital yesterday. I had to look
after my sick mother.
A. am B. was
C. are D. were
( ) 5. ---Look! The light is still on in Mr. Zhang’s office.
---I’m afraid he __________ his work yet.
A. doesn’t finish B. didn’t finish
C. hasn’t finished D. won’t finish
Production
Use present perfect tense to make three sentences about your classmates or yourself.
____________________________________________________________________________________________________________________________________________________________________________________________________________________
Thank you!