(共24张PPT)
Unit 8
Have you read Treasure Island yet？
Section A Grammar
Present Perfect Tense
Alice in Wonderland
Lead in
Little Women
Treasure Island
Oliver Twist
Robinson Crusoe
Tom Sawyer
Have you heard of these books
Book Title Name Have they read it What do they think of it
Nick
Judy
Sandy
Alan
Kate
Harry
×
√
√
×
√
×
exciting
wonderful
fantastic
1b Listen and complete the chart.
Treasure Island
Robinson Crusoe
Little Women
师生互动 Interaction
师生互动 Interaction
A: We are reading a book called Treasure Island.
B: How is it I haven’t read it yet.
A: Sandy, have you finished the reader yet
B: No, I have not read it yet.
A: Have you read Little Women yet, Harry？
B: No, I haven’t. Have you, Kate
A: Yes, I have already read it.
Read the tape script and pay attention to the words in red .
Present Perfect Tense 现在完成时
总结：
现在完成时由“助动词have/has + ________”构成。
定义(1):
表示过去发生或已经完成的动作对现在造成的影响或结果。
3.在现在完成时的时态中，句中常有哪些标志词：
already, yet, just , recently, never, before, so far,
1. He has already run out of his money.
2. ---Have you had your lunch yet
--- Yes, I have. I’ve just had it.
3. My sister has bought a new bike recently.
4. I have never seen this movie before.
5. I have been to Beijing three times so far.
师生互动 Interaction
过去分词
结果：现在我不饿了。
结果：他现在没有一分钱。
现在我有辆自行车。
我现在对这部电影一无所知。
到现在为止，我去过3次北京。
已经/还，尚且
刚刚
已经,早已
最近
以前
从未
目前为止
ever(曾，曾经) ,three times(三次)…
A: Wow, the floor is so clean.
B: ___________________.
Can you make sentences
A: Let’s go to the cinema.
B: I’m sorry, I won’t.
Because ___________.
already watched the movie
just swept the floor
Because I have already watched the movie.
I have just swept the floor.
师生互动 Interaction
A: What do you think of this book
B: Fantastic. _______________.
Can you make sentences
A: How do you get to school
B:By bike. Because _______.
read this book three times.
bought a bike recently
I have read this book three times.
I have bought a bike recently.
Pair work
生生互动 Interaction
A: Let’s go to the cinema.
B: I’m sorry, I won’t.
A: Because I have already watched a movie.
B: When did you watch it
A:…
B: what’s it like / what do you think of it
A:…
Feedback 反馈练习
We __________ the film already. (see)
The film is very moving.
I _____________( watch) this film twice.
In fact, I ____ never ____ (see) such an exciting movie before.
My father __________ (read) the novel twice.
I ____ just _____ (drink) some water.
have seen
have watched
has read
have seen
have drunk
drink drank drunk
结构：has / have + pp. (动词的过去分词)
过去分词构成规则：
1. 规则动词的过去分词形式与它的过去式一样。
师生互动 Interaction
work--worked--worked
pass--passed--passed
like--liked--liked
study--studied--studied
cry--cried--cried
stop--stopped--stopped
drop--dropped--dropped
一般在动词原形末尾加-ed
以e 结尾的动词加-d
以辅音字母+y结尾的动词，
先变“y”为“i”再加-ed
末尾只有一个辅音字母的
重读闭音节词， 先双写这
个辅音字母，再加-ed
师生互动 Interaction
2. 不规则动词的过去分词形式请参看附表。P136
read
become
grow
begin
eat
choose
go
bring
teach
get
feel
read
became
grew
began
ate
chose
went
brought
taught
got
felt
read
become
grown
begun
eaten
chosen
gone
brought
taught
got
felt
师生互动 Interaction
现在完成时态
句式结构变化：
我读过这本书。
I have read this book.
I haven’t read this book.
Have you read this book.
Yes, I have. / No, I haven’t.
What have you read
总结
现在完成时的否定句是在________ 后加not，缩略为
haven’t或hasn’t。
2. 其一般疑问句时直接把__________提至句首。
肯定回答为：______________________;
否定回答为：______________________。
have/has
have/has
Yes，主语+have/has
No，主语+haven’t/hasn’t
他吃过了晚饭。
He has had dinner.
He hasn’t had dinner.
Has he had dinner
Yes, he has. / No, he hasn’t.
What has he had
have/has 是助动词
Feedback 反馈练习
1. Lin Feng has left school.(改为否定句)
Lin Feng ______________ school.
2. He has read this book before. (一般疑问句)
________________________________.
3. He planned to pick me up.
However, he _________ (not arrive) yet.
4. Have you brought your photos to school
_____________.
A. Yes, I do. B. Yes, I have.
C. No, I didn’t. D. No, I won’t.
5. He has read this book three times. (对画线提问)
have/has 是助动词
hasn’t left
Has he read this book before
hasn’t arrived
What has he read three times
I have already finished my homework. (变否定句)
I haven’t finished my homework already.
×
易错点1
I have already finished my homework. (变否定句)
I haven’t finished my homework yet.
探究：
I haven’t cleaned the room yet.
Have you seen the film yet Not yet.
We have already got everything ready.
总结
yet 常用在_____________ 。在否定句，译为_____。
在疑问句，译为_______ 。
Not yet 还没
还
已经
否定句和疑问句的句尾
already 常用在_____中，译为________ 。
肯定句
已经
Feedback 反馈练习
1. ____ your father come back from Shanghai
____. He is still there and having a meeting.
Have, Not already B.Have, Not yet
C. Has, Not already D. Has, Not yet
2.They have already left Guangzhou. (改一般疑问句)
_______they______ Guangzhou ______
3. Have you finished doing your homework _______
Yes, I have ________ finished it.
A. yet, yet B. yet, already
C. already, already D. already, yet
Have left yet
Extension 补充说明
现在完成时 一般过去时
用法 表示过去发生的动作对现在造成的影响，侧重于现在的情况 表示过去某个时候发生的动作或存在的状态，与现在无关。
时间状语 already, yet, just, ever, never, before, yesterday, last week, just now, in 2012, two days ago等具体的表示过去的时间状语连用
不和具体时间连用
1. I ______ (join) the book club last month and I _______ (read) five books already.
2. I only ______ (start) taking French classes last week and I _________ (learn) 50 French words already.
3. Tony ________ (buy) a pop music CD yesterday but he ____________ (listen) to it yet.
4. They ___________ (listen) to many songs by The Beatles, but they cannot _____ (sing) any of them.
5. She ____ (see) the newspaper on the table this morning, but she _________ (have) anytime to read it yet.
joined
have read
started
have learned
have listened
sing
saw
hasn’t had
bought
hasn’t listened
Feedback 反馈练习
Self Check 2
易错点
常见副词的用法和句中位置。
just & just now
before & 时间段+ago
ever & never
易错点
I have just seen the movie.
I cleaned the classroom just now.
just “刚刚”，用于现在完成时 , 放在句中，肯定句
just now “刚才”用于一般过去时 ， 放在句尾
I have (never) seen this movie before.
I bought a new bike two days ago.
before “以前”用于现在完成时， 句尾, 肯/否/疑句型均可
时间段+ ago “以前”，指一段时间之前，多用于一般过去时
放在句尾
易错点
-- Have you ever seen the movie
-- No, never.
ever, never常用于对应提问与回答。
ever 常用于疑问句, 句中；
never, 常用于否定句， 句中。
Feedback 反馈练习
1. let’s go to play soccer. I have ____________ finished my homework.
2. Have you read this book ____________
3. I saw it three years _____.
4. Your father _________ (finish) his work just now.
5. Your father _________ just ___________ (finish) his
work.
6. “_________ he ___________ (finish) his homework ”
“Not yet.”
7.____________ you ever ____________ (drink) coke
No, ________ .
yet, already, before, ago, just, just now, ever, never
already / just
yet / before
ago
finished
has finished
Has finished
Have drunk
never
定义（1）：表示过去发生或已经完成的动作对现
在造成的影响或结果。
常见词语： recently, yet, already, just, never,
ever, before, so far, three times
易错点：yet & already
just & just now
before & ago
ever & never
过去分词的形式
句型转换
现在完成时VS一般过去时
现在完成时
课堂小结 1
Feedback 反馈练习
I have already seen the film.
When ____ you _____ it
A. have, seen B. will, see C. did, see D. do, see
2. When did you start your math homework
One hour ago, but I _________ it yet.
A. didn’t finish B. finished
C. have finished D. haven’t finished
3. ____ you ___ to see that exhibition yet
Yes, I _______ it last Sunday.
A. Did, go, saw B. Have, gone, saw
C. Did, go, seen D. Have, gone, went
4. I have found my lost dictionary. I _____ (find) it under the bed.
5. Last term I __________ (learn) many English words. I ___________ 2500 words so far.(learn)
found
learned
have learned
Extension 拓展延伸
情境中的现在完成时
— Why didn’t you go to study with them
— Because I _____ my homework.
A. finished B. to finish
C. will finish D. have finished
2. Jack knows Alice. I ______ her to him.
A. have introduced B. will introduce
C. haven’t introduced D. have finished
