新目标人教版Go for it
八年级下
Have you watched this TV show?
I have watched
Dad,where are we going.
现在完成时
Lead in
现在完成时的构成
现在完成时的主要用法
与一般过去时的用法比较
现在完成时
助动词 （可以帮助构成肯定、疑问和否定句）
现在完成时
Lead in
现在完成时态
I have watched theDad,where are we going.
I have cleaned the classroom.
现在完成时态
Have you taken photos with foreigners?
Yes,I have. I have taken photos with foreigners.
have/taken
Pair work
Have you been to the Great Wall?
No,I haven't.I haven't been to the Great wall.
have/been
have/read
Have you read Little Woman?
No,I haven't.I haven't been to the Great wall.
Happy Sheep and Grey wolf
have/heard of
Boonie Bears
have/watched
Has he/she watched Boonie Bears?
Yes,he/she has.
No,he/she hasn't
注意：has用于第三人称单数
(一)现在完成时表示过去发生的动作或事情对现在造成的影响和产生的结果.它强调的是过去的动作与现在的联系.常用的时间状语有already,yet,ever,never,just, before(key words)等.
二、主要用法1
A: ______ your brother ________ his homework yet? (finish)
B: Yes, he ‘s already done it.
Key words
Has finished
yet
already
注意：already 用于肯定句，
yet 用于疑问句和否定句中
A: _______ you ever _______ to the park? ( be )
B: No, never.
Key words
Have been
yet
already
ever
never
注意： ever 曾经 用于疑问句中
never 从不 带有否定意义
I ______ just ________ the desk, you can take it to your classroom . (mend )
Key words
have mended
yet
ever
never
just
already
Just 刚刚 与现在完成时连用 一般置句中
Just now 刚才 与一般过去时连用
I ______ ________ (be) to the Great wall twice
Key words
have been
yet
ever
never
just
already
twice
twice 两次，用于完成时句尾
He ______ ________ (read) the Journey to the west before
Key words
has read
yet
ever
never
just
already
twice
before
before ...之前，用于完成时句尾。
?
(二)表示一个从过去开始,一直持续到现在,有可能继续下去的动作或状态.通常和for或since引导的时间状语连用.
since 后面接时间点或有一般过去时的句子.
for+一段时间
二、主要用法2
I____ _____ in Ren Yi Middle School since seven years ago. (work )
have worked
=I____ _____ in Ren Yi Middle School for seven years. (work )
have worked
A: How long have you studied in this school?
B: I ____ ______(study)in this school for 7 years.
have studied
=I ____ ______(study)in this school ____7 years___.
have studied
since ago
I have studied English ______I came to this school
since
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 ______ a few years.
6. It’s five years _______ we met last time.
for
since
for
since
for
since
表示过去已经开始，持续到现在的动作或状态，也可以表示一直持续到现在并可能还将持续下去。动词使用延续性动词。表时间段的时间状语连用。常与for或since引导的时间连用so far, up to/till now, in the last/past+一段时间，all one’s life, by now, these days, these days、for two years、since 1984、since he came here
She has learnt English for 3 years。她学英语有三年了
I have lived here since 1990.自从1990年以来我一直住在这儿
1 He has become a doctor.他已经成为一名医生
He has been a doctor for five years.他当医生已经五年了。
2 His grandfather has died.他爷爷已去世了。
His grandfather has been dead for ten years.他爷爷已经去世10年了。
3 The film has begun.电影已经开始了。
The film has been on for five minutes.电影已经开始5分钟了。
1、你来晚了，电影已放了10分钟了。
A: You are late. The film for
10 minutes.
B: You are late. It ten minutes since the
film .
C: You are late. The film 10
minutes .
has been on
is
began/started
began/started
ago
瞬间动词和延续性动词、状态句型转化练习:
2、我叔叔当兵已经有2年了。
A: My uncle ____ ______ ___the army for 2 years.
B: It ____ 2 years _____my uncle joined the army.
C: My uncle __________ the army 2 years ago.
3、Linda 已经感冒4、5天了。
A: Linda __________ a cold _____ 4 to 5 days.
B: It _____4 to 5 days since Linda ________ a cold
C: Linda __________ a cold 4 or 5 days _______ .
has been in
is
since
joined
has had
for
is
caught
caught
ago
4、他爷爷去世已经有5年了。
A: His grandpa ____ ________ _____ for 5 years.
B: It _____ 5 years since his grandpa ______.
C: His grandpa ___________5 years _____ .
5、你来晚了，火车已经开走了20分种了。
A: You’re late. The train ____ ______ ______
for 20 minutes.
B: It ____ 20 minutes since the train ______.
C: The train _____20 minutes ________ .
has been dead
is
died
died
ago
has been away
is
left
left
ago
1.I borrowed the library book two days ago.
I _______ _______the library book________ two days.
2.The meeting started ten minutes ago.
A. The meeting________ _________ _________ _________ten minutes ago.
B. The meeting________ _________ ___________ ________ten minutes.
have kept
for
has been
has been
On since
on for
三 同义句
3.My brother joined the Party last year.
A. My brother _________ _________ ________the Party since last year.
B. My brother__________ ________ _______ party member since last year.
4.He left Nanjing two years ago.
He_________ _________ ________ ________
Nanjing for two years.
has been in
has been a
has been away from
5. That dog died last month.
That dog_____ ______ ______since last month.
6. He has had the bike for two years.
A. Two years_____ _____since he ________the bike.
B. It’s _____ _______since he_______ the bike.
C. He _______the bike two years__________.
has been dead
has passed
bought
two years bought
bought ago
一.现在完成时和一般过去时都是说过去的事情，但现在完成时注意的不是事情本身，而是强调事情与现在保持的某种密切联系（如现在的结果，影响,一直延续到现在等）;而一般过去时，则只讲述发生在过去的动作和事情与现在没有关系。
三、现在完成时和一般过去时用法比较
Enjoy the video
eg：He has bought a car 他已经买了一辆汽车。
He bought a car. 他曾买过一辆汽车。
? 第一句用现在完成时时态，想表达意为：“He bought a car. And he still has it” “过去他买了一辆汽车，现在他还有这辆汽车” 。
?第二句意为：“He bought a car. But we don't know if he still has it” 用过去时只叙述过去他买过一辆汽车这一事实，至于现在他是否有这辆汽车并未强调说明。
二、一般过去时与现在完成时时间的状语不同:
过去时时间状语：yesterday, the day before yesterday,just now， 时间+ ago, last +时间 等;
We______alreddy_________(finish)our task
last week.
eg:We__________(finish)our task last week .
现在完成时时间状语：already, yet, just, ever, never, before，twice，for，since.......
finished
have
finished
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 long _____you______(teach) there?
Have
cleaned
have done
did
do
did
Has
seen
did
see
saw
have
taught
Exercise
4. I_______ (read) the novel twice. It’s interesting.
5.--How do you like the film?
--I ___________(not see) such a moving film before
6. .The Green family_____________(not come) back
yet from the cinema.
They______(go) to see a film one hour ago.
7.Mr Chen ______(give)up smoking last year.
8.Mr Chen __________(give) up smoking since last year
have read
haven’t seen
haven’t come
went
gave
has given
4a Use the words in the brackets to
complete the conversations.
1. A: Would you like something to drink?
B: No, thanks. _______________________.
(just/ drink some tea)
2. A: I heard you lost your key.
____________________? (find)
B: No, not yet.
I have just drunk some tea
Have you found it
3. A: Do you know when Tom is leaving?
B: ________________________. (already/ leave)
A: When ___________________? (leave)
B: This morning.
4. A: Is your sister going to the movies with us tonight?
B: No. __________________________.
(already/ see the film)
He has already left
did he leave
She has already seen the film
5. A: What do your parents think about our plan?
B: I __________________ . (not/ tell them/yet)
haven’t told them yet
4b Fill in the blanks with the correct
forms of the words in the brackets.
Sally ____ (love) reading. In the morning she reads the newspaper and in the evening she reads books. She ___ already ____ (read) more than 100 different books. Her favorite kind of books is science fiction. She is interested in science and technology and loves to imagine what the world ______ (be) like in 50 years.
loves
has
read
will be
She _______ (finish) reading a book about robots last week and _________ (write) a book report about it next week for her French class. Every time she is in the library, Sally looks at the many books she __________ (not read) yet and she can’t wait to read them.
finished
will write
hasn’t read
4c Complete the chart with information about you and your friend.
You Your friend Comments
Books I have already read
Movies I have already seen
Songs I have already heard
谢谢
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中小学教育资源及组卷应用平台
Unit8 Have you read Treasure Island yet?
Grammar Focus -4c导学案
教学重点：
重难点：1..现在完成时::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。
现在完成时的构成：have/has +过去分词
2.动词过去分词的变化规则： ①一般情况下加-ed；②以-e结尾的，加-d；③以辅音字母加y结尾的，变y为i加-ed；④重读闭音节单词，双写辅音字母加-ed。
当堂练习
I.根据句意和首字母提示完成单词。
1. The old man lives alone in an i_______ in the sea.
2. H_______ up, or you’ll be late for class.
3. The workers are making a ship with different t______ in their hand.
4. What language can you say, English or F______?
5. Some animals can live both in the sea and on the l______.
II. 用所给单词的适当形式填空。
6. ______ you ever ______ (travel) by plane?
7. I ______ already ______(be) there twice.
8. He has already ______ (have) lunch.
9. How many songs ______ he ______(learn)so far?
10. I ______ (see) this movie last week.
巩固练习
III.根据汉语完成句子。
11.你已经告诉你父母这条新闻了吗？
______ you ______ your parents the news?
12.你知道他什么时候离开吗？ Do you know ______ he ______ ______?
13.他昨天晚上读完了这本书。 He ______ ______the book last night.
14.我已经读完了10本书了。 I ______ ______ ______ ten books.
15.我已经在这儿呆了15年了。 I _____ _____ _____ for 15 years.
IV.按要求改写句子。
16. Tom has gone to bed. (改一般疑问句) ______ Tom ______ to bed?
17. They have lived there for 3 years.(对划线部分提问)
______ ______ ______ they ______ there?
18. Both of my sisters have already come. (改为否定句)
______ of my sisters ______ come ______.
19. He has already learned about it. (改为否定句)
He ______ learned about it ______.
20. Have they walked back to the park。(作肯定和否定回答)
______, ______ ______ ./______ ,______ ______ ______.
V.单项选择。
21. Miss Lin ______ a lot of work for the poor area since 2010.
A. does B. did C. has done D. will do
22. She has decided ______ about the story.
A. write B. wrote C.to write D. writes
23.They are all ______ in Information Technology.
A. interest B. interesting C. interesting D. interested
24.He ______ the movie many times already.
A. is seeing B. will see C. has seen D. saw
Unit 8 Have you read Treasure Island yet?
Grammar Focus 4a-4c练习答案
当堂练习
I.、1.island 2. Hurry 3.tools 4.French 5.land
II、6.Have traveled 7.have been 8. had 9.has learned 10.saw
巩固练习
III. 11.Have told 12. when left 13. finished read 14.have already read 15.have already stayed
IV.、16. Has gone 17.How long have lived 18.Neither has yet 19. hasn’t yet
20. Yes, they have./No, they haven’t
V、21-24 CCDC
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