人教版八年级下册Unit10I've had this bike for three years. Section A 3课件(共28张PPT)

(共28张PPT)
2022-2023学年人教版八年级英语下册教学课件U10
To learn the present perfect tense with for and since.
To be able to use the present perfect tense with for and since properly.
at first 起初；起先
grow up 长大；成熟；成长
as for 至于；关于
junior high school 初级中学
part with 放弃、交出(尤指不舍得的东西)
to be honest 说实在的
check out 察看；观察
clear out 清理；丢掉
完成句子。
1. 那边那辆自行车你买了多久了？
__________ have you had that bike over there
2. 我已经买了三年了。
I’ve had it ______________.
How long
for three years
3. 他的儿子拥有火车和轨道多久了？_________________________ the train and railway set
How long has his son owned
4. 他从四岁生日时就有了。
He’s owned it _________________________.
5. ——你踢过足球吗？
——踢过，小时候踢过。但是现在已经有好一阵没踢过了。
—______________ ever played football
—Yes, I did when I was little, but I ___________________ for a while now.
Have you
haven’t played
since his fourth birthday
现在完成时的用法
现在完成时还可表示过去某一时间开始并一直持续到现在(包括“现在”在内)的动作或状态，该用法中的动词多是延续性动词，常见的时态标志词有since, for等。
现在完成时
1. since prep. & conj. 自从……以来
介词时, 后接表示过去的时间点, 表示某事开始的时间； 连词时, 引导时间状语从句, 从句常用一般过去时。如：
We have been here since last Sunday / two years ago.
Mr. Jones has worked here since he was twenty-five.
2. for prep. 后接一段时间，表示一个动作或一种状态已经持续了多长时间。如：
I have studied here for three years.
She has been away for five days.
【注意】
1) 对since和 for引导的时间状语提问时, 常用how long。如：
Jane has learned to play the piano since two years ago.
How long has Jane learned to play the piano
2) 在现在完成时中，含有for和since的句子可以相互转换。如：
They have lived here for five years.
=They have lived here since five years ago.
3) 在现在完成时中，表示短暂意义的动词(如come和see)在肯定句和一般疑问句中不能和表示一段时间的时间状语连用，但在否定句中是可以的。如：
They haven’t seen each other for ages.
短暂性(短语)动词与延续性(短语)动词和与表示状态的短语之间的转化
1. 有些短暂性(短语)动词可转化为相应的延续性(短语)动词。
become → be borrow → keep
buy → have / own catch a cold → have a cold
come → stay put on → wear
go to sleep → sleep move to → live in
2. 有些短暂性(短语)动词可转化为表示状态的短语。常见的有：
leave → be away begin / start → be on
die → be dead finish → be over
join → be in / be a member of
fall asleep → be asleep marry → be married
come / arrive here → be here
Rewrite the sentences using for or since.
Jim is in Japan. He arrived there three days ago.
2. They are very hungry. Their last meal was ten hours ago.
They have not eaten for ten hours.
Jim has been in Japan for three days.
Although their last meal was ten hours ago, it isn’t logical that they got hungry immediately after they had their last meal. So the answer “They have been very hungry for ten hours.” is not accepted.
3. I have a camera. I bought it in 2009.
4. I know Anna. I first met her three years ago.
5. Linda is ill. She became ill on Monday.
I have had a camera since 2009.
I have known Ann for three years/since three years ago.
Linda has been ill since Monday.
Fill in the blanks with the correct forms of the verbs in brackets.
I _______________ (never be) to the water park before. I want to _______ (go) next month before the weather gets too cold.
2. They _________________ (never own) any pets, but they ____________________ (always want) to have a dog.
have never been
go
have never owned
have always wanted
3. We _________ (have) a piano since last November. We __________ (buy) it from the Li family when they moved to the US last year.
4. Cathy and Amy ____________ (not be) back to their hometown for two years. They __________ (miss) their hometown a lot and hope to visit the place next year.
have had
bought
haven’t been
miss
5. This museum ___________ (be) here for over 20 years. It _____ (be) one of the oldest buildings in this small town.　　
has been
is
Fill in the questions and ask two students. Then complete the chart.
1. Do you have a(n) _______ How long have you had it
2. Do you own a(n) _______ How long have you owned it
Things How long
Tony favorite book for two years
basketball since he was 10 years old
Student 1
Student 2
1. —It’s 20 years since we came back to Liangshan.
—How time flies! We _____ in our hometown for such a long time. (2020四川凉山)
A. work B. worked
C. has worked D. have worked
D
2. Since 1989, Project Hope ________ millions of young people from poor families achieve their dreams of going to school.
(2020云南)
A. will help B. helps
C. has helped D. is helping
3. Some primary and secondary schools _______ winter sports to their courses since Beijing won the right to host the 2022 Winter Olympic Games. (2020江苏泰州)
A. added B. will add
C. have added D. were adding
C
C
4. It has been two months since my father ________ for Italy.
(2020黑龙江龙东)
A. was left B. left C. leaves
5. — Hi, Jill. I _______ in my math since you shared your good experience with me.
— Great! Congratulations! (2020黑龙江哈尔滨)
A. have made rapid progress
B. made rapid progress
C. will make rapid progress
B
A
6. Bob, you _____ in this city since 2018. How do you like it
(2020四川成都)
A. lived B. live C. have lived
7. I ______ the guitar ever since I was 8 years old.
(2020甘肃武威)
A. played B. have played
C. am playing D. will play
C
B
8. —What do you usually do in your spare time
—I often go to our community library. It _____ for two years in order to encourage us to read more. (2020湖北鄂州)
A. opens B. has opened
C. has been opened D. has been open
D
open是非延续性动词，此处用形容词形式be open表示状态，可以延续。
9. Mr Jiang ____ the company to develop the 5G network for years. Now he works as the chief engineer in it.
(2020江苏南通)
A. joined B. was a member of
C. has joined D. has been a member of
10. —The new shirt looks good on you. When did you buy it
—On July 7th. I _____ it for a week. (2020四川遂宁)
A. have bought B. have had
C. bought D. buy
D
B
1. 现在完成时中询问时间长短可用疑问词how long。
2. 介词for后接一段时间，指某个动作或情况到现在为止已持续了多久。
3. since有两种用法，分别是：
① 作为介词，接一个时间名词；
② 作为连词，引导一个时间状语从句。
since指某个动作或情况从过去某一点时间一直持续到现在。
Ⅰ. 根据上句完成下句，使两句意思相同或相近，每空一词。
1. My brother has lived in Shanghai for two years.
My brother _______ _______ in Shanghai _______ two years ago.
2. Mr. Lin and Mrs. Wang have worked in the school since ten years ago.
Mr. Lin and Mrs. Wang _______ _______ in the school _______ ten years.
has lived since
have worked
for
3. Polly became a teacher last year.
Polly _______ _______ a teacher _______ one year.
4. The library closed ten minutes ago.
The library _______ _______ _______ _______ ten minutes.
5. My grandmother died five years ago.
My grandmother _______ _______ _______ _______ five years.
has been for
has been closed for
has been dead for
II. 根据短文内容，用括号内所给动词的正确时态填空，使短文完整、通顺。
Steven loves almost everything about his grandma, but there is only one thing he (1)_______(hate). She always knits (编织) sweaters for him. She (2)__________(make) over one hundred sweaters for him since he (3)_______(be) a baby. Steven understands that she does it because she loves him. However, all the sweaters aren’t beautiful. Steven visits her once a month. She has a new sweater for him each time. Steven (4)_______ (live) in a small apartment.
was
hates
has made
lives
He (5)_________(keep) so many of her sweaters over the years that there isn’t enough room for his other clothes. He had to give all of them away last week. “Grandma won’t find out it,” he (6)________(think). However, Steven’s grandma (7)_______ (visit) him without telling him yesterday. She (8)_______(ask) to see his sweaters. “Sorry, I (9)_______________(give) all of them away because the children in poor areas needed them a lot,” Steven said. Grandma (10)_______(feel) happy. She promised she would make him two more by the next month.
visited
has kept
thought
asked
gave / have given
felt
Make four sentences using the present perfect tense with for and since.
2. Preview Section B.