Unit 10I've had this bike for three years. Section A Grammar Focus~4c课件(共23张PPT) 人教版八年级下册

(共23张PPT)
Unit 10
I've had this bike for three years.
Section A (Grammar Focus~4c)
Revision
—What can you give away
—I can give away...
—How long have you had…
—I have had it/them for /since...
Let's talk about the old things you don't use anymore.
能掌握非延续性动词和延续性动词之间的转化。
1
能熟练掌握for 和 since在现在完成时中的用法。
2
分组朗读并观察下列句子。
How long have you had that bike over there I've had it for three years.
How long has his son owned the train and railway set He's owned it since his fourth birthday.
Have you ever played football Yes, I did when I was little, but I haven't played for a while now.
1 组
2 组
3 组
4 组
Divide the whole class into 4 groups and
each group discusses one question.
Group 1：如何用一般现在时的特殊疑问句询问他人拥有某物的时间？
Group 2：现在完成时中for和since后面分别接的是时间点还是时间段
Group 3：句中的have和own是延续性动词还是非延续性动词？
Group 4：一般过去时和现在完成时的区别，其时态标志词是什么？
目标一: 能熟练掌握for 和 since在现在完成时中的用法
讨论时间过后，请第一、二组的同学派代表依次回答下面的问题，并欢迎其他组同学做补充。
Activity 1
Group 1：如何用一般现在时的特殊疑问句询问他人拥有某物的时间？
Group 2：现在完成时中for和since后面分别接的是时间点还是时间段
How long have you had that bike over there I've had it for three years.
How long has his son owned the train and railway set He's owned it since his fourth birthday.
Have you ever played football Yes, I did when I was little, but I haven't played for a while now.
询问他人拥有某物的时间：
How long have/has sb had…
现在完成时
for 和since 的用法
现在完成时表示动作或状态从过去某时开始，一直延续至今，还可能继续下去。since和for 是现在完成时当中常见的标志词。since “自从……”，for“持续了……”。since 用来说明动作的开始时间，for 用来说明动作延续的时间长度。
since + 过去的时间点
e.g. I have been very sad since the last time.
从上次开始，我一直很伤心。
for + 时间段
eg: Tina has been away from home for five years.
蒂娜离开家已经5 年了。
Betty ________ hard since last term. That’s why her exam results are so good!
A. has worked B. will work
C. worked D. was working
A
对since 和for 引导的时间状语进行提问，都可以用how long 来提问。
e.g. —How long have you lived here
你在这里住了多久了？
—I have lived here for about ten years.
我在这里住了大约10 年了。
【注意】
—You have a nice car.
—Thank you. I ______ it for less than one month.
A. bought B. have bought
C. had D. have had
D
4a
Rewrite the sentences using for or since.
1. Jim is in Japan. He arrived there three days ago.
2. They are very hungry. Their last meal was ten hours ago.
3. I have a camera. I bought it in 2009.
They have not eaten for ten hours/since ten hours ago.
Jim has been in Japan for three days.
I have had a camera since 2009.
Activity 2
4. I know Anna. I first met her three years ago.
5. Linda is ill. She became ill on Monday.
I have known Anna for three years/ since three years ago.
Linda has been ill since Monday.
目标二: 能掌握非延续性动词和延续性动词之间的转化
Activity 1
请第三、四组派代表回答下列问题，并欢迎其他组同学做补充。
Group 3：句中的have和own是延续性动词还是非延续性动词？
Group 4：一般过去时和现在完成时的区别，其时态标志词是什么？
How long have you had that bike over there I've had it for three years.
How long has his son owned the train and railway set He's owned it since his fourth birthday.
Have you ever played football Yes, I did when I was little, but I haven't played for a while now.
have 是延续性动词
own 是非延续性动词
延续性动词表示能够延续的动作。非延续性动词表示不能延续的动作，这种动作发生后立即结束。
延续性动词与非延续性动词
若现在完成时的句子中含表示时间段的时间状语(如含since/for引导的时间状语)，则谓语只能使用延续性动词。
【难点】
非延续性动词可以转化为延续性动词
1. 直接换成延续性动词　
buy买→have有　 borrow借→keep保留　
put on穿上→wear穿着 come/go/become 来/去/变成→be 在/是
2. 转换成be＋名词
join the army参军→be a soldier当兵
join the Party 入党→be a Party member成为一名党员
go to school去上学→be a student成为一名学生
3. 转换成be＋形容词/副词
die死亡→be dead死了 finish结束→be over结束
begin开始→be on 在上映/已开始
leave离开→be away远离的
fall asleep入睡→be asleep睡着的
close关闭→be closed关着的
4. 转换成be＋介词短语
go to school去上学→be in school在上学
join the army参军→be in the army在军队中
改错：
1. How long has he borrowed the book
2. The movie has started for one hour.
3. How long has the supermaket opened
4. He has joined the Party for ten years.

How long has he kept the book
The movie has been on for one hour.
How long has the supermarket been open
He has been a member of the Party for ten years.
Activity 2
Practice
一般过去时和现在完成时的区别
一般过去时表示在过去某个时间发生的动作或存在的状态，也表示过去经常或反复发生的动作。
常与yesterday, yesterday afternoon, the day before yesterday, last year, in 1965, a moment ago just now 等表示过去的具体的时间状语连用。
现在完成时表示过去的动作（或状态）对现在产生的影响和结果。常与ever，never，before，twice，already，just，yet，so far，since，for，up to now，in past years等，皆不确定或模糊的时间状语连用。
4b
Fill in the blanks with the correct forms of the verbs in brackets.
1. 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 owned
have always wanted
have never been
go
Activity 3
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.
5. This museum _________ (be) here for over 20 years. It ______ (be) one of the oldest buildings in this small town.
have not been/haven’t been
miss
has been
is
have had
bought
Activity 4
4c
Pair work
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
学习目标
通过本堂课的学习，你学到了什么？
能熟练掌握for 和 since在现在完成时中的用法。
1
能掌握非延续性动词和延续性动词之间的转化。
2