八下Unit 10 I've had this bike for three years. Section A Grammar-4c(共30张PPT)

(共30张PPT)
Section A Grammar Focus-4c
Unit 10 I’ve had
this bike for three years.
toy dog
toy panda
toy bear
Do you have them at home
How long have you had the …
I have had …for …years./since …years ago.
for+时间段；since+过去的时间点，是现在完成时的标志词。
sweater
dress
scarf
How long have you had the …
I have had …for …years./since …years ago.
lamp
old books
cup
How long have you had the …
I have had …for …years./since …years ago.
magazine
cap
vase
How long have you had the …
I have had …for …years./since …years ago.
1. I have owned the toy bear ____ more than six
years.
2. He has worked as a policeman ____ ten years.
3. They have worked here ______ June.
4. She has studied English ______ she was five.
5. We’ve known each other ______ we were
primary school students.
Fill for or since in the blanks
for
for
since
since
since
Grammar Focus
How long has his son owned the train and railway set
How long have you had that bike over there
I’ve had it for
three years.
Have you ever played football
He’s owned it since his fourth birthday.
Yes, I did when I was little, but I haven’t played for a while now.
for+一段时间
for+一段时间
since+过去的时间点
Present Perfect Tense
现在完成时
表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“for+时间段”、“since+过去时间点”、“since+过去时的从句”、“since+一段时间+ago”。且for与since引导的时间状语可以相互转换。
e.g. My uncle has worked at this factory for
ten years.
= My uncle has worked at this factory
since ten year ago.
I’ve lived here since 1990．
自从1990年以来我就住在这里。
I haven’t seen him for three years.
我三年没有看见他了。
She’s been at this school since five
years ago.
自从五年前她就在这个学校。
含有for，since的现在完成时的用法歌诀: 过去的动作或状态，
一直持续到现在，
for、since 把时间带。
for与since都能与现在完成时连用，但区别较大：
（1）for后须接“时间段”
e.g. He has studied English for five years.
他学英语5年了。
（2）since后须接“时间点”
e.g. He has studied English since 1999.
他从1999年开始学英语。
for 和 since 在现在完成时中的应用
（3）二者可以转换 for + 一段时间
= since + 一段时间 + ago
e.g. He has been here for five weeks.
= He has been here since five weeks ago.
他到这儿已经有五个星期了。
（4）since能引导时间状语从句（主句用现在完
成时，从句用一般过去时），而for则不能。
e.g. He has taught here since he came to China.
自从他来到中国就在这儿教书。
（5）现在完成时常用句型：
①It is (has been) +时间段+ since +时间状语或从句 e.g.
It is four days since last Friday.
从上周五到现在已经四天了。
It has been two years since Jim came to Beijing.
吉姆来北京已经两年了。
②This is the first (second…) time that + 从句
句型中的that从句通常使用现在完成时。
e.g. This is the first time that Jenny and
Danny have been to China.
这是珍妮和丹妮第一次来中国。
This is the third time that I have seen
Karen.
这是我第三次见到凯伦。
（6）均须与延续性动词连用，也可以与非延
续性动词的否定式连用。e.g.
I have had this computer since four years ago.
I haven’t bought anything for two months.
I haven’t heard from him for 3 weeks.
（7）二者引出的时间状语往往用 how
long提问。
e.g.
— How long have you had this book
— For a week./Since a week ago.
— 这本书你买多久了
— 买一周了。
1.转换为相应的延续性动词，用于现在完成时。
borrow — keep buy — have
put on — wear
catch a cold — have a cold
get to know — know
get to sleep — sleep
非延续性动词和延续性动词之间的转换
2. 转化为“be + 形容词/副词/介词/名词”
begin / start — be on
go out — be out
close — be closed
open — be open
get to/arrive/reach — be (in)
die — be dead
leave — be away
finish — be over
fall asleep — be asleep
join — be in/be a member of
become — be
make friends — be friends
come/go/ — be + 相应的介词短语
The old man died 4 years ago.
— The old man has been dead for 4 years.
It is 4 years since the old man died.
— Four years has passed since the old man died.
He joined the Party 2 years ago.
— He has been in the Party for 2 years.
I bought the book 5 days ago.
— I have had the book for 5 days.
e.g.
I.选择for或since填空。
1. I have been here ________ five months ago.
2. He has been a soldier _____ about two months.
3. Great changes have taken place ________ you left.
4. His grandpa has been dead _____ ten years.
5. I have studied English _______ I was 12 years old.
6. It is two years ________ I became a postgraduate student.
since
for
since
for
since
since
Exercises
1. She _______ this book for nearly three weeks.
A. has borrowed B. has lent
C. has bought D. has kept
2. Ten years has passed ____ the CCTV event People Who Moved China took place in 2002.
A. when B. while C. before D. since
II. 单项选择。


1. Jim is in Japan. He arrived there three days ago.
2. They are very hungry. Their last meal was ten hours ago.
4a
Rewrite the sentences using for or since.
Jim has been in Japan for three days.
They are very hungry because they have not eaten anything for ten hours/ since ten hours ago.
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 Anna for three years/since three years ago.
Linda has been ill since Monday.
4b
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.
have had
bought
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.　　
haven’t been
miss
has been
is
4c
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
Group work
Things How long
Tony favorite book for two years
basketball since he was 10 years old
Student 1
Student 2
One student acts as an interviewer to interview others and complete the chart. Then report.