Unit 10
I’ve had this bike for three years.
Unit 10
Section A
4a-4c
1. My best friend Tom is ____ honest
boy. You can believe him.
A. a B. an C. the D. /
2. —Is Mr. Smith still in Shanghai?
—Yes, he ____ there for two months.
A. has been B. has gone
C. has been to D. has gone to
Exercises
Grammar Focus
for 和 since 在现在完成时中的应用
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”
He has studied English for five years.

（2）since后须接“时间点”
He has studied English since 1999.
（3）二者可以转换
for + 一段时间 = since + 一段时间 + ago
He has been here for five weeks.
= He has been here since five weeks ago.
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．
= I’ve lived here for 24 years.  
I haven’t seen him for three years.
= I haven’t seen him since three years ago.
如：
He has taught here since he came to China.

We have been friends since we met in school.
(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。
（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
It is four days since last Friday.

It has been two years since Jim came to Beijing.
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。
如：
This is the first time that Jenny and Danny have been to China.
这是珍妮和丹妮第一次来屮国。
This is the third time that I have seen Karen.
这是我第三次见到Karen。
（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。
如:
I have bought this computer since four years
ago. (×)
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. (√)
1. 转换为相应的延续性动词，用于现在完成时。
borrow —
buy —
put on —
catch a cold —
get to know —
get to sleep —
非延续性动词和延续性动词之间的转换
keep
have
wear
have a cold
know
sleep
2. 转化为“be + 形容词/副词/介词/名词”
begin / start —
go out —
close —
open —
get to/arrive/reach —
die —
leave —
be on
be out
be closed
be open
be in
be dead
be away
finish —
fall sleep —
join —
become —
make friends —
come/go/ —
be over
be asleep
be in / be a member of
be
be friends
be + prep.
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
√
√
Exercises
4a
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 been hungry for ten
hours/since ten hours ago.
Jim has been in Japan for three years.
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.
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
always want
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
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?
选择for或since填空：
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
即学即练
练习题: 
It's a long time since we ____ (meet) last, isn’t it?            
2. --I know you ___________ (choose) a picture book
among these.  
--Yes, Have a look at it, please.                
3. So far, spaceships without people ___________ (reach)
the moon and some other parts of the universe.               
4. My father____ home for nearly three weeks.A. has gone away from   B. has leftC. has been away from   D. went away                
5. Mr. and Mrs. Green have_____ in China for a week. A. been   B. got   C. arrived   D. reached
met
have chosen
have reached
C
A
Copy and recite the new words and phrases on Pages 73-76.
Finish 4b in your exercise book.
Finish the workbook in Section A 4a-4c.