(共14张PPT)
Grammar
Unit 10
I've had this bike for three years.
Review
Amy has had her favorite book for three years.
Jeff has had his bike for 3 years.
Amy has had the toy bear since she was a baby.
Amy’s mom has had the old bread maker for more than 10 years.
I've had this magazine for a couple of months.
I've had these soft toys and board games since I was a child.
He has owned a train and railway set since his fourth birthday.
1)for+一段时间
2)since+ 过去时间点
3)Since +...ago
4)since+ 过去时态句子
常用于现在完成时态
(动词使用延续性动词)
提问用How long
用since和for填空。
1. Nobody lives in those rooms. They have been empty ____ many years.
2. Her uncle has lived in Australia ______30 days.
3. Linda is in her office. She has been there ______ 10 o'clock.
4. The subway is late. They've waited ______ 20 minutes.
5. India has been an independent country ______1974.
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.
Grammar Focus
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.
常见非延续性动词和延续性动词的转变
非延续性性动词转延续性动词的规律
1.用意义相同或相近的延续性动词替代。
borrow→ keep, buy→ have, become →be, put on→ wear,
2、用“be+形容词”替代。如:die→ be dead, open →be open,
get married →be married close →be closed, fall ill →be ill,
fall asleep→ be asleep, become interested in→be interested in
3、用“be+介词或副词”替代。如:
begin/start→ be on, end/finish → be over, leave→ be away, come→ be in/here, go→ be out, get up→ be up
reach/arrive/get to→ stay/be in
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.
_______________________________
4. I know Anna. I first met her three years ago.
___________________________________
5. Linda is ill. She became ill on Monday.
____________________________________
4a Rewrite the sentences using for or since.
Jim has been in Japan for three days.
They are very hungry because they haven’t had their meal for ten hours.
I have had a camera since 2009.
I have known Anna for three years .
Linda has been ill since Monday .
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.
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.
4b Fill in the blanks with the correct forms of the verbs in brackets.
have never been
go
have never owned
always want
have had
bought
haven’t been
miss
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. Complete the sentences using for or since.
1. I haven’t been to a museum__________________________.
2. I haven’t written a letter____________________________.
3. I haven’t ridden a bike ______________________________.
4. I haven’t seen a movie ______________________________.
5. I haven’t played computer games ______________________.
Self check
for two years/since two years ago
since last year
for five years
for a long time
for one year
since I was in junior high school.
A: Hey Eric, _____ you enjoyed your time in Beijing so far
B: Yes, it ____ been great! Everyone is so friendly.
A: How long _____ you been in China now
B: Oh, I __________ here ___ about two years now.
A: Wow, that means you haven’t ______ back to the US for two years
B: No, I ____ been back twice _____ moving to China.
_____ you been to the US before, Li Juan
A: Yes, I went there once when I _____ 10 years old, but I _____ not been back _____ then.
have
has
have
have been
for
2. Complete the conversation.
been
have
after
Have
was
have
since
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。
1. I have ____ this nice watch for two years.
A. had B. bought
C. borrowed D. lend
2. He ____ his home for ten years
A. has left B. left from
C. has been away from
D. was away from
3. He hasn't ____ Quanzhou ever since he
left school.
A. left B. been away
C. been D. away
A
C
B