Unit10 I've had this bike for three years. SectionA Grammar focus 4a-4c 课件(共18张PPT)

(共18张PPT)
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总结
A: Do you have a(n) _______
B: Yes, I do.
A: How long have you had it
B: I’ve had it for/since…
Grammar Focus
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.
课堂小结
现在完成时用法（二）
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 + 一段时间 + ago”、“since + 过去时的从句”。且for与since引导的时间状语可以相互转换。
since , for 的用法:
since: 自…...以来
1)since+时间点
He has stayed here since 5 o’clock.
2)since+ 时间段+ ago
He has stayed here since 5 hours ago.
3)since+ 从句(句子要用一般过去时态）
She has taught English since he came here.
for: (长达）for+ 时间段
He has kept the book for 2 weeks.
since＋一段时间＋ago＝for＋时间段;
since two weeks ago=for two weeks;
I have kept the library book for a week.
= I have kept the library book since a week ago.
在现在完成时态中，for与since引导的时间
状语可以相互转换。
It is + 时间段 +since +一般过去时的句子.
1.他的爷爷已经去世2年了。
2.Nick参军三年了。
3.他离开深圳好长时间了。
4.这本书我已借了4个月了。
It is 2 years since his grandpa died.
It is 3 years since Nick joined the army.
It is a long time since he left Shenzhen.
It is 4 months since I borrowed the book .
how long VS how soon
How long 多久, 多长(时间)。对时间段提问, 如: for+时间段；since+过去的时间点。
e.g. --How long have you worked in Beijing
--For five years.
How soon多久以后。对“in+时间段提问, 常用于一般将来时”, 其答语常用“in+时间段”。
e.g. --How soon will Jack come back
--In a week.
How often 多久一次, 对频率提问, 其答语为:
once (twice/…)+时间段, always, usually 等。
e.g. --How often do you exercise
--Once a day.
How far 多远，对距离提问，其答语是表距离的内容。
e.g. --How far is it from here to your school
--Three kilometers.
how often VS how far
课堂小结
现在完成时用法（二）
注意：动词使用
延续性动词
常见非延续性动词和延续性动词的转变
第一类：短暂动词 be + adj.
die finish
open/close
fall ill/asleep
marry sb/get married to
第二类：短暂动词 be + 介词.
start/begin
leave
join
be dead
be away from
be in/be a member of
be open/closed
be on
be over
be ill/asleep
be married to
第三类：短暂动词 另一个动词
buy
borrow
become
put on
come
arrive
keep
have
be
wear
be
be
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 haven’t eaten for ten
hours/since ten hours ago.
Jim has been in Japan for three years.
随堂训练
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
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(an) ________ How long have you had it
2.Do you own a(an) ________ How long have you owned it
4b