剑桥少儿英语二级上unit-12.pptx

文档介绍：剑桥少儿英语二级上Unit-12
第一页，共136页。
Unit 12
Has your school got
a swimming pool ?
第二页，共136页。
Has your school got ant perfect 句型
现在完成时的肯定句式是
“have（has）＋过去分词”。
注意：
该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。

第十二页，共136页。
Lily 和她妹妹已经去了公园了。
Lily and her sister have gone to the park.
我们的父母已经工作了两天了。
Our parents have worked for two hours.
他们已经打扫了屋子。
They have cleaned the house.
我们已经买了这些书了。
We have bought the books.
第十三页，共136页。
否定句：
现在完成时 Present perfect 句型
have not (haven’t) +过去分词
has not (hasn’t) +过去分词
I have not (haven’t) seen the film.
She has not (hasn’t) seen the film.
I haven’t eaten supper. eat-eaten
He hasn’t changed his idea. change-changed
My mother hasn’t come back home. come-come
第十四页，共136页。
seen a tiger
Have you ever seen a tiger?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第十五页，共136页。
flown a kite
Have you ever flown a kite?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第十六页，共136页。
swum in a river
Have you ever swum in a rver?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第十七页，共136页。
had a dog
Have you ever had a dog?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第十八页，共136页。
caught a mouse
Have you ever caught a mouse?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第十九页，共136页。
eaten English food
Have you ever eaten English food?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第二十页，共136页。
bought a bike
Have you ever bought a bike?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第二十一页，共136页。
ridden a horse
Have you ever ridden a horse?
Yes, I have.
No, I haven't.
I have .
I haven’t .
第二十二页，共136页。
been