人教PEP四年级下 第6单元第5节 story

句型：

反义疑问句
This is a new book, isn't it?
这是一本新书，对吗？
Yes, it is.
是的，它是。
No, it isn't.
不，它不是。

20-90 ty
twenty thirty forty fifty sixty seventy eighty ninety
20 30 40 50 60 70 80 90
几十几
thirty-five fifty-nine ninety-one eighty-nine
35 59 91 89

例子：

Zoom, do a good job.
Zoom，好好干！
No problem!
没问题！
Can I help you?
我能为您做点什么？
Yes. Can I see that skirt, please?
是的。我能看看那条短裙吗？
It's pretty, isn't it?
它很漂亮，对吗？
Yes, it's nice.
是的，它很漂亮。
It's cheap, too. Sixteen dollars!
它也很便宜。才十六美元！
No, it isn't.
不，不是。
Then how much is it?
那它是多少钱呢？
It's ninety-one. Sorry, Miss.
它九十一，抱歉小姐。
Zoom, you’re fired!
Zoom，你被解雇了！
But ...
但是……