1.Listen,point and find"twenty".
听一听，指一指，发现“二十”。
How many children are there in your class?
你们班上有多少人？
There are fifty.
有五十人。
How many boys?
男孩多少人？
There are thirty boys.
男孩三十人。
And how many girls?
女孩多少人？
There are twenty girls.
女孩二十人。
Was it different in your class in England?
与你在英国的班级不同吗？
Yes,it was.
是的。
There were thirty children fifteen boys
我们有三十人，十五个男孩。
and fifteen girls.
和十五个女孩。
So we've got more friends here in China！
这么说在中国我们有更多的朋友！
Ha,ha,ha.
哈哈哈。
2.Listen and say.
听，说。
How many children are there in your class?
你们班上有多少人？
There are fifty.
有五十人。
How many boys?
男孩有多少人？
There are twenty boys.
有二十个男孩。