Unit 2 There are twelve boys on the bike. 

第二单元 自行车上有12个男孩

Activity 1 Listen, point and say. 

活动1 听一听，指一指，说一说

There is a boy on the bike. 自行车上有一个男孩。

There are three boys on the bike. 自行车上有三个男孩。

Oh! There are twelve boys on the bike! 喔！自行车上有12个男孩。

Activity 2 Listen and say. 

活动2 听一听，说一说

There is a panda in the photo. 照片里有只熊猫。

It's eating fruit. 它在吃水果。

There are three chickens in the photo. 照片里有三只小鸡。

They're eating rice. 它们在吃米。

There is a bear in the photo. 照片里有只熊。

It's eating sweets. 它在吃糖果。

There are eleven pigs in the photo. 照片里有11头猪。

They're eating fruit and vegetables. 它们在吃水果和蔬菜。

No! There are twelve. 不对！ 有12头（猪）。

Activity 4 Listen and say. Then sing. 

活动4 听一听，说一说，然后唱

Three green parrots 三只绿鹦鹉

There are three green parrots standing in the tree. 树上站着三只绿鹦鹉。

There are three green parrots standing in the tree. 树上站着三只绿鹦鹉。

Now one green parrot accidentally falls. 现在一只绿鹦鹉不小心掉下来了。

There are two green parrots standing in the tree. 树上有两只绿鹦鹉。

There are two green parrots standing in the tree. 树上有两只绿鹦鹉。

Now one green parrot accidentally falls. 现在一只绿鹦鹉不小心掉下来了。

There is one green parrots standing in the tree. 树上还有一只绿鹦鹉。

There is one green parrots standing in the tree. 树上还有一只绿鹦鹉。

Now the green parrot accidentally falls. 现在那只绿鹦鹉不小心掉下来了。

There is no green parrot standing in the tree. 树上没有绿鹦鹉了。