课程内容：
《At the market》
A Learn to say
What are these?
They are carrots.
B Look and learn
a carrot a bean a tomato a potato
C Sing a song
At the market
At the market,we can see,
tomatoes,potatoes,carrots and beans.
Tomatoes,potatoes,carrots and beans.
Tomatoes,potatoes,carrots and beans.
D Play a game
What are these?
They are…
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