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Unit 2 What' s that?let's sing !flagtriangleflagstrianglesHow many ... are there ?有多少......?How many ... are there ?There are two/three/four... .There is one.有一个。有两个/三个/四个... 。Homework:1) 找找家里含有三角形的物品,描述给父母听。2)抄写三单元的单词,每个八遍 3)看vcd 三十分钟,读课文。