THIS， THAT， THESE， THOSE can be used as demonstrative pronouns and demonstrative adjectives. We use THIS and THAT with singular and uncountable nouns and we use THESE and THOSE with plural nouns.当自报家门时，用THIS， 如HI， THIS IS ANDY / THIS IS ANDY SPEAKING。
Unit 7 What's that第7单元 这是什么跟读视频Story timeNew wordsSong timeUnit 7 What’s that?第7单元那是什么？Pages 32-33 Story time32-33页故事时间What's this?这是什么？Shh!
