2.本课课程的核心句是Look at that man！He is very fat。Look at that woman！She is very thin。Look at that policeman！He is very tall。Look at that policeman！She is very short.
3.本课的核心语句是Look at that mechanic！He is very dirty。Look at that nurse！She is very clean。Look at that Steven！HE is very hot。Look at that Emma！She is very cold。
4.本课的核心语句是Look at that air hostess！She is very young。Look at that hairdresser！He is very busy。Look at that housewife！She is very lazy。
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