Is he dancing? No, he isn’t dancing. He is playing ping-pong.Are they dancing?No, they aren’t. They are singing.What are they doing ?They are having lunch.What is she doing?She is playing the guitar.A few students are playing basketball.What is Miss Hua doing?We are having a lesson.He isn’t dancing.Is she drawing a picture?Yes, she is.No, they aren’t.特殊疑问句:疑问词+be+主语+doing?肯定句式:主语+be+doing+其它.否定句式:主语+be+not +doing+其它.一般疑问句:Be +主语+doing+其它?肯定回答:Yes, 主+Be .否定回答:No, 主+Be+not.Look at the pictures and describe what the students are doing.2:001:591:581:571:561:551:541:531:521:511:5