1.He can sing. 2.You may go now.Can he sing? May you go now?Yes, he can./No, he can’t.Yes, I may./No, I can’t/mustn’t.3.I must go to school by bike.Must you go to school bike??Yes, I must/No, I needn’t. 1. I can draw. 2. There is a bird in the tree. 2. There is a bird in the tree. Can you draw?Is there a bird in the tree?Is there a bird in the tree?Are you a nice girl?小挑战:小挑战:3. You are a nice girl.4. My father is a teacher. Is your father a teacher?思考思考: Look and learn:1.I usually have lunch at twelve.Do you usually have lunch at twelve?2.They play football every day.Do they play football every day?3.He gets up at six every day.Does he get up at six every day?注意:注意:这三个句子都没有be动词和情态动词,像这类句子,要借助do 和 does来帮忙。