1. 动词have(有)的用法及助动词do和does的用法Do you have a TV? Yes, I do.Does he have a soccer ball? No, he doesn't.I don't have a ping-pong ball.He doesn't have a sports collection.2. 祈使句型Let's ...的使用Let's play soccer.Let's watch TV.3. 描述性形容词的使用That sounds interesting.Volleyball is so difficult.