Unit 3 Language in use,Module 9 People and places,Language practice,1. Im standing on the Great Wall of China and talking to you. 2. Tony is eating a delicious ice cream. 3. Theyre working. 4. People arent having dinner,Grammar,现在进行时态,1. 定义:表示现在(说话瞬间)正在进行的动作。 He is watching TV now. He is drinking a glass of water,还可以表示当前一段时间内的活动或现阶段 正在进行的动作。 We are working on a farm these days.I am writing a book this year,2. 谓语动词的构成: 助动词be + v-ing,请大家注意观察，其中的be 随着人称、数的变化而变化 (am, is, are三种形式),Im visiting my frie
