人教版 英语 七年级下册 I’m watching TV.(Section A Grammar Focus) Unit 6An apple a day keeps the doctor away.He is drinking.What is he doing?What is she doing now?She is riding a bike.结论：当我们描述一个正在发生的动作要用现在进行时。现在进行时：定义：表示现在（说话瞬间）正在进行或发生的动作。例句：You are listening to me now.也表示当前一时间内的活动或现阶正在进行的动作。例句：He is writing a book these days.现在进行时结构：Be动词（is/am/are）+动词-ing即：be+doing现在进行时一、现在进行时肯定句的构成：肯定句：主语+am/is/are+v-ing...例子：I am eating.You/We/They are eating.He/She/It is eating.主语+be动词+动词ingThe horse is running.He is walking to school.The plane is flying.现在进行时否定句的构成：否定句：主语+am/is/are not+v-ing...例子：I am not eating.You/We/They are not eating.He/She/It is not eating. 否定全写 =缩写is not =isn’tam not=’m notare not=aren’tHe is not drinking water.He is drinking some juice.They are taking pictures.They are not watching TV.练习：按要求用正确形式填空：1.John （watch）TV now . (肯定句)2.Look! The students (listen) to the teacher. （否定句）3.I (write)a book this year. （肯定句）4.The boy (draw) a picture now.(否定句)5.Listen.Some girls (sing)in the classroom.(肯定句) 思考：为什么要用现在进行时？标词：now , look |
