现在进行时: 表示正在进行的、发生的动作通常在句子中有以下标志词：now, look！ Listen！句子的结构如下： be am is +动词 ingare如：1. I am listening to the music now. 3. Listen! She is singing .2. The students are drawing pictures now. 4. Look! Mr Li is riding a bike.现在进行时的用法 1现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。2现在进行时的肯定句基本结构为be+动词ing.3现在进行时的否定句在be后加not。4现在进行时的一般疑问句把be动词调到句首。5现在进行时的特殊疑问的基本结构为：疑问词+ be + 主语 + 动词ing? 但疑问词当主语时其结构为 疑问词+ be + 动词ing? 动词加ing的变化规则： 1一般情况下，直接加ing，如：cook-cooking 2以单个元音+单个辅音+不发音的e结尾，去e加ing，如：make-making, 3如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如： run-running, stop-stopping、现在进行时专项练习：一、写出下列动词的现在分词： play_ run_ swim _ make_ stop_go_ like_ write_ ski_sit _ read_ have_sing _ dance_ begin_ put_see_ buy _ love_live_take_ come _ get_ shop_二、用所给的动词的正确形式填空：1.The boy _ ( draw)a picture now.2. Listen ！Some girls _ ( sing)in the classroom .、3. My mother _ ( cook )some nice food now.4. What _ you _( do ) now? The rabbits (jump) now.5. Look ！ They _( have) an English lesson .6.They _(not ,water) the flowers now.7.Look! the girls _(dance )in the classroom .8.What is our granddaughter doing? She _(listen ) to music.9. Its 5 oclock now. We _(have)supper now10._Helen_(wash )clothes? Yes ,she is .1Mr Zheng (read) a book now.2. 3. Look ! Tom and John (swim).4. My brother (make) a kite in his room now.5. Look! The bus (stop).6. We (have) an English class now.7. Listen! Someone is (come).8. They (catch) butterflies now.9. He (do) an experiment now.10. They (collect) stamps now.11. Look! He (dive) now.12. Tom ( watch ) TV in the dining room.13. The doctors (get ) off the bus. 14. Come on. They ( leave ) now.15.It (eat) fish now. 18. The teachers (run) now.、16. My father (work) in the office now.、17. Where is your mother? She (answer) the phone. 三、句型转换： 1. They are doing housework .(分别改成一般疑问句和否定句) _ _ 2My sister is cleaning the classroom . ( 一般疑问句并作肯否定回答) _ _3Im playing the football in the playground .(对划线部分进行提问)_ 4Tom is reading books in his study . (对划线部分提问)