现在进行时
一、概念
表示正在发生的事情或动作，常和now，look，listen连用。如：We are listening to music now. 我们现在正在听音乐。Listen! He is playing the piano. 听！他正在弹钢琴。 二、句子结构
1．be + 动词现在分词（即：动词-ing形式），be + doing 是一个整体，不能分开。 2．be 随着主语的变化而变化，doing的变化规则根据现在分词的变化规律来定。 三、动词现在分词的构成规律
1．一般情况下,在动词原形后直接加-ing；
如：work→working do→doing play→playing 2．以不发音字母e结尾的动词，先去掉e，再加-ing； 如：dance→dancing come→coming
3．在重读闭音节（即：辅音＋元音＋辅音）的动词中，要先双写末尾的辅音字母，再加-ing；
如：get→getting shop→shopping run→running swim→swimming 4．以ie结尾的重读闭音节词，将ie改成y再加ing。 如：lie→lying die→dying
四、现在进行时的各种句式变化
1．否定句
方法：直接在be的后面加not。
如： They are running. →They are not running. 2．一般疑问句
方法：直接把be放在主语的前面，其余位置不变。 如：They are running. →Are they runnin? 3．特殊疑问句
方法：如果就划线部分提问事情或动作时，用What…doing?
如：They are swimming in the sea now. →What are they doing in the sea now?
相关练习题
一、写出下列动词的现在分词。
1. play 2. read 3. see 4. clean 5. study 6. go 7. sing 8. buy 9. say 10. eat
11. fly 12. write 13. dance 14. live 15. come 16. make 17. like 18. have 19. love 20. take
21. run 22. put 23. get 24. sit 25. cut 26. swim 27. stop 28. begin 29. shop 30. lie
二、用所给的动词的正确形式填空。
1. The boy ________ _________ (draw) a picture now. 2．(read) English now. 3．He ______ _______ (go) to the park now.
4. My mother _______ __________ (cook) some nice food now. 5. They ________ 6. We ______ _______(have) supper now.
7. My mother __________ ________ (clean) the room now. 8．What _____ you ______ ( do ) now?
9．Listen! Some girls _______ ________ (sing) in the classroom. 10．Look! They _______ ________ (have) an English lesson. 11．Look! the girls ________ ________ (dance) in the classroom.
12．What is our grandmother doing? She _______ 13．______ Helen __________ (wash)clothes? Yes,she is. 14．We ________ ________ (have) an English class.
15．What ________ they ______ (do) ? They _______ ________ (sit) in the park.
三、选择。
（ ）1. Is your mum cook dinner? Yes,she .
A. is
B. are
C. am
现在进行时
一、概念
表示正在发生的事情或动作，常和now，look，listen连用。如：We are listening to music now. 我们现在正在听音乐。Listen! He is playing the piano. 听！他正在弹钢琴。 二、句子结构
1．be + 动词现在分词（即：动词-ing形式），be + doing 是一个整体，不能分开。 2．be 随着主语的变化而变化，doing的变化规则根据现在分词的变化规律来定。 三、动词现在分词的构成规律
1．一般情况下,在动词原形后直接加-ing；
如：work→working do→doing play→playing 2．以不发音字母e结尾的动词，先去掉e，再加-ing； 如：dance→dancing come→coming
3．在重读闭音节（即：辅音＋元音＋辅音）的动词中，要先双写末尾的辅音字母，再加-ing；
如：get→getting shop→shopping run→running swim→swimming 4．以ie结尾的重读闭音节词，将ie改成y再加ing。 如：lie→lying die→dying
四、现在进行时的各种句式变化
1．否定句
方法：直接在be的后面加not。
如： They are running. →They are not running. 2．一般疑问句
方法：直接把be放在主语的前面，其余位置不变。 如：They are running. →Are they runnin? 3．特殊疑问句
方法：如果就划线部分提问事情或动作时，用What…doing?
如：They are swimming in the sea now. →What are they doing in the sea now?
相关练习题
一、写出下列动词的现在分词。
1. play 2. read 3. see 4. clean 5. study 6. go 7. sing 8. buy 9. say 10. eat
11. fly 12. write 13. dance 14. live 15. come 16. make 17. like 18. have 19. love 20. take
21. run 22. put 23. get 24. sit 25. cut 26. swim 27. stop 28. begin 29. shop 30. lie
二、用所给的动词的正确形式填空。
1. The boy ________ _________ (draw) a picture now. 2．(read) English now. 3．He ______ _______ (go) to the park now.
4. My mother _______ __________ (cook) some nice food now. 5. They ________ 6. We ______ _______(have) supper now.
7. My mother __________ ________ (clean) the room now. 8．What _____ you ______ ( do ) now?
9．Listen! Some girls _______ ________ (sing) in the classroom. 10．Look! They _______ ________ (have) an English lesson. 11．Look! the girls ________ ________ (dance) in the classroom.
12．What is our grandmother doing? She _______ 13．______ Helen __________ (wash)clothes? Yes,she is. 14．We ________ ________ (have) an English class.
15．What ________ they ______ (do) ? They _______ ________ (sit) in the park.
三、选择。
（ ）1. Is your mum cook dinner? Yes,she .
A. is
B. are
C. am