现在进行时讲解

的练习

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的词：now, look, listen.
句子的结构如下： be am
is +动词 ing
are

：be + doing

：be not + doing
疑问句：Be + 主语 + doing？

如：

：1. I am listening to the music now.
2. The students are drawing pictures now.
3. Listen! She is singing .
4. Look! Mr Li is riding a bike.

：1.I am not (I’m not)listening to the music now.
2.The students are not(aren’t) drawing pictures now.
疑问句：
1. Listen! Is Amy singing?
Yes,she is.\No, she isn’t.
2. What are they doing?
They are (They’re) swimming.
其中，动词的ing形式有如下方法：
1. 在动词后直接加ing,如: go-going , wash-washing,fly—flying
2. 以不发音字母e结尾 ， 去掉e再加ing,如 ：drive—driving, ride—riding,skate-skating,make-making,have-having,write-writing,take-taking, dive-diving,dance-dancing,come-coming
3.双写双写末尾字母，再加ing,如：swim- swimming,run—running，get—getting,put-putting,set-setting
练习：
1．Mr Zheng (read) a book now.
2. The rabbits (jump) now.
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. What are they doing?
They (catch) butterflies now.
9. What is he doing ?
He (do) an experiment now.
10. Are they collegting leaves ?
No,they’re not. 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.
16. My father (work) in the office now.
17. Where is your mother?
She (answer) the phone.
18. The teachers (run) now.
由“
be＋及物动词的过去分词”构成。人称、数和时态的变化是通过be的变化表现出来的。现以teach为例说明
在各种时态中的构成。

：am／is／are＋taught

：was／were＋taught

：will／shall be＋taught

：am／is／are being＋taught

：have／has been＋taught

：have／has been＋taught。.***************************************************************************************************************^__^真心祝你健康，如果你对这个答案有什么疑问，请追问，另外如果你觉得我的回答对你有所帮助，请千万别忘记采纳哟！***************************************************************************************************************如果答案对您有帮助，真诚希望您的采纳和好评哦！！O(∩_∩)O