现在进行时： 

定义：现在进行时一般表示现在或现阶段正在进行或发生的动作,简称动词ing形式，由be(am/is/are)+动词ing(也叫现在分词)构成谓语，be是助动词，帮助构成时态、语态及语气、否定句和疑问句。

句型结构：

1）  肯定句：主+be+动词ing+……   2）  否定句：主+be+not+动词ing+……3）  一般疑问句：Be+主+动词ing+……？ Yes, 主+be. No, 主+be not.4）  特殊疑问句：特殊疑问词 + 相应be动词 + 主语 + 动词ing ……？eg. What are you doing? 你正在干什么？Who is singing a song? 谁在唱歌呢？Why are they cleaning their room? 他们为什么在打扫房间？

现在进行时特殊疑问句的答语

　　回答特殊疑问时，根据不同的疑问词的情况来决定回答方式。回答what提问时，答语是现在进行时的肯定形式；回答who提问时，只需说明主语是谁，再加相应的be动词即可。

eg. What is he doing? He is writing a letter. 他正在干什么？他正在写信。Who is swimming in the lake? Jim is. 谁正在湖里游泳？吉姆正在游泳。

句型变化见下例：They are reading an English book.(肯) →They are not reading an English book. （否）→Are they reading an English book? （一般） Yes, they are. No,they aren’t.→They are reading an English book. （提问）→What are they doing?

Lisa and Tim are waiting for a bus.(肯)→ Lisa and Tim are not waiting for a bus.（否）→Are Lisa and Tim waiting for a bus? （一般）Yes, they are. No, they aren’t. →Lisa and Tim are waiting for a bus.（提问）→What are Lisa and Tim waiting for? →Lisa and Tim are waiting for a bus.（提问）Who are waiting for a bus?

动词ing（也叫动词现在分词）的变化规则

1. 一般在动词后直接加上-ing。例如：work→working, do→doing, talk→talking,drink→drinking，watch→watching, draw→drawing eat→eating
    2. 以不发音e结尾的动词应先去掉e然后加-ing。例如：write→writing, skate→skating have→having dance→dancing take→taking make→making

3.以ie结尾的动词，变ie为y加-ing。例如：lie→lying, die→dying

4.以重读闭音节结尾的动词，如果该单词末尾只有一个辅音字母，则应先双写该辅音字母，再加-ing。例如：begin→beginning, run→running, swim→swimming, shop→shopping,get→getting,put→putting,forget→frogetting,sit→sitting要双写的动词一般满足下面三个条件：① 单词末尾的字母结构是“辅+元+辅”；② 上述结构中的元音字母发短元音；③ 单词末尾的音节重读。 例如： run→running, begin→beginning

要点综述： 现在进行时的基本用法

1）  表示此时此刻现在进行的动作。与之连用的时间状语有“now”“at the/this moment”（现在、正在），“look （看），listen（听），”：

　　Now, the students are having an English class. 同学们现在上英语课。

　　The teacher is teaching them English at the moment. 老师正在教他们英语。

2）  表示现阶段正在进行的动作，但说话的此刻不一定正在进行。与之连用的时间状语有“these days”（最近/这些天）this week（这个星期）, this month（这个月）：

　　I’m studying English these days. 最近我一直在学英语。

3）  现在always，等副词连用，表示说话人带有赞赏或抱怨感***彩：

　　be always doing sth 总是做……  He is always talking at class. 他上课时总是说话。

要点综述： 现在进行时的使用场合（使用现在进行时的标志词）

1. 当句中出现的表示时间的词是now, at the moment (此刻、现在)，look （看），listen（听），can’t you see(你看不见吗)，it’s +几点钟（现在是几点钟）等时，表示句子要说明的是现在正在发生的事，动词应用现在进行时。

【例如】：①Linda's brother is watching TV in his bedroom now.
琳达的哥哥现在正在他的卧室里看电视。
    ②We're far from home. What are our parents doing at the moment?

③Look! Maria and Tom are dancing under the tree. 看！玛丽亚和汤姆正在树下跳舞。
    ④Listen! Our English teacher is singing the popular English song.
听！我们英语老师正在唱那首流行的英文歌曲。
    ⑤Many children are swimming in the river. Can't you see?许多小孩在河里游泳，你难道看不见吗？

⑥ It’s nine o’clock. We are having classes.现在是九点钟，我们正在上课。

2. 当句中出现的时间状语是these days（这些天）, this week（这个星期）, this month（这个月）等时，如果句子所要表达的意义是在这一阶段正在发生的事，则动词应用现在进行时。

【例如】：①These days we are helping the farmers work on the farm. 这些天我们在农场帮农民们干活。
    ②They're having a test this week. 这一周他们在进行一次考试。
    ③Mr Cheng is visiting our village this month. 这个月程先生在我们村访问。

3. 注意根据上下文的暗示，句子的谓语动词可能应用现在进行时。

【例如】：

①— Where is Mr Wang?　— 王先生在哪儿？
— Oh, he is reading a newspaper in the office.— 噢，他正在办公室看报。
（问句询问王先生在哪儿，应说明他现在在哪儿，故答句应说明他现在正在做的事，用现在进行时。）
    ②Is that boy Jack?　　— 那个男孩是杰克吗？
— No. Jack is doing his homework in the classroom. — 不是，杰克正在教室做作业呢。（答句中说明的杰克做作业的情况应发生在现在，应用现在进行时。）

③Be quiet, my father is listening to the radio.安静，我父亲正在听收音机。（父亲听收音机的情况正在发生，应用现在进行时。）

要特别注意有些动词没有进行时态

　　1、表示状态、思想、感情和感觉的动词，如：see, hear, love, know, want, hope, think等，没有进行时态。

　　2、当have/has作为“拥有”时，没有进行时态，但表示“开会，吃饭，玩得高兴”等意思时，可以用进行时表达。

eg. I am having many books. （这是错误的句子）

I am having a good time. （这才是正确的句子）

练习:

一. 按要求改写句子
1. The boy is playing basketball.否定句：________________    __________   __一般疑问句：_____________________        ____肯定回答：____________________ ____   __否定回答：__________________________对“is playing basketball”提问：______     ______  ____     __________对“The boy”提问：__________________                                   

2. They are singing in the classroom.否定句：___________    _____  ____________一般疑问句：__________________     _______肯定回答：___________________   _______否定回答：________________________对“are singing”提问：_________________            _________
对“in the classroom”提问：____________________                          _    _____
3. she, the window, open, now.(用现在进行时连词成句.)
   ____________________________                ____                       _ _____
4. The birds are singing in the tree.(就划线部分提问)   _______________        _____    

5 The children are playing games near the house.(就划线部分提问)
   _________________________________                  _                      ___
6. She is closing the door now.(改成否定句)   ___________       ___           _  ____ 

7. You are doing your homework.(用“I”作主语改写句子)
   _____________________   _____      ___________                     _
8 they, the tree, sing, now, under.(用现在进行时连词成句.)
   _______________________________         __                 _    ____
9.The Young Pioneers are helping the old woman.(改成一般疑问句)

二、写出下列动词的现在分词形式

1.work________   ___  sing______   ____   play____    ____  study____   ____

2.dance_______   ___  have_____   _____  write____   ______  take____    ____

3.run_______    ___ sit_      ______shop_______ ___swim_____   ____put       

4.lie________ eat          draw               do            read             

三. 单项选择
(   )1. 我在照看孩子。
(A)I am looking after the baby. (B)I'm look aftering the baby.
(C)I look am aftering the baby. (D)I looking after the baby.
(   )2. ______ friend's making ______ a kite.
(A)I, me  (B)My ,my  (C)My, me  (D)His, his
(   )3. Is the woman ______ yellow your teacher?
(A)in  (B)putting on  (C)wearing  (D)having
(   )4. Look!The twins ______ their mother do the housework.
(A)are wanting  (B)help  (C)are helping  (D)are looking
(   )5. ______ are the birds doing? They are singing in a tree. A)Who   (B)What   (C)How   (D)Where
(   )6.  She  _____ something these days? (A)write   (B)writing   (C)is writing   (D)writes
(   )7. 你在干什么?(A)What is you doing? (B)What are you do?(C)What are you doing?(D)What do you do?    (   )8.can’t you see,  she     __. (A)  reading(B) is reading(C) are reading  (D)reads  (   )9. 我正在听他说话.(A)I listening to him.(B)I'm listening to him.   (C)I'm listen to him.(D)I'm listening him.
(   )10. They are ______ their clothes.(A)put on  (B)puting on (C))putting on
(   )11. Listen! She ______ in the classroom.(A)is singing  (B)sing  (C)to sing  (D)is sing
(   )12. At the moment Jim ______ his white shirt and brown trousers.
(A)is putting on  (B)wear  (C)put on  (D)is wearing
(   )13.It’s 7:40. They        .   A sleep  B sleeps  C are sleeping  Dare sleep

(   )14. They______TV in the evening. They aren’t doing their homework.(A)are watching   (B)can't watching  (C)don't watch    (D)don't watching
(   )15. Be quiet.The children _____ _ books. (A) is reading    (B)are reading  (C)read the     (D) are readding   (   )16. They are flying kites. (A)他们喜欢放风筝. (B)他们在放风筝吗?(C)他们在放风筝.   (D)他们常放风筝.    (   ) 17. Look,They are swimming in the river.   I want ______ you.  (A)to go with  (B)go with  (C)helping  (D)help   (   )18.The man ___  __ near the house at the moment.   A work  (B)works  (C)working  (D)is working    (   )19.This week, Lucy is _____ a new bike. (A)jumping  (B)running  (C)riding  (D)takeing   (   )20.Where is Jim? He       .  (A)runing  (B)running  (C)is running  (D)runs      (   )21.Is she Jane? No, Jane       TV.  (A)watching  (B) are watching  (C)is watching  (D) is watching   22 He isn’t writing. He         . A eats B is eatting C is eating D eating
四. 用现在进行时完成下列句子
1. What _________ you __________ (do)? 2. I _________       ____ (sing) an English song.
2. What ________ he ______    ______ (mend)?. He ________        ______ (mend) a car.
3. _____      _ you _______        ___ (fly) a kite? Yes, _______        _
4. ______ she ___________ (sit) in the boat?  5 ______ you _____________ (ask) questions?
6 We _______________ (play) games now. 7  I        (have) a friend. Look, she           (have )an English class. She likes               (have) apples.But now she                ( not have ) apples.

五. 将下列句子变成现在进行时：

（1）Where do you work? I work in a factory.                                                               

 (2)  He studies in a school.                                                        

 (3)  They don’t watch TV every day.                                                        

 (4)  Who read English every morning.                                                 

六. 翻译下列句子：

 （1）我正在写信。                                                              

（2）谁正在洗衣服？他。                                                             

（3）Tom正在踢足球吗？不，没有。                                                            

（4）Sarah现在没有打扫房间。