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动词ing形式的用法及变化规则
一．动词ing形式的用法
1.正在进行时中,谓语动词后加ing. 如:I'm playing football.
2.一些特殊表达..如: be good at doing sth
enjoy doing sth.
be busy doing
feel like doing
thank you for doing
do some cooking/cleaning/reading/shopping/washing
go swimming/fishing/shopping/skating/boating
二．动词现在分词由动词原形在词尾加ing构成，其规则如下：
1）一般情况下直接加ing think---thinking sleep---sleeping
study---studying speak---speaking
carry---carrying say---saying
2）以不发音的字母e结尾的单词，去掉字母e，再加ing
wake---waking make---making come---coming
take---taking leave---leaving have---having
3）以重读闭音节结尾，呈现“辅，元，辅”结构的动词，先双写末尾的辅音字母，再加ing 。初中学过的这类词有：begin，cut, get, hit, run, set, sit, spit, stop, swim, beg, drop, fit, nod, dig, forget, regret, rid, 等。 (visit 不是以重读闭音节结尾，不用双写)
travel虽然重读第一音节，词尾音节不重读，但是现在分词仍要双写末尾辅音字母，然后再加ing ，如：travel---travelling.初中阶段此类词只有这一个。
4）以 y 结尾的动词 直接加 ing
carry—— carrying enjoy—— enjoying
5）以ie结尾的动词，把ie改为y ，再加ing
die---dying lie---lying
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。 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）
一.写出下列动词的现在分词形式
work___________ visit__________ play__________ study__________ dance__________ have__________ travel__________ take__________ drop__________ sing __________ shop__________ swim__________
lie__________
二．选择题练习
1. Who ______________ over there now?
A. singing B. are sing C. is singing D. sing
2. It’s eight o’clock. The students _____ an English class.
A. have B. having C. is having D. are having
3. Listen! The baby _____ in the next room.
A. crying B. cried C. is crying D. cries
4. Look! The twins _____ new sweaters.
A. are wearing B. wearing C. are wear D. is wearing
5. Don’t talk here. Grandparents _____.
A. is sleeping B. are sleeping C. sleeping D. sleep
三. 填空：
1. Miss Li _______ (like) sleeping in the day.
2. Listen! Who ________ (talk) with your parents
3. The girl ________ ( not dance ) on Wednesday. She dances on Friday.
4. He wants ________ (be) a teacher.
5. Everyone _________(say) she is a good shop assistant.
6. Can she _________ (sing) in English
7. They like ________ (read) under the tree. Look! They ________ (sit) there to read.
8. Let's ________ (eat) lunch together(一起).
9. Look! A cat ________ (run) up the tree.
10. It's 6:30. My brother ________ (see) a movie.
11. Sam ________ (go) to school at 7:00 every day.
12. Peggy is ________ (clean) the bedroom now. She is a good girl.
13. --- Where ________ Mr. Green ________ (live)
--- He ________ in London.
14. --- ________ you ________ (clean) your bedroom
--- No, I'm not. I'm cleaning the living room.
15. --- ________ Nancy ________ (talk) on the phone
--- No, she isn't. She ________ (eat) lunch now.
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