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 doingfeel like doing
thank you for doing
do some cooking/cleaning/reading/shopping/washinggo 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ingthink---thinking sleep---sleepingstudy---studying speak---speakingcarry---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---****** come---comingtake---taking le**e---le**ing h**e---h**ing
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)
tr**el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：tr**el---tr**elling.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ingdie---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h**e/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 h**ing many books.（这是错误的句子）
i am h**ing 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。
workvisitplaystudydanceh**etr**eltakedropsing
shopswimlie二．选择题练习。
1. whoover there now?
a. singing b. are sing c.
is singingd. sing2. it’s eight o’clock.
the students __an english h**eb. h**ing c. is h**ingd.
are h**ing3. listen! the baby __in the next crying b.
criedc. is cryingd. cries4.
look! the twins __new sweaters.
a. are wearing b. wearing c.
are weard. is wearing5. don’t talk here.
grandparents __
a. is sleeping b. are sleeping c. sleepingd. sleep
三。填空：1. miss lilike) sleeping in the day.2. listen! whotalk) with your parents
3. the girlnot dance ) on wednesday. she dances on friday.
4. he wantsbe) a teacher.
5. everyonesay) she is a good shop assistant.6. can shesing) in english
7. they likeread) under the tree. look! theysit) there to read.
8. let'seat) lunch together(一起).9. look! a catrun) up the tree.
10. it's 6:30. my brothersee) a movie.
11. samgo) to school at 7:00 every day.
12. peggy isclean) the bedroom now. she is a good girl.13. -wheremr. greenlive)
-- heinlondon.
14youclean) your bedroom---no, i'm not. i'm cleaning the living room.
15nancytalk) on the phone---no, she isn't. sheeat) lunch now.