动词第三人称单数的变化规则及练习
动词第三人称单数的变化规则及练习
一、使用情况：
在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。(标志词usually  often  always  sometimes  never  every等)
二、变化规则
1、直接在动词后+s 
  例如： like- likes          play-plays
2、以s, x, sh, ch, 接尾的动词：+es   
    例如： wash-washes
3、以辅音+o接尾的动词：+es
  例如： go-goes
4、以辅音字母+y接尾的动词：变y为i+es
例如： fly-flies
以元音字母+y接尾的动词后+s
例如：play-plays
5、除上述规律外，还应注意下面三点： 
1) 动词 have ，遇到主语是第三人称单数时，要用 has； 动词 be 的第三人称单数形式是is。
2）含有动词第三人称单数形式的句子变否定句时，要用 doesn't + 动词原形，如：  He goes to school at six in the morning. (变否定句)→ He doesn't go to school at six in the  morning. 
3)对含有动词第三人称单数形式的句子提问时，要用助动词 does
如：  She goes home at five every day. (对划线部分提问)→ When / What time does she go
注意：不规则变化：have-----has，be-------is，do-----does
I 写出下列动词的第三人称单数(-s)和现在分词(-ing)
go                                     
do                                     
play                                     
jump                                     
swim                                     
run                                     
put                                     
sing                                     
dance                                  
come                                     
get                                     
have                                     
fly                                     
study                                  
read                                     
write                                     
look                                     
drink                                     
eat                                     
walk                                  
like                                     
II选择
1.Ben_____a new book.
A. have  B. has      C. haves      D. were
2.Ben and Mary         some books.
A. have  B. has      C. are      D. were
3.I         some stories every day.
A. have  B. has      C. are      D. were
4.I __________ ice cream.
A.like    B.likes    C.liking    D.likees
5. Kitty__    English every day
A.read    B.reades    C.reading  D.reads
6.A man _____in front of his car.
A.walk  B.walks    C.walking    D.work
7.Sam’s bicycle ______a bell.
A.have  B has    C.having    D.is having
8.I     every day
A.swim    B.swims  C.swiming  D.swimes
9.He          his homework every day.
A.does      B.do        C.are    D.is
10. I ________ my homework every day.
A.do      B.is        C.does      D.are
11.They ________ their homework every day.
用什么看日食A. do    B.does    C. is      D.are
11.Lucy_______with her hands.
A.touch    B.touching    C.touches      D.touchs
12.Superdog________the boys
A.see    B.sees      C.seeing      D.ses
13.Supergirl and Superdog______them.
A.saves    B.save    C.saving      D.is saving
14.Jack_______their cow.
A.sells    B.sell      C.selling      D.are selling
15.Jack______up the beanstalk.
A.gets        B.get        C.climb      D.climbs
16.The giant ______boys.
A.eating      B.don’t eat    C.eats      D.eat
17.The goose_______golden eggs.
A.lay      B.lays      C.layed      D.layes
17.The woman_______the beanstalk.
A.cut    B.cutting      C.are cut      D.cuts
18.Her mother ______the beanstalk.
A.take    B.is take    Ctakes    D. taking
19Jack andher mother _____happer
A.does  B.are    C.is    D. have
20.He____the beans in the ground.
A.buy    B.puts        C.put      D.buys
二．填空：
1.She ______(do) homework by herself.
2.Jack ______(go) home by bike.
3.The giant______(climb) up the beanstalk.
4.Her mum ______(run) to the goose.
5.He______(do not)like apple.
6,Sam______(put) it under his arm.
7.The boy_______(chase) it.
8.Kitty______(watch)TV everyday.
9.He______(feed)them at 8:00 in the morning.
10.When ______(do)he get up?
11.Grandma Wang___(live) in Pudong.
12.The girls___(give) the key to Grandpa.
13.That key ______(open) the old box.
14.She ______(say) “I like these puppets”.
15.What_____(do)Alice find?
16.Which toy_____(do) she like?
17.He doesn’t______(know)her name.
18.John can’t_______(find) his watch.
19.Where _____(do)Grandma live?
20.How does he______(go)to the post office?
三、请看下面两组句子，注意区分他们的共同点和不同点。
I go to school every day.
I don't go to school every day.
He goes to school every day.
He doesn't go to school every day.
Do you go to school every day?

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