动词第三人称单数的变化规则

动词第三人称单数的变化规则及发音规律
I、动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。

1、大多数动词在词尾加在清辅音后发音为[s]，在浊辅音及元音后发音为[z]。

如：
①stop－stops [s] ; make－makes [s]
②needs－needds [z] ; play－plays [z]
2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读[iz] 如：
fly－flies [z]；carry－carries [z]
study－studies [z]; worry－worries
3、以“s, x, ch, sh”结尾的，在词尾加“es”，发音为[iz] 如：
teach－teaches [iz]; watch－watches [iz]
4、以“o”结尾的动词，加“es”，读[z] 如：
go－goes [z] do－does [z]
下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。

如：
1、do [du:]－does [dz]
2、say [sei]－says [sez]
II.动词第三人称单数的变化规则及练习
1)写出下列动词的第三人称单数
be_________ spell_______ meet_________ look______ excuse_________ thank_______ do_________ call_________ found________ know________ take________ bring_________ need_______ have________ let_________ play________ sound_________ watch______ like________eat _________ run_________ help__________ want________ come_______ buy_________ afford__________ see_______ go__________
2)用括号内动词的适当形式填空。

1. He often ________(have) dinner at home.
2. Daniel and Tommy _______(be) in Class One.
3. We _______(not watch) TV on Monday.
4. Nick _______(not go) to the zoo on Sunday.
5. ______ they ________(like) the World Cup?
6. What _______they often _______(do) on Saturdays?
7. _______ your parents _______(read) newspapers every day?
8. The girl _______(teach) us English on Sundays.
9. She and I ________(take) a walk together every evening.
10. There ________(be) some water in the bottle.
11. Mike _______(like) cooking.
12. They _______(have) the same hobby.
13. My aunt _______(look) after her baby carefully.
14. You always _______(do) your homework well.
15. I _______(be) ill. I’m staying in bed.
16. She _______(go) to school from Monday to Friday.
17. Liu Tao _______(do) not like PE.
18. The child often _______(watch) TV in the evening.
19. Su Hai and Su Yang _______(have) eight lessons this term.
20.－What day _______(be) it today?－It’s Saturday.
3)按照要求改写句子。

1. Daniel watches TV every evening.(改为否定句)
________________________________________________________________ 2. I do my homework every day.(改为一般疑问句，作否定回答)
________________________________________________________________ 3. She likes milk.(改为一般疑问句，作肯定回答)
________________________________________________________________ 4. Amy likes playing computer games.(改为一般疑问句，作否定回答)
________________________________________________________________ 5. We go to school every morning.(改为否定句)
________________________________________________________________ 6. He speaks English very well.(改为否定句)
________________________________________________________________ 7. I like taking photos in the park.(对划线部分提问)
________________________________________________________________
8. John comes from Canada.(对划线部分提问)
________________________________________________________________ 9. She is always a good student.(改为一般疑问句，作否定回答)
________________________________________________________________ 10. Simon and Daniel like going skating.(改为否定句)
________________________________________________________________名词复数的规则变化与动词第三人称单数变化规则的比较。