一般现在时中的第三人称单数形式
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。
（一） 什么是一般现在时一般现在时的基本用法有哪些呢？
【一般现在时的功能】
1.表示事物或人物的特征、状态。如：The sky is blue.天空是蓝色的。
标志词（时间状语）： always, every week (day, year, month…), once a week, every…, sometimes, at…, on Sunday uauslly often,never,hardly.......... 2.表示经常性或习惯性的动作。如：I get up at six every day.我每天六点起床。
3.表示客观现实。如：The earth goes around the sun.地球绕着太阳转。
（二）哪些主语是第三人称单数 现归纳总结如下：
一、人称代词he, she, it是第三人称单数。如：
He likes watching TV. 他喜欢看电视。
:
he has lunch at twelve. 她十二点吃午餐。 It looks like a cat. 它看起来像只猫。
二、单个人名、地名或称呼作主语；是第三人称单数。如：
①Han Mei looks like her mother. 韩梅看起来像她的母亲。
②Beijing is in China. 北京在中国。
③Uncle Wang often makes cakes. 王叔叔经常做蛋糕。
三、单数可数名词或\"this / that / the+单数可数名词\"作主语时，是第三人称单数。如：
①A horse is a useful animal. 马是有用的动物。
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②This book is yours. 这本书是你的。 ③That car is red. 那辆小汽车是红色的。 ④The cat is Lucy's. 这只猫是露茜的。
四、不定代词someone, somebody, nobody, everything, something等及指示代词this,
that作主语时，是第三人称单数。如： ①Everyone is here. 大家到齐了。
②There is something wrong with the watch. 这块手表有毛病。 ③This is a pen. 这是一支钢笔。 ④That is an eraser. 那是一块橡皮擦。
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五、不可数名词作主语时为第三人称单数。如：
①The milk is in the glass. 牛奶在玻璃杯里。 ②The bread is very small. 那面包很小。
六、当数字或字母作主语时，看作第三人称单数。如：
①\"6\" is a lucky number. \"6\"是个吉利数字。 ②\"I\" is a letter. \"I\"是个字母。 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.
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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 home every day
（三）含有动词第三人称单数形式的句子变否定句和疑问时怎样变
【注意：】只要句子中出现do, does,don’t,doesn’t, 句子中原来的实意动词要用原形
例如：He likes apples. (改成否定句) He doesn’t likes apples。(错) He doesn’t like apples。(对)
A 否定句：（1）当主语是第一，二或复数时，主语+ don't +动词原形(+其它)。如：
I don't like bread.
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（2） 当主语为第三人称单数时，要用doesn't构成否定句。如： He doesn't often play.
B 一般疑问句：（1）当主语是第一，二或复数时，Do +主语+动词原形+其它。如：
Do you often play football
- Yes, I do. / No, I don't.
(2) 当主语为第三人称单数时，要用does构成一般疑问句。如： - Does she go to work by bike - Yes, she does. / No, she doesn't.
、
C特殊疑问句：疑问词+一般疑问句。如：
How does your father go to work
（四）一般现在时------动词第三人称单数形式构成规则（一般现在时中主语时第三人称
1、大多数动词在词尾加“S”如：
①stop－stops make－makes read－reads 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 carry－carries study－studies worry－worries 3、以“s, x, ch, sh”结尾的，在词尾加“es”，发音为如： teach－teaches watch－watches 4、以“o”结尾的动词，加“es”，如： go－goes do－does
5、以不发音字母“e”结尾的开音节词，加“s” 如： close－closes [iz] 6、特殊：
○. be动词包括：am， is， are。第三人称单数用 is；过去式为 was；复数用are，过去式为were.
○. 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is。
（五）巩固练习题：
一、 写出下列动词的第三人称单数形式：
{
sit-- guess-- die-- go--
rush-- reach-- touch-- brush-- fly-- copy-- say-- run-- do-- fix-- live-- cry-- enjoy-- have-- wish-- play-- Tie-- teach-- buy-- study-- drink-- go-- stay-- make-- look-- carry-- come-- watch-- plant-- fly -- do--
[
二、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
三、改错(划出错误的地方，将正确的写在横线上) 1. Is your brother speak English __________________ 2. Does he likes going fishing __________________ 3. He likes play games after class. __________________ 4. Mr. Wu teachs us English. __________________
5. She don’t do her homework on Sundays. _________________
练习题
练习一、 写出下列动词的第三人称单数
drink____go_____stay____make____look___have____pass____carry____come____ watch_____plant_____fly____study____brush___do____teach____meet______ bring___
]
练习二、将括号里动词的适当形式填入横线上。 1. I ________ in the corridors. (walk) 2. He _________ in the corridors. (run) 3. She ___________ her face once a day. (wash) 4. They ____________ their teeth once a day. (brush) 5. You ___________ up your clothes once a day. (hang) 6. We ____________ our home work once a day. (finish) 7. He ____________ rubbish in the classroom. (throw)
】
8. She _____________ rubbish on the floor. (throw) 9. I _____________ rubbish in the bin. (throw) 10. They ___________ the table once a day. (set) 11. Peter never _________ in the corridors. (run) 12. Mary usually _________ the table. (set)
13. Pat and Ken _________ the plants in the morning. (water) 14. The boy __________ his hair once a day. (comb) 15. Miss Cheng _________ TV at home. (watch)
/
16. My sister __________ his schoolbag once a day. (pack) 17. My mother _________ dinner for me. (cook)
18. My parents _________ the house at Chinese New Year. (clean) 19. My teachers _________ us some gifts. (give) 20. My friends _________ the table with me. (set) 练习三、选择正确的单词填到括号里。
1. What does Candy __________ (wants, want) to be
2. He shouldn’t ___________ (throw, throws) rubbish on the floor.
.
3. Peter ___________ (help, helps) his mother at home. 4. She never _________ (run, runs) in the corridors. 5. We should __________ (walks, walk) in the corridors. 6. He _________ (don’t, doesn’t) get up early.
7. How often __________ (do, does) your father go to bed 8. We _______ (not watch) TV on Monday. 9. Nick _______ (not go) to the zoo on Sunday. ________ (like) the World Cup
、
11. What _______they often _______ (do) on Saturdays parents_______ (read) newspapers every day 13. The girl _______ (teach) us English on Sundays.
14. She and I ________ (take) a walk together every evening. 15. There _______ (be) some water in the bottle. 16. Mike _______ (like) cooking. 17. They _______ (have) the same hobby.
18. My aunt _______ (look) after her baby carefully.
—
19. You always _______ (do) your homework well. 20. I _______ (be) ill. I’m staying in bed.
21. She _______ (go) to school from Monday to Friday. 22. Liu Tao _______ (do) not like PE.
23. The child often _______ (watch) TV in the evening. 24. Su Hai and Su Yang _______ (have) eight lessons this term. 25. He________ TV every evening. (watch) 26. John ________ like his father. (look)
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27. He often ________(have) dinner at home.
练习四、将下列句子改成第三人称He的句型（看例句）
例句：I brush my teeth once a day. ---- 改：He brushes his teeth once a day. 1. I comb my hair twice a day.
______________________________________ 2. They go to school at six in the morning. ______________________________________ 3. You wash your face and put on your clothes.
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_____________________________________ 4. When do you get up
_____________________________________ 5. How often do you hang up your clothes ____________________________________
练习五、 句型转换
1. I go to school by bus. (用He做主语)___________________________________ 2. Kim plays baseball very well. (变一般疑问句)____________________________ 3. She plays sports every day. (变否定句)__________________________________ 4. David doesn’t like French. （变肯定句）________________________________ 5. They like watches. (变否定句)__________________________________
6. Alan doesn’t watch TV in the evening. （变肯定句）_________________________ 7. We have time to do it. (变否定句)__________________________________ 8. John has a car. （改成疑问句）__________________________________ 9. Do you have a pencil (把主语改成she) ______________________ 10. Sonia Hall likes hamburgers. (变成否定)_________________________
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