一般现在时第三人称单数形式用法+练习

1、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。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 su n.地球绕着太阳转。标志词（时间状语）：always, every week （day, year, month ），on

2、ce a week, every , sometimes, at , on Sun day uausllyoften,never,hardlyX）（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。女口：He likes watchi ng TV.他喜欢看电视。She 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。女口： Tom looks like her mother.韩梅看起来像她的母亲。 Beiji ng is in Chi n

3、a.北京在中国。 Un cle 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。 如： A horse is a useful a nimal.马是有用的动物。 This book is yours.这本书是你的。 That car is red. 那辆小汽车是红色的。 The cat is Lucys. 这只猫是露茜的。四、不定代词 some one, somebody, no body, everythi ng, someth ing等及指示代词this, that作主语时，是第三人

4、称单数。女口： Every one is here.大家到齐了。 There is someth ing wrong with the watch.这块手表有毛病。 This is a pen.这是一支钢笔。 That is an eraser.那是一块橡皮擦。五、 不可数名词作主语时为第三人称单数。女口： The milk is in the glass.牛奶在玻璃杯里。 The 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： 6 is a lucky number. 6是个吉利数字。 I is a letter. I 是个字母。PS:

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does nt + 动词原形，如:He goes to school at six in the morning.（变否定句）He does nt 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）Whe n / What time does s

6、he go home every day?（三）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： stop stopsmake makes read reads play plays2、以辅音字母加“ y”结尾的，要先将“ y”变为“ i”，然后在加“ es”；以元音字 母加“ y”结尾的，直接加“ S”女口：fly fliescarry carriesstudy studiesworry worries3、以“ s, x, ch, sh ”结尾的，在词尾加“ es”，发音为如：teach teacheswatch watches4、以“

7、 o ”结尾的动词，加“ es”，如：go goes do does5、以不发音字母“ e”结尾的开音节词，加“ s”女口： close closes iz6、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.（2?）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。（四）巩固练习题：一、写出下列动词的第三人称单数形式：sit-guess-diego-rush-reach-touch-brushfly-copy-say-run-do-fix-live-cry-enjoy-have-wish-

8、play-tie-teach-buy-study-drin k-go-stay-make-look-carry-come-watch-pla nt-fly -do-二、用括号内动词的适当形式填空。1. He ofte n(have) dinner at home.2. Dan iel and Tommy(be) in Class One.3. We(not watch) TV on Mon day.4. Nick(not go) to the zoo on Sun day.5. they(like) the World Cup?6. Whatthey often(do) on Saturday

9、s?7. your pare nts(read) n ewspapers 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) yo

10、ur 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、观察下面两组句子，注意区分I go to school ever

11、y day.He goes to school every day.Do you go to school every day?Does he go to school every day? 注：(1)肯定句变否定句，第三人称单数把I dont go to school every day.He doesnt go to school every day.Yes, I do. (No, I dont)Yes, he does. (No, he doesnt)does 变 doesn t ( does not )，其余把do 和 does,don t 和 doesn t。do 变 don t（ do not ），后面跟动词原形 .（一请一还原）（ 2）变为一般疑问句 ,要在句首加 do 或 does ，这取决于主语是否第三人称单数 课堂练习：把下列句子改成一般疑问句和否定句。1I usually get up at six o clock. （并作肯定回答）2. We usually write e-mail