一般現(xiàn)在時第三人稱單數(shù)形式用法+練習(xí)

1、一般現(xiàn)在時中的第三人稱單數(shù)形式在一般現(xiàn)在時中，當主語是第三人稱單數(shù)時，謂語動詞要用第三人稱單數(shù)形式，即常 在動詞原形后加-s或-es。（一）什么是一般現(xiàn)在時？ 一般現(xiàn)在時的基本用法有哪些呢？【一般現(xiàn)在時的功能】1. 表示事物或人物的特征、狀態(tài)。如：The sky is blue.天空是藍色的。2. 表示經(jīng)常性或習(xí)慣性的動作。如：I get up at six every day.我每天六點起床。3.表示客觀現(xiàn)實。如：The earth goes around the su n.地球繞著太陽轉(zhuǎn)。標志詞（時間狀語）：always, every week （day, year, month ），on

2、ce a week, every , sometimes, at , on Sun day uausllyoften,never,hardlyX）（二）哪些主語是第三人稱單數(shù)？現(xiàn)歸納總結(jié)如下：一、人稱代詞he, she, it是第三人稱單數(shù)。女口：He likes watchi ng TV.他喜歡看電視。She has lunch at twelve.她十二點吃午餐。It looks like a cat.它看起來像只貓。二、 單個人名、地名或稱呼作主語；是第三人稱單數(shù)。女口： Tom looks like her mother.韓梅看起來像她的母親。 Beiji ng is in Chi n

3、a.北京在中國。 Un cle Wang often makes cakes.王叔叔經(jīng)常做蛋糕。三、單數(shù)可數(shù)名詞或this / that / the+ 單數(shù)可數(shù)名詞作主語時，是第三人稱單。 如： A horse is a useful a nimal.馬是有用的動物。 This book is yours.這本書是你的。 That car is red. 那輛小汽車是紅色的。 The cat is Lucys. 這只貓是露茜的。四、不定代詞 some one, somebody, no body, everythi ng, someth ing等及指示代詞this, that作主語時，是第三人

4、稱單數(shù)。女口： Every one is here.大家到齊了。 There is someth ing wrong with the watch.這塊手表有毛病。 This is a pen.這是一支鋼筆。 That is an eraser.那是一塊橡皮擦。五、 不可數(shù)名詞作主語時為第三人稱單數(shù)。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、 當數(shù)字或字母作主語時，看作第三人稱單數(shù)。如： 6 is a lucky number. 6是個吉利數(shù)字。 I is a letter. I 是個字母。PS:

5、除上述規(guī)律外，還應(yīng)注意下面三點：1. 動詞have，遇到主語是第三人稱單數(shù)時，要用has ；動詞be的第三人稱單數(shù) 形式是is。2. 含有動詞第三人稱單數(shù)形式的句子 變否定句時，要用does nt + 動詞原形，如:He goes to school at six in the morning.（變否定句）He does nt go to school at six in the morning.3. 對含有動詞第三人稱單數(shù)形式的句子提問時，要用助動詞does，如：She goes home at five every day.（對劃線部分提問）Whe n / What time does s

6、he go home every day?（三）一般現(xiàn)在時-動詞第三人稱單數(shù)形式構(gòu)成規(guī)則（一般現(xiàn)在時中主語時第三 人稱1、大多數(shù)動詞在詞尾加“ S”如： stop stopsmake makes read reads play plays2、以輔音字母加“ y”結(jié)尾的，要先將“ y”變?yōu)椤?i”，然后在加“ es”；以元音字 母加“ y”結(jié)尾的，直接加“ S”女口：fly fliescarry carriesstudy studiesworry worries3、以“ s, x, ch, sh ”結(jié)尾的，在詞尾加“ es”，發(fā)音為如：teach teacheswatch watches4、以“

7、 o ”結(jié)尾的動詞，加“ es”，如：go goes do does5、以不發(fā)音字母“ e”結(jié)尾的開音節(jié)詞，加“ s”女口： close closes iz6、特殊：be動詞包括：am， is， are。第三人稱單數(shù)用is ;過去式為was ；復(fù)數(shù)用are， 過去式為were.（2?）動詞have，遇到主語是第三人稱單數(shù)時，要用has ；動詞be的第三人稱單數(shù)形式is。（四）鞏固練習(xí)題：一、寫出下列動詞的第三人稱單數(shù)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、用括號內(nèi)動詞的適當形式填空。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、觀察下面兩組句子，注意區(qū)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)肯定句變否定句，第三人稱單數(shù)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 變 doesn t ( does not )，其余把do 和 does,don t 和 doesn t。do 變 don t（ do not ），后面跟動詞原形 .（一請一還原）（ 2）變?yōu)橐话阋蓡柧?,要在句首加 do 或 does ，這取決于主語是否第三人稱單數(shù) 課堂練習(xí)：把下列句子改成一般疑問句和否定句。1I usually get up at six o clock. （并作肯定回答）2. We usually write e-mail