實義動詞的否定句和疑問句句式變化及動詞的第三人稱變化規(guī)律

1、動詞第三人稱單數(shù)形式構(gòu)成規(guī)則及練習(xí)題動詞第三人稱單數(shù)形式構(gòu)成規(guī)則1、大多數(shù)動詞在詞尾加“S”在清輔音后發(fā)音為s，在濁輔音及元音后發(fā)音為 z。如： stopstops s ; makemakes s   readreads z ; playplays z2、以輔音字母加“y”結(jié)尾的，要先將“y”變?yōu)椤癷”，然后在加“es”讀iz 如：flyflies z； carrycarries z   studystudies z; worryworries3、以“s, x, ch, sh”結(jié)尾的，在詞尾加“es”，發(fā)音為iz 如：   teach

2、teaches iz; watchwatches iz4、以“o”結(jié)尾的動詞，加“es”，讀z 如：   gogoes z dodoes z下面幾個動詞變?yōu)閱螖?shù)時，原詞的元音部分的發(fā)音發(fā)生了較大的變化，請注意記憶。 如： 1、do du:does dz 2、say seisays sez以不發(fā)音字母“e”結(jié)尾的開音節(jié)詞，如果尾音是s，z時，加“s”后字母“e”發(fā)音， 與所加“s”一起讀做iz。 如： closecloses izbe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. 注意： 動詞 h

3、ave ，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。含have和has的肯定句變否定句和疑問句。并做出肯定回答和否定回答I have an apple.I dont have an apple.(否定句在have前加not)Do you have an apple? (疑問句用do提問，句首第一個字母大寫，句尾加問號)Yes, I do./ No, I dont.（用do和dont回答，）He has a big nose.He doesnt have a big nose.(否定句在has前加doesnt ,并把has變成have) Does he ha

4、ve a big nose?(疑問句用does提問，并把has變成have)Yes , he does./ No, he doesnt.(用does和doesnt回答)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(dāng)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。I 什么是一般現(xiàn)在時？一般現(xiàn)在時的基本用法有哪些呢？【No. 1】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(lán)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。標(biāo)志詞（時間狀語）：always,

5、 every week (day, year, month), once a week,every, sometimes, at, on Sunday uauslly often,never,hardly.3.表示客觀現(xiàn)實。如：The earth goes around the sun.地球繞著太陽轉(zhuǎn)?！綨o. 2】一般現(xiàn)在時的構(gòu)成1. be動詞：主語+be(am,is,are)+其它。如：I am a boy.我是一個男孩。2.行為動詞：主語+行為動詞(+其它)。如：We study English.我們學(xué)習(xí)英語。當(dāng)主語為第三人稱單數(shù)(he, she,it)時，要在動詞后加"-s&

6、quot;或"-es"。如：    Mary likes Chinese.瑪麗喜歡漢語?！綨o. 3】一般現(xiàn)在時的變化  1. be動詞的變化。  a 否定句：主語+ be + not +其它.如 He is not a worker.他不是工人。   b 一般疑問句：Be +主語+其它。   如：-Are you a student?   -Yes. I am. / No, I'm not.  c 特殊疑問句：疑問詞+一般疑問句。如Where i

7、s my bike? 2.行為動詞的變化。  a 否定句：主語+ don't( doesn't ) +動詞原形(+其它)。如：   I don't like bread.  b 當(dāng)主語為第三人稱單數(shù)時，要用doesn't構(gòu)成否定句。如：   He doesn't often play.  c 一般疑問句：Do( Does ) +主語+動詞原形+其它。如：   - Do you often play football?   - Yes,

8、I do. / No, I don't.  當(dāng)主語為第三人稱單數(shù)時，要用does構(gòu)成一般疑問句。如：   - Does she go to work by bike?   - Yes, she does. / No, she doesn't.【No. 4】特殊疑問句：疑問詞+一般疑問句。如：      How does your father go to work?II 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)。如： &

9、#160; He likes watching TV. 他喜歡看電視。   he 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)。如：   Han Mei looks like her mother. 韓梅看起來像她的母親。   Beijing is in China. 北京在中國。   Uncle Wang often makes cakes. 王叔叔經(jīng)常做蛋糕。三、單數(shù)可

10、數(shù)名詞或"this / that / the+單數(shù)可數(shù)名詞"作主語時，是第三人稱單數(shù)。如：   A horse is a useful animal. 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 Lucy's. 這只貓是露茜的。四、不定代詞someone,everyone,everything, something等及指示代詞this,that作主語時，是第三人稱單數(shù)。

11、如：   Everyone is here. 大家到齊了。   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)。如：   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(dāng)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&qu

12、ot;是個吉利數(shù)字。"I" is a letter. "I"是個字母。鞏固練習(xí)題：I 寫出下列動詞的第三人稱單數(shù)形式：sit_       guess_      die_ go_       rush_ reach_            

13、; touch_        brush_fly_       copy_              say_        run_ do_       &

14、#160;fix_               live_        cry_enjoy_        have_              w

15、ish_        play_uie_        teach_               buy_         study_ drink_     

16、;  go_                stay_        make_look_        carry_come_        watch_ plant_ 

17、0;       fly_                                 二、用括號內(nèi)動詞的適當(dāng)形式填空。1. He often _(have) dinner at home.2. Danie

18、l 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

19、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. Im staying in bed.16. She _(go) to school from Monday to Friday.17. Liu Tao _(do) not

20、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?  Its Saturday.三、按照要求改寫句子1. Daniel watches TV every evening.(改為否定句)_2. I do my homework every day.(改為一般疑問句，作否定回答)_3. She likes milk.(改為一般疑問句，作肯定回答)_4. Amy li

21、kes playing computer games.(改為一般疑問句，作否定回答)_5. We go to school every morning.(改為否定句)_6. He speaks English very well.(改為否定句)_7. I like taking photos in the park.(對劃線部分提問)_8. John comes from Canada.(對劃線部分提問)_9. She is always a good student.(改為一般疑問句，作否定回答)_10. Simon and Daniel like going skating.(改為否定句)

22、_四、改錯(劃出錯誤的地方，將正確的寫在橫線上)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 dont do her homework on Sundays. _I like apples. Tom is my best friend. He likes apples, too . My mother likes grapes, but my father likes strawberries. 一般現(xiàn)在時中含有實義動詞的句子變否定句和疑問句，并根據(jù)疑問句做出肯定回答和否定回答。1主語是非第三人稱單數(shù)（第一人稱，第二人稱及復(fù)數(shù)人稱）I like apples.I dont like apples.(否定句在實義動詞前面加dont)變否定句練習(xí)題We speak Chinese. They come from Canada. Jane and Sa