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動(dòng)詞第三人稱單數(shù)形式構(gòu)成規(guī)則及練習(xí)題 動(dòng)詞第三人稱單數(shù)形式構(gòu)成規(guī)則 動(dòng)詞原形變第三人稱單數(shù)的規(guī)則與發(fā)音規(guī)律同名詞單數(shù)變復(fù)數(shù)大致相同，請(qǐng)認(rèn)真觀察。 1、大多數(shù)動(dòng)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：①make－makes [s]② play－plays [z] 2、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：fly－flies [z]； carry－carries [z] 3、以“s, x, ch, sh”結(jié)尾的，在詞尾加“es”，發(fā)音為[iz] 如： teach－teaches [iz]; watch－watches [iz] 4、以“o”結(jié)尾的動(dòng)詞，加“es”，讀[z] 如：go－goes [z] do－does [z 下面幾個(gè)動(dòng)詞變?yōu)閱螖?shù)時(shí)，原詞的元音部分的發(fā)音發(fā)生了較大的變化，請(qǐng)注意記憶。 如：1、do [du:]－does [dz]2、say [sei]－says [sez]一起讀做[iz]。 如： close－closes [iz] be動(dòng)詞包括：am， is， are。第三人稱單數(shù)用 is；復(fù)數(shù)用are， 除上述規(guī)律外，還應(yīng)注意下面三點(diǎn)： 1. 動(dòng)詞 have ，遇到主語是第三人稱單數(shù)時(shí)，要用 has； 動(dòng)詞 be 的第三人稱單數(shù)形式是is。 2. 含有動(dòng)詞第三人稱單數(shù)形式的句子變否定句時(shí)，要用 doesnt + 動(dòng)詞原形，如： He goes to school at six in the morning. (變否定句)→ He doesnt go to school at six in the morning. 3. 對(duì)含有動(dòng)詞第三人稱單數(shù)形式的句子提問時(shí)，要用助動(dòng)詞 does，如： She goes home at five every day. (對(duì)劃線部分提問)→ When / What time does she go home every day? 一般現(xiàn)在時(shí)中的第三人稱單數(shù)形式 在一般現(xiàn)在時(shí)中，當(dāng)主語是第三人稱單數(shù)時(shí)，謂語動(dòng)詞要用第三人稱單數(shù)形式，即常在動(dòng)詞原形后加-s或-es。 I 什么是一般現(xiàn)在時(shí)？一般現(xiàn)在時(shí)的基本用法有哪些呢？ 【No. 1】一般現(xiàn)在時(shí)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(dòng)作。如：I get up at six every day.我每天六點(diǎn)起床。 標(biāo)志詞（時(shí)間狀語）：always, every week (day, year, month…), once a week, every …, sometimes, at…, on Sunday often, never,hardly .......... 　　3.表示客觀現(xiàn)實(shí)。如：The earth goes around the sun.地球繞著太陽轉(zhuǎn)。 【No. 2】一般現(xiàn)在時(shí)的構(gòu)成 　　1. be動(dòng)詞：主語+be(am,is,are)+其它。如： 　　I am a boy.我是一個(gè)男孩。 　　2.行為動(dòng)詞：主語+行為動(dòng)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(shí)，要在動(dòng)詞后加"-s"或"-es"。如：Mary likes Chinese.瑪麗喜歡漢語。 【No. 3】一般現(xiàn)在時(shí)的變化 　 1. be動(dòng)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, Im not. 　　 c 特殊疑問句：疑問詞+一般疑問句。如：Where is my bike? 　 2.行為動(dòng)詞的變化。 　　 a 否定句：主語+ dont( doesnt ) +動(dòng)詞原形(+其它)。如： 　 　I dont like bread. 　 　b 當(dāng)主語為第三人稱單數(shù)時(shí)，要用doesnt構(gòu)成否定句。如： 　　 He doesnt often play. 　　 c 一般疑問句：Do( Does ) +主語+動(dòng)詞原形+其它。如： 　　- Do you often play football? 　　 - Yes, I do. / No, I dont. 　 　當(dāng)主語為第三人稱單數(shù)時(shí)，要用does構(gòu)成一般疑問句。如： 　 　- Does she go to work by bike? 　　 - Yes, she does. / No, she doesnt. 【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： He likes watching TV. 他喜歡看電視。 he has lunch at twelve. 她十二點(diǎn)吃午餐。 It looks like a cat. 它看起來像只貓。 二、單個(gè)人名、地名或稱呼作主語；是第三人稱單數(shù)。如： ①Han Mei looks like her mother. 韓梅看起來像她的母親。 ②Beijing is in China. 北京在中國(guó)。 ③Uncle 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(shí)，是第三人稱單數(shù)。如： ①A horse is a useful animal. 馬是有用的動(dòng)物。 ②This book is yours. 這本書是你的。 ③That car is red. 那輛小汽車是紅色的。 ④The cat is Lucys. 這只貓是露茜的。 四、不定代詞someone, somebody, nobody, everything, something等及指示代詞this, that作主語時(shí)，是第三人稱單數(shù)。如： ①Everyone is here. 大家到齊了。 ②There is something wrong with the watch. 這塊手表有毛病。 ③This is a pen. 這是一支鋼筆。 ④That is an eraser. 那是一塊橡皮擦。 五、不可數(shù)名詞作主語時(shí)為第三人稱單數(shù)。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、當(dāng)數(shù)字或字母作主語時(shí)，看作第三人稱單數(shù)。如： ①"6" is a lucky number. "6"是個(gè)吉利數(shù)字。 ②"I" is a letter. "I"是個(gè)字母。 鞏固練習(xí)題： I 寫出下列動(dòng)詞的第三人稱單數(shù)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、用括號(hào)內(nèi)動(dòng)詞的適當(dāng)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、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 likes 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(duì)劃線部分提問) ________________________________________________________ 8. John comes from Canada.(對(duì)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) ___________________________________________________ 11.Jim does his homework every day. (改為否定句) ___________________________________________________ 四、改錯(cuò)(劃出錯(cuò)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 don’t do her homework on Sundays. _________________ II選擇 1. Ben _____a new book. A. have B. has C. haves D .were 2. Ben and Mary  some books. A. have B. has C. are D .were 3. I  some stories every day. A. have B .has C .are D .were 4. I __________ ice cream. A .like B.likes C. liking D.likees 5.I every day A.swim B.swims C.swiming D.swimes 6.He his homework every day. A.does B.do C.are D.is 7. I ________ my homework every day. A.do B.is C.does D.are 8.They ________ their homework every day. A. do B.does C. is D.are 9.My English teacher always ________ to us. A.smelling B.smells C.smell D.is smell 10.Lucy_______with her hands. A.touch B .touching C .touches D.touchs 11.Superdog________the boys A.see B.sees C.seeing D.ses 12.Supergirl and Superdog ______ them. A.saves B.save C.saving D.is saving 13.Jack_______their cow. A.sells B.sell C.selling D.are selling 14.Jack______up the beanstalk. A.gets B.get C.climb D.climbs 15.The giant(巨獸)______boys. A.eating B.don’t eat C.eats D.eat 16.The goose(鵝)______golden eggs. A.lay B.lays C.layed D.layes 17.The woman _______the beanstalk.(豆秸) A.cut B.cutting C.are cut D.cuts 18.Her mother ______the beanstalk(豆秸). A .take B .is take C. takes D. taking 19 Jack and her mother _____ Blogger.(博客) A. does B.are C.is D. have 20.He____the beans（豆） in the ground. A.buy B.puts C.put D.buys 6