第三人称单数专项练习(动词)不规则变化：do---- does have----has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。
但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：一、人称代词he, she, it是第三人称单数。
如：1.He likes watching TV. 他喜欢看电视。
2.She has lunch at twelve. 她十二点吃午餐。
3.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：1.Han Mei looks like her mother. 韩梅看起来像她的母亲。
2.Beijing is in China. 北京在中国。
3.Uncle 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：1.A horse is a useful animal. 马是有用的动物。
2.This book is yours. 这本书是你的。
3.That car is red. 那辆小汽车是红色的。
4.The 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：1.Everyone is here. 大家到齐了。
2.There is something wrong with the watch. 这块手表有毛病。
3.This is a pen. 这是一支钢笔。
4.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。
如：1.The milk is in the glass. 牛奶在玻璃杯里。
2.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：1."6" is a lucky number. "6"是个吉利数字。
2."I" is a letter. "I"是个字母。
单三规则1、大多数动词在词尾加“S”如：①stop－stops [s] ; make－makes [s]②read－reads [z] ; 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 [z]；carry－carries [z]study－studies [z]; worry－worries3、以“s, x, ch, sh”结尾的，在词尾加“es”，发音为[iz] 如：teach－teaches [iz]; watch－watches [iz]4、以“o”结尾的动词，加“es”，如：go－goes [z] do－does [z] 注：下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。
如：1、do [du:]－does [dz]2、say [sei]－says [sez]以不发音字母“e”结尾的开音节词，如果尾音是[s]，[z]时，加“s”后字母“e”发音，与所加“s”一起读做[iz]。
如：close－closes [iz]动词第三人称单数形式的练习一、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________ teach_______wash_______ match ______ guess______ study______ finish_________go________ snow______ carry_________二、用括号内动词的适当形式填空。
1.He often ________(have) dinner at home.2.We _______(not watch) TV on Monday.3.Nick _______(not go) to the zoo on Sunday.4.______ they ________(like) the World Cup?5.What _______they often _______(do) on Saturdays?6._______ your parents _______(read) newspapers every day?7.The girl _______(teach) us English on Sundays.8.She and I ________(take) a walk together every evening.9.There ________(be) some water in the bottle.10.Mike _______(like) cooking.11.They _______(have) the same hobby.12.My aunt _______(look) after her baby carefully.13.You always _______(do) your homework well.14.I _______(be) ill. I’m staying in bed.15.She _______(go) to school from Monday to Friday.16.Liu Tao _______(do) not like PE.17.The child often _______(watch) TV in the evening.18.Su Hai and Su Yang _______(have) eight lessons this term三、用所给动词的适当形式填空：1. He________ TV every evening. (watch)2. We always ________ to school on foot. (go)3. Tom, with his classmates, often ______ football after school. (play)4. Your shoes _______ under the bed. (be)5. ______ here and ______ by me. (come, stand)6. His uncle usually _________ to work by bus. (go)7. I always ______ up at six in the morning.(get)8. John ______ like his father. (look)四、选择() 1. _____ you have a book?A. DoB. AreC. IsD. Have()2. They _________ on a farm.A. workingB. is workC. workD. is worked () 3. Does Peter like to watch TV?__________.A. Yes, he likeB. No, he doesn’tC. Yes, he’d likeD. No, he likes()4. She doesn’t __________ her homework in the afternoon.A. doingB. to doC. doesD. do()5. How ______ Mr. Brown _________ to America?A. do,goB. is,goC. does,goD. does,goes ()6. Where’s my camera? I_______ it.A. am not findingB. am not seeingC. can’t findD. can’t look at()7. How___ he go to work?He ____ to work by bike.A. does ;goB. do;goesC. do ;goD. does;goes()8. ___ you usually late for school?No, ___.A. Do ; I amB. Does ;notC. Are ; I’m notD. Are ; I aren’t()9. _____ she _____ home at six every day?A. Is , leaveB. Does , leaveC. Is , leavesD. Does , left()10. Mr. Yang ______ English this term.A. teaches ourB. teaches usC. teachs usD. teach our五、填空.1.She_____ _____(do)her homework every day.2.He_____ _____(live)in Huanggang.3.He_____ _____(need)a pair pf shoes.4.Danny_____ _____(see)the apple tree?5.She_____ _____(come)from America.6.The girl_____ _____(look)out of the window and sees many bieds in the sky.7.Jenny runs home and_____ _____(sit)on the chair.8.Let him _____(play)basketball.9.Everyone_____(know)what he really like.10..Tose girls____(be)my sister.11.That girl_____(call)me evety Sunday.12..How___(do)she_____(spell)the word?六、用括号里所给词的适当形式，写出下列句子的否定句。