动词第三人称单数的变化规则及练习.doc

动词第三人称单数的变化规则及练习一、 变化规则1、直接在动词后+s 例如： like- likes play-plays 2、以s, x, sh, ch, 接尾的动词：+es 例如： wash-washes3、以辅音+o接尾的动词：+es 例如： go-goes4、以辅音+y接尾的动词：变y为i+es 例如： fly-flies动词短语：+s: Plays, skips, sings, gives, starts, likes, buys some toys, gets up comes back home makes noodles, eats lunch drinks coffee begins his class , practices the piano+es : watches TV brushes his teeth goes to bed goes to school does my homework does some readingy i+ es: fly flies study studies 注意：不规则变化：have-has，be-is，do-does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_ do_teach_practice_二、请看下面两组句子，注意区分他们的共同点和不同点。I go to school every day. I dont go to school every day.He goes to school every day. He doesnt go to school every day.Do you go to school every day? Yes, I do. (No, I dont) Does he go to school every day?Yes, he does. (No, he doesnt)注：1）第三人称单数用了 does 后面就不用动词的s形式了,而用动词原形.。2）变为疑问句,要在句首加Do, Does ; 变为否定句, 要在动词前面加do not ,does not, 可以简写为 dont, doesnt。课堂练习一一、把下列句子改成一般疑问句并做肯定、否定回答。1I usually get up at six oclock.Do you usually get up at six ?Yes, I do . /No, I dont .2. We usually write e-mails on Saturday evening ？ Yes, No, 3. They have the same hobby. ？ Yes, No, 4. Su Hai and Su yang like listening to music after school. ？ Yes, No, 5. Helen usually watches TV in the evening. ？ Yes, No, 二、否定句:在动词前+doesnt或dont.1. She_ _(do)her homework every day.2. He_ _(live)in Huanggang.3. The girl_ _(look)out of the window and sees many birds in the sky.4. Jenny runs home and_ _(sit)on the chair.三、一般疑问句:1._the desk_(have)four legs? Yes, it does.2._she_(do)her homework every day?Yes, she does.3._he_(live)in Huanggang? No, he doesnt.4. Does Danny_(see)the apple tree?四、按照要求改写句子：1. I do my homework every day.(改为一般疑问句，作否定回答)_2. She likes milk.(改为一般疑问句，作肯定回答)_ 3. Amy likes playing computer games.(改为一般疑问句，作否定回答)_4. We go to school every morning.(改为否定句)_5. I like taking photos in the park.(对划线部分提问)_6. John comes from Canada.(对划线部分提问)_7. Simon and Daniel like going skating.(改为否定句)_五、改错(划出错误的地方，将正确的写在横线上)1. Isyour brother speak English? _2. Does he likes going fishing? _3. He likes play games after class. _4. Mr. Wu teaches our English. _5. She doesnt does her homework on Sundays. _课堂练习二一、写出所给词的第三人称单数形式sit swim read make run write have go do watch cry study play say wash 二、用do或does的适当形式填空1. _ you ride a bike to school? Yes, I _.2. _ your sister like PE? No, she _.3. What_ the students have? They have some pens.4. How_ Linda go to school? She goes to school on foot.5. He _ not speak English. He speaks Chinese.6. _ they watch TV on Sundays? Yes, they _.7. My father and mother _ not read newspapers on Saturday.三、句型转换1. I go to school by bus. (用He做主语变否定句) _2. Kim plays baseball very well. (变一般疑问句) _3. David doesnt like learning French. （变肯定句） _4. Alan doesnt watch TV on school nights. （变肯定句） _5. We have enough time to do it. (变否定句) _6. Snoopy has a car. （对划线部分提问） _ _7. Do you have a pencil? (把主语改成she) _ _四、动词的适当形式填空Jims father (work) in a bank. He (go) to work by bus every morning, sometimes he (ride) his bike. But he (be) never late for work. He (work) very hard.Jim (like) his father very much. They often （play） badminton（羽毛球）in front of their house, sometimes they (play) table tennis in Jims school. Jim (like) to talk with his father. His father (like) to hear Jim talking about his friends and his school. On Saturday or Sunday, they often (p