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1、在一般现在时中,当主语是第三人称单数形式时,行为动词用第三人称单数形式,即加-s 或 es.具体方法如下:第1页/共34页1.一般情况下,直接加 -s.如:work-works play-plays rain-rains see-sees第2页/共34页2.以 sh,ch,s,x或o结尾的词后加-es.如:wash-washes teach-teaches fix-fixes do-does go-goes第3页/共34页3.以辅音字母加-y结尾的,先把y变成i,再加-es.如:study-studies fly-flies carry-carries第4页/共34页动词短语：+s:Plays
2、,skips,sings,gives,starts,likes,buys some toys,gets up comes back home makes noodles,eats lunch drinks coffee begins his class,practises 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 不规则变化：have-has第5页/共34页思考：什么时候
3、用动词的原型？什么时候用动词的三单形式？观察下列图片，并得出结论。第6页/共34页 The girl eats apples.The two boys eat apples.第7页/共34页Mike plays basketball.The boys play basketball.l第8页/共34页Xiao mei goes to school.The sisters go to school.第9页/共34页Ming ming watches TV.Tim and his mother watch TV.第10页/共34页Mary goes shopping.Her friends go
4、shopping.第11页/共34页Jane reads books.The students read books.第12页/共34页二.哪些主语是第三人称单数第13页/共34页1.人称代词he,she,it是第三人称单数.1).He likes watching TV.他喜欢看电视.2).She has lunch at twelve.他十二点吃午餐.3).It looks like a cat.它看起来象只猫.第14页/共34页2.单个人名.地名或称呼作主语时,是第三人称单数形式.如:1).Han Mei watches TV with her mother.韩梅和她的母亲看电视.2).
5、Beijing is in China.北京在中国.3).Miss Wu often makes cakes.王叔叔经常做蛋糕.第15页/共34页3.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).This girl plays football in school.2).This book is yours.3).That car is red.4).The cat is Lucys.第16页/共34页5.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
6、 very small.那块面包很小.第17页/共34页6.当数字或字母做主语时,看做第三人称单数.如:1).“6”is a lucky number.“6”是个吉利数字.2).“I”is a letter.“I”是个字母.第18页/共34页专项习题精练(着眼高分 查漏补缺)用括号中所给动词的适当形式填空第19页/共34页1.He often _(have)dinner at home.2.Daniel and Tommy _(be)in Class One.3.We _(watch)TV on Monday.4.Nick _(go)to the zoo on Sunday.第20页/共34页
7、5.Mike _(like)cooking.6.They _(have)the same hobby.7.My aunt _(look)after her baby carefully.8.You always _(do)your homework well.9.I _(be)ill.Im staying in bed.10.She _(go)to school from Monday to Friday.第21页/共34页11.Danny _(study)English,Chinese,math,science and art at school.12.Mike sometimes _(go
8、)to the park with his sister.13.My father always _(come)back(回来)from work very late.14.The teacher is busy.He _(sleep睡觉)six hours a day.15.Joan _(sing唱歌)in the classroom every day.She often _(sing)there.第22页/共34页一般现在时一般现在时结构：结构：主语(I,we,you,they,the girls)主语(he,she,it,Tom,the boy)+动词原形(go,play,talk)+
9、动词三单(goes,plays,talks)定义：定义：表示经常性或习惯性的动作。第23页/共34页怎么改一般疑问句：一找be动和情态，二找主语你、我、他，找到了，恭喜你，把他们句首安个家，be动、情态要在前，紧跟主语你、我、他，注意要把some换any。找不到be动和情态，do会在句首笑你傻，主语三单就打死（does）它，别忘了还有过去式是did.检查完拼写就搞定啦！第24页/共34页怎么改否定句的顺口溜 先找be动和情态，再把not后面带，找不到也别急，实意动词圈出来，dont、doesnt、didint当帽戴，还得小心被some害，改成any，才算完.第25页/共34页一般现在时一般现在
10、时结构：结构：肯定句：（复数）主语+动词原形+其他一般疑问句：Do+（复数）主语+动词原形+其他？否定句：（复数）主语+dont +动词原形+其他肯/否回答：Yes,主语+do.No,No,主语主语+dont.+dont.特殊疑问句：特殊疑问词+do/does+主语+动词原形第26页/共34页结构：结构：肯定句：（单数）主语+动词三单+其他否定句：（单数）主语+doesnt+动词原形+其他一般疑问句：Does+主语+动词原形+其他？肯/否回答：Yes,主语+does.No,主语+doesnt.第27页/共34页1.I speak English.2.We like Math.3.They go
11、 swimming on Sundays.将下列句子改成否定句，一般疑问句并回答：I dont speak English.Do you speak English?Yes,I do/No,I dont.We don t like Moths.Do you like moths?Yes,we do/No,we dont.They dont go swimming on Sundays.Do they go swimming on Sundays?Yes,they do./No,they dont.第28页/共34页一般疑问句，肯定回答，否定回答.Simon and Daniel like go
12、ing skating.My parents watch TV every day.Sun Yang and Sun Fang usually wash clothes on Saturdays.Her classmates play football in school.第29页/共34页一般疑问句，肯定回答，否定回答.She likes milk.He speaks English very well.John comes from Canada.Amy likes playing computer games.第30页/共34页Gao Shans sister likes playing
13、 table tennis.My dog runs fast.Mingming usually waters the flowers every day.Tom does his homework at home.第31页/共34页Lets correct:1.I goes to school at six every day.2.He dont like playing football.3.They likes playing games.4.Daming watchs TV in the evening.5.Does he usually has a party?6.What do th
14、ey on Sunday?7.Tony goes always to school at eight oclock.8.What they eat in the party?9.Lily haves lunch at school.10.What do his parents usually gives him?_第32页/共34页1.I want to buy a big green bag.(变特殊疑问句)_ _ you want to buy？2.Mary does not have any books.(变肯定句)Mary _ _ books.3.She likes the black bag.(变为否定句)She doesnt like the black bag.What dohas some4.I buy the pants for only 50 Yuan.(用she改写句子)_ _ the pants for only 50 Yuan.She buys5.He often has hamburgers and apples for dinner.(变为一般疑问句)He doesnt often have hamburgers and apples for dinner.第33页/共34页感谢您的观看！第34页/共34页