一般现在时语法三单精讲概要

1、一般现在时精讲一、什么是一般现在时：一般现在时：表示经常性的事情，经常性的动作或一般性事实。结构：主语+动词（单数或者复数根据主语决定）二、什么时候用一般现在时：1. 当句子表示客观真理，客观存在，科学事实时：The earth moves around the sun.Shan ghai lies in the east of China.2. 当句子是名言警句时：Pride goes before a fall. 骄者必败。3. 当句子表示现在时刻的状态、能力、性格、个性：I don't want so much.Ann Wang writes good En glish but

2、does not speak well.4. 当句子中出现了时间标志语：（1） 表示频度的副词或词组 always ,often, usually, sometimes， once a year等（2）every day, in the morning, every year , at 在几点钟 等时间状语三、一般现在时怎么用：当句子符合上面任何一种情况，则句子采用一般现在时，这时候动词要开始改变啦，兵分2路改变：大部队一路：当主语是第三人称单数时：1、动词变成相应的第三人称单数形式（动词的复数形式）2、肯定句：主语+动词复数+其它3、 否定句：主语+does n't+动词原形+其它（

3、其中的does代表动词的复数，不代表没有任何 意义）4、 一般疑问句：Does+主语+动词原形+其它？5、肯定回答： Yes，主语+does6、否定回答： No,主语+doesn't7、特殊疑问句：特殊疑问词+般疑问句？（一般疑问句中用does）小分队一路：当主语不是第三人称单数时：1动词不变成相应的第三人称单数形式（动词不用变成复数）2、肯定句：主语+动词原形+其它3、 否定句：主语+don't+动词原形+其它（其中的do代表动词的单数，不代表没有任何意义）4、 一般疑问句：Do+主语+动词原形+其它？5、肯定回答：Yes,主语+do6、否定回答：No,主语+don'

4、t7、 特殊疑问句：特殊疑问词 +般疑问句？（一般疑问句中用do）总结起来就是这样的一般现在时的结构r 1、，冃定式疑问式否定式否定疑问式I work.Do you work?I don't work.Do n't you work?You work.Do you work?You don't work.Do n't you work?We work.Do you work?We don't work.Do n't you work?They work.Do they work?They don't work.Don't they

5、 work?He(She,lt) works.Does he(she,it) work?He(She,It) does n't work.Does n't he(she it) work?四、那么，动词如何变成复数呢:三单变化：（1）直接在动词词尾加-s.ask-asks work-works get-gets stay-stays(2)以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es.watch-watches wish-wishes fix-fixes do-doesgo-goes pass-passes(3) 以 辅音字母加-y”结尾的动词，要先变 y为i

6、再加-es.try-tries study-studies cry-cries fly-flies情况构成方法、+ & 读曰例词一般情况加-s清辅音后读/s/浊辅音和兀音后读/z/swim-swims ; help-helps;like-likes以辅音字母+o结尾的词加-es读/z/goes,does以s,sh,ch,x等结尾的词加-es读 /iz/watches,washes以辅音字母+y结尾的词变y为i再加es读/z/study-studies不规则变化have和be动词变have为has变be为 am,is,arehave-has be-am,is,are亠般现在时专项练习一、

7、考点/易错点1动词变形有误1 He _ football very well.2 Danny _ to school at 7:10.答案：1 plays 2 goes plaies, gos；2与名词变复解析：1以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加数不同，变单三人称形式以o结尾的词要加es.考点/易错点2对主语判断有误例: This book _mi ne答案：is解析：书是属于“它(it )”的范围，是无生命的它，所以也是三单。二、例题精析We often(play) in the playgro und.A. play B. plays C. plaies D.pla

8、yedA主语是”we”，“ often”是频率副词，句子用一般现在时三、实践运用【基础】1. The picturen ice.A. looks B. is looked C. look D. is looki ng答案：A解析：主语是第三人称单数，谓语动词用三单形式2. ITV once a week.C. watch D.watchedA. watches B. watchs答案：C解析：once a week 周一次，表示频率，动词用一般现在时。主语是第一人称，动词用原形。【巩固】1. Joh n alwaysothers.A. help B. helping C. helps D. t

9、o help答案：C解析：主语是第三人称单数，谓语动词用三单形式2. The teacher told us that the sunin the east.A.risesB. roseC. raisesD.raised答案：A解析：太阳从东方升起，这是客观事实，用一般现在时，动词要用单三式【拔高】1. The stude nts will go to the Summer Palace if ittomorrow.A. don't rain B. does n't rain C. won't rain答案：B。2. You should visit this part

10、 of the country whe n.A. spri ng will comB. spri ng comes C. It has bee n spri ngD. It will be spri ng答案：B解析：when引导的时间状语从句，从句一般时态，主句用一般将来时态或祈使句。所以选B专项练习：写出下列动词的相应形式：1. 第三人称单数：washmatchguessstudyfinishgosnowcarry2. 写出下歹y动词的过去式：stopseedriveletcarrykeepjoinfindthinkteachcatch3. 写出下歹U动词的现在分词形式：staybegin

11、forgetforgetliedierunprefergiveringdancehopeII. 用所给动词的适当形式填空：v1. I(write) to you as soon as I(get) to London.V2. He doesn ' t feel well and(not eat) any food this morning.v3. Hen ot(see) me come in, for he(read) somethi ng withgreat in terest.v4. I(let) you have the book as soon as I(fini sh) it

12、.V5. While we(wait) for our teacher, a little boy(run) up to us.6. Don ' t make a noise. Grandpa(sleep).7.It ' s seven now, Tom ' s family(watch) TV.v8. It(take) me two hours to finish my homework last ni ght.v9. Whatyour mother(do) at eight yesterday evening? She(wash) clothes.10. it(ra

13、in) whe n school was over yesterday?11. What(do)tomorrow? We(play) football.12. There(be) a football match on TV this evening.13. They said they(visit) the Great Wall the n ext summer holiday.vl4. Who(da nee) the best in your class?15. Will you come if he(not come)?V6. The teacher told us the earth(

14、move) round the sun.17. They(have) a party in the garde n if it(not rain) tomorrow.18 She(buy) a sweater yesterday.19. I don ' t know if Mr.Wang(go) to Shanghai tomorrow. If he(go), I(ask) him(take) some books to my daughter, because she(study)there.III单项选择：1. The stude nts will go to the Summer

15、 Palace if ittomorrow.A.don ' t rain B. doesn' t rain C. won ' t rain2. Therean En glish film n ext week.A. will have B. is going to have C. is going to be D. was going to be3. The picturenice.A. looks B. is looked C. look D. is look ing4. Shedow n and soon fell asleep.A. live B. lai n C

16、. laid D. lay5. Theythe office at nine yesterday morning.A. reached to B. arrived C. went D. get to6. We shall go to Shan ghai on bus in ess before youback n ext week.A. wil come B. came C. would come D. come7. Don ' t smoke until the planeoff.A. takes B. took C. was take n D. is take8. I saw he

17、rthe room this morning.A. to en ter() B. en tered C. en ter D. en ters9. the teacher asked usto school on time.A. to come B. coming C. come D. comes10. Joh n is alwaysothers.A. help B. help ing C. helps D. to help11. He told usat eight.A. worki ng B. to work C. work D. worked12. You ' d betterat home andyour homework.A. to stay, do B. stay, do C. to stay, to do D.