亠般现在时的讲解及用法定义及讲解1定义：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2, 只有在第三人称单数用动词的 三单变化〃，其他用动词的原形注：1）第一人称〔I, we）第二人称〔you〕第三人称〔He,She,they,it所有的名字 名称〕 单数〔一个人或事物〕 复数〔两个或两个以上的人或事物〕 第三人称 单数〔第三方的单个的人或事物，除了 they〕2）三单变化多数在动词〔不是名词〕后+ s eg: play — plays like — likes〔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再加-es.〔辅音字母：除 a,e,i,o,u这5个元音字母外的21个字母都是辅音字母；元音字母力卩-y： stay--stays play--plays say--says buy--buys辅音字母力卩-y:try---tries study-studies cry---cries fly---flies二、一般现在时的用法1, 经常性或习惯性的动作，常及表示频度的时间状语连用。
时间状语： every day, sometimes, at …,on Sun day usually, once a weekI leave home for school at 7 every morning.2, 客观真理，客观存在，科学事实The earth goes around the sun.3，表示格言或警句中Practice makes perfect.熟能生巧注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一 般现在时例: Columbus proved that the earth is round..4, 现在时刻的状态、能力、性格、个性Miss wang writes good En glish but does not speak well.5, 在某些以here,there开头的句子中，用一般现在时表示正在发生的动作eg. Here comes a bus公交车来了注：及一般现在时连用的时间状语〔表示时间的词或词组〕（1） 表示频率的副词： always,ofte n, usually,sometimes.（2） 时间状语： on Sun days,every day ,every morning ,every year.（3） 表示频率的词组： once a year,three times a week.动词有三种：实义动词，be动词，情态动词〔初一未涉及〕5, —般现在时中，当主语是第三人称单数，动词是实义动词〔1〕动词变相应的第三人称单数形式J〔2〕肯定句主语+动词s+其它eg.（2021） Bill often gives money to the poor.（3） 否认句主语+does n't+动词原形+其它eg. Bill often doesn'give money to the poor.（4） 一般疑问句Does+主语+动词原形+其它eg. Does bill ofte n give money to the poor.肯定答复 Yes，主语 +does（Yes,he does）〔6〕否认答复 No，主语 +does n't（No,he does'）6, 当主语不是第三人称单数时〔动词没有三单变化〕，动词是实义动词（1） 肯定句 主语+动词原形+其它eg.l want to marry you.（2） 否认句 主语+don't+动词原形+其它eg.I don 'wa nt to marry you.（3） 一般疑冋句 Do+主语+动词原形+其它eg.Do you want to marry me?肯定答复Yes,主语+do（Yes,I do.）否认答复 No，主语 +don't（No,l don'.）be动词的一般现在时有三种形式，即： am, is, are。
1. 如果主语是第一人称I时，be动词用amEg.肯定句：I am a stude nt.我是一名学生否认句： am not一般疑问句：Am i肯定 / 否认答复：Yes,i am. No i am not.2. 如果主语是you 〔你，你们〕，they 〔他们，它们，她们〕或名词复数 〔两个以上的人或物〕时，be动词必须用are如：肯定句，否认句，一般疑问句及肯定、否认答复You are my good frie nd.Tom and Lily are my good frie nds.They are my good frie nds.are 及主语还可缩写如： We are= We're , They are =They're, You are =You're而 are 及 not 可缩写成 aren't如：They aren't students.他们不是学生但是 am及not不能缩写3. 如果主语是单数名词、不可数名词或单数第三人称代词〔he, she, it丨时，be 动词用is肯定句/否认句/一般疑问句及肯定、否认的答复如:My mother is a teacher. 我的妈妈是一名教师。
He is a stude nt.他是一名学生is 也可及主语缩写，如:He is = He's, My mother is = My mother's 等但是 This is 不可缩写而is及not可缩写成isn't如:This isn't a book.这不是一本书三、课堂练习稳固1,主语为第三人称单数肯定句： He gets (get) up at six o ' clock. 否认句：doesn ' t ,get一般疑问句：Does he get up at six o ' clock.(肯定，否认答复〕2，主语为第一人称I__get__(get)up at six o ' clock. 否认句：I don ' t get up at six o ' clock.一般疑问句：Do you get up at six o ' clock.〔肯定，否认答复〕四、课堂强化练习（一）单项选择题1, The picture nice.A. looks B. is looked C. look D. is look ing2, She down and soon falls asleep.A. live B. la in C. laid D. sits3 , The teacher us to come to school on time.A. ask B. ask ing C. asks D. asked4. Joh n always others.A. help B. helpi ng C. helps D. to help5. He for eight hours every day.A. working B. to work C. works D. worked6. You ' d better at home and your homework.A. to stay, do B. stay, do C. to stay, to do D. stay, to do7. He sits dow n and a rest.A. hav ing B. have C. to have D. has8. Un cle Wang n ever a cake.A. make B. to make C. maki ng D. makes（二）句子改错1. Is your brother speak En glish?2. Does he likes going fish ing?3. He likes play games after class.4. Mr. Wu teachs us En glish.5. She don ' t do her homework every evening.五、课后练习〔一〕用动词的适当形式填空1. She (go) to school at seven o' clock.2. It ' s 6 o' clock. They are (eat) supper.3. He usually up at 17:00.(get )4. She (live) in Beiji ng.5. Amy (be) here just now.6. (be)there a fly on the table just now?7. My father (watch) TV every eve ning .8. My father (make) toys these days.9. Amy (read) English every day10. Che n Jie sometimes (go)to the park with hersister.〔二〕选择填空1 . I want homework now.A. doingB. to doC. to do myD. do my2． It's time .A. go to school B. play games C. to go home D. to domy homeworks3． you the blackboard? Yes, I am.A. Can, clean B. Am, cleaning C. Are, cleaning D.Doclean4 ． go and help her.A. Let's me B. Let's us C. Let's D. Let's to5 ． What are they doing? They are things away.A. put B. puting C. putting D. carry6 ． Do they have a new car? Yes, .A .they are B.they haveC. they don'tD. they do7． He often supper at 6:00 in the evening.A. have B. has c. is having D. is eating8. It 's 6 o 'clock in the morning. He A. get up B. gets up C. is geting up D. is getting up9. What are you doing? I 'm TV.A. watch B. watches C. to watch D. watching10. We any Chinese classes on Friday.A. are having B. aren 't having C. don 't have D. are ha。