1. 一般现在时的概念

一般现在时1.概念：一般现在时表示经常的、习惯性的动作或存在的状态。

2. 一般现在时的构成一般现在时的构成主要有两种形式：(1)be型：句子的谓语动词只有be(am，is或are)：a.肯定句中，只出现be，如：I am a student.我是一名学生。

b.否认句中，要在be后面加not，如：She isn't a teacher.她不是教师。

c.一般疑问句，要将be放在句子开头(注意句首字母大写)，句尾用问号，答语用Yes，主语+be.或No，主语+be+not.如：—Are you ready?—你准备好了吗? —Yes，I am.—是的，我准备好了。

(—No，I'm not.—不，我没准备好。

)(2)实义动词型：句中的谓语动词为实义动词(也叫行为动词)：a.肯定句中，只出现实义动词，如：I get up in the morning.我早晨起床。

b.否认句中，要在实义动词前面加do(does)+not，do(does)作助动词，本身无意义，常与not缩写成don't(doesn't)，如：I don't like vegetables.我不喜欢蔬菜。

c.一般疑问句，要在句子开头加助动词Do(does)，句尾用问号，简单答语用Yes，主语+do(does).或No，主语+do(does)+not.如：—Do you like oranges?—你喜欢桔子吗?—Yes，I do.—是的，我喜欢。

(—No，I don't.—不，我不喜欢。

)3.一般现在时的用法1) 经常性或习惯性的动作，常与表示频度的时间状语连用，如：every…, sometimes, at…, on Sunday等。

I leave home for school at 7 every morning. 我每天早上7点去上学。

2) 客观真理，客观存在，科学事实。

The earth moves around the sun. 地球绕着太阳。

Shanghai lies in the east of China. XX位于中国的东部。

3) 表示格言或警句中。

Pride goes before a fall. 骄者必败。

4) 现在时刻的状态、能力、性格、个性。

Xiao Wang writes good English but does not speak well.小王的英语书面表达能力比口语好。

【No. 1】一般现在时的定义及构成一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作。

构成:主语+动词原形+宾语一般现在时用行为动词的原形，但第三人称单数作主语时，动词要用第三人称单数形式。

〔一般的动词词尾+S。

以sh/ch/ss/x结尾的词+es.以辅音字母Y结尾的把Y变成i再+es。

辅音字母+o结尾的+es.特殊变化：have变为has)【No. 2】一般现在时的应用(1)在实际应用中，一般现在时常与以下时间状语联用：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays ……例句：He usually plays football on Sundays.一般现在时练习一.用词的适当形式填空。

1.What time_________ his father_________(do) the work?2.He _________(get) up at five o’clock.3.__________ you _________(brush) your teeth every morning.4.What ________ ( do ) he usually ________( do ) after school?5.Tom ________ ( study ) English, Chinese, Maths, Science and Art at school.6. Kitty sometimes __________(go) to the park with his sister.7.At eight at night, she __________( watch ) TV with her parents.8. ________ Mike________( read ) English every day?9.How many lessons________ your classmates______( have ) on Monday?10.We often___________ ( play ) football in the playground.二．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三．按要求完成句子1.Tom does his homework at home.否认句:_________________________________________________一般疑问句:_________________________________________________ 2.She has a lot of work to do this week.(改一般疑问句)_____________________3.We have a big TV set in our house.(改为否认句)_____________________4.Does she have any English-Chinese dictionary?(作否认答复)_____________________5.We have some nice pictures.(主语改为he)_____________________现在进展时的讲解与练习。

可用来表示现在进展时的时间状语，常用的有：now, this week, at this moment，right now 等；或者告诉你一个准确的现在时间，或者用look, listen〔常用于句子的开头，表示提醒听者注意正在发生的事情〕〔一〕根本用法：〔1〕表示〔说话瞬间〕正在进展或发生的动作。

I’m visiting my friends now.也可表示当前一段时间内的活动或现阶段正在进展的动作或存在的状态。

He is always working hard.他总是非常努力地工作。

(表示赞扬)〔2〕谓语构成：be (am/ is/ are)＋v-ing 〔动词的现在分词〕【注意】be动词要与主语的人称和数保持一致。

如：I’m watching TV now. 我现在正在看电视。

They’re playing football. 他们正在踢足球。

〔3〕现在分词的构成。

a.一般情况下在动词词尾加ing。

go→going ask 〔问，询问〕→asking look→looking b.以不发音的e结尾的动词，去掉e加ing。

have →having take→taking make〔做，制造〕→making write〔写〕→writing c.以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。

get→getting sit〔坐〕→sitting put〔放〕→putting run〔跑〕→runningswim→swimming begin〔开场〕→beginning shop→shoppingd.特殊形式lie-lying die-dying〔四〕现在进展时态的肯定式、否认式、疑问式及简单答复。

〔1〕肯定式：主语+be＋v-ing +其他He is running. 他正在跑。

The students are cleaning the room now .〔2〕否认式：主语+be＋not＋v-ing +其他He is not running.The students aren’t cleaning the room now. 这些学生现在没有在清扫房间。

〔3〕一般问句：be动词提前。

“Be+主语+v-ing+其他？〞肯定答语Yes，主语＋be.否认答语No，主语＋be not.Is he running? Yes, he is. No, he isn’t.Are The students cleaning the room now? Yes, they are. No, they aren’t.〔4〕特殊问句式：“疑问词+be ＋主语＋v-ing＋其他？〞a. 对谓语动词进展提问的：What＋be ＋主语＋doing＋其他？What is the old man doing under the tree? 那个老人正在树下面做什么呢？b. 对其他成份进展提问的，疑问词＋一般疑问句？Where is the boy swimming? 那个男孩正在哪里游泳？Who is she waiting for? 她正在等谁呢？五、现在进展时与一般现在时的区别〔一〕现在进展时表示动作的暂时性，而一般现在时表示动作的习惯性和经常性I am watching TV now. 〔暂时性〕我现在在看电视。