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1、一般现在时.语法讲解PPT Four short words sum up what has lifted most successful Four short words sum up what has lifted most successful individuals above the crowd: a little bit more. individuals above the crowd: a little bit more. -author -author -date-date、概念:、概念: 经常、反复发生的动作或存在的状态及经常、反复发生的动作或存在的状态及现在的某种状态。现
2、在的某种状态。 1 、肯定式、肯定式 1)主语主语 + be (am/is/are)+表语表语 I am a student. It/ She/He is a teacher. You/They are classmates. 2)主语主语 +情态动词(情态动词(can, must, may, need, shall) I can speak English. She must go to school. 、构成形式、构成形式: 3)They call me Tom.4)He runs very fast.注意:在一般现在时态的肯定句中,注意:在一般现在时态的肯定句中,当主语是第三人称单数(当
3、主语是第三人称单数(she, he, it),),行为动词要加行为动词要加-s或者或者 es.2.一般现在时态的否定和疑问式一般现在时态的否定和疑问式(1).Be动词肯定句:She is a student. 否定句:She is not a student .一般疑问句:Is she a student ?肯定回答:Yes ,she is .否定回答: No ,she isnt.(2).情态动词e.g. She can speak Chinese.否定句:She cant speak Chinese.一般疑问句:Can she speak Chinese?肯定回答:Yes, she can.
4、 否定回答:No, she cant.(3)行为动词1.e.g. I run very fast.否定句:I dont run very fast .一般疑问句:Do you run very fast ?肯定回答:Yes, I do. 否定回答: No, I dont.2.e.g. She likes Maths.否定句:She doesnt like Maths.一般疑问句:Does she like Maths?肯定回答:Yes, she does. 否定回答: No, she doesnt.注意:在一般现在时态中,当谓语动词是注意:在一般现在时态中,当谓语动词是行为动词的时候,变否定和
5、一般疑问句时,行为动词的时候,变否定和一般疑问句时,要借助助动词要借助助动词dodo和和doesdoes帮忙。当主语是第帮忙。当主语是第三人称单数三人称单数(she, he, it)(she, he, it)的时候用的时候用doesdoes,其他人称用其他人称用do. do. 借助助动词借助助动词dodo和和doesdoes以后,以后,动词要用动词原形。动词要用动词原形。 、一般现在时态的用法:、表示目前或现在存在的状态或特征. e.g. She is often late.、表示客观存在及普遍真理。 e.g. The earth is round.、表示现在经常和习惯性发生的动作,常与 so
6、metimes, often, usually, always, everyday 等时间状语连用。、在时间状语从句中表示将来发生的动作。 e.g. If it doesnt rain tomorrow, well go to the park.、表示按时间或计划将要发生的动作,常与时 间状语连用,常用动词为: come, begin, go, leave, arrive, stop, start, return, E.g. Our holidays begin in a week. 、 就单词的正确形式填空1.He _ (look) tired. 2.The earth_ (go) roun
7、d the sun.3. _ (may) I have your pen?4.Practice _ (make) perfect.5.They usually_ (come) to school earlier.6.Class_ (begin) at eight every morning.7.When he _ (come), well go out to meet him.8.How _(be) your father ?9.There _ (be) a school there.looksgoesMaymakescomecomesbeginsisis一、写出下列动词第三人称单数的变化形式
8、写出下列动词第三人称单数的变化形式be have comego stay teach write take study watch fly play 、 Homework二、将下列句子变成否定式和一般疑问句 1Her name is Li Ling.2We go to school at night.3My brother works in a factory.Her name isnt We dont My三、单项选择 1. The Browns _ a nice car and Browns brother _ a nice jeep. A. have, have B. has, has
9、C. have, has D. has, have2. If their house _ not like ours, what_ it look like? A. is, is B. is, does C. does, does D. does, is3. - _ you think he will come? - If it _ tomorrow, he will not come. A. Do, rains B. Are, rains C. Do, will rain D. Are, will rain4. The little child_ not even know that the moon _ around the earth. A. do, move B. do, moves C. does, moves D. did, moved Thank You Good bye!