一般现在时.语法讲解PPT
3).主语+行为动词(speak,say,call,go, run….) 1)I speak English.
2)She/He/It speaks English.
3)They call me Tom. 4)He runs very fast.
注意:在一般现在时态的肯定句中, 当主语是第三人称单数(she, he, it), 行为动词要加-s或者 –es.
3. - ___ 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 rain 4. The little child__ not even know that the moon __ around the earth. A. do, move B. do, moves C. does, moves D. did, moved
否定句:She doesn’t like Maths. 一般疑问句:Does she like Maths? 肯定回答:Yes, she does.
否定回答: No, she doesn’t.
注意:在一般现在时态中,当谓语动词是 行为动词的时候,变否定和一般疑问句时, 要借助助动词do和does帮忙。当主语是第 三人称单数(she, he, it)的时候用does, 其他人称用do. 借助助动词do和does以后, 动词要用动词原形。
一般现在时
Ⅰ、概念:
经常、反复发生的动作或存在的状态及 现在的某种状态。
Ⅱ 、构成形式:
1 、肯定式 1)主语 + be (am/is/are)+表语 I am a student. It/ She/He is a teacher. You/They are classmates. 2)主语 +情态动词(can, must, may, need, shall) I can speak English. She must go to school.
Ⅲ 、一般现在时态的用法:
1、表示目前或现在存在的状态或特征. e.g. She is often late. 2、表示客观存在及普遍真理。 e.g. The earth is round. 3、表示现在经常和习惯性发生的动作,常与 sometimes, often, usually, always, everyday… 等时间状语连用。 4、在时间状语从句中表示将来发生的动作。 e.g. If it doesn’t rain tomorrow, we’ll go to the park. 5、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:
2.一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 isn’t.
(2).情态动词
e.g.
She can speak Chinese. 否定句:She can’t speak Chinese.
三、单项选择
1. The Browns ___ a nice car and Brown's brother __ a nice jeep. A. have, have B. has, has C. have, has D. has, have 2. If their house ___ not like ours, what___ it look like? A. is, is B. is, does C. does, does D. does, is
一般疑问句:Can she speak Chinese?
肯定回答:Yes, she can.
否定回答:No, she can’t.
(3)行为动词
1.e.g.
I run very fast.
否定句:I don’t 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 don’t. 2.e.g. She likes Maths.
Is she Li Ling ?
2.We go to school at night.
We don’t go to school at night Do you go to school at night?
3.My brother works in a factory.
My brother doesn’t work in a radio factory. Does your brother works in a radio factory?
come, begin, go, leave, arrive, stop, start, return, E.g. Our holidays begin in a week.
Ⅳ 、 就单词的正确形式填空
looks (look) tired. 1.He _____ goes (go) round the sun. 2.The earth___ 3. May ___ (may) I have your pen? makes (make) perfect. 4.Practice ______ come (come) to school earlier. 5.They usually____ begins (begin) at eight every morning. 6.Class_____ 7.When he comes ___ (come), we’ll go out to meet him. is 8.How ____(be) your father ? is 9.There ____ (be) a school there.
Thank You
Good bye!
Ⅵ 、 Homework
一、写出下列动词第三人称单数的变化形式
be have come go tay teach
write take study watch fly play
二、将下列句子变成否定式和一般疑问句
1.Her name is Li Ling.
Her name isn’t Li Ling.