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.否定句中，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.否定句中，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，简略答语用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. 上海位于中国的东部。

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. Do

B. Are

C. Is

D. Have

( )2. They _________ on a farm.

A. working

B. is work

C. work

D. is worked

( ) 3. Does Peter like to watch TV

__________.

A. Yes, he like

B. No, he doesn’t

C. Yes, he’d like

D. No, he likes ( )4. She doesn’t __________ her homework in the afternoon.

A. doing

B. to do

C. does

D. do

( )5. How ____________ Mr. Brown ___________ to America

A. do,go

B. is,go

C. does,go

D. does,goes

( )6. Where’s my camera I____________ it.

A. am not finding

B. am not seeing

C. can’t find

D. can’t look at ( )7. How ___________ he go to work

He ___________ to work by bike.

A. does ;go

B. do;goes

C. do ;go

D. does;goes

( )8. ______ you usually late for school

No, _____________.

A. Do ; I am

B. Does ;not

C. Are ; I’m not

D. Are ; I aren’t ( )9. _____ she _____ home at six every day

A. Is , leave

B. Does , leave

C. Is , leaves

D. Does , left

( )10. Mr. Yang ____________ English this term.

A. teaches our

B. teaches us

C. teachs us

D. teach our

三．按要求完成句子

1.Tom does his homework at home.

否定句:_________________________________________________

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.(改为否定句)

_____________________

4.Does she have any English-Chinese dictionary