初中一般现在时讲解和练习
一般现在时
定义:表示经常发生的事情,动作或一般性的事实。
常用词:often, usually, always, every day, twice a month, sometimes,
seldom, never
动词三单变化:
1、 在动词尾直接加 s。如:
play—plays, want—wants, work—works, know—knows, help—helps,
get—gets
2、 以字母s、x、ch、sh、o结尾的动词加-es;如:
guess—guesses, fix—fixes, teach—teaches, go—goes,do—does,
watch—watches,catch—catches fish—fishes钓鱼
3、 以辅音字母+y结尾的动词,先变y为i,再加-es。如:
study—studies,carry—carries,fly—flies,worry—worries
4、 特殊: have-has 有,吃
用法:
1、 表示经常性,习惯性,永久性的动作或状态。
eg: I usually(go) to school by bus.
She (help) her mother do the housework once a week.
2、 表示客观真理,科学原理,自然现象等客观事实或格言,谚语等
eg: The sun
太阳东升西落。
Tomorrow 有be动词或情态动词
肯定句:主语+be|can +其它 如:I am a student. I can swim.
否定句:主语+ be|can+not+其它 如:I am not a boy. I can not swim.
一般疑问句:Be|can +主语+其它 (注意:人称的转换)
如:-Are you a student? -Yes, I am. / No, I'm not.(I am a student.)
-Can you swim? -Yes, I can. /No, I can’t. (I can swim.)
特殊疑问句:疑问词+一般疑问句 如:Where is my bike?
eg: 肯定句 I am a middle school student. I can finish my homework today.
否定句 一般疑问句
没有be动词和情态动词
肯定句:主语+动词(+其它) 如: We often play basketball after school.
He often plays basketball after school.
否定句:主语+ don't/doesn’t+动词原形(+其它)
如:We don’t play basketball after school.
He doesn’t play basketball after school.
一般疑问句:(1)当主语是第一人称或第二人称时,助动词用do
Do +主语+动词原形+其它 如:Do you often play basketball after school?
(2)当主语是第三人称时,助动词用does
Does +主语+动词原形+其它 如:Does he often play basketball after school?
特殊疑问句:疑问词+一般疑问句 如:When do you often play basketball?
How often do you play basketball? What do you often do after school?
eg: 陈述句He gets up at 7:00 every morning. We go to school from Monday to Friday.
否定句 一般疑问句 特殊疑问句 一般现在时练习
一、 写出下列动词的三单形式和词尾发音
go enjoy study get walk buy wash take
find play guess run
二、 选择题
1、We often supper lunch at 12:00.
A. have B. has C. eat D. is having
2、I late for school.
A. never be B. am never C. never am D. be never
3、It Sunday tomorrow. We are going to the park.
A. will be B. is going to be C. is D. will is
4、_________Alice often play the piano.
No, she __________.
A. Do; do B. Does; does C. Does; doesn’t
5、 ________ your pen friend _______ in Beijing?
A. Do; live B. Do; lives C. Does; live
6、 Tom and Mike _______ very excited, they will take a trip.
A. is B. are C. am
7、 Fangfang is a good student. She _______maths.
A. does good at B. well do it C. is good at
8、 The kite _______ a bird.
A. look like B. is looking C. looks like
三、用词的正确形式填空
1、He often ________(have) dinner at home.
2、Daniel and Tommy _______(be) in Class One.
3、She often (come) to my home last year.
4、I _______(be) ill. I’m staying in bed.
5、Mike sometimes __________ (go) to the park with his sister.
6、At eight at night, she ____________ (watch) TV with her parents.
7、 ---When _______ you _________ (come) to china?
-----Next year.
8、What _______he often _______(do) on sunday?
9、There ______(be) some water in the bottle.
10、Mike _______(like) cooking.
Mike _________ (do) his homework every day.
11、We usually ________ (play) basketball after class.
12、I like singing. I often _________(listen) to the music in the evening.
13、My grandma_________(watch) TV every day.
三、变换句型:
1、一般疑问句
否定回答
对划线部分提问
2、 一般疑问句
肯定回答
对划线部分提问