内容正文:
中考专项复习 动词时态
一般现在时
一、谓语动词的构成形式:
主语+动词原形/第三人称单数形式(三单)+----.是动词原形还是三单取决于主语,当主语是第三人称单数(he,she,it)时,谓语动词为三单,反之,则为动词原形。
如,He plays basketball everyday. I have noodles for breakfast.
动词原形变单三记住六个字母:s,es, ies.具体说见下表
类别 说明 例词
s 一般情况下加s Work - works
stay – stays
es 以s,x,ch,sh o,结尾的加es watch-watches
finish- finishes
ies 以辅音字母加y结尾的变y为i加es study - studies
二、一般现在时的用法
主要有以下三方面的用法,
1.用来表示现在的状态,特征。如:He works in a big company。
The book is very interesting.
---Where are my keys?
---They are on the desk.
2. 表示习惯性和经常发生动作,如:
1)I often go to bed at 9∶30
2)What do you usually do on weekends?
3) My father usually rides his bike to school.
3. 表示普遍事实或客观真理,如,1) The earth moves around the sun
2)The teacher told us the light travels faster than the sound.
三、标志词
常与下列时间状语连用:
1)Always, usually, often, sometimes, hardly, never等。
如,They usually go to school by bike.
2)once a year, twice a week, every year/day/week等。
如,He writes to his father twice a month.
四、句式特点
变疑问句,否定句时,当谓语部分为系动词be时,疑问句把be提前,否定句在be后加not.
即:一般疑问句:Be +主语+---?
否定句:主语 +be +not +----
如,1. ---Is this your bike?
---Yes, it is. No, it isn’t.
2.They are not my parents.
当谓语是行为动词时,要用助动词do/does,可以总结为如下公式:
一般疑问句:Do/Does + 主语+动词原形+---?如, Do they live in Beijing?
Yes, they do. No, they don’t.
Does he write to his father twice a week?
Yes, he does. No, he doesn’t
否定句:主语+don’t/doesn’t+动词原形+---. They don’t usually go to school by bus.
注意:在含有条件状语从句和时间状语从句的复合句中,如果主句时态为一般将来时,从句时态要用一般现在时。即主将从现
如,1)I will stay at home if it rains tomorrow.
2) I will call you as soon as Tom comes here.
五、即时训练
用所给动词的适当形式填空
1.My roommate often ________(ask) me to teach her to play chess.
2. A large number of engineers _______(send) to Afriac by our government to help the people there every year.
1.asks 2. are sent
3.She often_______(look ) up new words in the dictionary.It’s a good habit.
4.I will call you as soon as I_______(get) the ticket to the football match.
5.---Hurry up! We _______ (wait) for you at the age.
---I’m sorry. I’m comi