一般现在时的讲解以及练习题
一、 定义:一般现在时表示经常或习惯性的动作,也可表示现在的状态或主语具备的性格和能力。
例:(1).表示事物或人物的特征、状态。The sky is blue.天空是蓝色的。
(2).表示经常性或习惯性的动作。I get up at six every day.我每天六点起床。
(3).表示客观现实。The earth goes around the sun.地球绕着太阳转。
二、一般现在时常用时间状语、时间副词
In the morning/afternoon/evening,every week (day, year, month…)
on Sundays (Monday,),always总是, usually通常, often经常, sometimes有时,
三、用法:
1.肯定句:
(1) 句中有be(am,is,are)和情态动词时,
① be动词时,主语是I时要用am,主语是you和复数时要用are,其他用is。
② 是情态动词时,后面的动词用原型
(2)谓语为行为动词时:
主语为第三人称单数(she ,he ,it )、单数可数名词、不可数名词的,动词要按规则加上s或es;主语是复数可数名词的肯定句,动词用原形。
例:①She(He, It )likes dogs. 她(他,它)喜欢狗。(主语为第三人称单数)
They go to school every day .他们每天都去上学。(主语是复数可数名词的,动词用原形)
注意的问题:第三人称单数以及第三人称单数时动词的变化规则
在一般现在时中,当主语是第三人称单数时,行为动词要用第三人称单数形式,即常在动词原形后加-s或-es。
动词+s的变化规则
1.一般情况下,直接加-s,如:cook-cooks, make-makes,
2.以s. x. sh. ch. o结尾,加-es,如: wash-washes, watch-watches, go-goes
3.以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies
4.特殊的:have-has,
4.特殊疑问句:
特殊疑问词 + am/is/are + 相应的人称/ + 其他
do/does + 人称 + 动词原形 + 其他
What/Where/Who/When/Which/why/how/whose… + am/is/are + 相应的人称/名词 + 其他
What/Where/Who/When/Which/why/how/whose… + do/does + 相应的人称/名词+ 动词原形 + 其他
一、按照要求改写句子
1.This is my pencil . (变一般疑问句)
2. Mary does not have any books . (变肯定句)
3. She likes the black bag very much . (变为否定句)
4. I usually get up at seven o’clock . (用he改写句子)
5. He often has hamburger and apples for dinner . (变为一般疑问句)
二、be动词填空。
1. ________you Li Fen ? No, ________ not .
2. ________ Mr. green very busy? Yes , he ________.
3. He must ________ at home .
4. You and I ________ good friends .
5. His friends________ very funny .
6. The twins ________ very happy because they want to see a movie .
三.用所给动词的适当形式填空。
1. My classmate ________ (know) the man on the bike .
2. His sister usually ________ (go) to school at 7:00 am .
3. Lin Tao ________ (like) his new sweater .
4. Let me ________ (have) a look .
5. Let’s ________ (play) tennis !
6. He ________ (like) English .
7. I want ________ (go) to a movie .
8. He ________ (not know)the teacher’s name .
9. Nice ________ (meet) you !
11. ________ (sit) down and ________ (have) a cup of tea .
14. I need ________ (buy ) some new clothes .
15. She likes ________ (play) chess .
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