一般现在时的用法小结及练习.doc

一般现在时的用法小结及练习定义: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的时态。构成：一般现在时用行为动词的原形，但第三人称单数作主语时，动词的词尾要加-S或-es,以辅音字母加“y”结尾的词，要把“y”变为“i”再加“es”，以“o s x ch sh”结尾的词加“”，动词的变化形式是am is are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。 时间状语： every, sometimes, usually often once a week on sundaysI leave home for school at 7 every morning.Sometimes,he plays baskateball with his father.She usually goes to school at 7:00.We often visit that old teacher on Sundays.2)客观真理，客观存在，科学事实。The earth moves around the sun.Shanghai lies in the east of China.3)表示格言或警句中。Pride goes before a fall.骄者必败。No man but errs注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round.4)现在时刻的状态、能力、性格、个性。I dont want so much.Ann Wang writes good English but does not speak well.比较：Now I put the sugar in the cup.I am doing my homework now.第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。再如：Now watch me, I switch on the current and stand back.第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：一、人称代词he, she, it是第三人称单数。如：He likes watching TV.他喜欢看电视。She has lunch at twelve.她十二点吃午餐。It looks like a cat.它看起来像只猫。二、单个人名、地名或称呼作主语；是第三人称单数。如：Han Mei looks like her mother.韩梅看起来像她的母亲。Beijing is in China.北京在中国。Uncle Wang often makes cakes.王叔叔经常做蛋糕。三、单数可数名词或this / that / the+单数可数名词作主语时，是第三人称单数。如：A horse is a useful animal.马是有用的动物。This book is yours.这本书是你的。That car is red.那辆小汽车是红色的。The cat is Lucys.这只猫是露茜的。四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：Everyone is here.大家到齐了。There is something wrong with the watch.这块手表有毛病。This is a pen.这是一支钢笔。That is an eraser.那是一块橡皮擦。五、不可数名词作主语时为第三人称单数。如：The milk is in the glass.牛奶在玻璃杯里。The bread is very small.那面包很小。六、当数字或字母作主语时，看作第三人称单数。如：6 is a lucky number. 6是个吉利数字。I is a letter. I是个字母。巩固练习题：I.写出下列动词的相应形式：1.第三人称单数：wash_ match _guess_ study_ finish_ go_ snow_ carry_ 2.写出下列动词的过去式：stop_ see_ drive _let_ carry_ keep_ join_ find_ think_ teach_ catch_ 3.写出下列动词的现在分词形式：stay_ begin_ forget_ forget_ lie_ die _ run_ prefer_ give_ ring_ dance_ hope_ II.用所给动词的适当形式填空：1I _(write) to you as soon as I _(get) to London. 2. He doeant feel well and _(not eat) any food this morning. 3. He _ not _(see) me come in, for he _(read) something with great interest. 4. I _(l;et) you have the book as soon as I _(finish) it. 5. While we _(wait) for our teacher, a little boy _(run) up to us. 6. Dont make a niose. Grandpa _(sleep). 7.Its seven now, Toms family_(watch) TV. 8. It _(take) me two hours to finish my homework last night. 9. What _ your mother _(do) at eight yesterday evening? She _(wash) clothes. 10. _ it _ (rain) when school was over yesterday? 11. What _(do) _ tomorrow? We _ (play) football. 12. There _ (be) a football match on TV this evening. 13. They said they _ (visit) the Great Wall the next summer holiday. 14. Who _ (dance) the best in your class? 15. Will you come if he _ (not come)? 16. The teacher told us the earth _ (move) round the sun. 17. They _ (have) a party in the garden if it _ (not rain) tomorrow. 18 She _ (buy) a sweater yesterday. 19. I dont know if Mr.Wang _ (go) to Shanghai tomorrow. If he _ (go), I _ (ask) him _ (take) some books to my daughter, because she _ (study) there. III单项选择：1.The students will go to the Summer Palace if it _ tomorrow. A.dont rain B. doesnt rain C. wont rain 2. There _ an English film next week. A. will have B. is going to have C. is going to be D. was going to be 3. The picture _ nice. A. looks B. is looked C. look D. is looking 4. She _ down and soon fell asleep. A. live B. lain C. laid D. lay 5. They _ the office at nine yesterday morning. A. reached to B. arrived C. went D. get to 6. We shall go to Shanghai on business before you _ back next week. A. wil come B. came C. would come D. come 7. Dont smoke until the plane _ off. A. takes B. took C. was taken D. is take 8. I saw her _ the room this morning. A. to enter() B. entered C. enter D. enters 9.the teacher asked us _ to school on time. A. to come B. coming C. come D. comes 10. John is always _ others. A. help B. helping C. helps D. to help 11. He told us _ at eight. A. working B. to work C. work D. worked 12. Youd better _ at home and _ your homework. A. to stay, do B. stay, do C. to stay, to do D. stay, to do 13. He sat down _ a rest. A. having B. h