
初中一般现在时用法及练习.doc
30页一般目前时专项解说1.概念:一般目前时表达常常的、习惯性的动作或存在的状态一般目前时表达目前常常反复发生的动作、存在的状态或习惯性的动作的时态可概括为①常常性或习惯性动作;②长期存在的特性或状态;③普遍真理、客观事实等 2.构成:一般目前时的构成重要有两种形式,一般目前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 (1)be型:句子的谓语动词只有be(am,is或are): a.肯定句中,只浮现be,如: I am a student.我是一名学生 b.否认句中,要在be背面加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,只浮现实义动词,如: I get up in the morning.我上午起床。
b.否认句中,要在实义动词前面加do(does)+not,do(does)作助动词,自身无意义,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, 一般目前时的用法 1) 常常性或习惯性的动作,常与表达频率的时间状语连用 时间状语: every…, sometimes, often, usually, always, at…, on Sunday I leave home for school at 7 every morning. 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) 表达格言或警句中。
Pride goes before a fall. 骄者必败 注意:此用法如果出目前宾语从句中,虽然主句是过去时,从句谓语也要用一般目前时 例:Columbus proved that the earth is round..4) if 条件句或when等时间状语从句主将从现 第三人称单数的用法在一般目前时中,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但有些同窗们对于哪些主语是第三人称单数还不十分清晰,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. 她喜欢看电视 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: ①Han Mei looks like her mother. 韩梅看起来像她的妈妈②Beijing is in China. 北京在中国③Uncle Wang often makes cakes. 王叔叔常常做蛋糕三、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:①A horse is a useful animal. 马是有用的动物②This book is yours. 这本书是你的 ③That car is red. 那辆小汽车是红色的 ④The cat is Lucy's. 这只猫是露茜的四、不定代词someone, somebody, nobody, everything, something等及批示代词this, that作主语时,是第三人称单数如:①Everyone is here. 人们到齐了②There is something wrong with the watch. 这块手表有毛病③This is a pen. 这是一支钢笔④That 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: ①The milk is in the glass. 牛奶在玻璃杯里 ②The 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: ①"6" is a lucky number. "6"是个吉利数字 ②"I" is a letter. "I"是个字母。
六、变化规则 V+s; -ch,-sh,-s,-x,-o+es; -辅音字母+y---y变i+es巩固练习题:写出下列动词的第三人称单数形式 1. work__________ read__________ clean__________ write__________ 2. teach__________ wash__________ guess__________ watch__________ pass __________ ﻩfix __________ ﻩ3. go__________ do___________ 4. study__________ fly__________ cry__________ play__________ carry __________ 5. have__________ 一般目前时疑问、否认句专练一、写出下列动词的第三人称单数形式 work__________ do___________ fly__________ cry__________ teach__________ carry __________ wash__________ read__________ clean__________ pass __________ ﻩfix __________ﻩ write__________ ﻩ guess__________ ﻩ watch__________ go__________ study__________ play__________ ﻩﻩhave__________ 二、把下列句子改为疑问句、否认句1. He often has dinner at home. _________ he often _________ dinner at home? He_________ often _________ dinner at home. What _________ he often _________ at home?2. Daniel and Tommy are members of the Reading Club. _________Daniel and Tommy members of the Reading Club?Daniel and Tommy_________ members of the Reading Club. 3. She and I take a walk together every evening. _________ she and _________ take a walk together every evening? She and I _________ _________ a walk together every evening. How often_________ she and _________ take a walk together ?4. There is some water in the bottle. _________there _________ water in the bottle.?There ________ _________ water in the bottle. 5. We watch TV on weekdays. _________ _________ watch TV on weekdays.?We _________ _________ TV on weekdays. What _________ _________ on weekdays.?6. Nick does his homework on Sundays. _________Nick _________ his homework on Sundays?Nick _________ _________ his homework on Sundays. What _________Nick _________ on Sundays?7. T hey like reading._________ they _________reading?T hey _________ _________ reading.8. She likes the black bag very much . _________ she _________ the black bag very much ? She _________ _________ the black bag very much . What _________ she _________ very much ? 9. My parents read newspapers every day?_________ _________ parents read newspapers every day? My parents _________ _________ newspapers every day. How often_________ _________ parents read newspapers?10. The girl teaches us English on Sundays. _________the girl _________ _________ English on Sundays?The girl _________ _________ _________ English on Sundays.What_________the girl _________ _________ on Sundays?11. My classmate knows the man on the bike . _________ _________ classmate _________ the man on the bike ? My cl。
