1、词性:动 词+时态2023初中英语一轮复习语法基础部分动词的分类一 动词的分类二 动词的词形变化三 动词的语法含实在的意义 They eat a lot of potatoes.表动作或状态 Im reading an English book now.在句中独立作谓语(一)动词的分类1.实意动词本身有一定的词义 His father is a teacher.be动词 感官动词 Twins usually look the same.(一)动词的分类2.系动词本身没有词义,不能独立作谓语,只和主要动词一起构成谓语动词;表否定、疑问、时态、语态等;有人称、单复数和时态的变化 (一)动词的分类3
2、.助动词He doent speak English.We are playing basketball.本身有意义,不独立作谓语,和动词一起构成谓语动词;情态动词没有人称和单复数的变化,有些情态动词有过去式。(一)动词的分类3.情态动词You can keep the books for two weeks.(二)动词词形变化1.原形过去式过去分词be(am,is)wasbeenloselostlostbe(are)werebeenmakemademadebeatbeat beatenputputput(三)动词的时态现在时现在时过去时过去时将来时将来时过去将来时过去将来时一般ask/ask
3、saskedshall/will askshould/would ask进行am/is/are askingwas/where askingshall/will be askingshould/would be asking完成have/has askedhad askedshall/will have askedshould/would have asked完成进行have/has been askinghad been askingshall/will have been askingshould/would have been asking1.一般过去时2.过去完成时3.现在完成时1.一
4、般将来时1.一般现在时2.现在进行时过去现在将来1.现在完成时2.过去完成时3.一般过去时6个基本时态过去(3)现在(2)将来(1)1.一般现在时2.一般进行时1.一般现在时例句They go to the Palace Museum once a year.They often discuss business in the evening.1.一般现在时(1)经常或习惯发生的动作或状态。The earth turns round the sun.Light travels faster than sound.(2)表示客观真理、事实、人的技能或现在的状态。The train for Hai
5、kou leaves at 8:00 in the morning.(3)表十分确定会发生或按照时间表进行的事情。Please ring me up as soon as you arrive in Germany.If it rains tomorrow,we will have to stay at home.(4)时间状语从句和条件状语从句,一般现在时代一般将来时。(1)常见时间状语(2)表过去的动作或状态2.一般过去式1.Little Tom broke the window at half past nine this morning.2.When he went into the
6、room,he saw a stranger talking with his father.3.He came to our city in the year 2000.例句will+动词原形am/is/are going to+动词原形am/is/are to+动词原形be about to+动词原形形式I will graduate from this school soon.Its going to rain soon.I am writing a long novel.4.现在进行时(1)be(am is are)+现在分词(2)表即将发生的动作,一般指近斯安排好的事情。What a
7、re you doing tomorrow?He is always borrowing money from me and forgetting all about it some time later.(3)表频繁发生或反复进行的动作,常与always等频度副词连用,以表示赞扬、不满或讨厌等感情色彩。“was或were+现在分词”时间状语用于宾语从句或时间状语从句中,表示与主句动作同时进行且是延续时间较长。5.过去进行时He was cooking supper this time yesterday.The little girl was playing with her toy whe
8、n I saw her.She was it happen when she was walking past.They sang a lot of songs while they were walking in the dark forest.例句6.现在完成时(1)表在过去开始一直延续到现在的动作或状态“have(has)+done”。(2)时间状语(3)状语从句。I have never seen such fine pictures before.He has just gone to England.I have been away from my hometown for thi
9、rty years.Uncle Wang has worked in the factory since it opened.例句(4)在完成时中,一个瞬间动词(一次性动作)不能与表示一段时间的状语连胜,此时须将该瞬间动词改为延续性动词或状态动词。瞬间性动词的完成时瞬间性动词的完成时延续性动词或状态动词的完成时延续性动词或状态动词的完成时Have(already)gone to Have been in/at.for(two years)Has come toHas been here since(1990)7.过去完成时(1)表示的时间是”过去的过去“;助动词had+动词的过去分词。(2)时
10、间状语(3)常用于宾语从句,after/before引导的从句中。They had already finished cleaning the classroom when their teacher came.The woman had left before he realized she was a cheat.After I had put on my shoes and hat,I walked into the darkness.He said that he had never seen a kangaroo before.例句8.过去将来时(1)should或would动词原形
11、。(2)在时间状语从句和条件状语从句中不用过去将来时。(3)表打算或主观认为的用was/were going to(+动词原形)。He promised that he would pay me a lot if I helped him with the project.Every time when he was free,he would sit down and read some books.She told me she would be 18 the next month.She told me that she was going to have a walk with her pet dog.例句