英语四大时态复习-课件ppt课件.ppt

1、. 在英语中，在英语中，不同时间不同时间发生的动作发生的动作或存在的状态要用或存在的状态要用不同的动词形式不同的动词形式来来表现。表现。 每种时态的概念、信息词、每种时态的概念、信息词、结构、句式变化、以及某些时态结构、句式变化、以及某些时态间的相互区别间的相互区别重点掌握重点掌握时态时态Tense.时态时态现在进行时：现在进行时：一般现在时：一般现在时：一般过去时：一般过去时：现在或现阶段正在现在或现阶段正在进行进行的动的动作作 . We are learning English class now.经常经常或或习惯性习惯性的动作或存在的动作或存在的状态。客观规律的状态。客观规律, 真真理理

2、The sun rises in the east.过去过去某个时间或时间段发生某个时间或时间段发生的动作或存在的状态。的动作或存在的状态。I watched TV last night.一般将来时：一般将来时：将来将来某一时刻的动作或状某一时刻的动作或状态，或将来某一段时间内态，或将来某一段时间内经常的动作或状态经常的动作或状态 .I will go to college.be+v-ing(现在分词）现在分词）V -原形原形V-s/es三单三单V-ed(过去式）过去式）will +V-原形原形be going to +V原形原形1.w M1 四种基本时态四种基本时态w 1. Listen !

3、 A boy is an English song. A sing B. singing C.sang D.singsw 2.All the students _ trees last week. A. are planting B. planted C. plant D. will plant w 3.There _ an English film next week. A. is B. be C. are D. is going to bew 4.On Sunday I usually basketball . Aplayed B. plays C. play D. playingw 5.

4、 It _me two hours to finish my homework last night. Aspent B. cost C. pay D. took.各时态常用的信息词现在进行时：一般现在时:一般过去时: now , Look! Listen! at this time Where is ? Dont talk! Its 8:00am. always , usually, often, sometimes ,seldom, never, every day, every ,three times a day last night, last, two days ago, ago,

5、 in 1999, just now =a moment ago, yesterday一般将来时:tomorrow， next week； next in the future ，in 2050 ， in +一段时间一段时间2.判断下列信息词是属于哪种时态判断下列信息词是属于哪种时态now现在进行时in 1897Listen!last nightthree times a weekalwaystwo years agooftenyesterdayLook!every day一般现在时一般过去时一般将来时tomorrowin th futurein five minutes 对比对比时态时态肯定

6、句肯定句否定句否定句一般疑问句一般疑问句现在进行现在进行时时 一般现在一般现在时时一般过去一般过去时时一般将来一般将来时时表格对比学习表格对比学习be+v-ing(现在分词）现在分词）在在be 后加上后加上not Be提到句首提到句首V -原形原形V-s/es三单三单在实义在实义v.前用助动词前用助动词dont ,doesnt，行，行为动词要为动词要还原还原Do,Does 提提到句首，实到句首，实义动词还原义动词还原V-ed(过去式）过去式）在实义在实义v.前用助动前用助动词词didnt，实义动，实义动词还原词还原Did 提到句提到句首，实义首，实义动词还原动词还原will后加上后加上not

7、= wontbe后加上后加上 not = isntwill +V-原形原形be going to +V原形原形Will 或或be提提到句首到句首3He is a teacher.2. Kangkang comes from China.3. I usually take the bus to work.4.They are having classes.5.Jane played the guitar last night.先变（一般疑问句）先变（一般疑问句） 再变（否定句）再变（否定句）Is he a teacher?He isnt a teacher.Does Kangkang come

8、from China?Kangkang doesnt come from China.Do you usually take the bus to work?I dont usually take the bus to work.Are they having classes?They arent having classes.Did Jane play the guitar last night?Jane didnt play the guitar last night.句型变化操练句型变化操练.现在分词现在分词 的构成：的构成：动词第三人称动词第三人称单数的构成：单数的构成：过去式过去式的

9、构成：的构成：直接加直接加-ing.重读辅元辅，双写尾字母加重读辅元辅，双写尾字母加-ing.以以e 结尾去结尾去e加加-ing .直接加直接加-s.以以s, x, ch, sh, o结尾加结尾加-es.以以“辅音辅音+y “结尾变结尾变y 为为i再加再加-es.直接加直接加-ed.以以e结尾只加结尾只加d.重读辅元辅，双写尾字母再加重读辅元辅，双写尾字母再加-ed.以以“辅音辅音+y”结尾变结尾变y 为为i 再加再加-ed.不规则变化，参考不规则变化，参考120页页4. have - look - begin- use- shop- get- dance- study-现在分词第三人称单数过

10、去式study-finish-have-go-do-play-watch-give-need-stop-hope-play-try-plan-visit-like- having looking beginning using shopping getting dancing studying studies finishes has goes does plays watches gives needed stopped hoped played tried planned visited liked.过去式的不规则变化过去式的不规则变化 blow - buy - can - come- d

11、o - eat - fall - find - forget - get - give- go - have- know- learn - make - meet - read - run - say - see - send- sit - take- think- will - tell - begin - teach - catch - blew bought could came did ate fell found forgot got gave went had knew learnt made met read ran said saw sent sat took thought

12、would told began taught caught .用所给动词的适当形式填空。用所给动词的适当形式填空。1. Listen! Mary _ ( sing) now.2. A young man _ (run) on the playground now.3. My mother _(watch) TV play every day.4. Old Bush _(visit) China again last month.5. I _ (play) sports three times a day.6. Look! Lucy and Lily _(read) books.7. Ther

13、e _(is) a football match yesterday afternoon.8. Our class _( go) to the zoo three days ago.9.We _(finish) our homework in two hours.10. She is going _(play) ping-pong with us. is singing is running watches visited play are reading was wentwill finish to play.判断时态形式判断时态形式：He always likes playing the

14、piano.( )We are having an English classes now.( )They often go home late.( )Lucy is going to dance tomorrow.( )I liked go to the zoo when I was young.( )Mr Li will go to another school next year.( )Look! They are playing football.( )She was born in 1990.( )I lost much money last night.（ ）A.现在进行时 B.一般现在时C.一般过去时 D一般将来时ABCABDCCD.改一般疑问句的方法：改否定句的方法：首先看有无be或情态动词，如果有，将be提到句首并大写，句末打问号.如果没有be或情态动词，看原句的动词形式来决定借用助动词do/does/did,并且实义动词要还原。V-原形V-s/esV-ed(过去式)+动词原形?以此类推首先看有无be动词，如果有，在be 动词后面加not.如果没有be 动词，看原句的动词形式来决定借用助动词do/does/did,并在后面加not,并且行为动词要还原。主语+dont/doesnt/didnt+动词原形DoDoesDid