初一常用英语时态讲稿.ppt

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1、关于初一常用英语时态第一页，讲稿共十六页哦 在英语中，在英语中，不同时间不同时间发生的动作或存发生的动作或存在的状态要用在的状态要用不同的动词形式不同的动词形式来表现。来表现。每种时态的概念、信息词、结构、每种时态的概念、信息词、结构、句式变化、以及某些时态间的相互区句式变化、以及某些时态间的相互区别别重点掌握重点掌握时态时态Tense第二页，讲稿共十六页哦时时态态现在进行时：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：现在正在现在正在进行进行的动作的动作 经常经常或或习惯性习惯性的动作的动作或存在的状态。或存在的状态。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

2、在的状态。的动作或存在的状态。(The Present Continuous Tense)(The Simple Present Tense)(The Simple Past Tense)第三页，讲稿共十六页哦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,ag

3、o,in 1999,in+过去过去的年份的年份,just now=a moment ago,yesterday,yesterday morning 第四页，讲稿共十六页哦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,in 1999,in+过去过去的年份

4、的年份,just now=a moment ago,yesterday,yesterday morning 第五页，讲稿共十六页哦改一般疑问句的方法：改否定句的方法：首先看有无be动词，如果有，将be提到句首并大写，句末打问号.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,并且行为动词要还原。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D

5、oDoesDid第六页，讲稿共十六页哦现在分词现在分词 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.第七页，讲稿共十六页哦 对比对比时态时态动词形式

6、动词形式否定句否定句一般问句一般问句现在进现在进行时行时 一般现一般现在时在时一般过一般过去时去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 后后加上加上not Be提到提到句首句首V-原形原形V-三人单三人单在行为在行为v.前借用前借用do,does后加后加not，行，行为动词还原为动词还原Do,Does 提提到句首，行到句首，行为动词还原为动词还原V-ed(过去式）过去式）在行为在行为v.前借用前借用did后加后加not，行，行为动词还原为动词还原Did 提到句提到句首，行为动首，行为动词还原词还原第八页，讲稿共十六页哦 对比对比时态时态动词形式动词形式否定句否

7、定句一般问句一般问句现在进现在进行时行时 一般现一般现在时在时一般过一般过去时去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 后后加上加上not Be提到提到句首句首V-原形原形V-三人单三人单在行为在行为v.前借用前借用do,does后加后加not，行，行为动词还原为动词还原Do,Does 提到句首，提到句首，行为动词行为动词还原还原V-ed(过去式）过去式）在行为在行为v.前借用前借用did后加后加not，行，行为动词还原为动词还原Did 提到句提到句首，行为动首，行为动词还原词还原第九页，讲稿共十六页哦判断时态形式判断时态形式：1.He always like

8、s playing the piano.()2.We are having an English classes now.()3.They often go home late.()4.Lucy danced the disco at the party last night.()5.I liked go to the zoo when I was young.()6.My teacher is friendly to us.()7.Look!They are playing football.()8.She was born in 1990.()9.I lost much money las

9、t night.（）A.现在进行时B.一般现在时C.一般过去时ABCABBCCC第十页，讲稿共十六页哦 have-look-begin-use-shop-get-dance-study-现在分词第三人称单数过去式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 give

10、s needed stopped hoped played tried planned visited liked第十一页，讲稿共十六页哦1.He 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（一般疑问句）再（否定句）Is he a teacher?He isnt a teacher.Does Kangkang come from China?Kangkang doe

11、snt 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.句句型型变变化化操操练练第十二页，讲稿共十六页哦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 youn

12、g 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.There _(is)a football match yesterday afternoon.8.Our class _(go)to the zoo three days ago.is singing is running w

13、atches visited play are reading was went第十三页，讲稿共十六页哦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 last night now every day Look!yesterday often Listen!two years ago alwaysin 1897 three times a week 一般现在时一般过去时现在进行时第十四页，讲稿共十六页哦过去式的不规则变化过去式的不规则变化 blow-buy-can-come-do-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 would told began taught caught 第十五页，讲稿共十六页哦感感谢谢大大家家观观看看4/1/2023第十六页，讲稿共十六页哦