《初中八大时态复习ppt课件.ppt》由会员分享,可在线阅读,更多相关《初中八大时态复习ppt课件.ppt(33页珍藏版)》请在三一办公上搜索。
1、动词的时态,初中英语语法,一般现在时:Present Simple概念:表示习惯、经常性的动作结构:do、does标志语:usually、often、never、sometimes、once a week、twice a month、every year,一般现在时-句型变换,1)表示动作,一般人称作主语的,变否定句须在动词前加助动词dont。2)单三人称做主语的,变否定句须在动词前加助动词doesnt。,一般现在时 句型变换,变 否定句,变 一般疑问句,变 特殊疑问句,1)表示动作,一般人称作主语的,变一般疑问句须在句首加助动词do。2)单三人称做主语的,变一般疑问句须在句首加助动词does
2、。,1)表示动作,一般人称作主语的,变特殊疑问句句首须使用助动词does 2)单三人称做主语的,变特殊疑问句句首须使用助动词does。,注意:含有be动词的句式要在be上做变化.,一般现在时-句型变化,一般疑问句的句式变化可分为两种情况:1)表示动作,一般人称作主语的 变否定句须在动词前加助动词dont;变一般疑问句须在句首加助动词do。例如:They have lunch at 12:00.陈述句 They dont have lunch at 12:00.否定句 Do they have lunch at 12:00?一般疑问句,一般现在时-句型变化,2)三单人称做主语的 变否定句须在动词
3、前加助动词doesnt;变一般疑问句须在句首加助动词does。例如:Jenny speaks English very well.陈述句Jenny doesnt speak English very well.否定句Does Jenny speak English very well?一般疑问句,一般现在时-句型变化,3)含有be动词的要在be上做变化.Danny is a good student.陈述句Danny isnt a good student.否定句Is Danny a good student?一般疑问句 其时间状语为often(经常)、usually(通常)、always(总
4、是)、sometimes(有时)等频率副词,on Saturdays(在星期六)、in the morning(afternoon evening)(在早上(下午 晚上)、every day(每天)等。,The twins _(wash)the clothes every day.Sometimes he _(play)basketball over there.How often _ Sally _(sing)?,wash,plays,专项练习,一般过去时:Past Simple概念:表示过去发生的动作结构:did标志语:yesterday、.ago、in 1992、last week/mo
5、nth,动词-ed形式的构成:,moveddied,carriedcried,stoppedplanned,answered,got,drank,took,went,swam,ate,cut,were,had,did,came,said,saw,put,The twins _(wash)the clothes yesterday.The day before yesterday he _(play)basketball over there._ Sally _(sing)two hours ago?,washed,played,现在进行时:Present Progressive,概念:表示现在
6、正在发生的动作结构:be(is,am,are)+doing标志语:Look!、Listen!、now,动词-ing形式的构成:,writingtaking,gettingrunningswimming,asking,The twins _(wash)the clothes now.Look!He _(play)basketball over there.Listen!_ Sally _(sing)?,are washing,is playing,过去进行时:Past Progressive概念:表示过去正在发生的动作结构:be(was,were)+doing标志语:at 8:00 yester
7、day、when、while、,现在完成时:Present Perfect概念:表示已经发生的动作结构:has done、have done标志语:already、yet、ever、never、since、for、,got gotten,went gone,ate eaten,cut cut,were been,did done,said said,took taken,swam swum,drank drunk,put put,had had,saw seen,The twins _(wash)the clothes for an hour.He _(play)basketball sinc
8、e three years ago.How long _ Sally _(sing)yet?,have washed,has played,过去完成时:Past Perfect概念:表示将要发生的动作结构:had done标志语:by the time,或主句为 一般过去时的宾语从句中,一般将来时:Future Simple概念:表示将要发生的动作结构:will do、shall do、be(is、am、are)going to do标志语:tomorrow、in.、next,过去将来时:Past Future Simple概念:表示过去将要发生的动作结构:would do be(was、were)going to do标志语:常用于主句是一般过去 时的宾语从句中,get,got,will get,was reading,is knocking,does surf,have been,have heard,went,would put,Did happen,was doing,doesnt rain,will go,Do play,wont call,has worked,walked,had started,is,comes,is drawing,moved,didnt have,used,has,studies,will visit,Composition:I,