时态大方向课件幻灯片.pptVIP

一、时态的基本构成 1、关于时态(A,B). 2、能说出基础八种时态. 3、能看句子判断时态(时间状语）. 4、能结合基本构成造句子. 二、时态在的句型上的转换 能写出各种时态的一般否定句、疑问句。 1、A,夯实基础，建立清晰的各时态的时间概念。 将时间轴分为三个区分点：过去（Past）、现在（Now）和 将来（Future），而“Past”又可以细分为“Ago”（相对于“Now”的过去时间）和“Before”（相对于“Ago”的过去时间，即过去的过去）两个小的时间点. 　　 B.英语动词的时态表示两个概念的范畴： 1. 时间：即动词的行为或状态是发生在现在、过去或将来，故英语动词有现在时态、过去时态和将来时态。 2. 状态：即动词的行为或状态经常发生、正在发生或已经发生，故有一般式、进行式、和完成式。一般式表示行为和状态经常发生或出现，进行式表示行为或状态正在发生或出现，而完成式则表示v.或状态已发生或完成。 下面以work为例,列出下列时态： 形式 时间 一般式 进行式 完成式 现在 过去 将来 过去将来 work/works am/is/are working have/has worked worked was working had worked will work would work 八种基本时态比较 时态 动词基本结构 常用时间状语 例句 一般现在时 He often plays basketball on Sunday. 一般过去时 He played basketball yesterday. 现在进行时 He is playing basketball now. 过去进行时 He was playing basketball at nine yesterday afternoon. 动词原形 动词第三人称单数 动词过去式 (-ed或者不规则变化） am, is , are +v-ing was ,were +v-ing usually/Often every day /morning always/ sometimes yesterday/ the other day/last night/ …ago Now, at the moment at this time yesterday, at five o’clock yesterday 一般将来时 He will play basketball with us next Sunday. 过去将来时 He said he would play basketball next Sunday. 现在完成时 He has played basketball since he was 9 years old. 过去完成时 He had played basketball before he finished his homework. will/shall+v原形 be going to +v原形 later, soon, in a month, next time, from now on, tomorrow would +v原形 （常用于宾语从句和间接引语中） has/have+ 动词过去分词(-ed,不规则变化) since+时间点 for+时间段 already, even，jet had+动词过去分词 过去的过去（两个动词比较） 如何判断时态 考虑两个基本观念： 1)该动词发生的时间是过去、现在还是将来？ 2)该动词的动作到某一时间已经完成？或还在进行？ 判断下面句子的时态 He always runs in the morning. The sun rises in the east and sets in the west. He worked as a teacher 5 years ago. I was reading while my mother was cooking. 一般现在时 一般现在时 一般过去时 过去进行时 The train is coming. He will visit his friend tomorrow. He has been a doctor since 1996. When I got to the cinema, the film had already started. 现在进行时 一般将来时 现在完成时 过去完成时 They were waiting for you