初中英语复习主要时态PPT课件_531422.ppt

(1) 一般现在时 经常性动作等。常与everyday, often, always, once a week, seldom, usually等连用。 She always goes to school by bus. 真理和事实。 Light travels faster than sound. 在由when, if, before, as soon as, unless等引导的时间状语从句和条件状语从句中，用一般现在时代替一般将来时。 When I grow up， I will be a soldier.（主将从现） 动作正在发生，用在由here, there等开首的句子中，表示现在正在发生。 There goes the bell. 表示主语的习惯特征，性格，能力等。 He studies very hard. 一般的说明文字等。 The book says that women can live longer than men. (2)一般过去时 1.表示过去的某个时间发生的动作或存在的状态，常和明确的时间状语 连用。 （或有上下文语境暗示） She went out just now. I saw him yesterday. 2.表示过去经常发生的动作。 Last month she worked eleven hours every day. He used to get up early. 3.表示两个紧接着发生的动作，常由以下词语连接，用一般 过去时。如：but, and, when, as soon as, immediately, the moment, the minute。 The moment she came in, she told me what had happened to her. He bought a watch but lost it. (3)一般将来时 ①表示未来的动作或状态常用will / shall + 动词（常与表示将来的时间状语边用如tomorrow、next week等）。 He will visit shanghai next week. ②表示一种趋向或习惯动作。 We’ll die without air or water. ③表示趋向行为的动词如come、go、start、begin、leave等词常用进行时的形式表示将来时。 My uncle is coming form America. ④be going to与will / shall, be to do, be about to do用法及区别： be going to 表示现在打算在最近或将来要做某事，这种打算往往经过事先考虑，甚至已做了某种准备； shall / will do表示未事先考虑过，即说话时临时作出的决定。 (4) 过去将来时 参照一般将来时对比： would do、was / were going to do sth.表过去将来； come、go、leave等过去进行时表过去将来时； was / were to do sth.和was / were about to do sth.表过去将来。 (5) 现在进行时 表示正在进行的动作。 What are you doing now? 表示即将发生的动作. She is leaving tomorrow. 表示现阶段正在进行的动作. More and more people are giving up smoking. 表示反复发生的或习惯性的动作,常表示不满,抱怨,赞赏等. She is always finding fault with others. (6) 过去进行时 1. 过去某一时刻在进行的动作．经常需要表示过去的时间状语． This time yesterday, they were having lunch. 2.过去进行时常与一般现在时配合，互为时间背景． I was writing a letter when he came. The telephone rang while she was washing. 3.过去反复的动作，常同always, frequently, continually等连用． They were frequent