英语三级语法精讲.ppt
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英语三级语法精讲 时 态 1、一般现在时:1)表示现在经常或反复发生的动作或存在的状态,常和often, always, usually, sometimes, everyday等时间状语连用。e.g. They go and visit their mother every other week.2)表示主语的特征、性格、能力等。e.g. Mr. Smith dislikes fish and never eats any.3) 表示客观事实或普遍真理。e.g. The earth is orbiting around the sun. 4) 表示安排或计划好的将来要发生的动作。e.g. The plane takes off at 10 am. 5) 在时间或条件状语丛句中,表示将来的动作。e.g. When you see her, just tell her that I am all right. 一般过去时 表示过去某时发生的动作或状态,常和表示过去的时间状语连用,如yesterday, last week, three years ago, in 1987等。e.g. He often came to help with my writing in 1987. 表示过去的习惯性动作。特别是常用used to 和would 来表示。 在表示时间或条件的状语从句中代替过去将来时。e.g. They said they would let us know if they heard any news about him. 一般将来时 表示将来打算进行或期待发生的动作或存在的状态。表示将来的谓语结构有: will/shall do be going to be about to be to do 在时间或条件状语从句中,一般不用将来时,而是用现在时代替将来时。e.g. I’ll let you know the result when I finish everything. 过去将来时 表示过去某一时间内,将要发生的动作或存在的状态。e.g. He told me that he would meet me at the airport. 表示过去某时间内计划、打算或一定要进行的动作:was/were going to was/were about to was/were to e.g. They were going to have a meeting to discuss the pollution in this city. 现在进行时 表示现在正在进行的动作。e.g. They are discussing how to do a good job of sales promotion. 有些动词(如:go, come, stay, leave, start)的现在进行时形式也可以表示将来即将发生的动作。e.g. He is coming to see you tomorrow. 有些表示状态和感觉的动作通常不使用进行时态,如hate, like, love, believe, think, look, mind, have, seem, sound, smell, taste. 过去进行时 表示过去某一时刻或某段时间内正在进行的动作。e.g. He was making a long distance phone call to his friend in Australia from 10 to 11 last night. 与现在进行时类似,go, come, start, stay, leave等动词的过去进行时形式可以表示过去将要发生的动作。e.g. Mr. White told them that he was leaving for Singapore in a few days. 将来进行时 表示在将来的某一段时间正在发生的动作,或按计划在未来将要进行的动作。e.g. This time next week she will be working in the company. 现在完成时 表示从过去开始,但持续到现在的动作,或表示过去发生的动作,但对现在仍留有某种后果和造成影响。e.g. He has paid his income tax. I have not seen the old man since 2003. 过去完成时 表示过去某个时间或某个动作之前已经完成的动作,或者表示过去某个时间开始一直延续到过去另一个时间的动作。e.g. He said th
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