上海高考英语｜高考英语语法全掌握之代词：动词的时态和历届高考试题分析

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上海高考英语｜高考英语语法全掌握之代词：动词的时态和历届高考试题分析

4. 过去将来时的用法(would do) 过去将来时表示从过去的某个时间看来将要发生的动作或存在的状态。
例如：They were sure that they would succeed.
5.现在进行时的用法（am/is/ are doing）
1）现在进行时表示现在正在进行的动作 What are you doing?
2）表示某种感情色彩总是 You are always watching TV. (was/were doing)
6.过去进行时的用法
1）过去进行时过去某一时刻、某一阶段正进行的动作
例如：In 1980 he was studying in a university. He was reading a novel when I came in. He was watvign Tv at this time yesterday.
7. 将来进行时（will be doing）表将来某一时刻，某一段时间正在进行的动作。
例如： I will be sleeping at this time tomorrow.
8. 现在完成时(have/has done)
1）现在完成时所表示的动作在说话之前已完成，但对现在有影响。句中没有具体时间状语。
例如： He has gone to fuzhou. He has been to fuzhou.
2) 现在完成时所表示的动作开始于过去，持续到现在，也许还会持续下去，for 和 since 表示一段时间的状语或 so far , now, today, this week (month, year ,), 等表示包括现在内的状语。 in
the past 3 years 等表示包括现在内的状语。
例如：He has studied english for 5 years. He has studied english since 1985. Now I have finished the work. 注意：表示短暂时间动作的词（如 come, go , die, marry, buy 等）的完成
时不能等连用。与 for, since 等连用。
3）现在完成进行时还可用时间和条件状语从句中，表示将来某时完成的动作。
例如：Ill go o your home when I have finished my homework. If it has stopped snowing in the morning, well go to the park.
9．过去完成时的用法（had done）
1）过去完成时由had + 过去分词构成。过去完成时的动作表示过去某一时刻或某一时刻或某一动作之前完成的动作或状态。句中常用 by, before, until,when 等词引导的时间状语。
例如：By the end of last year we had built five new houses. I had learnt 5000 words before i entered the university.
2) 过去完成时的动词还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去。
例如：Before he slept, he had worked for 12 hours.
10．将来完成时（will have done）
11.现在完成进行时 ( have (has)+ been +（doing）)，现在完成进行时表示现在以前一直进行的动作。有些动词（work, study, live, teach 等）用现在完成时与用现在完成时意思差不多。
例如：I have worked here for three years. I have been working here for three years. 但多数动词在这两种时态表示不同意思 I have been writing a letter.