英语时态

2023-10-13 05:33| 来源: 网络整理| 查看: 265

一、一般现在时 (be;do/does) 1.概念：表示现在发生的动作、情况、状态和特征。经常性、习惯性动作。标志词：often, sometimes, usually, always, occasionally等和时间状语如 in the evening, at night, twice a month, on Sundays, every day/week/month/year,等。用法：（1）.客观事实和普遍真理。 The earth runs around the sun. （2）表示一个按规定、计划或安排要发生的动作，（仅限于某些表示“来、去、动、停、开始、结束、继续”等的动词）可以与表示未来时间的状语搭配使用。常见的用法是：飞机、火车、轮船、汽车等定期定点运行的交通方式。

The next train leaves at 3 o'clock this afternoon. 下一趟火车今天下午3点开车。 How often does this shuttle bus run? 这班车多久一趟？（3）在由 when, after, before, until, till, as soon as,等引导的时间状语从句或由if, so/as long as, once, even if, although, whether…or…, in case, whatever, whenever, wherever 等引导的条件状语从句中，通常用一般现在时代替一般将来时（主将从现）。 When you have finished the report, I will have waited for about 3 hours. 等你完成这份报告的时候，我就已经等了将近3个小时了。二、一般过去时 1.概念：表示过去某个时间发生的动作或情况。 2.标志词：yesterday, last year, last night, the other day, just now, then, two days ago, in , at that time等。（有时句子中虽然不含表示过去时间的状语，但根据语境可判断动作或状态已经发生，而且与现在没有任何联系，也需用一般过去时。）三、一般将来时（will / shall do。）用法： going to do：打算去……，要…… This is just what I am going to say. 这正是我想说的。 about to do：即将、正要，强调近期内或马上要做的事。例：Don't worry, I am about to make a close examination on you. 别担心，我马上就给你做一次仔细的检查。 3."be to do"：按计划、安排即将发生某事或打算做某事。 (客观安排，人为安排) 例：She is to be seen in the lab on Monday. 星期一你准会在实验室见到她。 5) 有些动词，如：arrive, be close, come, do, done, go, have, leave, open, play, return, sleep, start, stay等，用于一般进行时，并且通常与一个表示将来时间的时间状语连用，可以表示将来时。例：My mother is coming to visit me next week.（我妈妈下周将来看我。）四、现在进行时(be doing) 概念：现在正在进行的动作。标志词：now, at this moment, look, listen, 五、过去进行时(was/ were doing) 概念：强调在将来的某个具体时间正在发生的动作或事情。例：Don't worry, you won't miss her. She will be wearing a red T-shirt and a white skirt at that time. 别担心，你不会认不出她的。她到时会穿一件红色的T恤衫和一条白色的短裙。注意事项：由于本时态是由将来时和进行时融合在一起的，所以关于本时态的注意事项，可参考"一般将来时"和"现在进行时"的有关注意事项。六、现在完成时(have done) 概念：1.表示某动作发生在过去，强调其对现在的影响。此时用短暂性动词。标志词：already, just, yet, never, before, 2. 表示某动作从过去某时刻开始，持续到现在。此时用延续性动词。标志词：lately, recently, in the past/last few days/years, since then, up to now, so far; since+时间点；for+时间段；

时态习题：

1. While we __________ (wait) for the bus, a girl __________ (run) up to us.

2. I __________ (telephone) a friend when Bob __________ (come) in.

3. Jim __________ (jump) on the bus as it __________ (move) away.

4. We __________ (test) the new machine when the electricity __________ (go) off.

5. She __________ (not want) to stay in bed while the others ________________ (all, work) in the fields.

6. While mother ________ (put) Cathy to bed, the door bell ________ (ring).

7. As I __________ (walk) in the park, it __________ (begin) to rain.

8. Even when she ___________ (be) a child she ________________ (already, think) of becoming a ballerina (芭蕾舞演员).

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英语时态

英语时态

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