概要：1)I have just finished my homework.2)Mary has been ill for three days.(2)常与现在完成时连用的时间状语有：since, for, during, over等引导出的短语;副词already, yet, just, ever, now, before, often, lately, recently等;状语词组this week (morning, month, year), so far, up to now, many times, up to the present等。例如：1)I haven’t been there for five years.2)So far, she hasn’t enjoyed the summer vacation.3)There have been a lot of changes since 1978.(3)完成时态可用在下列结构中：This (That, It) is (was) the first (second&hellip
初中英语语法总结之时态,标签：九年级英语语法,http://www.kgf8.com1)I have just finished my homework.
2)Mary has been ill for three days.
(2)常与现在完成时连用的时间状语有：since, for, during, over等引导出的短语;副词already, yet, just, ever, now, before, often, lately, recently等;状语词组this week (morning, month, year), so far, up to now, many times, up to the present等。例如：
1)I haven’t been there for five years.
2)So far, she hasn’t enjoyed the summer vacation.
3)There have been a lot of changes since 1978.
(3)完成时态可用在下列结构中：
This (That, It) is (was) the first (second…) time +定语从句;This (That, It) is (was) the only (last) + n +定语从句;This (That, It) is (was) +形容词最高级+ n +定语从句。如果主句的谓语动词是一般现在时，从句的谓语动词通常用现在完成时;如果主句谓语动词是一般过去时，从句谓语动词通常用过去完成时。例如：
(1)This is one of the rarest questions that have ever been raised at such a meeting.
(2)There was a knock at the door. It was the second time someone had interrupted me that evening.
2.过去完成时
(1)表示过去某时间前已经发生的动作或情况，这个过去的时间可以用by，before等介词短语或一个时间状语从句来表示;或者表示一个动作在另一个过去动作之前已经完成。例如：
1)We had just had our breakfast when Tom came in.
2)By the end of last year they had turned out 5, 000 bicycles.
(2)动词expect, hope, mean, intend, plan, suppose, wish, want, desire等用过去完成时，表示过去的希望、预期、意图或愿望等没有实现。例如：
I had meant to take a good holiday this year, but I wasn’t able to get away.
另外两种表示“过去想做而未做的事”的表达方式是：
1)was / were + to have done sth,例如：
We were to have come yesterday, but we couldn’t.
2)intended (expected, hope, meant, planned, supposed, wished, wanted, desired) + to have done sth,例如：
I meant to have told you about it, but I forgot to do so.
(3)过去完成时常用于以下固定句型：
1)hardly, scarcely, barely + 过去完成时+ when + 过去时。例如：
Hardly had I got on the bus when it started to move.
2)no sooner +过去完成时+ than +过去时。例如：
No sooner had I gone out than he came to see me.
3)by (the end of ) +过去时间，主句中谓语动词用过去完成时。例如：
The experiment had been finished by 4 o’clock yesterday afternoon.
3.将来完成时
将来完成时表示在将来某一时刻将完成或在另一个未来的动作发生之前已经完成的动作;也可以用来表示一种猜测。常与将来完成时连用的时间状语有：by (the time / the end of ) +表示将来时间的短语和句子;before (the end of ) +表示将来时间的词语或句子;when, after等加上表示将来动作的句子等。例如：
1)By this time tomorrow you will have arrived in Shanghai.
2)I shall have finished this composition before 9 o’clock.
3)When we get on the railway station, the train will probably have left.
4.完成进行时
完成进行时是完成时的强调形式，有现在完成进行时，过去完成进行时，将来完成进行时。
(1)现在完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如：
I have been looking for my lost book for three days, but I still haven’t found it.
(2)过去完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如：
It had been raining cats and dogs for over a week and the downpour had caused landslides in many places.
(3)将来完成进行时表示在将来某一时刻之前开始的一个动作或状态一直延续到将来某一时刻。例如：
By the time you arrive tonight, she will have been typing for hours.
四：时态一致
时态一致是英语四、六级考试的一个重要内容。通常应由主句谓语的时态决定从句的谓语时态。一般原则是：
1、当主句谓语使用现在时或将来时，从句的谓语根据具体情况使用任何时态
He says that he lives in Wuhan.
We hope that there will be many people at your party today.
“Did you hear that Bill finally sold the house?” “Yes, but I don’t know who bought it.”
“There’s a lot of excitement on the street.”
“There certainly is. Do you suppose the astronauts have returned?”
2、当主句谓语使用过去时的时候，从句的谓语必须使用过去范围的时态
He said he was writing a novel.
The teacher wanted to know when we would finish the experiment.
He said his father had been an engineer.
3、当从句是表示没有时间概念的真理时，从句的谓语应使用一般现在时。例如：
The teacher told them since light travels faster than sound, lightning appears to go before thunder.
注：在此种情况下，即使主句谓语用了过去式的各种时态，从句谓语也应用一般现在时。
4、从句谓语只能用虚拟语气的情况
利用时态一致原则确定从句动词时态时，还应注意，若主语动词是表示命令、请求、要求、建议、劝告等的动词，从句谓语只能用虚拟语气，不能遵循时态一致原则。例如：
上一篇：初中英语语法总结之代词
保存 ｜
打印 ｜
关闭
