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小 发表于 2008-4-13 09:58 只看该作者
语法时空,天天更新20080413
大家早,今天是周日了,一个个都还在睡猪猪吗?哈哈!
11.24 一般现在时代替完成时
1) 有些动词用一般现在时代替完成时:
hear, tell, learn, write , understand, forget, know, find , say, remember.
I hear (= have heard) he will go to London.
I forget (=have forgotten) how old he is.
2) 句型 " It is … since…"代替"It has been … since …"
3) It is (= has been) five years since we last met.
11.25 一般现在时代替进行时
1) 句型:Here comes… ; There goes…
Look, here comes Mr. Li.
11.26 现在进行时代替将来时
1) 表示即将发生的或预定中计划好的活动。
Are you staying with us this weekend? 这周和我们一起度周末吗?
We are leaving soon. 我们马上就走。
2) 渐变动词,如:get, run, grow, become, begin及die。
He is dying.
11.27 时态一致
1) 如果从句所叙述的为真理或不变的事实,则永远用现在时。
At that time, people did not know that the earth moves.
He told me last week that he is eighteen.
2) 宾语从句中的助动词ought, need, must, dare 时态是不变的。
He thought that I need not tell you the truth.
11.28 时态与时间状语
时间状语
一般现在时 every …, sometimes, at …, on Sunday, 一般过去时 yesterday, last week, an hour ago, the other day, in 1982, just now
一般将来时 next…, tomorrow, in+时间,
现在完成时 for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently
过去完成时 before, by, until, when, after, once, as soon as
过去进行时 this morning, the whole morning, all day, yesterday, from nine to ten last evening… when, while
将来进行时 soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening
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