Until now I have always lived alone. 直到现在,我一直独自生活。
Let's wait until the rain stops. 咱们等雨停了吧。
You're not going out until you've finished this. 你不把这事做完就不准出去。
until a few years ago,only boys could become students at he University of...
老师,until 用在肯定句是有否定意义,相反,用在否定句有肯定意义吗?为什么第一句,第二句可以这样用的?老师,还有什么单词与until的用法一样的。
【unti作介词的用法】谓语动词如果是非延续性动词,只能用否定式;谓语动词如果是延续性动词,可以用否定式或者肯定式。请根据下面的例句体会它们的含义和翻译方法:
I won't leave until tomorrow.我到明天才离开。(不能说:I'll leave until tomorrow.)
I'll wait until tomorrow.我等到明天。(含义是 wait一直延续到tomorrow)
I won't wait until tomorrow. 我等不到明天。(含义是 wait不延续到tomorrow)
【until作连词的用法】这时,until引导一个时间状语从句。主句的谓语动词如果是非延续性动词,只能用否定式;主句的谓语动词如果是延续性动词,可以用否定式或者肯定式。例如:
I won't leave until he comes.我到他回来才离开。(不能说:I'll leave until he comes.)
I'll wait until he comes.我等到他回来。(含义是 wait一直延续到 he comes,即 he comes 之前一直在等,一看到他回来,就不再等。)
I won't wait until he comes. 我等不到他回来。(含义是 wait不延续到 he comes,即在 he comes 之前某个时间点就不等了。)