be over(intr)结束:
The storm is over now;we can go on.
暴风雨过去了;我们可以继续走了。
be up(intr)起床了:
Dont expect her to answer the doorbell at eight oclock on Sundaymorning.She wont be up.
星期日早上8点钟时,别指望她听见门铃响会来开门。她那时还没有起床呢。
be up to(tr)体力或智力足以(宾语常用it,但也可用动名词):
After his illness the Minister continued in office though he was no longerup to the work/up to doing the work.
部长生病后继续任职,但他已力不胜任了。
be up to something/some mischief/some trick/no good从事或忙于某种调皮的、不正道的或有害的事/捣鬼:
Dont trust him;he is up to something/some trick.
别信他;他在搞鬼/在耍诡计。
The boys are very quiet.I wonder what they are up to.
男孩子们无声无息了。我不知他们在捣什么鬼。
注意:这里up to的宾语常是某一很不确定的词语,如上面例句所示。这个习语从来不与某一具体明确的事连用。
it is up to someone(常带动词不定式)此事是某人的职责:
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2016-02-29
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