can的詞義 表示體力或腦力方面的"能力"或客觀上的"可能"。如: Can you ride a bike? Yes,I can.你能騎自行車嗎?是的,我能騎。 Can Mr. Smith use chopsticks? No,he can't . 史密斯先生會用筷子嗎?不,他不會。 Most women here can read and write now.這里的多數(shù)婦女都能識字,也會寫字。 In China even barren mountains can be turned into fertile fields. 在中國,荒山也能變成良田。 can用在否定句和疑問句中時 在這種句子中,can常可意謂"可能",表示猜測和推理。如: It surely can't be six o'clock already? 不可能已經(jīng)六點鐘了吧? You can't be hungry so soon,Tom. You've just had lunch. 頓姆,你不可能餓得這么快,你剛吃過午飯。 She cannot be so careless. 她不可能這么粗心。 Where can he be? 他會在什么地方呢? What can he mean? 他會是什么意思呢? It surely can't be six o'clock already? 不可能已經(jīng)是六點鐘了吧? [注一] can加動詞的進(jìn)行時態(tài),也可表示"可能"。如: What can he be doing all this time? 他一直會是在干什么呢? She cannot be playing ping-pong now.她現(xiàn)在不可能在打乒乓球。 [注二] 在日常會話中,can可代替may表示"允許",may比較正式,如: You can drop in any time. 你隨時都可以來串門。 Can I use your basin? of course,you can.我可以用你的臉盆嗎?--當(dāng)然可以。 You can have my seat,I'm going now.我要走了,你坐我的座位吧。
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