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词组 up
释义 1.up(介词)不可用作“向着……上去”解,如不可说 A cat jumped up the roof,该在 up 后面加上 to 或 on,比较:
A cat jumped up the ladder. (一只猫在梯子上跳上去[一跳一跳地上去]。)
A cat jumped up to (或on) the ladder. (一只猫向着梯子跳上去[一刹那的动作]。)

2.up to(能胜任……)里的 to 是介词,后面可以接动名词,如 I'm sorry, but I am so tired that I am really not up to going to the theatre with you tonight 和 He did not feel up to arguing with me that morning 里的 going 和 arguing 不可改作 go 和 argue。

3.Time is up 是“时间完了”,不是“……的时间到了”,不可说 Time is up for lunch 或 Time is up to go home。He looked at his watch to see whether his quarter of an hour was up 是“他看着他的表,看他(所有)的一刻钟是否已经完了”。

4.关于 up 和 down 的区别,参见 down 1
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更新时间:2025/4/22 3:35:49