英语词汇用法-able用法要点

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英语词汇用法-able用法要点

1. 表示“有水平的”、“能干的”,可用作表语或定语。如: He is an able manager. 他是位有水平的经理。

He is old but still able. 他虽年老,但仍有很能干。 2. 用于 be able to do sth(能或会做做某事)。如: He is able to speak English. 他会说英语

Everyone here is able to type. 这儿的每一个人都会打字。 He will be able to get about in a week or two. 再过一两个星期左右他就能走动了。

He studied hard and was able to pass his examinations. 学习很努力,所以考试及了格。

注:be able to 不但有多种时态形式(通常不用于实行时或与 be going to 连用),而且还能够与某些情态动词连用(通常不与 can ),甚至还能够有非谓语形式。如:

Since his accident he hasn’t been able to leave the house. 自出事之后,他一直未能离开家。

You might be able to persuade him. 你也许能够说服他。

I hope to be able to do the work. 我希望能干得了这项工作。 I regret not being able to help her. 我很遗憾未能协助她。 3. able 的比较级和级通常是 abler ablest,也能够是 more able most able,有时还可用 better ablebest able。如: You are better able to do it than I (am). 你比我更有水平做这件事。


She’s the person best able to cope. 她是个最能妥善处理问题的人。

4. 若要增强语气,其前除可very, quite, perfectly等修饰外,有时还可用well修饰。如:

He is quite [well] able to take care of himself. 他完全有水平照顾自己。

He’s a very able student; he’s just too lazy. 他是个很有水平的学生,仅仅太懒了。

若受just, only just修饰,则表示“只能”“仅能”。如: I was just able to make out a dark figure in the distance. 我只能看见远处有个黑影。

5. able的反义词是unable(不能的,不会的),不是disable,后者是动词,其意为“使残废”“使无水平”。比较:

They were unable to reach a decision. 他们没法做出决定。 Now that he was disabled, his house had become a prison to him. 因为他残废了,他的房子就成了他的牢笼。


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