英语词汇用法-able用法要点

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. 他

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 连用)，甚至还能够有非谓语形式。如：

Since his accident h e 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 和 ablest，也能够是 more able 和 most able，有时还可用 better able和best 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。