形容词的主要功能是用作定语和表语,但有时也可用作状语(有人也称之为主语补足语,因为它们是补充说明主语的)。
He arrived home, hungry and tired.
Unable to afford the time, I had to give up the plan.
形容词用作状语的特点是,该形容词的逻辑主语就是句子主语,并且通常可以用并列句或主从复合句来改写。如以上各句可改写为:
He lay in bed and he was awake.
He arrived home and he was hungry and tired.
Because I was unable to afford the time, I had to give up the plan.
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有少数形容词,如red, boiling, freezing, icy, bitter等,它们在某些搭配中可以起副词,用作状语,表示程度,意为「很」「非常」等。
The weather is freezing bitter cold.
但这样的用法非常有限,并往往只用于某些特定搭配中,如可说 bitter cold(冰冷),bitter wind(寒风)等,但习惯上却不说 bitter hot(炽热),bitter busy(极忙)等。
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有些形容词在某些固定结构中可用作独立成分,起承上启下的作用(也可视为一种状语)。
Sure enough, she was there.
Strange to say, he did pass his exam after all.
He may be late. Worse still, he may not come at all.
More important, he’s got a steady job.
Most remarkable of all, he never suffers from nerves on the stage.
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