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worth 的用法

worth，worthy，worth-while都为adj.　意为值得.

1. worth：be worth + n.　 当名词为金钱时，表示 值得

be worth doing sth.　某事值得被做

The question is not worth discussing again and again.

2. worthy：be worthy of +n.　当名词为抽象名词时表示值得

be worthy to be done 某事值得被做

The question is not worthy to be discussed againand again.

3. worth-while：be worth-while to do sth　 值得做某事

worth while：It is worth while doing sth

It is worth while sb to do sth.

典型例题

It is not ____ to discuss the question again and again.

A.worth　B.worthy　C.worth-while　D.worth while

答案C. 由worth的用法可知，此句只适合词组be worth-while to do sth..因此选C.

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