Worth,worthy, worthwhile这三个词怎么用？ worth worthy worthwhile 分别有什么用...

Worth
形式1：be worth + 动名词 (不加不定式)
① 动名词一定是主动形式
② 动词名中的动词一定是及物动词，主语为此动词的感官对象。
The experiment is worth trying. (not being tried) 这个实验值得去尝试。

形式2： be worth可加money, price, time等名词
A nuclear submarine is worth more than a billion dollars. 这艘核潜艇价值可达十亿多美元。

Worthwhile
形式1： 动名词／不定式＋be worthwhile
Explaining a job fully to a new employee is worthwhile.
To explain a job fully to a new employee is worthwhile.
给新雇员详细说明工作的要求是值得的。
形式 2： It is + worthwhile + 动名词/不定式
For example:
It is worthwhile to explain a job fully to a new employee.
It is worthwhile explaining a job fully to a new employee.
形式3： It is worth one’s while + 不定式 （不加动名词）
It is worth your while to explain a job fully to a new employee.

Worthy
形式 1： be worthy of 名词/动名词的被动形式（不加不定式）
This issue is worthy of careful study. 这一问题值得仔细研究。
This issue is worthy of being studied carefully. (passive gerund)
形式 2： be worthy + 不定式的被动形式
For example：
The issue is worthy to be studied carefully.

扩展阅读：www.sony.com.cn ... worthy worth worthwhile ... be worthwhile doing ... compensation ... worth the trouble ... professional ... worthy of attention ... be worthy to do ... trustworthy ...