请解说一下worth .worthy.precious.value.这四个词的区别,

①worth有2种词性：名词：价值
形容词⑴be worth doing值得做……
⑵值…,有（…的价值）This bookis worth 10 US dollars
②worthy是形容词
1.有价值的;可尊敬的;相称的[B]
She is willing to donate money to a worthy cause.
她愿为高尚的事业捐款.
2.值得的,配得上的,足以...的[F][(+of)][+to-v]
She is worthy to receive such honor.
她应该得到此荣誉.
The cause is worthy of our continued support.
这一事业值得我们继续不断的支持.
③贵重的,宝贵的,珍贵的
He has sent me most precious gifts.
他送给我极为珍贵的礼物.
Time is precious.
时间是宝贵的
④1.重要性,益处[S][U]
This dictionary is of little value to you.
这本词典对你没有什么帮助.
2.价值;价格[C][U]
The value of the dollar may fall.
美元的币值可能下降.
3.等值;等价物[U]
This car is good value for your money.
这辆汽车你买得很合算.
4.价值观,价值基准[P]
His values seem old-fashioned.
他的价值观念似乎陈旧了.