worth的用法归纳和辨析

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　　worth是值得做什么的意思，可以用作动词，除此之外还有哪些用法?

　　worth的用法

　　adj.值得(做某事); 有(做某事)的价值

　　n.价值; 用处

　　worth的常见结构

　　be worth doing sth.值得(做某事);有(做某事)的价值

　　be worth sth.用于“数量、持续时间等”的名词之后，表示某物价值多少金额。

　　The new car cost a lot of money, but it’s certainly worth it.

　　买这辆新汽车花了很多钱, 但确实物有所值。

　　The thieves stole one million pounds? worth of jewellery.

　　窃贼偷走了价值100万英镑的珠宝。

　　worth的易混辨析

　　worth/worthy/worthwhile

　　“be worth+n.”结构中，当名词为金钱时，表示“……值……钱”。

　　be worth doing sth.　……某事值得被做

　　“be worthy of+n./doing”当名词为抽象名词时，表示 “……值得……”。

　　be worthy to be done/be worthy of being done

　　某事值得被做

　　It is worthwhile to do sth. 值得做某事

　　It is worthwhile doing sth. 值得去做某事

　　It is worthwhile for sb. to do/doing sth.

　　值得某人去做某事

　　The article is worthy of careful study.

　　=The article is worth studying carefully.

　　=The article is worthy of being studied carefully.

　　=The article is worthy to be studied carefully.

　　这篇文章值得仔细学习。

　　worth的常见练习

　　单项填空

　　①This book is worthy of twice .(2009·12·江苏南京月考)

　　A. Reading B. read

　　C. having read D. being read

　　②He is well skilled playing the piano, so his music is worth . (2009·12·山东烟台模块检测)

　　A. with; listening B. with; listening to

　　C. in; listening D. in; listening to

　　解析： ①选D。 be worthy 后可以用不定式的被动语态或of being done结构，而worth后用动名词的主动语态表达被动概念。

　　②选D。be skilled in也可以用be skilled at后跟名词或动名词表示，意思是“在……方面熟练的;在……方面有能力的”。worth意思是“值得”,后跟动名词的主动语态表达被动概念。在句中，music作listen to的逻辑宾语，而listen为不及物动词，因此to不可以去掉。

　　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. 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.

　　3. 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.

　　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。