worth的用法和区别有哪些?

worth worthy worthwhile ?三者的用法和区别如下:

1、worth adj&n.值得,应该,作形容词在句中只能作表语

句型1sb./sth. be worth ... :

例句1His words are worth notice.他的话值得注意.

句型2be (well) worth doing ?(很)值得做...,注意这个句型是主动表被动的用法。

例句2This book is worth reading.

2、worthy adj&n.有价值的,值得...的,做形容词时既可以做表语又可以作定语

句型1be worthy of +n.

例句2He is worthy of our praise.

句型2be (quite)worthy of being done (很)值得做... :

例句2The film is worhty of being watched.

句型3be worthy to be done (很)值得做... ,上面的句子可以改写为:

例句3The film is worthy to be watched.

3、worthwhile adj.值得做的..值得出力的,既可以做表语又可以作定语

句型be worthwhile doing/be worthwhile to do:

例句It is worthwhile discussing the question again.=It is worthwhile to discuss the question again

扩展资料:

(1)在现代英语中,在 be worth 前使用形式主语 it 被认为是合习惯的。如:

It isn’t worth repairing the car. 这辆汽车不值得修了。

但是,若不用形式主语 it 而直接用动名词作主语则是错误的,如:

误:Repairing the car is worth.

(2)有关 be worthy?的搭配习惯

be worthy 后不能直接跟名词、代词或动名词,若要接,应借助介词of。如:

Their efforts are worthy of your support. 他们的努力应得到你的支持。

(3)与 be worth 后只接动名词不接不定式不同,be worthy 后不接动名词,而接不定式(若该不定式要表示被动意义,则应用被动形式)。如:

This suggestion is worthy to be considered. 这个建议值得考虑。

(4)若要在 be worthy 后接动名词,与后接名词时的情形一样,应借助介词 of,且该动名词若要表示被动意义,要用被动形式。如:

This suggestion is worthy of being considered 〔=to be considered〕. 这个建议值得考虑。

(5)有关 be worthwhile?的搭配习惯

(1) be worthwhile 后接动名词或不定式均可。如:

It is worthwhile buying the dictionary. 这本词典值得买。(其中的 worthwhile 也可换成 worth)