worth是介词,名词, worthy是形容词,但一般用worthy of doing something. worthwhile是形容词,所以后面用哪个就很明显了,worthwhile If something is worthwhile, it is enjoyable or useful, and worth the time, money, or effort that is spent on it worht
选worthwhile worth, worthy, worthwhile在用法上的区别是:worth是介词, 后接动名词或名词,形成介词短语。接动名词时, 与主语是动宾关系,其形式是主动的,意义是被动的。如: The book is worth reading. worthy是形容词, 置于be动词后或名词后面, 做后位修饰语, 其结构是: be worthy of doing sth....