worthy可作表语,也可作定语.作定语时意思为“有价值的”、“值得尊敬的”、“应受到赏识的”；用作表语时意思为“值得……的”、“应得到……的”,常跟被动语态动词不定式或of加名词,或被动态动名词beworthyofsth/doingsth/tobedoneThisbookisworthyofbeingread.=Thisbookisworthytoberead.Thisisaworthyarticle.作后置定语时,必须用“worthyof+名词”结构.例如：Thereisnothingworthyofmention.没有值得一提的事情.注：“worthyof+动名词”与“worth+动名词”在形式上完全不同：worthyof后面接被动式的动名词；而worth后面接主动式的动名词,虽然在形式上是主动的,但其意义仍然是被动的.试比较：Thesecond-handhouseisworthyofbeingbought.=Thesecond-handhouseisworthbuying.worthwhile既可作表语,又可作定语.表示某事因重要、有趣或受益大而值得花时间、金钱或努力去做,一般做“值得的”、“值得做的”、“有意义的”解.用作表语时,可接动名词或动词不定式.Itisworthwhiledoingsth/todosth.表语TheSummerPalaceisworthwhilegoing/togotohaveavisit.定语Thankyouforyourworthwhilesuggestion.