I don't think the book is worth------unless it is worthy----

e worth doing sth值得做某事 无被动it is worthy to do sth 做什么是值得的,有被动worth与worthy都是作“值得”讲的形容词,但在使用上和与词的搭配关系上都不相同。一、worth一般只用作表语 1．主语（物）+be +worth + 名词。Hawaii is a beautiful place for travelling and worth a visit。夏威夷是个旅游胜地,值得一游。The new bike is worth 350 yuan 。这辆新自行车值350元。2．主语（人）+ be +worth + (表示金钱或财产)名词。表示“拥有……财产”。He is worth several million dollars 。他有好几百万美元的财产。How much is Mr。Green worth 格林先生有多少财产。3．主语（物）+ be + worth +动名词。The book is worth reading 。这本书值得一读。The car isn't worth repairing。这辆汽车不值得修了。请注意：（1）在这种情况下,名子的主语与动名词在逻辑上有动宾关系,因此这个动名词应该是及物的（如上述例句）或具有及物性质的短语动词（如下述例句）。The broadcast programme is worth listening to 。这条广播节目值得一听。The picture is worth taking good care of 。那幅画值得好好保存。（2）在这结构中,也可用先行词it 作主语。It is worth repairing the TV set。这台电视机值修一下。（3）worth前面,一般用well修饰,不用very。The scheme is well worth a try 。这个计划很值得一次。4．Worth one's while "对……是值得做的,对……有益的,使感兴趣的”,主语是动名词或动词不定式。句首用it作形式主语。（1） It is worth (one's) while + doing sth。值得某人做某事。It is worth out while discussing the question again 。这个问题值得我们再讨论一下。（2） It is worth (one's)while +to do sth。=To do sth 。is worth(one's)while。值得（某人）做某事。It would be well worth your while to come to the meeting。来参加这个会议对你来说是很值得的。二、worthy 可作定语和表语,作表语时是“值得”的含义。1．Worthy 可作定语,意思是“可敬的,有价值得,相称的”。They are my worthy friends。他们是我的可敬的朋友。2． Worthy 作表语,后接不定式作状语。如果句子的主语是动词不定式的逻辑主语,则不定式有主动语态；如果是动宾关系,则用被动语态。The problem is worthy to be considered 。这个问题值得考虑。3．Worthy of “值得……,配得上……”。（1）主语 + be + worthy of + n 。The article is worthy of careful study 。这篇文章值得仔细研究。Her achievements are worthy of the highest praise 。她的成就值得高度的赞扬。（2）主语 + be + worthy of + being done The book is worthy of being read 。这本书值得一读。比较：The book is worthy to read。The book is worth reading 。(3)worthy of 作后置定语。He is a teacher worthy of great respect。他是位受尊敬的教师。He is a poet worthy of the name 。他是一位名副其实的诗人。