分类：教育/科学-学习帮助
问题：关于worth的用法worth后能用todo的么？有一句句子It 
worth 后能用to do 的么？有一句句子 It is worth mh to do what is worth doing.to do 在里面的用法是什么？
回答：在句子It is worth much to do what is worth doing.中，to do what is worth doing是真正的主语，it是形式主语，而worth的后面所带的则是much,worth 后不能用to do 。
只能说be worth +sth.或 be worth+钱，或 be worth doing.
eg：
  It isn't worth the price.
  This car is worth more than $12,000.
  That book isn't worth reading.