英语语法：is it worth the risk?请问这句话有没错误 worth这里作adj?我怎么觉得是to

worth,worthy,worth-while都为adj.　意为"值得".
1.worth：be worth + n.当名词为金钱时,表示"…… 值得……"
　be worth doing sth.　"……某事值得被做"
　　　The question is not worth discussing again and again.
2.worthy：be worthy of +n.　当名词为抽象名词时表示"……值得……"
　be worthy to be done "某事值得被做"
　　　The question is not worthy to be discussed againand again.
3.worth-while：be worth-while to do sth　 "值得做某事"
worth while：It is worth while doing sth
It is worth while sb to do sth.
is it worth the risk?译为：值得冒险吗?
是 be worth + n.句型,此时,worth 是 adj