The book is well worth to read如此写是错的吗？但网上有不少用to的句子Such CPU has not been invited yet, but it is worth to do so.Is it worth it to do so?
The book is well worth to read. （误）

Such CPU has not been invited yet, but it is worth to do so. （误。不知所云）

Is it worth it to do so? （正。不定式是真的主语。第一个 it 是形式主语，第二个 it 是 worth 的介宾。）

网友把这类句子记住：

1 This book is worthy to be read. （正）

2 This book is worthy of being read. （正）

3 This book is worthy being read. （正）

4 These rules are worth remembering.（正）

5 It is worth remembering these rules.（正）

6 It is worthwhile remembering these rules.（正）

7 It is worthwhile to remember these rules.（正）

【说明】

1,2,3 worthy 都是形容词。

4 worth 是介词；5 worth 是形容词。

6,7 worthwhile 都是形容词。