The Scientific Dictionary is 500,It is really for your youth.The Scientific Dictionary is __500yuan .It is really __for your youth.B.worth ,worth readingC.worth.worth to read 为什么c不对.选择worth doing 的原因是因为有 be worth doing sth

The Scientific Dictionary is 500,It is really for your youth.The Scientific Dictionary is __500yuan .It is really __for your youth.B.worth ,worth readingC.worth.worth to read 为什么c不对.选择worth doing 的原因是因为有 be worth doing sth
The Scientific Dictionary is 500,It is really for your youth.
The Scientific Dictionary is __500yuan .It is really __for your youth.
B.worth ,worth reading
C.worth.worth to read
为什么c不对.
选择worth doing 的原因是因为有 be worth doing sth 这个结构吗?
那么有没有 be worth to be done 这个结构?如果有的话,那是不是,题目中的选项改写成worth to be read 就对了呢?

The Scientific Dictionary is 500,It is really for your youth.The Scientific Dictionary is __500yuan .It is really __for your youth.B.worth ,worth readingC.worth.worth to read 为什么c不对.选择worth doing 的原因是因为有 be worth doing sth
1.worth表示值（多少钱）的意思时,其后面加钱数或类似的词语.
This picture is worth 100yuan.
2.“It（形式主语）+be+worth+动词的-ing形式+……”
例如：I ' t isn ' t worth repairing the bike.
这辆自行车不值得修理了.
Is it worth visiting the city?
这个城市值得参观吗?
一般来说,worth前面可用well,really,very much,hardly,easily等词语修饰,但一般不用very修饰.
例如：This is really worth doing.
这确实值得一做.
3.有be worth doing sth 这个结构“主语+be+worth+动词的-ing形式+……”此时,句子的主语就是worth之后动词-ing形式的逻辑宾语.
例如：Now John is worth talking to.（现在值得与约翰谈一谈.）
He isn ' t worth getting angry with.（犯不上跟他生气.）
但没有be worth to be done 这个结构,是错的
懂了吗,

worth 用法
例子：
这本书值得一读有三种表示：
This book is worth reading.
This book is worthy of being read.
This book is worthy to be read.
所以选B没问题 至于C可以根据后面两种表示方法去改成正确的。

肯定地说没有be worth to do，一定是worth doing ，所以一定没有be worth to be done
worth是一个只能作表语的形容词，后接名词或接动名词的主动形式。
worthy 作表语，也可作定语。其后接of sth.，也可以后接to do sth.
所以可以说be worthy to be read，选项C改成 worthy to ...

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肯定地说没有be worth to do，一定是worth doing ，所以一定没有be worth to be done
worth是一个只能作表语的形容词，后接名词或接动名词的主动形式。
worthy 作表语，也可作定语。其后接of sth.，也可以后接to do sth.
所以可以说be worthy to be read，选项C改成 worthy to be read或者worthy of being read就对了
希望能帮到你

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没有be worth to be done这个结构
worth 后面只能跟doing或者价钱