they did not find [] to prepare for the worst conditionsthey might meet.求翻译加详解

先看下这三个词的区别，就知道选什么了：

一，搭配不同：
Sth. be worth sth./doing
Sth. be worthy of sth./of being done/to be done Sb. be worthy to do/of doing
It be worth (one's) while doing/to do
举一个例子就简单了：
那个地方值得一去。
The place is worth a visit.
The place is worth visiting.
It is worth visiting the place.
The place is worthy of a visit.
The place is worthy of being visited.
The place is worthy to be visited.
It is worthwhile visiting the place.
It is worthwhile to visit the place.

二，作的句子成分不同：
worth通常只作表语，而worthy和worthwhile可作表语或定语
e.g.
It isn’t worth the trouble. 不值得费那个事。worth作表语
His behavior is worthy of great praise. 他的行为值得高度赞扬。worthy作表语
He is a worthy gentleman. 他是位值得尊敬的绅士。worthy作定语
They achieved a very worthwhile result. 他们取得了很有价值的成果。worthwhile作定语
We had a long wait, but it was worthwhile because we got the tickets. 我们等了很久，但还算值得，因为我们把票买到了。worthwhile作表语

三，使用的修饰语不同
worth 通常不用very 修饰(要表示类似意思可用well)，而worthy 和worthwhile则可用very修饰。e.g.
That is very worthy of our attention. 那件事很值得我们注意。
Nursing is a very worthwhile career. 护理工作是很值得干的职业。
The work is well worth doing. 这项工作很值得做。

根据以上理论，
A. 此结构中it必须作形式主语，而此句中it是作形式宾语 错误
B. it be worthwhile to do 正确
C it be worth to do Sth. be worth sth./doing不能是to do 错误
D it be worthy to do Sth. be worthy of sth./to be done/of being done不是to do 错误

本人写得很辛苦，望楼主珍惜。

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