疑难解惑

释疑解惑
问： 我看到这样一个句子：  Small though ( or as ) the molecule is, the atom is much smaller than it. 句子中的as 和though 都可以用， 但是我记得以前老师讲过as引导的让步状语从句通常用倒装形式， 好像不是though。 如果选项中同时出现了as 和though的话， 应该选择哪个？
答： AS 用作连词引导让步状语从句的时候， 意为：“ 尽管， 虽然”， 通常用到装。 如： 1) Improbable as it seems, it’s true.
2) Try as you may, you will never succeed.
而THOUGH 用作连词引导让步状语从句的时候， 则既可不倒装也可到装， 如：
3) Though they know the war is lost, they continue to fight.
4) Strange though it may seem, he arrived early.
5) Hardworking though he was, there was never enough money to pay the bills.
尤其在形容词， 名词作表语的时候， 为了加强语气， 通常要用倒装语序。 如：
6）Strange though it may seem ( Though it may seem strange), he remained single all his life.
因此在这一类型的词汇测试中， 同时出现as 和though 的可能性是不大的。
问： 2000年高考英语试题第八题： _____ to take this adventure course will certainly learn a lot of useful skills.
A) Brave enough students    B) Enough brave students
C) Students brave enough    D) Students enough brave
答案是 C。请问C 是不是一种形容词词组作名词的后置修饰语？在什么情况下可以使用这种形式？
答： 是的。 答案C中的brave enough 是形容词短语作为名词students 的后置修饰语。 着的注意的是这里的enough 是副词用以修饰其前的形容词brave, 其意为“足，够（ to the necessary degree, sufficiently）, 须置于所修饰的形容词的后面。 如：
1)        The situation is serious enough.
2)        Are you warm enough in such a light jacket?
Enough 不仅修饰形容词也常修饰副词或动词， 同样也须后置。 如：
3）Does she speak Italian well enough to get the job?
4) He didn’t work hard enough and so he failed the examination.
5) Have you played enough?