1. For that matter, her body required it too, since in the 16th century prolonged virginity was thought to bring on the potentially toxic condition known as green sickness, the abnormal retention of female sperm.

结构剖析：这个句子是一个含有原因状语从句的复合句。

（1）主句是：for that matter, her body required it too，从句是：since in the 16th century prolonged virginity was thought to bring on the potentially toxic condition known as green sickness, the abnormal retention of female sperm。

（2）先看主句：for that matter是介词短语做状语，表示递进关系。

(3) 再看从句：这个从句的主要谓语是使用了被动语态：was thought to。

从句的主语是prolonged virginity，在这个主语中使用了过去分词修饰名词virginity，表示它们之间是被动关系。

谓语was though to后面跟有一个动词不定式：to bring on the potentially toxic condition known as green sickness, the abnormal retention of female sperm，这个动词不定是表示结果。

在这个动词不定式短语中含有一个过去分词短语：known as green sickness，它做后置定语，修饰前面的名词condition。

而且，还含有一个同位语the abnormal retention of female sperm，它做sickness的同位语，说明这个sickness是一种什么样的病。

2. The problem, though, as Cecil was painfully aware, was that if he pushed Elizabeth too hard, she might just end up plumping for the man everyone assumed she really loved.

结构剖析：这个句子是一个含有表语从句的复合句。

（1）主句是：The problem, though, as Cecil was painfully aware, was，表语从句是：that if he pushed Elizabeth too hard, she might just end up plumping for the man everyone assumed she really loved。

（2）先看主句：主句中含有一个由as引导的定语从句修饰名词problem,定语从句是：as Cecil was painfully aware。

（3）再看从句：从句是有that而引导的表语从句。这个表语从句是一个含有条件状语从句的符合句。

主句是：she might just end up plumping for the man everyone assumed she really loved，从句是：if he pushed Elizabeth too hard。

在这个主句中含有2个定语从句：everyone assumed she really loved，一个是everyone assumed，另一个是she really loved。 其先行词是man，它们在从句中做宾语，它指代人，那么可以用的关系代词可以是who，也可以是whom，还可以是that，由于做宾语，作为引导的关系代词可以省略。