Question

She wants to marry a wealthier man than she's ever known. 这句话对吗？

我对than引导定语从句的用法不太清楚~所以经常写错~
除以上问题还有一个问题
This is the girl whose painting has been highly praised一句话可以改为This is the girl of whom the painting has been highly praised吗？

Answer 1

1、She wants to marry a wealthier man than she's ever known. 这句话对吗？
看起来的原句好像没有语法错误，但怎么那么别扭，如果要表达你的意思，我会这样写：
She wants to marry a man wealthier than anyone she ever knew.
than要凸显的是前后两个词的比较级，应该重点词汇是一个形容词，你的原句给我的感觉宾语的核心词是Man,而不是wealthy。

2、This is the girl whose painting has been highly praised一句话可以改为This is the girl of whom the painting has been highly praised吗？
首先，用this is 就是有问题的，您要表达的应该是强调句型，应该用It is的句式才对吧。
正常的句子应该是这样：
(1)The painting of this girl has been highly praised

为了强调这个女孩
（2）It is this girl whose painting has been highly praised
（3）It is this girl of whom(指代（1）句中的this girl)painting has been highly praised.
（3）句也是看起来没语病，但是就感觉怪怪的。

你觉得我的分析有道理吗？

Answer 2

第一个问题，
句子是对的，这是一个省略句，完整句是She wants to marry a wealthier man than（the ones/those） she's ever known.
第二个问题，
把painting前的the 去掉就对了 ，因为of whom 充当了whose物主代词的作用，所以不需要定冠词the
竭诚相助，希望采纳！！！