好久没有发过帖子了，这次我好不容易可以沾沾高三学长学姐的光，再发个帖子，不可以放过＞ ＜

2013年四川卷只有10道语法试题，其中却有两道试题命题失误。究其原因，主要是我国中学英语教育长期存在的误区和出题人水平仍显不够。

这两道失误的试题是：
第五题：
--Why are your eyes so red? You _____ have slept well last night.
--Yeah, I stayed up late writing a report.
A. can't B. mustn't C. needn't D. won't

可以预见，此题的标准答案会是A。但B也是正确答案。这个题目不知道在贴吧讲过多少次了。可能有人会说，must表示推测时不能用于否定句。其实不然，must表示推测却出现在否定句中的例子俯拾皆是：
I can hear the Brown's phone bell ringing but no one is answering it; they mustn't be at home. (Eckersley)
Mr. Green mustn't have received my letter, otherwise he would have replied before now. (Eckersley)
The person who left it there must not be hungry, since they were so careless. (Eckhout)

第八题：
_____ which university to attend, the girl asked her teacher for advice.
A. Not knowing
B. Knowing not
C. Not known
D. Known not

这题目很神奇。我国的英语测试无一例外地「要求」把not放在分词之前，否则就判为错误。这无疑是很可笑的，因为not放在分词之后并不是很罕见的事儿。这也在贴吧里讲过，比如：
There he stood looking after the vanishing carriage and knowing not what to do. (薄冰)
Knowing not to play with matches and gasoline are examples of this.(Sun-Times)

=======没有了=======

表示第五题常见用法是B
mustn't表示可能性更高的推测，而can't表示可能性一般的推测

第八题倒是没有任何问题，虽然存在knowing not的用法，但是一般前缀句常用not doing形式；这里不存在任何异议。
你所举的两句例举都是名词作动词用，而不是题目中所用的那种句型。名词作动词用时一般都可以，但常用的还是not前置用法。

@penitentsin 题目中的句型当然有，你可以去找：http://corpus.byu.edu/coca/x3.asp?xx=1&w11=knowing&w12=not&r=#(pic,9213b07eca806538fadfe0b296dda144ad34825e,960,640)

嘎嘎