There is _____what the weather will be like.A.no knowing B.not nothing为什么选A

There is _____what the weather will be like.A.no knowing B.not nothing为什么选A
There is _____what the weather will be like.A.no knowing B.not nothing为什么选A

There is _____what the weather will be like.A.no knowing B.not nothing为什么选A
knowing动名词作宾语,what the weather will be like 你可以把它看成宾语从句,也可以把它看作宾语补足语
B的话:there is nothing about the weather

not nothing双重否定了
此外，there is no +(名词）这里一个很多见的句式

惯用法，此处的knowing是个常用的名词，
请参考例句：
http://www.baidu.com/s?lm=0&si=&rn=10&ie=gb2312&ct=1048576&wd=knowing&tn=baidu