2.no+比较级+than

“no+比较级+than”结构表示消极的意义，它既否定前者，也否定后者，含有“一样不的意思”。

下面的五个句子都是句子He is more careful than his sister．的否定句:

(1)He is less careful than his sister．

(2)He is not so/as careful as his sister．

(3)He is more careless than his sister．

(4)He is not more careful than his sister．

(5)He is no more careful than his sister．

上述(1)、(2)、(3)句表示“他没有他妹妹仔细”。是原句的完全否定句。

(4)句的含义有三:

①He is as careful as his sister．

他和他妹妹一样仔细。

②He is not so/as careful as his sister．

他不及他妹妹仔细。

③Both he and his sister are careful．

他和他妹妹都仔细。

上述(5)句的含义有三:

Neither he nor his sister is careful．

他和他妹妹都不仔细。

He is as careless as his sister．

他和他妹妹一样粗心。

He is even careless than his sister．

他比他妹妹更粗心。

从上述分析我们知道，“no+比较级+than”表示该形容词或副词的相反含义。又:

no better than=as bad as

no bigger than=as small as

no later than=as early as

提示：

同样的含义在“no more than+数量”和“no less than+数量”的结构中也有所体现。

Lincoln spent very little time at school，perhaps no more than a year in all．此句表示林肯只上了一年的学，含有少的意思。

又:He is a boy of not more than 17．

他是个不到17岁的男孩。

He is a boy of no more than 17．

他是个仅仅17岁的男孩。

第一句客观地陈述他的年龄，第二句表示他只有17岁，含有年龄小的意思。

I have taken not less than six courses．

我学了不到六门课。

I have taken no less than six courses．

我学的功课多达六门。

第一句客观地陈述我学了六门课程，第二句表示多达六门课程，含有多的意思。