例句：Helen is the most beautiful girl that I have ever seen.

二、Nothing is + ~~~ er than to + V Nothing is + more + 形容词 + than to + V

例句：Nothing is more important than to receive education.

三、~~~ cannot emphasize the importance of ~~~ too much.（再怎么强调。。.的重要性也不为过。）

例句：We cannot emphasize the importance of protecting our eyes too much.

四、There is no denying that + S + V 。。.（不可否认的。。.）

例句：There is no denying that the qualities of our living have gone from bad to worse.

五、It is universally acknowledged that + 句子~~ （全世界都知道。。.）

例句：It is universally acknowledged that trees are indispensable to us.

六、There is no doubt that + 句子~~ （毫无疑问的。。.）

例句：There is no doubt that our educational system leaves something to be desired.