~~~ the + ~ est + 名词 + (that) + 主词 + have ever + seen (known/heard/had/read, etc) ~~~ the most+ 形容词 + 名词 + (that) + 主词 + have ever+ seen (known/heard/had/read, etc)
Helen is the most beautiful girlthat I have ever seen.
Nothing is + ~~~ er than to + VNothing is + more + 形容词 + than to + V
Nothing is more important than toreceive education.
~~~ cannot emphasize theimportance of ~~~ too much.（再怎么强调...的重要性也不为过。）
We cannot emphasize the importanceof protecting our eyes too much.
There is no denying that + S + V...（不可否认的...）
There is no denying that thequalities of our living have gone from bad to worse.
It is universally acknowledgedthat + 句子~~ （全世界都知道...）
It is universally acknowledgedthat trees are indispensable to us.
An advantage of ~~~ is that + 句子（...的优点是...）
An advantage of using the solarenergy is that it won’t create (produce) any pollution.
So + 形容词 + be + 主词 + that + 句子（如此...以致于...）
So precious is time that we can’t afford to waste it.
The + ~er + S + V, ~~~the + ~er + S + V ~~~ The + more + Adj + S + V, ~~~the + more + Adj + S + V~~~（愈...愈...）
The harder you work, the moreprogress you make.
~~~ enable + Object（受词）+ to + V （..使..能够..）
Listening to music enable us tofeel relaxed. 听音乐使我们能够感觉轻松。
On no account can we + V ~~~ （我们**不能...）
On no account can we ignore thevalue of knowledge. 我们**不能忽略知识的价值。
It is time + S + 过去式（该是...的时候了）
It is time the authoritiesconcerned took proper steps to solve the traffic problems.
There is no one but ~~~ （没有人不...）
There is no one but longs to go tocollege.
It is conceivable that + 句子（可想而知的）
It is conceivable that knowledgeplays an important role in our life.
For the past + 时间，S + 现在完成式...（过去...年来，...一直...）
For the past two years, I havebeen busy preparing for the examination.
Since + S + 过去式，S + 现在完成式。
Since he went to senior highschool, he has worked very hard.
It pays to + V ~~~ （...是值得的。）
It pays to help others. 帮助别人是值得的。
Spare no effort to + V （不遗余力的）
We should spare no effort tobeautify our environment.ansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-bidi-font-weight:bold'>由“数词、代词或名词+of +关系代词”引导的非限制性定语从句。