1、一、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)
2、例句：Helen is the most beautiful girl that I have ever seen。
3、Nothing is+ more+形容词+ than to+ V
4、例句：Nothing is more important than to receive education。
5、三、cannot emphasize the importance of~~~ too much
6、(再怎么强调.。。的重要性也不为过。)
7、例句：We cannot emphasize the importance of protecting our eyes too much。
8、我们再怎么强调保护眼睛的重要性也不为过。
9、四、There is no denying that+ S+ V.。。(不可否认的……)
10、例句：There is no denying that the qualities of our living have gone from bad toworse。
11、不可否认的，我们的生活品质已经每况愈下。
12、五、It is universally acknowledged that+句子~~(全世界都知道……)
13、例句：It is universally acknowledged that trees are indispensable to us。
14、全世界都知道树木对我们是不可或缺的。
15、六、There is no doubt that+句子~~(毫无疑问的……)
16、例句：There is no doubt that our educational system leaves something to bedesired。
17、毫无疑问的我们的教育制度令人不满意。
18、七、An advantage of is that+句子(……的优点是……)
19、例句：An advantage of using the solar energy is that it won't create(produce)any pollution。
20、使用太阳能的优点是它不会制造任何污染。
21、八、The reason why+句子is that+句子(……的原因是……)
22、例句：The reason why we have to grow trees is thatthey can provide us with fresh air。
23、我们必须种树的原因是它们能供应我们新鲜的空气。
24、九、So+形容词+ be+主词+ that+句子(如此……以致于……)
25、例句：So precious is time that we can't afford to waste it。
26、时间是如此珍贵，它经不起我们浪费。
27、十、Adj+ as+ Subject(主词)+ be, S+ V(虽然……)
28、例句：Rich as our country is, the qualities of our living are by no means satisfactory。{by no means= in no way= on no account一点也不}
29、虽然我们的国家富有，我们的生活品质绝对令人不满意。
30、十一、The+~er+ S+ V,~~~ the+~er+ S+ V
31、The+ more+ Adj+ S+ V,~~~ the+ more+ Adj+ S+ V
32、例句：The harder you work, the more progress you make。
33、十二、By+Ving, can(借着……，……能够……)
34、例句：By taking exercise, we can always stay healthy。
35、借着做运动，我们能够始终保持健康。
36、十三、enable+ Object(受词)+ to+ V(……使……能够……)
37、例句：Listening to music enable us to feel relaxed。
38、十四、On no account can we+ V~~~(我们绝对不能……)
39、例句：On no account can we ignore the value of knowledge。
40、十五、It is time+ S+过去式(该是……的时候了)
41、例句：It is time the authorities concerned took proper steps to solve
42、该是有关当局采取适当的措施解决交通问题的时候了。
43、十六、Those who~~~(……的人……)
44、例句：Those who break the law should be punished。
45、十七、There is no one but~~~(没有人不……)
46、例句：There is no one but longs to go to college。
47、十八、be+ forced/compelled/obliged+ to+ V(不得不……)
48、例句：Since the examination is around the corner, I am compelled to
49、由于考试迫在眉睫，我不得不放弃做运动。
50、十九、It is conceivable that+句子(可想而知的)
51、It is obvious that+句子(明显的)
52、It is apparent that+句子(显然的)
53、例句：It is conceivable that knowledge plays an important role in our life。
54、可想而知，知识在我们的一生中扮演着一个重要的角色。
55、二十、That is the reason why~~~(那就是……的原因)
56、例句：Summer is hot.That is the reason why I don't like it。
57、夏天很炎热。那就是我不喜欢它的原因。