1、An advantage of-is that+句子(……的优点是……)
例句：An advantage of using the solar energy is that it won't create(produce)any pollution.
使用太阳能的优点是它不会制造任何污染。
2、The reason why+句子-is that+句子(……的原因是……)
例句：The reason why we have to grow trees is that they can provide us with fresh air.The reason why we have to grow trees is that they can supply fresh air for us.
我们必须种树的原因是它们能供应我们新鲜的空气。
3、So+形容词+be+主词+that+句子(如此……以致于……)
例句：So precious is time that we can't afford to waste it.
时间是如此珍贵，我们经不起浪费它。
4、Adj+as+Subject(主词)+be，S+V-(虽然……)
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)
虽然我们的国家富有，我们的生活品质绝对令人不满意。
5、The+-er+S+V，-the+-er+S+V;The+more+Adj+S+V，-the+more+Adj+S+V-(愈……愈……)
例句：The harder you work，the more progress you make.
你愈努力，你愈进步。
The more books we read，the more learned we become.
我们书读愈多，我们愈有学问。
6、By+Ving，-can-(借着……，……能够……)
例句：By taking exercise，we can always stay healthy.
借着做运动，我们能够始终保持健康。
7、～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)
例句：Helen is the most beautiful girl that I have ever seen.
海伦是我所看过最美丽的女孩。
Mr.Chang is the kindest teacher that I have ever had.
张老师是我曾经遇到最仁慈的教师。
8、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.
没有比接受教育更重要的事。
9、～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.
我们再怎么强调保护眼睛的重要性也不为过。
10、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.
不可否认的，我们的生活品质已经每况愈下。
11、It is conceivable that+句子(可想而知的);It is obvious that+句子(明显的);It is apparent that+句子(显然的)
例句：It is conceivable that knowledge plays an important role in our life.
可想而知，知识在我们的一生中扮演一个重要的角色。
12、That is the reason why-(那就是……的原因)
例句：Summer is sultry.That is the reason why I don't like it.
夏天很燠热。那就是我不喜欢它的原因。
13、For the past+时间，S+现在完成式……(过去……年来，……一直……)
例句：For the past two years，I have been busy preparing for the examination.
过去两年来，我一直忙着准备考试。
14、Since+S+过去式，S+现在完成式。
例句：Since he went to senior high school，he has worked very hard.
自从他上高中，他一直很用功。
15、It pays to+V-(……是值得的。)
例句：It pays to help others.
帮助别人是值得的。
16、be based on(以……为基础)
例句：The progress of thee society is based on harmony.
社会的进步是以和谐为基础的。
17、Spare no effort to+V(不遗余力的)
We should spare no effort to beautify our environment.
我们应该不遗余力的美化我们的环境。
18、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.
全世界都知道树木对我们是不可或缺的。
19、-enable+Object(受词)+to+V(……使……能够……)
例句：Listening to music enable us to feel relaxed.
听音乐使我们能够感觉轻松。
20、On no account can we+V-(我们绝对不能……)
例句：On no account can we ignore the value of knowledge.
我们绝对不能忽略知识的价值。
