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) 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。
*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.
没有比接受教育更重要的事。
*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.
我们再怎么强调保护眼睛的重要性也不为过。
*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.
不可否认的，我们的生活品质已经每况愈下。
*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.
全世界都知道树木对我们是不可或缺的。
*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.
毫无疑问的我们的教育制度令人不满意。
七、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。
八、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. 我们必须种树的原因是它们能供应我们新鲜的空气。
*九、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。
十、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 =at no time = in no case = in no sense = under no circumstances = not ...in the least 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。
十一、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。
十二、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。
*十三、…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。
*十四、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。
十五、it is time + s + 过去式 (该是……的时候了) 例句：it is time the authorities concerned took proper steps to solve the traffic problems.
该是有关当局采取适当的措施来解决交通问题的时候了。
十六、those who…(……的人……) 例句：those who violate traffic regulations should be punished.
违反交通规定的人应该受处罚。
*十七、there is no one but…(没有人不……) 例句：there is no one but longs to go to college.
没有人不渴望上大学。
*十八、be + forced/compelled/obliged + to + v (不得不……) 例句：since the examination is around the corner, i am compelled to give up doing sports.
既然考试迫在眉睫，我不得不放弃做运动。
*十九、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。
二十、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。