1.表示原因
1)There are three reasons for this. 2)The reasons for this are as follows. 3)The reason for this is obvious. 4)The reason for this is not far to seek. 5)The reason for this is that...
6)We have good reason to believe that...
例如：There are three reasons for the changes that have taken place in our life.Firstly，people’s living standard has been greatly improved.Secondly，most people are well paid， and they can afford what they need or like.Last but not least，more and more people prefer to enjoy modern life.
注：如考生写第一个句子没有把握，可将其改写成两个句子。如：Great changes have taken place in our life. There are three reasons for this.这样写可以避免套用中的表达失误。 2.表示好处
1)It has the following advantages. 2)It does us a lot of good. 3)It benefits us quite a lot. 4)It is beneficial to us. 5)It is of great benefit to us.
例如：Books are like friends.They can help us know the world better，and they can open our minds and widen our horizons.Therefore，reading extensively is of great benefit to us. 3.表示坏处
1)It has more disadvantages than advantages. 2)It does us much harm.
3)It is harmfulto us.
例如：However，everything divides into two.Television can also be harmful to us.It can do harm to our health and make us lazy if we spend too much time watching television.
注：要说一件事，有好处也有坏处。可以说Every coin has two sides. 每个硬币都有两面。On the one hand。。。。on the other hand。。。一方面，另一方面。 4.表示重要、必要、困难、方便、可能
1)It is important(necessary，difficult，convenient， possible)for sb.to do sth. 2)We think it necessary to do sth. 3)It plays an important role in our life.
例如： Computers are now being used everywhere，whether in the government，in schools or in business.Soon， computers will be found in every home，too.We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age. 5.表示措施
1)We should take some effective measures.
2)We should try our best to overcome(conquer)the difficulties. 3)We should do our utmost in doing sth.
4)We should solve the problems that we are confronted(faced)with.
例如：The housing problem that we are confronted with is becoming more and more serious.Therefore，we must take some effective measures to solve it. 6.表示变化
1)Some changes have taken place in the past five years.
2)A great change will certainly be produced in the world’s communications. 3)The computer has brought about many changes in education.
例如：Some changes have taken place in people’s diet in the past five years.The major reasons for these changes are not far to seek.Nowadays，more and more people
are switching from grain to meat for protein，and from fruit and vegetable to milk for vitamins.
7.表示事实、现状
1)We cannot ignore the fact that... 2)No one can deny the fact that... 3)There is no denying the fact that...
4)This is a phenomenon that many people are interested in. 5)However，that’s not the case.
例如：We cannot ignore the fact that industrialization brings with it the problems of pollution.To solve these problems， we can start by educating the public about the hazards of pollution.The government on its part should also design stricter laws to promote a cleaner environment. 8.表示比较
1)Compared with A，B...
2)I prefer to read rather than watch TV. 3)There is a striking contrast between them.
例如：Compared with cars，bicycles have several advantages besides being affordable.
9.表示数量
1)It has increased(decreased)from...to...
2)The population in this city has now increased (decreased)to 800，000. 3)The output of July in this factory increased by 15% compared with that of January.
例如：From the graph listed above，it can be seen that student use of computers has increased from an average of less than two hours per week in 1990 to 20 hours in 2000.
10.表示看法
1)People have(take，adopt，assume)different attitudes towards sth. 2)People have different opinions on this problem.
3)Some people believe that...Others argue that... 一些人认为，另一些人认为 例如：People have different attitudes towards failure.Some believe that failure leads to success.
注：一个段落有时很适宜以问句开始，应掌握这一写作方法。 11.表示结论 1)In short， ...
2)It may be summed up as follows. /in the end，/to sum up（作为总结） 3)From what has been mentioned above，we can come to the conclusion that ...（从刚才提到的内容，我们可以得出结论：。。。。）
4）Last but not least 最后，但不是最不重要的
注：例句1可用于任何一个段落的结论句;例句3则多用文章结论段的第一句。 12.套语
1)It’s well known to us that ... 2)As is known to us，... 众所周知
3)This is a topic that is being widely talked about. 这是一个热议话题
4)From what is （are）listed above，it can be seen that ...从以上内容可以看出 5)As a proverb says，“Where there is a will，there is a way.? 正如谚语“有志者事竟成”所说，。。。。。
例如：As is well known to us，it is important for the students to know the world outside campus.
常用加分句式：
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）
Yao Ming is the tallest basketball player that I have ever seen. 姚明是我所见过的最高的篮球运动员
Liu Xiang is the most hardworking sportsman that I have ever seen. 刘翔是我所见过的最勤奋的运动员。
二、Nothing is + 比较级+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。
Nothing is more important than to protect our environment. 没有什么比环保更重要的事。
Nothing is more important than to gain knowledge. 没有什么比学习知识更重要的事。
三、Sb. Can’t be too…. (再怎么….也不为过)
Sb 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、It is known to as all that + 句子~~ （全世界都知道……） 例句：It is known to us all that trees are indispensable to us. 全世界都知道树木对我们是不可或缺的。
五、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。
六、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。
An advantage of taking exercises is that it can make us keep healthy. 锻炼身体的优点是它可以让我们保持健康。
七、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。
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