以下是短文写作中使用率最高、覆盖面最广的基本句式，每组句式的功能相同或相似，考生可根据自己的情况选择其中的1-2个，做到能够熟练正确地仿写或套用。在这里需要提醒大家，盲目的套用句式是不可取的，必须首先做到对这些句式的理解和熟悉，经过大量的练习，才能轻松自如地应用在自己的作文中。

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 placein our life. Firstly, people’s living standard has been greatlyimproved. Secondly, most people are well paid, and they can affordwhat they need or like. Last but not least, more and more peopleprefer 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 inour 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 worldbetter, 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 harmful to us.

例如：

However, everything divides into two. Television can also beharmful to us. It can do harm to our health and make us lazy if wespend too much time watching television.

4、表示重要、必要、困难、方便、可能

1)It is important(necessary, difficult, convenient,possible)forsb. 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 thegovernment, in schools or in business. Soon, computers will befound in every home, too. We have good reason to say that computersare playing an increasingly important role in our life and we havestepped into the Computer Age.