英语四级作文万能套用结构：

1. Introduction（介绍）
开头一般包含背景信息、重要性、争议等内容，引出文章主题。

2. Body（正文）
正文包括多个段落，每个段落都有一个主题句，主题句后面用论据、例子、数据等来支持。段落之间要有合理的过渡句。

3. Conclusion（结论）
结论要简明扼要地总结文章内容，并给出自己的看法或建议。

英语四级作文常用句型：

1. 表示原因
① There are several 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 several reasons for the shortage of water supply, one of which is the rapid growth of population.

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 broaden our horizon and enrich our minds.

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 be harmful to us. It can do harm to our health and make us lazy if we spend too much time watching TV.

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.
例如：
It is necessary for us to take measures to stop the pollution of air and water in our city.

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 government should take strong measures to reduce the air pollution in cities.

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.
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.
例如：
We cannot ignore the fact that industrialization brings with it the problems of pollution.

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：
With the improvement of the living standard, the proportion of people's income spent on food has decreased while that spent on tourism has increased.

10. 表示看法
① People have(take, adopt, assume)different attitudes towards sth.
② People have different opinions on this problem.
③ People take different views of(on)the question.
例如：
Some people believe that students should be allowed to evaluate