2.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：Compared with cars, bicycles have several advantages besides being affordable. Firstly, they do not consume natural resources of petrol. Secondly, they do not cause the pollution problem. Last but not least, they contribute to people’s health by giving them due physical exercise.

　　3.表示数量

　　1)It has increased from...to...

　　2)The population in this city has now increased to 800, 000.

　　3)The output of July in this factory increased by 15%compared with that of January.

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

　　再如：From the graph listed above，itcan 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.

　　二、提纲式作文

　　1.对立观点式

　　A.有人认为X 是好事，赞成X， 为什么?

　　B.有人认为X 是坏事， 反对X，为什么?

　　C.我的看法。

　　Some people are in favor of the idea of doing X. They point out the fact that 支持X 的第一个原因。They also argue that 支持X 的另一个原因。

　　However, other people stand on a different ground. They consider it harmful to do X. They firmly point out that 反对X 的第一个理由。An example can give the details of this argument: 一个例子。

　　There is some truth in both arguments. But I think the advantages of X overweigh the disadvantages. In addition to the above-mentioned negative effects it might bring about, X also may X 的有一个坏处。

　　三、 批驳观点式

　　A.一个错误观点。

　　B. 我不同意。

　　Many people argue that 错误观点。By saying that, they mean 对这个观点的进一步解释。An example they have presented is that 一个例子。。

　　There might be some element of truth in these people’s belief. But if we consider it in depth, we will feel no reservation to conclude that 与错误观点相反的观点。There are a number of reasons behind my belief.