Topic sentence (main idea)

　　Explanation/detail 1

　　Explanation/detail 2

　　Explanation/detail 3

　　1、2、3 之间又按照:

　　The most general------the least general

　　The most common------the least common

　　The most popular------the least popular

　　对于在课堂教学中的使用，教师可以做具体的演示。如讨论是什么因素导致了交通堵塞。课上brainstorming后得到以下论据：

　　1.over-population

　　2.too many cars

　　3.insufficient roads

　　4.unreasonable design of infrastructure

　　5.people’s awareness

　　6.driving offenders

　　7.police

　　8.rules and regulations

　　要使用列举的方式，可以将上述论据进行分类，前四点可作为客观原因，5、6两条可作为主观原因，最后两条可以作为政府的宏观管理问题。组织方式如下：

　　Topic sentence: There are several factors causing traffic jams.

　　Explanation 1: The leading contributor is overpopulation, which leads to too many carsavailable even though more roads have been constructed. The situation will be worse if theinfrastructure is not reasonably designed.

　　Explanation 2: Apart from these objective reasons, part of the blame should be laid onpeople’s awareness. There are many driving offenders either because they are drunk or they donot think it important to keep to the traffic rules and regulations.

　　Explanation 3: Besides, the police’s supervision also plays an essential role. If they do notmanage well, traffic jams are more likely to occur.

　　列举的方法尤其有利于初学写作的考生模仿和借鉴，它不失为一种快速成文的有效途径。本文由在线英语听力室整理编辑。