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　　(1) With the ever-increasing speed of urban development, the volume of road traffic in most cities and towns has grown out of control. During the rush hour, buses and private cars are always trapped in the traffic congestion where people waste hours every day just because of the poor road condition. This essay will explore the causes of this situation and some possible actions that can be taken to solve this problem.

　　(2) To start with, the increasing number of private cars is the main cause of traffic jams. With the fast development of social economy, more citizens are able to afford private cars, which bring them great convenience. Instead of taking the sardine-packed buses or the metro to work, people now have the option to commute in their own cars. However, this new trend inevitably worsens the traffic.

　　(3) Another major cause of the high traffic volume is the over-population in large cities. Offering much more job opportunities with better career development, metropolises such as Beijing, Shanghai and Guangzhou have attracted millions of people from other parts of the country. Unfortunately, the public transportation systems in the cities are comparatively under-developed and cannot support the booming population, which naturally results in the traffic problem.

　　(4) In order to alleviate the pressure on road traffic in towns and cities, the following suggestions should be taken into consideration. First of all, the government can discourage the citizens from owing and driving private cars by charging higher fees. In the meantime, the public transportation system should be upgraded so as to increase the total capacity. Moreover, the government can encourage the citizens to take buses or the metro to work by lowering the ticket prices.

　　(5) In conclusion, the over-crowding of city roads is the result of unbalanced urban development, which can be solved with the joint efforts of both the government and the average citizens.

　　【解析】

　　本题为典型的“因果解决类”(cause/effect & solution)题目，通常要求考生讨论某问题的原因、结果、解决方案等问题。

　　许多同学对此类文章的结构安排存有疑惑，不知该写几个主体段，每段该写什么内容。事实上，比较容易掌握的写法是：有几个问题就写几段，每段回答一个问题。

　　当然，对某些题目来说，如果你对某个问题想说的比较多，也可以用两段来解决这个问题，另一个问题写一段即可。比如范文中就采用这种写法：

　　(1) 总起。

　　(2) 原因A：私家车(private cars)数量激增。

　　(3) 原因B：城市人口越来越密集，而公共交通落后。

　　(4) 解决方案 1、2、3。

　　(5) 总结。