雅思考试大作文范文：城市无限扩大的原因和后果

 　　题目：Since cities have changed a lot, the size of the cities has grown enormously. Discuss the causes and consequence of the enormous size of cities.

　　范文：Nowadays, the maps of cities are updated frequently. With the development of city, more and more suburbs become parts of the city. When the cities in the world are amplifying¹ constantly, people discuss the topic hotly, the causes and consequence of the enormous cities. Different people have different answers by their respective views.

　　In my opinion, the evolution of society and the development of economy result in the growth of the vast size of cities. Since the number of population in every city is increasing continually, people need a large amount of space to live in. With the progress of the technology, the output of crops rises sharply. Fewer and fewer farmers are required, as a result, more and more villages urbanize. The growth of the cities brings us many huge changes.

　　There are more job opportunities in the cities. For instance, China will hold the Olympic Games in Beijing in 1008. The government is amplifying the size of Beijing to build new gyms in order to hold it excellently. Obviously, people in the cities could gain a lot of new jobs.

　　Of course, the enormous size of cities also has bad effects. Pollution is becoming more and more serious all over the world with the amplification² of the cities. For example, the poisonous gas sent off by factories and automobiles³ has made the air unhealthy for people to breathe. Water waste keeps pouring into rivers and lakes; as a result, many water species are dying out. Furthermore, more people the city have, more rubbish we can find.

　　In a word, since each coin has two sides, we should be acquainted clearly with the reasons why the size of the cities has grown enormously and what it will bring us. Thus, we could make full use of the positive effects and overcome the negative effects.

1 amplifying   

放大，扩大( amplify的现在分词 )； 增强； 详述

参考例句：

• Often they use borrowed funds, amplifying their gains and losses. 他们通常会用借贷的资金交易，从而放大收益或损失。
• An amplifying type (or analog) device, as opposed to digital device. 放大器类（或模拟）器件，相对于数字器件而言的。

2 amplification   

n.扩大，发挥

参考例句：

• The voice of despair may be weak and need amplification.绝望的呼声可能很微弱，需要扩大。
• Some of them require further amplification.其中有些内容需进一步详细阐明。

3 automobiles   

n.汽车( automobile的名词复数 )

参考例句：

• When automobiles become popular,the use of the horse and buggy passed away. 汽车普及后，就不再使用马和马车了。 来自《简明英汉词典》
• Automobiles speed in an endless stream along the boulevard. 宽阔的林荫道上，汽车川流不息。 来自《现代汉英综合大词典》