雅思大作文范文：人口涌向城市对环境的利弊

雅思大作文题目：

You should spend about 40 minutes on this task.

Write about the following topic:

More and more people move from the countryside to big cities.

Does this development bring more advantages or disadvantages to the environment?

Give reasons for your answer and include any relevant examples from your own knowledge or experience.

Write at least 250 words.

【话题分类】

环境类

【题目解析】

题目大意：越来越多的人从农村搬迁到大城市。该趋势给环境带来的优点更多还是缺点更多。

这个题目有一个陷阱，即“环境”，所以考生需要写“城市化对环境的好坏”，而非其他方面的优缺点。

这个题目属于“优劣势”，考生既要写出优点，也要写出缺点。我们可以按照“outweigh”题型的方式处理这个题目；如果“优大于劣”可以写“2个优点1个缺点”；如果“劣大于优”可以写“2个缺点和1一个缺点”。笔者的观点是“劣大于优”。

【写作思路】

Para 1=题目改写+个人观点

Para 2=缺点1（空气污染严重）

Para 3=缺点2（生物多样性受到威胁）

Para 4=优点1（环境保护的科技得到发展）

Para 5=总结段

【参考范文】

Nowadays,a growing proportion of rural residents are leaving their homes for large metropolises.Personally,I am inclined to the view that the drawbacks of this trend to the environment prevail over the benefits.

The key disadvantage is the deteriorating air quality in major cities.With more people pouring into and settling down in these places,the likelihood of them purchasing private vehicles that rely heavily on fossil fuels will be high.However,the consumption of these energy resources may well lead to excessive emissions of toxic fumes,including sulphur dioxide and consequently,air pollution will become an issue.

Another downside is that biodiversity will be threatened.The rapid expansion of cities occupies a great amount of land for the construction of multifarious types of infrastructure,such as airports,roads,shopping malls,and residential blocks,but a wide range of species of flora and fauna will become extinct during the process because their habitats are damaged.As a result,there will be fewer types of animals and plants on the Earth.

However,the advantages of more rural people relocating to megacities over the environment are worth considering,one of which is that the innovation of technology regarding environmental protection will be encouraged.Having realised the detrimental effects of human behaviour on the environment,scientists are endeavouring to experiment with environmentally friendly ways humans can develop.This can tackle the current challenges people are encountering and benefit future generations as well.

In conclusion,I agree that there are more negative outcomes than positive ones in terms of the environment if more and more individuals from the countryside migrate to metropolitan areas.Although inventing new technologies can be the solution to environmental issues,in my opinion,serious air pollution and the damage to biodiversity in cities are still major concerns at the moment.Therefore,experts should accelerate the progress of technology development to simultaneously ensure human advancement and environmental conservation.

【亮点词汇及短语】

1.rural residents农村居民

2.leave sp.for sp.离开…去…

3.large metropolises大城市

4.deteriorate(v.)恶化

5.pour into涌入

6.settle down定居

7.fossil fuels化石燃料

8.toxic fumes有毒气体

9.sulphur dioxide二氧化硫

10.biodiversity(n.)生物多样性

11.expansion(n.)扩张

12.multifarious(adj.)各种各样的

13.infrastructure(n.)基础设施

14.species of flora and fauna动植物种类

15.extinct(adj.)灭绝的

16.relocate to(v.)搬迁到

17.megacity(n.)大城市

18.environmental protection环境保护

19.human behaviour人类行为

20.endeavour(v.)努力

21.experiment with做实验

22.encounter(v.)遭遇

23.the countryside农村

24.migrate to移居到…

25.metropolitan areas城市地区

26.accelerate(v.)加速

27.simultaneously(adv.)同时

28.environmental conservation环境保护