雅思大作文7分范文及解析：人口过多引发问题

观点类大作文，社会类话题

Most of world's problems are caused by over-population. To what extent do you agree or disagree？

题目来源：2018年9月15日亚太机考雅思大作文

1、题目大意

世界上的大多数问题都是由人口过剩引起的。你是否同意？

2、思路解析

这是一道观点类大作文，聊得是人口过剩引发的问题。题目阅读上不难，审题时需要注意观点要围绕“over-population”，同意需要说明人口过多如何引发问题，反对的话需要说明同样的问题实际是由哪些因素引发了。下面，月半鸭和大家一起来看下具体观点。

首先来看赞同的角度，有两方面。

一方面随着人口的增加，人们资源的需求也在增加。例如，人口增长导致了对食物、水、土地和能源的需求增加，这可能导致资源短缺，甚至可能引发冲突和战争。同时，获取食物和能源过程中的过量开采和捕捞会对自然环境和生物多样性造成破坏，大量工业品的生产和废弃还会对空气、水和土地造成污染。

另一方面过度人口可能导致社会问题，如失业、贫困和不平等。随着人口的增加，就业机会可能变得更加稀缺，而且可能会有更多的人陷入贫困。

反对角度来看，同样可以有两方面。

一是诸如资源不足、贫富差距等问题可能并不是因为人口过多，而是资源分配不均。就以粮食问题为例，世界上或许有足够的食物供应，但是由于物流、国际政策及资本垄断等原因，导致很多人无法获得足够的食物。

二是有些问题无法解决可能因为个人意识不到位以及政策错误。比如人们对于环境保护的意识不足，或是政府为了经济发展忽视了环境保护，那么即使人口减少，环境问题也可能仍然存在。

3、提纲

4、高分范文示例

Many individuals believe that overpopulation is to blame for most of the world's problems, which have worsened dramatically over the last several decades as the global population has skyrocketed. I agree with this point of view and believe that a densely populated society is destructive to both human life and the environment.

There is no doubt that overcrowding exerts several negative repercussions on human life. In terms of living conditions, overcrowding may make life less enjoyable. There will be a housing scarcity if economic growth and productivity fall behind population expansion. As a result, there would be congested housing and even homeless individuals living on the streets. The same rule applies to food and other necessary good shortages caused by overpopulation. In locations with low productivity and a poor climate, however, this food demand can barely be met. In addition, these food shortages result in higher food prices, which exacerbates the plight of individuals who reside in impoverished regions.

In addition to the aforementioned practical challenges, overcrowding also causes a number of environmental issues. In the first place, population strains the planet's nonrenewable natural resources. As fuels are required for the majority of transportation, a growing population may also raise the demand for fossil fuels, hence accelerating the depletion of natural resources and causing a potential energy crisis. Secondly, overpopulation causes global warming by emitting additional carbon dioxide. Humans are not the only source of rising carbon dioxide levels; livestock and transportation emissions also have an impact. In addition, more trees, which were intended to convert exhaled carbon dioxide into oxygen, are being cut down to suit the rising demands of human activities, leaving the exhaled carbon dioxide unabsorbed.

In conclusion, I feel that the dilemma of overpopulation is accountable for the majority of the world's challenges and should be a top priority for many national authorities.

5、相关词汇和语法结构

Overpopulation   人口过量

decrease life quality   生活质量降低

Economic development and productivity   经济发展与生产力

Shortage of accommodation   住房短缺

Food shortage   粮食短缺

Unrenewable natural resources   不可再生自然资源

Fossil fuels   化石燃料

Energy crisis   能量危机

Carbon dioxide   二氧化碳

Global warming   全球变暖