参考答案和解析
正确答案:
【参考译文】
This sounds somewhat sensational, but it is a simple plain truth: a person living alone consumes much more natural resources than the average a person does when living together with another one. For example, if a person lives by himself in a house which can house two people, the resources used to build the house are partly wasted, and so are water and electricity. So we can see one plus one is less than two. Smaller families mean more families have to be established for the same number of people. As a result, cities get larger and larger, doing serious damage to the surrounding habitats of many species.
Sure it is impossible to force single people to get married for the protection of the environment. However, to conserve natural resources, we can at least do our best to choose a way of life that is environment-friendly.
解析:
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