問題詳情

[Reading 4 for Q. 72~75]    Air is the ocean we breathe. Air supplies us with oxygen which is essential for our bodies to live.Human activities can release substances into the air called pollution, some of which can cause problems forhumans, plants, and animals.    There are several main types of pollution. One type of air pollution is the release of particles into theair from burning fuel for energy. The exhaust from burning fuels in automobiles, homes, and industries is amajor source of pollution in the air. Another type of pollution is the release of noxious gases, such as sulfurdioxide, carbon monoxide, nitrogen oxide and chemical vapors. These can continue to react once they arein the atmosphere, forming smog and acid rain.    Indoor pollution also needs to be considered. This is the pollution that occurs in homes, offices, andschools. Some of these pollutants can be created by indoor activities such as smoking and cooking. InTaiwan, we spend about 80-90% of our time inside buildings, and so our exposure to harmful indoorpollutants can be serious. It is therefore important to consider both indoor and outdoor air pollution.
72. What is the main purpose of this passage?
(A) to propose solutions to Taiwan’s pollution problem
(B) to advise readers to stay indoors
(C) to explore different kinds of air pollution
(D) to focus on indoor pollution

參考答案

答案：C
難度：非常簡單0.923077
統計：A(0),B(0),C(12),D(1),E(0)

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