As the world becomes increasingly populated, it is also becoming alarmingly polluted. We use more resources, produce more waste, and cause more environmental distress than ever before. Fortunately, there are many ways that you can help to counter the negative effects that we force on the environment. One of these is driving an electric car. This benefits not only the environment but alsoWhy do electric cars produce much less pollution?A. They are gas-powered which is easy to control.B. Their energy is generated through large sources.C. Their energy comes from different smaller sources.D. They themselves send out almost no exhaust.
As the world becomes increasingly populated, it is also becoming alarmingly polluted. We use more resources, produce more waste, and cause more environmental distress than ever before. Fortunately, there are many ways that you can help to counter the negative effects that we force on the environment. One of these is driving an electric car. This benefits not only the environment but also Why do electric cars produce much less pollution? A. They are gas-powered which is easy to control. B. Their energy is generated through large sources. C. Their energy comes from different smaller sources. D. They themselves send out almost no exhaust.
题目解答
答案
解析
本题考查电动汽车污染较少的原因。关键在于理解电动汽车与传统燃油车的核心区别：电动汽车在行驶过程中不燃烧燃料，因此不会直接排放尾气。选项需紧扣这一核心点，排除干扰项。
选项分析
选项A
“它们是燃气驱动的，容易控制”
- 错误。电动汽车并非燃气驱动，而是电力驱动。选项中的“燃气”与“容易控制”均与污染减少无关。
选项B
“它们的能量来自于大型能源”
- 不准确。虽然电力可能来自大型发电厂（如燃煤电厂），但污染减少的关键在于车辆本身是否排放，而非能源来源的规模。
选项C
“它们的能量来自不同的小型能源”
- 不准确。能量来源的大小或类型（如小型能源）并非直接决定污染量，关键在于是否产生尾气排放。
选项D
“它们本身几乎不排放废气”
- 正确。电动汽车通过电池供电驱动，无需燃烧燃料，因此行驶过程中几乎不产生尾气，这是污染减少的直接原因。