2016年7月28日 星期四

開車能兼顧環保嗎? Can Cars Be Environmentally Friendly?


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【英語學習Plus】 開車能兼顧環保嗎? Can Cars Be Environmentally Friendly?
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開車能兼顧環保嗎? Can Cars Be Environmentally Friendly?

Do you want a clean environment? If you live in a city, you may be breathing large amounts of unhealthy smog. Much of a city's smog or air pollution is caused by the gasoline engines in cars. Engineers have designed many cars that cause no air pollution. These nonpolluting automobiles are environmentally friendly and are called green cars. An electric car may also be called an electric vehicle or EV. Almost all green cars are EVs.

An EV has a simple, quiet, and efficient electric motor instead of a complex gasoline engine. If you look at a car, most likely you can't tell if it gets its power from electricity or gasoline. But when it is moving, an EV is much quieter than a gasoline-powered car. No noise pollution is another benefit of the electric car. Since EVs do not burn any gasoline, they reduce your need to pay for expensive foreign oil. That is one of the reasons EVs are usually cheaper to drive than gasoline-powered cars.

Some electric cars get most of their electricity from a battery. Some EVs use fuel cells to make electricity from hydrogen and oxygen. Other EVs make electricity from the sunlight and are sometimes called solar cars. Some cars have a powerful electric motor, a large battery, and a gasoline engine connected to a generator. These vehicles are called hybrid cars. If their gasoline engines are run to make electricity, they pollute the atmosphere.

A hundred years ago, there were many reliable electric cars, but their batteries often needed to be slowly recharged. Their weak batteries meant a limited driving range. Modern EVs have powerful and quickly rechargeable batteries.

Today's green cars are environmentally friendly. They are also convenient to drive. Driving a green car is a fun way to go!

 

你想要一個沒有污染的環境嗎?若是你居住在城市中,你可能會吸進大量有害健康的煙霧。城市裡大部分的煙霧或空氣污染都肇因於汽車所使用的汽油引擎。工程師們研發了許多不會造成空氣污染的汽車,這些無污染的汽車對環境無害,故被稱為「環保車」。電動汽車或電動車(英文簡稱EV),幾乎所有的環保汽車都 是電動車。

電動汽車使用簡單、安靜和有效率的電動馬達,而非複雜的汽油引擎。若是用肉眼看,你可能無法分辨它的動力來源是電力還是汽油。但是當它開動時,電動汽車比用汽油驅動的汽車安靜許多。不會製造噪音污染,是使用電動汽車的另一項好處。由於電動汽車不燃燒汽油,使你可以免於支付高額的國際油價,這也是為什麼駕駛電動汽車通常比駕駛汽油驅動的汽車便宜的原因之一。

有些電動汽車的電力來源大部分來自蓄電池。有些電動汽車用燃料電池將氫和氧轉換成電力。有些電動汽車以太陽光當成電力來源,這種汽車有時又稱作太陽能汽車。有些汽車的發電機同時連接了強力的電動馬達、大型電池、還有汽油引擎,這些車子就叫做混合動力汽車。如果這些車輛的汽油引擎為了產生電力而開始運作,就會污染空氣。

一百年前就有許多可靠的電動汽車了,但是它們的電池充電的速度很慢,微弱的電池使得行駛的範圍受到限制。現代電動汽車的電池,不僅效力大,而且充電速度也快。

今日的環保車不但對環境有益,同時也很方便行駛。駕駛環保車是個有趣的趨勢!

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