20.13风能
章节大纲
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Is this what a wind farm looks like?
::这就是风力农场的样子吗?It's a strange sight. You're driving up the road in Southern California, and sprouting from the ground is a pack of windmills! Windmills are becoming more common on the eastern side of the mountains . This is because the wind comes off the Pacific Ocean and funnels through mountain passes. The wind is strong and California wants to take advantage of it.
::奇怪的景象。你在南加利福尼亚州开着公路, 从地上飞来是一堆风车! 风车在山的东边越来越常见。 这是因为风从太平洋吹来, 通向山道的漏斗。 风很强劲,加利福尼亚想要利用它。Wind Power
::风能Winds are funneled through passes in mountain ranges. Altamont Pass in California is the site of many wind turbines.
::加利福尼亚的阿尔塔蒙特山口是许多风力涡轮机的所在地。The energy from the creates wind ( Figure ). Wind energy moves by convection . The Sun heats some locations more than others. Warm air rises, so other air rushes in to fill the hole left by the rising air. This horizontal movement of air is called wind.
::产生风的能量( 图表 ) 。 风能通过对流移动。 太阳对某些地点的热量比其他地点高。 温暖的空气上升, 所以其他空气会冲进来填满上升的空气留下的洞。 这种水平的空气移动被称为风。Wind as a Resource
::以风为资源资源Wind power uses moving air as a source of energy. Some types of wind power have been around for a long time. People have used windmills to grind grain and pump water for hundreds of years. Sailing ships have depended on wind for millennia. Wind is now used to generate electricity. Moving air can make a turbine spin, just like moving water can. Moving air has kinetic energy . When wind hits the blades of the turbine, the kinetic energy makes the blades move. The turbine spins and creates electricity.
::风力发电利用空气作为能源来源。有些类型的风力发电已经存在了很长时间。人们用风车磨磨谷物和泵水已有数百年之久。帆船依靠风发电已有数千年之久。风力发电现已用于发电。风力发电可以使涡轮机旋转,就像移动水能一样。移动空气具有动能。当风击中涡轮的叶片时,动能使刀片运动。涡轮机旋转并创造电力。Wind Power Advantages and Disadvantages
::风能优势和劣势Wind power has many advantages. It is clean: it does not release pollutants or carbon dioxide. It is plentiful almost everywhere. The technology to harness wind energy is being developed rapidly.
::风能有许多优点。 它清洁: 它不会释放污染物或二氧化碳。 它几乎遍布各地。 利用风能的技术正在迅速发展。Wind power also has problems. Wind does not blow all of the time, so wind energy must be stored for later use. Alternatively, another energy source needs to be available when the wind is not blowing. Wind turbines are expensive. They can wear out quickly. Finally, windmills are not welcomed by residents of some locations. They say that they are unattractive. Yet even with these problems, wind turbines are a competitive form of renewable energy.
::风力也存在问题。 风力不会随时吹响, 所以风能必须储存起来供日后使用。 或者, 风能需要另一种能源, 当风能没有吹起时, 风力涡轮机会很昂贵。 风力涡轮机会很快耗尽。 最后, 风力车不会受到某些地方居民的欢迎, 他们说风力车不吸引人。 但是, 即使有这些问题, 风力涡轮机也是一种具有竞争力的可再生能源形式。Many states are currently using wind power. Wind turbines are set up in mountain passes. This is common in California, where cool Pacific Ocean air is sucked across the passes and into the warmer inland valleys .
::许多州目前正在使用风力。 风力涡轮机是在山道上安装的。 这在加利福尼亚州很常见,那里的太平洋凉爽空气被吸过路口,进入较温暖的内陆山谷。Summary
::摘要- Wind contains kinetic energy. The energy can move a turbine. This generates electricity.
::风能含有动能,能移动涡轮机,能发电
- Wind power is clean. It does not release pollutants or greenhouse gases.
::风能是干净的,不会释放污染物或温室气体
- Some people complain about the spread of windmills across certain locations, but, still, the use of wind energy is increasing.
::有些人抱怨风车在某些地方蔓延,但风能的使用仍在增加。
Review
::回顾- Describe how wind energy can be harnessed.
::说明如何利用风能。
- What are the upsides of using wind power?
::使用风力有什么好处?
- What are some of the downsides of using wind power?
::使用风力有什么不利之处?
- Why do you think that wind power use is increasing?
::你认为为什么风能的使用在增加?
- Wind contains kinetic energy. The energy can move a turbine. This generates electricity.
