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VOA慢速英语2003年-发展与科学 Solar Cookers

时间:2005-06-03 16:00来源:互联网 提供网友:vipnoble   字体: [ ]
    (单词翻译:双击或拖选)


By Jill Moss1
Broadcast: July 28, 2003
This is Bill White with the VOA Special English Development Report.
Millions of people around the world cook their food over a smoky fire every day. It is often difficult to find wood for the fire. People who do not have wood must spend large amounts of money on cooking 2)fuel. However, there is a much easier way to cook food using energy from the sun.
Solar cookers, or ovens3, have been used for centuries. A Swiss scientist made the first solar oven2 in seventeen-sixty-seven. Today, people are using solar cookers in many countries around the world. People use solar ovens to cook food and to heat drinking water to kill bacteria and other harmful 3)organisms.
There are three kinds of solar ovens. The first is a box cooker. It is designed with a special wall that shines or reflects sunlight into the box. Heat gets trapped under a piece of glass or plastic covering the top of the cooker. A box oven is effective for slow cooking of large amounts of food.
The second kind of solar oven is a 4)panel5 cooker. It includes several flat walls, or panels6, that directly reflect the sun's light onto the food. The food is inside a separate container of plastic or glass that traps heat energy. People can build panel cookers quickly and with very few supplies. They do not cost much. In Kenya, for example, panel cookers are being 5)manufactured for just two dollars.
The third kind of solar oven is a parabolic cooker. It has rounded walls that aim sunlight directly into the bottom of the oven. Food cooks quickly in parabolic ovens. However, these cookers are hard to make. They must be re-aimed often to follow the sun. Parabolic cookers can also cause burns and eye injuries if they are not used correctly.
You can make solar ovens from boxes or heavy paper. They will not catch fire. Paper burns at two-hundred-thirty-two degrees Celsius8. A solar cooker never gets that hot. Solar ovens cook food at low temperatures over long periods of time. This permits people to leave food to cook while they do other things.
To learn more about solar cooking, you can write to Solar Cookers International. The address is nineteen-nineteen Twenty-First Street, Sacramento, California, nine-five-eight-one-four, U-S-A. Or you can visit the group's Internet Web site. The address is www.solarcooking.org.
This VOA Special English Development Report was written by Jill Moss.
注释:
1) solar [5sEulE] adj.太阳的,日光的
2) fuel [fjuEl] n.燃料
3) organism4 [5C:^EnizEm] n.生物体,有机体
4) panel [5pAnl] n.面板,嵌板
5) manufacture7 [7mAnju5fAktFE] vt.制造,加工


点击收听单词发音收听单词发音  

1 moss X6QzA     
n.苔,藓,地衣
参考例句:
  • Moss grows on a rock.苔藓生在石头上。
  • He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
2 oven iJuxQ     
n.烤炉;烤箱
参考例句:
  • You put food inside an oven to cook it.你把食物放进烤箱里热一下。
  • She baked bread in an oven.她用烤炉烤面包。
3 ovens f364282231931d30f5050a90b691a40d     
n.烤箱,炉( oven的名词复数 )
参考例句:
  • Bakers bake in huge ovens. 面包师用大烤炉烤面包。 来自《简明英汉词典》
  • Cleaning ovens is a real fag. 清洗烤箱是一件累人的活。 来自辞典例句
4 organism PRKzX     
n.生物,有机体;(如生物的)机体、有机组织
参考例句:
  • The economy is not a mechanical device but a living organism.经济不是一套机械装置,而是活的有机体。
  • Selection will root out such organism.自然选择将把这些物种消灭掉。
5 panel l4IzD     
n.面,板,专门小组,控制板,仪表盘
参考例句:
  • The unusual control panel on the walls caught our attention.墙上不同寻常的控制板引起了我们的注意。
  • The panel of judges included several well-known writers.评判小组中包括几位知名作家。
6 panels 43e98c51bf989c94bea2f73f4eda1028     
镶板( panel的名词复数 ); 面; (门、墙等上面的)嵌板; 控制板
参考例句:
  • One of the glass panels in the front door was cracked. 前门的一块方玻璃破裂了。
  • Make sure the panels are treated with a wood preservative. 确保镶板用木材防腐剂处理过。
7 manufacture zB9xl     
n.产品,制造,制造业;vt.制造,加工;vi.参与制造
参考例句:
  • The equipment is of our own manufacture.这设备是我们自己制造的。
  • Plastic is an important manufacture.塑料是种重要产品。
8 Celsius AXRzl     
adj.摄氏温度计的,摄氏的
参考例句:
  • The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
  • The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
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TAG标签:   voa  发展与科学  sola  cooker
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