英语听力精选进阶版 11487

 

100 Solar-powered lamp and charger 22 Oct 2010

Fri, 22 Oct 10

A lamp that runs off sunlight. Neil MacGregor, Director of the British Museum, looks at the final object in the series: a solar-powered lamp with a charger that can bring cheap light and power to people around the world with no access to the electric grid¹. Simple, cheap and clean – is this the revolutionary technology of our future? With contributions from Aloka Sarder, a mother and adult student in West Bengal, and Nick Stern², expert on the economics³ of climate change.

1 grid   

n.高压输电线路网；地图坐标方格；格栅

参考例句：

• In this application,the carrier is used to encapsulate the grid.在这种情况下，要用载体把格栅密封起来。
• Modern gauges consist of metal foil in the form of a grid.现代应变仪则由网格形式的金属片组成。

2 stern   

adj.严厉的，严格的，严峻的；n.船尾

参考例句：

• The ship was in a blaze from stem to stern.整艘船从头到尾都着火了。
• The headmaster ruled the school with a stern discipline.校长治校严谨。

3 economics   

n.经济学，经济情况

参考例句：

• He is studying economics,which subject is very important.他正在学习经济学，该学科是很重要的。
• One can't separate politics from economics.不能把政治与经济割裂开来。