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作者:21ST    来源:高中版第46期    日期: 2010-12-14
外研版高一年级:Newspaper and magazines

关键词:Newspapers; news stories; space; space travel

话题归类:热点话题Topical issues



Hole will close

南极臭氧洞有望消失

THE Antarctic Ozone Hole (南极臭氧洞) could close by 2050 because the level of CFCs (氟氯化碳) in

the atmosphere is now declining (下降), one of the world's leading scientists said last Tuesday. CFCs are the main reason that a hole developed in the ozone layer over Antarctica. Paul Fraser, an Australian scientist said he had measured a decline in ozone-destroying gases since 2000.

New blind mouse

专为盲人设计的鼠标问世

BRITISH scientists have recently developed a mouse (鼠标) that will help blind people make better use out of computers. The mouse works by describing graphs (图表) through sound. The mouse vibrates (振动) when it meets a line on a graph, helping blind people make a picture of the graph in their heads. Tones (音调) change in pitch (音高) and tell the mouse user whether the line is rising or falling.



关键词:外研版 高一 Newspaper and magazines 热点话题Topical issues



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