[導(dǎo)讀]公共英語等級考試二級閱讀文章精選段落四十四
全國英語等級考試二級閱讀文章段落精選(44)
Photovoltaic technologies use semiconductors to trap the son's light and convert it to electricity. Such solar power is already being used to run all sorts of devices, from calculator to the Hubble Telescope in outer space. These accomplishments show that harnessing solar power is possible, but it remains expensive and in efficient. Scientists are still trying to find ways to make solar power a more widely used energy source. It is a big challenge, but many believe that the future of our planet depends on it.
光電技術(shù)利用半導(dǎo)體捕獲太陽光能，然后把太陽光能轉(zhuǎn)換成電能。這類太陽能已應(yīng)用在諸如計算機(jī)和哈伯太空望遠(yuǎn)鏡等各種裝置中。 上述各項應(yīng)用成果均證明了太陽能是可以加以利用的，只是還很昂貴，而且成效還不夠明顯。科學(xué)家們至今仍在設(shè)法充分利用太陽能。雖然這是一大挑戰(zhàn)，但是許多人都認(rèn)為地球的未來就靠太陽能了。
全國英語等級考試二級閱讀文章段落精選(44)
Photovoltaic technologies use semiconductors to trap the son's light and convert it to electricity. Such solar power is already being used to run all sorts of devices, from calculator to the Hubble Telescope in outer space. These accomplishments show that harnessing solar power is possible, but it remains expensive and in efficient. Scientists are still trying to find ways to make solar power a more widely used energy source. It is a big challenge, but many believe that the future of our planet depends on it.
光電技術(shù)利用半導(dǎo)體捕獲太陽光能，然后把太陽光能轉(zhuǎn)換成電能。這類太陽能已應(yīng)用在諸如計算機(jī)和哈伯太空望遠(yuǎn)鏡等各種裝置中。 上述各項應(yīng)用成果均證明了太陽能是可以加以利用的，只是還很昂貴，而且成效還不夠明顯。科學(xué)家們至今仍在設(shè)法充分利用太陽能。雖然這是一大挑戰(zhàn)，但是許多人都認(rèn)為地球的未來就靠太陽能了。