出版時間:2009-7 出版社:安徽科學技術出版社 作者:馬德高 主編 頁數(shù):128 字數(shù):245000
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內(nèi)容概要
第一部分閱讀理解考查特點透視、第二部分閱讀理解常考題型分析、第三部分閱讀理解應試策略指導、第四部分分類基礎訓練、一時文新聞、二社會生活、三科普應用、四文化教育、五環(huán)境地理、第五部分綜合模擬強化訓練和第六部分答案解析等等。
書籍目錄
第一部分 閱讀理解考查特點透視
第二部分 閱讀理解??碱}型分析
第三部分 閱讀理解應試策略指導
第四部分 分類基礎訓練
時文新聞
社會生活
科普應用
文化教育
環(huán)境地理
第五部分 綜合模擬強化訓練
第六部分 真題自測
答案詳解詳析
章節(jié)摘錄
版權頁: Babies born in summer are more likely to becomeshort-sighted in late life,a study has shown. As many as a quarter of all cases of shortsightedness are caused by too great an exposure to sunlightin the first weeks of life,say eye experts. They are advising all parents to put sunglasseson their babies during the first weeks. Scientists had already established that overexposure to sunlight caused short-sightedness inanimals. Researchers who compared the months in whichbabies were born with whether they needed glasseslater on say the principle also applies to humans. A study of almost 300 000 young adults-thelargest of its kind-showed that those born in June orJuly had a 25 percent greater chance of becomingseverely short-sighted than those born in December orJanuary. Research leader Professor Michael Belkin,of TelAviv University,said it was because prolongedillumination(光照) causes the eyeball to lengthen,causing short-sightedness. Hence the more light a newborn is exposed to,the more the eyeball lengthens and the worse theshort-sightedness will be. The mechanism which lengthens the eyeball isassociated with levels of melatonin,apigment which protects the skin againstharmful rays of the sun. In young babies not enough metatonin is releasedas protection,meaning they are more vulnerable tosunburn and changes to eyeball shape. Sight expert Professor Daniel O'Leary,of AngliaRuskin University in Cambridge,said," At themoment we don't know the precise cause of why lightexposure affects sight,hut the evidence proves that itis one of the reasons for people becoming short-sighted. "
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《星火英語?巔峰訓練:閱讀理解135篇(高考)》由安徽科學技術出版社出版。
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