题干

在放学的路上,明明看到邻居家的两个小孩胖胖和墩墩正拿着不同颜色的玻璃片看太阳,胖胖说:“太阳是红色的”,墩墩却说:“太阳是蓝色的”.请你 用所学的物理知识帮助明明分析一下,胖胖和墩墩分别拿的是什么颜色的玻璃片?为什么胖胖看到的是红色的太阳,而墩墩看到的是蓝色的太阳?

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答案(点此获取答案解析)

胖胖拿的是红色玻璃片,墩墩拿的是蓝色玻璃片;因为透明物体的颜色由它所吸收的色光的颜色决定,而其他色光会被吸收,所以红色玻璃片只能透过红光,看到的太阳是红色的,而蓝色玻璃片只能透过蓝光,所以看到的玻璃片是蓝色的。

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阅读理解

    Many people have tried to simplify (简化) the spelling of English words. Unlike other languages, English sometimes spells the same sounds in very different ways. For example, there is “light” but “white”, “loan” but “phone”, and there are at least seven different ways of pronouncing “ough”, “though”, “through”, “bough”, “cough”, “enough”, “ought” and “thorough”.

    The American President Theodore Roosevelt almost succeeded in simplifying English spelling. In 1906, one of the richest men in the United States of America, Andrew Carnegie, started the Simplified Spelling Board whose plan was to make the spelling of words nearer to the way they sound. For example, the word “though” would be spelt “though” and “through” would become “thru”. Other people on the board were Melvil Dewey, the head of the New York libraries, and Professor Brander Matthews of Columbia University. They explained their idea to President Roosevelt who thought that it was indeed logical (合理的).He immediately instructed the government printer to use simplified spelling in all government letters.

    But people did not like the change — even if it made life easier— and the new, simpler spelling was not popular. More importantly, when the American politicians discussed the plan, they did not like it either. Because Roosevelt did not want to have any problems with the politicians, he changed his mind and told the printer to go back to the old way of spelling.

    Since then no one in any government has dared to simplify English spelling. However, people do simplify some words, mainly in advertisements. For example, we often see “tonite” instead of “tonight” and “thru” instead of “through”.