题目内容
When a block of ice is taken into a warm room, it becomes ________
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A. smaller and smaller B. thicker and thicker
C. less and less D. fewer and fewer
请先阅读下面短文,掌握其大意,然后从方框中所给的词中选出最恰当的10个,用其适当形式填空,并将答案填写到答题卷的相应位置。每个词限用一次。(每小题1分)
color, until, paint, find, knowledge, page, century, culture, invent, one, early, publish |
??? It’s said that Wood-block printing(木版印刷) was invented sometime between the 4th and the 7th? 1.
? in China. The earliest book 2.? in 868 and was found in a Dunhuang
cave. Wood-block printing took a long time because a new block was needed for every? 3.
in a book. By the 11th century printed books could be? 4. all over China. They included books of Confucius' thoughts, dictionaries, and books on maths. In 1340, books could be printed using two ? 5.? - black and red. Although the Chinese learnt about printing so 6.? , printing was not introduced in other parts of the world for hundreds of years. It is thought that when the great Italian traveler Marco Polo visited China in the 13th century, he saw printed books. It is possible that Marco Polo brought that ? 7. to Europe. But printed books did not come to Europe 8. 1450 when a German called Johann Gutenberg ? 9. a printing machine. Twenty-four years later, in 1474, an Englishman called William Caxton printed the ? 10. printed book in English. His second book was about the game of chess. Caxton printed about a hundred books, and some can still be found today in museums.
Listening to an Ipod, playing loud video games and going to see the movies are harmful to your hearing. ___71____
Block(堵住),walk and turn—that’s what hearing scientists want you to do when you face a loud noise. Block the noise from entering your ears. 72 And turn it down.
About 15% of all school-age children live with some hearing loss. And it’s a growing problem. _ 73
Block It Out!
74 It starts at zero. Sounds that are too loud or sounds that last too long can harm the inner ear’s hair cells (细胞)。 Most people don’t know that listening to headphones at full volume(音量) is harmful. So turn down the volume and protect your ears.
What’s Too Loud?
75 And 60 decibels is totally safe.
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A. A 2011 study by Harvard Medical School found that teenage girl have more hearing problems than teenager boys. B. Your body might try to warn you when a sound is too loud to be safe. C. Walk away from it. D. Loud noise can break the inner ear, but we can avoid the noise pollution. E. the sound unit is decibel(分贝)。 |