5. One reasonis that society rewards people who are thin and healthy-looking.
其中一个原因是，这个社会会优待苗条和看起来健康的人。
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6. One clear reasonis that a well-chosen book is a wonderful collection of words and expressions.
一个很明显的原因是，一本精心挑选的书是一本很棒的词汇表达集。
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7. Perhaps the prime reasonis that drug addicts may commit crimes when they are in short of money.
或许最主要的原因是有毒瘾的人在缺钱的时候可能会犯罪。
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8. Another reasonis that it helps pupils to understand the culture and background of the society they live in.
另一个原因是它帮助学生了解他们所生活的社会的文化和背景。
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9. One reasonis that banks must compete for customers who will switch to another bank if they are dissatisfied with the service they receive.
其中一个原因是，银行必须争夺那些对它们提供的服务不满意就会转投其他银行的客户。
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10. One reasonis that more countries are big oil producers now, so the nations suffering from the price drop account for a larger share of the global economy.
13. I suspect the reasonis a deep-rooted love of fire.
我怀疑是出于对火焰根深蒂固的爱。
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14. The reasonis they relate to decisions you should make.
原因是它们关系到你应做的决定。
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15. The reasonis obvious: the graying of America means jobs.
原因是显而易见的：美国的人口老龄化意味着更多工作机会。
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16. One reasonis that going to the cinema is generally a social activity.
原因之一是，看电影通常是一种社交活动。
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17. The reasonis that rich volcanic soil makes the land fantastic for farming.
原因是，肥沃的火山土壤使这片土地极适于农业。
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18. Their reasonis that if there is no road, their bumper crop will just rot in the field.
他们的理由是，如果没有路，丰收的作物将只会烂在田里。
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19. "The reason is," said the Gryphon, "that they would go with the lobsters to the dance."
“这是因为，”鹰头怪说，“它们要和龙虾一起去跳舞。”
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20. The chief reasonis that American schools don't tend to seriously consider looking abroad.
主要原因是美国的学校往往不考虑向国外寻找校长。
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21. The reasonis the books I bought don't have a due date! I don't need to return those books.
原因是我买的书没有到期日！我不需要还那些书。
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22. But perhaps the most significant reasonis that the issue has always been so politically charged.
但或许最大的原因在于，这一议题一直高度政治化。
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23. If sharks bite you, says Doctor Clark, the reasonis usually because of mistaking you for its natural food.
克拉克博士说，如果鲨鱼咬了你，原因通常是因为把你错认为它的天然食物。
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24. The reasonis that when carbon is priced, those emissions reductions that are least costly to implement will happen first.
原因在于，当碳被标价时，那些实行的减排措施中成本最低的将会先实施。
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25. One reasonis straightforward: on many trees, the leaves that are the reddest are those on the side of the tree which gets most sun.
有个原因很简单：在许多树上，最红的叶子是那些在树的一侧得到最多阳光的叶子。
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26. The reasonis that all girls schools encourage women to enter fields traditionally dominated by men such as science, technology and engineering.
原因是所有女校都鼓励女性进入科学、技术和工程等传统上由男性主导的领域。
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27. To quote one medical opinion, "Thousands of people drift through life suffering from the effects of too little sleep; the reasonis not that they can't sleep."
