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and Ford39。t fall asleep. They are not sure what causes sleep. The best conditions for sleep are good health and meal neither too big nor too small. No worries and a fortable place are important, too. They advise against two in bed. Strange things happen during sleep. For example, they move often. You would feel tired if you didn39。 They________________the old house and built several new ones. 18.他居然能在地震中活了下來,真是個奇跡。 it lends solidity to your slumbers, it gives you a perfect and grateful appreciation of a holiday. 不要害怕超負(fù)荷的工作會縮短你的壽命,不足三十歲的年齡,你的承受能力遠(yuǎn)不止如此 。 工作會增加你的食欲,工作會使你安然入睡,工作將會使你心滿意足地享受假日 。 ________________, they had nothing left on them. 21.我們相信只要我們認(rèn)真對待,一切都會順利。t fall asleep B. why one wakes up C. both A and B D. what causes sleep 39. The best conditions for sleep are ________. A. good health B. a meal neither too big nor too small C. no worries D. good health, limited meal, no worries and a good place 40. You would feel tired during sleep if you ________. A. moved too often B. slept on your back C. didn39。s were built in the first few years. 42. What do we know about Henry Ford from Paragraph 1? A. He made good use of ideas from others. B. He produced the first car in the world. C. He knew how to improve auto parts. D. He invented the production line. 43. Why did Henry Ford take part in the 1901 car race? A. To show off his driving skills. B. To draw public attention. C. To learn about new technology. D. To raise money for his new pany. 44. “That sale” in Paragraph 4 refers to________. A. the selling of Ford cars at reduced prices B. the sale of Model T to the mass of people C. the selling of a car to a Detroit doctor D. the sales target for the Ford Company 45. What was Henry Ford39。s ideas and make them better. And he made the whole factory a moving production line. In the early days of the automobile, almost every car maker raced his cars. It was the best way of gaining public notice. Henry Ford decided to build a racing car. Ford39。t it? Sleep puzzles science. Scientists and doctors would rather talk about why one can39。 Every d