Optical FiberPart I. Text-Translation:Passage 11Light is a form of electromagnetic energy. It travels at its fastest in a vacuum: 300000 kilometerssecond (approximately 186000 milessecond). 光是电磁能的一种形式
Exercises for Unit Five I. Fill in the blanks with the words in their proper forms:1. I need some ________ (many) wardrobes for my . Ben and I are much ________ (big) . The removal man and his
Unit Five Ⅰ..Text A Precious legacyLanguage Points 1. precious : a. of great value 贵重的珍贵的 Love is more precious than . legacy: n. money or property left to sb. in a will 遗产遗赠遗赠的财物 He was left a l
Unit FiveText Solve That Problem — with HumourWarm-up Activities1. How important is a sense of humour to social life Cite examples to illustrate your . Some people think a sense of humour is innate a
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Optimal Des
Reference Answer of the Paraphrase in Unit FiveAmerican Farms are increasingly agrobusiness: the family-size small farm important in the 19th century development of the American culture and of our pol
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