Lesson 3 Matterhorn man 马特霍恩山区人 First listen and then answer the following question. 听录音 ...

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Lesson 6 The sporting spirit 体育的精神 First listen and then answer the following question. ...

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Lesson 9 Royal espionage 王室谍报活动 First listen and then answer the following question. 听录音， ...

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Lesson 7 Bats 蝙蝠 First listen and then answer the following question. 听录音，然后回答以下问题。 ...

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Lesson 8 Trading standards 贸易标准 First listen and then answer the following question. 听录音，然 ...

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Lesson 16 The modern city 现代城市 First listen and then answer the following question. 听录音，然 ...

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Lesson 15 Secrecy in industry 工业中的秘密 First listen and then answer the following question. 听 ...

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Unit 2 Lesson 10 Silicon valley 硅谷 First listen and then answer the following question. 听录音， ...

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Unit 2 Lesson 12 Banks and their customers 银行和顾客 First listen and then answer the following qu ...

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Lesson 11 How to grow old 如何安度晚年 First listen and then answer the following question. 听录音 ...

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Lesson 13 The search for oil 探寻石油 First listen and then answer the following question. 听录音， ...

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Lesson 14 The Butterfly Effect 蝴蝶效应 First listen and then answer the following question. 听录音 ...

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Lesson 17 A man-made disease 人为的疾病 First listen and then answer the following question. 听录音 ...

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Lesson 48 Planning a share portfolio 规划股份投资 First listen and then answer the following questi ...

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Lesson 18 Porpoises 海豚 First listen and then answer the following question. 听录音，然后回答以下 ...

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Lesson 47 The great escape 大逃亡 First listen and then answer the following quesion. 听录音，然后 ...

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Lesson 41 Training elephants 训练大象 First listen and then answer the following question. 听录音， ...

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Lesson 19 The stuff of dreams 话说梦的本质 First listen and then answer the following question. 听 ...

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Lesson 45 Of men and galaxies 人和星系 First listen and then answer the following question. 听录音 ...

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Lesson 42 Recording an earthquake 记录地震 First listen and then answer the following question. 听 ...

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