英语听力：新概念英语第四册单词MP3 Lesson 31
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英语听力：新概念英语第四册单词MP3 Lesson 32
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英语听力：新概念英语第四册单词MP3 Lesson 33
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英语听力：新概念英语第四册单词MP3 Lesson 34
Lesson 34 Adolescence 青春期 First listen and then answer the following question. 听录音，然后回答以下问题。 What do adolescents respect in parents? Parents are often upset when their children praise the homes of their friends and reg
英语听力：新概念英语第四册单词MP3 Lesson 35
When will it be possible for us to think seriously about colonising Mars? The Moon is likely to become the industrial hub of the Solar System, supplying the rocket fuels fro its ships, easily obtainable from the lunar rocks in the from of liquid oxyg
英语听力：新概念英语第四册单词MP3 Lesson 36
Lesson 36 The cost of government 政府的开支 First listen and then answer the following question. 听录音，然后回答以下问题。 What is the most important factor, both in government or business, for keeping running costs low? If a natio
英语听力：新概念英语第四册单词MP3 Lesson 37
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英语听力：新概念英语第四册单词MP3 Lesson 38
Lesson 38 acidic adj. 酸的，酸性的 alcohol n. 酒精 bactericidal adj. 杀菌的 carbonated adj. 碳化的，碳酸的 contamination n. 污染 disinfectant n. 消毒剂 ethanol n. 乙醇 intermittent adj. 间歇的，断断续续的 leakage n. 泄
英语听力：新概念英语第四册单词MP3 Lesson 39
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英语听力：新概念英语第四册单词MP3 Lesson 40
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得 10 到 30 积分的奖励 ! Thank you ！
英语听力：新概念英语第四册单词MP3 Lesson 41
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英语听力：新概念英语第四册单词MP3 Lesson 42
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英语听力：新概念英语第四册单词MP3 Lesson 43
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英语听力：新概念英语第四册单词MP3 Lesson 44
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英语听力：新概念英语第四册单词MP3 Lesson 45
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得 10 到 30 积分的奖励 ! Thank you ！
