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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 9 Royal espionage
Lesson 9 Royal espionage第9课 王室谍报活动First listen and then answer the following question.听录音，然后回答以下问题。What important thing did King Alfred learn when he penetrated the Danish camp o2012-03-06 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 10 Silicon valley
Lesson 10 Silicon valley第10课 硅谷First listen and then answer the following question.听录音，然后回答以下问题。What does the computer industry thrive on apart from anarchy?Technology trends may pus2012-03-06 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 11 How to grow old
Lesson 11 How to grow old第11课 如何安度晚年First listen and then answer the following question.听录音，然后回答以下问题。What, according to the author, is the best way to overcome the fear of death2012-03-08 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 12 Banks and their custome
Lesson 12 Banks and their customers第12课 银行和顾客First listen and then answer the following question.听录音，然后回答以下问题。Why is there no risk to the customer when a bank prints the customer&2012-03-08 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 13 The search for oil
Lesson 13 The search for oil第13课 探寻石油First listen and answer the following question.听录音，然后回答以下问题。What do oilmen want to achieve as soon as they strike oil?The deepest holes of all2012-03-09 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 3 Matterhorn man
Lesson 3 Matterhorn man第3课 马特霍恩山区人First listen and then answer the following question.听录音，然后回答以下问题。What was the main objective of early mountain climbers?Modern alpinists try to2012-03-01 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 7 Bats
Lesson 7 Bats第7课 蝙蝠First listen and then answer the following question.听录音，然后回答以下问题。In what way does echo-location in bats play an utilitarian role?Not all sounds made by animals ser2012-03-05 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 8 Trading standards
Lesson 8 Trading standards贸易标准First listen and then answer the following question.听录音，然后回答以下问题。What makes trading between rich countries difficult?Chickens slaughtered in the United2012-03-05 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 15 Secrecy in industry
Lesson 15 Secrecy in industry第15课 工业中的秘密First listen and then answer the following question.听录音，然后回答以下问题。Why is secrecy particularly important in the chemical industries?Two fact2012-03-12 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 16 The modern city
Lesson 16 The modern city第16课 现代城市First listen and then answer the following question.听录音，然后回答以下问题。What is the author's main argument about the modern city?In the organization2012-03-12 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 17 A man-made disease
Lesson 17 A man-made disease第17课 人为的疾病First listen and then answer the following question.听录音，然后回答以下问题。What factor helped to spread the disease of myxomatosis?In the early days of2012-03-13 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 18 Porpoises
Lesson 18 Porpoises第18课 海豚First listen and then answer the following question.听录音，然后回答以下问题。What would you say is the main characteristic of porpoises?There has long been a superstiti2012-03-13 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 19 The stuff of dreams
Lesson 19 The stuff of dreams第19课 话说梦的本质First listen and then answer the following question.听录音，然后回答以下问题。What is going on when a person experiences rapid eye-movements during sle2012-03-14 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 20 Snake poison
Lesson 20 Snake poison第20课 蛇毒First listen and then answer the following question.听录音，然后回答以下问题。What are the two different ways in which snake poison acts?How in came about that snakes2012-03-14 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 21 William S.Hart and the
Lesson 21 William S.Hart and the early 'Western' film第21课 威廉.S. 哈特和早期限的‘西部’影片First listen and then answer the following question.听录音，然后回答以下问题。How did W2012-03-15 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 22 Knowledge and progress
Lesson 22 Knowledge and progress第22课 知识和进步First listen and then answer the following question.听录音，然后回答以下问题。In what two areas have people made no 'progress' at all?Why does2012-03-15 编辑：Richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 23 Bird flight
Lesson 23 Bird flight第23课 鸟的飞行方法First listen and then answer the following question.听录音，然后回答以下问题。What are the two main types of bird flight described by the author?No two sorts o2012-03-16 编辑：richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 24 Beauty
Lesson 24 Beauty第24课 美First listen and then answer the following question.听录音，然后回答以下问题。What do glimpses of beauty, either in nature or art, often suggest to the human mind?A young man2012-03-16 编辑：richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 25 Non-auditory effects of
Lesson 25 Non-auditory effects of noise第25课 噪音的非听觉效应First listen and then answer the following question.听录音，然后回答以下问题。What conclusion does the author draw about noise and health2012-03-19 编辑：richard
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[新概念英语第四册美音版] 新概念英语美音版第四册:Lesson 26 The past life of the ea
Lesson 26 The past life of the earth第26课 地球上的昔日生命First listen and then answer the following question.听录音，然后回答以下问题。What is the main condition for the preservation of the remains2012-03-19 编辑：richard
