新概念英语第四册第45课:Of men and galaxies
Lesson 45 Of men and galaxies人和星系First listen and then answer the following question.听录音，然后回答以下问题。What is the most
新概念英语第四册第42课:Recording an earthquake
Lesson 42 Recording an earthquake记录地震First listen and then answer the following question.听录音，然后回答以下问题。What does a p
新概念英语第四册第41课:Training elephants
Lesson 41 Training elephants训练大象First listen and then answer the following question.听录音，然后回答以下问题。At what point does
新概念英语第四册第38课:Water and the traveler
Lesson 38 Water and the traveller水和旅行者First listen and then answer the following question.听录音，然后回答以下问题。What does
新概念英语第四册第40课:Waves
Lesson 40 Waves海浪First listen and then answer the following question.听录音，然后回答以下问题。What false impression does an ocean w
新概念英语第四册第39课:What every writer wants
Lesson 39 What every writer wants作家之所需First Listen and then answer the following question.听录音，然后回答以下问题。How do pro
新概念英语第四册第36课:The cost of government
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
新概念英语第四册第33课:Education
Lesson 33 Education教育First listen and then answer the following question.听录音，然后回答以下问题。Why is education democratic in bo
新概念英语第四册第37课:The process of ageing
Lesson 37 The process of ageing衰老过程First listen and then answer the following question.听录音，然后回答以下问题。What is one of