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 influential factor in any human society?
In man's early days. competit...
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 this text describe?
Contamination of water supplies is usually due to po...
Lesson 44 Patterns of culture文化的模式
First listen and then answer the following question.
听录音,然后回答以下问题。
What influences us from the moment of birth?
Custom has not commonly been regarded as ...
Lesson 43 Are there strangers in space?宇宙中有外星人吗?
First listen and then answer the following question.
听录音,然后回答以下问题。
What does the 'uniquely rational way' for us to communicate with other inte...
Lesson 2 Spare that spider不要伤害蜘蛛
First listen and then answer the following question.
听录音,然后回答以下问题。
How much of each year do spiders spend killing insects?
Why, you may wonder, should spid...
Lesson 1 Finding fossil man发现化石人
First listen and then answer the following question.
听录音,然后回答以下问题。
Why are legends handed down by storytellers useful?
We can read of things that happened ...