新东方优美背诵短文50篇 Unit31:British Columbia31 British ColumbiaBritish Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas, and extends 800 miles(1,280km) north from the United States border. It includes Canada&rsquos entire west coast and

新东方优美背诵短文50篇 Unit21:The Origin of Sports21 The Origin of SportsWhen did sport begin? If sport is, in essence, play, the claim might be made that sport is much older than humankind, for , as we all have observed, the beasts play. Dogs and cats wrestle and play ball games. Fishes and birds dance. The

新东方优美背诵短文50篇 Unit46:Vision46.VisionHuman vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest, it is more important to see well that to develop an acute sense of smell. In the course of evolution members of the primate line have a