新东方优美背诵短文50篇 Unit31:British Columbia 31 British Columbia British Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas, and extends 80
新东方优美背诵短文50篇 Unit21:The Origin of Sports 21 The Origin of Sports When 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 h
新东方优美背诵短文50篇 Unit46:Vision 46.Vision Human 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
