“虽然没有萤火虫的荧光，人也能将黑夜变成白昼；虽然没有猎豹矫健的步履，人也能日行千里；虽然没有大象强壮的臂力，人也能移山填海……”这说明 （）

根据短文，现在请同学们为Mr. Cao填完整他工作日的日程安排表
   Mr. Cao is a teacher in a middle school．He has a lot of things to do from Monday to Friday．On Monday and Tuesday morning he has three speaking classes．On Thursday he has two writing classes in the morning and one in the afternoon．He plays ball games after class on Monday and listens to music on Tuesday afternoon．He doesn’t have classes on Wednesday or Friday．He works on the computer on Wednesday morning．He can speak a little Japanese．So he takes Japanese classes that afternoon．On Friday morning．Mr. Cao meets old friends．In the afternoon，he has a rest at home

亚洲资源、环境问题日益严重的根本原因是（ ）