题目

300 多年前建立的牛顿力学至今在人类的生活、生产和科学实践中依然非常有用，随着科学的不断向前推进，人们认识到牛顿运动定律仅适用于、运动体系。 答案：【1】宏观【2】低速 听短文，完成下面表格，每空一词。短文念两遍。 The problem with the world      Pollution 1______ great harm to all the living things. The world we are living in is in 2______.      Many years ago, there were 3______ sorts of trees and flowers, but now there are only 866.     We are 4______ the earth, the air and the water and so on. The things we should do      We should plant trees and flowers, save the water and animals and so on. We hope our world will be more and more 5______.