【正文】
Module 11 Population Unit 2 It was a quiet country village. What do you think of when you see this picture? at that moment laugh bright not lonely… Discuss 1 Why do people move to cities? 2 What do cities need for the people who live there? 3 What changes have there been to your town or city over the last 50 years? 4 What are the problems of cities? ? bloc