Unit 1

Betty:I went shopping in the city centre with my family last week.

Tony:Did you have a good time?

Betty:Yes,I did,but there was a lot of traffic on the way there.Then there were too many people and not enough space.It was impossible to move.And there was a lot of noise.

Tony:Well,Beijing is a big city.

Betty:Yes,it is.It has a population of about twenty million.

Tony:Twenty million!Does Beijing have the largest population in China?

Betty:No,it doesn't.Chongqing has the largest population in China.More than thirty–three million people live there.

Tony:Really? That's a lot of people!

Betty:Yes,and there's a lot more pollution in the air.