A. Do you know what the world's population today is? B. I'm reading a book about the world's population. C. What's the population? D. It's too terrible. E. It was no more than 2 billion. F. I think we must do something to control the population. G.I don't believe it. |
A: What are you doing?
B:
A: Great! Can you tell me something about the book?
B: Certainly! It says 1,000 years ago, the world's population was very small.
A: Really?
B: Yes, but during the last three or four hundred years, the world's population has grown very quickly. Today, it is growing faster than ever before.
A: Sorry, I don't know.
B: It's more than 6 billion.
A: It's so large.
B: Yes. If we don't control the population, there will not be enough space even to stand in on the earth in 600 years.
A:
