2 . It’s true that a larger _________（人口）requires more schools and houses.

3 . What’s the _________（人口）of Canada?

4 . 寿光是一个拥有一百多万人口的城市。(with)
__________________________________________________

5 . Beijing is a busy and modern city with a large p______________.

6 . China is the first largest p________ country in the world.

7 . —What’s the p________ of the city?
—It’s about six million.

8 . Electric cars are becoming popular nowadays. We expect there will be less ________ in the future.

A．population

B．production

C．pollution

9 . 看音标，写单词
1. ________
2. ________
3. ________
4. ________