题目内容：

People mountain people sea? Yes, this means too many people at a place. This is a photo taken in Shenzhen.

Shenzhen’s fast development has made it become China’s most crowded city! There are about 15 million people living on its 1,991 square kilometres. On average (平均) 7,500 people live on each square kilometre. It is 1,080 more than that in Hong Kong, and nearly 800 more than that in Guangzhou.

Besides, Shenzhen owns 2 million local vehicles (车辆), and about 300,000 vehicles from other places also run on the local roads every day. The total length of the city’s road is 6,041 kilometres. It means each person only owns 0.58 metres of road!

As a result, the city is facing serious environmental and resource (资源) problems. One of the problems is water shortage. The amount of fresh water for each person of the city is only 25% of the country’s average. What’s more, most of the water drunk by Shenzhen people comes from other areas.

1.According to the passage, which of the following makes Shenzhen so crowded?

A. Shenzhen doesn’t have enough water.

B. There are too many people.

C. Shenzhen is developing very fast.

D. Shenzhen is too small.

2.There are about 　　　 people living in Shenzhen.

A. 1,991      B. 15,000,000

C. 150,000      D. 300,000

3. In Hong Kong, there are 　　　 people on every square kilometre.

A. 7,500     B. 1,080

C. 800    D. 6,420

4.Which problem in Shenzhen is not mentioned in the passage?

A. Traffic accidents.

B. Water shortage.

C. Environmental problems.

D. Road problems.

5.Which is the best title for this passage?

A. Largest Population in China

B. Biggest Problem in Shenzhen

C. Busiest Roads in Shenzhen

D. Most Crowded City in China