1 . Ryan Hreljac is a boy living in Canada. Without his help, hundreds of wells that now provide fresh water for people in Africa, Central America and India might never have been built. Ryan is what you might call a water ambassador. He traveled the world to tell people how they can help solve a big problem: the lack of safe drinking water in many developing countries.

Ryan's efforts didn't begin in a far-off place, but right at home in Kemptville, Ontario. When he was 6 years old, Ryan learned from his teacher that children in Africa often must walk miles each day to find water. Some even die from drinking dirty water, his teacher said. So Ryan decided to act. He did chores for his parents and neighbors. He spoke to schools, churches, and clubs about his goal. The word spread. After several months of hard work, Ryan had raised $2,000, enough to dig one well.

An organization called Canadian Physicians for Aid and Relief（CPAR）chose a site for the well in the village of Agweo, in Uganda. Two years later, CPAR arranged for Ryan to visit Uganda for the opening ceremony of the well. Ryan met a new friend named Jimmy. Then they formed a close friendship. He often traveled with Ryan to explain how water changed his life.

After the first well, "the ripple effect took over," Ryan says, "and one goal led to another.” With adult help, he founded Ryan's Well Foundation to educate people about the importance of water. Now the foundation has raised more than $1.5 million and built 255 wells that serve more than 427,000 people in 12 countries. Ryan has received many awards but he isn't bragging（炫耀）. “The most impressive people I've met are the other kids who want to help too,” he says. "I'm just a typical kid. I had a small dream, and I stayed with it. That's the key reason why I made it come true. Everybody can do something.”

1. What problem is Ryan working to solve?

A．Not enough money for education.	B．A shortage of safe drinking water.
C．African children's being extremely poor.	D．Polluted water causing diseases.

2. How did Ryan get money for his first well?

A．He did chores and sold his idea.	B．He created an educational foundation.
C．He traveled to villages across the world.	D．He started a website to ask for donations.

3. What would be the most important for Ryan to realize his dream?

A．Never giving up.

B．Making friends.

C．Knowing his limits.

D．Not bragging about awards.

4. What is the main idea of the text?

A．A special well was dug.	B．A boy has made a difference.
C．An organization helped to save water.	D．A well brought people together.

2 . Cities need to put efforts to deal with pollution and clear the air.
Chinese cities will need to put efforts to clear up the sky when a new department to improve regional air quality is set up by 2015，according to the latest plan released by the State Council.
Besides the existing pollution control program for CO₂，regional emission caps(区域排放上限) for other certain chemicals will be established in the three key air polluting areas—the Yangtze River Delta，Pearl River Delta and the Beijing­-Tianjin­- Hebei region. Coal­-consumption caps will also be tried out in some areas，according to the plan.
The plan is aimed at dealing with regional air pollution—such as acid rain and smog—which have become increasingly obvious in China in recent years and caused a severe threat to people’s health，Zhang Lijun，vice­minister of environmental protection，said in an interview on Monday.
The air quality in a city affects the areas nearby because pollutants can travel in the sky，said Chai Fahe，vice-­director of Chinese Research Academy of Environmental Sciences.
“So efforts to reduce air pollution in a single city，targeting a certain pollutant(污染物) will not be enough，” Chai said.
Zhang said the country’s major industrial districts—the Yangtze River Delta，Pearl River Delta and the Beijing­-Tianjin-­Hebei region—have recorded more than 100 misty days annually in recent years.
These three regions，home to at least 200 million people，occupy only 6.3 percent of the country’s area but consume 40 percent of the country’s coal and produce half of its steel，according to official figures.
Studies also show that the visibility(能见度) in eastern regions of China has dropped by 7 to 15 km compared to that in the early 1960s，as a result of air pollution.
Liaoning province，the Shandong Peninsula，Wuhan in Hubei province and its surrounding area，the Changsha­-Zhuzhou­-Xiangtan region in Hunan province，the Chengdu­-Chongqing region，and the western coast of the Taiwan Straits are also listed as areas to carry out such regional air pollution control programs，according to the plan.
The new plan also requires an improved air quality system，which will measure the pollution levels. “The current system，which only measures some major pollutants，cannot reflect the_truepicture.” said Chai.
1. It will not be enough to reduce air pollution in a single city because ________.

A．air pollution has been becoming more and more serious in recent years

B．air pollution like acid rain and smog is threatening people’s health

C．air pollutants in a city can travel in the sky and affect nearby areas

D．air pollutants stay in fixed places over the cities

2. Suppose the visibility in eastern regions of China was 130 km in the early 1960s，the visibility there nowadays is ________.

A．123 to 115 km	B．137 to 145 km
C．123 to 145 km	D．115 to 137 km

3. The main purpose of the passage is ________.

A．to inform readers of the damage caused by air pollution

B．to introduce the new plan to control air pollution

C．to provide official figures of air pollution levels

D．to point out the regions affected by air pollution

4. What does the underlined phrase “the true picture” in the last paragraph mean?

A．The major pollutants.

B．The key polluted areas.

C．The major polluted cities.

D．The pollution levels.