For many years scientists have said that the earth is getting warmer. Now they have found something new-hot cities! In the southern US, they have found that cities become very hot in summer. For example, the city of Atlanta in Georgia has roof(屋顶) temperature of up to 50^oC while it is 27℃ in the streets! At night, the outside of buildings stays so hot that the heat of the city causes storms over the city!

China also has the same kind of problems. Every year more farmland is used for factories or offices. More housing is needed, too. As people become richer, they buy more cars. New roads are needed and new car parks are built in the city centers. This all makes cities hotter.

It isn’t easy to change the situation. City planners say that we should plant more trees in the middle of cities. Every new street should have trees on both sides, they say. Trees make the temperature lower, so we should have more trees in our parks and squares. We should also paint our roofs white. If we do this, they do not become so hot. Every roof in a hot and sunny country should have solar(太阳的) roof panels. The electricity from these can be used to run the air conditioners (空调)in the buildings.

People continue to cut down forests around the cities. This makes the problem worse. Cities are growing faster and faster. By the year 2025, four fifths(五分之四) of the population will be living in cities. If we go on like this, there will not be enough farmland to feed everyone in the world

1.The scientists have found       .

2.The way to make the city cooler is to       .

3.What will probably happen in the future according to the fourth paragraph(段落)?

4.What is the best title(题目)for the passage?

 
Peter is a sixth-grader at Woodland Primary School. He is only 12 years old but has been smoking for three years. John, 15, is a Junior 2 student at Woodland Secondary School. He began smoking four years ago. “Smoking is part of my life,” John said. Peter and John are not those boys’ real names. But their problem, smoking, is a very real problem. In many countries, smoking is becoming a bigger problem for young people. Most smokers start in their teens or earlier.
A study of 8,000 London students shows that smoking is a problem for many British kids. More than 21% of middle school students and 6 % of primary school pupils said they smoked. “If young people start smoking early, it will be very hard for them to give up later on,” said a professor.
Every year, about four million people die because of smoking. And if people keep smoking,  that number will go up to about ten million a year by 2030, the World Health Organization (WHO) says. So we have to learn and tell others about the dangers of smoking.
【小题1】The sentence “Smoking is part of my life” probably means “__________”

Peter is a sixth-grader at Woodland Primary School. He is only 12 years old but has been smoking for three years. John, 15, is a Junior 2 student at Woodland Secondary School. He began smoking four years ago. “Smoking is part of my life,” John said. Peter and John are not those boys’ real names. But their problem, smoking, is a very real problem. In many countries, smoking is becoming a bigger problem for young people. Most smokers start in their teens or earlier.

A study of 8,000 London students shows that smoking is a problem for many British kids. More than 21% of middle school students and 6 % of primary school pupils said they smoked. “If young people start smoking early, it will be very hard for them to give up later on,” said a professor.

Every year, about four million people die because of smoking. And if people keep smoking,  that number will go up to about ten million a year by 2030, the World Health Organization (WHO) says. So we have to learn and tell others about the dangers of smoking.

1.The sentence “Smoking is part of my life” probably means “__________”

A．I don’t smoke very often.

B．Smoking is very important to me.

C．I don’t smoke at all.

D．I’m going to give up smoking.

2.What will probably happen if a person starts smoking early?

A．He will surely die early.

B．He cannot stop smoking.

C．It will be difficult for him to give up smoking.

D．He will become lazy soon.

3.The study in the passage shows that __________.

A．smoking is a serious problem among British students

B．there are more and more smokers in England

C．some student smokers are having fun smoking

D．most of smokers are young students

4.The main idea of this passage is that__________.

A．smoking is becoming a bigger problem for young people

B．more and more people die because of smoking every year

C．WHO asks young people to give up smoking

D．we needn’t worry about the student smokers

5.As middle school students, what should we do from now on?

A．We should start smoking after middle school.

B．We should ask others to smoke outside.

C．We should laugh at smokers.

D．We should say no to smoking.