In today’s world, the environment has been a serious problem. What should we do to protect the environment and the earth? Here is a list and you can do as these.

l　　　　 Plant more flowers and trees.

l　　　　 Use both sides of paper.

l　　　　 Whenever you visit a park, you should keep rubbish in a bag until you put it in a dustbin.

l　　　　 Turn off lights and TV sets when you leave the room.

l　　　　 Turn off the tap when you brush your teeth. You can use a glass cup instead of a paper cup because this saves paper.

l　　　　 Stop pouring dirty water into the rivers or lakes nearby.

(　 ) 51. The writer tells us _________.

　　　　 A. to pour dirty water into the rivers　　　　　

B. to throw rubbish into the dustbin

　　　　 C. to turn on the TV sets when you leave the room

　　　　 D. to use a paper cup when you brush your teeth

(　 ) 52. We can ______to save paper.

　　　　 A. use a paper cup　　　　　　　　　　　　 B. turn off the tap

　　　　 C. plant more trees　　　　　　 　　　　　　 D. use both sides of paper

(　 ) 53. Which is the best title for the passage?

　　　　 A. Save the Electricity　　　　　　　　　　　 B. Save Paper

　　　　 C. Protect the Earth　　　　　　　　　　　　 D. Save Water

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       .

A．cities become very hot in summer

B．Atlanta is the hottest city in America

C．there are not as many storms as before

D．it is not as hot on the roof as in the street

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

A．plant more trees

B．try to use air conditioners more

C．build more parks and squares

D．paint the roofs of all the white buildings

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

A．Cities won’t grow very fast

B．We will not have enough food

C．Most people will move to the countryside

D．People will plant more trees outside the cities

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

A．More Farmland Is Needed

B．Trees Make Cities Cooler

C．Cities Are Getting Hotter

D．Scientists Are Worried About Storms

 

In northern China during spring, big sandstorm often make trouble for people. Sandstorms usually happen in spring. They have happened in more than 10 provinces in northern China this year. People in southern China don't have to worry about this kind of bad weather. Most of the sand comes from the north of China. In northern China, lots of places have few trees and don't get much rain. When there aren't many trees, the ground can't keep enough water. Over the years, the ground dries up and turns to sand. When spring comes and the ice melts, the ground becomes loose. Strong winds take the loose sand into the sky. Besides, in northeast China, there lies some vast deserts.
Sandstorms are bad for people's health. If people breathe in too much sand, they will cough or have serious illnesses. Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never come back home. The winds also tear the farmers' houses down.
What can you do to stop sandstorms? Here's a piece of advice. Ask your parents to help you plant some trees this spring. If you see people cutting down too many trees, tell them about the dangers of sandstorms, and ask your government to stop them.
【小题1】When do sandstorms usually happen?

A．In summer.

B．In spring.

C．In winter.

D．In autumn

【小题2】What does the underlined word "loose" mean in China?
肥沃的           B.贫瘠的        C.疏松的        D.大量的
【小题3】The second paragraph tells us ______________.

A．why sandstorms happen in northern China

B．the dangers of sandstorms

C．sandstorms aren't terrible at all

D．how sandstorms happen

【小题4】Which of the following is NOT a way to stop sandstorms?

A．Plant more trees in spring.

B．Stop people to cut down too many trees

C．Don't stay outside when sandstorms happen.

D．Tell people about the dangers of sandstorms.

【小题5】Which is the best title for this passage?___________

A．Sandstorms

B．How we can stop sandstorms

C．Why sandstorms only happen in northern China.

D．Sandstorms can influence most of China.

In northern China during spring, big sandstorm often make trouble for people. Sandstorms usually happen in spring. They have happened in more than 10 provinces in northern China this year. People in southern China don’t have to worry about this kind of bad weather. Most of the sand comes from the north of China. In northern China, lots of places have few trees and don’t get much rain. When there aren’t many trees, the ground can’t keep enough water. Over the years, the ground dries up and turns to sand. When spring comes and the ice melts, the ground becomes loose. Strong winds take the loose sand into the sky. Besides, in northeast China, there lies some vast deserts.
Sandstorms are bad for people’s health. If people breathe in too much sand, they will cough or have serious illnesses. Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never come back home. The winds also tear the farmers’ houses down.
What can you do to stop sandstorms? Here’s a piece of advice. Ask your parents to help you plant some trees this spring. If you see people cutting down too many trees, tell them about the dangers of sandstorms, and ask your government to stop them.
【小题1】When do sandstorms usually happen?

A．In summer.

B．In spring.

C．In winter.

D．In autumn

【小题2】What does the underlined word "loose" mean in China?
肥沃的           B.贫瘠的        C.疏松的        D.大量的
【小题3】The second paragraph tells us ______________.

A．why sandstorms happen in northern China

B．the dangers of sandstorms

C．sandstorms aren’t terrible at all

D．how sandstorms happen

【小题4】Which of the following is NOT a way to stop sandstorms?

A．Plant more trees in spring.

B．Stop people to cut down too many trees

C．Don’t stay outside when sandstorms happen.

D．Tell people about the dangers of sandstorms.

【小题5】Which is the best title for this passage?___________

A．Sandstorms

B．How we can stop sandstorms

C．Why sandstorms only happen in northern China.

D．Sandstorms can influence most of China.

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
【小题1】The scientists have found       .

A．cities become very hot in summer

B．Atlanta is the hottest city in America

C．there are not as many storms as before

D．it is not as hot on the roof as in the street

【小题2】The way to make the city cooler is to       .

A．plant more trees

B．try to use air conditioners more

C．build more parks and squares

D．paint the roofs of all the white buildings

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

A．Cities won’t grow very fast

B．We will not have enough food

C．Most people will move to the countryside

D．People will plant more trees outside the cities

【小题4】What is the best title(题目)for the passage?

A．More Farmland Is Needed

B．Trees Make Cities Cooler

C．Cities Are Getting Hotter

D．Scientists Are Worried About Storms