Builders have known for many years that white roofs reflect(反射) sunlight and lower the cost of air conditioning (空调设备). But now scientists say they have found a new advantage: slowing global warming.

    Hashem Akbari believes that whitening 100 of the world’s largest cities could make the influence of the expected emissions (排放物) smaller over the next ten years.

White buildings and surfaces reflect far more sunlight than dark ones. Reflected sunlight does not increase the greenhouse effect (温室效应), unlike the heat energy sent out by dark surfaces heated by the sun.

Dr Akbari, of the Lawrence Berkeley National Laboratory, California, also argues that If built-up areas were made white, less heat would stay within them, allowing people to use their air conditioners less, which use a lot of power.

Dr Akbari has found out that making 100 of the largest cities white would increase the sunlight reflected by Earth by 0.03%. He believes it would cancel out (抵消) the warming caused by 44 billion tons of carbon (碳) emissions.

“Roofs are going to have to be changed one by one and to make that effort at a very local level, we need to have an organization to make it happen,”says Dr Akbari.

He argues that while the action would not solve the problem of climate change. it would slow it.

“We can give the environment time to breathe,” he says. “I just don’t see a disadvantage of this idea. It gives everybody advantages and you don’t have to make hard efforts to make it happen. ”

Akbari and his partners say they will try to persuade the United Nations to organize big cities to change the materials of their roofs.

How do white roofs slow down global warming?

A. They reflect sunlight, which makes people use no air conditioner.

B. They reflect sunlight, which doesn’t increase the greenhouse effect.

C. They keep the heat energy within them.

D. They send out no carbon emissions.

We know from Dr Akbari that he        .

A. has changed some roofs into white ones  

B. doesn’t use air conditioners himself

C. has built an organization to make cities white 

D. believes his idea will help slow the climate change

What do Akbari and his partners want to do?

A. They hope the UN will put their idea into action.

B. They want to become members of the UN.

C They want to change the materials of their own roofs.

D. They want to teach people how to change roofs

The passags is written mainly to        .

A. persuade people to paint their roofs white

B. introduce environment friendly paint

C. show white roofs do good to the environment

D. discuss how to slow down global warming

Do you want to visit Disney World? However, will you worry about your pet if you go to Disney World? To meet the needs of these people, a pet hotel has been built near the Disney World Resort in Florida.
The new pet hotel is named Best Friends Pet Care Resort and it is mainly open to dogs and cats. It has an area of 4,645㎡. About 270 dogs and 30 cats can be kept there at the same time. Besides dogs and cats, it can also provide services for birds, pigs and rabbits. However, it can’t take care of snakes and turtles(乌龟) now.
Best Friend Pet Care Resort is a very expensive hotel. There are several types of dog rooms, such as rooms with air-conditioners（空调） and VIP rooms. There is even a “private dog park”. Owners can have a high-quality vacation with their dogs there. The cats are kept in the “Kitty City”. The “Kitty City” is very comfortable and clean. Workers there will clean it once a day.
Apart from having good equipment, Best Friends Pet Care Resort also have other plans to meet the psychological (心理上的) needs of pets. Workers play music to the pets, walk with them, play with them and even read stories to them before they go to bed.
“We aim to make sure that pets will have a fun vacation here, just like their owners at Disney World,” said the manager of the resort.
【小题1】How many kinds of animals can be kept in Best Friends Pet Care Resort?

Do you want to visit Disney World? However, will you worry about your pet if you go to Disney World? To meet the needs of these people, a pet hotel has been built near the Disney World Resort in Florida.

   The new pet hotel is named Best Friends Pet Care Resort and it is mainly open to dogs and cats. It has an area of 4,645㎡. About 270 dogs and 30 cats can be kept there at the same time. Besides dogs and cats, it can also provide services for birds, pigs and rabbits. However, it can’t take care of snakes and turtles(乌龟) now.

   Best Friend Pet Care Resort is a very expensive hotel. There are several types of dog rooms, such as rooms with air-conditioners（空调） and VIP rooms. There is even a “private dog park”. Owners can have a high-quality vacation with their dogs there. The cats are kept in the “Kitty City”. The “Kitty City” is very comfortable and clean. Workers there will clean it once a day.

   Apart from having good equipment, Best Friends Pet Care Resort also have other plans to meet the psychological (心理上的) needs of pets. Workers play music to the pets, walk with them, play with them and even read stories to them before they go to bed.

   “We aim to make sure that pets will have a fun vacation here, just like their owners at Disney World,” said the manager of the resort.

1.How many kinds of animals can be kept in Best Friends Pet Care Resort?

A. Three.   B. Five.   C. Six.   D. Seven.

2.About Best Friends Pet Care Resort, which of the following is NOT true?

A. It covers about 4,645 ㎡.    

B. It can keep more than 300 pets.

C. Owners don’t need to pay much for keeping pets there.

D. There is a “private dog park” in the resort as well.

3.How often do the workers clean the “Kitty City”?

A. Once a day.   B. Twice a day.  C. Once a week.  D. Twice a week.

4.Workers from the pet care resort read stories to pets in order to          .

A. provide pets with good equipment  

B. meet the psychological needs of pets

C. teach pets to learn more knowledge 

D. make pets’ owners satisfied with their service

5.What’s the best title for the passage?

A. Relationship between Owners and Pets 

B. Popular Pets All Over the World

C. How to Take Care of your Pets        

D. Pet Care Resort in Florida

Do you want to visit Disney World? However, will you worry about your pet if you go to Disney World? To meet the needs of these people, a pet hotel has been built near the Disney World Resort in Florida.

The new pet hotel is named Best Friends Pet Care Resort and it is mainly open to dogs and cats. It has an area of 4,645㎡. About 270 dogs and 30 cats can be kept there at the same time. Besides dogs and cats, it can also provide services for birds, pigs and rabbits. However, it can’t take care of snakes and turtles(乌龟) now.

Best Friend Pet Care Resort is a very expensive hotel. There are several types of dog rooms, such as rooms with air-conditioners（空调） and VIP rooms. There is even a “private dog park”. Owners can have a high-quality vacation with their dogs there. The cats are kept in the “Kitty City”. The “Kitty City” is very comfortable and clean. Workers there will clean it once a day.

Apart from having good equipment, Best Friends Pet Care Resort also have other plans to meet the psychological (心理上的) needs of pets. Workers play music to the pets, walk with them, play with them and even read stories to them before they go to bed.

“We aim to make sure that pets will have a fun vacation here, just like their owners at Disney World,” said the manager of the resort.

1.How many kinds of animals can be kept in Best Friends Pet Care Resort?

A．Three.            B．Five.             C．Six.              D．Seven.

2.About Best Friends Pet Care Resort, which of the following is NOT true?

A．It covers about 4,645 ㎡.

B．It can keep more than 300 pets.

C．Owners don’t need to pay much for keeping pets there.

D．There is a “private dog park” in the resort as well.

3.How often do the workers clean the “Kitty City”?

A．Once a day.        B．Twice a day.        C．Once a week.      D．Twice a week.

4.Workers from the pet care resort read stories to pets in order to          .

A．provide pets with good equipment

B．meet the psychological needs of pets

C．teach pets to learn more knowledge

D．make pets’ owners satisfied with their service

5.What’s the best title for the passage?

A．Relationship between Owners and Pets

B．Popular Pets All Over the World

C．How to Take Care of your Pets

D．Pet Care Resort in Florida