People and the sources of air pollution are found in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different things. A major source of air pollution is the gas fumes from cars. Statistics show that 93 percent of all auto trips are within cities. Another major source of dirty air is the burning of coal and oil for energy. This energy is needed to make electricity. Of course, much more electricity is used in the city than in the country.

On the average, we throw away more trash and garbage than the year before. The burning of garbage contributes to air pollution. Many major industries are also responsible for the dirty air in the around cities. The fumes from iron, steel, chemical, and petroleum production add particles to the air.

The effects of air pollution range from mild headaches to death. The levels of pollution found in heavy for traffic may cause headaches for loss of clear vision. Wherever coal and oil are used for fuel, fumes may kill trees and plants and cause metal to corrode. In some of the larger cities, these fumes endanger the live of human beings by contributing to lung diseases and causing early death.

1.The key point of the passage is that _________.

A.the cause of air pollution is people

B.the causes and the effects of air pollution are both found in cities

C.the effects of air pollution range from headaches to death

D.air pollution is caused by dirty air

2.What is the purpose of this passage?

A.to persuade people to stop polluting the air

B.to tell the causes of air pollution

C.to tell why cities are bad places to live

D.to describe why cities are bad places to live

3.Why is air pollution more grave in the city than in the country?

A.Because there are larger populations in cities.

B.Because the air in the city is dirty.

C.Because there are more cars in the city.

D.Because there are much more gas fumes from cars and burning of coal and oil for energy in the city than in the country.

4.The fumes from coal and oil may cause metal ______.

A.to corrode                            B.to twist

C.to turn black                           D.to become rusty

5.In larger cities, the fumes from coal and oil may contribute to ___________.

A.heart disease                          B.loss of clear vision

C.lung diseases                           D.serious headache

 

You can be proud of yourselves, even if you can only make one or two of these green changes. The goal here is to limit carbon dioxide and other greenhouse gases, which are closely associated to the big problem of global-warming.

Strategy 1:  Bring your own cup to Starbucks

You'll get a 10-cent discount, and it's one less paper cup to end up in a dustbin.

The store won't create more waste when they throw away a cup.

Strategy 2: Turn off your computer

When in standby mode, your PC is still using energy.

Turning off a monitor for 40 hours a week may only save $ 5 a month, but it reduces CO2 by 750 pounds.

Strategy 3:  Reuse plastic bags

Instead of throwing away 100 billion plastic bags a year, try and get a second, third, or tenth use out of them. Better yet, next time you shop, try a reusable bag.

You're reducing pollution. The amount of oil it would take to make just 14 plastic bags would run your car for one mile.

Strategy 4: Use recycled paper in the bathroom

Most of the toilet paper we use is made from  trees found in forests previously untouched by humans.

If every household replaced one roll of toilet paper with a recycled one,424,000trees would still be standing. Look for eco paper towels too.

 Strategy 5: Buy energy-efficient appliances(电器)

Replace the old fridge with an Energy Star appliance and you'll use 15 percent less energy. It might be a little expensive to buy, but  you'll save money on your electricity bills and help the environment.

If we all used one Energy Star appliance at home, it would be like planting 1.7 million acres of new trees.

Strategy 6: Plant a tree

Adding green to your garden is beautiful and earth-pleasing.

Just one tree will help make cleaner air and save the environment from 5, 000 pounds of hot carbon dioxide each year.

1.What is the best title for the passage?

A. Strategies to Save Money           

B. Ways to be Earth-Friendly

C. Strategies to End Global-Warming        

D. Ways to Limit Carbon Dioxide

2.According to the writer, what will happen if our PC is switched off when not in use?

A. It will help to save a large amount of money.

B. It will help to reduce a great deal of CO2.

C. It will save the amount of oil that runs your car for a mile.

D. It will be like planting 1.7 million acres of new trees.

3.Which strategies suggest recycling or reuse of things?

A. Strategies 1 & 3.                     B. Strategies 2 & 5.

C. Strategies 3 & 6.                     D. Strategies 4 & 5.

4.What benefits do these strategies have in common?

A. They all help reduce the use of energy like electricity.

B. They all cut down the amount of the use of paper.

C. They all result in producing less greenhouse gases.

D. They all aid to preserve our trees and forest.

 

 

An American man from Las Vegas opened a dog and cat hotel recently. Pats can rest on soft rugs(小地毯), watch television and get to know some new friends while their masters have fun in the city

The American Dog and Cat Hotel opened officially on a Wednesday in March. There is everything a pet could want --- and more.

“We hear time and time again. ‘This is so nice, I’d like to stay here.’ ” the hotel manager said in an interview. He believed that people would want for their pets what they wanted for themselves.

Kennels(狗舍) have been around for a long time, but nowadays masters want to put their loved pets in some better places, he added.

He said the cats and dogs like to watch images(图像) on TV although they may not understand them. Anyway, they don’t have to know Britney Spears or Emimem to enjoy the pop music. Also, “The dogs don’t know it is a rug, but they know it is soft,” he said.

Pet masters can book a dog suite(套房) for $79 a night. Baths and other services are also offered.

The pet hotel manager believes that all the animal lovers in the world will love this great idea.

1. By “--- and more” in the last sentence of the 2nd paragraph the writer means that ______.

A. there’re also things for the pet masters

B. some of the things are unnecessary

C. there’re things a pet cannot fully enjoy

D. all the things are plenty in amount

2. In the pet masters’ opinion, the kennels are _____.

A. not good enough                 B. too old to live in

C. just an equal choice               D. no longer in existence

3. The 5th paragraph suggests that ______.

A. some pets know some pop stars

B. “rug” is a difficult word for a pet to learn

C. pets enjoy things the same way humans do

D. pets enjoy things at a sensational level

 

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