Since the first Earth Day started on April 22, 1970, people around the world have been encouraged to protect the environment and natural resources．Gaylord Nelson started this holiday．On the first Earth Day， 20 million people took part in Earth Day events．

Earth Day activities can include learning something about technology like cars that are more environmentally friendly and special houses that save energy and water．An organization called the Earth Day Network encourages people to use clean energy which doesn’t pollute the environment．Most of our energy comes from fossil fuels (化石燃料) that are found underground． Coal， oil and natural gas are examples of fossil fuels．Fossil fuels come from plants and animals that lived millions of years ago． Burning fossil fuels to create energy pollutes the air and water． Many scientists think that burning fossil fuels also increases the temperature of the earth． To reduce the use of fossil fuels． scientists are experimenting with hydrogen-powered (氢化发动的) cars． These cars don’t pollute the air like gas-powered cars．

Some scientists guess that by 2025, fossil fuels will run out．When people can no longer use gasoline， they may use fuel cells instead． Fuel cells use hydrogen to create energy． People do not need to worry about hydrogen running out， because it is renewable and replaceable．

In Washington， D.C.， a few people drive cars that run on fuel cells． When these cars need more energy, drivers can go to a hydrogen pump．The first hydrogen pump for the public opened in November 2004， marking an important step toward a cleaner environment．

1.what can we learn from the passage?

A．Fossil fuels don’t pollute the air．

B．Hydrogen-powered cars make less pollution．

C．Many drivers are driving hydrogen-powered cars．

D．We can find many hydrogen pumps in the USA．

2.How long may people still be able to use fossil fuels?

A．Twenty years． B．Over thirty-eight years．

C．More than ten years． D．About seventeen years．

3.Which of the following is not mentioned?

A．Scientists are producing more hydrogen-powered cars．

B．Some people drive fuel-cell cars in Washington．

C．Fossil fuels come from plants and animals．

D．We can learn about environmentally friendly technology from Earth Day activities．

4.When do fossil fuels pollute the air?

A．When we use them to create gasoline．

B．When people get them from the underground．

C．After being burned to get energy．

D．After getting them from a hydrogen pump．

5.Because hydrogen is renewable， we don’t need to worry that ________．

A．it will be used up B．it can be used for creating energy

C．it will pollute the environment D．it will be cleaner

Learning about the environment is very important. There are many good books that will help you learn. To get started, ask your teacher or your friends for some advice. You can also look at some good websites with information about the environment and climate change. Climate change may be a big problem, but there are many little things we can do to make a difference.

Driving a car or using electricity is not wrong. We just have to be smart about it. Some people use less energy by sharing a car. For example, four people can ride together in one car instead of driving four cars to work. Whenever we use electricity, we put greenhouse gases into the air. By turning off the lights, the television, and the computer when they aren’t needed, you can help a lot.

Don’t buy products (产品) that use too much energy. Some products, like certain cars, are made specially to save energy. These cars can travel longer on less gasoline (汽油). They don’t pollute as much, either. Products like computers, TVs and VCRs with the ENERGY STAR label (标签) are made to save energy. Buying products with these labels will help protect the environment.

??? Buy recyclable (可循环再用的) products instead of non-recyclable ones. Recyclable products are usually made out of things that have already been used. It usually takes less energy to make recyclable products than to make new ones. So when you go shopping, look for the recycle mark on the package. The less energy we use, the better.

1.The passage is mainly about ________________.

A. some suggestions about cars

B. an advertisement

C. the changes to the climate

D. the ways to protect the environment

2.From the passage, we can learn that ________________.

A. turning off the electricity when it isn’t needed can do good to the environment

B. electricity won’t cause great trouble to our environment

C. cars using less energy will not put greenhouse gases into the air

D. recyclable products are marked with the ENERGY STAR label

Learning about the environment is very important. There are many good books that will help you learn. To get started, ask your teacher or a librarian for some suggestions. You can also look at some good websites with information about the environment and climate change. Climate change may be a big problem, but there are many little things we can do to make a difference.

Driving a car or using electricity is not wrong. We just have to be smart about it. Some people use less energy by carpooling. For example, four people can ride together in one car instead of driving four cars to work. Whenever we use electricity, we put greenhouse gases (气体) into the air. By turning off lights, the television, and the computer when they aren't needed, you can help a lot.

Don't buy products that use too much energy. Some products, like certain cars, are made specially to save energy. These cars can travel longer on a smaller amount of gas. They don't pollute as much, either. Products like computers, TVs, and VCRs with the ENERGY STAR label （标签） ® are made to save energy. Buying products with these labels will help protect the environment.

Buy recyclable products instead of non-recyclable ones. Recyclable products are usually made out of things that have already been used. It usually takes less energy to make recyclable products than to make new ones. So when you go shopping, look for the recycle mark on the package — three arrows that make a circle. The less energy we use, the better.

58. The passage is mainly written for     _.

A. car producers     B. school students   C. parents   D. housewives

59. The underlined word "carpooling" in Paragraph 2 most probably means_     .

A. sharing a car      B. pulling a car      C. selling a car       D. improving a car

60. From the passage, we can learn that      _.

A. turning off the electricity when it isn't needed can save a lot of energy

B. electricity will cause great trouble to our environment'

C. cars using less energy will not put greenhouse gases into the air

D. recyclable products are marked with the ENERGY STAR label ®

61. Which of the following can be the writer's opinion?

A. No pains, no gains.                  B. Rome was not built in one day.

C. Little things can make a big difference.  D. Nothing is difficult to the man who will try.