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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 (氫化發動的) 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．
小題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．
小題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．

小題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．

小題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．

小題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

小題1:B
小題2:C
小題3:A
小題4:C
小題5:A

試題分析：這篇短文主要介紹了自第一個地球日以來世界各地的人們已經被鼓勵保護環境和自然資源。在第一個地球日,2000萬人參與活動。為了減少污染，在華盛頓有人開始開燃料電池的汽車。
小題1:細節理解題。根據短文第二段scientists are experimenting with hydrogen-powered (氫化發動的) cars． These cars don’t pollute the air like gas-powered cars描述，氫化發動的汽車不像油發動的汽車一樣污染空氣，故選B。
小題2:推理判斷題。根據第三段科學家的推測可知，到2025年化石燃料將耗盡，人們將利用氫制造能量的燃料電池，故大約還能使用化石燃料十年。故選C。
小題3:細節理解題。根據短文描述，可知A項沒有在文章中提及，
小題4:細節理解題。根據第二段Burning fossil fuels to create energy pollutes the air and water描述燃燒化石燃料創造能量時會污染空氣和水。故選C
小題5:細節理解題。根據第三段People do not need to worry about hydrogen running out， because it is renewable and replaceable描述人們不必擔心氫耗盡，因為它是可再生的和可替換的。

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