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

Because earthquakes happen without warning, it’s important to take steps now to prepare.Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace, and car.

1.Water.

A person need at least 1/2 gallon of water daily just for drinking.Store at least 1 gallon of water per person per day and be prepared for a 72-hour period.It is suggested that you buy bottled water.Keep bottled water in its original container and do not open it until you need to use it.Also, do check the “use by” date.

2.Food.

It’s always a practical idea to keep a supply of nonperishable (不易腐烂的)food on hand.Have an enough supply of canned food, powdered milk, dried fruits, nonsalted nuts and canned juices for at least 72 hours.

3.Flashlights (手电筒) and spare batteries.

Keep a flashlight beside your bed, at your place of work, and in your car.Do not use matches or candles after an earthquake until you are sure that no gas leaks.

Prepare a battery-powered radio and spare batteries.Most telephones will be out of order, so radios will be your best source of information.

4.Clothes.

If you live in a cold place, you must think about warmth.You might not have heat after an earthquake.Think about your clothing and bedding supplies.

1.Why should people prepare themselves for an earthquake?

A.Because earthquakes can be known before they happen.

B.Because earthquakes take place without warning.

C.Because earthquakes usually take place in the neighborhood.

D.Because it’s people’s daily work to prepare the earthquakes.

2.About the prepared water, which description is RIGHT?

A.A person should prepare 0.5 gallon of water for one day.

B.You’d better use your own containers to keep water.

C.You’d better open the bottled water when you buy it.

D.You shouldn’t open the bottled water until you need it.

3.You should prepare all of the following except ________.

A.powdered milk B.fresh vegetables

C.dried fruits D.canned juices

4.According to the article we know that________.

A.we need to prepare some supplies only at home.

B.a telephone is the most important prepared thing.

C.flashlights but not matches are first used after earthquakes.

D.clothes are used to protect your head.

5.If you live in a cold place, you should prepare________.

A.some warm clothes and bedding supplies

B.some hot water

C.some batteries

D.some flashlights

If you have a brother or sister, you already know you are different from each other.You live together in the same house and have the same parents.1.________ Why is this? One possible reason is the way your parents treat you.

First-born children receive all the attention from their parents.Most families have twice as many photos of a first-born as any other child.Parents tend to give them more responsibility.2.________ As a result, first-borns are often responsible, hard-working and serious.They often want to do well at school and work.3.______ For example, George W.Bush, George Washington, and Lyndon Baines Johnson are all first-borns.

When a second child arrives, parents are more relaxed.The second child is allowed to be more independent.But he also has to compete with the first-born for the parents’ attention and love.These children often choose different sports and hobbies to show independence.4.________ They are often adventurous, fun-loving, and outgoing, but can be jealous and get angry easily.

The youngest child tends to be the happiest.He has fewer responsibilities and more freedom.These children do not feel pressure to do well at school and work, but have to be creative to get their family’s attention.5.________ So, many famous talk-show hosts and comedians were born last.

A.There are more first-born American Presidents than second or last-born children.

B.They are often friendly,humorous and calm.

C.But you have different personalities.

D.Their parents may probably love them more.

E.And they develop different personalities.

F.They depend on the first-borns to take care of younger brothers and sisters.

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