The ocean can be a great place to swim and play, it may also be useful in another way. Some scientists think that waves could help make electricity.
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave?” asked Jamie Taylor of the Wave Energy Group in Scotland. “There is certainly a lot of energy in waves.”
Scientists are working on using that energy to make electricity. The United States and a few other countries have started doing research on wave energy, and it is already being used in Scotland.
Most waves are created when winds blow across the ocean. “The winds start out by making little ripples (波纹) in the water, but if they keep on blowing, those ripples get bigger and bigger and turn into waves,” Taylor said. “Waves are one of nature’s ways of picking up energy and then sending it off on a journey.”
When waves come towards the coast, people can set up dams(大坝) to block the water and send it through a large wheel called a turbine(涡轮). The turbine can then power an electrical generator(发电机).
We will never run out of wave power. Besides, wave energy does not create the same pollution as oil and coal do.
Oceans cover three quarters of the earth’s surface. That would make wave power seem perfect for creating energy around the world. But there are some disadvantages that need us to pay more attention to.
Jamie Taylor said that wave power still cost too much money. He said that its influence on animals in the sea is still unknown. Besides, wave power would get in the way of fishing and boat traffic.
With more research, “Many of these problems might be solved,” Taylor said. “Finding more energy sources(资源) is very important, for traditional sources of energy like oil and gas may run out some day.”
In the future, when you turn on a light button, an ocean wave could be providing the electricity!

【小题1】We can learn from the passage that__________________.

A．almost every country is making use of the wave power at present

B．it is necessary for us to develop wave power instead of oil and coal

C．wave power will be sure to make some bad influence on sea animals

D．scientists are making efforts to find new ways of fishing and boat traffic

【小题2】What does the fourth paragraph tell us?

A．Why scientists are doing the research on wave power.

B．What experience that scientists have achieved so far.

C．How the wave energy forms and grows bigger.

D．Which countries are trying out wave power.

【小题3】What’s the writer’s attitude towards wave power?

A．The writer believes that wave power will be used widely by man.

B．The writer doubts if wave energy can be changed into electricity.

C．The writer is sure the experiments will come to the end some day.

D．The writer thinks that wave power isn’t worth researching at all.

【小题4】What can be the best title for the passage?

A．Sea Animals and Wave Power.

B．How Do We Get Wave Energy?

C．The Advantages of Wave Power.

D．Can Waves Make Electricity?

The ocean can be a great place to swim and play, it may also be useful in another way. Some scientists think that waves could help make electricity.
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave?” asked Jamie Taylor of the Wave Energy Group in Scotland. “There is certainly a lot of energy in waves.”
Scientists are working on using that energy to make electricity. The United States and a few other countries have started doing research on wave energy, and it is already being used in Scotland.
Most waves are created when winds blow across the ocean. “The winds start out by making little ripples (波纹) in the water, but if they keep on blowing, those ripples get bigger and bigger and turn into waves,” Taylor said. “Waves are one of nature’s ways of picking up energy and then sending it off on a journey.”
When waves come towards the coast, people can set up dams(大坝) to block the water and send it through a large wheel called a turbine(涡轮). The turbine can then power an electrical generator(发电机).
We will never run out of wave power. Besides, wave energy does not create the same pollution as oil and coal do.
Oceans cover three quarters of the earth’s surface. That would make wave power seem perfect for creating energy around the world. But there are some disadvantages that need us to pay more attention to.
Jamie Taylor said that wave power still cost too much money. He said that its influence on animals in the sea is still unknown. Besides, wave power would get in the way of fishing and boat traffic.
With more research, “Many of these problems might be solved,” Taylor said. “Finding more energy sources(资源) is very important, for traditional sources of energy like oil and gas may run out some day.”
In the future, when you turn on a light button, an ocean wave could be providing the electricity!

【小题1】We can learn from the passage that__________________.

A．almost every country is making use of the wave power at present

B．it is necessary for us to develop wave power instead of oil and coal

C．wave power will be sure to make some bad influence on sea animals

D．scientists are making efforts to find new ways of fishing and boat traffic

【小题2】What does the fourth paragraph tell us?

A．Why scientists are doing the research on wave power.

B．What experience that scientists have achieved so far.

C．How the wave energy forms and grows bigger.

D．Which countries are trying out wave power.

【小题3】What’s the writer’s attitude towards wave power?

A．The writer believes that wave power will be used widely by man.

B．The writer doubts if wave energy can be changed into electricity.

C．The writer is sure the experiments will come to the end some day.

D．The writer thinks that wave power isn’t worth researching at all.

【小题4】What can be the best title for the passage?

A．Sea Animals and Wave Power.

B．How Do We Get Wave Energy?

C．The Advantages of Wave Power.

D．Can Waves Make Electricity?

(B) What are you going to do if you are in a burning house?
Escaping(逃离) a fire is a serious matter. Knowing what to do during a fire can save yourself. It is important to know the ways you can use and to show them to everyone in the family, such as stairways (楼梯) and fire escapes, but not lifts（电梯）.
From the lower floors of the building, escaping through windows is possible, learn the best way of leaving through windows with the least chance of serious injury (伤害).
The second floor windows are usually not very high from the ground. An average (普通的) person, hanging by the finger-tips will have a drop of about six feet to the ground. It is about the height of an average man. Of course, it is safer to jump a short way than to stay in a burning building.
Windows are also useful when you are waiting for help. Be sure to keep the door closed, or smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked (渗入) into the room.
On a second or third floor, the best windows for escaping are those which open onto a roof . From the roof a person can drop to the ground more safely, dropping onto stones might end in injury.
【小题1】From the beginning, we know that it is important to       .

A．know the way to escape a fire	B．put out a fire in a burning house
C．jump out of a burning house	D．keep the door closed

【小题2】It is possible to escape through the windows         .

A．if there are some stones on the ground

B．if there is some grass on the ground

C．if you live on a higher floor

D．if you have a short enough rope

【小题3】Which of the following is right according to the information in the passage?
You can escape through lifts.
You can choose fire escapes.
You can’t escape through stairways.
Keep your head high at the window to be sure you get fresh air.
【小题4】Keep the door closed so that         if the building is on fire.

A．smoke and fire can’t be drawn into the room

B．you can call for help

C．you can get fresh air

D．you can be sent first

【小题5】The best title for the passage is          .

A．Escaping through the windows

B．Saving yourself from a burning house

C．Knowing on fire

D．Waiting for help