A generator mechanical energy into electricity. A. translates D. conveys C. transports D. transforms 题目和参考答案——青夏教育精英家教网—

题目内容

A generator ______ mechanical energy into electricity.

A. translates D. conveys C. transports D. transforms

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相关题目

Wind is the movement of air from an area of high pressure to an area of low pressure. In fact, wind exists because the sun unequally heats the surface of the Earth. As hot air rises, cooler air moves in to fill the gap. As long as the sun shines, the wind will blow. And as long as the wind blows, people will manage it to power their lives.
Ancient sailors used sails to capture the wind and explore the world. Farmers once used windmills to grind their grains and pump water. Today, more and more people are using wind turbines to make electricity from the breeze. Over the past decade, wind turbine use has increased at more than 25 percent a year. Still, it only provides a small part of the world's energy.
Most wind energy comes from turbines that can be as tall as a 20-story building and have three 200-foot-long (60-meter-long) blades. These devices look like giant airplane propellers(螺桨)on a stick. The wind spins the blades, which turn a shaft connected to a generator.
The biggest wind turbines generate enough electricity to supply about 600 U.S. homes. Wind farms have tens and sometimes hundreds of these turbines lined up together in particularly windy spots, like along a ridge. Smaller turbines set up in a backyard can produce enough electricity for a single home or small business.
Wind is a clean source of renewable energy that produces no air or water pollution. And since the wind is free, operational costs are nearly zero once a turbine is erected. Mass production and technology advances are making turbines cheaper, and many governments decrease tax to encourage wind-energy development.
Some people think wind turbines are ugly and complain about the noise the machines make. The slowly rotating blades(螺旋风片) can also kill birds and bats, but not nearly as many as cars, power lines, and high-rise buildings do. The wind is also changeable: If it's not blowing, there's no electricity generated.
Nevertheless, the wind energy industry is increasing sharply. Globally, generation more than quadrupled(四倍) between 2000 and 2006. At the end of last year, global capacity was more than 70,000 megawatts. In the energy-hungry United States, a single megawatt is enough electricity to power about 250 homes. Germany has the most installed wind energy capacity, followed by Spain, the United States, India, and Denmark. Development is also fast growing in France and China.
Industry experts predict that if this pace of growth continues, by 2050 the answer to one third of the world's electricity needs will be found blowing in the wind
63. According to the passage, which of the following statements is true?
A. The rotating blades can kill as many birds as high-rise buildings do
B. Single families are not encouraged to build turbines.
C. The USA produces more wind power than any other country in the world.
D. The noise the turbines make may discourage people from building them.
64. The underlined word “generator” in the third paragraph probably means_______.
A. 电动机                       B. 发电机                          C. 机翼                               D. 飞机引擎
65. If the USA wants to build wind turbines in an area with 30,000 homes, how many
should they build at least?
A. 50.                                    B. 150.                                 C. 250.                                 D. 200.
66. All the following are the advantages of wind energy EXCEPT that_________.
A. it is environmentally friendly                                   B. it is free to build and operate
C. the government supports it                                              D. the energy is clean and renewable

Light for the City
Edison and his assistants came to New York to set up an electric power system. They hoped it would provide enough electricity to light up a part of the great city.
They bought several machines with them. These were called generators(发电机), which produced electricity power for lamps in Edison’s building.
Soon there were lights for the building. Edison lived in a room facing the street and he often worked over night. The light burned brightly and steadily and he often worked over night. People often came and stopped their horse-drawn carriage to look. Everyone knew that Thomas Edison was in town.
First, the inventor and his assistants produced several large generators. A great deal of power would be needed to light up even a small part of the city. Then the workers were busy digging deep trenches in the hard earth below the city streets, and Edison had fourteen miles of wire laid into the trenches. The wire connected each building to a generator.
Setting up an electric power system was not an easy job. It took a year and a half. In September, 1882, the job was finished.
A small group of men stood around Edison inside the power house. The big moment came at last. The inventor, taking a deep breath, pulled a switch. The electric lights flashed up.
“Very good! Very good!” a man nearby shouted to praise Edison for what he had done.
“Sir,” said Edison, “this is only the beginning!” And Edison was right. Soon Edison’s lamp were lighting up cities all over the world.
【小题1】The generators they brought with them could produce as much as electricity as ______ needed.

A．Edison’s building	B．a small part of the city
C．the whole city	D．the world

【小题2】Trenches were dug to ______.

A．set up generators

B．lay wires

C．built city streets

D．build a power house

【小题3】It took a year and a half to ______.

A．set up the electric system

B．produce several large generators

C．dig the deep trenches

D．lay fourteen miles of wire into the trench

【小题4】Edison took a deep breath before pulling a switch, which showed that he was ______.

Light for the City
Edison and his assistants came to New York to set up an electric power system. They hoped it would provide enough electricity to light up a part of the great city.
They bought several machines with them. These were called generators, which produced electricity power for lamps in Edison’s building.
Soon there were lights for the building. Edison lived in a room facing the street and he often worked over night. The light burned brightly and steadily and he often worked over night. People often came and stopped their horse-drawn carriage to look. Everyone knew that Thomas Edison was in town.
First, the inventor and his assistants produced several large generators. A great deal of power would be needed to light up even a small part of the city.
Then the workers were busy digging deep trenches(沟) in the hard earth below the city streets, and Edison had fourteen miles of wire laid into the trenches. The wire connected each building to a generator.
Setting up an electric power system was not an easy job. It took a year and a half. In September, 1882, the job was finished.
A small group of men stood around Edison inside the power house. The big moment came at last. The inventor, taking a deep breath, pulled a switch. The electric lights flashed up.
“Very good! Very good!” a man nearby shouted to praise Edison for what he had done.
“Sir,” said Edison, “this is only the beginning!” And Edison was right. Soon Edison’s lamp were lighting up cities all over the world.
【小题1】The generators they brought with them could produce as much as electricity as ______ needed.

A．Edison’s building

B．a small part of the city

C．the whole city

D．the world

【小题2】At that time carriages ______ by horse could be seen in the street.

【小题3】Trenches were dug to ______.

A．set up generators

B．lay wires

C．built city streets

D．build a power house

【小题4】It took a year and a half to ______.

A．set up the electric system	B．produce several large generators
C．dig the deep trenches	D．lay fourteen miles of wire into the trench

Light for the City

Edison and his assistants came to New York to set up an electric power system. They hoped it would provide enough electricity to light up a part of the great city.

They bought several machines with them. These were called generators(发电机), which produced electricity power for lamps in Edison’s building.

Soon there were lights for the building. Edison lived in a room facing the street and he often worked over night. The light burned brightly and steadily and he often worked over night. People often came and stopped their horse-drawn carriage to look. Everyone knew that Thomas Edison was in town.

First, the inventor and his assistants produced several large generators. A great deal of power would be needed to light up even a small part of the city. Then the workers were busy digging deep trenches in the hard earth below the city streets, and Edison had fourteen miles of wire laid into the trenches. The wire connected each building to a generator.

Setting up an electric power system was not an easy job. It took a year and a half. In September, 1882, the job was finished.

A small group of men stood around Edison inside the power house. The big moment came at last. The inventor, taking a deep breath, pulled a switch. The electric lights flashed up.

“Very good! Very good!” a man nearby shouted to praise Edison for what he had done.

“Sir,” said Edison, “this is only the beginning!” And Edison was right. Soon Edison’s lamp were lighting up cities all over the world.

1.The generators they brought with them could produce as much as electricity as ______ needed.

A．Edison’s building	B．a small part of the city
C．the whole city	D．the world

2.Trenches were dug to ______.

A．set up generators

B．lay wires

C．built city streets

D．build a power house

3.It took a year and a half to ______.

A．set up the electric system

B．produce several large generators

C．dig the deep trenches

D．lay fourteen miles of wire into the trench

4.Edison took a deep breath before pulling a switch, which showed that he was ______.

A．excited

B．frightened

C．uneasy

D．light-hearted

A 26-year-old Montreal man appears to have succeeded in his quest to barter a single， red paper clip(夹子) all the way up to a house. It took almost a year and 14 trades， but Kyle MacDonald has been offered a two-storey farmhouse in Kipling， Sask.， for a paid role in a movie.

MacDonald began his quest last summer when he decided he wanted to live in a house. He didn’t have a job， so instead of posting a resumé， he looked at a red paper clip on his desk and decided to trade it on an Internet website. The response was immediate —a fish pen was offered for exchange. MacDonald then bartered the fish pen for a handmade doorknob from a potter in Seattle.

In Massachusetts， MacDonald traded the doorknob for a camp stove. He traded the stove to a U.S. soldier in California for a generator. Then he exchanged the generator for an “instant party kit” — an empty keg(小桶) and an illuminated Budweiser beer sign. MacDonald then traded the keg and sign for a snowmobile. He bartered all the way up to an afternoon with rock star Alice Cooper， a KISS snow globe and finally a paid role in a Corbin Bernsen movie.

“Now， I’m sure the first question on your mind is， ‘Why would Corbin Bernsen trade a role in a film for a snow globe？ A KISS snow globe，’ MacDonald said on his website.”Well， Corbin happens to be arguably one of the biggest snow globe collectors on the planet.

Now， the town of Kipling， Sask.， Canada， with a population of 1,100， has offered MacDonald a farmhouse in exchange for the role in the movie. The town is going to hold a competition for the movie role.

MacDonald said： “There’re people all over the world that are saying that they have paper clips clipped to the top of their computer， or on their desk or on their shirt， and it proves that anything is possible and I think to a certain degree it’s true.”

MacDonald， who has attracted international media attention in his quest， said the journey has turned out to be more exciting than the goal. “This is not the end. This may be the end of this part of the story， but this story will go on.”

1.The best title for this passage is “　　　　”.

A.A lucky paper clip B. From poor to rich

C.A lucky young man D. From paper clip to house

2.The underlined word in line 1 means 　　　　.

A. to get something for free B. to sell something at a price

C. to sell goods on the Internet D. to exchange goods for other goods

3.Which shows the correct order of the trades？

A. Paper clip?snow globe?snowmobile?house

B. Paper clip?keg of beer?doorknob?snowmobile

C. Paper clip?camp stove?snowmobile?movie role

D. Paper clip?keg of beer?camp stove?snowmobile

4.Which statement about MacDonald’s trades is TRUE？

A. All of his trades were done in his country.

B.A film role was offered due to Bernsen’s hobby.

C. They took over a year and some of them were really unbelievable.

D. The house in Kipling has been offered to MacDonald to attract media.

5.What can we learn about MacDonald？

A. He wanted to gain fame through his quest.

B .His success largely depended on the Internet.

C. He never expected his aim could be achieved.

D. He intends to begin another quest on the Web.

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