题目内容
It could take 4-6 months before the first batch(批)of vaccines (疫苗)are available to fight A/H1N1 flu ________ as swine flu, WHO officials said.
A. known B. to know C. knowing D. having known
A
In summer, millions of people will head for the beach.And while 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? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland.“There is certainly a lot of energy in waves.”
Scientists are working on using that energy to make electricity.
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 shore, people can set up dams or other barricades to block the water and send it through a l
arge wheel called a turbine (涡轮) .The turbine can then power an electrical generator (发电机) .
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland.
The resource is huge.We will never run out of wav
e power, besides, wave energy does not create
the same pollution as other energy sources, such as oil and coal.
Oceans cover three quarters of the earth’s surface.That would make wave power seem perfect for creating energy around the world.There are some drawbacks, however.
Jamie Taylor said that wave power still cost too much money.He said that its effects on animals in the sea were still unknown.Plus, wave power would get in the way of fishing and boat traffic.
With more research, however, “many of these problems might be overcome,” Taylor said.“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world.Finding more energy sources 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 switch, an ocean wave could be providing the electricity!
【小题1】Which of the following is NOT true?
| A.Wave power doesn’t cost too much money. |
| B.Wave energy is so clean that it doesn’t create the same amount of pollution as other energy sources. |
| C.Wave power affects fishing and boat traffic. |
| D.Wave power may affect marine animals. |
| A.finding more new energy sources is not necessary because of wave energy |
| B.wave energy is a resource that will never run out and is used all over the world |
| C.wave power is not quite perfect for creating energy around the world |
| D.wave power doesn’t create any pollution |
| A.regrets | B.adventures | C.disadvantages | D.difficulties |
| A.How to Get Electricity by Waves | B.The advantages of Wave Energy |
| C.Can Waves Make Electricity? | D.The Disadvantages of Wave Energy |
Steven Jobs, the designer of Apple Computer, was not clever when he was in school. At that time, he was not a good student and he always made troubles with his schoolmates. When he went into college, he didn’t change a lot. Then he dropped out(退学). But he was full of new ideas.
After he left college, Steven Jobs worked as a video game designer. He worked there for only several months and then he went to India. He hoped that the trip would give him some new ideas and give him a change in his life.
Steven Jobs lived on a farm in California for a year after he returned from India.
In 1975, he began to make a new type of computer. He designed the Apple Computer with his friend in his garage. He chose the name “Apple” just because it could help him to remember a happy summer he once spent in an apple tree garden.
His Apple Computer was so successful that Steven Jobs soon became famous all over the world.
He often said, “I live in order to change the world, there aren’t any other reasons. The only way to have a great achievement is to love your own career. If you can’t find your favorite career, go on looking for it and never give up.”
This is Steven Jobs, though he is dead, his spirit and achievements still influence our lives.
【小题1】Steven Jobs was not a good student in school because he ________.
| A.never did his lessons | B.dropped out |
| C.always made troubles with his schoolmates | D.he was full of new ideas |
| A.Because he wanted to be a video game designer. |
| B.Because he wanted to get some new ideas. |
| C.Because he wanted to make a new type of computer. |
| D.Because he wanted to have a happy summer. |
| A.new ideas | B.Apple Computer | C.video games | D.saying |
| A.didn’t finish his studies in the college because he hated his schoolmates |
| B.liked traveling in India and California |
| C.liked trying new things and making his new ideas come true |
| D.thought he had many reasons to live in the world |
| A.The only way to have a great achievement is to love your career. |
| B.The name “Apple” helped Jobs to remember a happy summer in an apple tree garden. |
| C.If you can’t find the career you love, give it up and try another one. |
| D.People remember Jobs because of his achievements. |