题目内容
A big fire ________ at the store last night, ________ nothing in it.
- A.took place, left
- B.happened, leave
- C.was broken out, to leave
- D.broke out, leaving
导解：break out为不及物动词，不能用于被动语态，leaving是分词表结果．
Having lost all their _____ in a big fire, the Blacks had to depend on their friends and relatives for a living.
| A．galleries | B．reputations | C．signatures | D．possessions |
Cyril was a small town. The houses there were all made of wood; almost everything in the houses such as cupboards, tables and chairs were made of wood, too. And all the houses faced south. The town was never peaceful. Fire broke out once a week on summer afternoons. Residents were puzzled who the real firebug(纵火犯) was.
One day a big fire broke out. It was said that a Negro had jumped out of the house on fire, so the police arrested(逮捕) all the Negroes in the street. However, fire never stopped to breaking out when the Negroes were in prison.
Mauson, a physics teacher didn’t believe that the Negroes were the firebugs, for he really knew about those Negroes, He made up his mind to find out who the real firebug was.
One day he was invited to drink in a pub and happened to notice that many bottles and plastic plates were baked by the hot sunrays. Suddenly he realized what the actual fact was. He jumped with joy, saying, “I’ve got the answer!”
Mauson dashed out of the pub to his friend’s house nearby, which also faced south. He made an experiment there to confirm his idea.
The next Saturday afternoon, Mauson asked some policemen and newsmen to come to the house. They were told that the real firebug would be shown there. At that time the sun was shining full into the house and it became hotter and hotter inside the room.
Someone wanted to draw the curtains together, while another was going to use a bottle to drink water, but neither got permission from Mauson, who wanted to let the firebug in.
“Now,” said Mauson, “this house will soon catch fire.” People looked at each other in surprise. Mauson asked them to look at the bottles and focus on the table cloth. After a while the cloth gave off a burning smell and began to catch fire!
The mystery of fire was discovered, but the police wouldn’t believe him and insisted that Negroes had been the firebugs. Instead they arrested Mauson and put him into prison. But Mauson said he would never turn against science.
【小题1】
The town was never peaceful, for fire broke out .
| A．in the afternoon | B．in summer | C．at any time | D．A and B |
Why did the police arrest all the Negroes?
| A．One of them had jumped out of the home on fire. |
| B．They were suspected to be the firebugs. |
| C．The police hated the Negroes. |
| D．The Negroes knew something about the fires. |
Drinking in a pub, Mauson realized what the actual fact was .
| A．by experiment | B．by backing the bottles |
| C．through the hot sunrays | D．by accident |
By making an experiment, they knew the real firebug was .
| A．the Negroes | B．bottles | C．sunrays | D．plastic plates |
Mauson was put into prison, because .
| A．he had told a lie |
| B．he had fund out the real firebug |
| C．he had turned against science |
| D．he had made friends with the Negroes |
More than 1.5 billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like Professor Irvine. In the late 1990s, he was working in Nepal when his return flight was canceled. A delay gave him time to take a fourteen-day hiking trip in the Himalayas.
One day he looked in the window of a school and noticed how dark it was. This is a common problem for millions of children around the world. Many families use kerosene oil (煤油) lamps. There are many problems with these lamps. They produce only a small amount of light. They are dangerous to breathe. And they are a big fire danger, causing many injuries and deaths each year. Kerosene costs less than other forms of lighting, but it is still costly in poor countries. Professor Irvine says many people spend over 100 dollars a year on the fuel.
When he returned to Canada, he began researching ways to provide safe and clean lighting. He began experimenting with light-emitting diodes (发光二极管), LEDs, at his lab. As a professor of renewable energy, he already knew about the technology. Light-emitting diodes are small glass lamps that use much less electricity than traditional bulbs (灯泡) and last much longer. He used a one-watt bright white LED made in Japan. He found it on the Internet and connected it to a bicycle-powered generator (发电机). He remembers thinking it was so bright that a child could read by the light of a single diode.
In 2000, after much research and many experiments, he returned to Nepal to put the systems into homes. Now the homes of 25,000 people in 51 countries have been equipped with it. “The one-time cost of our system which basically lives forever, as well as the solar panel — is less than one hundred dollars. So, one year of kerosene would pay for a solid-state lighting system,” he said. Now his aim is to develop a lower-cost lighting system. In January, Irvine is leaving the University of Calgary. He has also decided to start his own company in India.
【小题1】We can learn from the second paragraph that kerosene oil lamps ______.
| A．cost more than other forms of lighting |
| B．have damaged children’s eyesight |
| C．have wasted only a little fuel |
| D．have a lot of disadvantages |
| A．whether it can work without electricity |
| B．whether it can work well with less electricity |
| C．whether it can last longer than a generator |
| D．whether it is brighter than a traditional bulb |
| A．likes India rather than Nepal |
| B．is good at making new kinds of bulbs |
| C．is giving up his job in the university |
| D．is to earn much money from his company |