题目内容
As we know, the earth’s climate has changed over time. The present rate of climate change depends, in large part, on human activities. Today, people all over the world are making everyday choices that help the environment. Small actions matter and they all make a difference. In other words, climate change is your business.
A woman in Nicaragua buys fluorescent(荧光的) light bulbs that are 80 percent more energy-saving than traditional ones. Many governments are now subsidizing energy-saving lights to encourage people to turn to them. Consumers are discovering that the new-generation bulbs help them save money in the long run.
Agriculture accounts for about 14 percent of global greenhouse gas emissions（排放）, and transporting the food around adds to the environmental cost. There is a team of young vegetable growers in the United Kingdom who want to encourage kids to start planting their own fruit and vegetables.
A young lawyer wearing business clothes rides her bicycle to work in a large U.S. city. She’s been biking to work every day for the past two years and says it’s a lot easier than many people think. A recent study found that more Americans bike or walk to work today than before.
A university student from southeastern China carries a reusable shopping bag to cut back on disposable（一次性的） plastics. Some large shopkeepers have removed paper and plastic bags, and consumers are responding.
In Canberra, Australia, summers are hot and winters cold. To save electricity, Adam Wilson in Canberra uses an energy-saving heating system, and he keeps the temperature lower than he did in years past. He still makes it through the summer without air conditioning.
60. The passage mainly tells us that .
A. human is to destroy the environment
B. the global warming is getting worse
C. saving energy is of great necessity
D. climate change is concerned with everyone
61. The underlined word “subsidize” in the second paragraph probably means “ ”.
A. charge B. produce C. search for D. give allowance
62. Which of the following is true?
A. Many people in Nicaragua go to work on foot or by bike.
B. University students from China always carry disposable shopping bags.
C. Agriculture should be responsible for part of the global gas emissions.
D. The governments don’t expect consumers to use the new-generation bulbs.
63. What is the last paragragh mainly about?
A. The temperature varies with the season.
B. The energy-saving heating system can adjust the temperature.
C. An energy-saving heating system will come into use.
D. Adam Wilson is skilled in inventing the energy-saving equipment.
DDCB
Unless we spend money to spot and prevent asteroids now，one might crash into Earth and destroy life as we know it，say some scientists.
Asteroids are bigger versions of the meteoroids(流星)that race across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands whose orbits put them on a collision course with Earth.
Buy $ 50 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one，the scientists say，we'll have a way 
to change its course.
Some scientists favor pushing asteroids off course with nuclear weapo
ns. But the cost wouldn't be cheap. I
s it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty rare-but if one did fall，it would be the end of the world. “If we don't take care of these big asteroids，they'll take care of us,” says one scientist. “It's that simple.”
The cure，though，might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them，” said a New York Times article.
【小题1】What does the passage say about asteroids and meteoroids?
| A．They are heavenly bodies different in composition. |
| B．They are heavenly bodies similar in nature. |
C．There are more asteroids th an meteoroids. |
| D．Asteroids are more mysterious than meteoroids. |
| A．It is very unlikely but the danger exists. |
| B．Such a collision might occur once every 25 years. |
| C．Collisions of smaller asteroids with Earth occur more often than expected. |
| D．It's still too early to say whether such a collision might occur. |
| A．It sounds practical but it may not solve the problem. |
| B．It may create more problems than it might solve. |
| C．It is a waste of money because a collision of asteroids with Earth is very unlikely. |
| D．Further research should be done before it is proved applicable. |
| A．while pushing asteroids off course nuclear weapons would destroy the world |
| B．asteroids racing across the night sky are likely to hit Earth in the near future |
| C．the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime |
| D．workable solutions still have to be found to prevent a collision of asteroids with Earth. |
| A．Optimistic. | B．Critical. | C．Objective. | D．Subjective. |