She didn’t come to the party last Sunday. __________, she must have made the party more exciting.
A. If she came B. Would she come C. Had she come D. Did she come
— Are you going there with us?
— If Mary wants to go, __________.
A. I also go B. so do I C. so I will D. so will I
Microwaves may be great at warming up food, but what about warming people?
Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And despite popular ideas about microwaves, this technique would be safe, according to Charles R. Buffler of the Microwave Research Center in Marlborough, New Hampshire. Low-power microwaves only penetrate (贯穿) the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects.
To test this idea, Buffler subjected himself to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron (磁控管). He found that a person will start to feel warmth at about 20 milliwatts per square centimeter (mw. /sq.cm.); a satisfactory feeling of warmth occurs between 35 and 50 mw./sq.cm. By comparison, a person standing in noonday summer sun feels the amount of 85 mw./sq.cm. And a frozen meat pie in your microwave oven receives about 1000 mw./sq. cm.
In houses of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwaves oven heats up a hamburger, but not the plate it’s on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.)
While it might be some time before homeowners are comfortable enough with the idea to set up whole body microwave heaters in houses, Buffler says microwaves may attract livestock farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warm the lambs safely and quickly.
1. Which of the following can tell the main idea of the passage?
A. A new heating system. B. A new microwave oven.
C. A popular technique. D. The magnetron.
2. The test conducted by Buffler shows that when a person feels comfortable warmth, he receives about ____.
A. 20 mw. / sq. cm. B. 40 mw. / sq. cm.
C. 60 mw. / sq. cm. D. 85 mw. / sq. cm.
3. According to paragraph 4, which of the following fills the room with low-power microwaves?
A. The magnetron. B. The motion detector.
C. The microwave oven. D. The radiation-absorbing chemical.
4. Which of the following statements about microwave heaters would Buffler most probably agree with?
A. Microwave heaters will soon be widely used by homeowners.
B. Microwave heaters sometimes make people feel uncomfortable.
C. Microwave heaters will be probably first used by livestock farmers to protect their lambs in winter.
D. Microwave heaters cannot be accepted by the public because they are somewhat unsafe.
As you move around your home, take a good look at the things you have. It is likely that your living room will have a television set and a video, and your kitchen a washing machine and a microwave oven. Your bedroom drawers will be filled with almost three times as many clothes as you need. You almost certainly own a car and possibly a home computer, holiday abroad at least once a year and eat out at least once a week.
Now, perhaps, more than ever before, people are wondering what life is all about, and what it is for. Seeking material success is beginning to trouble large numbers of people around the world. They feel that the long hours work culture to make more money to buy more things is eating up their lives, leaving them very little time or energy for family or pastimes. Many are turning to other ways of living and downshifting is one of them.
Six percent of workers in Britain took the decision to downshift last year. One couple who downshifted is Daniel and Liz. They used to work in central London. He was a newspaper reporter and she used to work for an international bank. They would go to work by train every day from their large house in the suburbs (郊区), leaving their two children with a nanny (保姆). Most evenings Daniel wouldn’t get home until eight or nine o’clock, and nearly twice a month he would have to fly to New York for meetings. They both earned a large amount of money but began to feel that life was passing them by.
Nowadays, they run a farm in the mountains of Wales. “I always wanted to have a farm here,” says Daniel, “and we took almost a year to make the decision to downshift. It’s taken some getting used to, but it has been worthy of. We have to think twice now about spending money on car repairs and we no longer have any holidays. However, I think it’s made us stronger as a family, and the children are a lot happier.”
Liz, however, is not quite sure. “I used to enjoy my job, even though it was hard work and long hours. I’m not really a country girl, but I suppose I’m gradually getting used to looking after the animals. One thing I do like, though, is being able to see more of my children. My advice for other people wanting to do the same is not to think about it too much or you might not do it at all.”
1.What do the first two paragraphs tell us?
A. People seldom work long hours to make money.
B. People hardly buy more things than necessary.
C. People are sure everything they own is in the right place.
D. People realize there is more to life than just making money.
2. When Daniel was a reporter he _____.
A. lived in central London B. disliked his job
C. missed his children D. was well paid
3. Daniel and Liz both agree that the move to the farm _____.
A. was easy to organize B. has improved family life
C. was extremely expensive D. has been a total success
4. What does the underlined “it” in the last paragraph refer to?
A. Child-caring. B. Liz’s advice. C. Downshifting. D. Liz’s job.
Yellowstone Tour & Travel has been helping people plan their Yellowstone Park vacations for 25 years. We are a one-stop shop (一站式服务点) for all Yellowstone vacations including arrangements for Yellowstone tours, activities, and air and ground transportation.
Yellowstone Tour & Travel specializes in individual and family Yellowstone vacations, group tours, and international travelers. Take a moment to go through our website and learn more! We offer:
Yellowstone and Grand Teton Park Guided Summer Van (有篷车) Tours --- Daily summer “See Yellowstone” Park van tours and geyser (间歇泉) gazing tours, Yellowstone evening wildlife tours, and Yellowstone photography tours. Don’t miss Old Faithful, Yellowstone’s own Grand Canyon, or Mammoth Hot Springs. We also offer a Grand Teton National Park and Jackson Wyoming mini-bus tour. See Yellowstone wolves, grey bears, buffalo, and try Yellowstone bird watching.
Lamar Valley Wolf & Wildlife Tour --- Add a whole new plan to your Yellowstone Snowmobile adventure with our new “Lamar Valley Wolf and Wildlife Tour.” Lamar Valley is located in northern part of Yellowstone. Four wolf groups make Lamar Valley their home constantly challenged by other moving groups in the park. This is your best chance to see the wolves in Yellowstone in winter!
Snowmobile Yellowstone Park --- Discover the wonder of Old Faithful in winter, herds wild deer and cows within your reach; once-in-a-lifetime experience with your professional Yellowstone Guide. Watch Yellowstone wolves and bald eagles.
Adventure Snowmobile Packages --- Offered in three surrounding National Forests; snowmobile to Two Top Mountain or into Island Park, Idaho.
REMEMBER: Yellowstone National Park has seasonal closures of some roads and entrances. Before planning your vacation, please call us and we can ensure that your route / activities will be available!
Please visit our website and contact us for further information or assistance in planning your Yellowstone Country Adventure Vacation, or book a reservation online! Make your Yellowstone Dream a reality.
1. What can we learn from the first paragraph?
A. Yellowstone Tour & Travel is a company with a history of over 25 years.
B. Yellowstone Tour & Travel is a company serving people 25 years.
C. Yellowstone Tour & Travel has a one-stop shop for most vacations.
D. Yellowstone Tour & Travel can lend visitors planes and ships.
2.Yellowstone Tour & Travel can serve the following EXCEPT _________.
A. girl vacations B. family vacations C. group tours D. international travels
3. If you want to see grey bears, buffalo, you may join __________.
A. Yellowstone and Grand Teton Park Guided Summer Van Tours
B. Lamar Valley Wolf & Wildlife Tour
C. Snowmobile Yellowstone Park
D. Adventure Snowmobile Packages
4. In Lamar Valley, you can have the best opportunity to see __________ in winter.
A. bald eagles B. buffalo C. grey bears D. wolves
Sharks have gained unfair reputation for being large fierce sea animals. That humanity’s unfounded fear and hatred of these ancient creatures are leading to a worldwide slaughter (大屠杀) may result in the extinction of many larger, coastal shark species. The shark is the victim of a warped (有偏见的) attitude of wildlife protection; we strive (努力) only to protect the beautiful, non-threatening parts of our environment. And, in our efforts to restore only non-threat parts of our earth, we ignore other important parts.
A perfect illustration of this attitude is the contrasting attitude towards another large sea animal, the dolphin. During the 1980s, environmentalists in the United States objected to the practice of hunting tuna (金枪鱼) in the Pacific Ocean since these nets also caught dolphins. The environmentalists generated enough political and economic pressure to prevent tuna companies from buying tuna that had been caught in drift nets. In contrast to this effort, the populations of sharks in the Pacific Ocean have decreased to the point of extinction and there has been very little effort by the same environmentalism to save this important species of wildlife in water. Sharks are among the oldest creatures on earth, having survived in the seas for more than 350 million years. They are extremely efficient animals, feeding on wounded or dying animals, thus performing an important role in nature of knocking out the weaker animals in a species. Just the fact that species such as the Great White Shark have managed to live in the oceans for so many millions of years is enough proof of their efficiency and adaptability to changing environment. It is time for humans, who may not survive another 1,000 years at the rate they are damaging the planet, to cast away their fears and begin considering the protection of sharks as creatures that may provide us with an insight into our own survival.
1. The best summary of the passage is __________.
A. sharks have such a bad reputation
B. how sharks become some of the oldest creatures on earth
C. sharks should be put under wildlife protection
D. the campaign to save dolphins was not extended to save sharks
2. How long have sharks been living on the planet?
A. More than 25 million years.
B. More than 150 million years.
C. More than 350 million years.
D. More than 500 million years.
3.Which of the following best describes the organization of this passage?
A. Specific(细节) to general. B. Cause and effect.
C. Statement and example. D. Time order.
4. How did environmentalists manage to protect dolphins?
A. They prevented fishermen from selling them for meat.
B. They pressured fishermen into protecting dolphins by law.
C. They created shelters where dolphin fishing was not allowed.
D. They brought political pressure against tuna companies.
