The coyote (丛林狼) , that clever animal of wide-open spaces, has come to the nation’s capital. In fact, coyotes have spread to every corner of the United States, changing their behaviors to fit new environments and causing researchers to deal with a troublesome new kind of creature：the city coyote.
The coyote originally lived in the middle of the continent. One of its most obvious characters is its smartness, which has made the animal a notorious (臭名昭著的) pest. Hunters trapped, shot and poisoned more than a million coyotes in the 1900s. It’s still one of America’s most-hunted animals. Yet the coyote has survived. How has the coyote shown this extraordinary ability? “I guess if you wanted to use one word, it’d be ‘plasticity’ , ” says Erie Gese, an expert at Utah State University. Coyotes can live alone, in pairs, or in large packs like wolves, hunt at night or during the day, occupy a small region or an area up to 40 square miles, and live on all sorts of food, from lizards (蜥蜴) and shoes, to ants and melons.
Unbelievably people helped coyotes increase when they killed most of the wolves in the United States. The spreading of coyotes into city areas, though, is recent. They travel at night, crossing sidewalks and bridges, running along roads and ducking into culverts (钻入洞) and underpasses. No one knows why coyotes are moving into cities, but experts explain that cleverer, more human-tolerant (不怕人的) coyotes are teaching urban survival skills to new generations.
Occasionally, coyotes might attack human beings. There have been about 160 attacks on people in recent years. Therefore, people have been consistently told not to feed coyotes or leave pet food unsecured. That, plus a large trapping program in the neighborhood, has cut down on the coyote population.The underlined word “plasticity” in Paragraph 2 refers to ________.
| A．the ability to fit the environment | B．notorious smartness |
| C．hunting ability | D．being human - tolerant |
The aim of the passage is to ________.
| A．tell people how to fight against coyotes |
| B．tell us why the coyote is the most hunted animal |
| C．supply the reason why the coyote is a kind of notorious pest |
| D．explain how the coyote has spread to and survived in cities |
According to the passage, coyotes ________.
| A．originally lived in the west of the continent |
| B．sleep during the day but look for food at night |
| C．are teaching survival skills to their younger generations |
| D．suffered a population decrease because people killed wolves |
According to the passage, to cut down on the coyote population, people are advised to ________.
| A．leave pet food secured | B．keep coyotes in small regions |
| C．force coyotes to live alone | D．avoid using trapping programs |
Losing a baby tooth can be fun for a kid. You can put it under your pillow and look forward to finding some money there in the morning. And then you can watch your new permanent(永恒的) tooth grow in its place.
But if a permanent tooth falls out, that’s a problem. There isn’t another one under the gum(齿龈)that can replace it. Unfortunately, this happens to some older people. And if permanent teeth fall out-or need to be pulled-an older person might need dentures.
Dentures, known as false teeth, are a set of replacement teeth for any teeth that are missing. There are partial dentures, which take the place of only a few teeth and prevent the others from changing position. If all the teeth are gone, the person would need complete dentures, which replace every tooth in the mouth.
Dentures can cause pains at first and take some time to get adjusted to. They also need special care. They should be brushed daily with a special denture brush and cleanser and soaked in denture solution when not in the mouth.
Dentures are important for older folks because, without teeth, it’s hard to smile, talk, and eat properly. But it can be a little weird if you see someone take out his or her dentures. It can also be strange to see someone, like a grandparent, without dentures in because he or she won’t have any teeth. Try not to make fun of the person because this could cause hurt feelings.
People usually lose their permanent teeth due to periodontal disease, or gum disease, which is caused by bacteria that attacks the gums. Diseased gums aren’t strong and healthy, so teeth can get loose and fall out. Older people often have many cavities(洞)that have been filled over the years, and these fillings can weaken over time, leading to more tooth decay(腐烂).If one of your baby teeth falls out, he or she .
| A．should have a false tooth fixed in its place |
| B．have to put it under your pillow at once |
| C．will gain a permanent tooth in future |
| D．can exchange it for some money |
A person wearing dentures .
| A．should brush them with a special denture brush every few days |
| B．will take a very long time to adjust himself or herself to them |
| C．will experience unpleasant feelings at the beginning of fixing them |
| D．should use denture solution to soak them in his or her mouth |
Which of the following is NOT true according to the passage?
| A．Partial dentures can prevent the remaining teeth from changing position. |
| B．Old people will find it hard to smile, talk, and eat properly without teeth. |
| C．A person’s teeth will possibly get loose if diseases strike his gums. |
| D．It is hard for a person to wear dentures if all his teeth have fallen out. |
What does the underlined word “weird” mean in the fifth paragraph?
| A．inconvenient | B．strange | C．uncomfortable | D．impolite |
American society is not nap (午睡)friendly . In fact , says David Dings , sleep specialist at the University of Pennsylvania School of Medicine , “There’s even a prohibition (禁止) against admitting we need sleep”. Nobody wants to be caught napping or found asleep at work . To quote a proverb : “Some sleep five hours , nature requires seven , laziness nine and wickedness(淘气的) eleven.”
The way not to fall asleep at work is to take naps when you need them . “We have to totally change our attitude toward napping ,” says Dr. William Dement of Stanford University , the godfather of sleep research .
Last year a national commission led by Dement identified(发现) an “American sleep debt” which one member said was as important as the national debt . The commission was concerned about the dangers of sleepiness : people causing industrial accidents or falling asleep while driving . This may be why we have a new sleep policy in the White House . According to recent reports , President Clinton is trying to take a half---hour snooze (瞌睡) every afternoon .
About 60 percent of American adults nap when given the opportunity . We seem to have “a mid afternoon quiet phase ,” also called “a secondary sleep gate .” Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make us refreshed . Clearly , we were born to nap .
We superstars of snooze don’t nap to replace lost shut--eye or to prepare for a night shift . Rather , we “snack” on sleep ,whenever , wherever and at whatever time we feel like it . I myself have napped in buses , cars , planes and on boats ; on floors and beds ;and in libraries , offices and museums . The research done by the Dement Commission shows that Americans .
| A．don’t like to take naps |
| B．are terribly worried about their national debt |
| C．think that lack of enough sleep causes many accidents |
| D．have caused many industrial and traffic accidents |
The purpose of this article is to .
Many of us already know about several American superstitions(迷信). Having a black cat cross your path, walking under a ladder, and breaking a mirror are all bad luck. In addition to these, there are many other superstitions that are worth knowing. Understanding them will keep you safe from evil spirits—if you believe in such things—and impress your American friends when you mention them.
Like the superstitions in other cultures, American superstitions often involve the things important in daily life, such as health, numbers, and marriage. For example, have you ever had a cough that would not go away? According to one American superstition, you should take a piece of your hair and put it between two slices of buttered bread. Next, feed this hair sandwich to a dog and say, “Eat well, you hound, may you be sick and I be sound.”This will trick the evil spirits and help your cough. It will also raise some eyebrows if you try it.
In American superstitions, the number three is very important. Often, Americans will say, “All things come in threes.” Three is lucky because it represents the traditional family: mother, father, and child. Therefore, gifts, letters, and guests will often arrive at your home in groups of three. However, it is also possible for bad events, like accidents and funerals, to come in threes as well.
Another time people pay attention to superstitions is when they get married. During a wedding, brides must wear or carry“something old, something new, something borrowed, and something blue.”The old and borrowed things will bring luck to the person who gives them to the bride. The new and blue things will bring good fortune to the bride herself. The next time someone you know is getting married, be sure to recite this phrase.
As it would be unlucky to discuss one more superstition, we will wind things up here. Keep your fingers crossed, and stay lucky!The passage is most probably entitled(命名)“”.
| A．American’s Bad Luck | B．Cross-culture and Superstitions |
| C．American Superstitions | D．Daily Life in Superstitions |
The underlined sentence in the second paragraph“It will also raise some eyebrows if you try it”means:.
| A．When you try it, the dog will raise its eyebrows |
| B．You will make some people surprised when you try this trick |
| C．Only if you raise your eyebrows can the trick work |
| D．You will believe in the trick after you try it |
In American’s view, the number three is a(n)number.
| A．lucky | B．unlucky | C．special | D．ordinary |
On the wedding, the bride often uses old and borrowed things so as to.
| A．save some money for the wedding |
| B．bring good luck to the people who give them to the bride |
| C．give the good luck to the bride herself |
| D．pass the bad luck to others |
Imagine you’re at a party full of strangers. You’re nervous. Who are these people? How do you start a conversation? Fortunately, you’ve get a thing that sends out energy at tiny chips in everyone’s name tag (标签). The chips send back name, job, hobbies, and the time available for meeting – whatever. Making new friends becomes simple.
This hasn’t quite happened in real life. But the world is already experiencing a revolution using RFID technology.
An RFID tag with a tiny chip can be fixed in a product, under your pet’s skin, even under your own skin. Passive RFID tags have no energy source – batteries because they do not need it. The energy comes from the reader, a scanning device (装置), that sends out energy (for example, radio waves) that starts up the tag immediately.
Such a tag carries information specific to that object, and the data can be updated. Already, RFID technology is used for recognizing each car or truck on the road and it might appear in your passport. Doctors can put a tiny chip under the skin that will help locate and obtain a patient’s medical records. At a nightclub in Paris or in New York the same chip gets you into the VIP (very important person ) section and pays for the bill with the wave of an arm.
Take a step back: 10 or 12 years ago, you would have heard about the coming age of computing. One example always seemed to surface: Your refrigerator would know when you needed to buy more milk. The concept was that computer chips could he put everywhere and send information in smart network that would make ordinary life simpler.
RFID tags are a small part of this phenomenon. “The world is going to be a loosely coupled set of individual small devices, connected wirelessly.” Predicts Dr. J. Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it. And how many beers, accompanied by how many biscuits.
When Marconi invented radio, he thought it would be used for ship – to – shore communication, not for pop music. Who knows how RFID and related technologies will be used in the future. Here’s a wild guess: Not for buying milk.The article is intended to .
| A．warn people of the possible risks in adopting RFID technology |
| B．explain the benefits brought about by RFID technology |
| C．convince people of the uses of RFID technology |
| D．predict the applications of RFID technology |
We know from the passage that with the help of RFID tags, people.
| A．will have no trouble getting information about others |
| B．will have more energy for conversation |
| C．will have more time to make friends |
| D．won’t feel shy at parties any longer |
Passive RFID tags chiefly consist of .
| A．scanning devices | B．radio waves | C．batteries | D．chips |
The last paragraph implies that RFID technology .
| A．will not be used for such matters as buying milk |
| B．will be widely used, including for buying milk |
| C．will be limited to communication uses |
| D．will probably be used for pop music |
Leeds, England--A Leeds University psychology(心理学) professor is teaching a course to help dozens of Britons forgive their enemies.
“The hatred(痛恨) we hold within us is a cancer,” Professor Ken Hart said, adding that holding in anger can lead to problems such as high blood pressure and heart disease.
More than 70 people have become members in Hart’s first 20-week workshop in London ---a course he says is the first of its kind in the world.
These are people who are sick and tired of living with the memory. “They realize their bitterness(痛楚) is a poison they think they can pour out, but they end up drinking it themselves, ” said Canadian-born Hart.
The students meet in groups of eight to ten for a two-hour workshop with a visit to an adviser every fortnight.
The course, ending in July, is expected to get rid of the cancer of hate in these people. “People have lots of negative(否定) attitudes(态度) towards forgiveness,” he said. “People confuse(使混乱) forgiveness with forgetting. Forgiveness means changing from a negative attitude to a positive one.”
Hart and his team have created instructions to provide the training needed.
“The main idea is to give you guidelines on how to look at various angers and how they affect you, and how to change your attitude toward the person you are angry with,” said Norman Claring-bull, a senior expert on the forgiveness project.
Hart said he believes forgiveness is a skill that can be taught, as these people “want to get free from the past”.The author wrote this passage in order to ______.
| A．persuade us to go to Hart’s workshop |
| B．tell us the news about Hart’s workshop |
| C．tell us how to run a workshop like Hart’s |
| D．help us to look at different angers |
From the passage we can find that ________.
A. high blood pressure and heart disease are caused by hatred
B. high blood pressure can only be cured by psychology professors
C. without hatred, people have less trouble connected with blood and heart
D people who suffer from blood pressure and heart disease must have many enemiesIn Hart’s first 20-week workshop, people there can ________.
| A．meet their enemies | B．change their minds |
| C．enjoy the professor’s speech | D．learn how to quarrel with others |
If you are a member in Hart’s workshop, you’ll have to _________.
| A．pay much money to Hart | B．go to the workshop every night |
| C．attend a gathering twice a month | D．pour out everything stored in your mind |