A single night of taking the drug Ecstasy (摇头丸) can cause serious brain damage and speed up the start of Parkinson’s disease, scientists say. Just two or three Ecstasy tablets can permanently destroy brain cells that affect movement and reasoning, according to American research that links the drug to Parkinson’s for the first time.
A study by a team at Johns Hopkins University in Baltimore, Maryland, involving squirrel monkeys and baboons (狒狒) found that both species suffered permanent damage to key cells, which are lost in Parkinson’s, after receiving three low doses（剂量）of Ecstasy at three-hour periods.
The study is particularly important because baboons are one of the best animal models for the human brain. George Ricaurte, who led the research, said that the widespread abuse of drug might have caused severe damage. “The most troubling result is that young adults using Ecstasy may be increasing their risk of developing Parkinsonism as they get older.”
Alan Leshner, a former director of the US National Institute on Drug Abuse, said, “This study emphasizes the multi-aspect damage that Ecstasy causes to users. We’ve long known that repeated use damages brain cells. But this study shows that even very occasional use can have long-lasting effects on many different brain systems. It sends an important message to young people: don’t experiment with your own brain.”
Janet Betts, a mother whose teenage daughter Leah died after a single Ecstasy tablet in 1995, said, “This comes as no surprise. But people can’t see the effects at first, and they say it won’t happen to them. We’ll see the symptoms later, just as we have with s
moking.” The article is intended to ______.
| A．explain the bad effects of drugs on people’s health |
| B．warn young people of the risk of taking the drug Ecstasy |
| C．persuade people out of such bad habits as smoking and using drugs |
| D．tell us the links between the drug Ecstasy and Parkinson’s disease |
We know from the passage that a low dose of Ecstasy ______.
| A．won’t cause serious brain damage |
| B．can permanently destroy one’s brain cells |
| C．will result in immediate symptoms |
| D．may bring on Parkinson’s at once |
Why are squirrel monkeys and baboons involved in the experiments?
| A．Because their brain is similar to human being’s. |
| B．Because these animals usually take drugs. |
| C．Because these animals will soon get well after the experiment. |
D．Because there is a  model in the animals’ brains. |
The underlined word “This” in the last paragraph probably means that ______.
| A．Leah died after a single Ecstasy tablet in 1995 |
| B．taking drug has the same symptoms as smoking |
| C．occasional use of the drug can have long-lasting effects on the brain systems |
D．people have long known that re peated use of the drug damages brain cells |
阅读下面短文，根据第73至第75小题的具体要求，简要回答问题。
Every January， Breckenridge hosts the International Show Sculpture Championships. Fourteen teams travel from all over the world to
Switzerland to compete. Teams sculpt for sixty-five hours over five days. Each team hopes that when the time is up， its sculpture will be judged the best
As the championship begins， the fourteen teams are faced with huge blocks of snow that weigh twenty tons each. The sculptors bring out their
vorite tools that work best on the hard iced snow， but they are not allowed to employ tools that use electricity.
Most teams are inspired by what they have seen in daily life. For example， one team carved a teapot with tea pouring out. Another team sculpted a little cat on its hind feed（后脚） reaching into a fish bowl complete with water ripples（涟漪） and a crab（螃蟹） trying to attack the cat. In 2006， Team USA sculpted a golden dog looking at its image reflected in a mirror. To create the effect that the little dog saw its reflection in the glass， the artists carved two dogs facing each other with their paws （脚爪） touching.
As the final hours of the competition tick by， exhausted team members add last-minute details. They use small brooms to brush off snow caught in tiny holes. One team member counts down the last five minutes while others are busy cleaning up the tools. If they leave any tools behind， they will be out. When the whistle blows， everyone must step away from the sculpture. The judges then vote on creativity， technical skill， and visual impact（视觉效果） of the designs
In 2006， Team USA took firs place for their golden dog sculpture titled “Discovery”。 But the competition is not just about medals and ribbon. “It‘s not about the prize，” said Rob Neyland， Team USA’s captain. “It‘s about touching the audience.”
Every year， as the championship ends， each team is already dreaming of the next masterpiece it will design.What kind of tools are the sculptures NOT permitted to use？（回答词数不超过6个）
What gives the sculptors ideas for their creative work？（回答词数不超过9个）
Why did Team USA win the competition in 2006？（回答词数不超过15个）
In the U.S., people prefer waiting for a table to sitting with people they don’t know. This means a hostess may not seat a small group until a small table is available, even if a large one is. If you are sitting at a table with people you don’t know, it is impolite to light up a cigarette without first asking if it will disturb them.
At American restaurants and coffee shops you are usually served tap water before you order. You may find the bread and butter is free, and if you order coffee, you may get a free refill.
Most cities and towns have no rules about opening and closing time for stores or restaurants, though they usually do make rules for bars. Especially in large cities, stores may be open 24 hours a day.
Serving in restaurants is often large; too large for many people. If you can’t finish your meal but would like to enjoy the food later, ask your waitress or waiter for a “doggie bag”. It may have a picture of a dog on it, but everybody knows you’re taking the food for yourself.
Supper and dinner are both words for the evening meal. Some people have “Sunday dinner”. This is an especially big noon meal.
Tips are not usually added to the check. They are not included in the price of the meal, either. A tip of about 15% is expected and you should leave it on the table when you leave. In some restaurants, a check is brought on a plate and you put your money there. Then the waiter or waitress brings you your change.
1. Which statement is true?
A. American people like sitting with people they don’t know.
B. Tips shouldn’t be given to the waiter or waitress.
C. Orange juice is served before you order
D. American people would not light a cigarette if the people who sit at the same table mind their smoking.
2. What does the underlined word “doggie bag” mean in the article? It means ______.
A. a bag with a picture of a dog on it
B. a bag used to carry dogs
C. a small bag for taking the food left over home to enjoy it later
D. a small bag for taking the food left over home for dogs
3. Sunday dinner is _______.
A. a dinner in the evening B. a big noon meal
C. a big lunch Sunday D. a supper on Sunday
Specialists say that it is not easy to get used to life in a new culture. “Culture shock” is the term these specialists use when talking about the feelings that people have in a new environment. There are three stages of culture shock, say the specialists. In the first stage, the newcomers like their new environment. Then, when the fresh experience dies, they begin to hate the city, the country, the people, and everything else. In the last stage, the newcomers begin to adjust to their surroundings and, as a result, enjoy their life more.
There are some obvious factors in culture shock. The weather may be unpleasant. The customs may be different. The public service systems—the telephone, post office, or transportation—may be difficult to work out. The most simple things seem to be big problems. The language may be difficult.
Who feels culture shock? Everyone does in this way or that. But culture shock surprises most people. Very often the people having the worst culture shock are those who never had any difficulties in their home countries and were successful in their community. Coming to a new country, these people find they do not have the same established positions. They find themselves without a role, almost without an identity. They have to build a new self-image.
Culture shock gives rise to a feeling of disorientation (迷惘). This feeling may be homesickness. When homesick, people feel like staying inside all the time. They want to protect themselves for the strange environment, and create an escape inside their room for a sense of security. This escape does solve the problem of culture shock for the short term, but it does nothing to make the person familiar with the culture. Getting to know the new environment and gaining experience—these are the long-term solutions to the problem of culture shock.
1. According to the passage, factors that give rise to culture shock include all of the following
except _____.
A. language communication B. weather conditions and customs
C. public service systemsD. homesickness
2. According to the passage, the more successful you are at home, __________.
A, the fewer difficulties you may have abroad
B. the more difficulties you may have abroad
C. the more money you will earn abroad
D. the less homesick you will feel abroad
3. What is the main idea of the last passage?
A. Escape unfamiliar environment
B. The feeling of homesickness.
C. Homesickness can solve the problem of culture shock.
D. The best way to overcome culture shock: get familiar with the new culture.
In many ways, our society doesn’t simply prepare for the kinds of lives that the elderly must lead. We have made medical advances that allow people to live longer than ever before, but we do not seem to know what to do with them after we have saved their lives. Too little allowance (津贴) is made for the person who is no longer earning a living, who can not walk long distances or drive a car, or who may have physical or mental disabilities that keep him from communicating with others. The institutional (慈善机构的) care we give our older people is a good reflection of the overall attitude of our society toward the aged.
In the past few years, nursing homes have received wide attention as boring, meaningless places where old people often have little else to do but wait for the end of their lives. Elderly wards in mental hospitals are even worse. One of the most shocking things abort nursing homes has been the unwillingness of people on the outside to show real concern for what happens in these institutions. Even people who are entrusting (委托) a parent to the care of a home rarely ask about the nurse-parent ratio (比率), about the kinds of creative facilities or physical treatment equipment available, or about the frequency of doctors’ visits.
And the government has provided federal money without enforcing high standards of care. In fact federal standards were lowered in 1974. Therefore, in some sense our concern for the aged seems to be moving backwards, not forwards. This picture is in striking contrast to the treatment of respectable patriarchs (男长者) and matriarchs (女长者) in many societies.
1. What would be the most suitable title for this passage?
A. Failure of Care for the Elderly B. The Elderly
C. Institutional Care D. A National Shame
2. We can conclude from this passage that the writer feels ____.
A. nursing homes should be got rid of
B. a country that can help people live longer should also be able to care for them better
C. people have no thanks toward their parents
D. our society’s institutions need to be reformed
3. The writer believes that people who place a parent in a nursing home should ____.
A. demand higher federal standards
B. consider the example set in other countries
C. be ashamed of not keeping the parents in their own homes
D. investigate it first
4. The writer complains ____.
A. about the indifference of some people towards nursing homes
B. about the shortage of equipment in nursing home
C. that nursing homes keep the aged from communicating with others
D. both A and B
Shanghai-More Shanghai people are renting cars to travel over the coming National Day holiday, Tom reported today.
Most cars in large local car-rental companies such as Yongda, Anji and Dazhong are leased so far with the Buick Sport Utility Vehichle (SUV) in high demand.
Santana and Jetta were previously the most popular car models rented by Shanghai people for travel, while the high-end Buick models have generated great interest among locals renting cars these years. However, the rent on a Buick GL or GS model is between 650 yuan and 750 yuan a day, nearly double those of the Santana and Jetta cars.
Compared with Santana, Buick looks better, has greater capabilities and is safer and more comfortable, said a car leaser. “I don’t mind paying a higher cost for a Buick to enjoy the holiday,” he said.
SUV cars are very popular in the car renting market, according to some car rental firms.
“All the 31 Buick GL8SUV cars were leased out several days ago,” said an employee with the Shanghai Yongda Car Rental Co.
local people are more inclined (倾向于) to go travel with groups of friends, so SUV cars are a better choice, said an industry analyst (分析家). Moreover, SUV car are safer on rugged and rough roads, the analyst said.
According to the data, most people rented cars for seven days; a less number rented them for two or three days.
1. What’s the best title for the passage ?
How Shanghai People Spend Their Holidays
Why So Many Shanghai People Rented Cars for Holidays
More Shanghai Rent Cars for Holidays
Shanghai Rent SUV Instead of Santana and Jetta
2. According to the passage we can see SUV is ________.
the name of a car-rental company
the name of an expensive car
the name of an ordinary car
the place for the holiday
3. At present for how much money can you rent a Santana or Jetta for a day ?
Between 650 yuan and 750 yuan.
Between 350 yuan and 380 yuan.
About 450 yuan.
Less than 300 yuan.
4. Why do many people choose SUV cars for their holidays ?
Because they are cheaper.
Because they are convenient on rugged and rough roads.
Only because they can run on bugged and tough roads.
Because no Santana and Jetta can be rented now.