Exposure to environmental tobacco smoke (ETS)-also called “second-hand smoke” and “passive smoking” contains over 4 000 chemicals, including over 50 known carcinogens (致癌物) and many poisonous things. No safe level of ETS exposure has been proved. Nor is there any expectation that further research will identify such a level.
Several recent reviews have confirmed the serious risks to health and life associated with passive smoking. Long time exposure to second-hand smoke has been proved as a cause of many of the same diseases caused by active smoking, including lung cancer, cardiovascular (心脏血管的) disease, and childhood disease.
Living with a smoker has been shown to increase the risk of coronary heart disease (冠心病) among non-smokers by 25-30% (a recent study indicates that this figure may actually be higher). There is also growing evidence that passive smoking is causally linked to stroke in non-smokers, although further research is needed to estimate the risk.
Second-hand smoke is especially dangerous for young children and infants, being associated with sudden infant death, pneumonia, bronchitis (支气管炎), asthma (哮喘) and respiratory symptoms as well as middle ear disease. ETS exposure in pregnant women can cause lower birth weight, foetal (胎儿的) death and preterm delivery.
Most of the adverse health outcomes brought about by ETS show that the risk increases steadily with increasing exposure. The level of individual risk is lower compared to active smoking. Nevertheless, the fact that large numbers of people are exposed results in a substantial burden of disease.
Action on smoke-free environments would not only protect people from the harm of ETS exposure but also contribute to the reduction of tobacco consumption in the whole population. The health effects of reduced passive and active smoking would include reduced illness and death from major disease types-in particular lung cancer, coronary heart disease, and stroke-and increased life expectancy.
51. Which of the following statements is true? _______
A. Although ETS contains many harmful things, it is not unsafe.
B. The fact that second-hand smoke is safe has been recently found.
C. It is expected that further research will be done to test the level of ETS.
D. By far the safe level of ETS has not been found and will not in the future.
52. Cardiovascular disease can be caused by _______.
A. long time passive smoking    B. accidental active smoking
B. occasional passive smoking   D. short term active smoking
53. According to the article, the statements about the risk of coronary heart disease are wrong EXCEPT that________
A. if you smoke, the risk of this disease will increase by 25-30%. 
B. the non-smokers exposed to smoke will increase the risk of this disease by 25-30%.
C. for the smokers, the risk of getting this disease is higher than that of the non-smokers.
D. the non-smokers exposed to smoke will be more easily to get this disease than the smokers.
54. What does the underlined word “delivery” mean? ________.
A. Transferring to another     B. Giving birth   C. Throwing away   D. Giving out
55. What’s the author’s main purpose in writing this passage? ______
A. To introduce what is ETS.
B. To tell the readers how to avoid ETS.
C. To call for the action against ETS.
D. To warn the readers against smoking.

My grandfather worked as a carpenter. On this particular day, he was building some crates（木箱）for the clothes his church was sending to an orphanage in Brazil. On his way home, he found his glasses were gone. When he mentally replayed his earlier actions, he realized what happened. The glasses had slipped out of his pocket and fallen into one of the crates. His new glasses were heading for Brazil!
The Great Depression was at its height, and Grandpa had six children. He had spent twenty dollars for those glasses that very morning.
“It’s not fair,” he thought as he walked home angrily. “I’ve been very faithful in giving my time and money to my work, and now this.”
Several months later, the director of the orphanage came to the United States. He wanted to visit all the churches that supported him, so he came to my grandfather’s small church in Chicago.
He began by thanking the people for their kindness in supporting the orphanage. “But most of all,” he said, “ I must thank you for the glasses you sent last year. You see, some people had just come to the orphanage, destroying everything, including my glasses. I was desperate. Even if I had the money, there was simply no way of replacing those glasses. Along with not being able to see well, I experienced headaches every day, so my coworkers and I were very worried about this. Then your crates arrived. When I removed the covers, I found a pair of glasses lying on top.”
He paused long enough to let his words sink in. Then, he continued: “When I tried on the glasses, it was as though they had been made just for me!” The people listened, happy for the miraculous glasses. But they thought it was strange because there were no glasses on their list of items to be sent overseas.
Sitting quietly in the back, with tears streaming down his face, my grandfather, an ordinary carpenter realized his glasses had found a good place to go.
【小题1】The  underlined word “miraculous”（Paragraph 6）can be replaced by          .

In a few years, you might be able to speak Chinese, Korean, Japanese, French, and English
— and all at the same time. This sounds incredible, but Alex Waibel, a computer science professor at US's Carnegie Mellon University (CMU) and Germany's University of Karlsruhe, announced last week that it may soon be reality. He and his team have invented software and hardware that could make it far easier for people who speak different languages to understand each other.?
One application, called Lecture Translation, can easily translate a speech from one language into another. Current translation technologies typically limit speakers to certain topics or a limited vocabulary. Users also have to be trained how to use the programme.?
Another prototype(雏形机) can send translations of a speech to different listeners depending on what language they speak. “It is like having a simultaneous translator right next to you but without disturbing the person next to you,” Waibel said.?
Prefer to read? So-called Translation Glasses transcribe(转录) the translations on a tiny liquid-crystal(液晶) display(LCD) screen.?
Then there’s the Muscle Translator. Electrodes capture the electrical signals from facial muscle movements made naturally when a person is mouthing words. The signals are then translated into speech. The electrodes could be replaced with wireless chips implanted in a person's face, according to researchers.?
During a demonstration held last Thursday in CMU's Pittsburgh campus, a Chinese student named Stan Jou had 11 tiny electrodes attached to the muscles of his cheeks, neck and throat. Then he mouthed — without speaking aloud — a few words in Mandarin(普通话) to the audience. A few seconds later, the phrase was displayed on a computer screen and spoken out by the computer in English and Spanish: “Let me introduce our new prototype.”?
This particular gadget(器械),when fully developed, might allow anyone to speak in any number of languages or, as Waibel put it, “to switch your mouth to a foreign language”. “The idea behind the university's prototypes is to create ‘good enough’ bridges for cross-cultural exchanges that are becoming more common in the world,” Waibel said.?
With spontaneous(自发的) translators, foreign drivers in Germany could listen to traffic warnings on the radio, tourists in China could read all the signs and talk with local people, and leaders of different countries could have secret talks without any interpreters there.?
【小题1】 Which of the following statements is not TRUE?

The Chinese have used a method called acupuncture to help perform operations for about 4,000 years without putting the patient to sleep. This involves inserting（插入）flexible needles （针）into certain parts of the body. The needles used are available in a number of stores in China and everyone may buy them.
To learn how to use needle takes about one month of training. But to be skillful requires greater time. The person who performs the acupuncture knows how to insert the needles so the needles themselves are not painful. This person also knows where to place the needles so the patient feels no pain in the area where the operation is to be performed. The needles are not necessarily inserted near the place where the pain is to be prevented. In the past, a particular operation might require 25 or more needles placed in various parts of the body. But now this operation requires only 3 or 4 needles.
Today the Chinese doctors are trying to learn more about acupuncture. They are trying to develop a convincing theory to explain how the needles work in preventing pain, or, why a needle in the wrist（手腕）, for example, would prevent the pain in the area of the mouth.
A patient who needs an operation is given a choice between having acupuncture or having one of the chemicals used for putting him to sleep. It has been estimated that over half of the patients choose acupuncture because there is no sickness after the operation whereas（然而，反之） the chemical may make the patient sick for a few hours or a day.
1．Acupuncture is a kind of _______.
A. medical needles          B. medical equipment
C. medical technique        D. medical examination
2. To perform the acupuncture skillfully, one _______.
A. has to learn how to insert the needles accurately in the right place
B. should insert the needles where the pain is to be prevented
C. needs to be trained for a short period of time
D. must use fewer needles than in the past
3. According to the 3rd paragraph, we can infer _______.
A. people must insert a needle in the wrist to prevent the pain in the mouth
B. people come to realize the shortcomings of the acupuncture
C. people are convinced to use the acupuncture to cure diseases
D. people need to make deeper research into the acupuncture
4.Nowadays, more and more people prefer having acupuncture because _______.
A. acupuncture has no side effects after the operation
B. acupuncture costs them less than having chemicals
C. chemicals usually cause many more deaths
D. they want to protect the traditional Chinese medicine
5. The author of the passage tends to be ________ acupuncture.
A. strongly against      B. in favor of     C. doubtful about      D. uninterested in

Ideas about polite behavior are different from one culture to another．Some societies, such as America and Australia, for example, are mobile and very open．People here change jobs and move house quite often．As a result, they have a lot of relationships that often last only a short time, and they need to get to know people quickly．So it’s normal to have friendly conversations with people that they have just met, and you can talk about things that other cultures would regard as personal．
On the other hand there are more crowded and less mobile societies where long – term relationships are more important．A Malaysian or Mexican business person, for example, will want to get to know you very well before he or she feels happy to start business．But when you do get to know each other, the relationship becomes much deeper than it would in a mobile society．
To Americans, both Europeans and Asians seem cool and formal at first．On the other hand, as a passenger from a less mobile society puts it, it’s no fun spending several hours next to a stranger who wants to tell you all about his or her life and asks you all sorts of questions that you don’t want to answer．
Cross-cultural differences aren’t just a problem for travelers, but also for the flights that carry them．All flights want to provide the best service, but ideas about good service are different from place to place．This can be seen most clearly in the way that problems are dealt with．
Some societies have ‘universalistic’ cultures．These societies strongly respect rules, and they treat every person and situation in basically the same way．
‘Particularistic’ societies, on the other hand, also have rules, but they are less important than the society’s unwritten ideas about what is right or wrong for a particular situation or a particular person．So the normal rules are changed to fit the needs of the situation or the importance of the person．
This difference can cause problems．A traveler from a particularistic society, India, is checking in for a flight in Germany, a country which has a universalistic culture．The Indian traveler has two much luggage, but he explains that he has been away from home for a long time and the suitcases are full of presents for his family．He expects that the check – in official will understand his problem and will change the rules for him．The check – in official explains that if he was allowed to have too much luggage, it wouldn’t be fair to the other passengers．But the traveler thinks this is unfair, because the other passengers don’t have his problem．
【小题1】Often moving from one place to another makes people like Americans and Australians _____．