“Human influenza viruses can survive and be infectious for several days when they are deposited on banknotes,” according to the latest study by Yves Thomas and his colleages in Switzerland. Scientists put different types of flu virus onto Swiss franc notes and found that they could survive from a few hours to more than a week. The results depended on the type of flu virus.
According to the study, Swiss-banknotes are mostly cotton covered by a nonporous resin(无孔树脂). Banknotes from other countries may be composed of different materials, and this could affect viral transmission. “Whether similar results would be obtained with banknotes from other countries and with different characteristics needs to be studied.” the authors wrote. In an interview with Reuters, Thomas said. “Our studies have convinced us that it is possible to catch the flu from banknotes, but the chances are very, very small and there is no cause for concern among the gneral population,” To be sure, many kinds of frequently touched surfaces could temporarily hide the flu virus. Broadly speaking, scientists consider the risk of transmission in this way to be low. Particularly if hand-washing and other hygiene measures are practiced.
Three things must happen for a flu virus to be transmitted from one person to another via money. First, a person who is infected with the flu virus must sneeze or cough onto the banknote. Next, an uninfected person would need to touch the money while the virus si still present. Finally, that person would need to put his hand in his mouth or pick his nose, says Thomas. The best defense against infection: follow public health guidelines and wash your hands frequently.
49. What does the underlined word “this” refers to in the second paragraph?
A. The time when people stay in a bank.
B. The fact that banknotes may consist of deferent materials.
C. The bank where people draw their money.
D. The country where the banknotes are in circlation.
50. From the last paragraph, we can know that an infected person should ________.
A. pay attention to his personal hygiene B. wash his hands after leaving a bank
C. be monitored at a bank D. not cough at a bank
51. What can we learn from the passage?
A. Any person who touches banknotes will become infected.
B. Different flu viruses stay on the surface of banknotes for different lengths of time.
C. The bank should not allow any infected person to enter.
D. Only banknotes in Switzerland can transmit the flu virus.
52. What is the best title for the passage?
A. Is it Dangerous to Stay in a Bank?
B. How to Avoid Being Infected with the Flu Virus?
C. Can You Catch the Flu from Handling Money?
D. Why Do People Refuse to Use Banknotes in Switzerland?
Everywhere I look outside my home I see people busy on their high-tech devices, while driving, walking, shopping, even sitting in toilets．When connected electronically, they are away from physical reality．
People have been influenced to become technology addicted．One survey reported that “addicted” was the word most commonly used by people to describe their relationship to iPad and similar devices．One study found that people had a harder time resisting the allure of social media than they did for sleep, cigarettes and alcohol．
The main goal of technology companies is to get people to spend more money and time on their products, not to actually improve our quality of life．They have successfully created a cultural disease．Consumers willingly give up their freedom, money and time to catch up on the latest information, to keep pace with their peers or to appear modern．
I see people trapped in a pathological （病态的） relationship with time-sucking technology, where they serve technology more than technology serves them．I call this technology servitude．I am referring to a loss of personal freedom and independence because of uncontrolled consumption of many kinds of devices that eat up time and money．
What is a healthy use of technology devices? That is the vital question．Who is really in charge of my life? That is what people need to ask themselves if we are to have any chance of breaking up false beliefs about their use of technology．When we can live happily without using so much technology for a day or a week, then we can regain control and personal freedom, become the master of technology and discover what there is to enjoy in life free of technology．Mae West is famous for the wisdom that “too much of a good thing is wonderful．” But it’s time to discover that it does not work for technology．
Richard Fernandez, an executive coach at Google acknowledged that “we can be swept away by our technologies．” To break the grand digital connection people must consider how life long ago could be fantastic without today’s overused technology．The underlined word “allure” in Paragraph 2 probably means ______．
| A．advantage | B．attraction |
| C．adaption | D．attempt |
From the passage, technology companies aim to ______．
| A．attract people to buy their products |
| B．provide the latest information |
| C．improve people’s quality of life |
| D．deal with cultural diseases |
It can be inferred from this passage that people ______．
| A．consider too much technology wonderful |
| B．have realized the harm of high-tech devices |
| C．can regain freedom without high-tech devices |
| D．may enjoy life better without overused technology |
What’s the author’s attitude towards the overusing of high-tech devices?
| A．Neutral． | B．Skeptical． |
| C．Disapproving． | D．Sympathetic． |
Dear David,
I’m glad you would like to share your feelings with me．It’s hardly surprising that your feelings of not being “grown up” have come on strongly at this point in your life, just before you’re about to become a father．You are asking: will I make a good father? How will I cope? Should I have brought another little person into the world? Can I provide for it? Heeelp! I think nearly every sensitive about-to-be-parent must have these occasional feelings of self-doubt and inadequacy before the birth and it would be most unusual if you didn’t share them．
It’s difficult, honestly, to feel grown-up unless you have something less grown-up to relate to．The boss with a hen-pecking wife may feel like a seven-year-old when he’s at home．But as he walks through the office door, and knows he’s going to be surrounded by staff looking to him for advice, he grows into a fully mature man．And I think it’s a mistake to imagine that we all feel, as we age, a kind of progression of states, from the baby to the adult．Most people feel, on Tuesday, about three years old, and on a Wednesday, around 80．I remember feeling very grown-up at eight, a time when I was weighed down with responsibility．These days, much older, I can, in the company of people I feel at ease with, feel like a young girl．
There’s a common remark that “all men are little boys”, but it’s not true．It’s truer that men often behave like little boys．But nearly all people, at some moments in their lives, are capable of great maturity．
Once your baby arrives, you’ll soon feel less childlike, or rather, less often．When your child tries to put its fingers into the electric plug, the adult in you will rise up to prevent it．You’ll see you have very little in common with a needy child, particularly if it’s looking to you for comfort and support．
Comfort yourself, David, with two truths．One is that your friends laugh when they talk about this subject because they, like you, feel frightened．And remember that people who haven’t grown up don’t go around talking about the fact that they don’t feel grown-up．
Hope my advice will be helpful and good luck to you and your little one．
Sincerely Yours,
Miss AdviceAccording to the passage, Miss Advice thinks David’s self-doubt is _______．
| A．valuable | B．natural | C．unusual | D．bearable |
From Paragraph 2, we can learn that people’s sense of maturity _______．
| A．will increase with age |
| B．is obviously seen at home |
| C．changes with different situations |
| D．becomes stronger with familiar people |
Miss Advice holds the opinion that _______．
| A．all men behave like little boys |
| B．people tend to laugh at the subject |
| C．men with a baby feel more grown-up |
| D．people enjoy talking about their immaturity |
Miss Advice wrote the letter to _______．
| A．offer suggestions to a future father |
| B．teach people how to grow up |
| C．encourage people to be responsible |
| D．solve problems of the less grown-up |
“I want to be just like you．You are from uptown, aren’t you?” the young man asked in the local slang with a broad smile unaware of the burning tropical sun．Selling bags of potatoes at the roadside, his extra-large T shirt and faded blue jeans were a proof to the universal influence of American pop culture in Africa．I had accepted a seat at his potato stand to take a break before concluding business in Accra that afternoon．Between busy sales serving customers stuck in traffic, he asked numerous questions about life in America, convinced that having a visa to the United States was like winning the lottery （彩票）．How could I tell him that I envied his simple life and childish innocence when I was guilty of the silent culture that has helped to create a false image of Africans living abroad?
Outwardly, I looked like the poster boy for success visiting from the United States．My white designer shirt and matching pants were straight from the shopping malls in Detroit, where I worked as an engineer．Inwardly, I was caught in a web of ambition and cultural disappointment．My clothes suggested wealthy, yet I could not afford the numerous requests for money or to make gifts of my belongings．Uncles and aunties who were prepared to mortgage （作贷款抵押） their homes to help me leave 10 years ago now expected me to finance cousins hoping to make the same move to the United States．
America had helped me achieve my ambition for furthering my education and professional experience．I had arrived with a high-school diploma, and after 10 years, I hold a graduate degree and have a relatively successful professional career．Every inch of progress, however, had been achieved through exhausting battles．My college education had been financed partly through working multiple minimum-wage jobs．I was fortunate to secure a job upon graduation, but adjusting to corporate culture made me pay another high price．Initially, I found myself putting in twice the effort just to keep up．Scared by a wave of layoffs, I went to graduate school part time because it was the only way I knew that afforded me an edge in job security．It was as though I had run 10 continuous marathons, one for each year abroad, and my body screamed for rest．In the eyes of the young potato seller, the author seemed _____．
| A．to be a successful man |
| B．to have won a lottery |
| C．to represent American culture |
| D．to know a lot about the U．S． |
At the bottom of his heart, the author feels that _____．
| A．he wants to exchange places with the young seller |
| B．he is sorry for his cousins still living in Africa |
| C．his American dream has come true |
| D．he is torn between the two cultures |
The author managed to attend a graduate school because _____．
| A．studying graduate courses helped him adapt well to the life in the company |
| B．a graduate degree was the minimum requirement for his career |
| C．a graduate degree would give him an advantage over others in the job market |
| D．he wanted to settle permanently in the U．S |
Which of the following is closest to the main idea of the passage?
| A．An immigrant was accepted by the society after ten years of struggle． |
| B．An African American returned home with fame and fortune． |
| C．An immigrant returned home with an exhausted heart． |
| D．A young African was climbing to the top of his career． |
Sometimes just when we need the power of miracles to change our beliefs， they materialize in the places we’d least expect. They can come to us as a drastic alteration in our physical reality or as a simple synchronicity in our lives. Sometimes they’re big and can’t be missed Other times they’re so subtle that if we aren’t aware， we may miss them altogether. They can come from the lips of a stranger we suddenly and mysteriously encounter at just the right instant. If we listen carefully, we’ll always hear the right words，at the right time， to dazzle us into a realization of something that we may have failed to notice only moments before.
On a cold January afternoon in 1989，I was hiking up the trail that leads to the top of Egypt’s Mt. Horeb. I’d spent the day at St. Catherine’s Monastery and wanted to get to the peak by sunset to see the valley below. As I was winding up the narrow path，I’d occasionally see other hikers who were coming down from a day on the mountain. While they would generally pass with simply a nod or a greeting in another language，there was one man that day who did neither.
I saw him coming from the last switchback on the trail that led to the backside of the mountain. As he got closer，I could see that he was dressed differently from the other hikers I’d seen. Rather than the high-tech fabrics and styles that had been the norm，this man was wearing traditional Egyptian clothing. He wore a tattered， rust-colored galabia and obviously old and thick-soled sandals that were covered in dust. What made his appearance so odd，though，was that the man didn’t even appear to be Egyptian！ He was a small-framed Asian man, had very little hair，and was wearing round，wire-rimmed glasses.
As we neared one another，I was the first to speak.“Hello，”I said，stopping on the trail for a moment to catch my breath. Not a sound came from the man as he walked closer. I thought that maybe he hadn’t heard me or the wind had carried my voice away from him in another direction. Suddenly he stopped directly in front of me on the high side of the trail， looked up from the ground， and spoke a single sentence to me in English，“Sometimes you don’t know what you have lost until you’ve lost it.”As I took in what I had just heard，he simply stepped around me and continued his descent down the trail.
That moment in my life was a small miracle. The reason is less about what the man said and more about the timing and the context. The year was 1989，and the Cold War was drawing to a close. What the man on the trail couldn’t have known is that it was during my Egyptian pilgrimage， and specifically during my hike to the top of Moses’s mountain，that I’d set the time aside to make decisions that would affect my career in the defense industry，my friends，my family，and，ultimately，my life.
I had to ask myself what the chances were of an Asian man dressed in an Egyptian galabia coming down from the top of this historic mountain just when I was walking up，stopping before me，and offering his wisdom，seemingly from out of nowhere. My answer to my own question was easy： the odds were slim to none！ In an encounter that lasted less than two minutes on a mountain halfway around the world from my home， a total stranger had brought clarity， and the hint of a warning， regarding the huge changes that I would make within a matter of days. In my way of thinking，that’s a miracle.
I suspect that we all experience small miracles in our lives every day. Sometimes we have the wisdom and the courage to recognize them for what they are. In the moments when we don’t，that’s okay as well. It seems that our miracles have a way of coming back to us again and again. And each time they do，they become a little less subtle，until we can’t possibly miss the message that they bring to our lives！
The key is that they’re everywhere and occur every day for different reasons， in response to the different needs that we may have in the moment. Our job may be less about questioning the extraordinary things that happen in our daily lives and more about accepting the gifts they bring.Why did the author make a pilgrimage to Mt. Horeb in Egypt?
| A．He was in search of a miracle in his life. |
| B．It was a holy place for a religious person to head for. |
| C．He intended to make arrangements for his life in the future. |
| D．He waited patiently in expectation of meeting a wise person. |
What does the underlined part “my own question” refer to in Paragraph 6?
| A．For what reason did the man stop before me? |
| B．Why did the Asian man go to the mountain? |
| C．What change would I make within a matter of days? |
| D．What was the probability that others told us the right words? |
Which of the following is closest in meaning to the underlined word “subtle” in Paragraph 7?
| A．Apparent. | B．Delicate. |
| C．Precise. | D．Sufficient. |
The author viewed the encounter with the Asian man as a miracle in his life in that .
| A．the Asian man’s appearance had a deciding effect on his future life |
| B．his words were in perfect response to the need he had at that moment |
| C．what the Asian man said was abundant in the philosophy of life |
| D．the Asian man impressed on him the worth of what he had possessed |
What might be the best title for the passage?
| A．Can you recognize a miracle? |
| B．Is a miracle significant to us? |
| C．When might a miracle occur? |
| D．Why do we need a miracle? |
Scientists from the United States say they have found fish and other creatures living under key waters in Antarctica. They made the announcement after completing three months of research at the Ross Ice Shelf, the world’s largest floating ice sheet.
The researchers hoped to find clues to explain the force of the melting ice and its effect on sea level rise. Reed Scherer and Ross Powell are with Northern Illinois University in DeKalb, Illinois. They just finished up their research on our southernmost continent. Money for the project came from America’s National Science Foundation.
“We chose a study site where, in the first year ,We went into the subglacial (冰川下的)lake and tried to understand the environment in there, both ecologically and in terms of the ice dynamics about how the lake operates ,and how the sediment(沉淀物) underneath the ice sheet operates, as well, because it’s the water and the sediment underneath the ice that controls how fast the ice is flowing into the ocean” says Ross Powell, who led the investigation. The team included scientists ,engineers, machinery and other supplies across the ice from the main U.S. scientific base at Mc Murdo Station to the researcher’s camp .The camp was near a subglacial lake ,where an earlier study took place,
Ross Powell says the latest study may provide evidence that can help predict the effect of climate change on rising sea levels.
“What we have found is that these are very sensitive areas to the stability of how dynamic the ice is and how fast the ice may react to increases of melting both from the ocean and the atmosphere.”
Among the new instruments built for the project was a powerful hot water drill. The researchers used the drill to dig down some 740 meters. They collected water ,sediment and other material from the grounding zone.
Working around the clock before the deep hole refroze, they sent a video camera down to the 400-square-meter undersea area.
Reed Scherer says the video images they saw in the Command Center were a total surprise.
“It’s a very mobile environment. The bottom is changing constantly. And so the things that we saw were all very mobile organisms, things that swim and some things that crawl. And obviously they are getting enough nutrition that they can thrive, Some of the little crustacean-like creatures called amphipods that we saw swam quite quickly and were quite active.”
This is the farthest south that fish have ever been seen. How did the creatures get here? What do they feed on? And what effect will the retreating ice have on them?
Ross Powell says the ice and sediment cores taken from the grounding zone can offer clues.
“We know that the ice is melting there at the moment and so by opening up the cores once they get back, we hope to be able to understand what the ice was doing in the past ,relative to what it is doing now. And because it is melting so fast or seems to be melting fast at the moment, we anticipate that there will he some differences that we’ll see in the history of the ice sheet from the sediment cores, once we open them up .”But Ross Powell says the work raises more questions than it answers.Scientists conducted the three-month research at the Ross Ice Shelf with the intention of .
| A．predicting how climate change influences rising sea levels. |
| B．finding out whether there are life forms existing deep under Antarctic ice. |
| C．proving the speed of ice flowing into the ocean is controlled by water. |
| D．discovering an explanation of the effect the melting ice has on sea level rise. |
What made the researchers surprised when they saw the video images?
| A．Researchers saw fish in the farthest south for the first time. |
| B．A video camera was able to work well under deep icy waters. |
| C．Sediment cores present differences in the history of the ice sheet. |
| D．The drill should dig down 740 meters to collect things. |
From sediment cores taken from the grounding zone, scientists will probably know.
| A．what the ice will do in the near future |
| B．the ice in the grounding zone is melting at the moment |
| C．some differences rarely exist in the history of the ice sheet |
| D．something about the creatures under icy water in Antarctic. |
What can be inferred from the passage?
| A．Scientists will conduct a follow-up study on the frozen continent. |
| B．No creatures once appeared or lived in icy water in Antarctica. |
| C．America’s National Science Foundation is in complete charge of the research. |
| D．Researchers have found how the sediment underneath the ice sheet operates. |