GUATEMALA CITY(Reuters)---- A fish that lives in mangrove swamps(红树沼泽)across the Americas can live out of water for months at a time, similar to how animals adapted(适应)to land millions of years ago, a new study shows.
The Mangrove Rivulus, a type of small killifish, lives in small pools of water in a certain type of empty nut or even old beer cans in the mangrove swamps of Belize, the United States and Brazil. When their living place dries up, they live on the land in logs(圆木), said Scott Taylor, a researcher at the Brevard Endangered Lands Program in Florida .
The fish, whose scientific name is Rivulus marmoratus, can grow as large as three inches. They group together in logs and breathe air through their skin until they can find water again.
The new scientific discovery came after a trip to Belize.
“We kicked over a log and the fish just came crowding out,” Taylor told Reuters in neighboring Guatemala by telephone. He said he will make his study on the fish known to the public in an American magazine early next year.
In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish found in Australia, Africa and South America can live out of water, but only in an inactive state. But no other known fish can be out of water as long as the Mangrove Rivulus and remain active, according to Patricia Wright, a biologist at Canada’s University of Guelph.
Further studies of the fish may tell how animals changed over time.
“These animals live in conditions similar to those that existed millions of years ago, when animals began making the transition(过渡)form water onto land, ” Wright said.
【小题1】The Mangrove Rivulus is a type of fish that ________.
| A.likes eating nuts |
| B.prefers living in dry places |
| C.is the longest living fish on earth |
| D.can stay alive for two months out of water |
| A.Patricia Wright. |
| B.Researchers in Guatemala. |
| C.Scientists from Belize. |
| D.Scott Taylor. |
| A.breathe through its skin |
| B.move freely on dry land |
| C.remain alive out of water |
| D.be as active on land as in water |
| A.It was made quite by accident. |
| B.It was based on a lab test of sea life. |
| C.It was supported by an American magazine. |
| D.It was helped by Patricia Wright. |
The small number of newborn babies, which has been caused by high prices and the changing social situation of women, is one of the most serious problems in Asia. When people talk about it, you can hear a word invented in Japan. which means Double Income Kids(小孩).
In many major Asian cities like Seoul, Singapore, and Tokyo, the cost of a ****** is extremely high. A young couple who want to buy their own house may have to pay about $3000,000 (though prices have fallen). For a flat with one bedrooms, one dining-room, a kitchen, and a bathroom, the couple will pay about $900 a month. What’s more, if they want to have a child, the child’s education is very expensive. For example, most kindergarten charges are at least $5.000 a year. In such a situation, it’s difficult to afford children.
The number of married women who want to continue working because they enjoy their jobs. However, if they want to have children, they immediately have serious problems. Though most companies allow women to leave their jobs for a short time to have a baby, they expect women with babies to give up their jobs. In short, if they want to bring up children properly, both parents have to work, but it is hard for mothers to work. Indeed, women who want to contimue working have to choose between having children or keeping their jobs.
In a word, Asian governments must take steps to improve the present situation as soon as possible.
【小题1】What is the main problem being discussed in the passage?
| A.The small number of newborn babies. |
| B.The changing social situation of women. |
| C.The high prices of houses and education. |
| D.The necessary steps of Asian government. |
| A.It is easy for a couple to afford a child in Asia. |
| B.The prices of in Asia are quite low now. |
| C.Fewer and fewer married women wan to have a job. |
| D.The word “DINKS” appeared in an Asian country. |
| A.85,000 | B.85,900 | C.$10.800 | D.$15.800 |
| A.let women stay at home and have a baby |
| B.allow one of the parents to go out to work |
| C.care for the growing needs of women for job. |
| D.the companies that permit women to leave. |
If you boss asks you to work in Moscow this year, he’d better offer you more money to do so — or even double that depending on where you live now. That’s because Moscow has just been found to be the world’s most expensive city for the second year in a row by Mercer Human Resources Consulting.
Using the cost of living in New York as a base, Mercer determined Moscow is 34.4 percent more expensive including the cost of housing, transportation, food, clothing, household goods and entertainment(娱乐).
A two-bedroom flat in Moscow now costs $4,000 a month; a CD $24.83, and an international newspaper $6.30, according to Mercer. By comparison, a fast food meal with a hamburger(汉堡包) is a steal at $4.80.
London takes the No.2 place, up from No.5 a year ago, thanks to higher cost of housing and a stronger British pound relative to the dollar. Mercer estimates(估算) London is 26 percent more expensive than New York these days. Following London closely are Seoul and Tokyo, both of which are 22 percent more expensive than New York, while No.5 Hong Kong is 19 percent more costly.
Among North American cities, New York and Los Angeles are the most expensive and are the only two listed in the top 50 of the world’s most expensive cities. But both have fallen since last year’s study — New York came in 15th, down from 10th place, while Los Angeles fell to 42nd from 29th place a year ago. San Francisco came in a distant third at No. 54, down 20 places from a year earlier.
Toronto, meanwhile, is Canada’s most expensive city but fell 35 places to take 82nd place worldwide. In Australia, Sydney is the priciest place to live in and No. 21 worldwide.
【小题1】What do the underlined words “a steal” in Paragraph 3 mean?
| A.an act of stealing | B.something delicious |
| C.something very cheap | D.an act of buying |
| A.the high cost of clothing | B.the stronger pound against the dollar |
| C.its expensive transportation | D.the high prices of fast food meals |
| A.Tokyo. | B.Hong Kong. | C.Moscow. | D.Sydney. |
| A.New York. | B.Los Angeles. | C.San Francisco. | D.Toronto. |
Far from the land of Antarctica(南极洲), a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.
For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.
Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.
The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.
The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein(蛋白质) never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
Study showed that it is an unusual kind of protein. It has many small sugar molecules(分子) held in special positions within each big protein molecule. Because of its sugar content. It is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein. Or AFGP.
【小题1】What is the text mainly about?
| A.The terrible conditions in the Antarctic. |
| B.A special fish living in freezing waters. |
| C.The ice shelf around Antarctica. |
| D.Protection of the Antarctic cod. |
| A.The seawater has a temperature of -1.88℃. |
| B.It loves to live in the ice-salt mixture. |
| C.A special protein keeps it from freezing. |
| D.Its blood has a temperature lower than -2.05℃. |
| A.A type of ice-salt mixture. | B.A newly found protein. |
| C.Fish blood. | D.Sugar molecule. |
| A.sugar | B.ice | C.blood | D.molecule |
Intellectual property (IP) is a product of the mind that has commercial value. The concept dates back to 1623 when the first patent law to protect IP sights was passed. IP rights protect the artist from having his/her creative ideas copied by another. For example, if somebody generated an idea for a novel, that idea is protected by IP rights. If someone else wishes to represent the idea or develop it further, he/ she must consult the original artists, who will normally be rewarded financially for its use. Back in the 17th century, IP rights were primarily carried out to protect newly developed manufacturing processes against stealing. But today, intellectual property rights, are also enjoyed by those who creative music, art and literature.
In recent years, IP rights have been the focus of a great deal of discussion because of a technology which looks set to weaken them altogether; the Internet. Many years ago, if you wanted a recording of a song, you would have to purchase it from a music store; if a novel, form a book store. In those days, IP rights were easily protected since it was very difficult to obtain intellectual property without paying for it. However, a lot of IP, including songs, films, books and artwork, can be downloaded today free of charge using the Internet. This practice has now taken the world by storm, dramatically affecting the way in which we view IP rights.
【小题1】According to the writer, in the beginning, If rights were mainly of use to ______.
| A.those creating music, art and literature | B.novelists |
| C.engineers and inventors | D.those not receiving financial reward for their work |
| A.It makes IP rights harder to protect. | B.It sells songs and films. |
| C.It does not affect the way we understand IP rights. | D.It prevents the production of artwork. |
| A.Intellectual property rights. | B.The Internet. |
| C.Free downloading | D.The large number of songs, films and books. |
| A.A History of IP Rights | B.Ways to Protect Your IP Rights. |
| C.The Present and the Future Of IP | D.IP Rights and Our Attitudes |
On August 26, 1999, New York City was struck by a terrible rainstorm. The rain caused the streets to 36 and the subway system almost came to a stop.
Unfortunately, this happened during the morning rush hour. Many people who were going to work were 37 to go home. Some battled to 38 a taxi or to get on a bus. Still others faced the 39 bravely, walking miles to get to work.
I 40 to be one of people on the way to work that morning. I went from subway line to subway line only to find that most 41 had stopped. After making my way 42 crowds of people, I finally found a subway line that was 43. Unfortunately, there were so many people waiting to 44 the subway that I could not even get down the stairs to the 45 . So I took the train going in the opposite direction, and then switched back to the downtown train.
Finally, after what seemed like forever, the train 46 my stop. Then I had to walk several blocks in the increasingly heavy rain. When I finally got to my office, I was 47 through, exhausted and 48 .
My co-workers and I spent most of the day drying off. When it was 5:00 pm, I was ready to go home. I was about to turn off my computer 49 I received an email from Garth, my Director:
I would like to thank all of you who made the effort and 50 went to work. It is always reassuring(令人欣慰), at times like these, when employees so clearly show their 51 to their jobs. Thank you.
Garth’s email was short, but I learned more from that 52 message than I ever did from a textbook. The email taught me that a few words of 53 can make a big difference. The rainstorm and the traffic 54 had made me tired and upset. But Garth’s words immediately 55 me and put a smile back on my face.
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