B
American researchers found females are the more talkative sex because of a special “language protein(蛋白质)” in the brain.
The study, conducted by neuroscientists (神经学家)and psychologist from the University of Maryland, concluded that women talked more because they had more of the Foxp2 protein. The research, published in the Journal of Neuroscience, found that higher levels were found among humans that were women but in rats that were males. Their findings came after it was previously claimed that ladies speak about 20,000 words a day – over 13,000 more than men. “This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals,” said Prof Margaret McCarthy, who led the study. In their study, the researchers attempted to determine what might make male rats more vocal than their female friends.
They separated four-day-old rats from their mothers and then counted the number of times they cried out in the “ultrasonic range”, the frequencies higher than humans can hear, over five minutes. While both sexes called out hundreds of cries, the males called out twice as often, they found. But when the pups were returned to their mother’s cage, she fussed over her sons first. Tests conducted on the parts of the brain known to be associated with vocalcalls showed the male pups have up to twice as much Foxp2 protein as the females. The researchers then increased the production in the brains of female pups and reduced it in males. This led to the female rats crying out more often and their mothers showing more interest to them. In contrast, males became less “talkative”.
The researchers then tested samples from ten children, aged between three and five, which showed that females had up to 30 per cent more of the Foxp2 protein than males, in a brain area key to language in humans.
“Based on our observations, we assume higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex,” said Prof McCarthy. “Our results imply Foxp2 as a component of the neurobiological basis of sex differences in vocal communication in mammals. “What can be inferred from the second paragraph？
| A．women always speak more words than men. |
| B．men and male rats have low levels of language protein. |
| C．McCarthy isn’t the first to find females more talkative |
| D．women and male rats have similar levels of Foxp2. |
What does the underlined phrase “fussed over” in the third paragraph mean?
| A．relyed on | B．related to |
| C．put pressure on | D．paid attention to |
What’s the purpose of the experiments on rats carried out by the researchers?
| A．To test which part of the brain is key to language in rats and humans. |
| B．To discover the association between Foxp2 protein and vocal communication. |
| C．To determine the reason why female rats are more talkative than male rats. |
| D．To prove the levels of Foxp2 protein in humans and rats are different. |
Which of the following can be the best title for the passage ?
| A．Why women are the talkative sex |
| B．Tests on humans and rats |
| C．Sex differences in Foxp2 protein |
| D．Foxp2 protein determines oral ability |
It is often necessary to release a fish, that is, set it free after catching, because it is too small, or you just don’t want to take it home to eat. In some cases, releasing fish is a good measure that will help keep fish variety and build their population size. The Department of Game and Inland Fisheries (DGIF) encourages fishermen who practice catch-and-release fishing to use a few simple skills when doing so. The advice provided below will help make sure that the fish you release will survive (存活) to bite again another day.
—When catching a fish, play it quickly and keep the fish in the water as much as possible.
Don’t’ use a net in landing the fish and release it quickly to prevent it from dying.
—Hold the fish gently. Do not put your fingers in its eyes. Don’t wipe the scales (鱼鳞) off the fish because it might cause it to develop a disease and reduce its chance of survival.
—Remove your hook (鱼钩) quickly. If the hook is too deep or hooked in the stomach, cut the line and leave the hook in. The hook left inside will cause no serious problem to the fish.
—Take good care of the fish by moving it gently in water. Release the fish when it begins to struggle and is able to swim.
—Do not hold fish in a bucket or some other containers and later decide to release it. If you are going to release a fish, do so right away.
With a little care and by following the suggestions given above, you can give the released fish a better chance of survival. People sometimes set a fish free after catching it because they _________
| A．don’t want it to die |
| B．hope it will grow quickly |
| C．don’t want to have it as food |
| D．want to practice their fishing skills |
Which of the following will probably make a fish ill?
| A．Taking the hook off it. |
| B．Removing its scales. |
| C．Touching its eves |
| D．Holding it in your hand. |
A proper way to release a fish is to _________.
| A．move it in water till it can swim |
| B．take the hook out of its stomach |
| C．keep it in a bucket for some time |
| D．let it struggle a little in your hand |
What is the purpose of the test?
| A．To show how to enjoy fishing. |
| B．To persuade people to fish less often. |
| C．To encourage people to set fish free. |
| D．To give advice on how to release fish. |
More than 10 years ago, it was difficult to buy a tasty pineapple (菠萝). The fruits that made it to the UK were green on the outside and, more often than not, hard with an unpleasant taste within. Then in 1966, the Del Monte Gold pineapple produced in Hawaii first hit our shelves.
The new type of pineapple looked more yellowy-gold than green. It was slightly softer on the outside and had a lot of juice inside. But the most important thing about this new type of pineapple was that it was twice as sweet as the hit-and-miss pineapples we had known. In no time, the Del Monte Gold took the market by storm, rapidly becoming the world’s best-selling pineapple variety, and delivering natural levels of sweetness in the mouth, up until then only found in tinned pineapple.
In nutrition (营养) it was all good news too. This nice tasting pineapple contained four times more vitamin C(维生素C) than the old green variety. Nutritionists said that it was not only full of vitamins, but also good against some diseases. People were understandably eager to be able to buy this wonderful fruit. The new type of pineapple was selling fast, and the Del Monte Gold pineapple rapidly became a fixture in the shopping basket of the healthy eater.
Seeing the growing market for its winning pineapple, Del Monte tried to keep market to itself. But other fruit companies developed similar pineapples. Del Monte turned to law for help, but failed. Those companies argued successfully that Del Monte’s attempts to keep the golden pineapple for itself were just a way to knock them out the market. We learn from the text that the new type at pineapple is __________.
| A．green outside and sweet inside |
| B．good-looking outside and soft inside |
| C．yellowy-gold outside and hard inside |
| D．a little soft outside and sweet inside |
Why was the new type of pineapple selling well?
| A．It was rich in nutrition and tasted nice. |
| B．It was less sweet and good for health. |
| C．It was developed by Del Monte. |
| D．It was used as medicine. |
The underlined word “fixture” in Paragraph 3 probably refers to something _________.
| A．that people enjoy eating |
| B．that is always present |
| C．that is difficult to get |
| D．that people use as a gift |
We learn from the last paragraph that Del Monte _________.
| A．slowed other companies to develop pineapples |
| B．succeeded in keeping the pineapple for itself |
| C．tried hard to control the pineapple market |
| D．planned to help the other companies |
Last week my youngest son and I visited my father at his new home in Tucson, Arizona. He moved there a few years ago, and I was eager to see his new place and meet his friends.
My earliest memories of my father are a tall, handsome, successful man devoted to his work and his family, but uncomfortable with his children. As a child I loved him. He seemed unhappy with me unless I got straight A’s and unhappy with my boyfriends if their fathers were not as “successful” as he was. Whenever I went out with him on weekends, I used to struggle to think up things to say, feeling on guard.
On the first day of my visit, we went out with one of my father’s friends for lunch at an outdoor café. We walked along that afternoon, did some shopping, ate on the street table, and laughed over my son’s funny facial expressions. Gone was my father’s critical (挑剔的) air and strict rules. Who was this person I knew as my father, who seemed so friendly and interesting to be around? What had held him back before?
The next day dad pulled out his childhood pictures and told me quite a few stories about his own childhood. Although our times together became easier over the years, I never felt closer to him at that moment. After so many years, I’m at last seeing another side of my father. And in so doing, I’m delighted with my new friend. My dad, in his new home in Arizona, is back to me from where he was. Why did the author feel bitter about her father as a young adult?
| A．He was silent most of the time. |
| B．He was too proud of himself. |
| C．He did not love his children. |
| D．He expected too much of her. |
When the author went out with her father on weekend, she would feel .
| A．nervous |
| B．sorry |
| C．tired |
| D．safe |
What does the author think of her father after her visit to Tucson?
| A．More critical. |
| B．More talkative |
| C．Gentle and friendly. |
| D．Strict and hard-working. |
The underlined words “my new friend” in the last paragraph refer to.
| A．the author’s son |
| B．the author’s father |
| C．the friend of the author’s father |
| D．the café owner |
In 1947 a group of famous people from the art world headed by an Austrian conductor decided to hold an international festival of music, dance and theatre in Edinburgh. The idea was to reunite Europe after the Second World War.
It quickly attracted famous names such as Alec Guinness, Richard Burton, Dame Margot Fonteyn and Marlene Dietrich as well as the big symphony orchestras (交响乐团). It became a fixed event every August and now attracts 400,000 people yearly.
At the same time, the “Fringe” appeared as a challenge to the official festival. Eight theatre groups turned up uninvited in 1947, in the belief that everyone should have the right to perform, and they did so in a public house disused for years.
Soon, groups of students firstly from Edinburgh University, and later from the universities of Oxford and Cambridge, Durham and Birmingham were making the journey to the Scottish capital each summer to perform theatre by little-known writers of plays in small church halls to the people of Edinburgh.
Today the “Fringe”, once less recognized, has far outgrown the festival with around 1,500 performances of theatre, music and dance on every one of the 21 days it lasts. And yet as early as 1959, with only 19 theatre groups performing, some said it was getting too big.
A paid administrator was first employed only in 1971, and today there are eight administrators working all year round and the number rises to 150 during August itself. In 2004 there were 200 places housing 1,695 shows by over 600 different groups from 50 different countries. More than 1.25 million tickets were sold.What was the purpose of Edinburgh Festival at the beginning?
| A．To bring Europe together again. |
| B．To honor heroes of World WarⅡ. |
| C．To introduce young theatre groups. |
| D．To attract great artists from Europe. |
Why did some uninvited theatre groups come to Edinburgh in 1947?
| A．They owned a public house there. |
| B．They came to take up a challenge. |
| C．They thought they were also famous. |
| D．They wanted to take part in the festival. |
Who joined the "Fringe" after it appeared?
| A．Popular writers |
| B．University students. |
| C．Artists from around the world. |
| D．Performers of music and dance. |
We may learn from the text that Edinburgh Festival______.
| A．has become a non-official event |
| B．has gone beyond an art festival |
| C．gives shows all year round |
| D．keeps growing rapidly |
Doctors are known to be terrible pilots. They don't listen because they already know it all. I was lucky: I became a pilot in 1970, almost ten years before I graduated from medical school. I didn’t realize then, but becoming a pilot makes me a better surgeon. I loved flying. As I flew bigger, faster planes, and in worse weather, I learned about crew resource management (机组资源管理)，or CRM, a new idea to make flying safer. It means that crew members should listen and speak up for a good result, regardless of positions.
I first read about CRM in 1980. Not long after that, an attending doctor and I were flying in bad weather. The controller had us turn too late to get our landing ready. The attending doctor was flying; I was safety pilot, He was so busy because of the bad turn, he had forgotten to put the landing gear (起落架）down, unusual to speak up. But I had to: Our lives were in danger. I put aside my uneasiness and said, “We need to put the landing gear down now!” That was my first real lesson in the power of CRM, and I’ve used it in the operating room ever since.
CRM requires that the pilot/surgeon encourage others to speak up. It further requires that when opinions are from the opposite, the doctor doesn't overreact, which might prevent fellow doctors from voicing opinions again. So when I'm in the operating room, I ask for ideas and help from others. Sometimes they’re not willing to speak up. But I hope that if I continue to encourage them, someday someone will keep me from "landing gear up".What does the author say about doctors in general?
| A．They like flying by themselves. |
| B．They are unwilling to take advice. |
| C．They pretend to be good pilots. |
| D．They are quick learners of CRM. |
The author deepened his understanding of the power of CRM when _______.
| A．he saved the plane by speaking up |
| B．he was in charge of a flying task |
| C．his boss landed the plane too late |
| D．his boss operated on a patient |
In the last paragraph “landing gear up” probably means
| A．following flying requirements |
| B．overreacting to different opinions |
| C．listening to what fellow doctors say |
| D．making a mistake that may cost lives |
Which of the following can be the best title for the text?
| A．CRM: A New Way to Make Flying Safe |
| B．Flying Makes Me a Better Doctor |
| C．The Making of a Good Pilot |
| D．A Pilot-Turned Doctor |