B
American researchers found females are the more talkative sex because of a special “language protein” 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（超声波的） 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 vocal calls 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 (成分)of the neurobiological basis of sex differences in vocal communication in mammals.”From the second paragraph, we can learn that ________.
| A．women always speak more words than men |
| B．men and male rats have low levels of language protein |
| C．women and male rats have similar levels of Foxp2 |
| D．McCarthy isn’t the first to find females more talkative |
The underlined phrase “fussed over” in the third paragraph probably means______.
| A．paid attention to | B．related to |
| C．put pressure on | D．counted on |
The researchers carried out the experiments on rats in order to _______.
| A．test which part of the brain is key to language in rats and humans |
| B．prove the levels of Foxp2 protein in humans and rats are different |
| C．determine the reason why female rats are more talkative than male rats |
| D．discover the association between Foxp2 protein and vocal communication |
Which of the following can be the best title for the passage?
| A．Tests on humans and rats |
| B．Why women are the talkative sex |
| C．Sex differences in Foxp2 protein |
| D．Foxp2 protein determines oral ability |
Farming is moving indoors, where the sun never shines, where rainfall is irrelevant(不相干的)and where the climate is always right. The perfect crop field could be inside a windowless building with controlled light, temperature, wetness, air quality and nutrition. It could be in a New York high-rise or a sprawling complex (综合楼) in the Saudi desert. It may be an answer to the world’s food problems.
The world is already having trouble feeding itself. Half the people on Earth live in cities, and nearly half of those--about 3 billion--are hungry or ill-fed. Food prices, currently increasing, are buffeted by dryness, floods and the cost of energy required to plant, harvest and transport. And prices will only get more unstable. Climate change makes long-term crop planning uncertain. Farmers in many parts of the world are already using water available to the last drop. And the world is getting more crowded: by mid-century, the global population will grow from 6. 8 billion to 9 billion.
To feed so many people may require expanding farmland at the expense of forests and wilderness, or finding ways to completely increase crop output.
Gertjan Meeuws has taken the concept of a greenhouse a step further, growing vegetables and house plants in enclosed(封闭的) and regulated environments. In their research station, water flows into the pans when needed, and the temperature is kept constant. Lights go on and off, creating similar day and night, but according to the rhythm of the plant.
A building of 100 square meters and 14 layers(层) of plants could provide a daily diet of 200 grams of fresh fruit and vegetables to the entire population of Den Bosch, about 140, 000 people. Their idea is not to grow foods that require much space, like corn or potatoes.
Here sunlight is not only unnecessary but can be harmful. Plants need only specific wavelengths of light to grow. Their growth rate is three times faster than under greenhouse conditions. They use about 90 percent less water than outdoors agriculture. And city farming means producing food near the consumer, and there’s no need to transport it long distances.What does Paragraph 2 mainly tell us?
| A．The climate is worse and worse. |
| B．The city people live a hard life. |
| C．The world has difficulty feeding its people. |
| D．The world’s population is increasing fast. |
The underlined word “buffeted” in Paragraph 2 means“”.
| A．badly affected | B．prevented |
| C．demanded | D．well achieved |
It can be inferred from the text that Gertjan Meeuws’s farming.
| A．helps save sea water a lot |
| B．suits different conditions |
| C．is completely different from greenhouse agriculture |
| D．suits the production of corn |
What is the text mainly about?
| A．Development of indoor farming. |
| B．Great Revolution in farming. |
| C．Advantages of indoor farming. |
| D．Sunless, rainless indoor farming. |
The dirty, homeless man sat on the pavement, staring at the stones. He thought back more than twenty years to when he was a boy living in a small red brick house on this very street. He recalled the flower garden, the swing his dad made, and the bike he had saved up for months to buy.
The man shrugged impatiently, for the brightness of those pictures hurt him, and his memory traveled on another ten years. He had a job by then, plenty of friends and started to come home less. He did not really want to remember those years, nor the day when, because of debts, he had gone home planning to ask for money. He felt embarrassed, but he knew exactly where his dad kept the money. When his parents stepped out of the room, he took what he wanted and left.
That was the last time he had seen them. Ashamed, he went abroad, and his parents knew nothing about the years of wandering or time in prison. But locked in his cell he often thought of home. Once free, he would love to see his parents again, if they were still alive, and still wanted to see him.
When his prison time was up, he found a job, but couldn’t settle. Something was drawing him home. He did not want to arrive penniless, so he hitchhiked most of the long journey back. But less than a mile from his destination he started to feel sick with doubt. Could they ever accept this man who had so bitterly disappointed them?
He spent most of that day sitting under a tree. That evening he posted a letter which, although short, had taken him hours to write. It ended with:
I know it is unreasonable of me to suppose you want to see me ... so it’s up to you. I’ll come early Thursday morning. If you want me home, hang a white handkerchief in the window of my old bedroom. If it’s there, I’ll come in; if not, I’ll wave good-bye and go.
And now it was Thursday morning and he was sitting on the pavement at the end of the street. Finally he got up and walked slowly toward the old house. He drew a long breath and looked.
His parents were taking no risks. ________________________________________
The man threw his head back, gave a cry of relief and ran straight through the open front door.Why did the man shrug impatiently (paragraph 2) while he was thinking of his childhood?
| A．The thoughts made him angry. |
| B．He felt he had wasted time. |
| C．He was anxious to go home. |
| D．The sweet memory caused him much pain. |
Why did it take him hours to write the letter?
| A．He doubted if his parents still lived in that house. |
| B．He had much news to tell his parents. |
| C．He felt ashamed to ask for forgiveness. |
| D．He was longing to return home and felt excited. |
Which of the following best fits into paragraph 8?
| A．Every inch of the house was covered in white. Sheets, pillowcases and table clothes had been placed on every window and door, making it look like a snow house. |
| B．The house before him was just as he remembered: the red bricks, the brown door and nothing else. |
| C．A colorful blanket was over the front door. On it, in large letters, was written, “Welcome home, son”. |
| D．A police car was parked in the drive way, and two officers stood at the front door. |
The best title of the passage is _______.
| A．Sweet Memory | B．White Handkerchief |
| C．Abandoned(被放弃的) Son | D．Leaving Home |
Opening week specials at Munchies Food Hall
At the corner of Green and Brown Streets in the city
Monday 7th of January until Sunday, 13th of January, 2014
Feast until you’re full!
Come down to Munchies this week to enjoy the special dishes on offer at all of our food outlets. Order from the following:
·Succulent chicken rice ·Spicy satay beef
·Delicious noodle dishes ·Plump park chops
·Seafood specialties ·Crunchy vegetables
·Sweet tropical fruit
Halal food is available at the stall Malay Food Heaven
Win Prizes and Gifts!
·Spend $ 20.00 or more and win instant prizes from our lucky draw box.
·Collect a free party balloon and whistle for each young diner.
·Enjoy a free meal if you are the first customer of the day at any of our stalls.
·Win a holiday to Western Australia. A free raffle ticket is given with every receipt. Just fill in your information and place your entry in the box provided.
Winner to be announced in The Straits Times on the 15th of January.
Join in the Fun!
Between 7:00 pm and 8:00 pm each evening until the 10th of January, your favorite Channel 3 television actors and singers will entertain you:
·May Lee ·Jackie Chen
·Kim Yap ·Kamal
Autograph sessions will follow each performance! And who will be our extra special mystery star? Come down on Saturday at noon to find out.The prices at Munchies are__________.
| A．lower than usual |
| B．bargain prices for the opening |
| C．lower for two people |
| D．lower if you spend $ 21.00 |
Every receipt comes with a _________.
| A．free raffle ticket | B．lucky draw coupon |
| C．free meal | D．balloon and whistle |
I will find out who has won the trip to Western Australia when I _________.
| A．watch Channel 3 television |
| B．come down to Munchies at noon |
| C．read The Straits Times on the 15th of January |
| D．attend the lucky draw at Munchies Food Hall |
It seems that great artists and scientists often suffer from mental problems. Both Einstein and Dickens had mental illness. Now scientists have started to look at whether mental illness and genius are linked(联系).
Dr. Adele Juda studied 5,000 creative people in Germany. She found there were more people with mental illness in this group than in the general population. Poets had the highest rate(比例) of mental illness, followed by musicians, with lower numbers for painters and architects.
Other scientists did research which also showed a strong link between mental problems and creativity. But, it did nothing to explain it.
Dr. Ruth Richards of Harvard University made a breakthrough. Instead of studying creative people, she took a group of psychiatric(精神病的) patients and tested them for creativity. The patients got much higher scores than a normal group.
Also, the patients’ close relatives were much more creative than the patients and a normal group. This suggests that the key to the link between creativity and mental illness is in our genes(基因).
But this is a problem. According to Darwinism, harmful genes should be removed. Some scientists believe that evolution(进化) has created a balance, where the madness of a few people leads to the development of the whole human race.
Geniuses may be mad, bad or just difficult to understand, but their discoveries have improved the world we live in. It seems that a little creative madness is good for us all.According to Dr. Adele Juda, which of the following group has the lowest rate of mental illness?
| A．Painters. | B．Musicians. |
| C．Poets. | D．Bus drivers. |
The underlined phrase “made a breakthrough” in the fourth paragraph means ________.
| A．discover or find something new and important |
| B．make a way through using force |
| C．(of the sun or moon) appear from behind (clouds) |
| D．suddenly change (from a slower to a faster pace) |
Which of the following statements is NOT true?
| A．Among the 5,000 creative people in Germany, more people suffer from mental diseases than the general population. |
| B．There is a strong link between mental problems and creativity. |
| C．Psychiatric patients make greater contributions than common people. |
| D．The key to the link between creativity and mental illness is in our genes. |
What is the writer’s attitude toward madness?
| A．Madness is harmful to the whole society. |
| B．A little creative madness is good for us all. |
| C．All the talented people are mad. |
| D．Only the people with mental illness have more creativity. |
What is the nature of the scientific attitude, the attitude of the man or woman who studies and applies physics, biology, chemistry, geology, engineering, medicine or any other science?
We all know that science plays an important role in the societies in which we live. Many people believe, however, that our progress depends on two different aspects of science. The first of these is the application of the machines, products and systems of applied knowledge that scientists and technologists develop. Through technology, science improves the structure of society and helps man to gain increasing control over his environment.
The second aspect is the application by all members of society of the special methods of thought and action that scientists use in their work.
What are these special methods of thinking and acting? First of all, it seems that a successful scientist is full of curiosity-----he wants to find out how and why the universe works. He usually directs his attention towards problems which he notices have no satisfactory explanation, and his curiosity makes him look for underlying relationships even if the data available seem to be unconnected. Moreover, he thinks he can improve the existing conditions and enjoys trying to solve the problems which this involves.
He is a good observer, accurate, patient and objective and applies logical thought to the observations he makes. He utilizes the facts he observes to the fullest extent. For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum(光谱).
He is skeptical ------ he does not accept statements which are not based on the most complete evidence available------and therefore rejects authority as the sole basis for truth. Scientists always check statements and make experiments carefully and objectively to verify them.
Furthermore, he is not only critical of the work of others, but also of his own, since he knows that man is the least reliable of scientific instruments and that a number of factors tend to disturb objective investigation.
Lastly, he is highly imaginative since he often has to look for relationships in data which are not only complex but also frequently incomplete. Furthermore, he needs imagination if he wants to make hypotheses of how processes work and how events take place.
These seem to be some of the ways in which a successful scientist or technologist thinks and acts.Many people believe that science helps society to progress through__________.
| A．applied knowledge. |
| B．more than one aspect. |
| C．technology only. |
| D．the use of machines. |
According to this passage, a successful scientist would not _______.
| A．easily believe in unchecked statements. |
| B．easily criticize others’ research work. |
| C．always use his imagination in work. |
| D．always use evidence from observation. |
What does the passage mainly discuss?
| A．Application of technology. |
| B．Progress in modern society. |
| C．Scientists’ ways of thinking and acting. |
| D．How to become a successful scientist. |