Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations (改变) to the brain.”How do scientists know “Motherhood may make women smarter”?
| A．Some researchers have told them. |
| B．Many women say so. |
| C．They know it by experimenting on rats. |
| D．They know it through their own experience. |
What does the phrase “litters of pups” mean in the second paragraph?
| A．Baby rats. | B．Animals. |
| C．Old rats. | D．Grown-up rats. |
What can protect the brain of a woman according to the passage?
| A．Estrogen. | B．The hormones of pregnancy. |
| C．More exercise. | D．Taking care of children. |
Which title is the best for this passage?
| A．Do You Want to Be Smarter? |
| B．Motherhood Makes Women Smarter |
| C．Mysterious Hormones |
| D．An Important Study |
On Christmas morning, Linda wakes up, and tries to imagine the wide-eyed surprise of children in another household as they unwrap the presents she carefully chose for them. Linda has never met the children, but that’s all part of the joy of giving as secret Santas, she says.
"It's an amazing feeling to buy gifts on an anonymous (匿名的) basis," says Linda.
"It brings a whole new meaning to the holidays."
Linda and Tony are an American couple living in Toronto, Canada, and Linda did charitable work as a member of the American Women's Club of Toronto. As the name suggests, members are U.S. citizens living in Toronto, who join together for fellowship and community service.
To find her "adopted" family, Linda goes to the local schools and requests a wish list for a family that's struggling to survive. Last year she helped a single mother with three children. The mother works as a cleaning lady in a nursing home.
"The list is always heartbreaking. They have an opportunity to ask for anything and do just the opposite, asking for basic clothes or simple toys," she says. "We always buy the kids a new winter coat, hats, and gloves." She also buys gifts for the parents.
Last year Linda asked the mother for a second wish list--one that didn't include the basics. "Every child should have a Christmas that sticks with them for a lifetime." She purchased iPods for the two older children and a video game system for the youngest."I have learned a very valuable lesson in all of this," says Linda. "Pay attention to what's going on in your own backyard--no matter where you live."
The joy of giving as secret Santas is much sweeter when the gift is anonymous.What reaction does Linda imagine the children will have?
(No more than 5 words) (2 marks)
Why did Linda join the American Women's Club of Toronto?
(No more than 10 words) (2 marks)
Why did Linda ask for a second wish list?
(No more than 15 words) (3 marks)
What kind of people does "secret Santas" in the passage refer to?
(No more than 12 words) (3 marks)
People from East Asia tend to have more difficulty than those from Europe in distinguishing facial expressions--and a new report published online in Current Biology explains why.
Rachael Jack, University of Glasgow researcher, said that rather than scanning evenly(均匀的) across a face as Westerners do, Easterners fix their attention on the eyes.
"We show that Easterners and Westerners look at different face features to read facial expressions," Jack said. "Westerners look at the eyes and the mouth in equal measure, whereas Easterners favor the eyes and neglect (忽略) the mouth."
According to Jack and her colleagues, the discovery shows that human communication of emotion is more complex than previously believed. As a result, facial expressions that had been considered universally recognizable cannot be used to reliably convey emotion in cross-cultural situations.
The researchers studied cultural differences in the recognition of facial expressions by recording the eye movements of 13 Western Caucasian and 13 East Asian people while they observed pictures of. expressive faces and put them into categories: happy, sad, surprised, fearful, disgusted, angry, or neutral. They compared how accurately participants read those facial expressions using their particular eye movement strategies.
It turned out that Easterners focused much greater attention on the eyes and made significantly more errors than did Westerners. "The cultural difference in eye movements that they show is probably a reflection of cultural difference in facial expressions," Jack said. "Our data suggest that whereas Westerners use the whole face to convey emotion, Easterners use the eyes more and mouth less."
In short, the data show that facial expressions are not universal signals of human emotion. From here on, examining how cultural factors have diversified these basic social skills will help our understanding of human emotion. Otherwise, when it comes to communicating emotions across cultures, Easterners and Westerners will find themselves lost in translation. The discovery shows that Westerners __
| A．pay equal attention to the eyes and the mouth |
| B．consider facial expressions universally reliable |
| C．observe the eyes and the mouth in different ways |
| D．have more difficulty in recognizing facial expressions |
What were the people asked to do in the study?
| A．To make a face at each other. | B．To get their faces impressive. |
| C．To classify some face pictures. | D．To observe the researchers' faces. |
What does the underlined word "they" in Paragraph 6 refer to?
| A．The participants in the study. | B．The researchers of the study. |
| C．The errors made during the study. | D．The data collected from the study. |
In comparison with Westerners, Easterners are likely to __
| A．do translation more successfully | B．study the mouth more frequently |
| C．examine the eyes more attentively | D．read facial expressions more correctly |
What can be the best title for the passage?
| A．The Eye as the Window to the Soul |
| B．Cultural Differences in Reading Emotions |
| C．Effective Methods to Develop Social Skills |
| D．How to Increase Cross-cultural Understanding |
When Mary Moore began her high school in 1951, her mother told her, "Be sure and take a typing course so when this show business thing doesn't work out, you'll have something to rely on." Mary responded in typical teenage fashion. From that moment on, "the very last thing I ever thought about doing was taking a typing course," she recalls.
The show business thing worked out, of course. In her career, Mary won many awards. Only recently, when she began to write Growing Up Again, did she regret ignoring her mom," I don't know how to use a computer," she admits.
Unlike her 1995 autobiography, After All, her second book is less about life as an award-winning actress and more about living with diabetes (糖尿病). All the money from the book is intended for the Juvenile Diabetes Research Foundation (JDRF), an organization she serves as international chairman. "I felt there was a need for a book like this," she says. "I didn't want to lecture, but I wanted other diabetics to know that things get better when we're self-controlled and do our part in managing the disease."
But she hasn't always practiced what she teaches. In her book, she describes that awful day, almost 40 years ago, when she received two pieces of life-changing news. First, she had lost the baby she was carrying, and second, tests showed that she had diabetes. In a childlike act, she left the hospital and treated herself to a box of doughnuts (甜甜圈). Years would pass before she realized she had to grow up--again---and take control of her diabetes, not let it control her. Only then did she kick her three-pack-a-day cigarette habit, overcome her addiction to alcohol, and begin to follow a balanced diet.
Although her disease has affected her eyesight and forced her to the sidelines of the dance floor, she refuses to fall into self-pity. "Everybody on earth can ask, 'why me?' about something or other," she insists. "It doesn't do any good. No one is immune (免疫的) to heartache, pain, and disappointments. Sometimes we can make things better by helping others. I've come to realize the importance of that as I've grown up this second time. I want to speak out and be as helpful as I can be."Why did Mary feel regretful?
| A．She didn't achieve her ambition. | B．She didn't take care of her mother. |
| C．She didn't complete her high school. | D．She didn't follow her mother's advice. |
We can know that before 1995 Mary 。
| A．had two books published | B．received many career awards |
| C．knew how to use a computer | D．supported the JDRF by writing |
Mary's second book Growing Up Again is mainly about her ________.
| A．living with diabetes | B．successful show business |
| C．service for an organization | D．remembrance of her mother |
When Mary received the life-changing news, she __.
| A．lost control of herself | B．began a balanced diet |
| C．tired to get a treatment | D．behaved in an adult way |
What can we know from the last paragraph?
| A．Mary feels pity for herself. |
| B．Mary has recovered from her disease. |
| C．Mary wants to help others as much as possible. |
| D．Mary determines to go back to the dance floor. |
L1PITOR
| ABOUT LIPITOR Lipitor is a prescription medicine．Along with diet and exercise，it lowers “bad，’ cholesterol(胆固醇)in your blood．It can also raise “good'’ cholesterol· Lipitor can lower the risk of heart attack in patients with several common risk factors， including family history of early heart disease，high blood pressure，age and smoking· |
| WHO IS LIPITOR FOR? Who can take LIPITOR： ．People who cannot lower their cholesterol enough with diet and exercise ·Adults and children over l0 Who should NOT take LIPITOR： ．Women who are pregnant，may be pregnant，or may become pregnant. Lipitor may harm your unborn baby． ．women who are breast-feeding．Lipitor can pass into your breast milk and may harm your baby． · People with liver(肝脏)problems |
| POSSIBLE SIDE EFFECTS OF LIPITOR Serious side effects in a small number of people： ．Muscle(肌肉)problems that can lead to kidney(肾脏)problems，including kidney failure ．Liver problems．Your doctor may do blood tests to check your liver before you start Lipitor and while you are taking it． Call your doctor right away if you have： ．Unexplained muscle pain or weakness，especially if you have a fever or feel very tired ．Swelling of the face，lips，tongue，and／or throat that may cause difficulty in breathing or swallowing · Stomach pain Some common side effects of LIPITOR are： · Muscle pain · Upset stomach · Changes in some blood tests |
| HOW TO TAKE LIPITOR DO： · Take Lipitor as prescribed by your doctor． · Try to eat heart-healthy foods while you take Lipitor． · Take Lipitor at any time of day, with or without food． · If you miss a dose(一剂)，take it as soon as you remember．But if it has been more than 12 hours since your missed dose，wait．Take the next dose at your regular time． Don’t： · Do not change or stop your dose before talking to your doctor． · Do not stal-t new medicines before talking to your doctor． |
What is a major function of Lipitor?
| A．To help quit smoking. | B．To control blood pressure. |
| C．To improve unhealthy diet. | D．To lower "bad" cholesterol. |
Taking Lipitor is helpful for .
| A．breast-feeding women | B．women who are pregnant |
| C．adults having heart disease | D．teenagers with liver problems |
If it has been over 12 hours since you missed a dose, you should .
| A．change the amount of your next dose |
| B．eat more when taking your next dose |
| C．have a dose as soon as you remember |
| D．take the next dose at your regular time |
Which of the following is a common side effect of taking Lipitor?
| A．Face swelling. | B．Upset stomach |
| C．Kidney failure. | D．Muscle weakness. |
What is the main purpose of the passage?
| A．To teach patients ways for quick recovery. |
| B．To present a report on a scientific research. |
| C．To show the importance of a good lifestyle. |
| D．To give information about a kind of medicine |
Google, the Internet search and mapping company, has developed a car that can steer without a driver.
Sometimes the reality is stranger than science fiction: Google is road-testing cars that steer, stop and start without a human driver. The goal is to “help prevent traffic accidents, free up people’s time and reduce carbon emissions.” says Sebastian Thrun, who is the project leader for the driverless car, or Carbot.
By developing the car and the software that drives it, Google wants to change how people get from place to p1ace. Eric Schmidt, one of the company’s top officials, said, “Your car should drive itself. It just makes sense.”
So far, the driverless autos have gone about 140,000 miles on California roads without people taking over the driving. Many of the roads are very busy or full of curves that challenge human drivers. The autos’ software makes it possible to know speed limits, traffic patterns and road maps. The vehicles use radar, lasers and video cameras to find other cars and avoid people crossing streets.
There has only been one accident during the testing. And in that case, the Carbot was hit from behind by a human driver when Goog1e’s car was stopped at a red light. Engineers say the driverless cars are safer than autos with people behind the wheel because the computers react much more quickly than humans.
The Carbot is still in very early testing stages. Experts agree that it will be years before you will be able to buy one. But it is likely that one day you will be sitting in the driver’s seat of a driverless car. When the auto was first invented it was called a “horseless carriage”. Now it seems that it is time for the “driverless carriage” to be part of our 1ives.What’s the main idea of the passage?
| A．An auto revolution is on its way. |
| B．Google has developed a driverless car. |
| C．The Carbot has passed its early testing stages. |
| D．Science fiction has turned into reality. |
The driverless car is safer than an auto with people because _______.
| A．it uses radar, lasers and video cameras |
| B．it knows speed limits, traffic patterns and road maps |
| C．the computer has a better sense of direction than drivers |
| D．the software responds to emergencies faster than a human driver |
The advantage of the Carbot is that _______.
| A．it can drive all by itself |
| B．it can avoid any traffic accident |
| C．it doesn’t pollute the environment |
| D．it is the most fashionable car nowadays |
70. The author’s attitude towards the Carbot is _______.
| A．unfriendly | B．desperate | C．critical | D．optimistic |
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