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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 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.
“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.
查看习题详情和答案>>In the United States 84 colleges now accept just women. Most of them were established in the 19th century; they were designed to offer women the education they could not receive anywhere else. At that time major universities and colleges accepted only men. In the past 20 years many young women have chosen to study at colleges that accept both men and women. As a result some women’s colleges decided to accept men students too. Others, however, refused to change. Now these schools are popular again
The president of Trinity College in Washington, D. C. said that by the end of the 1980s women began to recognize that studying at the same school with men did not mean women were having an equal chance to learn. The president of Smith College in Massachusetts says a women’s college permits women to choose classes and activities freely. For example, she says that in a women’s college a higher percentage of students studies mathematics than in a college with both men and women.
Educational experts say men students in the United States usually speak in class more than women students do. In a women’s college, women feel free to say what they think. Women’s schools also bring out leadership capabilities in many women. Women are represented everywhere. For example, at a women’s college every governing office is held by a woman. Recent studies reportedly show this leadership continues after college. The studies show that American women who went to women’s colleges are more likely to hold successful jobs later in life.
【小题1】Some women’s colleges decided to accept men students because_______.
| A.teaching women is more difficult than teaching men |
| B.many young women chose to study at colleges with both men and women |
| C.study with men is more challenged. |
| D.women and men can have equal chances of competition. |
| A.more and more women’s colleges are being established now |
| B.more and more women like to study in colleges with both men and women |
| C.there are more women’s colleges than colleges with both men and women in the USA |
| D.it is better for American women to study in women’s colleges |
| A.study in colleges with both men and women |
| B.study in Trinity College |
| C.learn from the president of Smith College |
| D.study in women’s colleges |
| A.to give women the education they could not receive anywhere else. |
| B.to separate women from men. |
| C.to offer women special chances for work. |
| D.to help women have more study opportunities. |
A large number of women in Western European countries wish that they were born men. The number is said as high as 60% in West Germany.
“Women often wish that they had the same chance as men have, and believe it is still men’s world,” said Dr James Holden, one of the scientists who did the study.
Anne Harper has a very good job for an international oil company. She also believes in “Women’ s Liberation(解放)”.
“I don’t wish that I were a man,” she says, “and I don’t think many women do. But I do wish that people would stop looking down upon us women. At work, for example, we often do the work that men do but get paid less. There are still a lot of jobs that are usually the best ones and open only to men. If you’re a man, you have a much better chance of leading an exciting life. How many women pilots are there ... or engineers or scientists?”
【小题1】What can we learn from the first paragraph?
| A.60% Western European women wish that they were born men. |
| B.Most women in Western European countries wish that their babies were all boys. |
| C.60% women in West Germany wish that they were born men. |
| D.60% Western European women who wish that they were born men are from West Germany. |
| A.There’re more men than women in the world |
| B.There’re more men scientists or engineers than women scientists or engineers in the world |
| C.Women cannot live without men |
| D.Women have not been given the same chance as men |
| A.be really liberated | B.live a better life than men |
| C.be well paid | D.get better jobs than men |
| A.has got a very good job |
| B.believes in “Women’s Liberation” |
| C.does the work that a man can’t do |
| D.isn’t looked down upon by anyone |
阅读下面的短文,并根据短文后的要求答题(请注意问题后的词数要求,并将答案写在二卷答题纸上)。
Paris is the capital of France. It is also one of the most famous cities in the world.
Paris is called “the City of Light”. It is also an international fashion center. What modern women are wearing in Paris will soon be worn by many women in other parts of the world. Paris is also a famous center of education. For example, the headquarters of UNESCO, United Nations Educational, Scientific, and Cultural Organization, is in Paris.
The Seine (塞纳河) divides the city into two parts. Thirty-two bridges cross this scenic river. The oldest and perhaps most well-known is the Pont Neuf, which was built in the sixteenth century. The Sorbonne, a famous university, lies on the left bank of the river. The beautiful white church Sacre Coeur lies on top of the hill called Montmartre on the right bank of the Seine.
There are in Paris, such as the famous museum, the Louvre, as well as the cathedral of Notre Dame. However, the most famous landmark in this city must be the Eiffel Tower.
Paris is named after a group of people called the Parisii. They built a small village on an island in the middle of the Seine about two thousand years ago. This island, called the lle de la Cite, is where Notre Dame is located. Today around eight million people live in the Paris area.
1. What’s the best title for this passage?
_________________________________________________________________________
2.Which word in the passage can be replaced by “chief office”?
_______________________________________________________
3. Which sentence in the passage can be replaced by the following one?
Paris got its name from a group of people called the Parisii.
________________________________________________________________________
4. Please fill in the blank in Paragraph 4 with proper words or phrases to complete the sentence.(Please answer within 10 words.)
_________________________________________________________________________
5. Translate the underlined sentence in the second paragraph into Chinese.
_________________________________________________________________________
_________________________________________________________________________
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For thousands of years, the most important two buildings in any British village have been the church and the pub. Traditionally, the church and the pub are at the heart of any village or town, where the people gather together to socialize and exchange news.
As a result, British pubs are often old and well preserved. Many of them have become historic sites. The most famous example is the pub in the city of Nottingham called “The Old Trip to Jerusalem”, which dates back to the year 1189 AD and is probably the oldest pub in England.
However, British pubs are not just for kings and queens; they welcome people from all classes and parts of society. On a cold night, the pub’s landlord or landlady can always find a warm place for you by the fire. There is always honest and hearty food and plenty of drink available at an affordable price.
That’s how things used to be. Things are beginning to change. It is said that the credit crunch(信贷紧缩) is causing 39 British pubs a week to go out of business. People do not have enough spare money to spend on beer. Recently, the UK government banned smoking in all pubs, and that may also have affected the number of customers going to pubs.
This decline is happening despite the fact that in 2005 the UK government started to allow pubs to stay open after 1l pm. Previously, with 1l pm as closing time, customers would have to drink quite quickly, meaning they sometimes got more drunk than they would if allowed to drink slowly. The British habit of drinking a lot very quickly is known as “binge drinking”, and it causes long-term health problems for people and problems with violent crime for communities.
In order to save their businesses, pubs are trying to change with the market. British pubs now offer something for everyone. A lot of pubs used to be “Working Men's Clubs”, meaning that women could not usually enter. Today, however, women can freely enter 99% of pubs without experiencing any problems. Perhaps things are changing for the better after all.
【小题1】The passage mainly tells us something about ______.
| A.the past and present of British pubs |
| B.the decline of British pubs |
| C.the long history of British pubs |
| D.the importance of British pubs |
| A.The credit crunch. |
| B.The present closing time. |
| C.The ban of smoking. |
| D.Having no spare money. |
| A.British people used to like drinking slowly |
| B.closing the pubs early will reduce social problems |
| C.binge drinking means drinking less beer |
| D.British government aims to discourage people from binge drinking |
| A.is against the admission of too many women to the pubs |
| B.holds an optimistic attitude towards the British pubs |
| C.thinks that women in the pubs will cause less social problems |
| D.thinks that British pubs should offer everything you need |