题目内容

Research universities have to keep up with the latest computer and scientific hardware ________ price.
[     ]
A．not to mention  
B．in addition
C．on account of  
D．regardless of
D
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Just five one-hundredths of an inch thick and light golden in color, the Lay's potato chip seems an unlikely weapon for global control. But its maker, Frito-Lay doesn't think so. "Potato chips are a snack food for the world , "said Salman Amin, the company's head of global marketing. Amin believes there is no corner of the world that can resist the attractions of a Frito-Lay potato chip.

Frito-Lay is the biggest snack maker in America owned by Pepsico and accounts for over half of the parent company's $ 3 billion profits every year. But the U.S. snack food market is largely saturated(饱和),and to grow, the company has to look overseas.

     Its strategy rests on two beliefs: first, a global product offers economies of scale(规模) with which local brands cannot compete. And second, consumers in the 21st century are drawn to "global" as a concept. "Global" does not mean products that are consciously regarded as American, but ones that consumers--especially young people--see as part of a modern, innovative(创新的) world in which people are linked across cultures by shared beliefs and tastes. Potato chips are an American invention, but most Chinese, for example, do not know that Frito-Lay is an American company. Instead, Riskey, the company's research and development head, would hope they associate the brand with the new world of global communications and business.

With brand concept a key factor, Riskey ordered a redesign of the Frito-Lay logo(标识). The logo, along with the company's long-held marketing image of its chips, would help make the company's global development very easy.

The managers admit that they try to change national eating habits to a food created in America, but they don't think that means economic imperialism (霸主).  "We're making products in those countries, we're adapting them to the tastes of those countries, building businesses and employing people and changing lives , "said Steve Reinemund, Pepsico's chief manager.

Amin's belief is that _________.

A．people all over the world enjoy eating their potato chips

B．the light golden color increases the attraction of their potato chips

C．they must find new ways to promote sales in their country

D．potato chips can hardly control the world market

What do we learn about Frito-Lay from Paragraph 2?

A．It gives half of its profits to its parent company every year.

B．It needs to turn to the world market for development.

C．Its products used to be popular among overseas consumers.

D．Its development has caused fierce competition in the snack market.

One of the concepts on which Frito-Lay bases its development strategy is that __________.

A．consumers worldwide today are attracted by global brands

B．products suiting Chinese consumers' needs bring more profits

C．local brands cannot compete successfully with American brands

D．products identified as American will have promising market value

Why did Riskey have the Frito-Lay logo redesigned?

A．To suit changing tastes of young consumers.

B．To compete with other American chip producers.

C．To change the company's long-held marketing image.

D．To promote the company's strategy of globalization.

Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones, U.S. reseachers 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 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.

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


The amount of time children spend in institutional care（机构式照顾）may affect how their brains develop. That’s the conclusion of a new study carried out by researchers at the University of Wisconsin, Harvard Medical School and the University of Minnesota. The study is published in Child Development in the journal’s January/ February 2010 issue.
To learn how the lack of care and material needs that institutionalized children often experience affect brain development, the researchers looked at 132 8- and 9-year-olds. Some of them were adopted into U.S. homes after spending at least a year and three quarters of their lives in institutions in Asia, Latin America, Russia and Eastern Europe, and Africa. Others were adopted by the time they were 8 months old into U.S. homes from foster care（寄养）in Asia and Latin America; most of these children had spent no time in institutional care, while some had spent a month or two in institutions prior to foster placement. On average, the internationally adopted children had been living with their families for more than 6 years. These children were compared to a group of American children raised in their birth families.
Children adopted early from foster care didn't differ from children raised in their birth families in the United States. Children adopted from institutional care performed worse than those raised in families on tests measuring visual memory and attention, learning visual information, and impulse （冲动）control. Yet these children performed at developmentally appropriate levels on tests involving sequencing and planning.
The take-home message: Children make tremendous advances in cognitive（认知的） functioning once they reach their adoptive families, but the early impact on their brains' development is difficult to change completely.
"We identified basic learning processes that are affected by early institutionalization," notes Seth Pollak, professor of psychology and pediatrics at the University of Wisconsin, who was the study's lead author. "Policies that speed the time in which children can be removed from institutionalized care so they can develop within family contexts should be implemented to decrease the likelihood of learning problems later in children's lives."
67．The passage is mainly written to___________.
A．compare two childcare systems      B．criticize the institutional childcare
C．present a new research finding          D．introduce the basic learning process
68．Children have their brain development affected in institutional care because__________.
A．they suffer form poor living conditions
B．they spend too much time learning
C．they don’t have freedom staying there
D．they are neither physically nor mentally satisfied
69．Compared with home-raised children, institutionalized children didn’t do as well in tasks like__________.
A．thinking in pictures and self-control
B．working in teams and self-expression
C．putting things in order and self-defense
D．adapting to the environment and self-panning.
70．It can be concluded form the passage that__________.
A．the United States is a good place for children’s all-round development
B．a perfect family is beneficial to children’s all-round development
C．children in institutional care can hardly achieve anything great
D．nothing has been done to help children in institutional care


Some years ago industries had more freedom than they have now，and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them; often conditions in the work place had very bad effects on the health of the workers.
Of course sometimes there were real disasters which attracted the attention of governments and which showed the need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, there were inquiries into the causes of the disasters or the problems. New safety rules were often introduced as a result of these inquiries; however, the new rules came too late to protect the people who died or who became seriously ill.
Today many governments have special departments which protect customers and workers. In the U.S., for example, there is a department which tests new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell. A third department looks at the places where people work, and then reports any companies that are breaking the laws which protect the health and safety of workers. Of course, new government departments and new laws cannot prevent every accident or illness, but they are having some good results. Our work places are safer and cleaner than before. The planes and cars which we use for travel are better. Producers are thinking more about the safety and health of the people who buy and use their products.
51. The main topic of the passage is ______.
A. conditions in the work place            B. the freedom of industries in the past
C. changes in industrial production       D. the safety and health of workers and customers
52. It can be inferred from the passage that in the past ______.
A. workers often got ill because of the poor working conditions
B. companies were free to put out any products they wanted to
C. many people were killed by dangerous products
D. industries were as careful in management as they are today
53. It is implied in the passage that ______.
A. governments and companies had different opinions about the safety of products
B. in the past no safety laws were introduced by governments
C. government officials often did not listen to scientists
D. governments paid no attention to the safety of products at all
54. From the passage, we know that some years ago safety rules ______.
A. were put forward due to scientists’ recommendations
B. came into being as a result of the workers’ demands
C. were introduced because quite a number of people were killed or seriously injured
D. were effective enough to protect workers and customers
55. The special departments protect customers and workers in many ways EXCEPT by ______.
A. testing new products                       B. controlling the sale of products
C. designing new products                   D. inspecting work places


C
Recently scientists have worked out a way to judge roughly where a person has lived using strands(缕) of hair, a technique that could help track the movements of criminal suspects or unidentified bodies .
The method depends on measuring how chemical variations in drinking water show up in people’s hair.
While U.S diet is relatively identical, water supplies vary. The differences result from weather patterns. The chemical composition of rainfall changes slightly as clouds move.
Most hydrogen and oxygen atoms in water are stable , but traces of both elements are also present as heavier isotopes (同位素) . The heaviest raid（列阵）falls first. As a result, storms that form over the Pacific deliver heavier water to California than to Utah.
Similar patterns exist throughout the U.S. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can establish a geographic timeline. Each inch of hair corresponds to about two months.
Cerling’s team collected tap water samples from 600 cities and constructed a frame of the regional differences. They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops. They were able to accurately place the hair samples in broad regions roughly corresponding to the movement of raid systems. 
“It’s not good for pinpointing (精确定位),” he said. “It’s good for ruling out many possibilities.”
64. What can we learn from the passage about the latest discovery?
A. One’s hair growth has to do with the amount of water they drink.
B. A person’s hair may reveal where they have lived.
C. Hair analysis identifies criminal suspects accurately.
D. The chemical composition of hair varies from person to person.
65. What does the underlined word “identical” in paragraph 3 probably mean?
A. similar                        B. fantastic                C. beneficial              D. healthy
66. What is the practical value of Cerling’s research?
A. It helps analyze the quality of water in different regions.
B. It helps the police determine where a crime is committed.
C. It helps the police narrow down possibilities in detective work.
D. It helps identify the drinking habits of the person under investigation.

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