题目内容
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Whitehead's scientists have succeeded in ______.
A．developing malignant cells in human bodies
B．making normal human cells cancerous
C．controlling the change of human cells
D．changing the genes of cancer cells
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In John Whitehead's opinion, which statement is true？
A．Face recognition technology may interfere with people's privacy.
B．Face recognition technology may enhance the country's constant surveillance.
C．Face recognition technology can be used in the same way wiretaps are used.
D．Face recognition technology can be used after its threat has been removed.
听力原文： Stay tuned for our interview with Kim Whitehead, founder of the Whitehead Company. The Whitehead Company has gained an excellent reputation for having one of the best work environments in the industry. Not only is the facility heated and cooled using electricity collected from solar panels but the workers are able to breathe clean air thanks to state-of-the-art air purification systems. One of the many benefits from this environmentally friendly workplace is that workers are healthier and require less sick days. In turn, the facility is much more productive at manufacturing. Ms. Whitehead will be discussing how any company can become a healthier place to work. Our phone lines are open if you'd like to call in with questions for tonight's guest.
What does the speaker say about the Whitehead company？
A．It is the most profitable in the industry.
B．It has a good public image.
C．It is environmentally friendly.
D．If offers the most sick days of any company.
According to a report in the current issue of Nature, a team of scientists based at M. I .T.'s Whitehead Institute for Biomedical Research has finally managed to make human ceils malignant -a feat they accomplished with two different cell types by inserting just three altered genes into their DNA. While these manipulations were done only in lab dishes and won't lead to any immediate treatment, they appear to be a crucial step in understanding the disease. This is a "landmark paper," wrote Jonathan Weitzman and Moshe Yaniv of the Pasteur Institute in Paris, in an accompanying commentary.
The dramatic new result traces back to a breakthrough in 1983, when the Whitehead's Robert Weinberg and colleagues showed that mouse cells would become cancerous when subjected to two altered genes. But when they tried such alterations on human cells, they didn't work. Since then, scientists have learned that mouse cells differ from human cells in an important respect: they have higher levels of an enzyme called telomerase. That enzyme keeps caplike structures called telomeres on the ends of chromosomes from getting shorter with each round of cell division. Such shortening is part of a cell's aging process, and since cancer cells keep dividing forever, the Whitehead group reasoned that making human cells more mouselike might also make them cancerous.
The strategy worked. The scientists took connective-tissue and kidney cells and introduce three altered genes—one that makes cells divide rapidly; another that disables two substances meant to rein in excessive division; and a third that promotes the production of telomerase, which made the cells essentially immortal. They'd created a tumor in a test tube. "Some people believed that telomerase wasn't that important," says the Whitehead's William Hahn, the study's lead author. "This allows us to say with some certainty that it is."
The problem that has been annoying cancer researchers for years is the difficulty in telling ______.
A．how cancer ceils are formed
B．why cancer cells never stop dividing
C．why normal cells can turn into cancer cells
D．how different normal cells are from cancer cells
Who is Dr. Wynnie Chan？
A．A researcher for the Food Standards Agency.
B．A nutrition scientist for the British Nutrition Foundation.
C．A cancer specialist at the British Cancer Foundation.
D．A government official for the Food Standards Agency.
Look at the article about Coca Cola and the questions below.
For each question mark one letter A, B, C, D on your Answer Sheet, for the answer you choose.
A Brief History of Coke
Nowadays, Coca-Cola's trademark is well known around the world and its products average a staggering 400 million servings per day in more than 155 countries. According to legend, it began in a three-legged kettle in the back yard of Atlanta pharmacist Dr. John Styth Permberton who carried a jug of his concoction down the street to Jacob's Pharmacyy where it was sold at the soda fountain for 5 cents a glass. Frank Robinson, Pemberton's partner and bookkeeper thought two " C" s would look good in advertising and wrote " Coca-Cola" in the flowering script. so famous today.
It is significant that Permberton spent almost twice as much money on advertising during the first years of operation as he made in profits, for the growth of Coke's popularity is as much due to the advertising and marketing strategy as it is to the quality of its product. By continually monitoring changes in consumer attitudes and behaviour, the Coca-Cola Co. has become a widely recognized leader in advertising.
Pemberton could not foresee the greatest future awaiting his soft drink and sold out. Asa Griggs Candler bought the business and organized the Coca-Cola Co. into a Georgia corporation. In 1893, he registered Coca-Cola as a trademark.
Under Candler's leadership, the company began to grow quickly. In order to instigate a demand for the product, he spent heavily on advertising. Signs were put up from coast and appeared on calendars, serving trays and other merchandising items, urging people to drink Coke. Candler's campaign paid off.
Candler was a creative talent at advertising, but showed little imagination in understanding Coke's marketing potential. In 1899, he sold the right to bottle Coke throughout most of the United State for $ 1, which he never bothered to collect. Candler saw Coke primarily as a soda-fountain drink. But two far-sighted businessmen from Chattanooga, Tennessee, Benjamin Franklin Thomas and Joseph Brown Whitehead, understood the potential, and, for the unpaid dollar, bought a franchise that became worth millions. Their agreement with Candler began the franchising bottling system that still remains the foundation of the Coca-Cola Co.'s soft drink operations. Thomas and Whitehead sold the rights to bottle Coke to franchisers in every part of the country in return for the bottler's agreement to invest in the necessary resources and effort to make the franchise a success. During the following decade, 179 bottling plants went into operation.
In the early 20th century, Coke blazed the advertising trail, developing innovative concepts that became accepted practices in the filed. One of the most effective was the distribution and redemption of complimentary tickets, entitling the holder to a glass of free Coke at the soda fountain of a dispenser.
The trademark Coca-Cola was originally coined by______.
A．Pemberton
B．a bookkeeper working for Pemberton
C．Frank Robinson
D．Asa Griggs Candler
What can we learn from Paragraph 2？
A．Socrates can be regarded as the first social scientist in the Western world.
B．The universities in Italy have no buildings.
C．Socrates created the "Socratic method".
D．Greece is not as civilized as Italy.
What will Ms. Whitehead discuss？
A．How to reduce electricity usage
B．How to increase productivity
C．How to have a healthy workplace
D．How to use health benefits
According to the passage, the Whitehead research has taken a big step in ______.
A．understanding cancer
B．curing cancer disease
C．eliminating cancer
D．preventing cancer
What is Alvin？
A．A research institute.
B．A transporting vehicle.
C．A submersible.
D．A scientist.
A.5
B.6
C.7
D.8
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