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A Small Event One afternoon in January 1989, Suzan Sharp, 43, and her 8-year-old son, David ,were walking hard across an icy parking lot, when Suzan’’s cane (手杖)slid on the ice . She 【51】 face fist into the mud . David 【52】 to her side . "Are you all right, Mom" 【53】 , Suzan put herself up. "I’’m okay, honey." she said. It had been nearly two years since Suzan had trouble walking. She was falling more 【54】 now. Every inch of ice was a 【55】 danger for her. " I could do something," the boy thought. David, too, was having 【56】 of his own. The boy had a speech defect. At school he 【57】 asked questions or read aloud. One day Davids teacher announced a 【58】 assignment. "Each of you is going to come up with an invention, "she said. This was for "INVENT AMERICA!", a national competition to encourage creativity in 【59】 . An idea hit David one evening. 【60】 only his mothers cane didn’t slip on ice ,he thought. "That’’s it!" David realized. "What if I fixed your cane to a nail stretched out of the bottom" he asked his mother. His mother told him," 【61】 it would scratch floors. " "It looks like a ball-point pen. You take your hand 【62】 the button and the nail returns back up." Hours later the cane was finished. David and his father, Jeff, 【63】 as Suzan used it to walk 50 feet across the 【64】 . "It works!" she said . In July 1989, David was declared national winner at the annual" INVENT AMERICA!" ceremony in Washington D.C.. As David began to make 【65】 appearances, he was forced to communicate more clearly. Today, David is nearly free of his cane which is waiting to be widely used. So the boy who once had trouble talking now hopes to start making canes for people who have trouble walking.
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Ice Cream For Dogs1. Humans not only love eating ice cream, they enjoy feeding it to their pets(宠物). Market studies show that two-thirds of all dog owners give ice cream to their dogs. Unfortunately, says William Tyznik, an expert on animal nutrition(营养)at Ohio State University, ice cream is not good for dogs. "It has milk sugar in it," he says," which dogs cannot digest very well. "2. Bothered by that knowledge but aware of the desire of dog owners to please their companions, Tyznik invented a new frozen treat for dogs that, he says, is more nutritious than ice cream—and as much fun to eat. The product, called Frosty Paws, is made of a liquid by-product (副产品) of cheese and milk with the sugar removed. Frosty Paws also contains refined soy flour, water, vegetable oil, vitamins and minerals. It took Tyznik, who has also invented a horse feed (called Tizwhiz)and another dog food (named Tizbits), three years to perfect the Frosty Paws formulas, and two attempts to commercialize it. After losing B 25, 000 trying to market the invention himself, Tyznik sold the rights to Associated Ice Cream of Westervile, Ohio, which makes the product and packages it in cups.3. Tyznik claims that Frosty Paws has been tested extensively and that "dogs love it". Of 1,400 dogs that have been offered the product, he says, 89 percent took it on the first try. Three out of four preferred it to Milk-Bone or sausages. The product, which will be available in the ice-cream section of supermarkets, comes in packs of three or four cups, costing between 6 1. 79.4. What would happen if a human should mistake Frosty Paws for real ice cream Nothing, says Tyznik. Its harmless, but frankly, he says, it wont taste very good.A. The price of Frosty PawsB. No harm to humanC. The creation of a new kind of ice cream for dogsD. Harm to humanE. Feeding ice-creams to dogsF. Attraction to dogs
AIDS AIDS is Acquired Immune Deficiency Syndrome. The human immunodeficiency virus (人类免疫缺损病毒)called HIV is believed to cause AIDS. There is no cure. People who get the disease will die. AIDS itself does not kill. However, it attacks and destroys the body’’s defense system that fights against infection. When this happens, a person has little ability to fight off many other diseases including pneumonia(肺炎), cancer and tuberculosis (结核病). A new study says the number of women in the United States with AIDS has increased sharply. The study says AIDS is increasing faster among women than among men. Eighteen percent of AIDS patients are women. This is almost 3 times the rate 10 years ago. Most women get the AIDS virus from having sexual relations with men. Pregnant women with the disease can pass it to their babies. The effect of AIDS in America is greatest in large cities. AIDS is the leading cause of death among all people in 79 cities. It is the leading cause of death among women in 15 cities. These include New York City and Miami, Florida. Doctors in the United States first noted AIDS 14 years ago in homosexual (同性恋的)men in New York and California. In the United States AIDS spread first among homosexual men. Then it appeared in people who shared needles to put illegal drugs into their blood. It also appeared in people who had received infected blood products at hospitals. The AIDS virus is spread through the exchange of infected blood or body fluids released during sexual activity. It is also spread by having sexual relations with someone who has the virus. And it is spread by sharing drug needles that have infected blood on them. AIDS has affected several famous American athletes. Two years ago, former tennis player Arthur Ashe died of the disease. At about the same time, former basketball player Magic Johnson announced that he has the AIDS virus. The most recent athlete to be affected is Gregory Louganis. Louganis won a number of gold medals in Olympic diving competition. He announced on television that he has AIDS. President Clinton met with Louganis and praised him for discussing his sickness. Mr. Clinton said it is important to educate the public. Activists have succeeded in educating Americans about AIDS and the people who have it. They also have been urging the federal government to increase efforts to find a cure for AIDS. Scientists first identified the virus that is believed to cause AIDS in 1983. Many of them then thought they could produce an anti-AIDS vaccine(痘苗). Such a medicine could be given to people to protect against the disease. However, scientists at American government agencies, universities and drug companies have failed to produce an anti-AIDS vaccine. But they are continuing effort to find better treatments for a cure. Which of the following is NOT true according to the passage
Yet with economies in free fall, managers also need up-to-date information about what is happening to their businesses, so that they can change course rapidly if necessary. Cisco, an American network-equipment giant, has invested over many years in the technology needed to generate such data. Frank Calderoni, the firm’s CFO, says that every day its senior executives can track exactly what orders are coming in from sales teams around the world, and identify emerging trends in each region and market segment. And at the end of each month, the firm can get reliable financial results within four hours of closing its books. Most firms have to wait days or even weeks for such certainty. Admittedly, Cisco’s financial results have not made happy reading recently because, in common with many other large technology companies, it has seen demand for its products decline in the downturn. In early February it announced that its fiscal second-quarter revenues of ＄9.1 billion were 7.5% lower than the same period in 2008 and that its profit had fallen by 27%, to ＄1.5 billion. In response to hard times, Cisco plans to cut ＄1billion of costs this year by, among other things, making use of its own video-conferencing and other communications technologies to reduce the amount its executives travel. It is also using these facilities to relay information from employees on the ground to its senior managers, and to get instructions from Cisco’s leaders back out to its 67,000 staff. A rapid exchange of information and instructions is especially valuable if the company wants to alter course in stormy times. If everybody in a company can rapidly grasp what they have to do and how it is changing, they are more likely to get the job done. But some firms are reluctant to share their goals with the wider world. Unilever, a big Anglo-Dutch consumer-goods group, has decided against issuing a 2009 financial forecast to investors, arguing that it is difficult to predict what is going to happen, given the dangerous state of the world economy. "We’re not just going to provide numbers for the sake of it," explains James Allison, the company’s head of investor relations. Other companies that have decided not to provide annual earnings estimates for 2009 include Costco, a big American retailer, and Union Pacific, an American railway company. Some firms, such as Intel, seem to have chosen to take things quarter by quarter. The giant chipmaker (芯片制造商) said in January that it would not issue an official forecast for the first quarter of 2009 after its fourth-quarter 2008 profit decreased by 90%. Several retail chains have also stopped providing monthly sales estimates because they cannot see what the future holds. Retailers, chipmakers and firms in many other industries may have a long wait before the economic fog finally lifts. What can we learn about Cisco from the passage
Questions 14 to 17 are based on a talk by a tourist agent on the Canyonland in Utah. You now have 20 seconds to read Questions 14 to 17. Which tour is commercially-operated
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