(Question)
Too many cars have created a lot of serious problems in our world. Besides congestion , accidents and fast fuel consumption , cars are responsible for a good part of air pollution in big cities. All the time, they are pumping huge amounts of waste gases into the atmosphere. These gases are very harmful, causing disease and even death. Last winter, car fumes  formed heavy smog over Beijing, making the sky gloomy for weeks and deteriorating people's health. One possible solution is to design and develop clean cars and clean fuels. In Tsinghua University, campus buses are driven by electricity. In Beijing some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol. But it may take decades for the new models of clean cars to completely replace the traditional ones. Another solution is to develop modern public transportation systems and restrict  the use of private cars. If the price of petrol rises constantly and the public vehicles  are efficient and convenient enough, most people will not use private cars. And the total number of cars in big cities will reduce greatly. On the whole, the elimination  of air pollution needs the co-efforts from the government, the public and the environments. This problem will be solved only with the help of science and technology. Which of the following is TRUE according to the passage? A) New models of clean cars will soon replace the traditional cars B) Public transportation should replace all the private cars C) In some university, electricity is used in school buses D) It is only the government's efforts that can help solve air pollution caused by cars
(Answer)
C


(Question)
Raymond Schneider politely made his way through crowds of customers as he made for the candy bins at Dylan's Candy Bar in Manhattan. Since he was out of employment, Mr. Schneider, a 33-year-old designer, says he has become a person who always buys a lot of sweets every time he shops for groceries. "Sugar is comforting," he said. "There's nothing more stressful than growing financial insecurity   everywhere." The recession   seems to have a sweet tooth. As unemployment has risen, Americans, particularly adults, have been consuming   growing amounts of candy. Theories vary on exactly why. For many, sugar lifts spirits dragged low by the economy. For others, candy also reminds them of better times. And not importantly, it is  ly cheap.   At Candyality, a store in Chicago, business has jumped by nearly 80 percent and the owner, Terese McDonald, said she was struggling to keep up with the demand for Bit-O-Honeys, and Sour Balls.  Many big candy makers are also reporting rising sales and big profits  .  "It's not surprising." said Peter Liebhold, chairman of the Smithsonian Institution's work and industry division. "During the Great Depression in the 1930's, candy companies stayed in business." The best title of the passage is   _  . A) Sugar Is Comforting B) Candy Companies Has a Bright Future C) Americans Have a Sweet Tooth D) Sugar Sales Rise in the Recession
(Answer)
D


(Question)
Zoo elephants don't live as long as those in the wild, according to a study sure to cause debate about keeping the giant animals on display. Researchers compared the life spans of elephants in European zoos with those living in Amboseli National Park in Kenya and others working on a timber enterprise in Buma. Animals in the wild or in natural working conditions had life expectancies twice than or more of their relatives in zoos. Animal care activists have urged in recent years to discourage keeping elephants in zoos, largely because of the lack of space and small numbers of animals that can be kept in a group. The researchers found that the _ life span for African elephants in European zoos was 16.9 years, compared with 56 years for elephants who died of natural causes in Kenya's Amboseli Park. Adding in those elephants killed by people in Africa lowered the median life expectancy there to 35.9 years. For the more endangered Asian elephants, the median life span in European zoos was 18.9 years, compared with 41.7 years for those working in the Burma Timber Enterprise. Median means half died younger than that age and half lived longer. There is some good news, though. The life expectancies of zoo elephants have improved in recent years, suggesting an improvement in their care and raising, but "Protecting elephants in Africa and Asia is far more successful than protecting them in Western zoos." There are about 1,200 elephants in zoos, half in Europe, researchers concentrated on female elephants, which make up 80 percent of the zoo population. One amazing thing was that Asian elephants born in zoos had shorter life spans that those brought to the zoos from the wild. Zoos usually lack large areas that elephants are used to in the wild, and that zoo animals often are alone or with one or two other unrelated animals, while in the wild they tend to live in related groups of 8 to 12 animals. In Asian elephants, baby death rates are two to three times higher in zoos than in the Burmese logging camps, and then, in... Which of the following is Not the disadvantage of keeping elephants in zoos? A) Limited number of relatives. B) Lack of space. C) Shorter life expectancy. D) Less attention.
(Answer)

D