题目内容
Many of the most damaging and life threatening types of weather torrential rains, severe thunderstorms, and tornadoes(龙卷风,)--begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighboring areas untouched. Such event as a tornado struck the north eastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $ 250 million, the highest ever for any Canadian storm.
Conventional computer models of the atmosphere have limited value in predicting short lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the subtle (微妙的)atmospheric changes that come before these storms. In most nations, for example, weather - balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation intensive approach needed for accurate, very short - range forecasts, or "Now casts", was not feasible. The cost of e quipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were hard to overcome. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modem computers can quickly compile and analyze this large volume of weather information. Meteorologists(气象学者) and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, now casting is becoming a reality.
The word "exceeded" in paragraph 1 most probably means ______.
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SECTION C NEWS BROADCAST
Directions: In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.
听力原文： Negotiators from China are due to meet their US counterparts in Washington later for talks aimed at ending a dispute over the textiles trade. US manufacturers are concerned the rapid flow of cheap Chinese products into America could drive them out of business. I'm joined now by Tanya B. from New York. Tanya, first of all, what went wrong the last time we had talks between the US and China on textiles？ What are the main sticking points？
Well, the problem really is that the two sides are getting fairly angry with each other. On the one hand China says that you can't do this. This is not in the spirit of free trade globally. On the other hand the US is saying well the quota is expired at the beginning of the year and since then we have seen a surge of Chinese imports and that is disruptive to our markets. So the sticking points are really that the US would like to stick with an agreement to limit the growth of Chinese textile imports.
According to the news, what is the US manufacturers' concern about the Chinese textile imports？
In the United States, parents do not【C3】______ marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social【C4】______ .【C5】______ young people feel free to choose their friends from【C6】______ groups, most choose a mate of similar【C7】______ . This is due in part to parental guidance. Parents cannot【C8】______ spouses for their children, but they can usually 【C9】______ choices by voicing disapproval of someone they consider unsuitable.
【C10】______ , marriages between members of different groups (interclass, interfaith, and interracial marriages) are【C11】______ , probably because of the greater mobility of today's youth and the fact that they are【C12】______ by fewer prejudices than their parents. Many young people leave their home towns to attend college, serve in the armed forces, 【C13】______ pursue a career in a bigger city. Once away from home and family, they are more【C14】______ to date and marry outside their own social group. In mobile American society, interclass marriages are neither【C15】______ nor astonishing. Interfaith marriages are 【C16】 ______ the rise, especially between Protestants and Catholics. On the other hand, interracial marriages are still very【C17】______ . It can be difficult for interracial couples to find a place to live, maintain friendships, and 【C18】______ a family. Marriages between people of different national【C19】______ (but the same race and religion) have been commonplace here 【C20】______ colonial times.
【C1】
Speaking on CNN's "Late Edition," South Korean Foreign Minister Ban Ki-Moon sounded upbeat about the current round of six-party talks on North Korea's nuclear program.
"I think during the last round of our six party talks, we have entered into a stage of real and substantive negotiations," he said. "This is what we have been doing and, with close consultations between Korea and the United States, also with other related parties, I think we are more or less optimistic that we will be able to result in a substantive resolution of nuclear weapons program this time."
The talks also include North Korea, China, Japan and Russia.
How did the South Korean Foreign Minister feel about the current talks？
This study concludes that an even bigger public health problem has been caused by persistent myths and misconceptions about the threat of radiation among some 350,000 people evacuated from the area. The study also found there was no evidence for increased numbers of deformed babies or fertility problems in the Chernobyl region. The overall message seems to be that fear and misinformation prove to be a bigger threat than the radiation itself.
What does the UN report find about the Chernobyl nuclear disaster？
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