|
It is quite rare for sandstorms, which are frequent between March and June, to happen in winter, when the earth is frozen. The sandstorms in Gansu and Inner Mongolia do not necessarily mean there will be more of them in the spring than last year, when they were serious, but Beijing is taking it very seriously. It is reported that Beijing will spend 6 billion yuan (US 725 million) in preventing sandstorms in the capital and has already set up a spe?cial team to make sure what causes them. 66. What is the main idea of the passage? A. Sandstorms took place in Gansu. B. Sandstorms happened on the first day of the new year. C. Sandstorms are very serious，compared to last year. D. Experts are trying their best to determine the cause of the sandstorm formed this year 67.Suppose the dust was 300 kilometers away from Beijing，it would reach Beijing about, hours later if it travels at a speed of 20 meters per second? A. 4.2 B. 1.5 C. 2.0 D. 2.5 68. Why did sandstorms begin in the winter this year? A. Because there was little snow this season. B. Because a lot of trees have been cut down. C. Because people took few measures to control them. D. It is not mentioned in the passage. 69. Which of the following doesn't belong to the bad effect the sandstorms have done in Bei?jing? A. The temperature fell. B. Flights put off their time to take off. C. The air is dirty. D. People had three days off 70. The author wrote the passage to . A. tell us the environments are becoming worse and worse B. explain what measures people have taken to control sandstorms C. make people realize the need to protect the environment D. call on us to do what we can to save the earth. D English is fast becoming the language of science around the world， but what is its future among everyday speakers? One expert points out that the percentage of native English speakers is declining (降低) while the languages of other rapidly growing regions are being spoken by increasing numbers of people. But English will continue to remain widespread and important. However，British language scholar David Graddol says English will probably drop in dominance(主导) by the middle of this century to rank，after Chinese，about equally with Arabic，Hindi，and Urdu. "The number of people speaking English as a first language continues to rise，but it isn't rising nearly as fast as the numbers of many other languages around the world，simply because the main population group has been largely in the less developed countries where languages other than English have been spoken，" he says. In a recent article in the journal Science，Mr. Graddol noted that three languages that are not near the top of the list of the most widely spoken now might be there soon. These are Bengali，Tamil，and Malay，spoken in south and southeast Asia. (责任编辑：admin) |