题目内容
killing the seven astronauts on board in what NASA and President Bush called a tragedy for the entire nation.
NASA launched an investigation into the disaster and began searching for the astronauts' remains. It said that
although there had been some data failures it was too early to nail down a precise cause. The break-up, 16
minutes before the shuttle was due to land at Kennedy Space Center in Florida, spread possibly toxic debris
(有毒的残骸) over a wide area of Texas and neighboring states.
Dramatic television images of the shuttle's descent clearly showed several white trails (痕迹) streaking
through blue skies after the shuttle suddenly fell apart. It was almost 17 years to the day that the Challenger
shuttle exploded on Jan. 28, 1986, killing all seven astronauts on board.
Take-off and re-entry into Earth's atmosphere are the most dangerous parts of a space mission. In 42
years of US' human space flight, there had never been an accident in the descent to Earth or landing.
Challenger exploded just after take-off.
Rescue teams scrambled to search for the remains of the crew, which included the first Israeli to fly on
the shuttle, former combat pilot Col. Ilan Ramon. There were warnings that parts of a vast 120-mile-long
corridor of debris could be toxic because of poisonous rocket propellant (推进器).
"We are not ready to confirm that we have found any human remains," Nacogdoches County Sheriff
Thomas Kerrs said. He added that among the roughly 1,000 calls reporting debris, some people said they
found remains of crew members.
"The Columbia is lost. There are no survivors, …Their mission was almost complete and we lost them
so close to home. … America's space program will go on," said a grim-faced Bush in a message broadcast
on television, which included condolences (同情) to the families of the dead astronauts.
B. landing
C. orbiting (绕轨运行)
D. walking down
B. He was the first foreign astronaut to fly on the American shuttle.
C. He used to be a passenger plane pilot.
D. He was the only survivor in the Columbia disaster.
B. both the shuttles exploded when they took off
C. Both the shuttles exploded when they were about to land
D. no human remains were found
B. NASA hasn't found the cause of the Columbia disaster.
C. Before the Columbia disaster, no shuttles had exploded in the course of landing.
D. Take-off and re-entry into Earth's atmosphere are the most dangerous parts of a space mission.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 阅读理解. | ||||||||||||
| Advertising is a form of communication that uses all kinds of media, and is visible everywhere these days. Typical customers of advertising companies are other companies, or businessmen, who want to persuade potential customers to buy more of what they make or sell. But there are other kinds of customers. Some organizations spend large sums of money on advertising a political party or other group that sells what is not, strictly speaking, a product or service. Such non - profit organizations are not typical advertising customers, and they prefer ways of spreading knowledge, changing attitudes, and improving society. Many advertisements are designed to increase sales of products and services by either improving brand image or, in the case of non - profit organizations, expressing ideas. In order to achieve th~s, advertisements will often pass on truthful information while delivering their messages. Every major medium is a means of delivering these messages, including television, radio, cinema, magazines, newspapers, video games, the Internet and billboards (大幅广告牌). Advertising will usually be created and. placed by an advertising agency on behalf of company or other organization. Spending on advertising has increased greatly in recent years. In 2006, spending was estimated at $155 billion in the United States and $385 billion worldwide; the latter is expected to reach more than $500 billion by 2010. While advertising can be seen as a necessity for economic growth and social development, it is not without social costs. Advertisement emails and other forms of junk mail have become so popular that ~they have become a major burden to users of I nternet email services, as well as a financial burden on Internet email service providers.
| ||||||||||||