题目
Documents revealed that Orlov, the prime minister in charge of the paper industry, had ordered construction of a large cellulose complex on the lake's shores to produce a particularly durable rayon cord for airplane tires with the assumption that the pure water would facilitate the chemical process resulting in stronger fibers, and the story goes that Orlov had chosen the site by simply pointing to a place on the shoreline while cruising in a motorboat with some old friends. Tile site, however, turned out to be a seismically active region, and the buildings, while supported by steel piles, are still vulnerable to the major earthquakes that have occurred there once or twice a century.
The pure water helped the process, whose final product proved out-of-date, aviation industry switching to metallic cord. The variety of fish, unfortunately, fell victim to the toxic waste, the fragile ecological balance of the region threatened. Those concerned proposed that the lakeshores be closed to new industry and existing enterprises be moved but they encountered tough resistance from officials defending their decision and saving face by insisting on the complex's importance. Of course, what you see on pictures is still a beauty but the lake is no longer a home to more than 1,000 species of plants and animals unknown anywhere else.
The statement that best relates the main idea of this passage is ______.
A.too many people are attracted to the lake that it has now been deprived of its natural beauty
B.an important natural resource is destroyed by human ignorance
C.industry is less important than ecological balance
D.one should be extremely careful when choosing a construction site
第1题
第3题
Four of Robert's children were at the party, including(), Luke.
A. the oldest
B. an oldest one
C. the old
D. an old one
第6题
A.London
B.Paris
C.Antwerp
D.New York
第7题
A.found
B.finding
C.founding
D.founded
第8题
第9题
A reasonable observer might choose other words: obsession, fantasy. Bill possesses neither great wealth nor extensive political connections. He is an engineer and runs Stone Aerospace, a company so small that when FedEx rings, he usually signs for the package himself. So to hear Bill talk—"It's not a big leap for me to go to Jupiter. For Bill, caves are a proving ground. The experience gained there will help people explore outer space.
But now, after spending nearly three decades on the margins of the space industry, Bill is closer than he's ever been to proving that caves are the best earthly training ground for exploring space. Backed by a $5-million fund from NASA, he is developing a robot called DepthX that may turn out to be the most advanced autonomous underwater vehicle (AUV) ever. NASA hopes to someday use a robot like Bill Stone's DepthX to explore Europa, a frozen moon of Jupiter and one of the most probably places in our solar system to support life. Like its inventor, DepthX is a caver, most capable of searching harsh environments. Its theoretical mission, though, is bold even by Bill's standards: a hunt for extraterrestrial(地球外的) life on Europa.
Innovator Bill Stone plans to drop one of the world's most advanced underwater robots, DepthX, into the deepest hole on Earth. If all goes well, this thing just might help get him to Europa DepthX's first major field trial will take place this month in Mexico's Zacatén Cenote, the world's deepest hole. For Bill's future space ambitions to have any chance, he needs to impress the new generation of wealthy space-loving investors. To do that, he needs to ace(取得好成绩) this first trial and, at 54 years old, he needs to do it fast. As one of his oldest friends puts it, "Time is running out for Bill."
What have Bill Stone and his teams accomplished?
A.They have explored many caves and reached the deepest cave in our planet.
B.They have sponsored the National Geographic Society to explore caves.
C.They have explored the outer space and set up funds for it.
D.They }rave explored and measured the deepest gave in Jupiter.
第10题
A.The oldest states are the ones along the Pacific coast.
B.Washington is the most important and the largest city.
C.New York is the largest city in the United States.
D.Henry's cousin lives in the Seattle.
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