题目内容
A hurricane hit the city last night and large ____of damage _____in a very short time.
- A.numbers; were done
- B.amounts; was done
- C.amounts; were done
- D.quantities; was done
Ever wonder how much a cloud weighs? What about a hurricane? A meteorologist has done some estimates and the results might surprise you.
Let's start with a very simple white puffy cloud — a cumulus cloud(积云). How much does the water in a cumulus cloud weigh? Peggy LeMone, senior scientist at the National Center for Atmospheric Research in Boulder, Colorado, did the numbers. "The water in the little cloud weighs about 550 tons," she calculates. "Or if you want to convert it to something that might be a little more meaningful … think of elephants."
The thought of a hundred elephants-worth of water suspended in the sky begs another question — what keeps it up there?
"First of all, the water isn't in elephant sized particles(微粒), it's in tiny tiny tiny particles," explains LeMone. And those particles float on the warmer air that's rising below. But still, the concept of so much water floating in the sky was surprising even to a meteorologist like LeMone. "I had no idea how much a cloud would weigh, actually, when I started the calculations," she says.
So how many elephant units of water are inside a big storm cloud—10 times bigger all the way around than the "puffy" cumulus cloud? Again, LeMone did the numbers: About 200,000 elephants.
Now, ratchet up the calculations for a hurricane about the size of Missouri and the figures get really massive. "What we're doing is weighing the water in one cubic meter theoretically pulled from a cloud and then multiplying by the number of meters in a whole hurricane," she explains.
The result? Forty million elephants. That means the water in one hurricane weighs more than all the elephants on the planet. Perhaps even more than all the elephants that have ever lived on the planet.
【小题1】The weight of is NOT mentioned in the passage.
| A.a cumulus cloud | B.a tornado | C.a hurricane | D.a storm cloud |
| A.She found it not convincing. |
| B.She thought it needed further calculations. |
| C.She was quite surprised at it. |
| D.She considered the calculations inaccurate. |
| A.A storm cloud weighs about 200,000 elephants. |
| B.The water in a hurricane weighs more than that in any other kind of cloud. |
| C.There are less than forty million elephants living on the earth. |
| D.The water in the cloud is in very tiny partials. |
NEW YORK CITY?A hurricane warning has been given for New York City.Forecasters say Hurricane Irene could cause widespread flooding, power failure and billions of dollars in damage.About 65 million Americans live in Hurricane Irene's projected path —many of whom have been evacuated.
In New York City, Mayor Michael Bloomberg has ordered the city's first-ever evacuation. Roughly 250,000 people have been told to leave their homes in low-lying areas, including the Wall Street financial district.
WASHINGTON D.C.—On Aug.24, 2011, Apple announced that Mr.Steve Jobs, who has battled cancer for several years, was stepping down as the CEO but would serve as chairman.
In January, he had announced that he was taking a medical leave of absence from Apple.In announcing his leave, he turned daily oversight of the company over to the chief operating officer, Timothy D.Cook, and it was Mr.Cook whom Apple named to succeed him as the next CEO of the company.
TRIPOLI—Opposition forces in Libya say they control more than 90 percent of the country.It is still not clear where Moammar Gadhafi is.The opposition has offered more than 1,600,000 dollars for his capture (逮捕).The head of the opposition forces said his group supports a decision by local businessmen to provide the money in an effort to speed up the capture.Earlier Wednesday, government forces fired onto the former headquarters (总部) of Mr.Gadhafi, which is now controlled by opposition forces.Heavy fighting also continued near Tripoli's airport and in a town of Zuara.
1.The underlined word "evacuated" probably means ________.
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A.sent away to safer places |
B.gathered around to higher positions |
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C.flooded off to lower reaches |
D.left behind to dangerous situations |
2.Who has been appointed as the new CEO of Apple?
A.Steve Jobs. B.Michael Bloomberg.
C.Moammar Gadhafi. D.Timothy D.Cook.
3.From the news above, we know that in Libya _______.
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A.the local businessmen have offered money to catch hold of Gadhafi |
|
B.the opposition forces suffered a thorough defeat near Tripoli's airport |
|
C.the government forces are defending the headquarters of Mr.Gadhafi |
|
D.the town of Zuara is the place where Moammar Gadhafi probably hides |