题目内容
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The deeper divers goes down in the sea,
A.the wanner the sea becomes
B.the colder they find the sea is
C.the less the water above presses down
D.the heavier their clothes must be
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The sea is very deep in some places. There is one spot, near Japan, where the sea is nearly 11 kilometres deep. The highest mountain in the world is about 9 kilometres high. If that mountain were put into the sea at that place, there would be 2 kilometres of water above it.
If you have swum in the sea,you know that it is salty. You can taste the salt. Rivers,which flow into the sea, carry salt from the land into the sea. Some parts of the sea are less salty than other parts. There is one sea, called the Dead Sea, which is very salty. Because it is very salty, swimmers cannot sink! Fish cannot live in the Dead Sea.
In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea.Others live deep down. There are also millions of tiny living things that float in the sea. These floating things are very small. It is hard to see them. Many fish live by eating them.
The sea can be very cold. Divers, who dive deep down in the sea, know this. On the top thewater may be warm. When the diver goes downwards, the sea becomes colder and colder.
Another thing happens. When the diver goes deeper, the water above presses down on him. It’ squeezes him. Then the diver has to wear clothes made of metal. One spot of the sea near Japan is____.
A.nearly nine kilometres deep
B.almost eleven kilometres high
C.two kilometres above the highest mountain in the world
D.two kilometres deeper than the height of the world, s highest mountain
Which of the following is NOT true？A.Fish cannot live in the salty sea
B.The sea gets its salt from rivers
C.Different parts of the sea have different amount of salt
D.There is no fish in the Dead Sea
Fish in the sea live____.A.near the top of the sea
B.deep down in the sea
C.at different depth of the sea
D.on tiny living things in the sea
The deeper divers goes down in the sea,____.A.the warmer the sea becomes
B.the colder they find the sea is
C.the less the water above presses down
D.the heavier their clothes must be
请帮忙给出每个问题的正确答案和分析，谢谢！
A.gold and jewels
B.parts of ships
C.whole ships
D.all of the above
A.nearly nine kilometres deep
B.almost eleven kilometres high
C.two kilometres above the highest mountain in the world
D.two kilometres deeper than the height of the world's highest mountain
The riches of the sea yet to be developed by man ’s technology are impressive. Oil and gas explorations have existed for nearly thirty years. Valuable amounts of minerals such as iron, nickel and copper and so on exist on the ocean floor, ready to be mined.
Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish is an ancient skill practiced in the past mainly by Oriental peoples.
Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. Ocean currents and waves offer possible use as a source of energy such as hydroelectric power.
Technology is enabling man to explore ever deeper under the sea. The new undersea technology is providing divers with diving suits and undersea chambers that are kept at sea level pressure. The development of strong, new materials has made this possible.
The technology to harvest the sea continues to improve. By the year 2000, experts believe that the problems to exploit the food, minerals, and energy sources of the sea will be largely solved.
What is the best title for the passage？
A.Needs of .Man
B.Sources of..Energy
C.Sea Harvest
D.Sea Exploring Technology
According to the author, technology for exploring the sea is important because______.A.man cannot travel farther into space
B.resources on land are running short
C.it’s a lot of fun diving into the sea
D.ancient people used to explore the sea
Why does the author mention a steamship？A.To indicate that it is warmer in the ocean than on land.
B.To show that a steamship is better than other kinds of ship.
C.To argue that man should use steamships more than other means of transportation.
D.To illustrate that man can make use of sources of energy from the sea.
It can be inferred from the passage that_______.A.man hasn’t completely developed the riches of the sea
B.technology for exploring the sea has been solved
C.planting rice in the sea will be made possible in a short time
D.in the near future man can live on the ocean floor
The word “exploit” in the last paragraph could best be replaced by________.A.evaluate
B.develop
C.gather
D.scatter
请帮忙给出每个问题的正确答案和分析，谢谢！
21.
A. Whether
B. When
C. While
D. As
The divers （潜水员)hoped to （）some of the secrets of the seabed.
A.unlock (揭开)
B.lock
C.unfold
The Craighead Caverns have been known ________. A. through history B. since the time of the Indian nations C. since 1905D. since divers explored them
The Grand Prairie Area Demonstration Project seemed, at first, a fine idea. The Grand Prairie is the fourth-largest rice-bowl in the world, with 363,000 acres under paddies. But it is running out of water, with farmers driving wells deeper and deeper into the underlying aquifer. The new project, dreamed up around a decade ago, would tap excess water from the White river when it floods and pumps it, at the rate of about one billion gallons a day, to storage tanks on around 1000 rice farms.
Unfortunately, it would also divert water from the region's huge, swampy wildlife refuges, home to black bears and alligators and the pallid sturgeon. Tiny swamp towns like Clarendon and Brinkley, which are heavily black and almost destitute, rely on nature tourism for the little economic activity they have. In Brinkley, the barber offers an "ivorybill" haircut that makes you look like one.
The project has some powerful local backers. They include Blanche Lincoln, the state's senior senator, who grew up on a rice farm in Helena, and Dale Bumpers, a former four-term senator and governor of Arkansas. Mr. Bumpers, long an icon of the environmental movement and prominent in the efforts to establish the refuges, now believes the water project is important for national security in food and trade, and that it will not damage the forests he has worked to protect.
Opponents worry that the project, apart from its environmental risks, will overwhelm the innovative water conservation methods that rice-farmers are already using, and give the biggest water users an unfair advantage. They also object that it means using subsidised pumps to provide subsidised water for a crop that doesn't pay. Rice is one of the most heavily assisted crops in America; rice payments cost taxpayers almost $10 billion between 1995 and 2004, and rich farmers round Stuttgart in Arkansas County (an efficient and politically shrewd group) took in $21.2m in subsidies in 2004 alone.
It can be inferred from the first paragraph that ______.
A．an ivory-billed woodpecker was shot by a lone kayaker two years ago.
B．the ivory-billed woodpecker was accustomed to living among cypress trees.
C．the irrigation project is probably broken off by the ivory-billed woodpecker.
D．the appearance of the ivory-billed woodpecker may make the irrigation project terminated.
These excursions will give you an even deeper ______ into our language and culture.
A．inquiry
B．investigation
C．input
D．insight
The word “deeper” in paragraph 1 is closest in meaning to which of the following？
A.heavier．
B.louder．
C.stronger．
D.happier．
