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[单选题]

The deeper under the sea you go, the more pressure is ________ by the weight of the water.

A.influenced

B.used

C.exerted

D.exercised

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ABCD

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更多“The deeper under the sea you g…”相关的问题

第1题

Man is a land animal, but he is also closely tied to the sea.Throughout history the se

a has served the needs of man.The sea has provided man with food and a convenient way to travel to many parts of the world.Today, experts believe that nearly two-thirds of the world’s population live within eighty kilometers of the seacoast.

In the modern technology world, the sea offers many resources to help mankind survive.Resources on land are beginning to grow less.The sea, however, still offers hope to supply many of man’s needs in the future.

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, copper and so on exist on the ocean floor.

Besides oil and gas, the sea may offer new sources of energy.For example, warm temperature of the ocean can be used as the steam in a steamship.Sea may also offer a source of energy as electricity for mankind.

Technology is enabling man to explore even deeper under the sea.It is obvious that the technology to harvest the sea continues to improve.By 2050, experts believe that the problems to explore the food,

minerals and energy resources of the sea will have been largely solved.

26.What is the proper title for the passage______

A.Needs of Man

B.Sea Harvest and Food

C.Sea and Sources of Energy

D.Sea Exploring Technology

27.It can be inferred from the passage that______

A.man hasn’t completely made use of the riches of the sea

B.technology for exploring the sea has been solved

C.harvesting rice in the sea will be made possible

D.in the near future man can live on the ocean floor

28.Why does the author mention a steamship______

A.To illustrate that man can make use of sources of energy from the sea

B.To show that a steamship is better than other kinds of ships

C.To argue that man should use steamships

D.To indicate that it is warmer in the ocean than on land

29.According to the author, technology is important because______

A.resources on land are running short in ten years

B.man can use it to explore the deeper sea

C.it is a lot of fun diving into the sea

D.ancient people used it to explore the sea

30.According to the author, when will the problems to explore the deeper sea largely be solved______

A.In the next generation

B.By the end of the 20th century

C.In the near future

D.By the middle of the 21st century

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第2题

THE ivory-billed woodpecker is not large, as birds go: It is about the size of a crow, but

flashier, its claim to fame is that, though it had been thought extinct since 1944, a lone kayaker spotted it about two years ago, flying around among the cypress trees in the Cache River National Wildlife Refuge. And that sighting may prove the death-blow to a $319m irrigation project in the Arkansas corner of the Delta.

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.

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第3题

The sea looks very pretty when the sun is shining on it.It can be very rough when there is a strong wind.The sea is very big.It covers three quarters of the globe!The sea is also very deep in some places.There is one spot near the Philippines ,where the sea is about 11 kilometers deep.The highest mountain in the world is about 9 kilometers high.If that mountain was put in the sea at that place,there would still be 3 kilometers of water above it!What a deep place!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 millions of tiny living things that float in the sea.Many fish live by eating them.The sea can be very cold.When the diver goes downwards,the sea becomes colder and colder.When the diver goes deeper,the water exerts greater pressure.

1.Which of the following statements is true?（）

A、When the diver dives under the sea,he gets colder and colder.

B、When the diver sinks to the bottom,he is to be colder and colder.

C、When the diver sinks in the sea,he will be rather cold.

D、When the diver dives downward,the sea gets colder and colder.

2.There is one spot near the Philippines,where the sea is as deep as（）.

A、13 kilometers

B、9 kilometers

C、2 kilometers

D、11 kilometers

3.From the information given,why has the diver to wear a diving suit?（）

A、Because the diver is likely to be attacked by fish.

B、Because the water at great depths is very cold.

C、Because the salt water seems unsuitable for diver.

D、Because the pressure of water at great depths is immense （巨大的）.

4.There are millions of tiny living things that float in the sea,and（）.

A、they live by eating fish

B、they live by eating plants

C、they are good food for many fish

D、they live by eating worms

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第4题

The sea looks very pretty when the sun is shining on it. It can be very rough when the

re is a strong wind. The sea is very big. It covers three quarters of the globe! The sea is also very deep in some places. There is one spot near the Philippines , where the sea is about 11 kilometers deep. The highest mountain in the world is about 9 kilometers high. If that mountain was put in the sea at that place, there would still be 3 kilometers of water above it! What a deep place! 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 millions of tiny living things that float in the sea. Many fish live by eating them. The sea can be very cold. When the diver goes downwards, the sea becomes colder and colder. When the diver goes deeper, the water exerts greater pressure.

1、There is one spot near the Philippines, where the sea is as deep as ().

A、13 kilometers

B、 9 kilometers

C、 2 kilometers

D、 11 kilometers

2、There are millions of tiny living things that float in the sea, and().

A、they live by eating fish

B、they live by eating plants

C、they are good food for many fish

D、they live by eating worms

3、Which of the following statements is true？ ()

A、When the diver dives under the sea, he gets colder and colder.

B、When the diver sinks to the bottom, he is to be colder and colder.

C、When the diver sinks in the sea, he will be rather cold.

D、When the diver dives downward, the sea gets colder and colder.

4、From the information given, why has the diver to wear a diving suit？ ()

A、Because the diver is likely to be attacked by fish.

B、 Because the water at great depths is very cold.

C、 Because the salt water seems unsuitable for diver.

D、 Because the pressure of water at great depths is immense (巨大的 ).

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第5题

根据材料请回答 36～40 题 SleepSleep is part of your daily activity cycle, but there are

根据材料请回答 36～40 题

Sleep

Sleep is part of your daily activity cycle, but there are several differenttypes or stages of sleep and they too occur in cycles.If you are an average sleeper, your sleep cycle will go something like this： When you first drift off into sleep your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular.Your brain waves slow down a bit too.This is called Stage 1 sleep.

For the next half hour or so, as you relax more and more, you will drift down through Stage 2 and Stage 3 sleep.The lower your stage of sleep, the slower your brain waves will be.Then, about 40-60 minutes after you lose consciousness, you will have reached the deepest sleep of all.Your brain waves will show the delta rhythm.This is Stage 4 sleep.

You may think that you stay at this deep fourth stage all the rest of the night, but that turns out not to be the case.Instead, about 80 minutes after you fall into sleep your activity cycle wilt increase slightly.The delta rhythm will disappear, to be replaced by the activity pattern of brain waves.Your eyes will begin to move around under your closed eyelids as if you were looking at something occurring in front of you.This period of Rapid Eye Movements lasts for some 8-15 minutes and is called REM sleep.During both light and deep sleep, the muscles in your body are relaxed but capable of movement.However, as you slip into REM sleep, a very odd thing occurs.Most of the voluntary muscles(随意肌)in your body become paralyzed(麻痹).Although your brain shows very rapid bursts of neural activity during REM sleep, your body is incapable of moving.

第 36 题 The lower the stage of sleep

A．the greater the alpha waves will be

B．the slower the brain waves will appear

C．the slower the activity pattern of the brain

D．the deeper the sleeper gets to unconsciousness

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第6题

The new century will see a significant and（) change in ChinA

A.far

B.deeper

C.far-reaching

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