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The GMDSS defines four sea area based on the（）.
A . location and capacity of the facilities located on board ships
B . Position and type of a sincere sintion
C . Capacity and location of shore based communication facilities
D . Position and capacity of mobile communication statio
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The fishing boat upset and sank to the（）of the sea.
A . base
B . under part
C . bottom
D . down place
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In Beaufort Scale，the wind force 7 with speed of 28-33 knots is defined as（）.
A . Moderate gale
B . Near gale
C . Strong gale
D . Whole gale
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（）is not within the exception of the perils of the sea.
A . Stranding on rocks during fog
B . Fire at sea
C . Rough sea beating into a ship
D . The decaying of the cargo
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— Is this the motel you mentioned? —（）
A . It looks comfortable
B . Yes, it’s as quiet as we expected
C . You’re so considerate
D . No, the price’s reasonable
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（）is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature.
A . MIXING FOG
B . ADVECTION FOG
C . RADIATION FOG
D . ARCTIC SEA SMOKE
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The Beaufort scale is used to estimate the（）.
A . Wind direction
B . Percentage of cloud cover
C . Wind speed
D . Barometric pressure
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Spreading oil on the open sea has the effect of（）.
A . diminishing the height of the seas
B . lengthening the distance between successive crests
C . increasing the height of the seas
D . preventing the wave crests from breaking
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as various as the sands of the sea
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Why does the professor mention childhood?
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“Above the sea level” means altitude. （ ）
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The product mentioned of the company is ice cream.
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While watching the sea lions’ performance, the author ____.
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Which of the following is mentioned in the passage？
A．Teachers are well paid at Deep Springs.
B．Students are mainly from New York State.
C．The length of schooling is two years.
D．Teachers needn’t pay for their rent and meals.
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Why does the author mention "the Louisiana Purchase"？
A．To demonstrate how the westward expansion of the United States came about.
B．To illustrate Washington's contribution to the evolution of the United States.
C．To explain why Jefferson was chosen to be one of the presidents on Mount Rushmore.
D．To show why Jefferson's inclusion on Mount Rushmore was a contentious issu
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？？The same detection system mentioned in the previous paragraph？？
A.The same detection system mentioned in the previous paragraph
B.A breathalyzer attached to a car&39;s seat belt
C.A smart car seat belt
D.An intelligent engine
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What does the speaker mention about the security code？
A．It will only be provided to the security guards.
B．A new code will be assigned everyday.
C．Everyone should memorize it.
D．It is available to anyone.
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Sea horses are unusual parents. The female sea horses lay the eggs, but unlike other creatures, it's the males that give birth to the young.
Male sea horses have a fold of skin on their bellies that forms pocket, called a brood pouch. During the breeding season, the sea horse's pouch swells to receive eggs. A female sea horse lays up to 200 eggs at a time in the pouch. Then she swims off, leaving her male partner to care for the developing eggs and give birth to young sea horses. The female will return everyday to check on her mate and the eggs, but she doesn't stay long, nor does she take part in the birth.
It takes from two to six weeks for the eggs in the male's pouch to develop. During this time the male avoids open water and hides in sea grass. His big pouch makes it difficult for him to swim, so the male often uses his tail to grasp a piece of sea grass. Firmly gripping the grass, he will stay perfectly still for hours or even days. The male sea horse will change his color to blend with his surroundings and avoid being seen by predators who will try to eat him or poke holes in his pouch to get the eggs.
The eggs hatch inside the male's pouch. When the babies begin moving around, the male sea horse knows it's time for them to be born. He grabs a sea grass stem with his tail and begins rocking, bending, and stretching his body so that the rest of the babies can be born. Sometimes he has to press his pouch against a rock Or some stiff seaweed to force the young out.
Sea horse babies are born in groups of five or more. Sometimes it takes two days for the father sea horse to give birth to all his young. He is very tired when it's over.
Soon after giving birth to one brood, the male will approach his mate and show her his empty pouch. This tells her he is ready to receive eggs again.
What part does the female sea horse play in having babies？
A．Receiving eggs.
B．Laying eggs.
C．Hatching eggs.
D．Protecting eggs.
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What does the man mention about the place？
A．Its service is one of a kind.
B．It sells the freshest fruit and vegetables.
C．Its selection of baked goods is the biggest.
D．It has the best tasting food.
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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
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Oceanography has been defined as "The application of all sciences to the study of the sea". Before the nineteenth century, scientists with an interest in the sea were few and far between.
Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant to go to sea to further his work.
For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question "what is at the bottom of the oceans？" Had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile of the route to estimate the length of cable that had to be manufactured.
It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings were taken to investigate the depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much popular interest in his book The Physical Geography of the Sea.
The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairs it was found to be covered in living growths, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea.
Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition, which lasted four years and brought home thousands of samples from the sea.
Their classification and analysis occupied scientists for years and led to a fivevolume report, the last volume being published in 1895.
The proposal to lay a telegraph cable from Europe to America made oceanographic studies take on ______.
A．an academic aspect
B．a military aspect
C．a business aspect
D．an international aspect
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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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Why are coral reefs called the rainforests of the sea（）
A．Because they are home to a wide variety of sea life
B．Because they can protect our coasts from storms
C．Because they might supply natural medicines
D．Because they look like rainforests
