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A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)（）.
A . hydraulic current
B . rectilinear current
C . rotary current
D . harmonic current
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A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a（）.
A . hydraulic current
B . rectilinear current
C . rotary current
D . harmonic current
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（）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.
A . Boiler
B . Incinerator
C . Oily water separator
D . Sewage treatment unit
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An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.
A . propeller hub
B . lignum vitae
C . shaft packing
D . labyrinth seal
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Some vessels are equipped with a water lubricated stern robeWhen at sea, operating under normal conditions, the water service valve from the ships saltwater system to the bearing should be （）.
A . closed, and no leakage permitted across the shaft packing
B . closed, and only slight leakage permitted across the shaft packing
C . open, and no leakage permitted across the shaft packing
D . open, and only slight leakage permitted across the shaft packing
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The movement of water away from the shore or downstream is called a(n)（）.
A . reversing current
B . ebb current
C . flood current
D . slack current
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As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called（）.
A . propeller velocity
B . speed of advance
C . wake distribution
D . wake fractio
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（） is the production of pure water from sea water by evaporation and re-condensing.
A . Evaporation
B . Circulation
C . Condensation
D . Distillatio
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Vents are led from the engine to the head tank for the release of （） from the cooling water.
A . air
B . heat
C . sludge
D . steam
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（）can not cause oil flow from water outlet of self-cleaning separator.
A . Oil temperature too high
B . Diameter of gravity disc too large
C . Oil temperature too low
D . High level tank out of water
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Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）
A . increase blow-by in all cylinders
B . incomplete combustion in all cylinder
C . overloading in all cylinders
D . insufficient fuel delivery to all cylinder
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How many people are saved from the icy sea water?
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There are 24 major meridians that run on both sides of the body.
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Why is K’s farm depicted as suffering from the shortage of water?
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Meridians are a vast network of visible energy pathways in your body.
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Endocrine glands are located in widely separated parts of the body.
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原文:物体在水中比在空气中轻,这是一个大家共有经验。译文:It is a of common experience that are in water than they are in air.第一空：matter；第二空： bodies；第三空： lighter
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After they are produced from acetyl-CoA in the liver, ketone bodies are mainly used for which one of the following processes?
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Scientists are working on the __________ of salt water into fresh water.
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听力原文：The main policy-making bodies of the EU are the Commission, the Council of Minist
听力原文： The main policy-making bodies of the EU are the Commission, the Council of Ministers, and the European Parliament. The Commission has 17 members appointed by EU countries for four-year terms. It is an executive body with the right of proposing initiatives to the Council of Ministers. This Council is made up of the foreign ministers from the member nations. Although the Commission represents community interests, the Council represents the national interests of the members. Members of the Council rotate the presidency with each holding the office for six-month terms.
The European Parliament had 626 members in 1995. The representatives are elected by citizens of member nations. The number of representatives differs according to the size of each country. Germany for example, has 99 representatives, while Luxembourg has six. When the Parliament meets, the representatives sit in political groups, not by nation. Some of the political groups are: the Socialists, the European People's party (or Christian Democrats), the Liberal Democratic and Reform. Group, the European Democrats, and the Greens (an environmental group).
Other EU institutions are the Court of Justice, the Court of Auditors, the Economic and Social Committee, and the European Investment Bank. The Court of Justice, founded in 1958, reviews the legality of acts of the Commission and Council. The Court of Auditors, founded in 1977, monitors the revenues and expenditures of the EU. Since 1958 the Economic and Social Committee has revised the Commission and the Council on general economic policy. The Committee has 189 members representing employers, labor unions, farmers, professions, consumers, and small businesses. The European Investment Bank, founded in 1958, is an independent public institution that oversees long-term investment.
Whose interests does the Council of Ministers represent？
A．The community interests.
B．The interests of the foreign ministers from the member nations.
C．The interests of the Council members.
D．The national interests of the members.
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Mind and body are two parts of a complex organism controlled by the nervous system, which acts on information received from the senses. The way a person perceives and reacts depends on his mood, his state of health, his diet, his body temperature and his level of consciousness.
2. There is considerable evidence that every thought or emotion has some related physical effect, and that every change within the nervous system should have some psychological effect. Although the precise nature of these correlations is not always known, the view that body and mind are constantly interacting in some way is now accepted by most psychologists.
3. The relationship between mind and body is particularly apparent in emotional states, especially those of fear and anger. When a person is in the grip of a powerful emotion his body undergoes changes, just as it does when he is asleep, ill or under the influence of drugs or alcohol. Most people are familiar with such sensations as a dry mouth when they are nervous, or a racing heart when they are afraid or excited. Such physical changes can be measured, for instance, by recording pulse rate and breathing, or by measuring the dilation of the pupils of the eyes.
4. a particularly sensitive measure of bodily change during periods of emotion is the galvanic skin response(GSR). This is used in the instrument known as the lie detector. The GSR depends on the fact that some mental activity produces bodily changes, such as sweating, which affect the skin's resistance to electricity. To measure GSR, electrodes are placed on the palm and on the back of the hand, and a weak current is passed between the electrodes. Changes in the current are recorded in an amplified form, often by means of an automatically controlled pen on moving paper. Other recordings, for instance of pulse, blood pressure and breathing, can be made simultaneously, by an instrument called a polygraph.
5. The galvanic skin response method has proved a very efficient indicator of general psychological arousal. Even slight embarrassment will cause a defection of the recording pen.
A. Every thought or emotion has some related physical effect.
B. GSR is a measure of bodily change during periods of emotion.
C. GSR is very efficient in indicating people's emotion.
D. GSR is very expensive.
E. GSR is used to judging prisoners.
F. Mind and body has an apparent relationship.
Para 2 ______.
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The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.
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Man depends on water for many things. He needs it for drinking. He needs it for growing food. He needs it for keeping himself clean and free from illness. He needs more and more water for industry. People often forget how necessary water is for industry. Imagine, for example, the immense quantities of water used by the great cooling towers of steel works. The demand for water is growing every day. It is closely connected with the increasing population and with the pressing problem of providing enough food. But the world has not yet found ways of storing enough water to satisfy all these important needs, not even in west countries like England. Great efforts are being made today to store water, particularly in hot countries where the rainfall is small.
Three-quarters of the world is covered with water. But only three percent of this water is fresh. All the rest is salt, and fills the oceans and the great inland seas. It is the salt that makes sea water useless to man. If you take the salt away the water can be used for drinking and for watering plants.
In 1962 President John Kennedy of the United States said, "When man discovers how to mm salt water into fresh water cheaply, he will have made a much more important scientific advance than when he first landed on the moon".
Human beings need water for【46】,【47】and【48】and【49】.
Main idea: The【50】
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As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the 【C1】______ of rushing through life, being on the go from morning till night, it is hard to 【C2】______ down. But relaxation is essential for a 【C3】______ mind and body.
Stress is natural part of everyday life and there is no way to 【C4】______ it. In fact, it is not the bad thing it is often 【C5】______ to be. A certain amount of stress is vital to provide 【C6】______ and give purpose to life. It is only 【C7】______ the stress gets out of control that it can lead to 【C8】______ performance and ill health.
The amount of stress arsons can withstand depends very much 【C9】______ the individual. Some people are not afraid of stress, and 【C10】______ characters are obviously prime material for managerial responsibilities. Others lose 【C11】______ at the first signs of unusual difficulties. When 【C12】______ to stress, in whatever form, we react both chemically and 【C13】______ . In fact we make choice between "flight and fight" and in more primitive days the choices made the difference 【C14】______ life and death. The crises we meet today are 【C15】______ to be so extreme, but however little the stress, it 【C16】______ the same response. It is when such a reaction lasts long, through continued 【C17】______ to stress, that health becomes 【C18】______ . Such serious conditions as high blood pressure and heart diseases have 【C19】______ links with stress. Since we cannot 【C20】______ stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.
【C1】
A．routine
B．habit
C．principle
D．rule
