Dr. Wilson is satisfied with Wang's past experience.

A. Right
B. Wrong

Wang decides to take courses and pass exams.

A. Right
B. Wrong

The author gave an example in the third paragraph in order to______.

A. emphasize the need to place a stronger value on national cooperation
B. explain why the American idea has been based on individual freedom
C. illustrate the fact that Americans will not sacrifice their personal interest for the good of the entire country
D. support the idea that Americans needs the spirit of national cooperation to achieve important national objectives in the 21st century

Perhaps the most known are the electric rays, or torpedoes, of which several kinds live in warm seas. They possess on each side of the head, behind the eyes, a large organ consisting of a number of hexagonal-shaped cells rather like a honeycomb. The cells are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current gets through from the upper, positive side of the organ downward to the negative, lower side. Generally it is necessary to touch the fish in two places, completing the circuit, in order to receive a shock.<br>The strength of this shock depends on the size of fish, but newly-born ones only about 5 centimeters across can be made to light the bulb of a pocket flashlight for a few moments, while a fully grown torpedo gives a shock capable of knocking a man down, and, if suitable wires are connected, will operate a small electric motor for several minutes.<br>Another famous example is the electric eel. This fish gives an even more powerful shock. The system is different from that of the torpedo in that the electric plates run longitudinally and are supplied with nerves from the spinal cord. Consequently, the current passes along the fish from head to tail. The electric organs of these fish are really altered muscles and like all muscles are apt to tire, so they are not able to generate electricity for very long. People in some parts of South America who value the electric eel as food, take advantage of this fact by driving horses into the water against which the fish discharge their electricity. The horses are less affected than a man would be, and when the electric eels have exhausted themselves, they can be caught without danger.<br>The electric catfish of the Nile and of other African fresh waters has a different system again by which current passes over the whole body from the tail to the head. The shock given by this arrangement is not so strong as the other two, but is none the less unpleasant. The electric catfish is a slow, lazy fish, fond of gloomy places and grows to about 1 metre long; it is eaten by the Arabs in some areas.<br>The power of producing electricity may serve these fish both for defence and attack. If a large enemy attacks, the shock will drive it away; but it appears that the catfish and the electric eel use their current most often against smaller fish, stunning them so that they can easily be overpowered.<br>Which of the following can produce the strongest shock？

A. The electric eel.
B. The electric catfish.
C. The newly-born electric torpedoes.
D. The fully-grown electric ray.

Part A<br>Directions: Read the following texts and answer the questions which accompany them by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.<br>In recent years, there has been a steady assault on salt from the doctors: Salt is bad for you—regardless of your health. Politicians also got on board. "There is a direct relationship, " US congressman Neal Smith noted, "between the amount of sodium a person consumes and heart disease, circulatory disorders, stroke and even early death. "<br>Frightening, if true! But many doctors and medical researchers are now beginning to feel the salt scare has gone too far. "All this hue and cry about eating salt is unnecessary, " Dr. Dustan insists. "For most of us it probably doesn't make much difference how much salt we eat. " Dustan's most recent short-term study of 150 people showed that those with normal blood pressure underwent no change at all when placed on an extremely low-salt diet, or later when salt was reintroduced. Of the hypertensive subjects, however, half of those on the low-salt diet did experience a drop in blood pressure, which returned to its previous level when salt was reintroduced.<br>"An adequate to somewhat excessive salt intake has probably saved many more lives than it has cost in the general population, "notes Dr. John H. Laragh. "So a recommendation that the whole population should avoid salt makes no sense. "<br>Medical experts agree that everyone should practice reasonable "moderation" in salt consumption. For an average person, a moderate amount might run from four to ten grams a day, or roughly 1/2 to 1/3 of a teaspoon. The e-quivalent of one to two grams of this salt allowance would come from the natural sodium in food. The rest would be added in processing, preparation or at the table.<br>Those with kidney, liver or heart problems may have to limit dietary salt, if their doctor advises. But even the very vocal "low salt" exponent, Dr. Arthur Hull Hayes, Jr. admits that "We do not know whether increased sodium consumption causes hypertension. " In fact, there is increasing scientific evidence that other factors may be involved: deficiencies in calcium, potassium, perhaps magnesium; obesity(much more dangerous than sodium); genetic predis-potition; stress.<br>"It is not your enemy, " says Dr. Laragh, "Salt is the No. 1 natural component of all human tissue, and the idea that you don't need it is wrong. Unless your doctor has proven that you have a salt-related health problem, there is no reason to give it up. "<br>According to some doctors and politicians, the amount of salt consumed______.

A. exhibits as an aggravating factor to people in poor health
B. cures diseases such as stroke and circulatory disorders
C. correlates highly with some diseases
D. is irrelevant to people suffering from heart disease

Part C<br>Directions: Answer questions 71-80 by referring to the following games.<br>Note: Answer each question by choosing A, B or C and mark it on ANSWER SHEET 1. Some choices may be required more than once.<br>A = Hydro power B = Nuclear power C = Solar power D = Wind power Which power(power' s)...<br>was developed to provide electricity for satellites at the beginning？ 71.______<br>can promote tourism development？ 72.______<br>may give off dangerous radioactive pollution into the air？ 73.______<br>may affect the downstream water quality and have an impact on plant life？ 74.______<br>stations can increase to full power very quickly？ 75.______<br>produces small amounts of waste？ 76.______<br>is a good method of supplying energy to remote areas？ 77.______<br>provides around 20% of the world's electricity？ 78.______<br>can be used to heat your water at home instead of so much gas or electricity？ 79.______<br>is not renewable？ 80.______<br>A<br>Hydro power<br>Introduction<br>We have used running water as an energy source for thousands of years, mainly to grind corn.<br>The first house in the world to be lit by hydroelectricity was Cragside House, in Northumberland, England, in 1878. In 1882 on the Fox River, in the USA, hydroelectricity produced enough power to light two paper mills and a house.<br>Nowadays there are many hydro-electric power stations, providing around 20% of the world' s electricity. The name comes from "hydro" , the Greek word for water.<br>How it works<br>A dam is built to trap water, usually in a valley where there is an existing lake.<br>Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators.<br>Advantages<br>Once the dam is built, the energy is virtually free.<br>No waste or pollution produced.<br>Much more reliable than wind, solar or wave power.<br>Water can be stored above the dam ready to cope with peaks in demand.<br>Hydro-electric power stations can increase to full power very quickly, unlike other power stations.<br>Disadvantages<br>The dams are very expensive to build.<br>Building a large dam will flood a very large area upstream, causing problems for animals that used to live there.<br>Finding a suitable site can be difficult—the impact on residents and the environment may be unacceptable.<br>Water quality and quantity downstream can be affected, which can have an impact on plant life.<br>Is it renewable？<br>Hydro-electric power is renewable.<br>The Sun provides the water by evaporation from the sea, and will keep on doing so.<br>B<br>Nuclear power<br>Introduction<br>Nuclear power is generated using Uranium, which is a metal mined in various parts of the world.<br>The first large-scale nuclear power station opened at Calder Hall in Cambria, England, in 1956.<br>Some military ships and submarines have nuclear power plants for engines.<br>How it works<br>Nuclear power stations work in pretty much the same way as fossil fuel-burning stations, except that a " chain reaction" inside a nuclear reactor makes the heat instead.<br>The reactor uses Uranium rods as fuel, and the heat is generated by nuclear fission. Neutrons smash into the nucleus

听力原文： The human nose has given to the languages of the world many interest-ing expressions. Of course, this is not surprising. Without the nose, we could not breathe nor smell. It is a part of the face that gives a person special character. Cyrano de Bergerac said that a large nose showed a great man courageous , courteous, manly, and intellectual.<br>A famous woman poet wished that she had two noses to smell a rose! Blaise Pascal, a French philosopher, made an interesting comment about Cleopatra's nose. If it had been shorter, he said, it would have changed the whole face of the world!<br>Historically, man's nose has had a principal role in his imagination. Man has referred to the nose in many ways to express his emotions. Expressions concerning the nose refer to human weakness; anger, pride Jealousy and revenge.<br>In English there are a number of phrases about the nose. For example, to hold up one's nose expresses a basic human feeling—pride. People can hold up their noses at people, things, and places.<br>The phrase, to be led around by the nose, shows man's weakness. A person who is led around by the nose lets other people control him. On the other hand, a person who follows his nose lets his instinct guide him.<br>For the human emotion of rejection, the phrase to have one's nose put out of joint is very descriptive. The expression applies to persons who have been turned aside because of a rival. Their pride is hurt and they feel rejected. This expression is not new. It was used by Erasmus in 1542.<br>This is only a sampling of expressions in English dealing with the nose. There are a number of others. However, it should be as plain as the nose on your face that the nose is more than an organ for breathing and smelling!<br>What is this passage mainly about？

A. The human nose as an organ for breathing and smelling.
B. The nose providing us with various expressions.
C. A woman poet's wish to have two noses.
D. Interesting comments made on Cleopatra's nose.

Why are horses used to catch the electric eels？

A. To frighten the eels.
B. To exhaust the eels.
C. To attract the eels.
D. To stir the water.

Strokes may sometimes destroy all of the mirror image.

A. True
B. Fasle

Part B<br>Directions: You will hear 3 conversations or talks and you must answer the questions by choosing A, B, C or D. You will hear the recording ONLY ONCE.<br>听力原文：M: Now, I' d like to say that I think that this government proposing to build more nuclear power stations in this country is really being stupid. The point about nuclear power is that we haven't learnt to do away with the waste. We haven't learnt to cope with the waste from it yet.<br>W: Well, I sometimes think that, you know, they've got an impossible job. I mean all the impression I get is that there is no alternative... well, that's the impression I get.<br>M: No, no, no I... I don't agree with that at all. There are plenty of alternatives. There's the sun... solar power... that is a source that is always there, we always have it.<br>W: I don't... I don't quite see what you' re getting at actually, solar power, what's that？<br>M: Well, the heat from the sun, it can be used in solar panels on the tops of houses for heating, storing up power to heat water and to heat the houses , you know, some solar panels are in operation already and they are saving money...<br>W: That's a good point actually, but is it really viable, that, I mean because I'd...<br>M: Sorry it must be j And the one great advantage is that I can see, if the government set up small units to build solar panels and to install them, it would be creating employment which would improve the unemployment situation and bring terrific advantages.<br>W: I have heard that in England, I mean, there's not enough sun, is there？ For, I mean, solar panels here？<br>M: Yes, well, that's not quite true. I... there is quite a bit of sun... you may not feel the actual heat of it on some occasions.<br>W: No, you are right there!<br>M: But the light power from the sun will.<br>What does the man think of the government's present proposal about building more power stations in the country？

A. It's a dangerous proposal.
B. It's a stupid proposal.
C. It's an advantageous proposal.
D. It's a viable proposal.