If ambition is to be well regarded, the rewards of ambition--wealth, distinction, control over one’’s destiny--must be deemed worthy of the sacrifices made on ambition’’s behalf. If the tradition of ambition is to have vitality, it must be widely shared; and it especially must be highly regarded by people who are themselves admired, the educated not least among them. In an odd way, however, it is the educated who have claimed to have given up on ambition as an ideal. What is odd is that they have perhaps most benefited from ambition--if not always their own then that of their parents and grandparents. There is a heavy note of hypocrisy in this, a case of closing the barn door after the horses have escaped--with the educated themselves riding on them. 　　Certainly people do not seem less interested in success and its signs now than formerly. Summer homes, European travel, BMWs--the locations, place names and name brands may change, but such items do not seem less in demand today than a decade or two years ago. What has happened is that people cannot confess fully to their dreams, as easily and openly as once they could ,lest they be thought pushing, acquisitive and vulgar. Instead, we are treated to fine hypocritical spectacles, which now more than ever seem in ample supply: the critic of American materialism with a Southampton summer home; the publisher of radical books who takes his meals in three-star restaurants; the journalist advocating participatory democracy in all phases of life, whose own children are enrolled in private schools. For such people and many more perhaps not so exceptional, the proper formulation is," Succeed at all costs but avoid appearing ambitious." 　　The attacks on ambition are many and come from various angles ;its public defenders are few and unimpressive, where they are not extremely unattractive. As a result, the support for ambition as a healthy impulse, a quality to be admired and fixed in the mind of the young, is probably lower than it has ever been in the United States. This does not mean that ambition is at an end, that people no longer feel its stirrings and promptings, but only that, no longer openly honored, it is less openly professed. Consequences follow from this, of course, some of which are that ambition is driven underground, or made sly. Such then, is the way things stand: on the left angry critics, on the right stupid supporters, and in the middle, as usual, the majority of earnest people trying to get on in life. From the last paragraph the conclusion can be drawn that ambition should be maintained ___________.

A:secretly and vigorously B:openly and enthusiastically C:easily and momentarily D:verbally and spiritually

When aluminum was first produced about a hundred and fifty years ago, it was so difficult to separate from the ores in which it was found that its price was higher than that of gold. The price remained high until a new process was discovered for refining the metal with the aid of electricity approximately three quarters of a century later. The new method was so much cheaper that aluminum became practical for many purposes, one of which was making pots and pans.
Aluminum is lightweight, rustproof and easily shaped into different forms. By mixing it with other metals, scientists have been able to produce a variety of alloys, some of which have the strength of steel but weigh only one third as much.
Today, the uses of aluminum are innumerable. Perhaps its most important use is in transportation. Aluminum is found in the engine of automobiles, in the hulls of boats. It is also used in many parts of airplanes. In fact, the huge "airbus" planes would probably never have been produced if aluminum did not exist. By making vehicles lighter in weight aluminum has greatly reduced the amount of fuel needed to move them. Aluminum is also being used extensively in the building industry in some countries.
Since aluminum is such a versatile(多用的) metal, it is fortunate that bauxite(铝土矿), which is one of its chief sources, is also one of the earth’s most plentiful substances. As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal.

A:lightweight, rustproof but not easily shaped into different forms B:heavyweight, rustproof and easily shaped into different forms C:lightweight, rustproof and easily shaped into different forms D:lightweight and easily shaped into different forms but it is easy to become rusty

Everyone has got two personalities-the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake. Because you can control yourself. But when you’re asleep, your sleeping position shows the real you. In a normal night, of course, people often change their position. The important position is the one you go to sleep in.
If you go to sleep on your back, you’re a very open person. You usually believe people and you accept new things or new ideas easily. You don’t like to make people sad, so you never express your real feeling. You’re quite shy.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you always easily become sad. You usually live for today not tomorrow. This means that you enjoy having a good time.
If you sleep curled up, you are probably a very nervous person. You have a low opinion of yourself. You’re shy and don’t like meeting people. You prefer to be on your own. You’re easily hurt.
If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weaknesses. You’re usually careful. You don’t often get sad. You always say what you think even if it makes other people unhappy.
If you go to sleep on your back, what kind of person are you

A:An open person. B:Accept new things easily. C:Like to make people sad. D:Both A and

When aluminum was first produced about a hundred and fifty years ago, it was so difficult to separate from the ores in which it was found that its price was higher than that of gold. The price remained high until a new process was discovered for refining the metal with the aid of electricity approximately three quarters of a century later. The new method was so much cheaper that aluminum became practical for many purposes, one of which was making pots and pans.
Aluminum is lightweight, rustproof and easily shaped into different forms. By mixing it with other metals, scientists have been able to produce a variety of alloys, some of which have the strength of steel but weigh only one third as much.
Today, the uses of aluminum are innumerable. Perhaps its most important use is in transportation. Aluminum is found in the engine of automobiles, in the hulls of boats. It is also used in many parts of airplanes. In fact, the huge "airbus" planes would probably never have been produced if aluminum did not exist. By making vehicles lighter in weight aluminum has greatly reduced the amount of fuel needed to move them. Aluminum is also being used extensively in the building industry in some countries.
Since aluminum is such a versatile(多用的) metal, it is fortunate that bauxite(铝土矿), which is one of its chief sources, is also one of the earth’s most plentiful substances. As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal.

A:lightweight, rustproof but not easily shaped into different forms B:heavyweight, rustproof and easily shaped into different forms C:lightweight, rustproof and easily shaped into different forms D:lightweight and easily shaped into different forms but it is easy to become rusty

Everyone has got two personalities-the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake. Because you can control yourself. But when you’re asleep, your sleeping position shows the real you. In a normal night, of course, people often change their position. The important position is the one you go to sleep in.
If you go to sleep on your back, you’re a very open person. You usually believe people and you accept new things or new ideas easily. You don’t like to make people sad, so you never express your real feeling. You’re quite shy.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you always easily become sad. You usually live for today not tomorrow. This means that you enjoy having a good time.
If you sleep curled up, you are probably a very nervous person. You have a low opinion of yourself. You’re shy and don’t like meeting people. You prefer to be on your own. You’re easily hurt.
If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weaknesses. You’re usually careful. You don’t often get sad. You always say what you think even if it makes other people unhappy.
If you go to sleep on your back, what kind of person are you

A:An open person. B:Accept new things easily. C:Like to make people sad. D:Both A and

Unfortunately, the new swine flu virus can be transmitted between humans. It is not clear yet how easily it is transmitted, nor how it is transmitted. Almost surely it is transmitted by sneezing and coughing, and by skin-to-skin contact with an infected person.
How is the swine flu virus transmitted according to the passage

A:It is very easily transmitted from person to person. B:It is not quite sure how it is transmitted yet. C:It is surely transmitted by sneezing or coughing. D:It is surely transmitted by skin-to-skin contact.