I'm so _________ of the issue that I fail to understand the passage on it. （ignore; 请用所给单词的合适形式填空。)

Which of the following is the major concern of the passage about a student’s needs?

A. Individualism and cooperation.

B. Academic success and independent thinking.

C. Socialization and feeling of competence.

D. Intelligence and respect.

Which of the following statements is supported by the passage?

A．As productivity rises, a greater amount of labor per dollar of national product can be expected.

B．Unemployment falls when production expands faster than labor force

C．Reduction in the growth of productivity and cutback in potential output are in the national interest.

D．The long-term rate of growth in our economy, if continued into the future, will eventually decrease our unemployment rate, all other factors remaining constant.

Which one of the following most accurately expresses the main point of the passage?

A．Koala populations have dropped sharply in the past century due to threat of dogs and highways, lost of habitat and spread of diseases.

B．Since disease is a huge issue that causes the extinction of Koalas, the research developing a chlamydia vaccine is urgent and critical.

C．The efforts to save Koala populations that are becoming extinct because of different reasons require involvement from both government and grassroots groups.

D．In order for koalas and humans to coexist in urban environments, developers should get on board with koala sensitive designs.

Which of the following is the major concern of the passage about a student’s needs?

A.Individualism and cooperation．．

B.Academic Success and independent thinkin9．

C.Socialization and feeling of competence．

D.Intelligence and respect．

Which of the following best describes the organization of the whole passage?

A．The author tells his story of learning Arabic chronologically.

B．By contrasting different means of teaching by Mr. Beheit and Mr. Ahmed, the author reveals his joys and sorrows on the way of learning a foreign tongue.

C．The author describes possible difficulties of learning a tough foreign language before he illustrates how he achieves success in doing so.

D．The author gives out his outlook of learning a foreign tongue through details of his own pains and gains in the learning process.

The passage supplies information for answering which of the following questions?

A．Have literary critics ignored the social criticism inherent in the works of Chekhov and Chaucer?

B．Does the author believe that Woolf is solely an introspective and visionary novelist?

C．What arc the social causes with which Woolf shows herself to be sympathetic in her writings?

D．Was D.H. Lawrence as concerned as Woolf was with creating realistic settings for his novels?

Which of these statements is best supported from the passage in Paragraph 5?

A．It is best to start writing when you are young.

B．Earning a living from writing requires painstaking effort.

C．The decision to become a writer was carefully considered.

D．The decision to become a writer was not carefully considered.

Which of the following statements about the SBA program can be inferred from the passage?

A．The maximum term for loans made to recipient businesses was 15 years.

B．Business loans were considered to be more useful to recipient businesses than was management and technical assistance.

C．The anticipated failure rate for recipient businesses was significantly lower than the rate that actually resulted.

D．Recipient businesses were encouraged to relocate to areas more favorable for business development.

E．The capitalization needs of recipient businesses were assessed and then provided for adequately.

Though it is a mere I to 3 percent of the population, the upper class possesses at least 25 percent of the nation's wealth. This class has two segments: upper-upper and lower-upper. Basically, the upper-upper class is the "old rich"--families that have been wealthy for several generations--an aristocracy of birth and wealth. Their names are in the Social Register, a listing of acceptable members of high society. A few are known across the nation, such as the Rockefellers, Roosevelts, and Vanderbilts. Most are not visible to the public. They live in grand seclusion, drawing their income from the investment of their inherited wealth. In contrast, the lower-upper class is the "new rich". Although they may be wealthier than some of the old rich, the new rich have hustled to make their money like everybody else beneath their class. Thus their prestige is generally lower than that of the old rich, who have not found it necessary to lift a finger to make their money, and who tend to thumb their noses at the new rich.

However its wealth is acquired, the upper class is very, very rich. Thy have enough money and leisure time to cultivate an interest in the arts and to collect rare books, paintings, and sculpture. They generally live in exclusive areas, belong to exclusive social clubs, rub elbows with each other, and marry their own kind—all of which keeps them so aloof from the masses that they have been called out-of-sight class (Fussel, 1983). More than any other class, they tend to be conscious of being members of a class. They also command an enormous amount of power and influence here and aboard, as they hold many top government positions, run the Council on Foreign Relations, and control multinational corporations. Their actions affect the lives of millions.

ACID RAIN: What's the Solution?

One of the wildest regions in the U.S., far from civilization, is the Adirondack area of northern New York State. For years this isolated spot has had the reputation of being one of best fishing spots in the U.S.

As a boy 30 years ago, Bill Marleau first through the Adirondack wilderness near his small cabin on Woods Lake. Thousands of sportsmen have stayed at his father's lodge nearby.

But now Bill's 134 hectares (335 acres) of lakefront land have only scenic value. Gone are those huge trout that used to swim in the turbulent, nutrientrich water a short distance from his doorstep. Gone from the cool nights are the sounds of thousands of frogs and toads.

And gone are the birds that once fed on those water creatures.

Occasionally Bill sees a lone fisherman fruitlessly cast his bait into the empty waters of old lake. "I just don't have the heart to tell," he said. "This old lake's dead. It was killed years ago by acid rain." What is acid rain?

Acid rain is a popular term for precipitation in the form. of rain, sleet, snow or hail that is more acidic than normal. Acid rain is produced when atmospheric moisture combines with pollutants from power plants, factories and automobiles.

When fossil fuels such as coal and oil are burned, sulfur dioxide and nitrogen dioxide are produced. These two gases react with the water and oxygen in the atmosphere to form. droplets of weak sulfur and nitric acid.

Carried by prevailing winds and weather conditions, clouds containing these droplets travel hundreds, sometimes thousands, of kilometers from the source of the pollutants. Recently scientists found that acid rain now affects huge areas of the North Hemisphere.

Power plants and factories in the heavily industrialized regions of Ohio and Indiana are believed to be the source of the acid rain that killed Woods Lake along with hundreds of others in New York State and eastern Canada. Acid haze over Alaska is believed to come all the way from Japan. And precipitation as acid as vinegar that falls on Scotland and Scandinavia probably originates in England.

How Acidity Is Measured

Scientists measure the acidity of rain in pH units. A pH scale from 0 to 14 is used. Depending upon its chemical composition, a solution is either acidic, alkaline (basic), or neutral. Distilled water, which has a pH of 7, is neutral. Substance with pH values less than 7 are acidic, while those over 7 are alkaline.

Normal rain water with a pH of 5.6 is slightly acidic. But after reacting with industrial pollutants, particularly sulfur dioxide, the pH of rain quickly drops.

When acid rain falls to Earth, much of it ends up in lakes and ponds. In addition to failing directly into a lake, acid rains runs off land into streams and rivers that eventually flow into lakes and ponds. Once acid rain gets into them, its effects can be deadly.

Studies started in 1975 in the Adirondacks indicate that salamanders and frogs are the first to die when the pH is lowered. Normally the pH of a lake is 8,0 slightly alkaline. When the pH drops to 7, the eggs of salamanders and frogs fail to hatch. At pH 6.6 snails begin to die.

Bacteria that decompose leaf matter die too, and the leaf matter collects on the lake bottom. As the acidity continues to drop, ail the major food chains in the lake become affected. In time all the fish die.

Eventually primitive, oxygenconsuming plants nearly choke out all other aquatic greenery. Algae and fungal growth that thrive in an acidic environment move in and cover the entire bottom of the now destroyed lake.

Looking like blue vinegar, the lake is now an entirely changed ecosystem. It contains no life expect the fungal and algal growth and a few surfacedwelling water bugs.

&n

A．Y

B．N

C．NG