题目内容
One reaction to all the concern about tropical deforestation is a blank stare that asks the question, "Since I don't live in the tropics, what does it have to do with me？" The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wash your hair, eat fruit and vegetables, drink soda, or drive a car, you can be certain that you are affected by the loss of tropical forests. Biologically, we are losing the richest regions on earth when, each minute, a piece of tropical forest the size of ten city blocks vanishes. As many as five million species of plants, animals and insects, 40 to 50 percent of all living things, live there, and are being irrevocably lost faster than they can be found and described. Their loss is incalculable.
Take medicine, for example. Fewer than one percent of tropical forest plants have been examined for their chemical compounds. Nonetheless, scientists have integrated a wealth of important plants into our everyday lives. The West African calabar bean is used to treat glaucoma, while the sankerfoot plant of India yields reserpine, essential for treating hypertension. A West African vine provides the basis for strophanthus, a heart medicine. Quinine, an alkaloid derived from boiling the bark of the cinchona tree, is used to prevent and treat malaria. Derivatives from the rosy periwinkle offer a 99 percent chance of remission for victims of lymphocytie leukemia, as well as a 59 percent chance of recovery from Hodgkin' s disease. In fact, of the 3,000 plant species in the world known to contain anti-cancer properties, 2,100 ate from the tropical rain forest. Then there is rubber. For many uses, only natural rubber from trees will do, synthetics are not good enough. Today, over half of the world' s commercial rubber is produced in Malaysia and Indonesia, while the Amazon' s rubber industry produces much of the world' s four million tons. Adding ammonia to rubber produces latex which is used for surgical gloves, balloons, adhesives, and foam rubber. Latex, plus a weak mixture of acid results in sheet rubber used for footwear and many sporting goods. Literally thousands of tropical plants are valuable for their industrial uses. Many provide fiber and canes for furniture, soundproofing and insulation. Palm oil, a product of tile tropics, brings to your table margarine, cooking oil, bakery products, and candles. Palm nut oil, from the seed kernel inside the fruit, is found in soap, candles, and mayonnaise. The sap from Amazonian copaiba trees, poured straight into a fuel tank, can power a truck. At present, 20 percent of Brazil ' s diesel fuel comes from this tree. An expanded use of this might reduce our dependency on irreplaceable fossil fuels.
Many scientists assert that deforestation contributes to the greenhouse effect, the heating of the earth from increased carbon dioxide in the atmosphere. As we destroy forests, we lose their ability to convert carbon dioxide into oxygen. Carbon dioxide levels could double within the next half-century, warming the earth by as much as 4.5 degrees. The result.'？ A partial melt-down of the polar ice caps, raising sea levels as much as 24 feet. A rise of 15 feet would threaten anyone living within 35 miles of the coast. Far-fetched？ Perhaps, but scientists warn that by the time we realize the severe effects of tropical deforestation, it will be 20 years too late. Can tropical deforestation affect our everyday lives？ We only have to look at the catalogued tropical forests and the abundance of wondrous products from which we benefit every day to know the answer. After all, the next discovery could be a cure for cancer or the common cold, or the answer to feeding the hungry, or fuelling our world for centuries to come.
According to the information contained in the article, tropical deforestation______.
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The Poet is he who, by suppressing a part of what exists, by adding stone imaginary touches to the picture, and by combining certain real circumstances that do not in fact happen together, completes and extends the work of nature. Thus the object of poetry is not to represent what is true, but to adorn it and to present to the mind some loftier image. Verse, regarded as the idem beauty of language, may be eminently poetical; but verse does not of itself constitute poetry.
I now proceed to inquire whether among the actions, the sentiments, and the opinions of democratic nations there are any which lead to a conception of the ideal, and which may for this reason be considered as natural sources of poetry.
It must, in the first place, be acknowledged that the taste for ideal beauty, and the pleasure derived from the expression of it, are never so intense or so diffused among a democratic as among an aristocratic people. In aristocratic nations it sometimes happens that the body acts as it were spontaneously, while the higher faculties are bound and burdened by repose. Among these nations the people will often display poetic tastes, and their fancy sometimes ranges beyond and above what surrounds them.
But in democracies the love of physical gratification, the notion of bettering one' s condition, the excitement of competition, the charm of anticipated success, are so many spurs to urge men onward in the active professions they have embraced, without allowing them to deviate for an instant from the track. The main stress of the faculties is to this point. The imagination is not extinct, but its chief function is to devise what may be useful and to represent what is real. The principle of equality not only diverts men from the description of ideal beauty; it also diminishes the number of objects to be described.
Aristocracy, by maintaining society in a fixed position, is favorable to the solidity and duration of positive religions as well as to the stability of political institutions. Not only does it keep the human mind within a certain sphere of belief, but it predisposes the mind to adopt one faith rather than another. An aristocratic people will always be prone to place intermediate powers between God and man. In this respect it may be said that the aristocratic element is favorable to poetry. When the universe is peopled with supernatural beings, not palpable to sense, but discovered by the mind, the imagination ranges freely; and poets, finding a thousand subjects to delineate, also find a countless audience to take an interest in their productions.
In democratic ages it sometimes happens, on the contrary, that men are as much afloat in matters of faith as they are in their laws. Skepticism then draws the imagination of poets back to earth and confines them to the real and visible world. Even when the principle of equality does not disturb religious conviction, it tends to simplify it and to divert attention from secondary agents, to fix it principally on the Supreme Power.
Aristocracy naturally leads the human mind to the contemplation of the past and fixes it there. Democracy, on the contrary, gives men a sort of instinctive distaste for what is ancient. In this respect aristocracy is far more favorable to poetry; for things commonly grow larger and more obscure as they are more remote, and for this twofold reason they are better suited to the delineation of the ideal.
Why does the author give his opinion of the definition of poetry？
Despite the fact that they were ______when they married, alter 30 years they live together
This discrepancy (was intriguing to) Alfred Wegener, a young geologist (working in) Greenland in 19He thought (the error) too great to be (accounted) easily.
【C17】______
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