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An enormous number of forestry decisions involve ______.
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更多“An enormous number of forestry decisions involve ______.”相关的问题
第1题
The number of potential users is enormous and we should pay more attention to it.
A.immense
B.normal
C.strange
D.little
第2题
Chinese Dialects(方言)
1．The enormous differences in Chinese dialects have been a continuing problem ever since China became an empire in 221 B．C．, and it is one big reason why the country has remained impoverished(贫穷)． Of the 600 million people who call themselves Chinese, all but a very small number speak Chinese．But the dialects vary so widely that the speech of Peking, for example, is as different from the speech o{ Canton as English is from German.
2．There is, to be sure, only one written language for all China, but it bears no phonetic(语言的)relationship to any of the spoken dialects．Moreover, it has so many symbols that only a tiny portion of the population has ever mastered it.
3．As a result, most Chinese have been isolated for centuries from a free flow of ideas and from the economic progress that such a flow produces．Many dynasties tried with little success to break down the wall．After recognizing the importance of having a literate people for working in a technological world and for developing an effective propaganda(宣传)machine, the present government is putting everything it has into tackling the language problem． But the obstacles are so formidable(难以应付的)that the results cannot yet be predicted.
4．At the heart the problem is the dialects．The dialects prevented the evolution of a single written language based on phonetics．Instead, the Chinese were forced to develop a system that has no relation to sound, and they have clung to it for more than 3,000 years.When this system is applied to a whole language, it results in an overwhelming number of symbols.
5．There are about 50,000 entries in a Chinese dictionary not counting the compounds(复合词)．In order to be literate, a Chinese must learn 6,000; to be moderately educated,12,000．An English-speaking child, having to conquer only a twenty-six-letter alphabet,has usually learned to read by the time he begins the third grade．A Chinese child needs at least five more years of elementary learning; in the seventh grade, he can barely read a Chinese newspaper.
A．Dealing with the Problem of Various Dialects
B．Difficulties in Learning Chinese
C．Features of Chinese Dialects
D．Differences in Chinese Dialects
E．Dialects as Heart of the Problem
F．Ways of the Government to Tackle the Problem
第 23 题 Paragraph 1____。
第3题
What is said about the earthquakes that happened in China？
A．Altogether 1,480,000 people were killed in the earthquakes.
B．In the past, earthquakes happened twice in China.
C．China is within the "ring of fire".
D．In the history, China had two worst earthquakes that took an enormous number of human lives.
第4题
What is the author's attitude towards science？
A．He is depressed because of the ignorance of scientists.
B．He is delighted because of the enormous scientific findings.
C．He is doubtful because of the enormous difficulties in scientific research.
D．He is confident though he is aware of the enormous difficulties in scientific research.
第5题
What is the most striking feature of Shakespeare's works mentioned by the author？
A．Shakespeare used an enormous number of words of the English language.
B．Shakespeare expressed his appreciation of the richness of the English language.
C．Shakespeare studied the various usages of the English language.
D．Shakespeare tried to maintain the original meaning of many English words.
第6题
33 What is the most striking feature of Shakespeare's works mentioned by the author？
A Shakespeare used an enormous number of words of the English language.
B Shakespeare expressed his appreciation of the richness of the English language.
C Shakespeare studied the various usages of the English language.
D Shakespeare tried to maintain the original meaning of many English words.
第7题
根据下列材料请回答 47～56 题：
When we think of green buildings, we tend to think of new ones – the kind of high-tech, solar-paneled masterpieces that make the covers of architecture magazines. But the U.S. has more than 100 million existing homes, and it would be __47__ wasteful to tear them all down and __48__ them with greener versions. An enormous amount of energy and resources went into the construction of those houses. And it would take an average of 65 years for the __49__ carbon emissions from a new energy-efficient home to make up for the resources lost by destroying an old one. So in the broadest __50__, the greenest home is the one that has already been built. But at the same time, nearly half of U. S. carbon emissions come from heating, cooling and __51__ our homes, offices and other buildings. "You can't deal with climate change without dealing with existing buildings," says Richard Moe, the president of the National Trust.
With some __52__, the oldest homes tend to be the least energy-efficient. Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that __53__ over time and let in more outside air.
Fortunately, there are a __54__ number of relatively simple changes that can green older homes, from __55__ ones like Lincoln's Cottage to your own postwar home. And efficiency upgrades (升级) can save more than just the earth; they can help __56__ property owners from rising power costs.
注意：此部分试题请在答题卡2上作答。
A．vast
B．supplying
C．shifted
D．sense
E) replace
F) reduced
G) protect
H) powering
I) incredibly
J) historic
K) expand
L) exceptions
M) doubtful
N) clumsy
O) accommodations
第 47 题 请在（47）处填上最佳答案。
第8题
Population Viability Analysis
Part A
To make political decisions about the extent and type of forestry in a region it is important to understand tile consequences of those decisions. One tool for assessing the impact of forestry on the ecosystem is Population Viability Analysis (PVA). This is a tool for predicting the probability that a species will become extinct in a particular region over a specific period. It has been successfully used in the United States to provide input into resource exploitation decisions and assist wildlife managers and there is now enormous potential for using population viability to assist wildlife management in Australia's forests.
A species becomes extinct when the last individuals dies. This observation is a useful starting point for any discussion of extinction as it highlights the role of luck and chance in the extinction process. To make a prediction about extinction we need to understand the princesses that can contribute to it and these fail into four broad categories which are discussed below.
Part B
A
Early attempts to predict population viability, were based on demographic uncertainty whether an individual survives from one year to time next will largely be matter of chance. Some pairs may produce several young in a single year while others may produce none in that same year. Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinctions even if, on average, the population size should increase. Taking only this uncertainty of ability to reproduce into account, extinction is unlikely if the number of individuals in a population is above about 50 and the population is growing.
B
Small populations cannot avoid a certain amount of inbreeding. This is particularly true if there is a very small number of one sex. For example, if there are only 20 individuals of a species and only one is a male, all future individuals in the species must be descended from that one male. For most animal species such individuals are leas likely to survive and reproduce. Inbreeding increases the chance of extinction.
C
Variation within a species is the raw material upon which natural selection acts. Without genetic variability a species lacks the capacity to evolve and cannot adapt to changes in its environment or to new predators and new diseases. The loss of genetic diversity associated with reductions in population size will contribute to the likelihood of extinction.
D
Recent research has shown that other factors need to be considered. Australia's environment fluctuates enormously from year to year. These fluctuations add yet another degree of uncertainty to the survival of many species. Catastrophes such as fire, flood, drought or epidemic may reduce population sizes to a small fraction of their average level. When allowance is made for these two additional elements of uncertainty the population size necessary to be confident of persistence for a few hundred years may increase to several thousand.
Part C
Beside these processes we need to bear in mind the distribution of a population. A species that occurs in five isolated places each containing 20 individual will not have the same probabi
A．Y
B．N
C．NG
第9题
Experts have long recognized that this discouraging problem has multiple causes. At the very least it is a problem that involves three factors: the driver, the vehicle and the roadway. If all drivers exercised good judgment at all times, there would be few accidents. But this is rather like saying that if all people were honest, there would be no crime. Improved design has helped to make highways much safer. But the total of accidents continues to rise because of human failure and an enormous increase in the number of automobiles on the road. Attention is now turning increasingly to the third factor of the accident, that is, the car itself. Since people assume that the accidents are bound to occur, they want to know how cars can be built better to protect the drivers.
What does the speaker think are the causes of automobile accidents？
A．The causes are very complicated.
B．The causes are obvious.
C．The causes are familiar.
D．The causes are not well understood.
第10题
Chinese Dialects (方言)
The enormous differences in Chinese dialects have been a continuing problem ever since China became an empire in 221 B. C. , and it is one big reason why the country has remained impoverished (贫穷). Of the 600 million people who call themselves Chinese, all but a very small number speak Chinese. But the dialects vary so widely that the speech of Peking, for example, is as different from the speech of Canton as English is from German.
There is to be sure, only one written language for all China, but it bears no phonetic(语音的)relationship to any of the spoken dialects. Moreover, it has so many symbols that only a tiny portion of the population has ever mastered it.
As a result, most Chinese have been isolated for centuries from a free flow of ideas and from the economic progress that such a flow produces. Many dynasties tried with little success to break down the wall. After recognizing the importance of having a literate people for working in a technological world and for developing an effective propaganda(宣传) machine, the present government is putting everything into tackling the language problem. But the obstacles are so formidable(难以应付的) that the results cannot yet be predicted.
At the heart the problem is the dialects. The dialects' prevented the evolution of a single written language based on phonetics. Instead, the Chinese were forced to develop a system that has no relation to sound, and they have clung to it for more than 3, 000 years. When this system is applied to a whole language, it results in an overwhelming number of symbols.
There are about 50, 000 entries in a Chinese dictionary not counting the compounds(复合词). In order to be literate, a Chinese must learn 6, 000; to be moderately educated, 12, 000. An English-speaking child, having to conquer only a twenty-six-letter alphabet, has usually learned to read by the time he begins the third grade. A Chinese child needs at least five more years of elementary learning; in the seventh grade, he can barely read a Chinese newspaper.
A. Dealing with the Problem of Various Dialects
B. Difficulties in Learning Chinese
C. Features of Chinese Dialects
D. Differences in Chinese Dialects
E. Dialects as Heart of the Problem
F. Ways of the Government to Tackle the Problem
Paragraph 1______
