2. 看到similar就说明第二段说的和第一段一样。
3. But转折是重点
Many of the changes to Earth that concern scientists have the potential to rob the planet of its biological richness. The destruction of Earth's ozone layer (臭氧层), for example, could contribute to the general process of impoverishment by allowing ultra-violet rays to harm plants and animals. And global warming could wipe out species unable to quickly adapt to changing climates. Clearly, protecting will come only through coordinated international efforts to control human population, stabilize the composition of the atmosphere, and preserve intact Earth's complex web life(小并列不重要).
36.Why does the author say that the protection of endangered species is a highly controversial issue?
A) Because people can't agree as to what species to protect.
B) Because it is difficult to find an effective way to protect such species.
C) Because it affects the interests of certain groups of people.
D) Because it is a major problem involving a series of legal procedures.
注：细节题。第一段economic interests
●表示绝对的词(灭绝师太)--出现在文章中，是非常重要的出题点;如果出现在选项中，很可能是不对的。
(灭)全无：none-nothing-never-seldom-hardly-little-few-prevent-exclude-neither…nor
(绝)全有：all- absolutely-every-full-either…or…
唯一：only-exactly- best-most
37.According to the passage, the preservation of rain forests ________.
A) may hamper a developing country in its fight against poverty.
B) benefits developed countries rather than developing countries.
C) should take priority over the control of human population.
D) will help improve the living conditions in developing countries.(反：和谐了)
注：细节题，对应文章第二段。举例前那句话更重要，只要表达出"和经济利益冲突"就对了。多看到最后的文章，则可能会选C，所以尽量少看。
38.According to the passage, cutting tress to grow more food _______.
A) will widen the gap between the developed and the developing countries.
B) is but a short-term relief to the food problem.
C) can hardly alleviate the shortage of food.
D) proves to be an effective way out for impoverished nations.
注：对应文章第二段。Short-term对应temporarily，relief对应avoid。
39.Among"humanity's current problems" (Line 6, Para. 3), the chief concern of the scientists
is _______.
A) the impoverishment of developing countries.(跨段信息，错)
B) the explosion of the human population.
C) the reduction of biological diversity.
D) the effect of global warming.
注：第三段。C选项中reduction对应rob，diversity对应richness。
40.The author's purpose in writing this passage is ________.
A) to describe the difficulties in solving humanity's current problems.(表层)
B) to present the different views on humanity's current problems.
C) to analyze the contradiction between countries in dealing with humanity's current
problems.
D) to point out that humanity's current problems can only(原文有) be solved through the cooperation of nations.
注：看最后一句话，cooperation of nations 对应coordinated international efforts。
1. 例子如何处理：重要的一定看明白，不重要的不看
2. 哪些重要(转折、例子前后的话、灭绝的东西)，哪些不重要(例子内容、小的并列<如水果的例子>)
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