Paragraph 2_______A.Man should be cautious in che
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Paragraph 2_______
A.Man should be cautious in chemical use.
B.It takes generations for mankind to adapt themselves to the chemicals.
C.Chemicals are human’s invention
D.Human’s power increases and has changed its character in the past quarter century.
E.The new change in the relationship between earth and its creature一human’s power playing a greater role in changing the world
F. Modern world gives no time for nature to adjust to human.
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答案：D
本题考查的是对所读材料大意与主旨的掌握。第二段第一句是本段的主旨句："During the past 25 years,this power has not only become increasingly great but it has changed in character.”在过去的25年中，这种力量不仅日趋强大，而且其性质也发生了变化。其中，“这种力量指的是人改造自然的力量”，这与选项D中提到的：" Human’s power increases and has changed its character in the past quarter century.”意思相符。所以D是答案。