分析 科學家認為,人類海上活動導致的噪音污染對海洋生物的健康和行為產(chǎn)生了巨大的影響,甚至威脅到了他們的生存.雖然科學家不知道什么樣的噪音對海洋生物有害,然而許多科學家懷疑噪聲的危害要遠遠大于他們想象的程度,因此他們要努力去防止噪聲對于海洋動物的危害.
解答 29--31 BAD
29.B 推理判斷題.根據(jù)第三段They found that powerful underwater explosions were causing whales in the area to lose their hearing.This seriously affected the whales'ability to exchange information and find their way可知,這些海洋噪音影響到了鯨魚的聽力和導航能力,即:一定程度的噪音可能傷害鯨魚.故選B.
30.A 細節(jié)理解題.根據(jù)四段They say such a limit would mean an end to important industrial and scientific research.可知,科學家們認為對于分貝的控制會影響一些工業(yè)和科學研究工作,所以A選項正確.
31.D 細節(jié)理解題:從最后一段的句子:They want to prevent noises from harming creatures in the ocean.可知,他們想要阻止噪音對于海洋生物的危害.故選D.
點評 高考中選用的科技文往往反映的是當今人類最先進的科技水平和最新的科研成果.我們閱讀它的過程其實就是學習科學知識,掌握科技信息的過程.然后,理解文章,分析文章,以閱讀材料所提供的科學事實為依據(jù),同時得出的結(jié)論還應(yīng)符合基本的科普常識,在細心對照基礎(chǔ)上,經(jīng)過一番分析、綜合,然后就要根據(jù)題目要求對選項作出正確判斷了,這些判斷包括選項的表達是否符合原文的意思,對概念,文句的理解是否正確,對要點歸納是否全面等,從而排除錯誤選項,選擇最合適的答案.
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