分析 本文属于科普说明文阅读,科学家想方设法保存地球上存在的冰块,并计划在南极洲建立一个地下室储存冰块.文章中介绍了科学家要储存冰块的原因和目的.
解答 28-31 ADBD
28.A.细节理解题.根据第三段三、四句Trapped air bubbles (气泡) contain samples of the atmosphere thatexisted when that ice was formed.Ice is a record of climate By examining ice.可知研究冰块可以让我们了解很多与气候有关的信息.故A正确.
29.D.推理判断题.根据第三段三、四、五句Trapped air bubbles (气泡) contain samples of the atmospherethat existed when that ice was formed.Ice is a record of climate By examining ice.we know carbondioxide in the atmosphere is higher now than in the last three million years.可知这些都是人们储存冰的原因,研究冰块,我们可以了解很多过去的事情,并预测未来的事情.所以文章中提到这些例子是为了说明储存冰块的必要性.故D正确.
30.B.推理判断题.根据第一段最后一句They've decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt.可知因为全球变暖是,世界其他地方的冰都在融化,科学家把南极洲用来储存冰块,就是把它当成冰箱在使用.故B正确.
31.D.推理判断题.根据第一段:They've decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt可知科学家认为在南极洲储存冰是一个可靠的办法;故选D.
点评 学生需要认真阅读原文,把握文章大意,对文章脉络有整体的了解,能仔细查找文中细节,并能根据文章内容进行合理的推测判断.
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