分析 本文屬于科普說明文閱讀,科學家想方設法保存地球上存在的冰塊,并計劃在南極洲建立一個地下室儲存冰塊.文章中介紹了科學家要儲存冰塊的原因和目的.
解答 28-31 ADBD
28.A.細節(jié)理解題.根據第三段三、四句Trapped air bubbles (氣泡) contain samples of the atmosphere thatexisted when that ice was formed.Ice is a record of climate By examining ice.可知研究冰塊可以讓我們了解很多與氣候有關的信息.故A正確.
29.D.推理判斷題.根據第三段三、四、五句Trapped air bubbles (氣泡) 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.可知這些都是人們儲存冰的原因,研究冰塊,我們可以了解很多過去的事情,并預測未來的事情.所以文章中提到這些例子是為了說明儲存冰塊的必要性.故D正確.
30.B.推理判斷題.根據第一段最后一句They've decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt.可知因為全球變暖是,世界其他地方的冰都在融化,科學家把南極洲用來儲存冰塊,就是把它當成冰箱在使用.故B正確.
31.D.推理判斷題.根據第一段:They've decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt可知科學家認為在南極洲儲存冰是一個可靠的辦法;故選D.
點評 學生需要認真閱讀原文,把握文章大意,對文章脈絡有整體的了解,能仔細查找文中細節(jié),并能根據文章內容進行合理的推測判斷.
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