细节题。本题不难,从听力开头即可听到 raising sea level so much that coastal cities from New York to Los Angles to Shanghai will be flooded 所以选C选项。
27. What do scientists disagree on?
【解析】B) How unstable the West Antarctic ice sheet is.
细节题。本题不难。注意关键句 but Antarctic experts disagree strongly on just how unstable it is 即可得出答案。
28. What is the latest information revealed about the West Antarctic ice sheet?
【解析】A)It collapsed at least once during the past 1.3 million years.
细节题。注意提取关键信息 new evidence reveals that all or most of the Antarctic ice sheet collapsed at least once during the past 1.3 million years 所以选A选项。
29. What the scientists latest findings suggest?
【解析】A) The West Antarctic region was once a open ocean.
细节题。听力最后的例子说明了这一点which suggest that the region was once open ocean not solid ice, 而其他选项都不是最新的发现。
第二篇
30 B)Whether a deleted photo is immediately removed from the web.
【解析】听力一开始作者就建议我们尝试删除自己上传的照片Take a photo and upload it to Facebook, then after a day or so, note what the URL link to the picture is and then delete it.,由此可知应该选B。
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