A
Soon enough, we will lose some of the most amazing sites on Earth!
The Great Barrier Reef
Rising air temperatures will cause sea temperatures to rise as well.All life supported by the oceans will be affected with this shock to their ecosystem.Coral are some of the most vulnerable marine animals and we are already watching whole reefs disappear.The Great Barrier Reef in Australia is no exception and will continue to shrink as the temperatures rise！These reefs are some of the best in the world for diving, but they will soon disappear!
Venice
Sprawling across(横跨)hundreds of small islands in Northeast Italy，Venice is at extreme risk of sinking into the Adriatic Sea.Rising sea levels are in fact a serious threat to many coastal cities located at sea level.Lucky for us，however，Venice is developing a series of sea walls to protect the city in times of high tide.
Glacier(冰川)National Park
Glacier National Park was once covered by over 150 glaciers, but by 2005 it only had about 27！Located in Montana, Canada, this park is over a million acres and has a huge plant and wildlife population.As temperatures rise, the glaciers and ice melt, which will upset the ecosystems sustaining over a thousand plant species and hundreds of animals.
The Amazon
The cause behind the disappearance of these fantastic places ultimately comes down to humans.Our expansion usually requires cutting down forests for land, fuel and materials，but rarely considers the consequences.These forests are sources of food and medicine for just about everyone on the planet!
What will happen if we lose these valuable places and beautiful destinations？！
21. According to the text，what is causing coral's death?
A. Rising sea levels. B. Rising sea temperatures.
C. Humans' diving activities. D. The shrinkage(缩小)of their habitats.
22. What can we infer from the part of “Venice”？
A. Many places are in the risk of sinking below the sea level.
B. Venice is the only coastal city of Italy.
C. Venice will never sink because of the protection of sea walls.
D. Italy consists of hundreds of small islands in the Adriatic Sea.
23. What can we learn about Glacier National Park from the text?
A. It doesn't support any living thing for its cold. B. It iscovered by over 150 glaciers.
C. Plant species and animals in it have died out. D. It covers a large area in Montana.
24. Which site's shrinking reason differs from the other sites?
A. The Great Barrier Reef. B. Venice.
C. The Amazon. D. Glacier National Park.
【答案】21. B 22. A 23. D 24. C
【解析】
【分析】
本文属于环保类阅读，作者向我们介绍了如今全球变暖所引发的一些问题：我们将失去一些地球上最令人惊奇的地方！
【21题详解】
细节理解题。根据第二段The Great Barrier Reef in Australia is no exception and will continue to shrink as the temperatures rise！These reefs are some of the best in the world for diving, but they will soon disappear!可知珊瑚虫死亡的原因是因为海水温度升高，故选B.
【22题详解】
细节理解题。根据第三段Rising sea levels are in fact a serious threat to many coastal cities located at sea level. 可知海平面的升高威胁着很多沿海的城市，故选A.
【23题详解】
细节理解题。根据第四段Located in Montana, Canada, this park is over a million acres and has a huge plant and wildlife population.可知冰川自然公园在蒙大拿州占据了很大的面积，故选D.
【24题详解】
细节理解题。根据The Great Barrier Reef中Rising air temperatures will cause sea temperatures to rise as well；Venice中Rising sea levels are in fact a serious threat to many coastal cities located at sea level. Glacier(冰川)National Park中As temperatures rise, the glaciers and ice melt, which will upset the ecosystems sustaining over a thousand plant species and hundreds of animals.可知这三个景点正在消失的原因是气候变暖。根据最后一段Our expansion usually requires cutting down forests for land, fuel and materials，but rarely considers the consequences.可知亚马逊雨林的减少是因为人类领地的扩张，和以上三个景点原因不同。故选C.
【点睛】细节理解题具体方法与步骤如下：
1.略读材料，大概了解原文，掌握中心或主旨。本文向我们介绍了如今全球变暖所引发的一些问题。
2.按文章的体裁，作者写作的组织模式及有关的信息词。如for example, first, second…等预测应该到何处寻找自己所需要的事实。
3.将精力放在寻找你所需要的细节上。快速通篇跳读，全文扫视，找到细节出处，待找到含细节句子时，放慢速度，仔细核对比较内容，直至找到答案。如小题4根据最后一段Our expansion usually requires cutting down forests for land, fuel and materials，but rarely considers the consequences.可知亚马逊雨林的减少是因为人类领地的扩张，根据The Great Barrier Reef中Rising air temperatures will cause sea temperatures to rise as well；Venice中Rising sea levels are in fact a serious threat to many coastal cities located at sea level. Glacier(冰川)National Park中As temperatures rise, the glaciers and ice melt, which will upset the ecosystems sustaining over a thousand plant species and hundreds of animals.可知其他三个景点正在消失的原因是气候变暖。
