1.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---Sprawing across(橫跨)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 150glaciers,but by 2005it 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?C
A.Rising sea levels
B.Humans'diving activities
C.Rising sea temperatures
D.The shrinkage(縮。﹐f their habitats
22.What can we infer from the part of"Venice"?B
A.Venice is the only coastal city of Italy
B.Many places are in the risk of sinking below the sea level
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
A.It covers a large area in Montana
B.It is covered by over 150 glaciers
C.Plant species and animals in it have died out
D.It doesn't support any living thing for its cold
24.Which site's shrinking reason differs from the other sites?D
A.The Great Barrier Reef             B.Venice
C.Glacier National Park              D.The Amazon.

分析 本文屬于廣告類閱讀,作者通過這篇文章向我們介紹了如今全球變暖所引發(fā)的一些問題.

解答 21.C  細(xì)節(jié)理解題,根據(jù)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可知珊瑚蟲死亡的原因是因?yàn)楹K疁囟壬撸蔬xC.
22.B  細(xì)節(jié)理解題,根據(jù)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脅這很多沿海的城市,故選B.
23.A  細(xì)節(jié)理解題,根據(jù)第四段Located in Montana,Canada,this park is over a million acres and has a huge plant and wildlife population.可知冰川自然公園在蒙大拿州占據(jù)了很大的面積,故選A.
24.D  細(xì)節(jié)理解題,根據(jù)最后一段Our expansion usually requires cutting down forests for land,fuel and materials,but rarely considers the consequences可知亞馬遜雨林的減少是因?yàn)槿祟愵I(lǐng)地的擴(kuò)張,根據(jù)The Great Barrier Reef---Rising air temperatures will cause sea temperatures to rise as well;Rising sea levels are in fact a serious threat to many coastal cities located at sea level;As temperatures rise,the glaciers and ice melt,which will upset the ecosystems sustaining over a thousand plant species and hundreds of animals可知其他三個景點(diǎn)正在消失的原因是氣候變暖,故選D.

點(diǎn)評 考查學(xué)生的細(xì)節(jié)理解和推理判斷能力.做細(xì)節(jié)理解題時一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確選擇.在做推理判斷題時不要以個人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.

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