Question

5．Check out our tsunami（海啸） facts and learn some interesting information related to these great walls of water that can cause so much destruction．Find out what causes tsunamis and read about some notable recent examples of tsunamis that have occurred around the globe．
Tsunamis are huge waves of water that are usually caused by earthquakes or volcanic eruptions．
 As a tsunami approaches the shore，water may move back from the coast．If it is shallow enough，the water may be pulled back hundreds of meters．If you are in the area，observing this is a good indication that a tsunami is on the way．
Regions in tsunami danger zones often have warning systems in place to give people as much time to evacuate（撤离）as possible．
When tsunamis hit shallow water （often near the coast），they slow down but increase in height．
An earthquake in the Indian Ocean off Indonesia in December 2004 caused a tsunami that killed over 200，000 people in 14 countries．
In March 2011，the Tohoku earthquake off the eastern coast of Japan caused a tsunami that was a major factor in the death of over 15，000 people．
The tsunami waves created by the Tohoku earthquake reached heights of over 40 meters（131feet）in some areas，wiping out coastal towns and causing a number of nuclear accidents．
The Japanese word"tsunami"literally means"harbour wave"．
Tsunamis are sometimes referred to as tidal（潮水的）waves but this term has fallen out of favour because tsunamis are not related to tides．
25．How many reasons are mentioned in the passage that may cause tsunamis？B
A．One．B．Two．C．Three．D．Four．
26．which of the following shows a tsunami is coming soon？B
A．An earthquake takes place．
B．The water marches towards the coast．
C．The water near the shore is pulled back．
D．The water near the shore is very shallow．
27．What can we learn from the passage？D
A．The word"tsunami"is from British English．
B．The term"tidal wave"is used more often than"tsunami"．
C．Sone nuclear accident happened after Indonesia tsunami．
D．More people died in Indonesia tsunami than in Tohoku tsunami．
28．The passage is developed mainly byA．
A．listing the facts             
B．giving some examples
C．providing some numb ers     
D．making some conclusions．

Answer 1

分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了海啸发生的原因并通过例子来描述海啸给人类所带来的危害．

解答 25．B．细节理解题．根据第四段：Tsunamis are huge waves of water that are usually caused by earthquakes or volcanic eruptions．可知导致海啸的原因有地震和火山爆发这两种，故选B．
26．B．细节理解题．根据第二段As a tsunami approaches the shore，water may move back from the coast．If it is shallow enough，the water may be pulled back hundreds of meters可知水向海岸行进显示海啸即将到来；故选B．
27．D．细节理解题．根据文章倒数第三段和倒数第四段Indonesia in December 2004 caused a tsunami that killed over 200，000 people in 14 countries．In March 2011，the Tohoku earthquake off the eastern coast of Japan caused a tsunami that was a major factor in the death of over 15，000 people可知，在印度尼西亚海啸中死亡的人比在东日本大海啸中死亡的人多，故选D．
28．A．推理判断题．根据文章的最后几段In March 2011，the Tohoku earthquake off the eastern coast of Japan caused a tsunami that was a major factor in the death of over 15，000 people可知，作者主要是通过列举事实展开文章，故选A．

点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．