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9.Ears are for hearing-everyone knows that.But for a creature called the Cuvier's beaked whale,hearing starts in the throat,a new study found.
The observation might help explain how all whales hear.The work might also help scientists understand how animals are affected by underwater sonar (一种探测系统).This sonar,used by some ships,sends out sound waves to locate underwater objects.
The Cuvier's beaked whale is a so-called toothed whale.Toothed whales dive deep into the ocean in search of food.As the whales hunt,they produce sounds that reach objects and then return to the whales.This allows the animals to"see"the shape,size,and location of objects,even when they're 1,000meters under the sea,where it is totally dark.
To better understand how the whale hears,researchers from San Diego State University in California took X-rays of two Cuvier's beaked whales.The whales had died and washed up on the beach.
Ted Cranford and his colleagues used the images to make a computer model of a Cuvier's beaked whale's head.Then,they modeled the process of sound traveling through the head.
The researchers knew that some sounds get to the ears of a toothed whale through a structure  called"the window for sound".Found on the lower jaw,this structure is very thin on the outside and has a large pad (垫) of fat on the inside.
When the researchers used their computer model to work out how sound waves travel in the whale's head,they were surprised to find that sounds coming from right in front of the whale actually travel under the animal's jaw.From there,sound waves move through the throat,into a hole in the back of the jaw,and finally to the pad of fat near the animal's ears.
Cranford guesses that other types of whales may hear through their throats.Further testing is needed to be sure.Eventually,the insight into how whales hear might explain whether sonar testing by military ships is causing the animals to wind up on beaches.

72.Toothed whales look for food under the sea byC.
A.watching the shape and size of their objects  
B.diving deep into the sea
C.sending and receiving sounds     
D.making lots of noises
73.Researchers took X-rays of two Cuvier's beaked whales in order toD.
A.find out why they had died and washed up on the beach
B.make a computer model of a Cuvier's beaked whale's head
C.make sure that sound travels through the head
D.know more about the way the whale hears
74.Which of the following describes the way taken by sound waves through a Cuvier's beaked whale?B
A.A hole in the back of the jaw→the ears→the jaw→the throat.
B.The jaw→the throat→a hole in the back of the jaw→the ears.
C.The throat→the jaw→the ears→a hole in the back of the jaw.
D.The ears→the throat→a hole in the back of the jaw→the jaw.
75.What can be inferred from the last sentence of the passage?D
A.Ears are useless to the Cuvier's beaked whale.
B.Military ships send out sounds like a Cuvier's beaked whale.
C.The whale's unusual acts have nothing to do with human activities.
D.Further research might show human activities can influence whale's activities.

分析 本文主要讲了一项最新的研究发现一种叫做居维叶突吻鲸的动物使用喉咙听声音.

解答 72.C  73.D  74.B  75.D
72题答案:C考查细节推理,根据原文第三段的As the whales hunt,they produce sounds that reach objects and then return to the whales.可知本题答案为C选项.
73题答案:D考查细节推理,根据原文第三段的To better understand how the whale hears,researchers from San Diego State University in California took X-rays of two Cuvier's beaked whales.可知本题答案为D选项.
74题答案:B考查细节推理,根据原文第六段的they were surprised to find that sounds coming from right in front of the whale actually travel under the animal's jaw.From there,sound waves move through the throat,into a hole in the back of the jaw,and finally to the pad of fat near the animal's ears.可知声波接受的方式为:the jaw-the throat-a hole in the back of the jaw-the ears.故本题答案为B选项.
75题答案:D考查细节推理,根据文章最后一句Cranford guesses that other types of whales may hear through their throats.Further testing is needed to be sure.Eventually,the insight into how whales hear might explain whether sonar testing by military ships is causing the animals to wind up on beaches.可以推测出"未来的研究有可能会表明人类的活动会影响鲸鱼的活动",故本题答案为D选项.

点评 本文是一篇科教类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.

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1.During the years after the terrorist attack on the World Trade Center,structural engineers have been trying hard to solve a question that would otherwise have been completely unthinkable:Can building be designed to stand catastrophic blasts (攻击) by terrorists?
Soon after the terrorist attacks on the twin towers,structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) traveled to ground zero as part of a project funded by the National Science Foundation.They spent two days beginning the task of formulating (构思) ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged,but still are standing.
"Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center,those buildings that are still standing,but that sustained damage,"said M.Bruneau,Ph.D."Our immediate hope is that we can develop a better understanding as to why those buildings remain standing,while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,"he added.
Photographs taken by the investigators demonstrate the monumental damage to the World Trade Center towers and buildings nearby.One building a block away from the towers remains standing,but was badly damaged."This building is many meters away from the World Trade Center and yet we see a column (柱子) there that used to be part of that building,"explained A.Whittaker,Ph.D."The column became a missile that shot across the road,through the window and through the floor."
The visit to the area also brought some surprises,according to the engineers.For example,the floor framing (框架) system in one of the buildings was quite strong,allowing floors that were pierced by tons of falling debris (残砾) to survive."Good framing systems may provide a simple,but reliable strategy for blast resistance,"he added.Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails."We also need a better understanding of the mechanism of collapse,"said A.Whittaker."We need to find out what causes a building to collapse and how you can predict it."
A.Reinhorn,Ph.D.noted that"earthquake shaking has led to the collapse of buildings in the past.Solutions developed for earthquake-resistant design may apply to blast engineering and terrorist-resistant design.Part of our mission now is to transfer these solutions and to develop new ones where none exist at present."

67.The question raised in the first paragraph is oneC.
A.that was asked by structural engineers a month ago
B.that is too difficult for structural engineers a month ago
C.that was never thought of before the terrorist attack
D.that terrorists are eager to find a solution to
68.The column mentioned by Dr.WhittakerA.
A.was part of the building close to the World Trade Center
B.was part of the World Trade Center
C.was shot through the window and the floor of the World Trade Center
D.damaged many buildings near the World Trade Center
69.A surprising discovery made by the investigators during their visit to ground zero is thatB.
A.floors in the faraway buildings remained undamaged
B.some floor framing systems demonstrate resistance to explosion
C.complex floor framing systems are more blast resistant
D.floors in one of the buildings were pierced by tons of debris
70.What Dr.Reinhorn said in the last paragraph may imply all the following EXCEPT thatD.
A.blast engineers should develop new solutions for terror-resistant design
B.blast engineering can borrow technologies developed for terror-resistant design
C.solutions developed for earthquake-resistant design may apply to terrorist-resistant design
D.blast engineering emerges as a totally new branch of science.

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科目:高中英语 来源: 题型:阅读理解

18.As they migrate(迁移),butterflies and moths choose the winds they want to fly with,and they change their body positions if they start floating in the wrong direction.This new finding suggests that insects may employ some of the same methods that birds use for traveling long distances.Scientists have long thought that insects were simply at the mercy of the wind.
    Fascinating as their skills of flight are,migrating behavior has been difficult to study in.insects because  many long distant trips  happen thousands thousands of feet above ground. Only recently i have scientists developed technologies that can detect such little creatures at such great heights.
To their surpri se,though,the insects weren't passive travelers on the winds.In autumn,for example,most light winds blew from the east,but the insects somehow sought out ones that carried  them south and they positioned themselves to navigate directly to their wIntenng homes.
 Even in the spring,when most winds flowed northward,the insects didn't always go with the flow.If breezes weren't blowing in the exact direction they wanted to go,the insects changed their body positions to compensate.Many migrating birds do the same thing.
The study also found,butterflies and moths actively flew within the air streams that pushed them along.By adding flight speeds to wind speeds,the scientists calculated that butterflies and moths can travel as fast as 100 kilometers an hour.The findings may have real-world applications.
With climate warming,migrating insects are growing in number.Knowing how and when these pests move could help when farmers decide when to spray their crops.
71.Whatl S the main idea of the text?C
  A.Insects migrate with the seasons.
  B.Wind helps insects greatly in migrating.
  C.Windsurfing insects have real direction.
  D.Scientists have trouble in observing insects.
72.Scientists originally thought thatC.
  A.insects always waited for their favourable winds
  B.insects chose the winds they wanted to ride
  C.insects were j ust blown about by the wind
  D.insects posi tioned themselves in the winds  
73.It is not easy to stuay the migrating behavior of the insects becauseD
  A.the little creatures can fly very fast
  B.they have no regular migrating courses
  C.the wind's direction is hard to f.oresee  
  D.their flight is long and high above ground
74.We can learn from the text thatA
   A.insects fly in the way birds do
   B•insects travel more easily in autumn
   C.insects never position themselves when flying low   
   D.insects rest a lot when the wind pushes them along
75.According to the passage,the findings canB.
  A.increase insects in number    B.instruct farmers when to spray
  C.prevent climate warming    D.help protect insects.

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科目:高中英语 来源: 题型:短文改错

19.假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文.文中共有10处语言错误,每处错误仅涉及一个单词的增加、删除或修改.
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词.
删除:把多余的词用斜线(\)划掉.
修改:在错的词下划一横线,并在该词下面写出修改后的词.
注意:1.每处错误及其修改均仅限一词;
2.只允许修改10处,多者(从第11处起)不计分.
Most of us are fond in traveling,because traveling can bring us a lot of benefits.By traveling they can enjoy the beautiful scenery in different place.We will visit much famous places and taste different delicious foods.Traveling abroad is especially great experience for those who does not have the opportunity to be away from their homeland.We will meet different people and see strangely things when we traveled.It will be not only help us know about customs of other people,but also will help us gain knowledge of the places we visit.In this way,we can understand what differently other people live and arouse(唤起) our deep love for our motherland.

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