精英家教网 > 高中英语 > 题目详情
19.In a little-known part of the counter-terrorism (反恐怖主义) world,one of the most effective detection systems is a 600-pound animal that works for about 20pounds of fish a day.
Since the 1960s,the United States and a handful of other countries have trained dolphins and sea lions to detect sea mines and swimmers,and to recover worn--out torpedoes (鱼雷) and testing objects used in naval (海军的) exercises.
The U.S.Navy kept its Marine Mammal Program a secret until the 1990s,and this spring CNN became one of the first members of the media to witness firsthand how the program works.
The program trains about 75Pacific bottlenose dolphins,with natural biosonar (生物声纳) that tracks better than any manmade device; and 35California sea lions,with very good underwater eyesight.
Not only do these trained marine mammals track and save millions of dollars in U.S.military equipment,they are also helping to save lives.The Navy won't reveal whether the dolphins and sea lions have effectively stopped terrorists attempting to do harm to the U.S.
A key part of the training program is teaching these mammals how to stop potentially unfriendly swimmers.The program is also positioned to defend against swimmer terrorist attacks as well.
In the digital age,it seems that there should be more advanced approaches to guard the Navy's most expensive things.But according to Rothe,the program director,nothing in today's high-technology world can compete with these mammals'biosonar abilities."I hope that one day there is a robot or a UUV (un-manned underwater vehicle) that makes the mammal program out of date,"he said."But right now this is the best thing out there."
25.The U.S.Marine Mammal Program trained marine mammals toA.
A.stop dangerous swimmers
B.catch 20pounds of fish a day
C.destroy sea mines
D.fire torpedoes
26.What can we learn from the last paragraph?A
A.The trained dolphins are the best way of protection available to the U.S.Navy.
B.There will be dolphin-like robots in the future according to Rothe.
C.The mammal program will become useless soon.
D.Rothe has no faith in today's high technology.
27.Which of the following is TRUE according to the text?D
A.Many countries have trained sea animals for counter-terrorism.
B.The Marine Mammal Program was a secret until the 1960s.
C.The trained sea animals have already stopped some terrorists.
D.The U.S.Navy has trained both dolphins and sea lions.

分析 可爱乖巧的海豚和海狮充当高效反恐先锋,成为美国反恐大军中的佼佼者.它们不仅可为美国海军减少巨额损失,同时还能帮助救赎生命.

解答 25.A  26.A  27.D
25.A 细节理解题.根据文章第二段及第六段中的teaching these mammals how to stop potentially unfriendly swimmers可以训练这些动物是为了阻止那些危险的游泳者,故A项正确.
26.A 推理判断题.根据最后一段…nothing in today's high-technology world can compete with these mammals'biosonar abilities可知,在某种意义上讲,海豚是保护美国海军最好的方法,故答案为A
27.D 细节理解题 根据第三段The program trains about 75Pacific bottlenose dolphins,with natural biosonar (生物声纳) that tracks better than any manmade device; and 35California sea lions,with very good underwater eyesight.可知,这项项目不光训练海豚,还训练了海狮,可知D项是正确的,故答案为D

点评 阅读理解题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释.考生首先要仔细阅读短文,完整了解信息,准确把握作者观点.

练习册系列答案
相关习题

科目:高中英语 来源: 题型:阅读理解

9.All over the world,children in hospital are being treated with a new kind of medicine:laughter.Lucy is 23and works for Theodora Children's Trust.She is one of many clown (小丑) doctors who bring a smile to the faces of sick children.
"I'm a Theodora clown doctor.I call myself Dr Looloo.I spend two days a week in children's hospitals,making funny faces,telling jokes,and doing magic tricks.As I walk into the wards I blow bubbles,shake hands with the kids,and make up nonsense songs for those children well enough to sing.I take special balloons to make‘balloon animals'and tell funny stories about them.
I'm naturally a very cheerful person.I've always been a clown.In fact my father's a clown and I started working with him when I was eight years old.I knew it was just the job for me and I became a clown doctor because I think it is a great way to cheer up sick,frightened children in hospital.
Being a clown in hospital is very tiring both physically and emotionally.We have to learn not to show our feelings,otherwise we'd be useless.Clown doctors are sensitive but this is not a side most people see.To the children we're happy all the time.I'm still learning to allow myself to feel sad occasionally.There are special kids you get really close to.At the moment I'm working with a very sick little girl from Bosnia who speaks no English,so our only common language is laughter.
At weekends I participate in events to raise money for Theodora Children's Trust.It's a charity so we are paid with the money people give.Being a clown doctor makes the worries of everyday life seem small.All in all,I feel honoured to do this job."

32.Lucy works as a clown doctor becauseC.
A.her father is a clown            
B.she has been a clown since she was eight
C.laughter is a great help to sick children  
D.working in hospital brings her extra money
33.What do clown doctors usually do in hospital?B
A.Teach kids how to speak English.
B.Cheer kids up with funny stories.
C.Join in activities to raise money.
D.Develop kids'sense of humour.
34.Lucy thinks that being a clown doctor isA.
A.an honourable and meaningful practice    
B.an interesting job to make a living
C.a good way of getting rid of her worries   
D.an experience of great fun
35.The best of the passage may beC.
A.How to be a clown              
B.Patient and clown
C.Clown doctor                  
D.Raise money for charity.

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

10.Mountain lions live in mountainous areas of the western United States.Lately,however,people have reported seeing them in quiet neighborhoods all across the country!Usually considered shy and seldom seen,these lions are becoming more noticeable.In addition,the lions appear to be moving east.They were even reported in the suburbs of Boston,Philadelphia,and Chicago.
It seems certain that these"kings of the mountains"are moving.Why?Scientists are not sure.Some think that as the mountain lion population increases in the west,younger wild cats are leaving the area.These cats are searching for new homes and new places for food.
"The young males are looking for new homes,"says Lynn Sadler,who is the director of the Mountain Lion Foundation in Sacramento,Calif."People tend to create too many barriers,such as buildings,fences,roads,and noise.As the mountain lions seek new places and food and water sources,these barriers get in their way."
The sightings have made people increasingly watchful.Sometimes the"mountain lions"that people report seeing turn out to be large dogs or even house cats.But at least a few of the meetings have been real.The building of new roads,t he growing of suburbs and the growing popularity of outdoo r activities are all increasing the chances that people in various parts of the country may meet up with a mountain lion.
Because many people are concerned about the reappearance of the American lion,an expert outlined some ways they can avoid attracting the wild cats:Never leave pets or pet food outside; properly care for farm animals; and plan public land use to enable the lions to move safely from one place to another.
"To be fair,"says the expert,"mountain lions are trying to regain their homes.They were here first.Now we need to find ways we can live together."
28.Mountain lions are moving probably becauseC.
A.the suburbs of big cities are peaceful and quiet
B.more roads are being built into the mountains
C.the number of the lions increases in the west
D.young lions are seeking new partners
29 According to the passage,it is clear thatB.
A.the reported sightings of mountain lions have not been proved
B.people walking in the country may come across a lion
C.fences have been built to protect the lions
D.mountain lions prefer populated areas
30.To avoid attracting mountain lions,people are advisedB.
A.to build more roads for the lions to move safely
B.to keep a close watch on their farm animals
C.not to stay outdoors
D.not to raise pets
31.Which is the best title for the passage?A
A.Mountain Lions in Unlikely Places
B.Measures Taken to Avoid Lions
C.Number of Sightings Going Up
D.Mountain Lions Moving West、

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

7.He is not wealthy; on the contrary,he has been in heavydebt(债).

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

14.If you keepyour word,you will do what you promise before.

查看答案和解析>>

科目:高中英语 来源: 题型:短文改错

4.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,每句中最多有两处,每处错误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.
Last evening,I went to a tea house with my best friends Susan.Before the tea was serving,we talked to each other happily.When waiter came to us with the tea,we didn't see him.Unfortunately Susan raises her hand to comb her hair just when the waiter bent to put the plate on the table.Her hand hit to the cup,and the tea was spattered on her trousers.In my surprise,instead of complaining,Susan smiled,"So lucky that it's not on my white shirt,and I can't even clean it."His words were very inspiring.We couldn't foresee that would happen,but looking at it in a positively way could make us always happy.

查看答案和解析>>

科目:高中英语 来源: 题型:短文改错

11.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(\)划掉.
修改:在错的词下画一横线(          ),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.
Dear Steven,
I'm glad that you are coming to Beijing this summer vacation.You asked many question in your letter,and now let me answer them.
Beijing,the capital of China,is attractive city with a long history.You can found all kinds of delicious food in Beijing,of that the most famous is the roast Beijing duck.I hope we will enjoy it.Besides,there is a great number of tourist attractions worth visiting,such as the Great Wall,the Summer Palace or the Forbidden City.These scenic spots have attracted millions of tourists in this year.I promise you will have a wonderfully time here in Beijing.
I'm looking forward to hear from you as soon as possible.
Yours,
Liu Chao.

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

8.I enjoy (61)climbing(climb)mountains whenever I can find the time to do so.Tom and Mike are my best friends,both of(62)whomalso like sports.Two years ago,the three of us (63)went(go)up to Mt.Lushan.Instead of taking a bus,which is (64)more comfortable(comfortable),we preferred to climb.We started from the foot of the mountain early in the morning,(65)chatting(chat)all the way.After about one and a half (66)hours'(hour)climbing,we saw two mountain paths before us.We could not decide(67)whichto choose.In the end,we took the right path,thinking that might be a short cut.But we were wrong.We could not find our way out,(68)lost(lose)in the mountain.We had to use our hands and feet to make a way.We began to cry for help (69)butnobody answered.It was not until darkness (70)fell(fall)that we found a right path leading up to a paved road.

查看答案和解析>>

科目:高中英语 来源: 题型:书面表达

9.阅读下面的征友信.假定你是潇湘中学的李华,愿意与写信人交朋友.请根据以下要求写一封回信,介绍个人的基本情况和学校生活.信的开头和结尾已给出.
要求:
1)介绍个人基本情况不少于3条信息,如年龄、性格、爱好等;学校生活也不少于3条信息,如作息时间、班级大小、学习课程等;
2)词数:100左右;
3)将回信写在答题卡上.
Dear friend,
Hi!My name is Jack.I am a high school student in the UK.I'm 17,an active and easy-going boy.I like ball games and surfing the Internet very much.School here starts at 9a.m.and ends at about 3:30p.m..Our class is small,only 29students or so.We have to move to different classrooms for different classes.Besides the main subjects,we can choose other subjects like Woodwork and German.Right now,I'm busy preparing myself for the A-level exam.
Please write and tell me about yourself and your school life if you are willing to be my pen friend.
Best wishes,
Jack

Dear Jack,
Hi,I am Li Hua from China.I am very glad to be your pen friend.I study in Bian Cheng High School.
                              
Best wishes,
Li Hua.

查看答案和解析>>

同步练习册答案