If it looks like a fish and swims like a fish, it usually is a fish. But not the new, lifelike robot fish developed by UK scientists, which have been swimming around the London Aquarium(水族館) as they wait for their release off northern Spain in 2011.

Equipped with tiny chemical sensors(傳感器),the fish will collect data on pollution in the port of Gijón and wirelessly send the information back to the control center.

“It’s a little lab onboard the fish,” said Rory Doyle, a scientist at BMT Group. The robots were designed, and are being built, by professor Huosheng Hu and his team at the University of Essex, UK.

The sensors will search for dangers such as chemical waste and will allow officials to map in real time the sources and effects of pollution, Doyle said. w_w w. k#s5_u.c o*m

He and his colleagues chose a fish design because hundreds of millions of years of evolution(進化) has created an energy-efficient creature, he said. “Nature has done it very, very well.” But copying such a successful design comes at a cost: nearly 29,000 u.s. dollars per robot. m

The fish, therefore, will be built “robust” enough to handle any possibilities, Doyle said. They can’t get caught in nets easily, for instance, and the tracking systems inside can help the robot fish avoid crashes with boats and other things in the way.

So far, it also seems unlikely the robot fish will be mistaken: At the London Aquarium, sharks swim away from the fake fish, possibly because they find the robots electromagnetic fields(電磁場) unpleasant, Doyle said. w_w w. k#s5_u.c o*m

At the same time, scientists are working to ensure that the sounds of the robots and other factors don’t disturb the natural environment, he added.

The robot fish was developed in order to_______. w. k#s5_u.c o*m

A．be displayed on a robot exhibition in Spain

B．be sent to London Aquarium as a gift

C．get information of ocean pollution

D．collect data on the fishes in deep sea

According to Doyle, the robot was designed into fish shape in order to_______.

A．cut the cost of the robot

B．make the robot beautiful

C．reduce the sounds of the robot

D．make the robot work better with less energy

We can infer from the passage that the robot fish______. k#s5_u.c o*m

A．would send pictures of sea life back

B．would not be looked on as a real fish by fishes

C．could swim much faster than fishes like sharks

D．could help find new forms of energy in the sea

The underlined word “robust” in Paragraph 6 probably means_____.

A．small and light    B．big and heavy

C．smooth and soft    D．strong and smart

【小題1】C

【小題2】D

【小題3】B

【小題4】D


解析:

略

練習冊系列答案
相關習題

科目：高中英語 來源： 題型：閱讀理解

     Researchers are placing robotic dogs (機器狗) in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people’s depression, physical activity, and life satisfaction. “No one will argue that an older person is better off being more active, challenged, or stimulated (刺激) ,” Edwards points out. “The problem is how we promote(使……成為現(xiàn)實)that, especially for those without friends or help. A robotic dog could be a solution.”

    In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will review the data to determine if it has inspired any changes in the life of its owner.

    “I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady.“When I’m watching TV, he’ll stay in my arms until he wants down. He has a mind of his own.”

     The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.

    “At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and not furry,” Beck says. “But it’s amazing how quickly we have given up that belief.

   “Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people’s minds.”

48. The purpose of Beck and Edwards’ study is to ______

    A. understand human-animal relationship       B. make lonely old people’s life better

    C. find the causes of old people’s loneliness    D. promote the animal-assisted research

49. In the research, the old people are asked to ______

    A. note the activities of AIBOs                      B. keep AIBOs at home for 12 weeks

    C. record their feelings and activity               D. analyze the collected information

50. What is the advantage of AIBO over live dogs?

    A. It is easier to keep at home.                      B. It can help the disabled people.

    C. It responds to all the human orders.           D. It can watch TV with its owner.

51. The author seems to suggest that the future robotic dogs may ______

    A. cure certain diseases                                B. keep old people active

    C. change people’s beliefs                             D. look more like real dogs

查看答案和解析>>

科目：高中英語 來源：2014屆河北省高二9月月考英語試卷（解析版） 題型：閱讀理解

Three Boys and a Dad

Brad closed the door slowly as Sue left home to visit her mother. Expecting a whole day to relax, he was thinking whether to read the newspaper or watch his favorite TV talk show on his first day off in months. “This will be like a walk in the park,” he’d told his wife. “I’ll look after the kids, and you can go visit your mom.”

Things started well, but just after eight o’clock, his three little “good kids”—Mike, Randy, and Alex—came down the stairs in their night clothes and shouted “breakfast, daddy.” When food had not appeared within thirty seconds, Randy began using his spoon on Alex’s head as if it were a drum. Alex started to shout loudly in time to the beat（節(jié)拍）. Mike chanted “Where’s my toast, where’s my toast” in the background. Brad realized his newspaper would have to wait for a few seconds.

Life became worse after breakfast. Mike wore Randy’s underwear on his head. Randy locked himself in the bathroom, while Alex shouted again because he was going to wet his pants. Nobody could find clean socks, although they were before their very eyes. Someone named “Not Me” had spilled a whole glass of orange juice into the basket of clean clothes. Brad knew the talk show had already started.

By ten o’clock, things were out of control. Alex was wondering why the fish in the jar refused his bread and butter. Mike was trying to show off his talent by decorating the kitchen wall with his color pencils. Randy, thankfully, appeared to be reading quietly in the family room，but closer examination showed that he was eating apple jam straight from the bottle with his hands. Brad realized that the talk show was over and reading would be impossible.

At exactly 11:17, Brad called the daycare centre (日托所）.“I suddenly have to go into work and my wife’s away. Can I bring the boys over in a few minutes?” The answer was obviously “yes” because Brad was smiling.

1.When his wife left home. Brad expected to           .

A. go out for a walk in the park          

B. watch TV talk show with his children

C. enjoy his first day off work          

D. read the newspaper to his children

2.Which of the following did Randy do?

A. Drawing on the wall                 B. Eating apple jam

C. Feeding the fish.                    D. Reading in a room

3.Why did Brad ask the daycare centre for help?

A. Because he wanted to clean up his house.

B. Because he suddenly had to go to his office

C. Because he found it hard to manage his boys home.

D. Because he had to take his wife back

4.This text is developed           .

A. by space       B. by comparison        C. by process    D. by time

 

查看答案和解析>>

科目：高中英語 來源：湖北省黃岡市2010屆高三下學期質(zhì)量檢測英語 題型：閱讀理解

D

Time spent in a bookshop can be most enjoyable, whether you are a book—lover or merely go there to buy a book as a present. You may even have entered the shop just to find shelter from a sudden shower. Whatever the reason, you can soon become totally unaware of your surroundings.

The desire to pick up a book with an attractive dust jacket is irresistible, although this method of selection ought not to be followed, as you might end up with a rather dull book.

You soon become interested in some book or other, and usually it is only much later that you realize you have spent far too much time there and must dash off to keep some forgotten appointment—without buying a book, of course.

This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. A music shop is very much like a bookshop. You can wander round such places to your heart’s content. If it is a good shop, no assistant will approach you with the inevitable greeting:“Can I help you, sir?” You needn’t buy anything you don’t want. In a bookshop an assistant should remain in the background until you have finished browsing. Then, and only then, are his services necessary. Of course, you may want to find out where a particular section is, but when he has led you there, the assistant should retire discreetly(謹慎地) and look as if he is not interested in selling a single book.

You have to be careful not to be attracted by the variety of books in a bookshop. It is very easy to enter the shop looking for a book on, say ancient coins and to come out carrying a copy of the latest best-selling novel and perhaps a book about brass—rubbing—something which had only slightly interested you up till then. This volume on the subject, however, happened to be so well illustrated and the part of the text you read proved so interesting that you just had to buy it. This sort of thing can be very dangerous. Apart from running up a huge account, you can waste a great deal of time wandering from section to section.

63.The underlined phrase “dust jacket” means_______.

A.a kind of clothes                        B.a paper cover of a book

C.a dusty book                            D.a title of a book

64.You may spend too much time in a bookshop because_______.

A.the dust jackets are very attractive

B.you start reading one of the books

C.it is raining outside

D.you have to make sure you won’t buy a dull book as a present

65.In a good bookshop_______.

A.all the books there are interesting       B.the assistant greets you in a warm way

C.your heart is satisfied                D.you feel that you are in a music shop

66.The best title for this passage may be_______.

A.The Attraction of Bookshops          B.How to Spend Your Time

C.Bookshops and Their Assistants       D.How to Select Books

 

查看答案和解析>>

科目：高中英語 來源：河南省方城二高2009-2010學年高二下學期期末模擬試題（英語） 題型：閱讀理解

 

The following conversation is between Susan Russell-Robinson from the US Geological （地質(zhì)學的）Survey and Barbara Reynolds from USA Today .

Q: Why , after 600 years of no activity , did Mount Pinatubo in Philippines erupt（噴發(fā)）in 1991 ?

A: Volcanoes （火山）each have their own eruption styles . This volcano probably has a rule which makes it erupt in the order of every 500 to 1000 years , but a volcano in Hawaii seems to erupt every year , and some of the Alaskan volcanoes might erupt every 10 or 20 years .

Q: So nothing caused it ?

A: There’s nothing out of the ordinary . If you were to take an ordinary calendar year , 50 to 75 or 80 volcanoes erupt around the world every year . There are 20 to 30 volcanoes every month that show signs of unrest . That might be a full-blown eruption or a whole host of activities like that .

Q: What is “the ring of fire” ?

A: If you look at where active volcanoes are placed around the world , there are somewhere between 500 and 600 of them . There is what appears to be almost a necklace that goes around the Pacific Ocean . It makes a ring where 60% of the world’s volcanoes lie .

Q: Why such a concentration（集中）there ?

A: That’s based on a theory that the oceans and the continents are like separate pieces . When they move , one might ride up over the other one . In this case , the Pacific Ocean goes under the continents and when that happens it seems to produce magma （熔巖）at depth and then you have volcanoes in the same ring .

1．What kind of writing do you think this passage is ?

         A．A text taken from a geography book .       B．An interview published in the press .

         C．A conversation carried out in a film .         D．An oral test recorded as an example .

2．Which of the following statements can correctly explain why we have so many volcanoes around the Pacific Ocean ?

         A．The movement of the surface of the earth makes it possible.

         B．The Pacific Ocean produces magma and presses it everywhere.

         C．The oceans and the continents are separated from each other.

         D．The earth’s surface around the Pacific is thinner than any other part.

3．Barbara Reynolds’ main purpose here is______________ .

         A．to show how dangerous volcanoes are to the world

         B．to learn what signs a volcano gives us before its eruption

         C．to warn the world of the existence of “the ring of fire”

         D．to introduce some general idea of volcanoes to the public

4．Which of the following can be considered as the best conclusion of the conversation?

         A．There are so many volcanoes in the world and we are always in danger.

         B．Volcanoes have erupted more frequently than ever before.

         C．Volcanoes are waiting to be better known.

         D．Something must be done to protect the people near the ring of fire.

 

查看答案和解析>>

科目：高中英語 來源：2011年新疆烏魯木齊市高二上第一次月考英語題（平行班） 題型：完型填空

We are warned by our teachers not to waste time because time 21 will never return. I think it quite 22. What does time look 23? Nobody knows, and we can’t see it or touch it and no 24 of money can buy it. Time is abstract(抽象的), so we have to  25about it.

   Time passes very quickly. Some students say they don’t have 26time to review their lessons. It is 27 they don’t know how to make use of their time. They waste it in going to theatres or playing, and 28 other useless things. Why do we study everyday? Why do we work? Why do most people 29 take buses instead of walking? The answer is very 30 .We wish to save time because time is31.

   Today we are living in the 21st century. We 32 time as life. When a person dies, his life ends. Since life is short, we must 33 our time and energy to our study so that we 34 be able to work and live well in the future. Laziness is the 35 of time, for it not only brings us 36, but also does other 37 to us. If it is necessary for us to do our work today, 38 we do it today and not 39 it until tomorrow. Remember that time is much more 40.

1.A. lost       B. passed       C. missed       D. used

2.A. important  B. true     C. interesting  D. usual

3. A. for       B. like     C. after        D. over

4.A. amount     B. quality      C. quantity D. price

5.A. think      B. imagine  C. examine  D. check

6.A. spare      B. free     C. enough   D. much

7.A. that       B. why      C. because  D. certain

8.A. doing      B. making   C. taking       D. getting

9.A. needn’t    B. have to  C. had better   D. would rather

10.A. easy      B. simple       C. stupid       D. interesting

11.A. worthless B. priceless    C. ready        D. little

12.A. look upon B. agree        C. think        D. believe

13.A. spend     B. give     C. set      D. devote

14.A. must      B. should       C. may      D. would

15.A. helper        B. thief        C. friend       D. teacher

16.A. wealth        B. health       C. failure      D. illness

17.A. danger        B. harm     C. trouble      D. difficulty

18.A. help      B. make     C. have     D. let

19.A. keep      B. remain       C. manage   D. leave

20. A. valuable B. expensive    C. worth        D. rich

 

查看答案和解析>>

同步練習冊答案