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案例分析题An Intelligent Car Driving needs sharp eyes,keen ears,quick brain,and coordination(协调)between hands and the brain.Many human drivers have all(51)and can control a fast-moving car.But how does an intelligent car control itself There is a virtual(虚拟的)driver in the smart car.This virtual driver has“eyes,”“brains,”“hands”and“feet,”too.The minicameras(52)each side of the car are his“eyes,”which(53)the road conditions ahead of it.They watch the(54)to the car’s left and right.There is also a highly automatic driving(55)in the car.It is the built-in computer,which is the virtual driver’s“brain.”His“brain”(56)the speeds of other moving cars near it and analyzes their positions.Basing on this information,it chooses the(57)path for the intelligent car,and gives instructions to the “hands”and“feet”to act accordingly.In this way,the virtual driver(58)his car. What is the virtual driver’s best advantageHe reacts(59).The minicameras are bringing(60)continuously to the “brain.”It completes the processing of the images within 100 milliseconds.(61),the world’s best driver needs at least one second to react.Besides,when he takes(62),he needs one more second. The virtual driver is really wonderful.He can reduce the accident(63)considerably on expressways(高速公路).In this(64),can we let him have the wheel at any time and in any placeExperts(65)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways. （64）处填入（）。
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Robots May Allow Surgery in Space Small robots designed by University of Nebraska researchers may allow doctors on Earth to help perform surgery on patients in space. The tiny,wheeled robots,（51）are about 3 inches tall and as wide as a lipstick case,can be slipped into small incisions(切口)and computer-controlled by surgeons in different locations.Some robots are equipped（52）cameras and lights and can send images back to surgeons and others have surgical tools attached that can be（53）remotely. “We think this is going to （54）open surgery,”Dr Dmitry Oleynikov said at a news conference.Oleynikov is a （55）in computer-assisted surgery at the University of Nebraska Medical Center in Omaha. Officials hope that NASA will teach（56）to use the robots soon enough so that surgeries could one day be performed in space. On earth,the surgeons could control the robots themselves（57）other locations.For example,the robots could enable surgeons in other places to （58）on injured soldiers on the front line.Researchers plan tp seek federal regulatory（59）early nest year.Tests on animals have been successful,and tests on humans in England will begin very soon. The camera-carrying robots can provide（60）of affected areas and the ones with surgical tools will be able to maneuver(操控)inside the body in ways surgeons’ hands can’t.The views from the camera-carrying robots are （61）than the naked eye,because they（62）back color images that are magnified(放大).Because several robots can be inserted through one incision,they could reduce the amount and （63）of cuts needed for surgery,which would decrease recovery time.This is particularly（64）to those patients who have been debilitated(使虚弱)by long illness. Eventually,Oleynikov said,the tiny robots may enable surgeons to work without ever（65）their hands in patients’ bodies.“That’s the goal,”Oleynikov said.“It’s getting easier and easier.We can do even more with these devices.”
案例分析题An Intelligent Car Driving needs sharp eyes,keen ears,quick brain,and coordination(协调)between hands and the brain.Many human drivers have all(51)and can control a fast-moving car.But how does an intelligent car control itself There is a virtual(虚拟的)driver in the smart car.This virtual driver has“eyes,”“brains,”“hands”and“feet,”too.The minicameras(52)each side of the car are his“eyes,”which(53)the road conditions ahead of it.They watch the(54)to the car’s left and right.There is also a highly automatic driving(55)in the car.It is the built-in computer,which is the virtual driver’s“brain.”His“brain”(56)the speeds of other moving cars near it and analyzes their positions.Basing on this information,it chooses the(57)path for the intelligent car,and gives instructions to the “hands”and“feet”to act accordingly.In this way,the virtual driver(58)his car. What is the virtual driver’s best advantageHe reacts(59).The minicameras are bringing(60)continuously to the “brain.”It completes the processing of the images within 100 milliseconds.(61),the world’s best driver needs at least one second to react.Besides,when he takes(62),he needs one more second. The virtual driver is really wonderful.He can reduce the accident(63)considerably on expressways(高速公路).In this(64),can we let him have the wheel at any time and in any placeExperts(65)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways. （62）处填入（）。
Hitchhiking(搭车旅游) When I was in my teens(十几岁)and 20s,hitchhiking was a main form of long-distance transport.The kindness or curiosity of strangers（51）me all over Europe,North America,Asia and southern Africa.Some of the lift-givers became friends,many provided hospitality（52）the road. Not only did you find out much more about a country than（53）traveling by train or plane,but also there was that element of excitement about where you would finish up that night.Hitchhiking featured importantly in Western culture.It has books and songs about it.So what has happened to （54） A few years ago,I asked the same question about hitchhiking in a column on a newspaper.（55）of people from all over the world responded with their view on the state of hitchhiking. “If there is a hitchhiker’s （56）it must be lran,”came one reply.Rural lreland was recommended as a friendly place for hitchhiking,（57）was Quebec,Canada-“if you don’t mind being berated(严厉指责)for not speaking French.” But while hitchhiking was clearly still alive and well in many parts of the world,the （58）feeling was that throughout much of the west it was doomed(消亡). With so much news about crime in the media,people assumed that anyone on the open road without the money for even a bus ticket must present a danger.But do we（59）to be so wary both to hitchhike and to give a lift In Poland in the 1960s,（60）a Polish woman who e-mailed me,“the authorities introduced the Hitchhiker’s Booklet.The booklet contained coupons for drivers,so each time a driver（61）somebody,he or she received a coupon.At the end of the season,（62）who had picked up the most hikers were rewarded with various prizes.Everybody was hitchhiking then.” Surely this is a good idea for society.Hitchhiking would increase respect by breaking down（63）between strangers.It would help fight（64）warming by cutting down on fuel consumption as hitchhikers would be using existing fuels.It would also improve eductional standards by delivering instant（65）in geography,history,politics and sociology. 52（）
第三篇Mobile Phones:Are They about to Transform Our Lives We love them so much that some of us sleep with them under the pillow,yet we are increasingly concerned that we cannot escape their electronic reach.We use them to convey our most intimate secrets,yet we worry that they are a threat to our privacy.We rely on them more than the lnternet to cope with modern life,yet many of us don’t believe advertisements saying we need more advanced services. Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts(天线竿),a recent report clains that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them.Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone (支柱)of modern social life,from love affairs to friendship to work.One female teacher,32,told the researchers:“I love my phone.It’s my friend.” The close relationship between user and phone is most pronounced among teenagers,the report says,who regard their mobiles as an expression of their identity.This is partly because mobiles are seen as being beyond the control of parents.But the researchers suggest that another reason may be that mobiles,especially taxt messaging,are seen as a way of overcoming shyness.“Texting is often used for apologies,to excuse lateness or to communicate other things that make us uncomfortable,”the report says,The impact of phones,however,has been local rather than global,supporting existing friendships and networks,rather than opening users to a new broader community.Even the language of texting in one area can be incomprehensible to anybody from another area. Among the most important benefits of using mobile phones,the report claims,will be a vastly improved mobile infrastructure(基础设施),providing gains throughout the economy,and the provision of a more sophisticated location-based services for users.The report calls on govemment to put more effort into the delivery of services by bobile phone,with suggestions including public transport and traffic information and doctors’ text messages to remind patients of appointments.“I love that idea,”one user said in an interview.“It would mean I wouldn’t have to write a hundred messages to myself.” There are many other possibilities.At a recent trade fair in Sweden,a mobile navigation product was launched.When the user enters a destination,a route is automatically downloaded to their mobile and presented by voice,pictures and maps as they drive.In future,these devices will also be able to plan around congestion(交通堵塞)and road works in real time.Third generation phones will also allow for remote monitoring of patients by doctors.In Britain scientists are developing a asthma(哮喘)management solution,using mobiles to detect early signs of an attack. .The navigation product launched in Sweden is helpful to drivers because it can
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