课时作业（3）一．填入正确的关系代词或关系副词1.We are living in an age ____many things are done on computers.2.I can think of many cases_____students obviously knew a lot of English words and expressions but couldn’t write a good essay.3.I can think of many cases_____you knew noting about.4.I want to know the date _____you were born.5.I have remembered the date_____I forgot just now.6.Do you know the reason____he is absent today?7.This is the factory_____his father works.8.This is the factory_____his father built.9.The key _____she was opening the door broke.10.The library____we often go on Sundays is not far from our school.二．单句改错1.What college students are mainly concerned about is employment and their dream is to have well-paid jobs which they can live their lives to the best.2.We shouldn’t spend our money testing so many people, most of them are healthy.3.She showed the visitors around the museum, the construction of it took more than three years.4.He was educated at the local high school, after that he went on Beijing University.5.It is reported that two schools, both of them are being built in my home town, will open next year.6.I saw a woman running toward me in the dark. Before I could recognize who she was, she had ran back in the direction from that she had come.7.We went through a period with which communications were very difficult in rural area.8.They will fly to Washington, in where they plan to stay for two or three days.9.I’ll give you my friend’s home address, I can be found most everything.10.For many cities in the world, there is no room to spread out further, in which New York is an example.三．阅读理解Hollywood’s theory that machines with evil(邪恶) minds will drive armies of killer robots is just silly. The real problem relates to the possibility that artificial intelligence(AI) may become extremely good at achieving something other than what we really want. In 1960 a well-known mathematician Norbert Wiener, who founded the field of cybernetics（控制论）, put it this way: “If we use, to achieve our purposes, a mechanical agency with whose operati on we cannot effectively interfere(干预), we had better be quite sure that the purpose put into the machine is the purpose which we really desire.”A machine with a specific purpose has another quality, one that we usually associate with living things: a wish to preserve its own existence. For the machine, this quality is not in-born, nor is it something introduced by humans; it is a logical consequence of the simple fact that the machine cannot achieve its original purpose if it is dead. So if we send out a robot with the single instruction of fetching coffee, it will have a strong desire to secure success by disabling its own off switch or even killing anyone who might interfere with its task. If we are not careful, then, we could face a kind of global chess match against very determined, super intelligent machines whose objectives conflict with our own, with the real world as the chessboard.The possibility of entering into and losing such a match should concentrate the minds of computer scientists. Some researchers argue that we can seal the machines inside a kind of firewall, using them to answer difficult questions but never allowing them to affect the real world. Unfortunately, that plan seems unlikely to work: we have yet to invent a firewall that is secure against ordinary humans, let alone super intelligent machines.Solving the safety problem well enough to move forward in AI seems to be possible but not easy. There are probably decades in which to plan for the arrival of super intelligent machines. But the problem should not be dismissed out of hand, as it has been by some AI researchers. Some argue that humans and machines can coexist as long as they work in teams—yet that is not possible unless machines share the goals of humans. Others say we can just “switch them off” as if super intelligent machines are too stupid to think of that possibility. Still others think that super intelligent AI will never happen. On September 11, 1933, famous physicist Ernest Rutherford stated, with confidence, “Anyone who expects a source of power in the transformation of these atoms is talking moonshine.” However, on September 12, 1933, physicist Leo Szilard invented theneutron-induced(中子诱导) nuclear chain reaction.67. Paragraph 1 mainly tells us that artificial intelligence may .A. run out of human controlB. satisfy human’s real desiresC. command armies of killer robotsD. work faster than a mathematician68. Machines with specific purposes are associated with living things partly because they mightbe able to .A. prevent themselves from being destroyedB achieve their original goals independentlyC. do anything successfully with given ordersD. beat humans in international chess matches69. According to some researchers, we can use firewalls to .A. help super intelligent machines work betterB. be secure against evil human beingsC. keep machines from being harmedD. avoid robots’ affecting the world70. What does the author think of the safety problem of super intelligent machines?A. It will disappear with the development of AI.B. It will get worse with human interference.C. It will be solved but with difficulty.D. It will stay for a decade.四．语法填空In 1863the first underground passenger railway in the world opened in London. It ran for just under seven kilometers and allowed people to avoid terrible __1__(crowd) on the roads above as they travelled to and ___2__ word. It took three years to complete and was built using an interesting method. This included digging up the road, ____3___(lay) the track and then building a strong roof over___4___ top. When all those had been done, the road surface was replaced.Steam engines ___5__(use) to pull the carriages and it must have been___6_(fair)unpleasant for the passengers, with all the smoke and noise. However, therailway quickly proved to be a great success and within six months, more than 25,000 people were using___7__ every day.Later, engineers ____8___(manage) to construct railways in a system of deep tunnels (隧道）, which became known to the tube. This development was only possible with the ___9___ (introduce) of electric-powered engines and lifts. The central London Railway was one of the most ___10___(success) of these new lines, and was opened in 1900. It had white-painted tunnels and bright red carriages, and proved extremely popular with the public.选做题：七选五阅读Interruptions are one of the worst things to deal with while you’re trying to get work done.1 ,there are several ways to handle things.Let’s take a look at them now.2 .Tell the person you’re sorry and explain that you have a million things to do and then ask if the of you can talk at a different time.When people try to interrupt you,have set hours planned and let them know to come back during that tim e or that you’ll find them then. 3 .It can help to eliminate(消除) future interruptions.When you need to someone,don’t do it in your own office. 4 .it’s much easeier to excuse yourself to get back to your work than if you try to get someone out of your space even after explaining how busy you areIf you have a door to your office,make good use of it. 5 .If someone knocks and it’s not an important matter. Excuse yourself and let the person know you’re busy so they can get the hint(暗示) th an when the door is closed,you’re not to be disturbed.A.If you’re busy, don’t feel bad about saying noB. When you want to avoid interruptions at workC. Set boundaries for yourself as your time goesD. If you’re in the other person’s office or in a public arceaE. It’s important that you let them know when you’ll be availableF.It might seem unkind to cut people shirt when they interrupt youG.Leave it open when you’re available to talk and close it when you’re not。