（整理版高中英语）科技类.doc

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1、科技类(1)The computer is a useful machine. It is the most important invention in many years. The oldest kind of computer is the abacus(算盘), used in China centuries ago, but the first large, modern computer was built in 1946. A computer then could do maths problems quite fast.Today computers are used in

2、 many ways and can do many kinds of work. In a few years the computer may touch the life of everyone, even people in faraway villages.In the last few years, there have been great changes in computers. They are getting smaller and smaller, and computing faster and faster, Many scientists agree that c

3、omputers can now do many things, but they cannot do everything. Who knows what the computers of tomorrow will be like? Will computers bring good things or bad things to people? The scientists of today will have to decide how to use the computers of tomorrow.1. The computer is a _ machine. A. helpful

4、B. strangeC. largeD. dangerous2. The first large, modern computer was built about _ years ago. A. a fewB. fortyC. sixtyD. eighty3. The computers of today are _ than before. A. biggerB. fewerC. smallerD. taller4. Computers can do _. A. everythingB. anythingC. nothingD. lots of things5. The scientists

5、 of today _ how to use the computers of tomorrow. A. may decideB. must decideC. can makeD. neednt make【答案与解析】本文讲计算机的开展历史。1. A。细节题。根据据第1句话 The computer is a useful machine 可知答案为A。2. C。推断题。第一台计算机是1946年生产的，距今大约60年，所以应选C。3. C。细节题。根据第3段第2句 They are getting smaller and smaller 可知答案为 C。4. D。推断题。根据第2段第1句 To

6、day computers are used in many ways and can do many kinds of work 以及but they cannot do everything可知答案为D。5. B。细节题。根据最后一句话 The scientists of today will have to decide how to use the computers of tomorrow 可知答案为B。(2)Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four

7、 hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail(桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first

8、. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.1. Hundreds of years ago, Sir Francis

9、 Bacon found _. A. the temperature of warm water drops faster than that of cold waterB. warm water is heavier than cold waterC. warm water has the same temperature as cold waterD. warm water is not as useful as cold water2. What Sir Francis Bacon said was right, but people didnt believe him until _.

10、 A. late in the 20th centuryB. early in the 20th centuryC. three years agoD. late in the 19th century3. Leave a pail with warm water and another pail with cold water in the same low temperature, youll find that _. A. cold water freezes firstB. warm water turns into ice before cold waterC. warm water

11、 and cold water freeze at the same timeD. much of cold water is changed into air.4. Why does warm water freeze first in the same freezing weather? A. Because some of the warm water turns to vapor, the amount(数量) becomes less than that of cold water.B. Because warm water is lighter than cold water.C.

12、 Because the temperature of warm water is lower than that of cold water.D. Because cold water freezes with more difficulty than warm water.【答案与解析】本文介绍热水比冷水结冰快的现象。1. A。细节题。据第1句和第2句可知答案为A。2. A。细节题。根据 But few people believe him until 1970 可知答案为A。3. B。细节题。根据文章第1句可得得答案为B。4. A。推断题。根据 Some of the warm wate

13、r changed into vapor. This meant that less of the warm water was left to be frozen 可知答案为 A。(3)If you do not use your arm or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that memo

14、ry works in the same way. When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory is poor, he really means that he does not give it enough chance to become strong. If a friend says that his arms and legs ar

15、e weak, we know that it is his own fault(过错). But if he tells us that he has a poor memory, many of us think that his parents are to blame(受责备), and few of us know that it is just his own fault. Have you ever found that some people cant read or write but usually they have better memories? This is be

16、cause they cannot read or write and they have to remember things; they cannot write down in a little notebook. They have to remember days, names, songs and stories; so their memory is the whole time being exercised. So if you want to have a good memory, learn from the people: Practice remembering.1.

17、 The main reason for one is poor memory is that _. A. his father or mother may have a poor memoryB. He does not use his name or legs for some timeC. his memory is not often usedD. he cant read or write2. If you do not use your arms or legs for some time _. A. you cant use them any moreB. they will b

18、ecome strongerC. they become weak and wont become strong until you use them again.D. they will become neither stronger nor weaker3. Which of the following is NOT true? A. Your memory works in the same way as your arms or legs.B. Your memory, like your arms or legs, becomes weak if you dont give it e

19、nough chance for practice.C. Dont learn how to read and write if you want to have a better memory.D. A good memory comes from more practice.4. Some people cant read or write, but they usually have better memories, because _. A. they have save much troubleB. they have saved much time to remember thin

20、gsC. they have to use their memories all the timeD. they cant write everything in a little notebook5. Which is the best title for this passage? A. Dont Stop Using Your Arms Or LegsB. How To Have a Good MemoryC. Strong Arms And Good MemoriesD. Learn From the People【答案与解析】本文讲述有关记忆力的一些知识。1. C。推断题。根据Whe

21、n someone says that he has a good memory, he really means that he keeps his memory in practice by using it 可推出答案为C。2. C。根据 When you start using them again they slowly become strong again 可知答案为C。3. C。根据文章内容，A、B、D项均正确，只有C项错误，所以选择C。4. C。根据 This is because they cannot read or write and they have to reme

22、mber things 和 so their memory is the whole time being exercised可知答案为C。5. B。本文主要讲记忆力不是天生的，而是靠后天培养的，所以应该选择B。(4)When Johnson called again, the manager received him very politely. “That is a most remarkable oil you brought us, Mr Johnson, he said. Johnson nodded his smooth, dark head. That was something

23、 he knew very well. “Ive never seen anything like it, the manager admitted. Johnson nodded again. “No? he said politely. Then he added, “But I think you will, sir. A very great deal of it. He appeared to think for a moment. “I think you will find it will be on sale seven, perhaps, eight years from n

24、ow. He smiled. The manager thought that was uncertain. He said, “It is better than our fish oils. I admit that. “So I am told, sir, agreed Johnson. “Have you any plans to produce it yourself, Mr Johnson? “Would I be showing it to you if I had? Johnson smiled again.“We might add some chemicals to one

25、 of our own fish oils, said the manager. “It would be expensive to do that, even if you could, Johnson said gently. “Besides, he added, “I am told that this oil will be much cheaper than your best fish oils. Cheaper than any vegetable oil, in fact. “Perhaps, said the manage. “Well, I suppose you wan

26、t to make an arrangement, Mr Johnson. Shall we discuss it? “Of course, said Johnson. “There are two ways of dealing with a situation of this sort. The usual one is to prevent it altogether or at least to delay it as long as possible. That is, of course, the best way. The manager nodded. He knew plen

27、ty about all that. “But I am so sorry for you, because, you see, that is not possible this time. The manager had his doubts, but all he said was an inquiring(asking), “Oh? “The other way, continued Johnson, “is to produce yourself before the trouble starts. 1. The manager thought of adding chemicals

28、 to the fish oil to make it _. A. cheaper than the new oil B. more quicklyC. more expensive D. as good as the new oil2. Johnsons new oil would be _. A. more expensive than fish oil, but better B. less expensive, and betterC. less expensive, but not good D. more expensive, and not so good3. Johnson e

29、xpressed his regret that the manager _. A. could not stop the new oil being made B. would never know how to make itC. had spent a lot of money on it D. didnt know enough about it4. Johnson showed his new oil to the manager because he wanted _. A. to produce it himself B. to prevent it being produced

30、C. to be paid not to produce it D. the manager to produce it【答案解析】本文讲述了科技产品开发者寻求生产商投资生产的问题。1. D。细节题。根据第 2 段 It is better than our fish oils 和第 6 段 We might add some chemicals to our own fish oils 可知它的目的是 D。2. B。 细节题。根据第 6 段的 this oil will be much cheaper than your best fish oils 和第 2 段的 It is better

31、 than our fish oils 可推知答案为 B。3. A。细节题。根据倒数第 2 段 But I am so sorry for you, because, you see, that is not possible this time 可知 D 为正确选项。4. D。推断题。根据最后一段及全文的分析可知 Johnson 的目的是想要该经理生产 the new oils，应选 D。(5) Can you remember the first time you learned to ride a bike or drive a car? Learning these skills ch

32、anged your life forever and opened up new horizons. Learning about computers can be like learning how to ride a bike or drive a car. Once you have invested the time to master the skills, you will never go back to the old days. The new technology is simply too convenient and too powerful. Technologic

33、al developments through the years have enabled us to do more with less effort. We have continuously looked for better ways of doing things. Each invention and new development has allowed us to extend our capabilities. Today we see one of the most dramatic technologies ever developedthe computer. It

34、extends the capabilities of our minds. Computers have saved organizations millions of dollars. Furthermore, these same computer systems have opened up new opportunities that would have gone undiscovered or neglected. The computer may multiply what we can do, and the return on investment is high. The

35、 growth of computer usage is surprising. On the other hand, the computer can do serious damage. Invasion of privacy(侵犯隐私), fraud(欺诈), and computer-related mistakes are just a few shocking examples. The computer is like a double-edged sword. It has the ability to cut us free from some activities, but

36、 it can also cut deep into profits, personal privacy, and our society in general. How it is used is not a function of technology. It is strictly a function of how people decide to use or misuse this new technology. The choice is yours, and only through a knowledge of computer systems will you be abl

37、e to avoid the dangers while enjoying the many, many benefits of the computer age. 1. The writer thinks learning about computers is like learning how to ride a bike or drive a car because _. A. it is simple and practicalB. it needs a lot of practiceC. it leads people to new life experiencesD. it tak

38、es much time to master the skills2. According to the passage, computers bring people the following benefits except _. A. avoiding mistakes B. saving moneyC. making money D. opening up opportunities3. According to the writer, the bad effects of computers can be avoided if we _. A. have sound knowledg

39、e of computer systemsB. tell people not to misuse computersC. have strict rules over the use of computersD. make more investments in the technology4. This passage is probably written for _. A. computers B. computer producersC. computer learners D. computer programmers【答案解析】本文讲述了电脑的巨大作用和学会电脑的益处及相关的考前

40、须知。1. C。细节题。根据第 1 段 Learning these skills changed your life forever and opened up new horizons. Learning about computers can be like learning how to rid a bike or drive a car 可知 C 为正确答案。2. A。细节题。根据第 3 段 Invasion of privacy, fraud, and computer-related mistakes are just a few shocking examples 可知电脑是不

41、能防止错误的，故 A 为正确答案。3. A。细节题。根据最后一段 The choice is yours, and through a knowledge of computer systems will you be able to avoid the dangers 可知 A 才是所需要的条件。4. C。推断题。从作者所列出的电脑的种种好处和一些考前须知来看，本文是写给电脑初学者的，故答案为 C。(6)Perhaps you have heard a lot about the Internet, but what is it, do you know? The Internet is a

42、 network. It uses the telephone to join millions of computers together around the world.Maybe that doesnt sound very interesting. But when youve joined to the Internet, there are lots and lots of things you can do. You can send E-mails to your friends, and they can get them in a few seconds. You can

43、 also do with all kinds of information on the World Wide Web (WWW).There are many different kinds of computers now. They all can be joined to the Internet. Most of them are small machines sitting on peoples desks at home, but there are still many others in schools, offices or large companies. These

44、computers are owned by people and companies, but no one really owns the Internet itself.There are lots of places for you to go into the Internet. For example, your school may have the Internet. You can use it during lessons or free time. Libraries often have computers joined to the Internet. You are

45、 welcome to use it at only time.Thanks to the Internet, the world is becoming smaller and smaller. It is possible for you to work at home with a computer in front, getting and sending the information you need. You can buy or sell whatever you want by the Internet. But do you know 98% of the informat

46、ion on the Internet is in English? So what will English be like tomorrow?1. What is the passage mainly about?A. Internet.B. Information.C. Computers.D. E-mails.2. Which is the quickest and cheapest way to send messages to your friends?A. By post.B. By E-mail.C. By telephone.D. By satellite.3. Which

47、may be the most possible place for people to work in tomorrow?A. In the office.B. At school.C. At home.D. In the company.4. Whose the owner of the Internet?A. The headmaster.B. The officer.C. The user.D. No one.5. What does the writer try to tell us with the last two sentences?A. English is important in using the Internet.B. the Internet is more and more popular.C. Most of the information is in English.D. Every computer must have the Internet.【答案与解析】这是一篇关于 Internet 的说明文，它介绍了什么是Internet，Internet 的用途，它的奉献等等。1. A。主旨题。文章的每一段都谈到了 Internet，所以我们可以推断文章的主要内容是 Internet。2. B。细节