People do not analyze every problem they meet. Sometimes they try to remember a solution from the last time they had a 36 problem. They often accept the opinions or ideas of other people. Other times they begin to act without 37 ; they try to find a solution by trial and error(反复试验). 　38 , when all of these methods 39 , the person with a problem has to start analyzing. There are six 40 in analyzing a problem.

41 ，the person must recognize that there is a problem. For example, Sam’s bicycle is broken, and he cannot ride it to class as he usually does. Sam must 42 that there is a problem with the bicycle.

Next, the person must find out the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must 43 the parts that are wrong.

Now the person must look for 44 that will make the problem clearer and lead to 45 solutions. For example, suppose Sam decides that his bicycle does not work because there is something wrong with the brakes. 　46 , he can look into his bicycle repair book and read about brakes, talk to his friends at the bike shop, or look at his brakes carefully.

After 47 the problem, the person should have 48 suggestions for a possible solution. Take Sam as an example 49 , his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.

In the end, one 50 seems to be the solution to the problem. Sometimes the

51 idea comes quite 52 because the thinker suddenly sees something new or sees something in a different way. Sam, for example, suddenly sees there is a piece of chewing gum (口香糖) stuck to a brake. He 53 hits on the solution to his problem: he must 54 the brake.

Finally the solution is 55 . Sam does it and finds his bicycle works perfectly. In short he has solved the problem.

36. A. serious 　　　　　　 B. usual　　　　　　　　 C. similar　　　　　　　　　　 D. common

37. A. searching　　　　　 B. thinking　　　　　　 C. finding　　　　　　　　　　 D. looking

38. A. Besides　　　　　　　B. Instead　　　　　　　C. Otherwise　　　　　　　 D. However

39. A. fail　　　　　　　　　　 B. work　　　　　　　　 C. change　　　　　　　　　　D. develop

40. A. ways　　　　　　　　　B. conditions　　　　 C. stages　　　　　　　　　　　D. orders

41. A. First　　　　　　　　　 B. Usually　　　　　　 C. In general　　　　　　　　 D. Most importantly

42. A. explain　　　　　　　 B. prove　　　　　　　 C. show　　　　　　　　　　　　D. see

43. A. check　　　　　　　　 B. determine　　　　 C. correct　　　　　　　　　　 D. recover

44. A. answers　　　　　　　B. skills　　　　　　　　 C. explanation　　　　　　 D. information

45. A. possible　　　　　　　 B. exact　　　　　　　　 C. real　　　　　　　　　　　　 D. special

46. A. In other words　　 B. Once in a while C. First of all　　　　　　　D. At this time

47. A. discussing　　　　　　 B. settling down　　　C. comparing with　　　D. studying

48. A. extra　　　　　　　　　　 B. enough　　　　　　　 C. several　　　　　　　　　D. countless

49. A. secondly　　　　　　 B. again　　　　　　　　　 C. also　　　　　　　　　　　D. alone

50. A. suggestion　　　　　　 B. conclusion　　　　　 C. decision　　　　　　　　D. discovery

51. A. next　　　　　　　　　　　B. clear　　　　　　　　　 C. final　　　　　　　　　　　D. new

52. A. unexpectedly　　　　 B. late　　　　　　　　　　 C. clearly　　　　　　　　　D. often

53. A. fortunately　　　　　　 B. easily　　　　　　　　　 C. clearly　　　　　　　　 D. immediately

54. A. clean　　　　　　　　　 B. separate　　　　　　　　C. loosen　　　　　　　　 D. remove

55. A. recorded　　　　　　　B. completed　　　　　　 C. tested　　　　　　　　　 D. accepted

完形填空：阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。（共20小题，每小题1.5分）
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be　46　.                    Today things are　 47　 , the world has become too　 48　 . We are using up our natural resources too quickly, and at the same time we are　 49　 our environment with dangerous chemicals. If we continue to do this, human life on the earth　 50　 survive.
　　Everyone　51　 today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing　 52 , more and more fish are caught. We know that if too many trees are cut down, 　53　 will disappear and nothing will grow on the land. Yet, we　 54　 to use bigger and more powerful machines to　55　 more and more trees.
　　We realize that if rivers are polluted with waste products from factories, we will die.　 56　 , in most countries wastes are　 57　put into rivers or into the sea, and there are　 58　 laws to stop this. We know, too, that if the　 59　of the world continues to rise at the present rate, in a few years there will not be enough 60　. What can we do to solve these problems ?
　  If  we eat more vegetables and less　 61　 , there will be more food available for everyone. Land that is used to grow crops　 62　 five times more people than land where animals are kept. Our natural resources will　 63　 longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth 64　 .
　　Finally, if we educate people to think about the problems, we shall have a better and clearer 65　in the future.

The flag, the most common symbol of a nation in the modern world, is also one of the most ancient. With a clear symbolic meaning, the flag in the traditional form is still used today to mark buildings, ships and other vehicles related to a country.

The national flag as we know it today is in no way a primitive artifact. It is, rather, the product of thousands of years’ development. Historians believe that it had two major ancestors, of which the earlier served to show wind direction.

Early human beings used very fragile houses and boats. Often strong winds would tear roofs from houses or cause high waves that endangered travelers. People’s food supplies were similarly vulnerable. Even after they had learned how to plant grains, they still needed help from nature to ensure good harvests. Therefore they feared and depended on the power of the wind, which could bring warmth from one direction and cold from another.

Using a simple piece of cloth tied to the top of a post to tell the direction of the wind was more dependable than earlier methods, such as watching the rising of smoke from a fire. The connection of the flag with heavenly power was therefore reasonable. Early human societies began to fix long pieces of cloth to the tops of totems (图腾) before carrying them into battle. They believed that the power of the wind would be added to the good wishes of the gods and ancestors represented by the totems themselves.

These flags developed very slowly into modern flags. The first known flag of a nation or a ruler was unmarked: The king of China around 1,000 B.C. was known to have a white flag carried ahead of him. This practice might have been learned from Egyptians even further in the past, but it was from China that it spread over trade routes through India, then across Arab lands, and finally to Europe, where it met up with the other ancestor of the national flag.

1. The underlined word “ vulnerable” in paragraph 3 means _______.

　　A. easy to damage　　                B. likely to be protected

　　C. impossible to make sure of　　       D. difficult to find

2.The earliest flags were connected with heavenly power because they _______.

　　A. could tell wind direction　　         B. could bring good luck to fighters

　　C. were believed to stand for natural forces D. were handed down by the ancestors

3.What does the author know of the first national flag?

　　A. He knows when it was sent to Europe.  B. He doubts where it started.

　　C. He thinks it came from China.   　　  D. He believes it was made in Egypt.

4.What will the author most probably talk about next?

　　A. The role of China in the spread of the national flag.

　　B. The importance of modern flags.

　　C. The use of modern flags in Europe.

　　D. The second ancestor of the national flag.

完形填空：阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。（共20小题，每小题1.5分）

   In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be　46　 .                    Today things are　 47　 , the world has become too　 48　 . We are using up our natural resources too quickly, and at the same time we are　 49　 our environment with dangerous chemicals. If we continue to do this, human life on the earth　 50　 survive.

　　Everyone　51　 today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing　 52 , more and more fish are caught. We know that if too many trees are cut down, 　53　 will disappear and nothing will grow on the land. Yet, we　 54　 to use bigger and more powerful machines to　 55　 more and more trees.

　　We realize that if rivers are polluted with waste products from factories, we will die.　 56　 , in most countries wastes are　 57　 put into rivers or into the sea, and there are　 58　 laws to stop this. We know, too, that if the　 59　 of the world continues to rise at the present rate, in a few years there will not be enough 60　. What can we do to solve these problems ?

　  If  we eat more vegetables and less　 61　 , there will be more food available for everyone. Land that is used to grow crops　 62　 five times more people than land where animals are kept. Our natural resources will　 63　 longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth 64　 .

　　Finally, if we educate people to think about the problems, we shall have a better and clearer 65　 in the future.

A. beautiful         B. unlimited          C. rare                  D. valuable

A. common         B. the same            C. changeable     D. different

A. crowded         B. small                C. dirty                 D. busy

A. protecting       B. saving            C. polluting           D. fighting

A. may not          B. will not             C. shall not            D. could not

A. wonders         B. realizes             C. consider            D. discovers

A. poles              B. boats                 C. methods            D. ideas

A  mountains     B. the sea                  C. trees                 D. forests

A. continue         B. have                 C. ought                D. go on

A. grow            B. plant                 C. save                  D. cut down

A. Thus       B. However     

C. Generally speaking  D. Therefore

A. still                     B. even                 C. also                  D. certainly

A. too many      B. a few                C. some                 D. few

A. production    B. pollution           C. population      D. revolution

A. houses          B. vegetables      C. food                 D. lives

A. fruit             B. meat                 C. fish                   D. grain

A. feeds            B. increases           C. supplies             D. helps

A. use               B. stay                  C. keep                 D. last

A. control         B. born                 C. plan                  D. reward

A. nature           B. sea                 C. planet            D. forest