People do not analyze every problem they meet. Sometimes they try to remember a solution from the last time they had a   21  problem. They often accept the opinion or ideas of other people. Other times they begin to act without   22 ；they try to find a solution by trial and error.   23  .，when all of these methods   24  ，the person with a problem has to start analyzing. There are six    25  in analyzing a problem.

   26  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 see that there is a problem with his bicycle.

Next the person must   27   the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must determine the parts that are wrong.

Now the person must look for   28  that will make the problem clearer and lead to  possible solutions. For example, suppose Sam   29   that his bike does not work because there is some thing wrong with the brakes(刹车).   30  , he can look in his bicycle repair book and read about brakes,   31  his friends at the bike shop, or look at his brakes carefully.

After studying the problem, the person should have   32  suggestions for a possible solution. Take Sam as an example   33 ，his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.

In the end, one   34  seems to be the solution to the problem. Sometimes the __35__ idea comes quite   36  because the thinker suddenly sees something new or sees something in a   37   way. Sam, for example, suddenly sees there is a piece of chewing gum（口香糖）stuck to a brake. He   38   finds the solution to his problem ：he must___39___the brake.

Finally the solution is tested .Sam finds that his bicycle   40  perfectly. In short he has solved the problem.

完形填空

　　People do not analyse(分析)every problem they meet. Sometimes they try to remember a solution from the last time they had a (1) problem. They often accept the opinion or ideas of other people. Other times they begin to act without (2) ;they try to find a solution by trial and error (3) ,when all of these methods fail , the person with a problem has to start analysing. There are six (4) in analysing a problem.

　　 (5) the person must recognise that there is a problem. For example, Sam' s bicycle is broken, and he cannot fide it to class as he usually does. Sam must (6) that there is a problem with his bicycle.

　　Next the person must (7) the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must (8) the parts that are wrong.

　　Now the person must look for (9) that will make the problem clearer and lead to (10) solutions. For example, suppose Sam (11) that his bike does not work because there is something wrong with the brakes. (12) he can look in his bicycle repair book. and read about brakes, (13) his friends at the bike shop, or look at his brakes carefully. After (14) the problem, the person should have (15) suggestions for a possible solution. Take Sam as an example (16) , his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.

　　In the end, one (17) seems to be the solution to the problem. Sometimes the final idea comes quite unexpectedly because the thinker suddenly sees something in a (18) way. Sam , for example, suddenly sees there is a piece of chewing gum stuck to a brake. He immediately hits on the solution to his problem: he must (19) the brake.

　　Finally the solution is (20) . Sam does it and finds his bicycle works perfectly. In short he has solved the problem.

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完形填空

　　People do not analyse(分析)every problem they meet. Sometimes they try to remember a solution from the last time they had a (1) problem. They often accept the opinion or ideas of other people. Other times they begin to act without (2) ;they try to find a solution by trial and error (3) ,when all of these methods fail , the person with a problem has to start analysing. There are six (4) in analysing a problem.

　　 (5) the person must recognise that there is a problem. For example, Sam' s bicycle is broken, and he cannot fide it to class as he usually does. Sam must (6) that there is a problem with his bicycle.

　　Next the person must (7) the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must (8) the parts that are wrong.

　　Now the person must look for (9) that will make the problem clearer and lead to (10) solutions. For example, suppose Sam (11) that his bike does not work because there is something wrong with the brakes. (12) he can look in his bicycle repair book. and read about brakes, (13) his friends at the bike shop, or look at his brakes carefully. After (14) the problem, the person should have (15) suggestions for a possible solution. Take Sam as an example (16) , his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.

　　In the end, one (17) seems to be the solution to the problem. Sometimes the final idea comes quite unexpectedly because the thinker suddenly sees something in a (18) way. Sam , for example, suddenly sees there is a piece of chewing gum stuck to a brake. He immediately hits on the solution to his problem: he must (19) the brake.

　　Finally the solution is (20) . Sam does it and finds his bicycle works perfectly. In short he has solved the problem.

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Jogging has become the most popular individual sport in America．Many theories have been put forward to explain the popularity of jogging．The truth is that jogging is a cheap, quick and efficient way to achieve physical fitness．

The most useful sort of exercise is exercise that develops the heart, lungs, and circulatory （循环）systems．If these systems are fit, the body is ready for almost any sport and for almost any sudden demand made by work or emergencies．Running trains your heart and lungs to deliver oxygen more efficiently to all parts of your body．It is worth noticing that this sort of exercise is the only kind that can reduce heart disease, the number one cause of death in America．

The only equipment that is needed is a good pair of shoes．Physicians advise beginning joggers not to run in tennis or gym shoes．A good running shoe will give the knee and ankle（脚踝）more stability（稳定性）．Wearing good shoes will prevent the foot, ankle and knee injures and will also enable the wearer to run on different surfaces．

No other special equipment is needed; you can jog in any clothing you want, even in your street clothes．Many joggers wear expensive, flashy warm–up suits, but many people just wear a simple T-shirt or jog in last year’s clothes．In cold weather, several layers（层） of clothing are better than one heavy sweater or coat．If joggers are wearing several layers of clothing, they can add or take off layers as conditions change．

    It takes surprisingly little time to develop the ability to run．The American Jogging Association has a twelve–week program designed to move from a fifteen–minute walk （which almost anyone in reasonable health can manage） to a thirty-minute run．A measure of common sense, a physical examination, and a planned schedule are all it takes．

1．The main purpose of this passage is to         ．

A．discuss jogging as a physical fitness program
B．describe the type of clothing needed for jogging

C．provide scientific evidence of the benefits of jogging

D．promote some shoes for jogging

2．Which of the following is the only special equipment that joggers need?

A．Good shoes．  B． Street clothes．    C．Expensive suits．    D． Warm-up trousers．

3．The most useful kind of exercise is exercise that         ．

A．trains the body for weight lifting
B．enables a person to run ahead with great power

C．is both beneficial and inexpensive

D．develops the heart, lungs, and circulatory systems

4．We can conclude from this passage that         ．

A．because of jogging, heart disease is no longer an American problem
B．jogging can be harmful if the runner is not properly prepared
C．warm–up suits are better than T-shirts for jogging
D．jogging is bad for your heart and lungs

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．However, when all of these methods   38  , the person with a problem has to start analyzing．There are six   39   in analyzing a problem．

       First 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   40  that there is a problem with his bicycle．

       Next the person must  41  the problem．Before Sam can repair his bicycle, he must know why it does not work．For example, he must   42   the parts that are wrong．

       Now the person must look for   43   that will make the problem clearer and lead to  44 ．   solutions．For example, suppose Sam   45   that his bike does not work because there is something wrong with the brakes．At this time, he can look in his bicycle repair book and read about brakes, talk to his friends at the bike shop, or look at his brakes carefully．

       After  46  the problem, the person should have  47  suggestions for a possible solution．Take Sam as an example   48  , his suggestions might be: tighten or loosen the brakes, buy new brakes and change the old ones．

       In the end, one   49   seems to be the solution   50   the problem．Sometimes the  51   idea comes quite  52  because the thinker suddenly sees something new or sees something in a          53   way．Sam, for example, suddenly sees there is a piece of chewing gum stuck to a brake．He immediately 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．

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

A．practising     B．thinking       C．understanding D．helping

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

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

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

A．judge        B．find         C．describe        D．face

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

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

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

A．hopes     B．argues          C．decides        D．suggests

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

A．exact       B．enough        C．several         D．countless

A．once        B．again           C．also         D．alone

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

A．with        B．into         C．for             D．to

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

A．unexpectedlyB．late         C．clearly          D．often

A．simple        B．different     C．quick           D．sudden

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

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