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六级阅读考前补习（6）
Test Six??
1?
Sometimes the U.S. government goes out of its way to prove it can be an absolute nuisance. Take the case of Southern Clay, Inc., which has a factory at Paris, Tennessee, putting out a clay product for cat?boxes best known as “Kitty Litter.”?It’s a simple enough process, but the Federal Mine Safety and Health Administration insists that since clay comes from the ground―an excavation half a mile from the Kitty Litter plant―the company actually is engaged in mining and milling. Therefore, says MSHA, Southern Clay is subject to all the rules that govern, say, coal miners working in shafts several hundred feet down.?
The company has been told to devise an escape system and fire?fighting procedure in case there is a fire in its “mine.” Southern Clay estimates it will lose 6,000 man?hours in production time giving its 250 factory workers special training in how to escape from a mine disaster.?
One thing that has always impressed us about cats, in addition to their tidiness, is that they seem to watch the human world with a sense of wise and detached superiority, as though they wondered what the hustle and bustle is all about. If they grin from time to time, as some people insist, it’s no wonder.
1. The author’s purpose in writing this passage is to ____.?
A. explain how Kitty Litter is produced?
B. describe the Mine Safety and Health Administration?
C. show how tidy cats are?
D. show that the government can sometimes be a nuisance?
2. The clay excavation is ____.?
A. half a mile underground?
B. several miles from Paris, Tennessee?
C. worked by miners in shafts several hundred feet down?
D. half a mile from the Kitty Litter plant?
3. What is the meaning of “man?hour”??
A. The time needed in finishing the work by one man.?
B. The work done by one man in one hour.?
C. The man needed in finishing the work in one hour.?
D. The work done by one man
六级阅读考前补习（4）
Test Four
1
Running a fever was once thought to be the prerogative of warmblooded creatures, whose internal temperatures are indpendent of the weather. But, as Matthew Kluger reported in “The Importance of Being Feverish” (January 1976), lizards can also develop fevers, even though there is no question that they are coldblooded. They raise their temperatures by moving into the sun or, in the case of Kluger’s experiments, under a sun lamp. And it seems to do them some good. Sick lizards kept in cages at feverish temperatures fare much better than their counterparts in normal and cool environments.
?Now, fever has spread to invertebrates(无脊椎动物). Recent studies have shown that crayfish and scorpions can develop fevers. Crayfish injected with bacteria and scorpions injected with prostaglandins(前列腺素) swam and scuttled to hot areas. (Prostaglandins are hormones thought to be instrumental in the development of a fever.)
?Evidence is also mounting that moderate fevers have their benefits, which might explain why the fever process is so widespread. Leukocytes, white blood cells that are active in fighting bacterial infections, are more mobile at febrile temperatures. And fevers reduce the amount of iron available to bacteria. That reduction, combined with high temperatures, has been shown to inhibit bacterial growth.
1. Which of the following best states the main idea of the passage??
A. Coldblooded animals can develop fevers.?
B. There are benefits to developing fevers.?
C. Fevers inhibit bacterial growth.?
D. Lizards can develop fevers.?
2. Fevers cause ____.?
A. prostaglandins to be formed?
B. iron to be made available to bacteria?
C. leukocytes to be more mobile?
D. lizards to be coldblooded animals?
3. Which of the following statements is true??
A. Developing fever is the privilege of warm?blooded animals, so sick lizards can not run a fever.?
B.
六级阅读考前补习（2）
Test Two
1
In the primary school, a child is in a comparatively simple setting and most of the time forms a relationship with one familiar teacher. On entering secondary school, a new world opens up and frequently it is a much more difficult world. The pupil soon learns to be less free in the way he speaks to teachers and even to his fellow pupils. He begins to lose gradually the free and easy ways of the primary school, for he senses the need for a more cautious approach in the secondary school where there are older pupils. Secondary staff and pupils suffer from the pressures of academic work and seem to have less time to stop and talk. Teachers with specialist roles may see hundreds of children in a week, and a pupil may be able to form relationships with very few of the staff. He has to decide which adults are approachable; good schools will make clear to every young person from the first year what guidance and personal help is availableDbut whether the reality of life in the institution actually encourages requests for help is another matter.?
Adults often forget what a confusing picture school can offer to a child. He sees a great deal of movement, a great number of peopleDoften rather frightening?ooking peopleDand realises that an increasing number of choices and decisions have to be made. As he progresses through the school the confusion may become less but the choices and decisions required will increase. The school will rightly expect the pupil to take the first steps to obtain the help he needs, for this is the pattern of adult life for which he has to be prepared, but all the time the opportunities for personal and group advice must be presented in a way which makes them easy to understand and within easy reach of pupils.
1.According to the passage one of the problems for pupils entering secondary schools is that ____.?
A.they are taught by many different teachers?
B.they do not attend lessons in every subject
六级阅读考前补习（3）
Test Three
1
A well?stablished distinction in memory theory is that between short?erm and long?erm memory. The former refers to our ability to do such things as remember telephone numbers long enough to dial them; the latterDconcerns the wide range of ways in which experiences can affect behavior many years later. Given the two different kinds of ability, it is reasonable to hypothesize that each is represented differently in the brain. An experiment was designed to test the hypothesis that long?erm memory implies a chemical change in the brain cells while short?erm memory involves patterns of impulses in circuits of nerve cells.?
One group of rats were taught to run through a maze. Five minutes after learning the task, they were cooled to 5℃, the temperature at which all electrical activity in the brain ceases. They were then kept at this temperature for 15 minutes before being allowed to return to their normal temperature. They were then run through the maze, again.?
A second group of rats were taught to run the same maze, and then immediately cooled to 5℃ for 15 minutes. After being allowed to return to their normal temperature, an attempt was made to run the second group through the maze again. It was found that rats in the first group had no difficulty with the maze the second time, suggesting that they did not have to relearn the task. Rats in the second group which was cooled immediately after learning the maze, on the other hand, could not negotiate the maze successfully, i.e., they apparently could not remember what they had learned.?
It was concluded from this experiment that short?erm memory (in rats, at least ) is unlike long?erm memory. Short?erm memory involves electrical impulses since at a temperature where electrical activity ceases, there is no memory. Long?erm memory, in contrast, is unaffected by the disruption of electrical activity and may involve structural changes in brain cells.
1. What is the main idea of thi
六级阅读考前补习（5）
Test Five
1?
It was a cold, rainy and wholly miserable afternoon in Washington, and a hot muggy night in Miami. It was Sunday, and three games were played in the two cities. The people playing them and the people watching them tell us much about the ever?changing ethnic structure of the United States.?
Professional football in the United States is almost wholly played by native?born American citizens, mostly very large and very strong, many of them black. It is a game of physical strength. Linemen routinely weigh more than 300 pounds. Players are valued for their weight and muscles, for how fast they can run, and how hard they can hit each other. Football draws the biggest crowds, but the teams play only once a week, because they get so battered.?
The 67,204 fans were in Miami for the final game of the baseball World Series. Baseball was once America’s favourite game, but has lost that claim to basketball.?Baseball is a game that requires strength, but not hugeness. Agility, quickness, perfect vision and quick reaction are more important than pure strength. Baseball was once a purely American game, but has spread around much of the New World.In that Sunday’s final, the final hit of the extra inning game was delivered by a native of Columbia. The Most Valuable Player in the game was a native of Cuba. The rosters of both teams were awash with Hispanic names, as is Miami, which now claims the World Championship is a game that may be losing popularity in America, but has gained it in much of the rest of the world. Baseball in America has taken on a strong Hispanic flavor, with a dash of Japanese added for seasoning.?
Soccer, which many countries just call football, is the most widely enjoyed sport in the world, In soccer, which many countries just call football, the ethnic tide has been the reverse of baseball’s. Until recently, professional soccer in the United States have largely been an import, played by South Americans and Europeans
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