Passage 1

　　Questions 1 to 5 are based on the following passage:

　　In Kansas City, Missouri, a computer helps fire fighters. The computer contains information about every one of the 350,000 street addresses in the city. When fire-fighters answer a call, the computer will give them important information about the burning building: its position, size, type and so on. In fact, the computer system has almost unlimited ways of helping fire-fighters with the problems facing them. For instance, it can give medical information about invalids living in a burning building. (76)With this information, the fire-fighters can take special care to these sick persons and remove them quickly and safely.

　　The Kansas City computer system also keeps a medical record of each of the city's 900 fire-fighters. This kind of information is especially useful when a fireman is injured. With this medical information, doctors at the hospital can treat the injured fire-fighters more quickly and easily.

　　The fire-fighters themselves greatly appreciate the computer help. They know about possible dangers ahead of them and can prepare for them. Many times the computer information helps to save lives and property. Sometimes the lives are those of firefighters themselves!

　　1. Missouri is most likely the name of___

　　A. a well-known river in the United States of America

　　B. a city famous for its fire-fighting computer system

　　C. one of the fifty states of America

　　D. the head of the fire control information centers

　　2. The computer can give___

　　A. all useful and useless information about the city

　　B. valuable information about every resident in that city

　　C. useful information about every street address in the city

　　D. lively description about each building on fire

　　3. The computer center can__.

　　A. give the firemen important help in almost every way

　　B. have limited ways of helping fire-fighters

　　C. hardly give any useful information for the fire brigade (消防队)

　　D. put out every fire automatically

　　4. "Invalid" means a person who___

　　A. is badly burned or injured

　　B. is trapped by fire

　　C. has become very weak through illness or injury

　　D. is helped out by fire-fighters

　　5. If injured, the fireman will _ .

　　A. be treated immediately with the computer's help

　　B. hardly get proper treatment with the help of the information given by the centre

　　C. appreciate the computer help very much

　　D. ask doctors and nurses for help

　　Passage 2

　　Questions 6 to 10 are based on the following passage:

　　During the rest of sleep, the fatigue (疲劳) of the body disappears. The tired mind gathers new energy; the memory improves; and problems are seen in better perspective, (观点) .

　　Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily, the amount gradually going less as they grow' older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people are reputed to have required little sleep. Napoleon Bonaparte, Thomas Edison, and Charles Darwin apparently averaged only four to six hours a night.

　　(77)Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed, a favorite posture (姿势), and a formula (程式) you need to follow in order to rest comfortably.

　　(78) Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight clays have died of exhaustion. The limit for human beings is probably about a week.

　　6. The writer in(plies that _____ .

　　A. sleep is important for good menial and physical heath

　　B. a light sleep is as restful as a deep sleep

　　C. memory is improved during sleep

　　D. sleep is relatively unimportant for human beings

　　7. From the amount of sleep Napoleon, Edison, and Darwin required, we can conclude_____.

　　A. that they were famous

　　B. that they were executives

　　C. that they were intelligent

　　D. None of the above

　　8. The amount of sleep required may _____

　　A. vary greatly from one individual to another

　　B. depend on an individual’s age

　　C. be related to an individual's occupation

　　D. All of the above

　　9. If a person is not allowed to follow his before-sleep routine, he will probably_____ .

　　A. not sleep well I3. never fall asleep

　　C. lose his memory D. begin to daydream

　　10. The longest time a human being can survive without sleep is probably_____ .

　　A. five days 13. seven days

　　C. ten days D. twelve days