27．It was reported that a boy ________.

　A. was found on a strange sofa, telling how he had got there

　B. slept in his own room but woke up in a strange room

　C. lost his way five hours after he left home

　D. was searched for by policemen for he lost his way

26．Generally speaking, sleepwalkers are the ones that ________.

　A. can climb on roofs

　B. can walk through windows

　C. can do fantastic things during their sleep

　D. can walk in a half-awake state

25．This selection was probably written to ________.

　A. show how lazy cats are

　B. talk about the habits of cats

　C. tell about famous people and their habits

D. persuade people to take naps

G

　There is an endless supply of stories about sleepwalkers (梦游者). Persons have been said to climb on roofs, solve mathematical problems, write music, walk through windows, and do murder in their sleep.

　In Revere, Massachusetts, a hundred policemen searched for a lost boy who left his home in his sleep and woke up five hours later on a strange sofa in a strange living room, with no idea how he had got there.

　At the University of Iowa, a student was reported to have the habit of getting up in the middle of the night and walking three quarters of a mile to the Iowa River. He would take a swim and then go back to his room to bed.

　An expert on sleep in America claims(声称)that he has never seen a sleepwalker. He is said to know more about sleep than any other man alive, and during the last thirty-five years he has lost a lot of sleep watching people sleep. He says, “Of course, I know that there are sleepwalkers because I have read about them in the newspapers. But none of my sleepers ever walked, and if I were to advertise for sleepwalkers for an experiment, I doubt whether I could get many takers. ”

　Sleepwalking, however, is a scientific reality. It is one of those strange things that sometimes look quite like the fantastic(怪诞的). Doctors say that sleepwalking is much more common than is generally supposed. Many sleepwalkers do not try to find help and are never recorded.

24．Naps usually last ________.

　A. three hours　　　　　　　 B. less than half an hour

　C. forty-five minutes　　　　　 D. fifty-five minutes

23．Which of the following statements is NOT true? ________.

　A. People should take their naps secretly

　B. Cats have the same moods as people

　C. Some famous people take cat naps

　D. Some people have full energy after they take cat naps

22．Taking cat naps ________.

　A. will make a person lazy and tired

　B. is a bad habit

　C. will make people feel better

　D. can help people to become famous

21．From this selection we know that cats ________.

　A. do not have regular sleep

　B. have occasional sleep as well as naps every day

　C. take naps to add to their regular sleep

　D. take naps when they are not happy

20. David Tebbett started Computertown UK with the purpose of ________.

　　 A. making better use of computer experts.

　　 B. increasing computer programs.

　　 C. increasing computer sales.

　　 D. popularising computers.

F

　Cats are creatures of habit. They like to go to sleep about the same time every day and for a certain length of time. They seem to have a natural clock inside them that tells them when to sleep. Cats increase their regular sleep with occasional cat naps(打盹). Some experts feel that humans could also benefit from this habit. Cat naps help to build up energy in the body. They are also a good way to get rid of trouble! Since cats have the same moods(情绪)as humans, some experts believe that people can improve their moods. People might become happier.

　A number of famous people have copied cats by taking cat naps during the day. The naps would usually last from 15 to 30 minutes. Winston Churchill took cat naps. So did Presidents Harry Truman, John F. Kennedy, and Lyndon B. Johnson. These famous men were known for their energy. They were also able to work long hours, often into the night. Napping was their secret.

19. The underlined word “it” in the second paragraph refers to the idea that Computertowns __________.

　　 A. help to set up more computer clubs.

　　 B. bring people to learn to use computers.

　　 C. bring more experts to work together.

　　 D. help to sell computers to the public.

18. We can infer from the text that “computer-literate” means ________.

　　 A. being able to afford a computer.

　　 B. being able to write computer programs.

　　 C. working with the computer and finding out its value.

　　 D. understanding the computer and knowing how to use it.