【正文】
en years. People with a “sleep deficit” are sleepdeprived. Driving and making decisions can be dangerous for these people. Another research shows people should sleep nine or ten hours every night. More than half the people in the world may be running a “sleep deficit”. You didn’t do your homework last night? Maybe you can tell your teacher that you were working hard on your sleep deficit. “Don’t think you will be doing less work because you sleep during the day. That’s a foolish idea which is held by people who have no imagination. You will be able to do more, ” said Winston Churchill. ( )1. How many hours do we need to sleep every day if we want to keep healthy? A. 7. B. 8. C. 11. D. 12. B ( )2. What does the underlined word “sleepdeprived” mean? A. Easily sleepy. B. Having difficulties falling asleep. C. Short of sleep. D. Afraid of sleeping. ( )3. From the passage we know sleepdeprived people ________. A. are easily tired B. most likely cause traffic accidents C. can have both mental and medical problems D. have all the above problems C D ( )4. What Winston Churchill said means ________. A. sleep more during the day, work more at night B. sleep during the day influences yo