听下面一段材料,回答第1-3题. |
1. What have scientists discovered in the past 20 years? |
A. The strong effect of sleep and dreams. B. A good night's sleep makes a person less sleepy. C. Sleep and dreams don't affect the way people feel. |
2. Which of the following is true according to the passage? |
A. What happens in a dream is more important. B. The person who appears in a dream is more important. C. The dream character doesn't affect the person's performance during the day. |
3. What wiU make a person happier after sleeping? |
A. If he has enough sleep at night. B. Hhe dreams what he does during the day. C. If the special character appears in his dreams. |