1. The passage tells us ______. 　 A. the importance of reading 　 B. to read in the morning 　 C. to pay attention to the ways of studying 　 D. to have patience in studying

4. The best title for the passage is ___________. 　 A. How can You Get a Good Sleep 　 B. The Strangeness of Sleep 　 C. What Happens During Sleep 　 D. The Causes of Dream

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3. You would feel tired during sleep if you ___________. 　 A. moved too often　 B. slept on your back 　 C. didn't move　　　 　 D. went to sleep late

2. The best conditions for sleep are ___________. 　 A. good health 　 B. a meal neither too big nor too small 　 C. no worries 　 D. good health，limited meal，no worries and a good place

1. Sleep puzzles scientists because they are not certain ___________. 　 A. why one can't fall asleep　 B. why one wakes up 　 C. both A and B　　　　　　　　　　 　 D. what causes sleep

6. The information above is about the history of the development of modern science. 　 T 　 F

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5. Genetic engineering can help doctors to cure illnesses. 　 T 　 F

4. Electrical appliances will save 50% of power because they are controlled by computer. 　 T 　 F