三、还原信息
Did you have a good sleep last night? March 21 is World Sleep Day. (1)________
Sleep is important because it gives our bodies time to recover (恢复) from stress (压力). (2)________ About 62% of adults (成人) in the world feel that they don’t sleep well. In China, about 50 million to 60 million people have sleep problems.
Losing just one or two hours of sleep every night can affect (影响) us. A researcher (研究员) said, “If you don’t get enough sleep at night, you might sleep at school. (3)________”
How to sleep well? Having good sleeping habits is important. (4)________ They may make you too excited to fall asleep. Try to go to sleep and wake up at the same time every day, even on weekends and during holidays.
A. Stop using digital devices (电子设备) for at least an hour before sleep.
B. If you’re asleep in class, you won’t learn anything.
C. It’s a good time to think about our sleeping habits (习惯) and get more sleep.
D. But today, heavy stress and the habit of using smart phones before bedtime make people lose sleep.
E. Don’t sleep as long as you can.
F. Using digital devices can make you tired and fall asleep easily.

1−4 CDBA