阅读理解。
"Just five more minutes." "I'm tired!" "I can't get up." If you have ever had trouble getting up in the
morning, you are not alone. Many kids in the United States do not get enough sleep.
Your body needs sleep-and lots of it! "Evidence (证据) shows that elementary-age children need at
least nine hours of sleep per night," said sleep expert Dr. Carl Hunt.
Kids who do not sleep enough cannot do their best, experts say. A tired kid may be moody and act
badly. Being tired can also cause kids to forget things, have trouble learning, and have trouble playing
sports.
Not sleeping enough can also affect kids' safety. Experts say children who are tired are more likely
to suffer injuries.
Lots of kids lose sleep because they are busy. Many take part in after-school activities. Then they
go home, eat dinner, and do homework. Afterward, many kids watch TV, play video games, and surf
the Internet. That leaves less time for sleep.
Sometimes you may not be able to go to bed early. But, if you get a choice whether to stay up late,
think twice. A good night's sleep can help you feel your best!
1. What is the best title for this story?[ ]
A. Kids Need More Sleep
B. Turn off the TV
C. Children Dream
D. Kids Have Busy Lives
2. According to the story, what is the main reason many kids do not get enough sleep? [ ]
A. They are afraid of the dark.
B. They are busy all day.
C. They get up early to do their homework.
D. They stay up late reading.
3. How could a good night's sleep help you feel your best? [ ]
A. You may be less moody.
B. You may have an easier time learning.
C. You may be less likely to get injured.
D. All of the above.