閱讀測驗 Do you have trouble waking up in the morning? If you do, it may be
because you are not getting enough sleep. The American Academy of
Pediatrics (AAP) has declared that the frequent sleepiness of American
teenagers is a public health problem. Research shows that most students
don’t get enough sleep. Eighty-seven percent of high school students in
the U.S. are sleeping less than the recommended amount of 8.5 to 9.5
hours each night. However, high school seniors currently get less than 7
hours of sleep at night.
Part of the reason why teenagers don’t get enough sleep is because they
have to wake up very early for school. In the 2011-12 school year, 43
percent of American public high schools started before 8:00 a.m. If teens
aren’t getting enough sleep, can’t they just go to bed earlier? Studies
suggest that teenagers' bodies delay releasing “melatonin”, a hormone
that tells the body it’s time to go to sleep. This means that teens cannot
always fall asleep earlier because their body isn’t releasing the right
hormone. If teens cannot fall asleep earlier, the best solution may be to
allow them to wake up later for school. If school starts later in the
morning, the number of students who are absent may go down. It is
possible that this change may even improve students' performance in
school.
【題組】50. The best title for this passage would be__________ .
(A)How to Survive High School
(B) American Teenagers Need More Sleep
(C) Sleeping Less Equals More Time to Study
(D) How to Get Less Than 7 Hours of Sleep