16大赛高中第二套完形
Teenagers who spend more time watching TV, using iPads and playing electronic games take longer to fall asleep and get poorer quality rest. A new study suggests the 1 in use of electronic media devices by children could 2 physical and mental health.
The 16-19-year-olds were asked how much screen time they 3 outside school hours, and on what activities,for any of six electronic 4 : computer; smartphone; Mp3 player; and TV. They were also asked 5 about their sleep routine on weekdays and at weekends: when they normally went to bed and 6 up; how much sleep they needed to feel relaxed;and how 7 it took them to get to sleep.
The study found 8 quality sleep was linked to more time spent on such devices, and it 9 took more than an hour to drop off. Total daytime screen use of more than four hours was linked to a 49 per cent greater 10 of taking longer than 60 minutes to 11 .
On average, the teens said they needed 8-9 hours of sleep to feel 12 .But those who spent more than two 13 emailing or chatting online were more than three times as likely to 14 for less than five hours. Those 15 more than four hours in front of any screen were 3.5 times as 16 to sleep for less than five hours. Computers were the device that cause most 17 because many children are addicted in computer games.
Dr MariHysing said 18 use may simply replace sleeping time or it may 19 sleep by stimulating the nervous system. It is also 20 that the light from electronic devices may change a teenager's body clock.
1.-
A growth
B strength
C faith
D truth
解析：选A。从文章第一句Teenagers who spend more time watching TV, using iPads and playing electronic games take longer可以得知孩子用在屏幕前的时间增加了，据此可以得知的学生对电子产品的使用“增长”，使用此处要用growth。
2.-
A improve
B harm
C punish
D support
解析：选B。根据文章第一段第一句的playing electronic games take longer to fall asleep and get poorer quality rest可以得知花费更长的时间入睡，因此也就“伤害”他们的健康了。
3.-
A attached
B impressed
C spent
D shared
解析：选C。根据第三段第一句的quality sleep was linked to more time spent on such devices可知研究者询问他们在校外“用”了多少时间，所以此处要用spent。
4.-
A devices
B books
C tapes
D dishes
解析：选A。从第3题后面的computer; tablet, smartphone; Mp3 player; games console; and TV可以得知他们想知道用在那些“设备”上的时间。
5.-
A speeches
B sayings
C words
D questions
解析：选D。从后面的when和how可以得知研究者问那些人一些“问题(questions)”。
6.-
A took
B cut
C got
D picked
解析：选C。和前面went to bed相对应的是“起床”，所以此处要用got up。
7.-
A long
B much
C far
D silly
解析：选A。根据第三段最后一句的taking longer than 60 minutes to fall asleep可以得知他们此处问他们需要多“长(long)”时间才能入睡。
8.-
A deeper
B higher
C poorer
D better
解析：选C。根据文章第一段第一句后半部分的and get poorer quality rest可知花费在电子产品上的时间过多会导致“睡觉质量差相联系的”。
9.-
A never
B once
C seldom
D often
解析：选A。如果在电子产品上的时间用的过长，他们“经常”会用一个多小时的时间入睡。
10.-
A step
B risk
C charge
D control
解析：选B。从前面的条件Total daytime screen use of more than four hours可以如果用电子产品超过四个小时，睡不着的“风险”会增大，所以此处要用risk。
11.-
A stand up
B come out
C fall asleep
D pick up
解析：选C。根据第三段第一句的quality sleep was linked to more time spent on such devices, and it可以的得知在电子设备上用的时间过多，因此很难“入睡”。学生对pick up的意思理解出现问题，他们可能认为此处是“花费60分钟理解”而误选D。
12.-
A corrected
B supported
C amazed
D refreshed
解析：选D。根据第6题后面的how much sleep they needed to feel rested可知他们需要八九个小时才能“恢复精力”，所以此处要用refreshed。
13.-
A years
B months
C weeks
D hours
解析：选D。根据下面的for less than five hours可以得知是花费两个“小时”的时间在电子产品上，所以此处要用hours。
14.-
A eat
B stand
C sleep
D study
解析：选C。他们的睡眠时间会少于五个小时，此处他们说的“睡眠”，所以此处要用sleep。
15.-
A wasting
B sharing
C spending
D reducing
解析：选C。根据文章第一句的Teenagers who spend more time watching可以得知“花费”在屏幕前是时间，所以此处要用spending。
16.-
A unable
B unwilling
C likely
D anxious
解析：选C。玩电子产品超过四个小时的他们睡眠的不足的可能性会更大，所以此处要用likely。
17.-
A diseases
B solutions
C problems
D researched
解析：选C。因为孩子沉迷电脑游戏，因此电脑带来的问题带来更多的“问题”，所以此处要用problems。
18.-
A vehicle
B screen
C furniture
D medicine
解析：选B。根据第三题前面的The 16-19-year-olds were asked how much screen time they可以得知此处讲述的是在屏幕前的时间的问题，所以此处要用screen。
19.-
A control
B affect
C bring
D find
解析：选B。从后面的by stimulating the nervous system可知在屏幕前是时间“影响睡眠”，所以此处要用affect。
20.-
A normal
B necessary
C pleasant
D possible
解析：选D。来自电子产品的光线影响孩子的生物钟是“可能的”，所以此处要用possible。