题目内容
9.Nowadays the U.S.students are sleepy in school because they spend too much time texting,playing video games,watching TV and using the media in other ways."Heavy media use interferes with sleep by reducing sleep duration,making it harder to fall asleep,and lowering sleep quality,"Meilan Zhang,an assistant professor at the University of Texas at El Paso,wrote in her research review in the journal,Sleep Medicine.
But the relationship between youth's media use and sleep is not so simple,said Michael Gradisar,who authored both that review and the Sleep Medicine meta-analysis."Technology use is the new evidence when we are trying to answer‘Why are school-age children sleeping less?'"said Mr.Gradisar,an associate professor of psychology at Flinders University in Adelaide,Australia.
There may be safe limits to technology use,Mr.Gradisar stated.For instance,recent research results indicate that using a bright screen for an hour before bed or even playing violent video games for less than that will not necessarily interfere with teenagers'sleep,he wrote.
But longer periods of usage can be harmful to sleep,Mr.Gradisar added.Rather than delaying school start times,he said,the first step should be educating parents about limiting the hours that their children are using technology before bed,and enforcing a consistent bedtime.
Early school start times are also commonly blamed for students'sleepiness,especially for adolescents.Secondary schools around the nation and the world have been delaying start times,often with positive results.
Mr.Minnich of the TIMSS and PIRLS International Study Center hesitated to put blame to any particular factor.But he did think that cost-saving measures to consolidate(合并)bus routes might help explain U.S.students'sleepiness.
"For those children who board the bus first,they must get up earlier,may end up sleeping on the way to school,and may end up arriving at school sleepy."he said.
13.Which of the following may be the good way to help kids sleep better?C
A.Parents should be well educated.
B.Technology is forbidden at home.
C.Their playing time must be limited.
D.They are allowed to go to school early.
14.What would be the factors that cause kids sleep troubles according to the textC
a.Using the media.
b.Having breakfast.
c.Catching the bus.
d.The school timetable.
e.Doing too much homework.
A.a,d,e B.b,c,d
C.a,c,d D.b,d,e
15.Which of the following may be the best title for the text?D
A.Kids benefit a lot from technology.
B.Several sleep troubles appear at school.
C.Some tips can help kids sleep well.
D.Several factors affect kids'sleep.
分析 本文属于生活类阅读,现在美国的孩子由于过度使用媒体设备,睡眠时间较短,睡眠的质量也较差.作者在文章中分析了这一现象的原因.
解答 13.C.推理判断题.根据文章第五段第一句But longer periods of usage can be harmful to sleep,Mr.Gradisar added.可知长时间使用媒体设备会对学生的睡眠有害.所以本周孩子取得良好睡眠的最好方法就是限制使用媒体设备的时长.故C正确.
14.C.细节理解题.根据最后一段"For those children who board the bus first,they must get up earlier,may end up sleeping on the way to school,and may end up arriving at school sleepy可知使用媒体,赶上公共汽车,学校时刻表会导致孩子睡眠困难;故选C.
15.D.标题概括题.根据文章第一段Nowadays the U.S.students are sleepy in school because they spend too much time texting,playing video games,watching TV and using the media in other ways.可知可知本文告诉我们美国学生在学校很困,主要是因为他们把太多的时间花在了发信息,玩游戏,看电视以及用其他方法玩媒体上.接着就分析了这些媒体设备影响孩子们睡眠的情况.故D项正确.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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