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Do you know how much your children sleep?
According to the National Sleep Foundation,       should sleep twelve to eighteen hours       of every twenty-four. With a gradual        to twelve to fourteen hours for toddlers(初學走路的孩子) one to three; eleven to thirteen hours for        three to five; and ten to eleven hours for schoolchildren        five to ten.
But things get really      at adolescence. Not only do teenagers need more sleep than    __---eight and a half to nine and a quarter hours a night, according to the sleep foundation - but the times          which they get sleepy and are able to awaken         and feel rested shift in a       that does not match to the       times at most schools.
Sleep studies have shown that the typical teenager does not fall asleep readily before 11 p. m. or later.       many have to get up by 6 a. m. or         to get to school for a class         starts at 7:30 or 8 a.m. More than a few        off during that class, and often the         one as well. Even if awake, they're in no condition to learn much of anything.
In one study, more than 90 percent of teenagers        they slept less than the          nine hours a night, and 10 percent said they slept less than six hours.
      _ James B. Maas, a Cornell University psychologist and Leading sleep researcher, has observed, most teenagers are "walking zombies(僵尸)"        they get far too little sleep.
小題1:
A．childrenB．newbornsC．eldersD．youngsters
小題2:
A．fromB．withC．outD．up
小題3:
A．reductionB．increaseC．growthD．improvement
小題4:
A．teenagersB．studentsC．babiesD．preschoolers
小題5:
A．relatedB．separatedC．agedD．varied
小題6:
A．demandingB．challengingC．satisfyingD．encouraging
小題7:
A．adultsB．toddlersC．babies D．schoolchildren
小題8:
A．inB．onC．atD．for
小題9:
A．excitedlyB．earlyC．casuallyD．naturally
小題10:
A．formB．meansC．methodD．way
小題11:
A．endB．startC．holidayD．examination
小題12:
A．SinceB．ForC．YetD．Then
小題13:
A．nicerB．earlierC．cleanerD．better
小題14:
A．thatB．itsC．whatD．whose
小題15:
A．putB．takeC．dozeD．cut
小題16:
A．nextB．otherC．lastD．new
小題17:
A．examinedB．surveyedC．reportedD．convinced
小題18:
A．regulatedB．recommendedC．analyzedD．reported
小題19:
A．LikeB．SinceC．AsD．Furthermore
小題20:
A．becauseB．whichC．whileD．still

小題1:B
小題2:C
小題3:A
小題4:D
小題5:C
小題6:B
小題7:A
小題8:C
小題9:D
小題10:D
小題11:B
小題12:C
小題13:B
小題14:A
小題15:C
小題16:A
小題17:C
小題18:B
小題19:C
小題20:A

試題分析：文章介紹不同年齡階段的人需要的睡眠時間不同，特別指出年輕人的睡眠嚴重不足。
小題1:考查名詞：A. children兒童，B. newborns新生兒，C. elders老年人，D. youngsters年輕人，從下文的：With a gradual   43   to twelve to fourteen hours for toddlers(初學走路的孩子) one to three; eleven to thirteen hours for   44   three to five;可知一開始是說新生兒，選B
小題2:考查介詞辨析：A. from來自，B. with和，C. out外面，D. up向上，新生兒在每天的24小時中應該睡12到18小時，out of…在…里面，選C
小題3:考查名詞：A. reduction減少，B. increase增加，C. growth增長，D. improvement提高，初學走路的孩子逐漸減少到12-14小時，選A
小題4:考查名詞：A. teenagers年輕人，B. students學生，C. babies嬰兒，D. preschoolers學齡前兒童，從下文的：schoolchildren   45   five to ten.可知三到五歲的學齡前兒童是11-13小時，選D
小題5:考查動詞辨析：A. related聯(lián)系，B. separated分離，C. aged年齡，D. varied不同，年齡在5-10歲的學生應該睡10-11小時。Aged做定語修飾schoolchildren，選C
小題6:考查形容詞辨析：A. demanding苛刻的，困難的，B. challenging有挑戰(zhàn)的，C. satisfying令人滿意的，D. encouraging令人鼓舞的，從下文的內容，可知對年輕人來說事情是有挑戰(zhàn)的。
選B
小題7:考查名詞：A. adults成年人，B. toddlers學步的小孩，C. babies嬰兒，D. schoolchildren學生，年輕人需要比成年人更多的睡眠，選A
小題8:考查介詞辨析：A. in在…里面，B. on在…上面，C. at在…地方，D. for為了，而且他們感到困的時間，at修飾times，選C
小題9:考查副詞辨析：A. excitedly令人興奮地，B. early早的，C. casually隨意地，D. naturally自然地，和能夠自然醒來的時間，選D
小題10:考查名詞： A. form形式，B. means意味著，C. method方法，D. way道路，方式，感到困的時間，能夠自然醒來的時間和感到要休息的時候轉換的方式和大多數(shù)學校開始的時候是不相配的，選D
小題11:考查名詞：A. end結束，B. start開始，C. holiday假期，D. examination檢查，這里指學校開始上課的時間，選B
小題12:考查連詞辨析：A. Since自從，B. For為了，C. Yet然而，D. The然后，很多年輕人在晚上11點前是不能入睡的，但是他們在早上6點或更早要起床去上課。表示轉折關系，選C
小題13:考查形容詞辨析：A. nicer更好，B. earlier更早，C. cleaner更干凈，D. better更好，這里指比6點更早，選B
小題14:考查定語從句，先行詞是a  class，定語從句中缺少主語，用that引導定語從句，選A
小題15:考查動詞辨析：A. put放，B. take拿走，C. doze 打盹兒，打瞌睡，D. cut切割，很多學生在上課的時候會打盹，選C
小題16:考查形容詞辨析：A. next下一個，B. other其他的，C. last最后的，D. new新的，下一節(jié)課也會打盹，選A
小題17:考查動詞辨析：A. examined檢查，B. surveyed調查，C. reported報告，D. convinced使…相信，在一個調查中，超過90%的年輕人報告他們的睡眠時間少于推薦的9個小時。選C
小題18:考查動詞辨析：A. regulated調節(jié)，調整，校準，控制，B. recommended推薦，C. analyzed分析，D. reported報告，專家推薦年輕人每晚睡眠是9小時，選B
小題19:考查詞義辨析：A. Like象，B. Since自從，C. As因為，正如，D. Furthermore還有，正如James B. Maas觀察的那樣，大多數(shù)年輕人象行走的僵尸，選C
小題20:考查連詞：A. because因為，B. which哪里，C. while然而，D. still仍然，因為他們太困了，選A
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A．funnyB．commonC．terribleD．clear
小題2:
A．admitB．receive　　　C．refuse　　　　D．show
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A．quarrel　　　B．accident　　　C．trouble　　 　D．adventure
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A．already　　　B．always　　　　C．simply　　　 　D．hardly
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A．warn　　　　　B．demand　　　　C．advise　　　D．beg
小題7:
A．mind　　　　　B．hear　　　　　C．see　　　　　D．fall
小題8:
A．expectedB．declared　　　C．realized　　 　D．doubted
小題9:
A．Because ofB．Except for 　C．Such as 　　 　D．Instead of
小題10:
A．died 　　　　B．cheered 　　　C．disappeared　　D．suffered
小題11:
A．meetB．avoid　　　　C．arrange 　　 　D．hide
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小題13:
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A．and then 　　B．even if　　　C．so thatD．as if
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A．sell products to readers
B．join the author’s company
C．give some advice to readers
D．get help from readers

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