【文章內(nèi)容簡介】 chooling is good, more has to be much better. But contrary evidence is beginning to mount up.( )41. Which of the following is NOT true according to the passage?A .About half of the high school graduates continue their studies in colleges.B .College graduates are believed to be more responsible than others.C .College administrators often encourage students to drop out.D .More and more people find themselves unfit for college.( ) of the following is NOT observers’ opinion?A .The young people expect too much, it is no wonder that they are not satisfied with college life.B .The economy can’t take in so many youths that they have to attend college.C .Students are spoiled, hence they are not ready to adapt themselves to college life.D .Despite campus unhappiness, colleges provide more stimulation than anywhere else.( ) do the adventuresome educators suggest to relieve campus unhappiness?A .Colleges, though imperfect, remain the best place for the youth.B .After graduation from high school, some youngsters should not attend colleges.C .Only the intelligent and ambitious students should continue their studies in colleges.D .Colleges should improve to attract more students. ( ) does the underlined sentence mean? A .Our remembered college experiences prove that those surveys and statistics are inaccurate.B .Our remembered college experiences may make us interpret the results of the surveys the other way around.C . The surveys and statistics should be reexamined.D .Our college experiences enable us to interpret the surveys and statistics. ( ) is the main purpose of this passage?A .To argue against the conventional idea that college is the best place for youngsters growth and development.B .To put forward a heresy that college should not be the first choice after graduation from high school.C .To estimate the importance of college. D .To persuade youngsters into working after the pletion of high school. BAt 6:30 in the morning, a strapping（魁梧的） teenager on the point of manhood can look an awful lot like a newborn puppy , with eyes that won39。t open and a powerful instinct to curl up under something warm. Is this the same person who swore he wasn39。t tired at 10:30 the night before while he traded instant messages with six different friends at once, and who will probably do it again tonight? Parents know the adolescent drill all too well: stay up past 11 or 12 on school nights, stagger out of bed at 6 or 7, shower endlessly , eat a token breakfast （馬馬虎虎吃一點(diǎn)算早飯）and bolt. Yawn through school, perk up for sports or clubs, fight sleep while doing homework. Come to life at 9 ., deny fatigue and stay up well after parents have collapsed into bed. Holidays and weekends, stay up half the night and then 39。39。binge sleep39。39。 until noon or beyond. Sunday night, restart the cycle of late to bed and early to rise. Americans are said to be a sleepdeprived people, and teenagers are the worst of the lot. Most are lucky to get 6, 7 or 8 hours of sleep a night, even though studies have shown repeatedly that people in their teens and possibly even early 2039。s need 9 to 10 hours. Many live in a state of chronic sleep deficit that can affect mood, behavior, schoolwork and reaction time. Dr. Mary Carskadon, a sleep researcher at Brown University, describes sleepdeprived teenagers as existing in a 39。39。kind of gray cloud.39。39。 There are consequences. For one thing, lack of sleep can interfere with learning: tired students have a hard time paying attention, and even if they do somehow manage to focus, they may forget what they were taught because memory formation takes place partly during sleep.( )46 .At 6:30 , a tall teenager is described as being . A . awful B .sleepy C . tired D . lazy ( )47 .At 10:30 the night before , the teenager was ________ . A . online B . telephoning C . writing letters D . chatting ( )48 . When is the teenager most energetic as his parents are aware of ? When he is _________ . A . taking a shower about 7 B . having a hurried breakfast at 6 or 7 C . studying at school in daytime D .doing sports or playing at a club after 9 ( )49 . The expression “binge sleep” (3rd Para ) probably means ______ . A . neglect