大学英语四级选词填空练习(二十九)难度:适中评论:1收藏3闯关背单词,尽在开心词场!跟玩儿似的不枯燥,没注册怎么能参与呢?Thepopularnotionthatolderpeopleneedlesssleepthanyoungeradultsisamyth,scientistssaidyesterday.Whileelderlypeople__1__tosleepforfewerhoursthantheydidwhentheywereyounger,thishasa(n)__2__effectontheirbrain'sperformanceandtheywouldbenefitfromgettingmore,accordingtoresearch.SeanDrummond,a.psychiatrist(心理医生)attheUniversityofCalifornia,SanDiego,saidolderpeoplearemorelikelytosufferfrombrokensleep,whileyoungerpeoplearebetteratsleeping__3__straightthroughthenight.Moresleepinoldage,however,is__4__withbetterhealth,andmostolderpeoplewouldfeelbetterandmore__5__iftheysleptforlongerperiods,hesaid.Theabilitytosleepinonechunk(整块时间)overnightgoesdownasweagebuttheamountofsleepweneedto__6__welldoesnotchange,DrDrummondtoldtheAmericanAssociationfortheAdvancementofScienceconferenceinSanDiego.It's__7__amyththatolderpeopleneedlesssleep.Themorehealthyanolderadultis,themoretheysleepliketheydidwhentheywere__8__.Ourdatasuggeststhatolderadultswouldbenefitfrom__9__togetasmuchsleepastheydidintheir30s.That's__10__frompersontoperson,buttheamountofsleepwehadat35isprobablythesameamountasweneedat75.[A]alert[B]associated[C]attracting[D]cling[E]continuing[F]definitely[G]different[H]efficiently[I]formally[J]function[K]mixed[L]negative[M]sufficient[N]tend[O]younger答案解析:文章大意:本文主要讲述的是关于老年人睡眠的问题:是否老年人与年轻人相比只需要较少的睡眠时间?1.Ntendtendto固定搭配;表示倾向于;符合句意;2.Lnegative空格后是effect,前面是a(n),由此可见,该处需要填入一个形容词;题目给出的形容词有negative,sufficient,younger;根据前后语意,填入negative最为恰当,表示少的睡眠时间对大脑的活动有负面的影响。3.Hefficiently根据推测,该处应该填入一个副词,题目给出的副词有efficiently,definitely,formally;前面提到,老年人在睡觉的时候更容易被打断,而后面用while提出一个对比的概念,年轻人相比起来能获得更_______的睡眠;综合起来,选用efficiently(最有效率的)最为准确。4.Bassociatedbeassociatedwith固定搭配;表示与…联系在一起;本句话表示更多的睡眠通常都与健康度联系在一起;5.Aalert先看整句话的含义,如果他们能睡更长的时间,他们的感觉应该会更好以及…那么,该处应该填入一个褒义词,选择alert比较恰当,表示更加警觉,机灵;6.Jfunction根据判断,此处应该填入一个动词,剩下的动词有cling,function;整句话的意思是当我们上了年纪的时候,我们一觉睡到天亮的能力下降了,但是,我们需要…的睡眠量并没有改变;空格后的单词是well,cling在这里并不合适,一般与to连用;选用function最为适合;7.Fdefinitely作者在首段已经提出这个观点是一个myth,那么显而易见最后一段中出现的myth是作为一种强调手段,应填入definitely;8.Oyounger空格的前面是whentheywere…,当他们年轻的时候;应填入younger;9.Econtinuing本句的意思是我们的数据显示老年人将从…获益;空格的后面是得到和他们在三十多岁的时候能得到的睡眠一样多;根据上下文意思,该处应填入continuing;10.Gdifferentdifferentfrom固定搭配;表示和…不同。