2013同等学力英语阅读理解冲刺试题(四)

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1、同等学力在线视频培训免费试听http://edu.21cn.com/kcnet1840/阅读理解　　Formillionsofyearsbeforetheappearanceoftheelectriclight，shiftwork，all-nightcableTVandtheInternet，earth’screaturesevolvedonaplanetwithpredictableandreassuring24-hourrhythms.Ourbiologicalclocksaresetforthisdailycycle.

2、Simply，ourbodieswanttosleepatnightandbeawakeduringtheday.Mostwomenandmenneedbetweeneightandeightandahalfhoursofsleepanighttofunctionproperlythroughouttheirlives.（Contrarytopopularbelief，humansdon’tneedlesssleepastheyage.）　　Butonaverage，Americanssleeponlyaboutsevena

3、ndahalfhourpernight，amarkeddropfromtheninehourstheyaveragedin1910.What’sworse，nearlyonethirdofallAmericansgetlessthansixhoursofsleeponatypicalworknight.Formostpeople，that’snotnearlyenough.　　Findingwaystogetmoreandbettersleepcanbeachallenge.Scientistshaveidentifiedm

4、orethan80differentsleepdisorders.Somesleepingdisordersaregenetic.Butmanyproblemsarecausedbystayinguplateandbytravelingfrequentlybetweentimezoneorbyworkingnights.Dr.JamesF.JonesatNationalJewishMedicalandResearchCenterinDenversaysthatsleepdisordersareoftendiagnosedas

5、otherdiscomforts.Aboutonethirdofthepatientsreferredtohimwithpossiblechronicfatiguesyndromeactuallyhavetreatablesleepdisorders.“Beforewedoanythingelse，welookattheirsleep.”Jonessays.　　Sleepexpertssaythatmostpeoplewouldbenefitfromagoodlookattheirsleeppatterns.“Mymotto

6、（座右铭）is‘Sleepdefensively’.”saysMaryCarskadonofBrownUniversity.Shesayspeopleneedtocarveoutsufficienttimetosleep，evenifitmeansgivingupotherthings.Sleeproutines-likegoingtobedandgettingupatthesametimeeveryday-areimportant.Pre-bedtimeactivitiesalsomakeadifference.Aswit

7、hElsner，whousedtosufferfromsleeplessness，afewlifestylechanges—avoidingstimulantsandlatemeals，exercisinghoursbeforebedtime，relaxingwithahotbath—yieldbettersleep.　　41.WhatisTRUEofhumansleep？　　A.Onaverage，peopleintheU.S.todaysleeplesspernightthantheyusedto.　　B.Formost

8、people，lessthansixhoursofsleeponatypicalworknightisenough.　　C.Mostpeopleneedlesssleepwhentheygrowolder.　　D.Mostpeopleneedsevenandahalfhemsofsleep