2018届高三英语总复习第一部分回归教材Unit3Computers课时作业新人教版.docx

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1、Unit3ComputersⅠ.阅读理解Everyfewyearscomesafitnesstrendthathaspeoplescratchingtheirheadsinamazement.“Crunning”willprobablybeoneofthem.The“c”standsfor“crawling”(爬行).Thisnewsportneedstwoleggedhumansrunningonallfours!ThefunnyideaisthebrainchildofShaunMcCart

2、hy.The34yearoldisconvincedthatitwillrevolutionizefitnessasweknowit.Accordingtothesportsenthusiast,“Theonlythingthatcrunning'schangedaboutfitnessisthatit'schangedeverythingaboutfitness.”McCarthyhasnoscientificevidencetoprovethatcrunningismoreefficient

3、thantraditionaltwoleggedrunning.However,hebelievesitisamoreeffectivewaytoexercisebecauseitputsanemphasisontheshouldersandarms,providingacompletebodyworkout.McCarthyalsosayscrunningseemstotirehimoutmore.Hethereforeconcludesthattheunconventionalexercis

4、eisabiggercalorieburnerthannormalrunning.Whileexpertsgenerallyagreethatcrunningmayprovideabetterworkout,manyarenotsureifitistherightexerciseforhumans.FitnesscoachKevinDeansayswearenotbuilttobeonallfoursandourwristsarethereforenotasstrongasourankles.H

5、ebelievescrunning,whichhecallsafad(时尚),couldresultinbadwristandshoulderinjuries,nottomentionbrokennoses.ButMcCarthyisnotworried.Sincethereleaseofhiscrunningvideoafewweeksago,manyMelbourneresidentshavebeenseenscamperingaroundonallfours.Asitturnsoutthe

6、yarenottheonlyones.IntheChinesecityofZhengzhou,crawling,amuchslowerversionofcrunning,hasbeenafavoriteactivityformanyyears.Accordingtosomeenthusiasts,thelightexercisethatisbelievedtodatebacktwothousandyearstotheHanDynasty,isgoodforcuringbackandspineai

7、lments.Readytogivecrunningatry?ThenMcCarthyrecommendsinvestinginsomegoodshoes,hardyglovesandmostimportantofall,afacemask!1．WhatcanwelearnaboutcrawlingaccordingtoKevinDean?A．Ouranklesarestrongerthanourwrists.B．Crawlingisanefficientwaytoworkout.C．Theci

8、tyofZhengzhouistheoriginofcrawling.D．Crawlingcanburnmorecaloriesthannormalrunning.2．Whatdoestheauthorthinkofcrunning?A．Dangerous.　　　　　　B．Interesting.C．Beneficial.D．Unbelievable.3．WhydoesMcCarthysuggestpeoplewearingafacemaskwhencrunning?A．Toamuseother