小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com课时作业(十)Unit4SectionⅠWelcometotheunit&ReadingⅠ.阅读理解APeoplebelievethatclimbingcandogoodtohealth.Wherecanyoulearntheskillofclimbingthen?Ifyouthinkthatyouhavetogotothemountainstolearnhowtoclimb,you'rewrong.ManyAmericansarelearningtoclimbincitygyms.Here,peoplearelearningonspecialclimbingwalls.Theclimbingwallgoesstraightupandhassmallholdingplacesforhandsandfeet.Howdopeopleclimbthewall?Toclimb,youneedspecialshoesandaharness(保护带)aroundyourchesttoholdyou.Thereareropestiedtoyourharness.Theropesholdyouinplacesothatyoudon'tfall.Abeginner'swallisusuallyabout15feethigh,andyouclimbstraightup.Therearesmallpiecesofmetalthatstickoutforyoutostandonandholdonto.Sometimesit'seasytoseethenewpieceofmetal.Sometimes,it'snot.Themostdifficultistocontrolyourfear.It'snormalforhumanstobeafraidoffalling,soit'sdifficultnottofeelfear.Butwhenyoumoveawayfromthewall,theharnessandtheropesholdyou,andyoubegintofeelsafe.Youmoveslowlyuntilyoureachthetop.Climbingattractspeoplebecauseit'sgoodexerciseforalmosteveryone.Youuseyourwholebody,especiallyyourarmsandlegs.Thissportgivesyourbodyacompleteworkout.Whenyouclimb,bothyourmindandyourbodycanbecomestronger.1．Whatcanweinferfromthepassage?A．Peoplearefairlyinterestedinclimbingnowadays.B．Itisimpossibletobuildupone'sbodybyclimbing.C．Peoplecanonlylearntheskillofclimbingoutdoors.D．Itisalwayseasytoseeholdingplacesinclimbing.2．Themostdifficultthingtodoinwallclimbingis________．A.totieropestoyourharnessB．tocontrolyourfearC．tomoveawayfromthewallD．toclimbstraightup3．Whatdoestheunderlinedword“workout”inthelastparagraphmostprobablymean?A．Settlement.B．Exercise.C．Excitement.D．Tiredness.4．Whydoestheauthorwritethispassage?A．Totellpeoplewheretofindgyms.B．Toprovethebasicneedforclimbing.C．Toencouragepeopletoclimbmountains.D．Tointroducethesportofwallclimbing.5．Wheredoyousupposethistextcomesfrom?A．Asciencebook.B．Aresearchreport.C．Asportsmagazine.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comD．Asportshistorybook.BThespreadofWesterneatinghabitsaroundtheworldisbadforhumanhealthandtheenvironment.ThesefindingscomefromanewreportinthejournalNature.DavidTillman,aprofessorofecologyattheUniversityofMinnesota,America,examinedinformationfrom100countriestoidentifywhatpeopleateandhowdietaffectedhealth.Henotedamovementbeginninginthe1960s.Hefoundthatasnationsindustrialized,populationincreasedandearningsrose,morepeoplebegantoadoptwhathasbeencalledtheWesterndiet.TheWesterndietishighinsugar,fat,oilandmeat.Byeatingthesefoods,peoplebegantogetfatterandsicker.DavidTillmansaysoverweightpeopleareatgreaterriskofnoninfectiousdiseaseslikediabetes(糖尿病)andheartdisease.Unfortunately,ifpeopleadoptthisWesterndiet,theyaregoingtohavethesehealthproblems,especiallyindevelopingcountriesinAsia.Chinaisanexamplewherethenumberofdiabetescaseshasbeenjumpingfromlessthanonepercentto10percentofthepopulationasitbegantoindustrializeovera20yearperiod.Andthatishappeningallacrosstheworld,inNigeriaandsoon.And,adietbadforhumanbeingsisalsobadfortheenvironment.Astheworld'spopulationgrows,moreforestsandtropicalareaswillbecomefarmlandforcropsorgrasslandforcattle.Wearelikelytohavemoregreenhousegasinthefuturefromagriculturethanthatcomingouto...