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1、Unit3BacktothepastGrammar学习目标：1、题型训练2、能力提升学习流程及内容：1.Leading-in2.Discussion3.Assessment4.CheckingStePI导：（3分钟）老师点评学案答题情况Step2议：（7分钟）Step3展：（20分钟）Step4评：（7分钟老师评价和补充）Taskl阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项FromitsoriginsintheCaliforniahillsintheUStoitsacceptanceonurbanstreetsworldwide,thehistoryofskateboard
2、ingspans（跨越）sevendecadesoverwhichithasdevelopedfromanunwelcomesporttoanOlympiceventin2020.Now,aLondonexhibitionistoshowthepathfromthosehumblehomemadeboardsofthe1950stotoday,shi-techprofessionalmodels.Theexhibitionwillfeatureabout90rareanduniqueboardsalongwithmorethan100otherrelatedobjects,includings
3、afetyequipmentandmagazines.HalfoftheskateboardswillbeonloanfromtheSkateboardingHallofFameMuseuminCalifornia.Ahighlightwillbea1967BilboboardproducedbyEuropeanSurfingCompany,whichwassetupatNewquayinCornwallinsouthwesternEnglandin1965andmarketedthefirstskateboardsintheUK.Alsoondisplaywillbethefamousska
4、teboarderTonyHawk,sfirstprofessionalmodel,from1982,withitsadaptationsforthevertstyleofskateboardingwhichusesverticalramps（垂直坡面）ratherthanlevelground;earlyhomemadeboardsfrom1950sCaliforniamodeledonthedesignofroller-skatesandsurfboards;andthefirsttwomodelstofeatureakicktailtheraisedtailenablingskaters
5、toturnorbalancetheboardonthebackwheels.ItwillalsofeatureLauraThomhilsLoganEarthSkifromthe1970s,thefirstwomensprofessionalmodel.SkyBrown,whoat13wonbronzeforTeamGreatBritainatthe2020TokyoOlympics,isrepresentedthroughherfirstprofessionalmodel,theSkyBrown&SkateistanAlmostmodel.44Skateboards,oftenmis
6、understoodasbeingjusttoys,arenowhi-techproductsrespondingtoconstantlychangingurbanenvironments,saidJonathanOlivares,theshow,sdirector.Thisexhibitioniscentredaroundasinglequestion:howdidtheskateboardgettopositioningtheskateboardasatnlyuniqueobject.”1. Whenwereskateboardsinvented?A. In the 1950s. B. I
7、n the 1960s.C. In the 1970s.D. In the 1980s.2. WhatcanweknowaboutTonyHawk,sskateboardonthedisplay?A.Itisahomemadeboardwithakicktail.B.Itisprobablysuitableforverticalcamps.C.Itisdesignedtoskateonthelevelground.D.Itismodeledonthedesignofroller-skates.3. Whichisthefirstwomensprofessionalmodel?A.Bilbo.B
8、.Newquay.C.Sky.D.LoganEarthSki.4. Whatcanweinferfromthetext?A. Skateboardsarestilllow-techproducts.B. Skateboardingwonitsacceptanceimmediately.C. Skateboardingwillbeverypopulararoundtheworld.D. Skateboarderswerealwaysadmiredbythepublic.Tousitseemssonaturaltoputupanumbrellatokeepthewateroffwhenitrain
9、s,butactuallytheumbrellawasnotinventedasprotectionagainsttherain.Itsfirstusewasasashadeagainstthesun!Nobodyknowswhofirstinventedit,buttheumbrellawasusedinveryancienttimes.ProbablythefirsttouseitweretheChinese.WeknowthattheumbrellawasusedinancientEgyptandBabylonasasunshade.Andtherewasastrangethingcon
10、nectedwithitsuse:itbecameasymbolofhonour.IntheFarEastinancienttimes,theumbrellawasallowedtobeusedonlybythoseinhighoffice.InEurope,theGreekswerethefirsttousetheumbrellaasasunshade.AndtheumbrellawascommonlyusedinancientGreece.ButitisbelievedthatthefirstpersonsinEuropetousetheumbrellaasprotectionagains
11、ttherainweretheancientRomans.DuringtheMiddleAges,theuseoftheumbrellapracticallydisappeared.ThenitappearedagaininItalyinthelatesixteenthcentury.Andagainitwasconsideredasasymbolofpower.By1680,theumbrellaappearedinFranceandlaterinEngland.Bytheeighteenthcentury,theumbrellawasusedagainstrainthroughoutmos
12、tofEurope.LJmbreIIasdidnotchangemuchinstyleduringallthistime,thoughtheybecamemuchlighterinweight.Itwasntuntilthetwentiethcenturythatwomen,sumbrellasbegantobemadeinawholevarietyofcolours.5. Accordingtothispassage,theumbrellawasprobablyfirstusedinancient.A. ChinaB. EgyptC. GreeceD. Rome6. InEurope,the
13、umbrellawasfirstusedagainsttherain.A.duringtheMiddleAgesB.bytheeighteenthcenturyC.inancientRomeD.inancientGreece7. Thispassagemainlytalksabout.A. whenandhowtheumbrellawasinventedB. whytheumbrellawassopopularinEuropeC. thedevelopmentoftheumbrellaD.thehistoryanduseoftheumbrellaTask2七选五WhoInventedSilk?
14、SiIkisathin,yetextremelystrong,fiber.Itismadefromproteinthatsilkwormsproducewhentheymaketheircocoons.Thousandsofyearsago,ancientChinesecraftsmenbeganweavingsilkfiberintoasoft,smoothfabric.Aprecioustextile,silkwasatfirstreservedforexclusiveusebytheChineseimperialcourt.Chineseofficialsdecidedthatsilk-
15、makingmethodsmustremainChinassecret.8TheSilkySecretGetsOutHowever,theexistenceofsilkdidnotremainasecret.Ondiplomaticvisitstoneighboringrulers,Chineseenvoyscarriedgiftsofsilk.BythefirstcenturyBC,theRomanshadbecomefamiliarwiththisexotic（异国情调的）1UXUryitem.9Westernrulersissuededicts（法4）thatcontrolledsilk
16、prices.AsinChina,silkwasdesignatedasolelyroyalfabric.Tradingforsilkwasprincipalmotivationfrmerchantswhosearchedforroutes.FromEuropetotheFarEastOverthecenturies,differentmainroutesdeveloped.10TradesmentravellingeastorwestcouldchooseamongroutesthatcrossedmanyregionsofEasternEurope,theMiddleEast,CentralAsia,andtheFarEast.11TradingvesselscarriedgoodsfromChinaandSoutheastAsiaacrossIndi
