2020版高考英语一轮总复习课时作业40Unit5Meetingyourancestors（含解析）新人教版选修8

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1、课时作业　Ⅰ.阅读理解(2019·靖远一中月考)GreycloudsmoveaslowassmokeoverthetreetopsatLoloPass.Thegroundiswhite.ThedayisJune10.IthasbeensnowingforthepastfourdaysintheBitterrootMountains.WayneFairchildisgettingworriedaboutourtrekovertheLoloTrail—95milesfromLoloMontanatoWeippeinIdah

2、o,acrosstheroughestcountryintheWest.LewisandClarkwerenearlydefeated200yearsagobysnowstormsontheLolo.TodayFairchildisnervouslycheckingtheweatherreports.Hehasagreedtotakemeacrossthetoughest,middlesectionofthetrail.WhenLewisclimbedontopofLemhiPass,140milessouthofMi

3、ssoula,onAug.12,1805，hewasastonishedbywhatwasinfrontofhim;“highmountainchainsstilltotheWestofuswiththeirtopspartiallycoveredwithsnow.”NobodyinwhatwasthentheUSknewtheRockyMountainsexisted,withpeakstwiceashighasanythingintheAppalachiansbackEast.Todaytheirpathwayth

4、roughthosemountainsholdsmoreattractionthananyothergroundoverwhichtheytraveled,foritsrawwildernessisanevidencetothecharacteroftwocultures:theexplorerswhobraveditshardshipsandtheNativeAmericanswhoprizeandconservethepathasasacred(神圣的)gift.Itremainstodaythesamecondi

5、tionaswhenLewisandClarkwalkedit.TheLoloispassableonlyfromJulytomidSeptember.Ourluckisholdingwiththeweather,althoughthesnowkeepsgettingdeeper.AsweclimbtoIndianPostOffice,thehighestpointonthetrailat7,033ft,wehavecovered13milesinsoftsnow,andwehardlyhaveenoughenergy

6、tomakedinner.Afteramealofchicken,Isitonarockontopoftheridge(山脊)．Thereisnolightvisibleinanydirection,notevenanothercampfire.Forfourdayswedonotseeanotherhumanbeing.Weareoccupiedwiththethingsthatmixfearwithjoy.InourimaginationwehavefinallycaughtupwithLewisandClark.

7、本文记录的是一次追寻前人足迹的探险，尽管天气、路程等条件非常艰难，但是在作者看来却是已经赶上了以前的探险者。1．Welearnfromthetextthatbefore1805________.A．TheRockyMountainswerewhollycoveredwithsnowB．therewerenopeoplelivinginthewesternpartofAmericaC．noAmericansknewoftheexistenceoftheRockyMountainsD．theAppalachianswere

8、thewesternfrontieroftheUnitedStates答案：C解析：细节理解题。根据第二段NobodyinwhatwasthentheUSknewtheRockyMountainsexisted,withpeakstwiceashighasanythingintheAppalachiansbackEast.可知，我