译林版高中英语学案选择性必修第四册精品课件 Unit 2 Understanding each other 分层跟踪检测（一）.ppt

02Unit2Understandingeachother分层跟踪检测（一）

Ⅰ.阅读理解A(2024·东北三省三校联考)MotherNatureneverfailstosurpriseuswithsomethingextraordinaryandunusualfromtimetotime.Therewillalwaysbenewsaboutsomethingcompletelydifferentthatwillsurelygrabeyeballs.BloodFalls（Antarctica）Asthenamesuggests,BloodFallsisawaterfallwhichshootsblood-redwaterintoariver.Thesightisaperfectbackdropforahorrorfilm;mysteriousandofcoursebloody.Previously,redalgae（红藻）werebelievedtocausethewatertochangeitscolourandturnblood-red.Until2017,thetrueoriginoftheso-calledbloodwasrevealedtobeoxidizedironinsaltwater.

FrozenBubbles（Canada）Impressiveyetadangeroussight,frozenbubbles（气泡）canbeseeninwintersatAbrahamLakeinCanada.Thephenomenonoccurswhenmethane（甲烷）gasgetstrappedunderwater,freezes,andformsotherworldlyvisuals.Suchalargeamountofmethanetrappedishighlyrisky.Soevenalitmatchnearbycancauseagiantexplosion.

HiddenBeach（Mexico）LocatedonlyafewmilesoffMexico’scoast,thehiddenbeachwascausedbyanexplosionbytheMexicanGovernmentaspartoftargetpractice.Thebeachisnoweverylover’sdreamdestination.Togetthere,youmustrideanhour-longboat.Onceyoulandontheisland,youhavetotravelthroughthewaterstoreachthere.SkyMirror（Malaysia）Duringthenewmoonandfullmoonperiods,touristcanseeaclearreflectionoftheskyinthewatersofSasaranBeach.Thisnaturalphenomenonoccursbecausethetidesarethelowestduringthesedays.Thesmoothsandandminimalwaterlevelcreatesuchanincrediblesight.Alsoknownasthe“MirroroftheSky”,thisshallowwaterbeachisanamazingplacetoclickpicturesandthusaperfecttraveldestination.【语篇导读】本文介绍了四种自然现象：血瀑布、冰冻气泡、隐形海滩和天空之镜。

1.WhyisthewatershotbyBloodEallsblood-red?()AA.Saltwatertherecontainsoxidizediron.B.Thewaterfallhassupernaturalpowers.C.Red