Unit+3+Conservation+Lesson+1+The+Sixth+Extinction 高中英語北師大版(2019)選擇性必修第一冊

Lesson1TheSixthExtinctionUnit3ConservationReading01BeforewereadTheFiveMajorMassExtinctions01020304二疊紀(jì)(thePermianperiod)95%

dieout82%dieout76%dieout80%ddieoutout三疊紀(jì)(theTriassicperiod)白堊紀(jì)(theCretaceousperiod)小行星或彗星墜落地球05泥盆紀(jì)(theDevonianperiod)85%dieout奧陶紀(jì)（theOrdovicianperiod)2AboutwhatpercentofallspeciesonEarthbecameextinctduringthemassextinctionknownasthe“GreatDying”?a.Lessthan10%b.Nearly50%c.Morethan90%3Whatdoscientiststhinkwillcausethenextmassextinction?a.Humanactivityb.Naturalcausesc.Unknownreasons1HowmanytimesuptotodayhaslifeonEarthalmostdiedout?a.Onceb.Fivetimesc.Morethan10timesHowmuchdoyouknowaboutextinction?Sowilltherebeasixextinction?02While-readingMakeamatchBackgroundinformationCausesConsequencesSolutionsPara4Para1Para2Para3單擊此處輸入標(biāo)題文本Para1Para2BackgroundinformationCausesConsequencesSolutionsPara3Para4Readthetextandcompletethenotes.DefinitionofextinctionTheentirespeciesarewipedoutNumberoftimesOver90%ofallspeciesthateverlivedTwonotableextinctionsThethirdmassextinction,killed90%to96%ofallspecies;Thefiftheventcausedthedeathofthedinosaurs

Mainreasonsforextinctions1.volcaniceruptions,2.asteroidshittingtheEarthfromspace,3.changesinsealevels,thedecreaseofoxygencontentofthesea,globalwarmingHowtoavoidthesixthmassextinction1.Changethewaywelive,includingsettingupspecialareaswhereplantsandanimalscanbeprotected;2.Changehowweworkandtravelbyusingcleaner,morenaturalsourcesofenergy;improveourfarmingmethods03IntensivereadingReadagainandanswerthequestions.1.Whatdidscientistsfindoutin2015?2.Whydoesthewriterthinkthesixthmassextinctionwillcome?3.Whydoesthewriterbelievewe’llprobablydieoutif75%oftheEarth’sspeciesdieout?4.Whatdidpeopledointhecasestudytoprotectblackrobins?Whichclaim(s)didthecasestudysupportinthetext?1.Whatdidscientistsfindoutin2015?2.Whydoesthewriterthinkthesixthmassextinctionwillcome?3.Whydoesthewriterbelievewe’llprobablydieoutif75%oftheEarth’sspeciesdieout?4.Whatdidpeopledointhecasestudytoprotectblackrobins?Thecasestudyshowedthatevenindesperatesituations,wecandosomethingtohelp.Inshort,it’snevertoolate.Whichclaim(s)didthecasestudysupportinthetext?04SummaryCausesDOverfishingCFactoryfarmingBForestsbeingdestoryedAAirandwatepollutionConsequnecesChumanbeingsdieoutBNaturebalancebrokenA3/4speciesdieoutSolutionsCTakestepstosaveendangeredspeciesBChangethewayweliveAImprovefarmingmethodsBrainstorm(Groupof4)Whatareotherwayscanwefigureouttoavoidexrtinction?Watchavideoandthinkabouttheimportanceofprotectingtheearthtoday!05HomeworkNameoneortwophe