Unit5IntothewildUnderstandingideas課件-高中英語

Unit5Understandingidea

TheMonarch’sJourney

Learningobjectives:Aftertheclass,youwillbeableto1.getthemainideaandsomedetails.2.formarightattitudetonature.Step1Lead-inLookatthepicturesandchoosetheanimalsthatmigrate.monarchbutterflySiberiancraneAtlanticsalmonredpandakillerwhaleAfricanlionEnjoythevideoandobservethebutterfliescarefully.1.What'sthemainideaofthetext?A．Howtoprotectmonarchsbyknowingabouttheirmigration.B．Howtounderstandmonarchs'migration.C．Howthescientistsdotheresearchaboutmonarchs.D．Howthemonarchsmigrateeveryautumn.Fastreading2.Matchthemainideawiththeproperparagraph.A.Everyautumnmonarchsbegintomigrate.B.Everyyearmanyanimalsmigrate.C.Howtoprotectthemonarchs.D.Whythenumberofthemonarchsreduces.E.Howthemonarchsmigrate.para1para2para3para4para5CarefulreadingReadPara1.1.Whatisthemainpurposeofthefirstparagraph?A.Toexplainwhatmigrationis.B.Totellusthereasonsformigration.C.Tointroducethetopicofthetext.D.Totellushowmanyanimalsmigrate.2.What’sthetopicofthepassage?ThemigrationofNorthAmericanmonarchbutterflies.3.Whatismigration?Theannualmovementofanimalsfromoneplacetoanotheratcertaintimeoftheyear.4.Whydoanimalsmigrate?Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.ReadPara2.1.Whatdomonarchbutterflieslooklike?2.Howfardotheytravelandwhereistheirdestination?Theyarebeautifulinsectswithfineblackandorangewings.Around4000kilometers.CaliforniaandMexico.ReadPara3.1.Whycanthemonarchbutterflyreachtheplacewhereitwillspendthewinter.a.Themonarchbutterflyisabletotell___________________.b.Usingthesetwopiecesofinformation,themonarchbutterflydetermines_____________.c.Themonarchbutterflymeasures____________________withitseyes.d.Themonarchbutterflyreaches________________________thetimeofdaythepositionofofthesun

thewaytogotheplaceswhereitwillspendthewinterab

cdReadPara4.1.What'sthefactordrivingscientiststofindthesolution

tothemysteryofthemonarch?A.Themonarchisabletotellthetimeofday.B.Themonarchisinseriousdanger.C.Themonarchcanuseitseyestomeasurethepositionofthesun.D.Themonarchmanagestoreachtheplaceswhereitwillspendthewinter.

2.Whatisthemeaningoftheword“crash”?A.hitB.makealoudnoiseC.reduceD.stopworkingsuddenly

3.Whydoesthemonarch’spopulationcrash?e.Humans

______________trees.f.

The________________________________wheremonarchscanbefoundisdestroyed.g.

Humansusechemicalsthat___________________thatmonarchcaterpillarseat.h.Themonarchbutterfly’s

population

_________________________________________inthelastfewyears.cutdownkilltheplantsnaturalenvironmentofmanyplaceshascrashedbyasmuchas90percente

fghReadPara5.1.Whateffectdoestheresearchhave?Itleadstoagreaterawarenessofthiscreature.Think&Share1.Whatimpressyoumostaboutthemonarchbutterfly?2.Whatcanpeopledotohelpprotectthemonarchbutterfly?Thequestionisopen.Everyonecanhavehisownidea.Weshouldplantmoreplantsforthemonarchtofeedon.Weshouldnotusechemicalsthatkilltheplantsasmuchaspossible.Weshouldprotectthenaturalenvironment.Rationalcloze.Manyanimalsmigrateatcertaintimesoftheyear.Ofallthemass1._________(migrate),thatoftheNorthAmericanmonarchbutterfliesisoneofthemostwonderful.Everyautumn,theybegin2.__longanddifficultjourney.Somehowtheymanagetotravelaround4,000kilometressouthandfindtheirway3.___CaliforniaorMexico.Theyareabletotellthetimeofthedayandusetheireyes4._________(measure)thepositionofthesun.5.________(eventual),theymanagetoreachCaliforniaorMexico.migrationsatomeasuretoEventuallyNowthemonarchisinserioustrouble,anditspopulation6.__________(crash)byasmuchasninetypercentinthelastfewyears.Humanactivityisthemainreason.Inmanyoftheplaceswheremonarchscan7._________(find),peoplearedestroyingthenaturalenvironmentby8.______(cut)downtreesandusingchemicalsthatkilltheplantsthatmonarchcaterpillarseat.Fortunately,peopleareawareofthe