Unit 5 Monarchs journey 课件 （备课精研） 外研版高一英语必修第一册

Unit5IntothewildDoyouknowthenamesoftheseanimals?monarchbutterflySiberiancrane

redpandaAtlanticsalmon

killerwhaleAfricanlionLookandchoosetheanimalsthatmigrate.monarchbutterflySiberiancrane

redpandaAtlanticsalmon

killerwhaleAfricanlion√√√√

Themonarchbutterflyisoneofthemostrecognizableandwellstudiedbutterfliesontheplanet.Itsorangewingsarelacedwithblacklinesandborderedwithwhitedots.Famousfortheirseasonalmigration,millionsofmonarchsmigratefromtheUnitedStatesandCanadasouthtoCaliforniaandMexicoforthewinter.ThemonarchbutterflyChoosewhereyouaremostlikelytofindthepassage.

1In

a

scientific

researchpaperaboutthemonarchbutterfly'smigration.2Inapopularnaturemagazineintroducingthemonarchbutterfly.3InatravelleafletencouragingpeopletovisitNorthAmerica.

Whatisthemainideaofthepassage?A.Themonarch’smigration.B.Thereasonsformonarch’smigration.C.Mexico’smonarch.Themainidea

ofapassagecanbefoundfromitstitle,thetopicsentence,oreventhepictures.1.Whatismigration?Manyanimalsmovefromoneplacetoanotheratcertaintimesoftheyear.Thisannualmovementiscalledmigration.2.What'sthepurposeofmigration?Tofindfood,seekapartmer,orinsearchofwarmerweather.Answerthefollowingquestions.Answerthefollowingquestions.3.Whatdoesmonarchbutterflylooklike?Beautifulinsectswithfineblackandorangewings.4.Duringthemigration,wheredotheystartandgoto?FromnorthAmericatoCaliforniaorMexico.Whatmysteryhavethescientistssolved?NorthSouthHow?Thescientistshavesolvedthemysteryofhowmonarchbutterfliesmanagetotravelalongdistanceandfindtheirwaytothesouth.

da.Themonarchbutterflyisabletotell________________.b.Usingthesetwopiecesofinformation,themonarchbutterflydetermines_____________.c.Themonarchbutterflymeasures__________________________withitseyes.d.Themonarchbutterflyreaches__________________________________________.thetimeofdaythewaytogothepositionoftheplaceswhereit

a

thesunwillspendthewintercbe.Humans

_________trees.f.

The________________________________wheremonarchscanbefoundisdestroyed.g.

Humansusechemicalsthat____________thatmonarchcaterpillarseat.h.Themonarchbutterfly’s

population

______________________________________________inthelastfewyears.cutdownnaturalenvironmentofmanyplaceskilltheplantshascrashed(byasmuchas90percent)

hegfdecreaseincreaseWhatshouldpeopledo?RaiseawarenessofthiscreaturePlantnativemilkweed(马利筋草)spiecestofeedonDon'tusechemicalsthatkilltheplantsProtectthenaturalenvironmentSpreadtheword!TheMonarch'sJourneywhen/where/whyhowtroublesolutionamigrationandthecausemysterypopulation

crashsurvival?1.fromone...toanother 从一个……到另一个2.managetodo 设法做成某事3.findone’swayto设法找到去……的路4.thesolutionto... ……的解决方法5.introuble 处于困境中6.cutdown 砍倒7.leadto 导致；造成(后果)；通向……8.makesure 确保，确信；查明，弄清楚9.feedon 以……为主食wordbankOfallmassmigrations,thatoftheNorthAmericanmonarchbutterflyisoneofthemost__________(wonder).Everyautumn________(million)ofthesebeautifulinsectsmanage__________(travel)4,000kilometressouthandfindwaystoplaces________theywillspendwinter.Ateamofscientists___(lead)bytheuniversityofWashington_____________(discover)thatthemonarchisabletotellthetimeofday_______