2024-2025学年新教材高中英语Unit5IntothewildPeriod2Understandingideas学案一外研版必修第一册

Unit5IntothewildPeriod2Understandingideas学习目标1.Togetthemainideaofthetextbyskimmingthekeywords,andaccuratelyjudgethesourceofthearticleaccordingtothecontentofthetext.2.Tofindoutthemaindetailsquicklyinthetextthroughintensivereading,andclearthecausallogicofthetext.3.Tolearnthebackground,purposeandwayofthemonarchsmigration,understandtheinfluenceofhumanbehaviorontheirsurvival,anddeepenthecognitionofthetextandthethemeoftheunit.自主预习MatchthewordswiththeirEnglishexplanations.1.annuala.theplacewheresb/sthis2.migrate b.tomovefromonepartoftheworldtoanotheraccordingtotheseason3.seek c.tofindthesize,quantity,etc.ofsth4.determine d.totrytofindorobtainsth5.manage e.happeningordoneonceeveryyear6.measure f.tofixsthordecide7.position g.tobesuccessfulindoingsth8.eventually h.attheendofaperiodoftimeoraseriesofevents9.solution i.tocontinuetoliveorexistespeciallyaftercomingclosetodying10.mystery j.tofallviolently11.amazing k.todamagesthsobadlythatitcannotbeused12.crash l.theanswertoaproblem13.destroy m.extremelysurprising14.creature n.sthstrangeornotknownthathasnotyetbeenexplainedorunderstood15.survive o.anylargeorsmalllivingthingthatcanmoveindependently课堂探究一、BeforereadingTask:Watchavideoandsharefeelings.二、WhilereadingTask1Readthepassagequicklyandanswerthequestion.Whereareyoumostlikelytofindthepassage?a.Inascientificresearchpaperaboutthemonarchbutterflysmigration.b.Inapopularnaturemagazineintroducingthemonarchbutterfly.c.InatravelleafletencouragingpeopletovisitNorthAmerica.Task2Matchthemainideaofeachparagraphandthenanalysethestructureofthispassage.Paragraph1a.Themonarchsmigration.Paragraph2 b.Thedefinitionofmigration.Paragraph3 c.Theeffectsoftheresearch.Paragraph4 d.Howdoesthemonarchfinishitsmigration?Paragraph5 e.Whysthenumberofthemonarchfalling?Task3Readthepassageparagraphbyparagraphtoanswerthefollowingquestions.①Whydomanyanimalsmigrate?

②Whatmysteryhavethescientistsfoundout?

③Howdoesthemonarchdeterminethewaytogo?

④Whathashappenedtothemonarchinthepastfewyearsandhowdidithappen?

⑤Whatsthesignificanceoftheresearchonthemonarch?

Task4ReadthepassageagainandfinishActivity4onPage52.Task5Languagefocus1.Themoreweknowaboutthislovelycreature,thegreaterthechanceitwillsurvive...我们对这种可爱的生物了解的越多,它生存的机会就越大。【学问链接】本句运用了“the+比较级,the+比较级”句型,表示“越……就越……”。【实战演练】翻译句子①你越细心,犯的错误就越少。

②你越努力,取得的进步就越大。

2.Thesetwopiecesofinformation-thetimeofdayandthepointwherethesunisinthesky—allowthebutterflytodeterminethewaytogo.一天中的时间以及太阳在空中所处的位置,这两条信息可以帮助黑脉金斑蝶确定它须要走哪条路。【学问链接】(1)句子中的wherethesunisinthesky为关系副词where引导的定语从句,修饰先行词point,where在从句中用作地点状语。(2)determinev.确定变成名词:determination意思是决心;变成形容词:determined意思是坚决的【实战演练】单句语法填空①ThisistheschoolIspentmyhighschoollife.

②ThisistheschooliscalledPanyangMiddleSchool.

③ThisistheschoolIwillintroduce.

④他确定学日语。

⑤我决心要获得胜利。

⑥aleaderwithcourageanddetermination

三、AfterreadingTask1Designamindmapforthepassage.Task2Challengeyourself!Writeasummarywiththemindmap.Requirements:1.Useyourownwording.2.Expressthemainideas.3.Keepthesummaryshort(about1/3or1/4aslongastheoriginalone).

Task3GroupdiscussionWhatelsecanpeopledotohelpprotectthemonarchbutterfly?核心素养专练一、Canyoudescribehowmonarchbutterfliesmigrateeveryautumn?二、Canyoudescribetheresearchonthemonarchbutterfly?三、Haveyougotarightattitudetothebehaviorofwildanimalsnow?四、ReadthearticleBirdmigrationandfillintheblanks.BirdmigrationThemainreasonformigrationormovementisfood;forexample,somebirdsmaychoosenottomigrateiftheyarefedthroughthecoldmonths.Changesinthedaylengtharesignalsformigrationandrelatetothephysicalchangesinthebirds.Birdswillalsodisplayrestlessnessandincreasetheirfatdeposition(沉积).Duringshorterdaysinthefall,birdswillreturntowarmerareaswheretheyfindadequatefoodsupply.Manysmallerinsect-eatingbirdsmigratelargedistancesusuallyatnight.Theymayfeedforafewdaysbeforecontinuingtheircourseoftravel.Anadvantagefornightmigratingisthatitminimizesthethreatofpredators(食肉动物),allowingthebirdstofeedduringthedayandavoidoverheating.Themigrationforthesebirdsisbasedonanumberofdifferentsenses.Manybirdsusethesunasacompass.Theabilitytodetectmagneticfield(磁场),useofvisuallandmarks,aswellastheirsenseofsmellareusedtohelptravelduringmigration.Birdmigrationisastronggeneticfactorintermsoftimingandroute,whichcanbeinfluencedbytemperature.Migratorybirdsmayusetwotoolstofindtheirdestinations;innatecapability(geneticallyprogrammed)andexperience.Afirst-timermigrant(候鸟)fliesaccordingtotheEarthsmagneticfield,butdoesnotknowhowfaritwilltakeuntilitgrowsaccustomedtothejourneyandisabletouseitsothercapabilities.Withexperienceitlearnsvariouslandmarksoftencalled“mapping”.MigrationismainlyseenintheNorthernHemisphereandlessobviousintheSouthernHemisphere.Thisisduetothelackofsignificantweatherchangesandthecontinualsupplyoffoodforthebirds.Acommonpatterninmigrationinvolvesflyingnorthinthespringtobread(繁殖)duringthesummerandtravelingtothesouthinthefallintowarmerregions.Notwospeciesfollowtheexactroutefrombeginningtoend.Migrationsnarrowintooneormorepreferredroutesoroftencalled“flyways”.Flywaysmainlyfollowcoasts,sometimesrivers,ormountainranges.TherearefourmajorNorthAmericanflyways;theAtlantic,theMississippi,theCentralandthePacificFlyways.Theflywaysarenotdefinedintheirboundariesandattimesmaybecombinedintoone.Infact,longdistancemigrantsmoveawayfromeachotherasyoungbirdsandformattachmentstopotentialbreedingandwinteringsites.Oncethesiteattachmentismade,birdsshowhighsite-faith,visitingthesamesitesyearafteryear.Youwillwanttoensureyournestingboxesarecleanedoutandavailablewhenthesebirdsreturntokeepthecyclegoingforthesemigratingspecies.BirdmigrationPassageoutlineSupportingdetailsWhydobirdsmigrate?

Besides1.,migrationhassomethingtodowithbirdsphysicalchangesanddaylengthchanges.

Whataretheadvantagesofnightmigrating?

Nightmigratinghelpsminimizethe2.ofbeingthreatenedbypredators.

Nightmigratingallowsbirdstofeedenoughduringthedaywithoutoverheating.3.dobirdsmigrate?

Thesun,magneticfield,visuallandmarksandthesenseofsmellareall4.forbirdstomigrate.

Environmentalchangesareconnectedwithbirdstimingandroute.

Notonlymagneticfieldbutalsosomeothercapabilitiesand5.relatetoafirst-timermigrantsflying.

Wheredobirdsmigrate?

Migrationmainlytakesplaceinthe6.Hemisphere.

Withfourmajorflywaysbirdsmainlyfly7.coasts,rivers,ormountainranges.

What8.canyoudrawfromthebirdmigration?

Birdsare9.totheirsiteattachmentverymuch.

Youmustmakesurethecleanboxesare10.beforethebirdscomeback.

参考答案自主预习1.e2.b3.d4.f5.g6.c7.a8.h9.l10.n11.m12.j13.k14.o15.i课堂探究二、Task1:aTask2:Paragraph1:b;Paragraph2:a;Paragraph3:d;Paragraph4:e;Paragraph5:cTask3:①Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.②Thescientistshavefoundouthowthemonarchbutterflymanagestoreachtheplaceswhereitwillspendthewinter.③Themonarchisabletotellthetimeofdayandthepointwherethesunisinthesky.④Becauseofhumanactivitiesthenumberofthemonarchhascrashedbyasmuchas90percentinthelastfewyears.⑤Theresearchonthemonarchsbehaviorhasledtoagreaterawarenessofitandpeoplehavebeenworkingtogethertorecorditsmigrationandmakesurethereareenoughplantsforittofeedon.Task4:1.thetimeofday2.thewaytogo3.thepositionofthesun4.theplacewhereitwillspendthewinter5.cutdown6.place7.killtheplants8.hascrashedbyasmuchas90perce