Unit5IntothewildPeriod1StartingoutUnderstandingideas课件-高一英语

外研版必修第一册Unit5Period1Startingout&Understandingideas(I)教学目

Lead-in1Watchthevideoandanswerthequestions.1.WhatarethemostpopularpetsintheUK?2.WhatisthemostimportantanimalcharityintheUK?Catsanddogs.TheRSPCA(theRoyalSocietyforthePreventionofCrueltytoAnimals).2Lookatthepicturesandanswerthequestions.1.Whataretherelationshipsbetweenthepeopleandtheanimals?2.Whatanimalsdoyouofteninteractwith?Whatisyourrelationshipwiththem?petownerandpetblindpeopleandguidedoghorsemanandhorseownerandlivestock12Togetthemainideaofthepassageandunderstandthemonarchbutterfly’sfeaturesandhowitmigrates;Tounderstandthemeaningofexpressionsinthepassage,talkaboutyourideasaboutwhatpeoplecandotohelpprotectthemonarchbutterfly.目标一:Togetthemainideaofthepassageandunderstandthemonarchbutterfly’sfeaturesandhowitmigrates.

Activity1:Lookatthepicturesandchoosetheanimalsthatmigrate.defamonarchbutterflybSiberiancranecAtlanticsalmonredpandaKillerwhaleAfricanlion√√√√Nowtalkaboutwhatyouknowaboutanimalmigration.Activity2:Gothroughthepassagequicklyandanswerthequestions.Whatisthemainideaofthepassage?

A.Themonarch'smigration.

B.Thereasonsformonarch'smigration.

C.Mexico'smonarch.√Activity3:Matchthemainideaofeachparagraphandthenanalyzethestructureofthispassage.Para1 Themonarch’smigration.Para2 Thedefinitionofmigration.Para3 Theeffectsoftheresearch.Para4 Howdoesthemonarchfinishitsmigration?Para5 Why'sthenumberofthemonarchfalling?Part1(Para.1&2)BackgroundintroductionPart2(Para.3~5)Theresearchonthemonarch’smigrationActivity4:Choosewhereyouaremostlikelytofindthepassage.1.Inascientificresearchpaperaboutthemonarchbutterfly’smigration.2.Inapopularnaturemagazineintroducingthemonarchbutterfly.3.InatravelleafletencouragingpeopletovisitNorthAmerica.√Activity5:Readthepassageandfindoutwhatmysterythescientistshavesolved.Thescientistshavesolvedthemysteryofhowmonarchbutterfliesmanagetotravelalongdistanceandfindtheirwaytotheirdestination.Activity6:Readthepassageagainandfinishthefollowingtasks.Task1:ReadPara.1andanswerthequestions.1.What’sthemigration?

(Definition)2.Whydotheanimalsmigrate?(Reasons)1

Theannualmovementofmanyanimalsfromoneplacetoanotheratcertaintimesoftheyear.2Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.Task2:ReadPara.2andfillinthechart.Themonarchbutterfly’smigrationTimeDestinationDistanceEveryautumnCaliforniaorMexico4,000kilometresTask3:ReadPara.3andanswerthequestions.1Howdoesthemonarchmigrate?2Whofindthemysteryofhowthemonarchmigrate?1Themonarchisabletotellthetimeofday.Itusesitseyestomeasurethepositionofthesun.Thesetwopiecesofinformation-thetimeofdayandthepointwherethesunisinthesky-allowthebutterflytodeterminethewaytogo.2AteamofscientistsledbyProfessorEliShlizermanattheUniversityofWashington.Task4:ReadPara.4&5,answerthequestions.1Whatisthemainreasonwhythemonarch’spopulationfalls?2Whatisthepositiveeffectoftheresearchonthemonarch’sbehavior?1Humanactivityisthemainreasonwhythenumberofmonarchbutterfliesisfalling.Inmanyoftheplaceswherethebutterflycanbefound,peoplearedestroyingthenaturalenvironment.Theycutdowntreesandusechemicalsthatkilltheplantsthatmonarchcaterpillarseat.2Theresearchonthemonarch'sbehaviourhashoweverledtoagreaterawarenessofthiscreature.a.Themonarchbutterflyisabletotell_____________.b.Usingthesetwopiecesofinformation,themonarchbutterflydetermines_____________.c.Themonarchbutterflymeasures____________________withitseyes.d.Themonarchbutterflyreaches___________________________________.thetimeofdaythewaytogothepositionofthesuntheplaceswhereitwillspendthewinter

da/cc/ab

he.

Humans

_________trees.f.

The________________________________wheremonarchscanbefoundisdestroyed.g.

Humansusechemicalsthat_____________thatmonarchcaterpillarseat.h.Themonarchbutterfly’s

population

____________________________________inthelastfewyears.cutdownnaturalenvironmentofmanyplaceskilltheplantshascrashed(byasmuchas90percent)e/gg/efActivity1:Findtheimportantwords,phrases,andlanguagepointsyouwanttosharetheirusagetoyourpartner.Discussingroupsandthensharewiththeclass.目标二:Tounderstandthemeaningofexpressionsinthepassage,talkaboutyourideasaboutwhatpeoplecandotohelpprotectthemonarchbutterfly.1seekvt.寻找，寻求(教材原句P50)Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.他们迁徙或为了寻找食物，或为了寻找伴侣，或为了寻找温暖的天气。[例]

Hesoughtouthisfriendinthecrowd.他在人群中找到了他的朋友。【拓展】seektodosth.设法、企图做某事seekafter/for追求，探索seekout搜寻出；挑选出；找到seekone'sfortune外出寻找发财机会，外出闯荡2measurev.量，测量；衡量linkingverb(指尺寸、长短、数量等)量度为

n.措施，方法；计量标准(教材原句P50)Theyhavefoundoutthatthemonarchisabletotellthetimeofday.Itusesitseyestomeasurethepositionofthesun.他们发现黑脉金斑蝶可以分辨出一天的时刻。它用眼睛来测量太阳的方位。[例]

Thetailoraskedmetostandtheretomeasuremywaist.裁缝让我站那里测量一下我的腰围。[拓展]takemeasurestodosth.采取措施做某事toone'sownmeasure按照某人自己的尺寸①Thelocalgovernmentissupposedtotakeeffectivemeasurestoprotect(protect)wildlifeinnotime.②Thetablemeasures(measure)atleast1.50metersinlength.3determinev.测定，确定，查明，准确算出；决定；安排(教材原句P50)Thesetwopiecesofinformation—thetimeofdayandthepointwherethesunisinthesky—allowthebutterflytodeterminethewaytogo.这两条信息——一天中的时刻和太阳在空中的方位——让黑脉金斑蝶确定它的路线。[例]

Nomatterwhathappens,shehasdeterminedtotellthetruth.无论发生什么事，她都已经决定把真相说出来。(1)determinetodosth.

(表示动作)决心做某事，决定做某事determineonsth.决心/决定……(2)determinationn．[U]决心，果断，坚定，决定，确定(3)determinedadj.坚定的，坚决的bedeterminedtodosth.(表示状态)决心做某事，决意做某事①Iamdeterminedtomake(make)fulluseofmysparetimetodoexercise.②Hepattedmeontheshoulder,withadetermined(determine)look,sayingthatIhadthechancetosucceed.4destroyv.破坏，摧毁，毁掉(教材原句P51)Inmanyoftheplaceswherethebutterflycanbefound，peoplearedestroyingthenaturalenvironment.在黑脉金斑蝶生存的许多地方，人们正在破坏自然环境。[例]

AnumberofpaintingsinCathédraleNotreDamedeParisweredestroyedinafirein2019.巴黎圣母院里的许多油画在2019年被一场大火毁掉了。[拓展]destructionn.破坏，摧毁，毁灭destructiveadj.毁灭性的，引起破坏的[词义辨析]

destroy，damage，ruindestroyv.多指彻底的、毁灭性的破坏，含有不能或很难再修复的意味。damagev.&n.多指对价值和功能的破坏，多用于无生命的事物，一般还可以修复。ruinv.&n.多指出于外部原因而受到严重破坏以致不能修复，且这种破坏使某物失去价值或用处。也可用于引申意义，表示希望、愿望的破灭。6替代词that的用法(教材原句P50)OneofthemostwonderfulmigrationsinnatureisthatoftheNorthAmericanmonarchbutterfly.北美黑脉金斑蝶的迁徙是大自然中最为美妙的迁徙之一。句式分析：本句是简单句，that替代的是themigration。[例1]Theweathertodayisnobetterthanthatofyesterday.今天的天气比昨天好不到哪里去。(that替代的是theweather)(1)通常情况下，这一句式中的前者即前一个“the＋比较级(＋主语＋谓语)”相当于条件状语从句；后者即后一个“the＋比较级(＋主语＋谓语)”相当于主句。(2)该句式表示后者随着前者的变化而变化。(3)在表示将来意义的情况下，前者常用一般现在时，后者常用一般将来时。(4)如果句意明确，该句式常以省略形式出现，即“the＋比较级，the＋比较级”。如Themore,thebetter。[例1]

Theharderyoustudy,themoreprogressyouwillmake.你越是努力学习，你获得的进步就会越多。[例2]

Themoreheexplained,themoreconfusedwebecame.他越解释，我们越困惑。Activity2:Tofillintheblankswithawordortherightformofthewordthethebracketaccordingtothecontentofthepassage.Atcertaintimesoftheyear,wecanseemanyanimalsmovefromoneplaceto1.__________.Thismovementis

2.

__________(call)

migration.

Theymigrate3.____