Unit5IntothewildPeriod1StartingoutUnderstandingideas課件-高一英語(yǔ)

外研版必修第一冊(cè)Unit5Period1Startingout&Understandingideas(I)教學(xué)目

Lead-in1Watchthevideoandanswerthequestions.1.WhatarethemostpopularpetsintheUK?2.WhatisthemostimportantanimalcharityintheUK?Catsanddogs.TheRSPCA(theRoyalSocietyforthePreventionofCrueltytoAnimals).2Lookatthepicturesandanswerthequestions.1.Whataretherelationshipsbetweenthepeopleandtheanimals?2.Whatanimalsdoyouofteninteractwith?Whatisyourrelationshipwiththem?petownerandpetblindpeopleandguidedoghorsemanandhorseownerandlivestock12Togetthemainideaofthepassageandunderstandthemonarchbutterfly’sfeaturesandhowitmigrates;Tounderstandthemeaningofexpressionsinthepassage,talkaboutyourideasaboutwhatpeoplecandotohelpprotectthemonarchbutterfly.目標(biāo)一:Togetthemainideaofthepassageandunderstandthemonarchbutterfly’sfeaturesandhowitmigrates.

Activity1:Lookatthepicturesandchoosetheanimalsthatmigrate.defamonarchbutterflybSiberiancranecAtlanticsalmonredpandaKillerwhaleAfricanlion√√√√N(yùn)owtalkaboutwhatyouknowaboutanimalmigration.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.目標(biāo)二:Tounderstandthemeaningofexpressionsinthepassage,talkaboutyourideasaboutwhatpeoplecandotohelpprotectthemonarchbutterfly.1seekvt.尋找，尋求(教材原句P50)Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.他們遷徙或?yàn)榱藢ふ沂澄?，或?yàn)榱藢ふ野閭H，或?yàn)榱藢ふ覝嘏奶鞖?。[例]

Hesoughtouthisfriendinthecrowd.他在人群中找到了他的朋友?！就卣埂縮eektodosth.設(shè)法、企圖做某事seekafter/for追求，探索seekout搜尋出；挑選出；找到seekone'sfortune外出尋找發(fā)財(cái)機(jī)會(huì)，外出闖蕩2measurev.量，測(cè)量；衡量linkingverb(指尺寸、長(zhǎng)短、數(shù)量等)量度為

n.措施，方法；計(jì)量標(biāo)準(zhǔn)(教材原句P50)Theyhavefoundoutthatthemonarchisabletotellthetimeofday.Itusesitseyestomeasurethepositionofthesun.他們發(fā)現(xiàn)黑脈金斑蝶可以分辨出一天的時(shí)刻。它用眼睛來(lái)測(cè)量太陽(yáng)的方位。[例]

Thetailoraskedmetostandtheretomeasuremywaist.裁縫讓我站那里測(cè)量一下我的腰圍。[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.測(cè)定，確定，查明，準(zhǔn)確算出；決定；安排(教材原句P50)Thesetwopiecesofinformation—thetimeofdayandthepointwherethesunisinthesky—allowthebutterflytodeterminethewaytogo.這兩條信息——一天中的時(shí)刻和太陽(yáng)在空中的方位——讓黑脈金斑蝶確定它的路線。[例]

Nomatterwhathappens,shehasdeterminedtotellthetruth.無(wú)論發(fā)生什么事，她都已經(jīng)決定把真相說(shuō)出來(lái)。(1)determinetodosth.

(表示動(dòng)作)決心做某事，決定做某事determineonsth.決心/決定……(2)determinationn．[U]決心，果斷，堅(jiān)定，決定，確定(3)determinedadj.堅(jiān)定的，堅(jiān)決的bedeterminedtodosth.(表示狀態(tài))決心做某事，決意做某事①Iamdeterminedtomake(make)fulluseofmysparetimetodoexercise.②Hepattedmeontheshoulder,withadetermined(determine)look,sayingthatIhadthechancetosucceed.4destroyv.破壞，摧毀，毀掉(教材原句P51)Inmanyoftheplaceswherethebutterflycanbefound，peoplearedestroyingthenaturalenvironment.在黑脈金斑蝶生存的許多地方，人們正在破壞自然環(huán)境。[例]

AnumberofpaintingsinCathédraleNotreDamedeParisweredestroyedinafirein2019.巴黎圣母院里的許多油畫在2019年被一場(chǎng)大火毀掉了。[拓展]destructionn.破壞，摧毀，毀滅destructiveadj.毀滅性的，引起破壞的[詞義辨析]

destroy，damage，ruindestroyv.多指徹底的、毀滅性的破壞，含有不能或很難再修復(fù)的意味。damagev.&n.多指對(duì)價(jià)值和功能的破壞，多用于無(wú)生命的事物，一般還可以修復(fù)。ruinv.&n.多指出于外部原因而受到嚴(yán)重破壞以致不能修復(fù)，且這種破壞使某物失去價(jià)值或用處。也可用于引申意義，表示希望、愿望的破滅。6替代詞that的用法(教材原句P50)OneofthemostwonderfulmigrationsinnatureisthatoftheNorthAmericanmonarchbutterfly.北美黑脈金斑蝶的遷徙是大自然中最為美妙的遷徙之一。句式分析：本句是簡(jiǎn)單句，that替代的是themigration。[例1]Theweathertodayisnobetterthanthatofyesterday.今天的天氣比昨天好不到哪里去。(that替代的是theweather)(1)通常情況下，這一句式中的前者即前一個(gè)“the＋比較級(jí)(＋主語(yǔ)＋謂語(yǔ))”相當(dāng)于條件狀語(yǔ)從句；后者即后一個(gè)“the＋比較級(jí)(＋主語(yǔ)＋謂語(yǔ))”相當(dāng)于主句。(2)該句式表示后者隨著前者的變化而變化。(3)在表示將來(lái)意義的情況下，前者常用一般現(xiàn)在時(shí)，后者常用一般將來(lái)時(shí)。(4)如果句意明確，該句式常以省略形式出現(xiàn)，即“the＋比較級(jí)，the＋比較級(jí)”。如Themore,thebetter。[例1]

Theharderyoustudy,themoreprogressyouwillmake.你越是努力學(xué)習(xí)，你獲得的進(jìn)步就會(huì)越多。[例2]

Themoreheexplained,themoreconfusedwebecame.他越解釋，我們?cè)嚼Щ?。Activity2:Tofillintheblankswithawordortherightformofthewordthethebracketaccordingtothecontentofthepassage.Atcertaintimesoftheyear,wecanseemanyanimalsmovefromoneplaceto1.__________.Thismovementis

2.

__________(call)

migration.

Theymigrate3.____