Unit 5 Understanding ideas （ppt课件+2课时）-2022新外研版（2019）《高中英语》必修第一册.rar

1.OneofthemostwonderfulmigrationsinnatureisthatoftheNorthAmericanmonarchbutterfly.oneof+名词复数，谓语动词用单数，名词复数，谓语动词用单数，表示表示“中之中之一一”；that用来指代前面提到的内容用来指代前面提到的内容，所指代的名词可，所指代的名词可以是可数名词，也可以是不可数名词。这一用法可以让以是可数名词，也可以是不可数名词。这一用法可以让句子更加简洁，避免重复与累赘。句子更加简洁，避免重复与累赘。【语境应用语境应用】给下列句子指出一处错误。给下列句子指出一处错误。1)Oneofmyfavoritesportsarejogginginthemorning.2)Youmustnoticethatoneofyourshortcomingislackofpatience.isshortcomings改写下面一句话，使句子变得更加简洁。改写下面一句话，使句子变得更加简洁。ThepopulationofChinaislargerthanthepopulationoftheUK.that2.Everyautumn,millionsofthesebeautifulinsectswithfineblackandorangewingsbeginalonganddifficultjourney.millionsof,hundredsof,thousandsof,billionsof等属于等属于概数词，概数词，of后面接后面接可数名词复数可数名词复数，短语前面，短语前面不可以加具不可以加具体的数词体的数词。egMillionsofpeoplewentbacktotheirhometownatSpringFestival.【拓展拓展】hundred/thousand/million/billion用法：用法：具体的具体的数词数词+hundred/thousand/million/billion(单数形式单数形式)hundreds/thousands/millions/billions(复数形式复数形式)+of+n.Twohundredpeopleareenoughforthework.Billionsofstarstwinkledinthesky.3.Somehowtheymanagetotravelaround4,000kilometressouthandfindtheirwaytoCaliforniaorMexico.managevt.&vi.tosucceedindoingsomething,especiallysomethingdifficult 完成完成(困难的事困难的事)，勉力完成，勉力完成managetodosth设法做成设法做成某某事事manageit设法完成某事设法完成某事egWemanagedtogettotheairportintime.CanIhelpyouwithit?Iappreciateyouroffer,butIcanmanageitmyself.managev.beinchargeof(sth);run管理，负责管理，负责(公司、队公司、队伍、组织等伍、组织等)egHemanagedthesupermarketwhentheownerwasaway.Mostfactoriesintheareaareoldandbadlymanaged.易混易混词组区区别例句例句managetodosth.表示表示“设法做成了某事法做成了某事”，重在，重在结果，相当于果，相当于succeedindoingsth.Wemanagedtogetthereontime.我我们设法按法按时到达了到达了那里。那里。(结果是按果是按时到达了到达了)trytodosth.表示表示“尽力做某事，尽力做某事，设法做某事法做某事”，重在，重在动作，作，但并不一定成功，相当但并不一定成功，相当于于attempttodosth.Wetriedtogetthereontime.我我们尽力按尽力按时赶到那里。赶到那里。(不知是否按不知是否按时到达了到达了)managetodosth.与与trytodosth.A:Theproblemisquiteachallengeforme,althoughIve_mybest_(solve)it.Idecidetogiveitup.B:Dontworry.Icanhelp.A:Sogladtohearthat.Pleasedohaveatry.B:(some time later)Yes.Ive_(solve)it.Comehere.LetmeshowyouhowIworkeditout.【语境应用语境应用】用用manage和和try填写下列对话，体会二者的区填写下列对话，体会二者的区别。别。triedtosolvemanagedtosolve4.Itusesitseyestomeasurethepositionofthesun.positionn.Aplaceorlocation.位置位置Apostofemployment;ajob.职位职位position作先行词表示作先行词表示“状态，位置状态，位置”时，若定语从句缺时，若定语从句缺状语，应用状语，应用where引导定语从句。引导定语从句。egIcantellthetimefromthepositionofthesun.Wehavereachedapositionwhereachangeisneeded.positionvt.toputsomethingorsomeoneinaparticularplace安置安置locate定位定位egTheypositionthetaskbymeansofradar.当先行词为当先行词为system,case,point,position,situation,stage,condition,industry,activity,job,race,scene,circumstance,family等且关系词在从句中作地点状语时，常用等且关系词在从句中作地点状语时，常用where引导引导定语从句，表示抽象地点。定语从句，表示抽象地点。当先行词为当先行词为occasion等表示时间且关系词在定语从句中作时等表示时间且关系词在定语从句中作时间状语时，用间状语时，用when引导。引导。【语境应用语境应用】单句语法填空。单句语法填空。Youreachapoint_medicinecanthelp.完成句子。完成句子。1)Canyouimaginesuch_?你能想象你没有朋友的状态吗？你能想象你没有朋友的状态吗？2)Marketresearchcanhelpacompany_.市场调查有助于公司给自己的产品定位。市场调查有助于公司给自己的产品定位。wherepositionswhereyouhavenofriendstopositionhisownproduct5.Thesetwopiecesofinformationthetimeofdayandthepointwherethesunisintheskyallowthebutterflytodeterminethewaytogo.determinevt.todiscoverthefactsortruthaboutsomething测定，确定，查明测定，确定，查明Calculate准确算出准确算出Toreachadecision;resolve.SeeSynonymsatdecide决定决定egWesetouttodeterminewhathappenedthatnight.Thedateforthemeetinghasyettobedetermined.determinev.makeuponesmindaboutsth;resolve决心决心(做某事做某事)determinetodosth.(表示动作表示动作)决心做某事，决定做某事决心做某事，决定做某事determineonsth.决心决心/决定决定egGreatlyencouragedbywhattheteachersaid,theboyreturnedtohisseat,determinedtostudyharder.Theydeterminedonanearlystart.determinationn.决心，果断；坚定；决定；确定决心，果断；坚定；决定；确定withdetermination顽强地，有决心地顽强地，有决心地determinedadj.决心，决意决心，决意(不用于名词前不用于名词前)；坚定的，坚决的；坚定的，坚决的bedeterminedtodosth.(表示状态表示状态)决心做某事，决意做某事决心做某事，决意做某事【语境应用语境应用】单句语法填空。单句语法填空。1)_(determine)tobemyself,moveforward,freeofshameandworldly labels(世俗标签世俗标签),Icannowcallmyselfa“marathonwinner”.2)Whereheoncefeltlikegivingup,henowhasthe_(determine)topushfurtherandkeepongoing.Determineddetermination6.Thesolutiontothemysteryofthemonarchsamazingabilitycomesatatimewhenitisinserioustrouble.thesolutiontosth.的解决方法的解决方法常见的用介词常见的用介词to的短语有：的短语有：thekeytosth.的钥匙的钥匙/关键所在关键所在theanswertosth.的答案的答案thewaytosth.的方法的方法/道路道路theentrancetosth.的入口的入口in(serious)trouble:inanunpleasant,difficultordangeroussituation在困扰中在困扰中egHeisinserioustroubleandneedsmyhelp.“in+抽象名词抽象名词”短语有：短语有：indanger,indebt(处于负债中处于负债中),indespair(处于绝望中处于绝望中),indoubt,inneed,inpeace,inpower,insilence,inshock等等7.Thesolutiontothemysteryofthemonarchsamazingabilitycomesatatimewhenitisinserioustrouble.amazingadj.extremelysurprising惊人的惊人的excellent了不起的了不起的在句中可作表语、定语或补语，用来说明主语或所修饰词在句中可作表语、定语或补语，用来说明主语或所修饰词的特征。的特征。egItwasamazingthatshecouldbesocalminsuchasituation.amazevt.使惊奇使惊奇amazedadj.惊奇的惊奇的beamazedat/by/that对对感到惊讶感到惊讶beamazedtodosth.惊讶地做某事惊讶地做某事amazementn.惊奇，惊诧惊奇，惊诧toonesamazement令某人感到惊讶的是令某人感到惊讶的是inamazement惊讶地惊讶地amazing是由动词是由动词amaze转化而来的形容词，常见的由动词转化而来的形容词，常见的由动词转化成形容词的词还有：转化成形容词的词还有：delighting,disappointing,exciting,interesting,surprising,satisfying,worrying等。等。注意：注意：以以-ing结尾的形容词通常表示人或事物的性质或特征，常译结尾的形容词通常表示人或事物的性质或特征，常译为为“令人令人的的”；以；以-ed结尾的形容词通常说明人的状态、结尾的形容词通常说明人的状态、神态、外貌、表情、情绪等，常译为神态、外貌、表情、情绪等，常译为“感到感到的的”。除以。除以上几个词外，常见的表示情感的动词还有：上几个词外，常见的表示情感的动词还有：annoy,bore,confuse,convince,encourage,delight,frighten,inspire,puzzle,tire,move等。等。【语境应用语境应用】用用amaze的适当形式填空。的适当形式填空。1)The_lookonherfaceshowedthatshewas_toseewhathadhappened.2)Muchtomy_(amaze),hewasabletorecitethewholepoemfrommemory.3)Theforeignersare_bythe_achievementsthattheChinesehavemadeinthedevelopmentofeconomy.amazedamazedamazementamazedamazing8.Itspopulationhascrashedbyasmuchas90percentinthelastfewyears.population人口，人口数量，作主语时谓语动词单复数根人口，人口数量，作主语时谓语动词单复数根据意思来定。据意思来定。提问人口数量多少时只能用提问人口数量多少时只能用what，不能用，不能用howmany。egThepopulationisincreasingatabout6%peryear.(population当做整体当做整体)Onethirdoftheworldspopulationconsume(s)twothirdsoftheresources.WhatsthepopulationofChina?crashv.suddenlylosealot暴跌暴跌crashv.tohitextremelyhard碰撞，碰撞，撞击撞击crashinto/crashinto撞上撞上toloseverybadlyinasport溃败，溃败，惨败惨败egSharepricescrashedtoanall-timelow(前所未有的低前所未有的低记录记录)yesterday.Atrackwentoutofcontrolandcrashedintothebackofabus.Icrashedcompletelyinthefirstround.crashn.aviolentcollision,typicallyofonevehiclewithanotherorwithanobject碰撞碰撞aninstanceofanaircraftfallingfromtheskytohitthelandorsea(飞机的飞机的)坠毁坠毁asuddendisastrousdropinthevalueorpriceofsomething,especiallyshares暴跌暴跌egTherewasaseriouscarcrashhere.Manyinvestorssufferedhugelossesintherecentstockmarketcrash.【语境应用语境应用】指出下列句子中指出下列句子中crash的意思和词性。的意思和词性。1)Thetreefellwithagreatcrash.2)Filescanbelostifthesystemsuddenlycrashes.3)Agirlwasserioushurtintheyesterdayscarcrash.4)Shewentoutoftheroomangrilyandcrashedthedoorheavilybehindher.n.破裂破裂声声v.奔奔溃溃n.撞车撞车v.猛撞，碰撞猛撞，碰撞9.Sadly,humanactivityisthemainreasonwhythenumberofmonarchbutterfliesisfalling.thenumberof的数量的数量中心词是中心词是number,在句中作主在句中作主语时语时谓语动词单复数和谓语动词单复数和number一致一致。【拓展拓展】anumberof+n.pl，许多，大量，许多，大量可用可用large或或small来修饰。作主语时，来修饰。作主语时，谓语动词用复数谓语动词用复数。【语境应用语境应用】用用be的恰当形式填空的恰当形式填空。Nowadays,alargenumberofanimals_(be)indangerbecauseofhumanactivities.Governmentandscientistshavedonealottoprotectthem.So,thefutureisbright.Wedobelievethatthenumberofsomeanimals_(be)increasingdaybyday.areis10.Inmanyoftheplaceswherethebutterflycanbefound,peoplearedestroyingthenaturalenvironment.destroyv.todamagesomethingsobadlythatitdoesnotexistorcannotbeused破坏，摧毁，毁掉破坏，摧毁，毁掉egAnumberofpaintingsinthiscastleweredestroyedinafirein2009.destructionn.破坏，摧毁，毁灭破坏，摧毁，毁灭destructiveadj.毁灭性的，引起破坏的毁灭性的，引起破坏的destroy,damage与与ruin易混易混词区区别例句例句destroyv.多指多指彻底的、底的、毁灭性的破坏，含有性的破坏，含有不能或很不能或很难再修复的意味。再修复的意味。Anatombombwoulddestroyacity.damagev.&n.多指多指对价价值和功能的破坏，多和功能的破坏，多用于无生命的事物，一般用于无生命的事物，一般还可以修复。可以修复。Smokingcanseverelydamageyourhealthruinv.&n.多指出于外部原因而受到多指出于外部原因而受到严重重破坏以致不能修复，且破坏以致不能修复，且这种破坏使某种破坏使某物的价物的价值或用或用处失去。也可用于引申失去。也可用于引申意意义，表示希望、愿望的破，表示希望、愿望的破灭。Therainyweatherlastedforacoupleofdays,completelyruiningourplanforapicnic.【语境应用语境应用】用用ruin,destroy,damage的适当形式填空。的适当形式填空。1)Severalhousewereslightly_bythestorminthevillage.2)Oneofmyfriendsaskedmetohelphimwithhislessonsthisweekend,andthis_myplan.3)Datashowsthatnearly19770acres(英亩英亩)oftheBrazilianrainforests_betweenAugust2015andJuly2016.damagedruinedweredestroyed11.Theycutdowntreesandusechemicalsthatkilltheplantsthatmonarchcaterpillarseat.本句中包含两个由关系代词本句中包含两个由关系代词that引导的定语从句引导的定语从句。第一个。第一个定语从句中，先行词是定语从句中，先行词是chemicals，关系代词，关系代词that在定语从在定语从句中作句中作主语主语，可用，可用which替换；在第二个定语从句中，先替换；在第二个定语从句中，先行词是行词是plants，that在定语从句中作在定语从句中作宾语宾语，可省略。，可省略。12.Themoreweknowaboutthislovelycreature,thegreaterthechanceitwillsurviveandkeepitsplaceinthenaturalworldforalongtimetocome.the+比较级比较级,the+比较级比较级越越.越越(前者是条件，后者是结果前者是条件，后者是结果)egThemoreIknowhim,themoreIlikehim.Theharderyouwork,theluckieryouwillbe.比较级的其他常用结构：比较级的其他常用结构：比较级比较级+and+比较级比较级moreandmore+多音节形容词或副词多音节形容词或副词egChinaisbecomingstrongerandstronger.the+比较级比较级+ofthetwo+可数名词复数可数名词复数，表示，表示“两者中比两者中比较较的那一个的那一个”。egBobisthetallerofthetwoboys.越来越越来越(表示表示自身程度的改变自身程度的改变)【语境应用语境应用】翻译下列句子。翻译下列句子。1)中国人民的生活越来越好。中国人民的生活越来越好。2)我对这个城市了解的越多，就越喜欢它我对这个城市了解的越多，就越喜欢它。完成句子。完成句子。她对考试越来载有信心了。当然，她学习越努力，考试成绩她对考试越来载有信心了。当然，她学习越努力，考试成绩就越好。就越好。Sheisgetting_confidentabouttheexamsandofcourse,_shestudies,_resultsshewillget.ThelivesofChinesearebetterandbetter.ThemoreIknowaboutthecity,themoreIloveit.moreandmoretheharderthebetterlovelyadj.pleasantorenjoyable可爱的，令人愉快的可爱的，令人愉快的英语中有些以英语中有些以“-ly”结尾的词是结尾的词是形容词形容词，常见的有：，常见的有：friendly，likely(很可能的很可能的)，deadly(致命的致命的)，lively(活泼活泼的的)，lonely(孤独的，荒凉的孤独的，荒凉的)，ugly，silly，daily，weekly，monthly，yearly等。等。其中其中daily，weekly，monthly，yearly也可以用作也可以用作副词副词。survivev.continuetoliveorexist,especiallyinspiteofdangerorhardship活下来活下来continuetoliveorexistinspiteof(anaccidentorordeal)幸存幸存survivefrom+时间时间从从存留下来存留下来surviveonsth.(=liveonsth.)依靠依靠生活生活survivesth.幸免于幸免于，从，从中艰难度过中艰难度过egManycustomshavesurvivedfromearliertimes.Thepoorfamiliessurvivedonrelief.Thecompanymanagedtosurvivethecrisis.survivaln.幸存，生存，存活幸存，生存，存活survivorn.幸存者，生还者幸存者，生还者注意：注意：survive用作及物动词时，本身已表示用作及物动词时，本身已表示“幸存，幸免于难幸存，幸免于难”，因而后面可直接加，因而后面可直接加war,flood,fire,accident,earthquake,explosion,crisis等表示灾难的名词，不能再等表示灾难的名词，不能再加加in或或from等介词。等介词。【语境应用语境应用】单句语法填空。单句语法填空。1)Masteringsomebasicskillswillgreatlyincreaseyourchancesof_.Lastweekthankstotheskillsheandhisfriendsucceededin_theseverefloodsandtheyweretheonlytwo_(survive)2)Mygrandmapassedawaylastyearandshesurvivedmygrandpa_tenyears.3)Swifts(雨燕雨燕)arethetypicalsignofsummerintheUKandmanypeoplebelievetheir_(arrive)markstheofficialstartoftheseason.survivalsurvivingsurvivorsbyarrivalUnit 5Unit 5Into the wildInto the wildToskimthepassagebyfocusingonkeywordstogetthemainideaTounderstandthemonarchbutterflysfeaturesandhowitmigratesToknowwhythenumberofmonarchbutterfliesfallsandwhatpeopleshoulddotoimprovetheconditionmonarchmonarchbutterflyAtlanticwhaleannualmigrationmigrateseekn.君主，国王君主，国王黑脉金斑蝶黑脉金斑蝶adj.大西洋的大西洋的n.鲸鲸adj.一年一度的，每年的一年一度的，每年的n.迁徙迁徙v.移栖，迁徙移栖，迁徙v.寻找，寻求寻找，寻求ReadafterthetapeandspeakouttheChineseimmediately.professormeasurepositiondetermineeventuallysolutionmysteryamazingn.教授教授v.量，测量量，测量n.位置位置v.测定，确定测定，确定adv.终于，最终终于，最终n.解决，解决方法解决，解决方法n.难以理解的事物，谜难以理解的事物，谜adj.惊人的，了不起的惊人的，了不起的crashpercentdestroychemicalcaterpillarcreaturesurviveeffectflowchartv.暴跌暴跌n.百分比百分比v.破坏，毁掉破坏，毁掉n.化学品化学品n.毛虫（蝴蝶等昆虫的幼虫）毛虫（蝴蝶等昆虫的幼虫）n.生物，动物生物，动物v.活下来，幸存活下来，幸存n.影响，结果影响，结果流程图流程图，作业图，作业图Look at the following pictures.Can you use one or two words to describe their action?Watch and sayWatch and sayWhatphenomenonismentionedinthevideo?AnimalmigrationAnimalmigrationreferstothemovementofaspecies(物种物种)fromonehabitat(栖息地栖息地)toanotherinresponsetoseasonalchangestotheenvironment.Oftencoveringgreatdistancesandinvolvinghugenumbersofanimals,itcanbefascinatingtoobserve.Migrationhappensinallpartsoftheanimalkingdom,fromfishandinsectstobirds,reptiles(爬行动物爬行动物)andmammals(哺乳动物哺乳动物).Whatis“animalmigration”?Whydoanimalsmigrate?Whendoanimalsmigrate?Canhumanactivitiesinfluenceonanimalmigration?How?Look at the pictures and choose the animals that migrate.Theanimalsthatmigrateincludemonarchbutterfly,Siberiancrane,Atlanticsalmon,andsometypesofkillerwhales.Now talk about what you know about animal migration.The Monarchs Journey TitleThetopicsentencePictureA.Themonarchsmigration.B.Thereasonsformonarchsmigration.C.Mexicosmonarch.Themainideaofapassagecanbefoundfromitstitle,thetopicsentences,oreventhepictures.TipsGo through the passage quickly and get its main idea.Read the passage and find out what mystery the scientists have solved.Thescientistshavesolvedthemysteryofhowmonarchbutterfliesmanagetotravelalongdistanceandfindtheirwaytotheirdestination.1.Inascientificresearchpaperaboutthemonarchbutterflysmigration.2.Inapopularnaturemagazineintroducingthemonarchbutterfly.3.InatravelleafletencouragingpeopletovisitNorthAmerica.Choose where you are most likely to find the passage.Why do you choose that answer?Match the main idea with its corresponding paragraph.Paragraph1a.AnexplanationofanimalsmigrationParagraph2b.HumaneffortstoprotectmonarchbutterfliesParagraph3c.ThemagicalmigrationofmonarchbutterfliesParagraph4d.TheeffectsofhumanactivityonmonarchbutterfliesParagraph5e.TheabilitiesofmonarchbutterfliessuccessfulmigrationFrom the arrangement of the passage,which parts do you think are more important in the passage?Why?paragraph3,4and5Thewriteruseslongerparagraphstotellusmoreinformation-themonarchbutterflysmigration,troubleandpeopleseffortstoimproveitsconditions.Read the text(pp.50-51)and Fill in the blanks in the chart.TheresearchonthemonarchbutterflyThe_ofitsmigrationItspopulation（tobecontinued）mystery Itcan_itsidealplace.Peopleare_theenvironment.The_werekilledandthereisnofoodforthemonarchcaterpillars.Ithastheabilitytotellthe_.Itcanfindoutthe_ofthesun.Thepopulationofthemonarchhas_by90%.timedestroying positionplantsreachdecreased1.Whydomanyanimalsmigrate?(Para.1)2.Howdoesthemonarchdeterminethewaytogo?(Para.3)3.Whathashappenedtothemonarchinthepastfewyearsandhowdidithappen?(Para.4)4.Whatsthesignificanceoftheresearchonthemonarch?(Para.5)Read paragraph by paragraph to answer the following questions.1.Theymigratetofindfood,seekapartner,orinsearchofwarmerweather.2.Themonarchisabletotellthetimeofthedayandthepointwherethesunisinthesky.3.Becauseofhumanactivities,thenumberofthemonarchhascrashedbyasmuchas90percentinthepastfewyears.4.Theresearchonthemonarchsbehaviorhasledtoagreaterawarenessofitandpeoplehavebeenworkingtogethertorecorditsmigrationandmakesurethereareenoughplantsforittofeedon.Checkyouranswers!Complete the sentences with expressions from the passage.Then use the sentences to complete the“cause-effect”flow charts.a.Themonarchbutterflyisabletotell_.b.Usingthesetwopiecesofinformation,themonarchbutterflydetermines_.thetimeofdaythewaytogoc.Themonarchbutterflymeasures_withitseyes.d.Themonarchbutterflyreaches_.thepositionofthesuntheplaceswhereitwillspendthewintera/cc/abde.Humans_trees.f.The_wheremonarchscanbefoundisdestroyed.g.Humansusechemicalsthat_thatmonarchcaterpillarseat.h.Themonarchbutterflyspopulation_inthelastfewyears.cutdownnaturalenvironmentofmanyplaceskilltheplantshascrashed(byasmuchas90percent)he/gg/efMatch the causes and the effects.1.Themonarchbutterflyisabletotellthetimeofday.2.Peoplecutdowntreesandusechemicals.3