新人教八年级上英语课件Unit 4 Amazing Plants and Animals Section B(1a-2d)课件

Unit4AmazingPlantsandAnimalsSectionBHowareplantsandanimalsconnectedwithus?Reading1a-1f+VocabularyinUse2a-2d01020304教学目标能够了解并且谈论动植物和人类的连接及在生态系统中的重要性；能够掌握重点的单词，短语和句型。引导学生观察思考活动，练习联想思维；同时结合各种活动，锻炼学生的综合思维能力。引导学生了解动植物在大自然中的重要性，从而增加保护动植物的意识。通过阅读的各种活动，提高学生的阅读能力；通过由浅入深的内容，帮助学生总结课堂重点内容，掌握知识要点。教学重难点0102能够掌握有关动植物的词汇，短语及重点句型；能够在不同的阅读活动中，锻炼其阅读能力及其子能力。如何引导学生观察与反思，提高学生的发散思维能力；如何引导学生了解动植物的重要性，培养保护他们的意识。Reading

1a-1fSectionB01

1Lead-inThinkandshareWhatanimalsareimportanttoourdailylives?animalsbee（蜜蜂）honeycow（奶牛）milkchicken（鸡）eggsandmeatdog（狗）guardthehousehorse（马）transportationearthworm（蚯蚓）improvesoilquality...

2Pre-reading

Lookatthetitleandthepicturesbelow.Guesswhatthetextisabout.1awithout/wɪˈðaʊt/prep.没有；缺乏

3While-reading(Fastreading)

Readthetextandunderlinetheadjectivesthewriterusestodescribebees.1bhard-workingmostimportantmostinterestinginterestingimportantmostamazing

3While-reading(Carefulreading)Part1.

Readagainandcompletethemindmapwiththeinformationfromthetext.1bBees●theirgreatestwork:_____________________●visit:________________________________●help:________________________________●theirnumberis:_____________________●_______________

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_______________importanceprobleminterestingfactspollination50to100flowersononetripplantsgrowdroppingTheyworkhardtogethertomaketheirhomes.Theycreatehoneycombstostorehoney.Theyuseadancetocommunicatewhereandhowfarawaythefoodiswhentheyfindnewfood.importance/ɪmˈpɔːtns/n.重要性Imagineyougotothesupermarketinyourarea,buttherearealmostnofruits,vegetables,honey,milk,eggs,orchocolate.Howwouldyoufeel?Disappointed?Angry?Sad?Atthismomentyourealizepeople,plants,andanimalsareallconnected.Weneedeachothertolive,andbeesareoneofthebestexamplesofthisconnection.Part2.Let’slearn!Paragraph1connect/kəˈnekt/v.关联；连接/kəˈnektɪd/adj.连接的；相关的/kəˈnekʃn/n.联系；连接beconnectedwith/to与……相连；与……有关联disappointed/ˌdɪsəˈpɔɪntɪd/adj.失望的；沮丧的/ɪˈmædʒɪn/v.想象；猜想Beesareveryhard-workinganimals,andtheirgreatestworkispollination.Ononetrip,theyoftenvisit50to100flowers.Astheyflyfromoneflowertoanother,theytakepollenwiththem.Thisactionhelpsplantsgrow.Infact,withouttheirwork,about80percentoftheplantsintheworldcannotgrow.Forthisreason,manyscientistsbelievethatbeesarethemostimportantanimalsonthisplanet.Paragraph2/ˌpɒləˈneɪʃn/n.授粉as,连词，当......时候pollen/ˈpɒlən/n.花粉/ˈækʃn/n.行动；行为确切地说；实际上/pə

ˈsent/(=percent)n.百分之……adj.&adv.每一百中出于这个原因/ˈplænɪt/n.行星Beesarealsooneofthemostinterestinganimalsintheworld.Forexample,theyworkhardtogethertomaketheirhomes.Inordertostorehoney,theycreatehoneycombs.Anotherinterestingthingaboutbeesishowtheycommunicate.Whenabeefindsnewfood,itusesadancetotelltheotherswhereandhowfarawaythefoodis.Paragraph3为了；以便/stɔː(r)/v.贮存；存储n.百货商店；商店/ˈhʌnikəʊm/n.蜂巢/kəˈmjuːnɪkeɪt/v.交流；沟通Beesplay

animportantpartintheecosystemofourplanet.However,thenumberofbeesisdropping,andscientistsareworried.Theyneedourhelp,andthereisalotwecando.Thinkaboutwhatyoucandotoprotectoneofthemostamazinganimalsonearth.Paragraph4playapart(insth)参与某事/ˈiːkəʊsɪstəm/n.生态系统/prəˈtekt/v.保护；防护

4Post-readingPart1.

Discussthequestions.1b1.Canyougiveanothertitleforthetext?TheVitalRoleofBeesinOurWorldBees:EssentialtoLifeonEarthWhyBeesMattertoUs...Question1title/ˈtaɪtl/n.标题；题目；名称

Question22.Whatotherinterestingfactsdoyouknowaboutbees?Beeshavefiveeyes.Theyhavetwolargecompoundeyesonthesidesoftheirheadandthreesmallsimpleeyes(ocelli)onthetopoftheirhead,whichhelpthemdetectlightandnavigate.Differenttypesofbeeshavedifferentlifespans.Forexample,workerbeesusuallyliveforafewweeksduringthebusysummermonths,whilethequeenbeecanliveforseveralyears.Beescanrecognizehumanfaces.Theyusetheirvisualandolfactorysensestodistinguishdifferenthumanfeatures.Question33.Whatdoyouknowabouttheconnectionbetweenhumansandotherinsects,suchasantsandbutterflies?Foodsource:

Antscanbebothbeneficialandharmfultohumans.Someantshelpcontrolpestsingardensbypreyingonsmallinsects,whichindirectlybenefitshumanagricultureandhorticulture.Ontheotherhand,someantscandamagecropsorinvadehomesinsearchoffood,causinginconveniencetohumans.Ecosystembalance:

Theyplayaroleinsoilaerationastheydigtunnels,whichhelpsimprovesoilstructureandallowsplantrootstogrowbetter.Thisisbeneficialforhuman-relatedplantcultivation.Antshuman/ˈhjuːmən/n.人adj.人的；人类的ant/ænt/n.蚂蚁Question33.Whatdoyouknowabouttheconnectionbetweenhumansandotherinsects,suchasantsandbutterflies?Pollination:

Likebees,butterfliesareimportantpollinators.Theytransferpollenfromoneflowertoanotherwhilefeedingonnectar,whichhelpsplantsreproduce.Thisiscrucialforthegrowthofmanyplantsthathumansrelyonforfood,medicine,andornamentalpurposes.Indicatorspecies:Theirpresenceorabsencecanindicatethehealthofanecosystem.Adeclineinbutterflypopulationsmaysignalenvironmentalproblemssuchaspollutionorhabitatloss,whichalsoultimatelyaffectshuman-livingenvironments.butterfliesPart2.

Imagineyouarethewriter.Writeonemoreparagraphaboutbeesandaddittothetext.1eTherearemanywayswecando.First,wecanplantbee-friendlyflowersandplantsinourgardensorbalconies.Theseprovidebeeswithnectarandpollen.Second,avoidusingpesticidesastheycanharmbees.Instead,trynaturalpest-controlmethods.Finally,spreadtheword!Letmorepeopleknowtheimportanceofbeesandencouragethemtojoininprotectionefforts.ForexamplesolutionPart2.

Howdoyouunderstandtheconnectionbetweenpeople,plants,andanimals?Thinkofsomeexamplesandthensharethemwithapartner.1fA:Weallknowpeopleandnatureareconnected.Butcanyougivemeanexampleofhowtheyareconnected?B:Sure.IvisitedasmalltowninGuangdongonce.Therearemanylargetreesinthetown.Theyarehometomanybirds.Alotoftouristscometoseethetreesandthebirds…behometosb/sth有……栖息；是……的家乡ForexampleA:Weallknowpeopleandnatureareconnected.Butcanyougivemeanexampleofhowtheyareconnected?B:Sure.Inmyhometown,there'sabiglake.Thelakeishometolotsoffish.The

plantsaroundthelakeprovideoxygenandfoodforthefish.Peoplegofishingthere.Also,wegetfreshairfromtheplants.So,people,plants,andanimalsallrelyoneachother.LanguagePoints!1.Atthismomentyourealizepeople,plants,andanimalsareallconnected.在这一刻，你意识到人、植物和动物都是相互关联的。(1)connect/kəˈnekt/v.关联；连接(2)connected/kəˈnektɪd/adj.连接的；相关的(3)beconnectedwith/to与……相连；与……有关联connectAwith/toB把A与B连接起来；使A和B有联系例如：Themanwasconnectedwiththetheft.这个人与这起盗窃案有关。Weshouldconnecttheorywithpractice.我们应该把理论和实践联系起来。(4)connection/kəˈnekʃn/n.联系；连接LanguagePoints!2.Astheyflyfromoneflowertoanother,theytakepollenwiththem.当它们从一朵花飞到另一朵花时，会随身携带花粉。as是连词，引导时间状语从句，表示“当……时；随着”，强调主从句动作同时发生。【拓展】as的其他意思(1)作为（介词）表示“以……身份；当作”，后接名词或代词。例句：Sheworksasateacher.她作为一名教师工作。Itreathimasmybestfriend.我把他当作我最好的朋友。LanguagePoints!(2)因为；由于（连词），引导原因状语从句，相当于because，但语气较弱，常用于口语。例句：Westayedathomeasitwasraining.因为下雨，我们待在家里。Ashewasill,hecouldn’tgotoschool.由于他生病了，不能去上学。(3)尽管；虽然（连词，引导让步状语从句，需倒装）表示“虽然”，但从句需将表语、状语或动词原形提前至句首，主句不变。例句：Youngasheis,heknowsalot.尽管他年轻，却知道很多。Hardastheytried,theyfailed.尽管他们努力了，还是失败了。LanguagePoints!3.Forthisreason,manyscientistsbelievethatbeesarethemostimportantanimalsonthisplanet.因此，许多科学家认为蜜蜂是这个星球上最重要的动物。Thinkaboutwhatyoucandotoprotectoneofthemostamazinganimalsonearth.想想你能做些什么来保护地球上最神奇的动物之一。宾语从句：thatbeesarethemostimportantanimalsonthisplanet宾语从句：whatyoucandotoprotect…注意：宾语从句用陈述句语序，即“主语+谓语+其他”。Exercise-根据句意和汉语提示完成句子1.Beeshelpplantsgrowthrough__________(授粉).2.Antsplayanimportantroleinthe__________(生态系统).3.Weshould__________(保护)animalsontheplanet.4.__________(想象)whattheworldwouldbelikewithoutplants!.5.Beesusehoneycombsto____________(储存)honey.pollinationecosystemprotectImaginestoreWhyareplantsandanimalsimportanttous?Becausetheyprovidefood,oxygenandmaterialsforourdailylife,andalsohelpkeepthebalanceofnature.Weshouldprotectthem!VocabularyinUse

2a-2dSectionB02

Circletheoddones.Thengiveyourreasons.2a1.habit height size weight2.joy happiness fun enjoy3.angry disappointed smart sad4.appear look seem watch5.honey milk juice breadhappiness/ˈhæpinəs/n.幸福；快乐disappoint/ˌdɪsəˈpɔɪnt/v.使失望；使破灭

Addtheendings-ance,-(t)ion,-ness,and-itytoformnouns.Useyourdictionary.2b1.act_________________ 2.good_________________

3.kind_________________ 4.appear_________________

5.real _________________ 6.imagine_________________

7.connect_________________ 8.popular_________________

9.communicate_________________ 10.important_________________actiongoodnesskindnessappearancerealityimaginationconnectionpopularitycommunicationimportance

Completethesentenceswiththecorrectformsofthewordsinthebox.2c1.Ifelt________________whenmyfavouriteflowersdied.2.Aftertherain,somemushrooms________________inthegarden.3.Inmyhometown,peopleoftenusebamboobasketsto________________food.4.Whatdidyouputinyourluggage?It________________aton.5.Ican’t________________mylifewithoutmypets.Theymeanalottome.appeardisappoint

imagine

store

weighdisappointedappearstoreweighsimagine/ˈmʌʃrʊm/n.蘑菇；伞菌ton/tʌn/n.吨

Completethepassagewiththecorrectformsofthewordsinthebox.2dYoumaynotrealizeit,butfrogsplayanimportantroleinour____________ecosystem.Thesmallestfrogsareaboutthesizeofapea,whilelargeronescangrowasbigasahumanhand.Manypeopleknowthatfrogshelpto____________farmsbyeatinginsects.____________,noteveryoneunderstandstheir____________innature.Frogscanliveon____________andinwater.Becauseofthis,theyarepopularsubjectsinstudiesonclimatechangeandtheecosystem.however