Unit3TreesandusReadingI课件-沪教版英语七年级下册

牛津广州版七年级下册Whydoweneedtrees?Keyquestion主题范畴：人与自然Unit3TreesandusReadingIGuessinggameReadthesentencesbelow.Canyouguesswhattheyaredescribing?Somearebig,somearesmall.Mostofthemchangecoloursindifferentseasons.Theymakeourschoolbeautifulandcomfortable.Theycanmaketheairfresh.Theyhelpusfightpollution.Trees!Doyouliketrees?Canyounamethetreesbelow?Whatisyourfavouritetree?Freetalk木棉(Kapok)松树(Pine)凤凰木(FlameTree)fruitbranchtrunkrootflowerleafP36

branch

flower

fruit

leaf

root

trunkCanyoufindoutthenamesofeachpartofatree?Lead-inWhatdotreesdoforus?Treesprovideuswith…drink:tea,coffeefruits,nutsfurniture,chopsticks,pencil,paper…rubberabeautifulworldPre-readingWhat’sthetexttypeofthisarticle?aAstory.bAninterview.

(采访)cAnewsreport.dAnexpositorytext.(说明文)IntroductionRead&predictWhoarethesesilentfriends?Trees.Para.1Para.2Para.3Para.4While-readingSkimmingHowtogetthemainideaofeachparagraph?Thefisrtsentence;Thelastsentence;Tosummarizeitaccordingtosomekeywords(wordsrealatedtothetopic,orrepeatedwords)Para.1Para.2Para.3Para.4Treesareeverywhere.Treesareimportantforallthelivingthings.Treesmakeourlivesmoreconvenient.Weshouldprotecttrees.在英文阅读中，找出主题句(TopicSentence)是理解文章大意的重要策略。主题句通常概括了段落或文章的主要内容，常出现在段落的开头或结尾。While-readingSkimmingFromthedeepestforeststoourtownsandcities,treesareallaroundus.Weshareourworldwithtrees.Theyareoursilentfriends,butweoftenoverlookthem.Whatwordsshowtherelationship(关系)betweentreesandhumans?Theword“overlook”inthearticlemostlikelymeans:A.TolookatsomethingcarefullyB.Tofailto(未能做)seeornoticesomethingC.ToseesomethingfromahighplaceD.TotakecareofsomethingWhile-readingReadthefirstpara.ofthearticleInfact,treesareveryimportantforalllivingthingsonEarth.Tobeginwith,forestsareasafeplaceforanimals,insectsandplantstolive.TreesarealsogoodforushumansbecausetheytakeingreenhousegaseslikeCO₂andproduceoxygen.Thismeanstheyhelpcreateacleanenvironmentforeveryoneonthisplanet.WhyaretreesveryimportantforalllivingthingsonEarth?Foranimals,insectsandplants:Provideasafeplacetolive.Forhumans:

Takeingreenhousegasesandproduceoxygen.While-readingReadthesecondpara.ofthearticleTreesmakeourlivesmoreconvenient.Manyofthethingsaroundus,suchaspaperandpencils,comefromtrees.Justlookaroundyourroom——alotofthefurnitureismadeofwood.Treesalsoprovideuswithdeliciousfruitandwonderfuldrinks.Forexample,wecanmaketeafromtheleavesoftheteatree.Whatdotreesprovideforus?While-readingReadthethirdpara.ofthearticlepaperandpencilsfurnituredeliciousfruitandwonderfuldrinksTreesdosomuchforus.Wecan'timagineaworldwithoutthem.However,humansarenottreatingtreesinakindway.Wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,andthisharmstrees.Allthesethingsareabigproblem.Weneedtodomoretoprotecttreesandsaveourplanet.Howarewetreatingtreesnow?cuttingdown

forestsallaroundtheworldpollutingthewaterandtheairWhile-readingReadthefourthpara.ofthearticleWhatdoes“this”referto?What’sthewriter’sattitudetowardstrees?What’sthewriter’sattitudetowardshumans’behavior?Shareyourunderstandingandfindsupportingdetailsinthearticle.While-readingWhydoestheauthorcalltreesoursilentfriends?Thetitleusesapersonification(拟人),callingtrees“quietfriends”.Becausetheyhelpussilently(oxygen,cleanair,homesforanimals)butcan’tspeakwhenharmed.Itremindsustoprotectthem,eventhoughtheydon’tmakenoise.Talkaboutyourideasofthequestionsbelow.Post-reading(1)Whatisthepurposeofthearticle?Whatdoesthewriterwanttotellus?(2)Howdoyouunderstandthesentence“Wecan’timagineaworldwithoutthem(line17)”?Discussthequestionsbelow.Thisarticleshowsustheimportanceoftreesinourdailylives.Andthewriterwantstotellustoprotectthem.Treesareimportanttousandtheydosomuchforus.Wecan’tlivewithoutthem.Post-Reading

P38Let’swatchavideoandfindoutwhatwillhappenifwelivewithouttrees.Afteryouread—Whatwouldatreesay?Imagineyouareatree.Whatwouldyouliketotellhumanbeings?Workingroupsandwriteaparagraph.(1)Youcanbeginwith“Hello,Iamatree.”(2)Explainwhytreesareimportantandhowhumansareharmingtrees.Thenaskhumanstoprotecttrees.Useatleasteightsentences.LanguageSupport:WhatWouldaTreeSay?1.OpeningHello,Iamatree.Iamyourfriend,atree.2.WhyI'mImportantImaketheairclean.Igivehomestobirds.Imakethecitybeautiful.3.MyProblem&RequestPleasedon'tcutmedown.Pleaseplantmoretrees.Protectme,andIwillhelpyou.4.LinkingWordsFirst,...Also,...But,...Please,...SampleParagraphHello,Iamatree.Iamyoursilentfriend.First,Iamveryimportanttoyou.ItakeinCO₂andproduceoxygen.Ihelpmaketheairclean.Iamalsoasafehomeformanyanimals.Youcanmakepaperandfurniturefrommywood.Butyouarenotkindtome.Youcutdownmanyforestsandpollutethewater.Thishurtsmealot.Pleasestopcuttingdowntrees.Pleaseplantmoretreesandprotectus.WecanmaketheEarthabetterplacetogether.WhatWouldaTreeSay?事实(fact)是关于世界的真实信息。观点(opinion)是个人的感受和信念。Readthearticleagainandtrytofindexamplesoffactsandopinionsinit.P38FactsOpinions...theytakeingreenhousegaseslikeCO2andproduceoxyge