Unit9Lesson27课件北师大版英语九年级全一册

Unit9Lesson271.Whataretreesusedfor?Warm-up2.Whyisitimportanttoprotecttrees?Treesgiveus…Oxygen

andfoodLotsofproducts(paper,wood,etc.)ShelterAhomeforwildlifeShadeandbeauty……Guess:Whatwillyoureadinthispassage?TreeHeroesTreeHeroesReadthewholepassageandcheckyourprediction.Whydidthewriterwritethem?TreeHeroesReadthewholepassageandcheckyourprediction.ReadParagraph1andanswerthefollowingquestions：1.Whatarethechangesaftermanyforestshavebeencutdown?2.Whatproblemsdoesitcause?Itaffectstheclimate,causeanimalstomoveordie,andcausedesertstoexpand.Readagainandchoose1.WhatdoesZouLianyingthinkofplantingtrees?A.proudB.difficultC.simpleD.meaningful2.WhatdoesWeiGuiyingthinkofplantingtrees?A.proudB.difficultC.simpleD.meaningfulShebelievestheforestsheisplantingwillbeagifttofuturegenerationShesaysproudlythatsheisnotamillionairebutshehasmillionsoftrees3.ThewritermayagreethatA.ZouwillgiveherforesttoherchildrenasagiftB.plantingtreesiseasyforWeibecauseshehasateamofhelpersC.theybothliveasimplelifeD.theywillsellthetreestopaydebts(债务)Ithasn’tbeeneasyforhershestilllivessimplyshewon’tcutdownevenonetree.Howtoexpressone’sopinion?Shebelievestheforest···Shesaysproudlythatsheis···Ithasn’tbeeneasyforhershestilllivessimply.opinionverbsopinionadjectivesWhatelse?TalkaboutyouropinionsWhatdoyouthinkoftheirborrowingmoneytoplanttrees?Let’sdosomeExercise!Predict:Willthepassagetalkaboutthefollowingmatters?

1.Problemscausedbycuttingtrees.2.Workoftreesheroesaroundtheworld3.Treeplantingaroundtheworld.4.Chinaneedtoplantmoretrees.5.Everyoneshouldlearnfromtreeheroes.SkimandCheck1.Problemscausedbycuttingtrees.2.Workoftreesheroesaroundtheworld.3.Treeplantingaroundtheworld.4.Chinaneedtoplantmoretrees.√inChina5.Everyoneshouldlearnfromtreeheroes.√√SkimandMatchProblemscausedbycuttingtrees.WorkoftreesheroesinChina.Chinaneedtoplantmoretrees.weshouldlearnfromtreeheroes.Para.1Para.2Para.3&4Para.5PartIPartIIPartIIILandchangesEnvironmentalchanges1.Climateis_______________.2.Animals________________.3.Deserts____________.

Whenlandgreatlychanges,whatchangesdoesourenvironmenthave?affectedmoveordieexpandProblemsareveryserious!PartII—1.DothesechangestakeplaceinChina?Howdoyouknow?

Whoaresomeofthepeoplebehindthesehugenumbers?①Chinaneedstoplantmoretrees.2.WhatshouldChinadonow?

3.HowisChina’stree-plantingworkgoingonnow?4.WhydoesChinaplantmoretreesthantherestoftheworld?

SummaryHowtodeterminethemainideaofapassage?2.Thebeginningofthepassage3.Theendingofthepassage4.Thefirstorthelastsentenceofeachpassage1.Thetitleofthepassage1.Whatproblemsdoesitcauseaftermanyforestshavebeencutdown?2.Whatdoweneedtodotosolvetheproblems?Readthefirsttwoparagraphsandanswerthefollowingquestions1.Itaffectstheclimate,causeanimalstomoveordie,andcausedesertstoexpand.2.Weneedtoplanttrees.1.Whoarethey?

ZouLanying,WeiGuiyingandateamofhelpers.2.Whydowecallthemheroes?

Becausethetreesareimportanta