Unit 1 The Changing World Section A 2a-2d 课件（内嵌视频）2026-2027学年人教版英语九年级上册

年

级：九年级学科：

英语（人教版）Unit1TheChangingWorldSectionA2a-2dLet’ssee.sandn./sænd/sandstormn./ˈsændstɔːm/soiln./sɔɪl/bushn./ˈbʊʃ/farmlandn./ˈfɑːmlænd/Saihanba塞罕坝（图片由AI生成）Let’sact.Q1:Whatwastheprobleminthepast?Q2:Whatdidpeopledotosolvetheproblems?Q3:WhatisSaihanbalikeatpresent?Asareporter,youmaywanttoknow:（图片由AI生成）ActionYourtask:investigatewhathappenedhereandgiveanewsreportaboutthischange.sandstormswatershortagefarmlandshortagelackoftechnologyn./ˈʃɔːtɪdʒ/n./læk/Let’sguess.（图片由AI生成）poorairqualitysoilerosionn./ɪˈrəʊʒn/水土流失Let’slisten.sandstormswatershortagefarmlandshortagelackoftechnologyQ1:Whatwastheprobleminthepast?✅✅✅sandstormsfieldshandpoorairqualitysoilerosionLet’slisten.PastActionPresent●Thereusedtobesandstormsallthetime.●Localsfoundabush.●Ithad___________thatcould__________together.●Thecornfieldsare_______.●Theyhaveplantedmany______and________sincethen.●Thereare______sandstormsnowandthe__________isgetting________.●Ithasimprovedlocallives.●Thefieldsweregettingsmallerandsmaller.●Theybeganplantingitin_________.●Localsworkedbyhand.●Theyhad_________tohelp.Q2:Whatdidpeopledotosolvetheproblems?Q3:WhatisSaihanbalikeatpresent?sandstormsfarmlandshortagelackoftechnologylongrootsholdthesoilsandyareasmachineshugebushestreesfewerenvironmentbetterLet’sfind.●Thereusedtobesandstormsallthetime.●Localsworkedbyhand.●Theyhaveplantedmanybushesandtreessincethen.●Ithasimprovedlocallives.Tip:Simplepasttenseforwhatwas

PresentperfecttenseforwhathaschangedSimplepasttensePresentperfecttenseLet’swatch.InformationPart□Yucunattracts1milliontourists□hugecornfields□beautifulmountainsandwater□Past□Action□Present□villagerskeptmining□environmentdeteriorated□soilerosion□Past

□Action□Present□plantedbushes□closedthemines□restoredtheecology□Past□Action□Present□incomeincreased□achieveddevelopment□fewersandstorms□Past□Action□PresentTicktheinformationyouhear.Thenchoosethepartofstructure.（视频来自于网站

）✓✓✓✓✓✓✓✓✓✓✓✓Let’sfind.

ThisisYuVillage,locatedinAnjiCounty,ineastChina'sZhejiangProvince.AsoneofChina'sbeautifulvillages,withlargemountainsandclearwater,Yucunattractsnearly1milliontouristseveryyear.

Butcanyouimagineseveraldecadesago,Yucunwaslikethis？Atthattime,toearnmoney,thevillagerskeptminingtherichmineralresources.Butwiththeconstructionofanumberofcementplants,thenaturalenvironment,includingtheairquality,deterioratedseverely.

Sothevillagersbecamedeterminedtoclosedowntheminesandcementplants,andtorestoretheruralecologicalenvironmentbyprotectingthemountainsandwater.

Since2005,followingtheideathatlucidwatersandlushmountainsareinvaluableassets,Yucunhasbeenexploringnewmodesofgreendevelopment.Thevillagershavedevelopedagritourism.Oneofthepreviousmineswastransformedintoarelicspark.From2005to2021,thepercapitanetincomeincreasedfrom7,000to61,000yuan.

Today,Yucunhasachievedbotheconomicdevelopmentandenvironmentalprotection,becominganepitomeofChina'ssustainableruraldevelopment.Present(result)Present/HookPastActionLet’ssummarize.④Present（result）—Showtheresults.Thisis________,locatedin________.Butcanyouimagineseveraldecadesago,...?Atthattime,_______.Sothevillagersbecamedeterminedto________.Today,________hasachieved________.①Present(hook)

—Startwithwhatitislikenowtogetattention.②Past—Explainwhattheproblemwas.③Action—Explainwhatpeopledid.Asoneof________,_____attracts_______Let’sreport.

Thisis________,locatedin________.Asoneof________,_____attracts_______.

Butcanyouimagineseveraldecadesago,________?Atthattime,______.

Sothevillagersbecamedeterminedto_______.

Today,________hasachieved______.PastActionPresent●Thereusedtobesandstormsallthetime.●Localsfoundabush.●Ithadlongrootsthatcouldholdthesoiltogether.●Thecornfieldsarehuge.●Theyhaveplantedmanybushesandtreessincethen.●Therearefewersandstormsnowandtheenvironmentisgettingbetter.●Ithasimprovedlocallives.●Thefieldsweregettingsmallerandsmaller.●Theybeganplantingitinsandyareas.●Localsworkedbyhand.●Theyhadmachinestohelp.becamedeterminedto

决心做某事closedown

关闭/停止ecologicalenvironment

生态环境wastransformedinto

改造成……hasachieved

取得了……成就becominganepitomeof

是……的典范sustainable

可持续的increasedfrom...to... 从……增长到……invaluableassets

无价之宝UsefulExpressionsLet’sread.

ThisisSaihanba,locatedinHebeiProvince.AsoneofChina'smostsuccessfulecologicalprojects,itattractsthousandsofvisitorseveryyear.

Butcanyouimagineseveraldecadesago?Atthattime,theenvironmenthaddeterioratedseverely.Thereusedtobefrequentsandstorms,andthefarmlandwasshrinking.Thelocalsworkedbyhand,withnomachines.

Sothevillagersdeterminedtosolvetheproblems.Theyplantedbusheswithlongrootstoholdthesoiland,withgovernmentsupport,theyplantedmillionsoftrees.

Today,Saihanbahasachievedbothecologicalrestorationandeconomicimprovement.Theforestcoveragehasincreasedfrom12%to80%,andlocalliveshavebecomemuchbetter.Let’sexplore.Thebuilders—peoplew