Unit 1 Section A 2a-2d 课件2026-2027学年人教版英语九年级上册

UnitOneTheChangingWorldSecA2a-2dWhatbringsaboutchanges?ReviewDiscussthechangesin1c.Howdoyouthinktheyhappened?1dBetterroadsandpublictransport（Thegovernmentbuiltnewroads.）Improvedpublicservices（Newhospitalsandsupermarketswerebuiltinthetown.）

Hardworkoflocalpeople（Villagersworkedtogethertobuildroads,planttrees,andimprovetheirlivingconditions.）Environmentalprotectionandgreenprojects（Peopleplantedmanytreesonthehills.）How?GreatchangesnhavetakenplaceinLiRui’shometownovertheyears.Therearefourmianreasonsfortheseamazinginprovements.First,the_______built_________________,sothe____________havebetterroadsandpublictransport.Second,thegovernmentimproved_____________.Now,________and_______werebuiltinthetown,makingpeople’sdailylivesmuchmoreconvenient.Third,localpeoplemadegreatprogressthroughtheir____________.Fourth,peoplecarriedout(执行）____________and___________.Thankstoalltheseefforts,thehomentownhasturnedintoamodernandbeautifulplace.OralExpressionWhatgreatchangeshavetakenplace?Ittookhalfadaytoreachthetown.Withthenewroads,ittakesonlyanhour.Goingtoschoolbybustook40minutesoverroughroadsGoingtoschooltakesonly15minutesTheyusedtototraveltoseeadoctor.Thetownhasbuiltanewhospital.Theydidn'thaveanygoodplacesforshopping.Theynowhaveasupermarketdownthestreet.Thehillswerecoveredwithsand.Theyarenowcoveredwithbeautifultrees.Warmup中国的变化Pre-listeningWhilewehaveseensuchamazingchangesinourhometown,achievingthemwasnevereasy.Whatchallengesanddifficultiesdoyouthinkpeoplemighthavefacedduringthisprocess?Rankthefollowingproblemsfrom1to4,with1beingtheworst.Giveyourreasons.2asandstormsdifficultenvironmentfarmlandshortagelackoftechnologydamagetheenvironmentmakesfarminganddailylifeveryhard.can’tgrowenoughfood.isserious,butpeoplecanimproveitovertime.Ithinktheworstoneis...because...2bListentotheconversationbetweenGeorge'sfatherandLiRui'sgrandfather.Ticktheproblemsmentionedin2a.While-listeningPastThereusedtobe_________allthetime,andthe______

weregettingsmallerandsmaller.Localsworkedby_______.ActionLocalsfoundabush.Ithad_____rootsthatcould_____thesoiltogether.Theybeganplantingitinsandy______,withthegovernmentsupport.Theyhad__________tohelp.PresentThecornfieldsare______.Theyhaveplantedmanybushesand______sincethen.Thereare______sandstormsnowandtheenvironmentisgetting_____.Ithasimprovedlocallives.sandstormsfieldslongareashugehandholdmachinesfewerListenagainandfillinthetable.Howhastheenvironmentaffected

locallives?（一空一词）2ctreesbetterTerribleconditionsHardwork&greenprojectsGreatimprovements&goodresultBob:I’mamazedbyhowgreenyourhometownhasbecome!Grandpa:Haveyouseenthecornfieldsoutsideofthetownyet?Bob:Yeah!They’rehuge!Grandpa:Thereusedtobesandstormsallthetime,andthefieldsweregettingsmallerandsmaller.Then,afteronebigsandstorm,wedecidedtodosomething.Bob:Whatdidyoudo?

ListenandrepeatGrandpa:Wefoundasmallbush.Ithadlongrootsthatcouldholdthesoiltogether.Webeganplantingitinsandyareas.Thegovernmentprovidedsupporttoo.Bob:Wasn’titdifficulttoplantsomanybushes?Grandpa:Yes,itwas.Atthebeginning,weworkedbyhand.Later,wehadmachinestohelp.Wehaveplantedmanybushesandtreessincethen.Therearefewersandstormsnowandtheenvironmentisgettingbetter.Ithasalsoimprovedourlives.Everyonehasbecomericherandhappier.Post-listeningDiscusshowtheproblemsin2bweresolved.2dsandstormsdifficultenvironmentfarmlandshortagelackoftechnologyA:Theareausedtobecoveredwithsand.B:Whatdidtheydotosolvethisproblem?A:Theyplantedbushesandtrees.Thelandhasbecome...Discusshowtheproblemsin2bweresolved.2dA:Theareausedtobecoveredwithsand.B:Whatdidtheydotosolvethisproblem?A:Theyplantedbushesandtrees.Thelandhasbecome________.B:Didtheygetanysupport?A:___________________________________________________.___________________________________________________B:Howistheenvionmentnow?A:_______________________________________________________________________________________________B:That’sgreat!Sotheirhardworkreallypaidoff.A:Exactly,andlocalpeople’sliveshaveimprovedalottoo.Yes,thegovernmetsgavethemsupportandtheyalsousedmachinestohelp.Therearefewersandstorms,andthecornfieldsarehuge.Theenvironmentisgettingmuchbetter.greenerFurtherThinking•Whydidmanyyoungpeopleleavetheirhometowninthepast?Andwhydotheycomebacknow?•Whatcanwelearnfromthegreatchangesofthehometown?•Whatcanwedotokeeptheenvironmentbeautiful?Inthepast,youngpeopleleftforcitiestofindjobs.Nowhometownshavedevelopedalotwithmorejobsandbetterlives,sotheycomebacktostaywithfamilies.Ourcountryisdevelopingrapidly.Hardworkmakesourlifebetterandbringsmorechancesforyoungpeople.Wecanplanttrees,stoplitteringandsavewater.Weshouldalsoencourageotherstoliveagreenlife.Greatchangescomefromperseverance.Thesedevotedpeoplehaveturneddesertsintogreenlands.Weshouldcherishourbeautifulhomeandkeepstrivingahead.LanguagepointsI’mamazedbyhowgreenyourhometownhasbecome!beamazedbysth.为固定短语，意为“对……感到惊讶/惊叹”。amazed是形容词，主语通常为人，描述人的感受。例句：我对我们城市的巨大变化感到惊叹。Iamamazedbythegreatchangesinourcity.LanguagepointsThereusedtobesandstormsallthetime,andthefieldsweregettingsmallerandsmaller.usedtodosth./Thereusedtobe...表示过去常常/过去曾经存在，暗指现在情况已经发生改变。后接动词原形，只用于描述过去。例句：我家附近曾经有一条小河。Thereusedtobeasmallrivernearmyhome.LanguagepointsThereusedtobesandstormsallthetime,andthefieldsweregettingsmallerandsmaller.

比较级+and+同一比较级，意为“越来越……”，用来描述人或事物持续发生变化。单音节形容词直接变化，如smallerandsmaller（越来越小）。例句：这些树长得越来越高了。Thetreesaregrowingtallerandtaller.LanguagepointsIthadlongrootsthatcouldholdthesoiltogether.

本句中thatcouldholdthesoiltogether是定语从句，关系代词that指代前文的roots（物），在从句中作主语，用来修饰前面的名词。例句：我喜欢有关自然的书籍。Ilikethebooksthatareaboutnature.LanguagepointsWasn’titdifficulttoplantsomanybushes?Itis/was+形容词+todosth.（此处为否定疑问句形式），it作形式主语，真正的主语是后面的动词不定式todo，表示“做某事是……的”。例句：学好英语很容易。ItiseasytolearnEnglishwell.LanguagepointsWehaveplantedmanybushesandtreessincethen.sincethen意为“从那以后”，是现在完成时的标志性时间状语。现在完成时结构：主语+have/has+动词过去分词，强调动作从过去开始，持续到现在。例句：从那以后，他就一直住在这里。Hehaslivedheresincethen.LanguagepointsExercise1234—I______thebeautifulsceneryofmyhometown.A.amazebyB.amamazedbyC.amamazingby12342.There______abiglakeinthisvillagemanyyearsago.A.usedtobeB.usedtohaveC.wasusedtolive12343.Thewindisblowingstrongly,andthesandonthegroundisbecoming______.A.moresmallB.smallerandsmallerC.smallandsmall12344.Thisisthetree______canstopthesandfrommoving.A.who

B.whatC.that12345.Wehaveplantedlotsoftrees______.Nowtheairisfresh.A.justnowB.sincethenC.yesterday用括号内动词的正确形式填空，完成句子。02We_____________(plant)manytreessincethen.Peopleareamazed_________(see)thegreatchangeshere.Theriverisgetting__________(clean)andcleaner.There______(use)tobelotsofsandstormshere.Thisisthebush_________(hav