九年级英语全册 Unit 13 We’re trying to save the earth（第2课时）课件 （新版）人教新目标版.ppt

unit13we retryingtosavetheearth sectiona3a 4c 九年级英语新目标 人 haveyoueverseenashark whathashappenedtosharks thegeneralideaofthearticleisabout a waterpollutionb environmentalprotectiongroupsc theshark readforthegeneralideaof3a c southernchina 70million over90percent wildaidandthewwf readthepassageaboutsharksandcompletethefactsheetbelow readthepassageagainandfillintheblankswiththewordsinthebox 1 manypeopledonotrealizetheyarekillingawholeshark theyenjoyabowlofsharkfinsoup 2 sharksareatthetopofthefoodchain iftheirnumbersdrop theocean secosystemwillbeindanger 3 manythinkthatsharksaretoostrongtobeendangered theyarewrong 4 therearenoscientificstudiestosupportthis alotofpeoplebelievethatsharkfinsaregoodforhealth 5 sharksmaydisappearoneday wedonotdosomethingtostopthesaleofsharkfins when so but although if 教材解读 1 iftheirnumbersdroptoolow itwillbringdangertoalloceanlife if引导的是条件状语从句 谓语动词使用一般现在时表示将来 主句使用一般将来时 ifitdoesn traintomorrow wewillgofishing 如果明天不下雨 我们就去钓鱼 2 sofar noscientificstudieshaveshownthatsharkfinsaregoodforhealth sowhyeatthem sofar的意思是 到目前为止 主句时态使用现在完成时 sofar wehavelearnedenglishforsixyears 到目前为止 我们已经学习英语六年了 句中that引导的是宾语从句 作动词shown的宾语 begoodfor的意思是 对 有好处 studyshowsthatdoingexerciseeverydayisgoodforourhealth 研究显示 每天锻炼对我们的健康有好处 retellthestoryaccordingtothefollowingmindmap grammarfocus fillintheblankswiththecorrectformsoftheverbs joe youever take partinanenvironmentalproject eric yes ihave i help withaclean updaylastyear itwas consider thebiggestclean upprojectthiscity ever have joe howmanypeople take part eric i think morethan1 000people come tohelpout joe that sfantastic iguesseveryoneinthiscityis try toimprovetheenvironment eric yes wecan taffordto wait anylongertotakeaction have taken helped considered had had took think came trying wait fillintheblankswiththeappropriatemodalverbsfromthebox people thinkthatbigthings bedonetosavetheearth manyforgetthatsavingtheearthbeginswithsmallthings forexample you save may might must can canwouldcouldhavetoshouldmustmay might electricitybyturningoffthelightswhenyouleavearoom you alsousereusablebagsinsteadofplasticbags ithinkit sagreatideathatyounow payforplasticbagsinsomestores andinsteadofdrivingtoschoolorwork you rideyourbikeorwalk ifit sfar you takethebus allthesesmallthings addupandbecomebigthingsthat improvetheenvironment let stakeactionnow could haveto can should can could could would can canwouldcouldhavetoshouldmustmay might 教材解读 1 yes wecan taffordtowaitanylongertotakeaction afford意为 承担得起 后果 买得起 affordsth 表示 承受得起某物 affordtodosth 表示 有能力做 负担得起 idon thaveenoughmoney ican taffordthenewhouse 我没有足够的钱 我买不起新房子 2 it sdifficultforparentswithyoungchildrentousepublictransportation 本句采用了itis adj for ofsb todosth 结构 it作形式主语 动词不定式作句子的真实主语 注意 当形容词修饰动词不定式的内容时 使用介词for 当形容词修饰sb 时 使用介词of it sveryimportantforustostudyhard 对我们来说努力学习非常重要 it skindofyoutohelpmewithmyenglish 你太好了 帮助我学习英语 1 don tforgettothelightswhenleavingtheroom 2 ridingabikeourhealth 3 wehavelearnedthirteenunits 4 howmuchdidyouyourdictionaryyesterday 5 haveyoueveranenvironmentalproject 用方框中所给词组的适当形式填空 turnoff takepartin payfor sofar begoodfor turnoff isgoodfor sofar payfor takenpartin 根据汉语意思完成句子1 我能买得起这辆汽车 icanthecar 2 他的哥哥花了20美元买了新鞋 hisbrother20dollarshisnewshoes 3 如果它们的数量降到太低 它将会给全部海洋生命带来危险 iftheirnumberstoolow itdangertoalloceanlife 4 到目前 没有科学研究显示鱼翅对健康有好处 所以为什么吃它们呢 noscientificstudiesthatsharkfinshealth sowhyeatthem