初中英语仁爱科普版九年级上 Unit 2 Topic 1 Section C(共21张PPT)

Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems

.SectionC教学目标（Teachingproject)1.掌握本课的重点词汇和短语:

uncomfortable,unpleasant,sort,environmental,including,godeaf,doharmto/beharmfulto,loseone’shearing/havehearingloss,nobetterthan,causesb.todosth2.初步感知定语从句。3.了解与噪音污染有关的常识。4.能运用所学的阅读方法找出文章主题句，文章标题和细节信息。5.能看懂和听懂简单的英文解释。6.能够理解文章的结构。7.通过学习，加深对环境问题的认知，树立环保意识。Speakoutthenamesofthepollution.airpollutionlightpollutionlitterwaterpollutionsoilpollutionnoisepollutionnoisepollutionNoiseisasort/kindofpollution.Thereareallsorts/kindsofnoises.Theymakeusuncomfortableandunpleasant.n.种类；v.把……分类adj.使人不舒服的adj.令人不快的noisesmadebyLet’swritedownthethingsthatcanmakenoises.pianobuscatwindplanedogloudpopmusicmachinecar主旨大意题的解题方法一、找主题句（topicsentence)快速阅读文首、文尾，或每段的首句和尾句等，搜索主题线索和主题信息。二、找文章的标题(thetitle)快速阅读文章的各段，找出每段的主题句的关键词，综合得出文章的标题。Underlinethetopicsentenceofthepassagein1a.Giveapropertitletothispassage.Trytofindoutthetopicsentencetounderstandthecontentofaparagraph.Read1aandcompletethefollowingtasks.Task1Noiseisalsoakindofpollutionandisharmfultohuman’shealth.NoisePollution细节理解题的解题方法：寻读法：画出题干中的关键词语，然后在文章中找出可能包含所需信息的段落或句子。词义猜测题的解题方法：1.通过定义、释义猜测词义；2.通过同位、并列关系猜测词义；3.通过生活常识猜测词义。Howdoesnoiseharmpeople’shealth?Task2a.Peopleoften__________.b.Peopleoftenfeel____________and__________.c.Peoplemaybecome_____or_____.d.Yourpoint:_____________________________.godeafuncomfortablesickunpleasantdeaf3.Whichphrasehasthesamemeaningas“isharmfulto”?4.Whichsentenceshowsthatmanyteenagers’hearinginAmericaisnotgood?5.WhyisthehearingofmanyyoungAmericansnotgood?Task3Answerthequestions.“doesharmto”.ManyteenagersinAmericacanhearnobetterthan65-year-oldpeopledo.Becausetheyalwayslistentoloudpopmusic.1.produceA.tohurtsomeone2.deafB.atypeorakind3.printC.notbeabletohear4.harmD.togrowormakesomething5.sortE.toputwordsorpicturesontopaperusingamachineTask41bRead1aandmatchthewordswiththeirmeanings.a.Notallpeopleknownoiseisalsoakindofpollution.

_____________know(s)noiseisakindofpollution__________.b.ManyteenagersinAmericacanhearnobetterthan65-year-oldpeopledo.InAmerica,manyteenagers’hearingis_____________65-year-oldpeople’s.Task5Changethefollowingsentencesintotheonesthathavethesamemeanings.Noteveryone/somepeopleaswellasweakasPeoplewhoworkandliveinnoisyconditions

oftengodeaf.在嘈杂的环境中工作和生活的人容易变聋。Difficultsentences定语从句e.g.Beethovenwasdeaf.godeaf变聋e.g.He__________becauseofthetrafficaccident.wentdeafdeafadj.聋的…manyoftheworkerswhoprintnewspapersandbookslosetheirhearing.很多印刷报纸和书籍的工人丧失听力。Difficultsentences定语从句e.g.Look!Themanisprintingsomething.loseone’shearing丧失听力aprinterhearingn.听力，听觉printv.印刷ArticleStructureNoisepollutionNoiseisakindofpollutionandisharmfultohumans’health.Workingandlivinginnoisyconditionscanmakepeoplegodeaf.MakingaloudnoiseinpublicanditsharmHasnoisepollutioncausedyouanyproblems?Ifyes,shareyourfeelingswithyourclassmates.Ithinknoisemakesmenotsleepwellatnight.Noisemakesmefeeluncomfortableandunpleasant.Noisecanmakemebecomeill.LetʹswriteareportaboutnoisepollutionNoisePollution1.Noiseisakindofpollution.2.Whatmakesthenoisepollution.3.Noiseisharmfultopeople’slife.Forexample:Noiseisakindofpollution.Carsandmachinesproducestoomuchnoise.Itmakespeoplefeeluncomfortableandun-pleasant.Italsodoesgreatharmtopeople’shearing.Noiseisveryharmfultohumans’health.Luckily,thegovernmenthastriedmanywaystocontrolnoisepollution.summaryWelearn:1.Findoutthetopicsentencetounderstandthecontentofaparagraph.2.Writeapassageaccordingtothetopicsentences.3.Weshouldprotectourearth.Wecan:1.Somewords:deaf,print,hearing,loss,recently,disturb,sort,uncomfortable,unpleasant,sentence,meaning2.Somephrases:godeaf,loseone’shearing,hearingloss,nobetterthan,doharmto3.Somesentences:However,notallpeopleknownoiseisalsoakindofpollutionisharmfultoh