Unit8Lesson3Secondarydisasters课件冀教版英语八年级下册

Unit8NaturaldisastersLesson3Secondarydisasters冀教版（2024）八年级下Learningobjectives0LeadinPresentation2PracticeProduction4SummaryAssessment6Homework1357Bytheendofthelesson,Iwillbeableto...123understandsecondarydisastersandexamples;usecompound/derivativewordsaboutdisasters;discusssecondarydisasterprevention.00LearningobjectivesQ:Whatisthemaindisasterinthevideo?Watchandanswer.Leadin01Earthquake.Q:Whatotherterriblethingshappenedaftertheearthquake?Tsunami.Freetalk.Leadin01Earthquake.Tsunami.First:Then:secondarydisastersthemaindisasterAWhat'sasecondarydisaster?Freetalk.Leadin01AWhat'sasecondarydisaster?BHowdowegettheword"secondary"from"second"?Earthquake.Tsunami.First:Then:secondarydisastersthemaindisasterThesedisastersthathappen_______themaindisasterarecalled

___________________.aftersecondarydisasters+aryLet’sreadapassageandwewilllearnsecondarydisasterscarefully.Presentation02Skimandanswer.Disastersareterrible.Sometimes,secondarydisastersareevenmoredangerousbecausetheycreatemoredamages.Secondarydisastersincludelandslides,fires,floods,andsoon.Hereisaseriousexample.OnMarch11,2011,thelargestearthquakeeverrecordedinJapancausedgreatdestruction.Tsunamiwaveshitthecoastalarealessthanhalfanhourlater.ThesewavesdamagedtheFukushimaDaiichinuclearpowerplant.Inthefollowingdays,explosionsoccurredattheplant.Morethan150,000peoplehadtoleavethearea.Lotsofradioactivitygotintotheoceanandcamedownfromtheatmosphere.Theearthquakehighlightedanimportantproblem—disastersoftencauseachainreaction,leadingtomoreproblems.Ifpeopledonotdealwiththemproperly,thiswillleadtogreaterdisasters.Itiseveryone’sresponsibilitytotakeactiontoreducedisastersorsecondarydisasters.Q:Whatisthemainideaofthepassage?

HowearthquakeshappenWhatsecondarydisastersareandwhytheyaredangerousHowtostopnuclearpowerplantexplosions1234Q:Howmanypartsisthepassagedividedinto?Threeparts.Part2Part3secondarydisastersareevenmoredangerousbecausetheycreatemoredamages.Part1Presentation02Skimandmatch.Disastersareterrible.Sometimes,secondarydisastersareevenmoredangerousbecausetheycreatemoredamages.Secondarydisastersincludelandslides,fires,floods,andsoon.Hereisaseriousexample.OnMarch11,2011,thelargestearthquakeeverrecordedinJapancausedgreatdestruction.Tsunamiwaveshitthecoastalarealessthanhalfanhourlater.ThesewavesdamagedtheFukushimaDaiichinuclearpowerplant.Inthefollowingdays,explosionsoccurredattheplant.Morethan150,000peoplehadtoleavethearea.Lotsofradioactivitygotintotheoceanandcamedownfromtheatmosphere.Theearthquakehighlightedanimportantproblem—disastersoftencauseachainreaction,leadingtomoreproblems.Ifpeopledonotdealwiththemproperly,thiswillleadtogreaterdisasters.Itiseveryone’sresponsibilitytotakeactiontoreducedisastersorsecondarydisasters.1234Q:Whatdoeseachparttalkabout?①Theseriousexampleofthe2011Japanearthquake②Thedefinitionandtypesofsecondarydisasters③ThelessonlearnedandourresponsibilityPart1Part2Part3_______.Theyare______________

______________________________.Readthepassagecarefullyandanswerthequestions.Presentation02Readandanswer.Disastersareterrible.Sometimes,secondarydisastersareevenmoredangerousbecausetheycreatemoredamages.Secondarydisastersincludelandslides,fires,floods,andsoon.Hereisaseriousexample.OnMarch11,2011,thelargestearthquakeeverrecordedinJapancausedgreatdestruction.Tsunamiwaveshitthecoastalarealessthanhalfanhourlater.ThesewavesdamagedtheFukushimaDaiichinuclearpowerplant.Inthefollowingdays,explosionsoccurredattheplant.Morethan150,000peoplehadtoleavethearea.Lotsofradioactivitygotintotheoceanandcamedownfromtheatmosphere.Theearthquakehighlightedanimportantproblem—disastersoftencauseachainreaction,leadingtomoreproblems.Ifpeopledonotdealwiththemproperly,thiswillleadtogreaterdisasters.Itiseveryone’sresponsibilitytotakeactiontoreducedisastersorsecondarydisasters.Q:Howmanysecondarydisastersarementionedinthispassage?Whatarethey?Q:WhatdisasterhappenedinJapanin2011?A______________happenedinJapanonMarch11,2011.bigearthquakeFivelandslides,fires,floods,tsunamiandexplosionslandslides,fires,floodstsunamiexplosionsReadthepassagecarefullyandanswerthequestions.Presentation02Readandanswer.Disastersareterrible.Sometimes,secondarydisastersareevenmoredangerousbecausetheycreatemoredamages.Secondarydisastersincludelandslides,fires,floods,andsoon.Hereisaseriousexample.OnMarch11,2011,thelargestearthquakeeverrecordedinJapancausedgreatdestruction.Tsunamiwaveshitthecoastalarealessthanhalfanhourlater.ThesewavesdamagedtheFukushimaDaiichinuclearpowerplant.Inthefollowingdays,explosionsoccurredattheplant.Morethan150,000peoplehadtoleavethearea.Lotsofradioactivitygotintotheoceanandcamedownfromtheatmosphere.Theearthquakehighlightedanimportantproblem—disastersoftencauseachainreaction,leadingtomoreproblems.Ifpeopledonotdealwiththemproperly,thiswillleadtogreaterdisasters.Itiseveryone’sresponsibilitytotakeactiontoreducedisastersorsecondarydisasters.Q:WhathappenedtotheFukushimaDaiichinuclearpowerplant?Q:Whatshouldpeopledotoreducedisasters?Itwasdamagedby_____________,and____________occurredthere.Lotsof___________wasreleased.Peopleshould____________to

____________________________

______________.tsunamiwavesexplosionsradioactivitytakeactionreducedisasterssecondarydisastersReadandorder.ReadthepassageagainandputthesentencesinorderinPart2.A.Radioactivitygotintotheoceanandatmosphere.B.Explosionsoccurredattheplant.C.Theearthquakecausedgreatdestruction.D.Tsunamiwaveshitthecoastalarea.Presentation02Doyouknowhowtheradioactivitybecomes?ABCD3Readthesentencesandpayattentiontothepartsinyellow.Lookandlearn.Presentation02Secondarydisastersincludelandslides,fires,floods,andsoon.（次生灾害包括滑坡、火灾、洪水等。）Theearthquakehighlightedanimportantproblem.（这次地震凸显了一个重要问题。）派生词合成词Q:Whatisthedifferencebetweencompoundwordsandderivatives?Lookandlearn.Presentation02Compoundwordsareformedwhentwoormorewordsarecombined.合成词：由两个或多个单词组合而成的词。Example:land（土地）+slide（滑动）=landslide（滑坡）；earth（大地）+quake（震动）=earthquake（地震）after（之后）+shock（震动）=aftershock（余震）fault（断层）+line（线）=faultline（断层线）Lookandlearn.Presentation02Derivativesarecreatedbyaddingaffixes(prefixesorsuffixes)toexistingwords.派生词：通过在已有单词上添加词缀（前缀或后缀）构成的词。second（第二的）+-ary（形容词后缀）=secondary（次生的/次要的）；harm（伤害）+-ful（形容词后缀）=harmful（有害的）danger（危险）+-ous（形容词后缀）=dangerous（危险的）；disaster（灾难）+-ous（形容词后缀）=disastrous（灾难性的）；destruct（破坏）+-ive（形容词后缀）=destructive（破坏性的）；Example:前缀（Prefixes）：加在单词前面，改变意思un-（不）：happy→unhappy（不开心的）dis-（相反）：appear→disappear（消失）re-（再/重新）：write→rewrite（重写）后缀（Suffixes）：加在单词后面，改变词性-ful（充满…的）：care→careful（小心的）-less（无…的）：care→careless（粗心的）-tion（名词后缀）：act→action（行动）词缀分类&例子Lookandlearn.Presentation02合成词vs派生词对比表Lookandlearn.Presentation02特征合成词（Compound）派生词（Derivative）构成方式单词+单词词根+词缀（前缀/后缀）核心特点两个部分都是独立单词词缀不能单独使用，只能依附词根含义变化两个词的含义组合成新义词根核心含义不变，词缀微调意思/词性例句landslide（land+slide）secondary（second+-ary）Readandfill.ReadthesentencesinPart4andfillintheblanks.Practice03luckyluckilycreativitycreationReadandfill.ReadthesentencesinPart4andfillintheblanks.Practice03firefighterlandslideWorkingroupsof3-4.Imagineyouarenewsreportersmakinga1-minutelivebroadcastaboutanaturaldisasteranditssecondaryeffects.Production04DisasterReporter’sBroadcast.Yourreportmust:Step1:Followtheclearchain:Maindisaster→Secondarydisasters→Impacts

Step2:Includeatleast2compoundwords

Step3:Includeatleast2derivatives

Step4:EndwithashortcalltoactionorsafetytipWorkingroupsof3-4.Imagineyouarenewsreportersmakinga1-minutelivebroadcastaboutanaturaldisasteranditssecondaryeffects.Production04DisasterReporter’sBroadcast.UsefulWordsCompoundwordsearthquakelandslidemudslidewildfireaftershockfloodwaterthunderstormflashflooddeath-tollrescue-teamrainstormcoastlinehometownsandstormDerivativessecondarydangerousharmfuldisastroussurvivorunsaferebuildrecoveryprotectivedestructivenaturalsuddenmedicalhomelesspowerfulUsefulWordsGoodmorning,everyone.Todayweintroduce...First,...attackedthisarea.Thenitcaused...Thesedisastersare...Manypeopleetohelp...Peoplewilltrytheirbestto...Weneedtolearn...That’sall.Thankyou.ShowtimeTalkclearly(内容清晰)Pronunciation(发音标准)Bodylanguage(使用肢体语言)Fluently(流利的)Reasonable(理由合理)Gradeandshare:一、判断下列单词是否为复合词，是打“√”，否打“×” secondary () landslide () explosion () earthquake () toothbrush () responsible ()ThegrammarwehavelearnedSummary05×√×√√×三、写出下列复合词的构成（模仿示例）例：landslide= land+slideearthquake= _________________________________toothbrush= _________________________________chainreaction= _________________________________nuclearpowerplant= _________________________________ThegrammarwehavelearnedSummary05earth+quaketooth+brushchain+reactionnuclear+power+plant三、用括号内单词的复合词形式填空The__________(sun+rise)isabeautifulsightinthemorning.Weusea___