冀教八下英语Unit 8《Lesson 3》课件

Lesson3Unit8Naturaldisasters1Readthequestionsandgiveyouranswers.AWhat’sasecondarydisaster?Giveanexample.BHowdowegettheword“secondary”from“second”?Asecondarydisasterhappensbecauseofanotherdisaster.Forexample,abigearthquakecancauseatsunami(asecondarydisaster).（答案不唯一）Weadd“-ary”totheendof“second”.2Readthepassageandputthesentencesinthecorrectorder.Disastersareterrible.Sometimes,secondarydisastersareevenmoredangerousbecausetheycreatemorerisks.Secondarydisastersincludelandslides,fires,floods,andsoon.Hereisaseriousexample.OnMarch11,2011,thelargestearthquakeeverrecordedinJapancausedgreatdestruction.Tsunamiwaveshitthecoastalarealessthanhalfanhourlater.TheyalsodestroyedtheFukushimaDaiichinuclearpowerplant.Inthefollowingdays,explosionsrockedtheplant.Morethan150,000peoplehadtoleavethearea.Lotsofradioactivitygotintotheoceanandcamedownfromtheatmosphere.过去分词作后置定语，与earthquake在逻辑上构成被动关系。half意为“一半的”，作形容词。halfan/a+名词，意为“半个……”。halfanhour半个小时；halfaday半天；halfanapple半个苹果派生词，由前缀radio-（放射的）和activity（活动）构成。InAugust,2023,theJapanesegovernmentbegantoreleasetheradioactivewaterfromtheFukushimaplantintotheocean.Thewatercouldhaveadeepimpactonsealifeandtheenvironment.Peoplelivingincoastalareasaroundtheworldareworried.Theradioactivewaterfromtheplantisstillconsideredharmfultoday.对……有很深的影响现在分词短语作后置定语，与people在逻辑上构成主动关系。Theearthquakehighlightedanimportantproblem—disastersoftencauseachainreactionofproblems.Ifpeopledonotdealwiththemproperly,itwillleadtogreaterdisasters.Itiseveryone’sresponsibilitytotakeactiontoreducedisastersorsecondarydisasters.=dowith处理；应付导致；通往长难句分析：这是一个主系表结构的简单句。It是形式主语；is是系动词；everyone’sresponsibility是表语。totakeactiontoreducedisastersorsecondarydisasters动词不定式短语是真正的主语，toreducedisastersorsecondarydisasters是另一个动词不定式短语，作目的状语。ARadioactivitygotintotheoceanandatmosphere.BExplosionsrockedtheplant.CThelargestearthquakeinJapancausedseriousdestruction.DTsunamiwaveshitthecoastalarea.C;D;B;A;思考：Whatisonethingpeoplecandotohelppreventproblemsafterabigdisaster?Peoplecanprepareanemergencykitathomebeforeadisasterhappens.Thiskitshouldhavewater,food,aflashlight,andmedicine.Havingthiskitreadymeanspeoplehavesuppliesandthedisasterwillcauselesspanic.（答案不唯一）3Readthesentencesandpayattentiontothepartsinyellow.·Secondarydisastersincludelandslides,fires,floods,andsoon.·Theearthquake

highlightedanimportantproblem.Compoundwordsareformedwhentwoormorewordsarecombined.Forexample,land+slide=landslide,earth+quake=earthquake.Derivedwordsarecreatedbyaddingaffixes(prefixesorsuffixes)toexistingwords.Forexample,second+-ary=secondary,harm+ful=harmful.ThencirclemorecompoundwordsinActivity2.radioactivity;radioactive4Readthesentencesandfillintheblanks.AThesecondbookintheseriesservedasasecondarysourceofinformationformyresearchproject.(second)BIfeelvery_________tohaveescapedtheearthquake,and_________,allofmyfamilymembersweresafe,too.(luck)CTheirrichimaginationand_________haveinspiredthe_________

ofnewproducts.(create)luckyluckilycreativitycreationDJimmylikestousethattoothbrushwithcutecartoonstobrushhisteeth.EThe_________

bravelyfightsagainstthefiretoprotectthepeople.FTheland,includingrocksandsoil,slidesdownfromthemountainandformsa_________.firefighterlandslide1secondary/'sekəndri/adj.次生的（教材P104）·Earthquakescancausesecondarydisasterslikelandslides.地震可能引发滑坡之类的次生灾害。·Thefirestartedasasecondaryeffectofthegasexplosion.这场火灾是煤气爆炸的次生影响。探究一核心单词secondary形容词，意为“次生的”常用搭配：secondaryeffects次生影响secondarydisasters次生灾害（如地震后的洪水、火灾）相关词汇：second第二2destroy/dɪ'strɔɪ/v.破坏；消灭（教材P104）·Theflooddestroyedallthecropsinthefield.洪水摧毁了田里所有的庄稼。·Afiredestroyedtheoldlibrarylastnight.昨晚一场大火烧毁了旧图书馆。destroy破坏（无法修复）；damage损坏（可修复）相关词汇：destructionn.破坏destructiveadj.破坏性的1lessthan少于（教材P104）·Theprojectwilltakelessthanaweektofinish.完成这个项目只需不到一周的时间。·Therearelessthan20studentsintheclassroom.教室里的学生少于20人。lessthan意为“少于”，后接具体数字、时间、数量等，强调“未达到某一数量”，其反义短语为morethan,意思是“超过”，相当于over。探究二核心短语2dealwith处理（教材P104）·Theteacherhelpedmedealwiththedifficultmathproblem.老师帮我解决了这道数学难题。