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1、UnitTwo(BookⅢ)SectionAIronandtheEffectsofExerciseObjects:Studentswillbeableto:nlearnaboutironandtheeffectsbroughtaboutbyexercisenunderstandthemainideaandstructureofSectionA;nlearntowritebydevelopingaparagraphwithcause-and-effectpatternnmasterthekeylanguagepointsandgrammaticalstructuresinthetext
2、;nconductaseriesofreading,listening,speakingandwritingactivitiesrelatedtothethemeoftheunitFocus:■Understandingandusingthekeywords,phrases&expressions,patternsofSectionA;■Understandingthemainideaandstructureofthetext;■Masteringthedevicefordevelopingaparagraphbycause-and-effectpatternDifficulties
3、:■Understandingthestructureofthetextandthewaytodevelopit;■Writingbydevelopingthetextorparagraphwithcause-and-effectpatternTimeallotment:■1st-2ndperiod:Lead-in&globalreading(skimming&scanning)■3rd-4thperiod:Textanalysis(keylanguagepoints&structure)■5th-6thperiod:Oralpracticeandwritingtasks■7thpe
4、riod:Checkingonstudents’learningtasks(exercisesinSectionA&readingactivitiesofSectionB)Teachingprocedure:Step1Lead-in(discussion)Studentsworkinpairsorsmallgroupanddiscussthefollowingtwoquestions:1.Howmuchdoyouaboutiron?(Howimportantisittothehumanbody?Whoneedsthemostironeachday?Howcanwegetiron?et
5、c.)Reference:Ironisamineralthathelpstobuildredbloodcells,muscleproteins,andhealthybones.Mostimportantly,ironhelpsthebloodcellstocarrytheoxygenitneedsforenergy.Itisvitalforgoodhealthandforourmentalandphysicalwellbeing.Everyoneneedsirontogrowandstayhealthy.Therearetwotypesofiron.Oneisheme(亚铁血红素),
6、whichiseasilyabsorbedbythebody;andtheotherisnon-heme,whichisnotaswellabsorbed.Hemeironisfoundinallmeat,fishandpoultrywhilenon-hemeironcanbefoundinfoodsuchasnuts,beans,cerealsandeggs.Women19－50yearsoldneedmoreironthananyotheragegroup.Womenneedthemostironbecausetheylosevaryingamountsduringthemens
7、truation(月经期).Bloodlossofanykindandnoteatingmeat,fishorpoultrymayleadtoirondeficiency.Symptomsofirondeficiencymayinclude:lookingpale,feelingtired,havingtroubleconcentrating,feelingoutofbreath,nothavingenoughenergy,andfeelingirrita
