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1、Unit4Lesson12HealthyBonesEverytimewewalk, sitdownorholdabook,weareusingourbones.Bonesareimportantbecausetheysupportourbodiesandhelpusmovefreely.Althoughthey areverylight,bonesarestrongenoughtosupportourweight.Paragraph11.Whatareboneslike?Bonesarehardontheoutside,buttheya
2、resoftontheinside.Thesoftpartofthebonemakesourblood.Bloodcarriesnutrientsthroughourbody.Italsohelpsmovewastematerialsawaysoourbodycanstayhealthy.Paragraph21.Whatareboneslike?Everytimewewalk,sitdownorholdabook,weareusingourbones.Bonesareimportantbecausetheysupportourbodie
3、sandhelpusmovefreely.Althoughtheyareverylight,bonesarestrongenoughtosupportourweight.Paragraph12.Whyarebonesimportant?Bonesarehardontheoutside,buttheyaresoftontheinside.Thesoftpartofthebonemakesourblood.Bloodcarriesnutrientsthroughourbody.Italsohelpsmovewastematerialsawa
4、ysoourbodycanstayhealthy.Paragraph22.Whyarebonesimportant?Bonesarehardontheoutside,buttheyaresoftontheinside.Thesoftpartofthebonemakesourblood.Bloodcarriesnutrientsthroughourbody.Italsohelpsmovewastematerialsawaysoourbodycanstayhealthy.Paragraph23.Whyisbloodimportant?Cal
5、ciummakesourbonessolid,soweneedtogetenoughofiteachday.Wecangetcalciumeasilyfrommilk,somevegetablesandotherfoods.Readaloudwiththespeaker.Workinpairstoaskandanswer.Roleplay.Workingroupsoffour,onestudentaskquestionsashostorhostess(主持人),theothersanswersasspecialists（专家）.学校请来
6、了养生堂三位专家，来谈谈骨骼健康话题。Whatareboneslike?outsideinsidebutbutFillintheblankslightstrongsofthardWhyarebonesimportant?Bonesareimportant.supportourbodieshelpusmovefreelysoftpartmakesbloodcarrythroughbodymoveawaynutrientswastematerialsoutsideinsidebutbutCanyoufindsomeopposites?lig
7、htstrongsofthardsoft-hardinside-outsideCanyoufindmoreopposites?soft-hardinside-outsideweak-stronghealthy-sickFindthedifferences.Bonesarehardontheoutside,butthey’resoftontheinside./Althoughbonesarehardontheoutside,theyaresoftontheinside.Theyarelight,butbonesarestrongenoug
8、htosupportourweight./Althoughtheyarelight,bonesarestrongenoughtosupportourweight.Position:“Although”com
