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ID:49459026
大小:288.50 KB
页数:34页
时间:2020-02-05
《unit 8 Providing Explanations.ppt》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ProvidingExplanationsWhy?How?Weallknowballscanbounce,buthaveyoueverthoughtaboutwhyorhowtheybounce?GivingExplanationsPractice2:Workwithapartnerandtalkaboutwhyorhowthefollowingthingshappen.Howdoairplanesfly?Whydopeoplesweat?WhydoestheEarthhavedifferentseasons?Whycan’tbabieswalk
2、?Whydopeoplesometimesshakeorturnredwhenthey’renervous?ProvidingSupportforYourExplanationOnceyouhavechosentogiveanexplanation,youneedtosupportit.Youshouldconsider:reasonswhysomethingdoeswhatitdoes,orhappensthewayithappensdefinitionsordescriptionsofobjectsandmaterialscauseseffe
3、ctstheamountofsupportyouneedtogiveaclearandeffectiveexplanationgivingexamplesPractice3:Lookatthisexplanationtowhyaballbounces.Lookatthequestionsbelowitandtickthequestionifyouranswerisyes.Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofit.Doest
4、heexplanationgivereasonswhytheballbounces?Doesitgiveadescriptionordefinitionoftheobject/material(ball/elastic/surface)?Doesitgiveacause?Doesitgivetheeffect?Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofit.Doestheexplanationgivereasonswhytheb
5、allbounces?Yes.Itsaysballsbouncebecausetheyaremadeofelasticandthatelasticbounces.Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofit.Doesitgiveadefinitionofobjectsandmaterials?Nodefinition.Whatis‘elastic’?Whatkindofsurface?You’dbesurprisedhowma
6、nypeopledon’tknowwhatelasticis.Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofit.Doesitgiveacause?Yes.“…becauseitismadeofanelasticsubstance.Whenithitsasurface…”Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofi
7、t.Doesitgivetheeffect?Yes.Theeffectisthat“itbouncesoffofit”[thesurface].Aballbouncesbecauseitismadeofanelasticsubstance.Whenithitsasurface,itbouncesoffofit.Isthereenoughsupport?Itdependsonthereader.Whiletheexplanationdoesgivereasons,causesandeffects,itmaynotgiveenoughsupportf
8、orthelayman.Thereaderwillstillhavemanyquestions.Forinstance,thewrite
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