材料科学英语Unit 3 Lecture 4 Critical thinking.ppt

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材料科学英语Unit 3 Lecture 4 Critical thinking.ppt

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CriticalthinkingUnit3

CriticalThinking:Task11Unit31.Thesameobjectcanbemadefromdifferentmaterials.Cups,forexample,canbemadeoutofpaper,plastic,potteryetc.Thinkofanotherexampleofthesameobjectbeingmadefromdifferentmaterials.Explainwhatmechanicalpropertiesofthesematerialsareappliedtotheproductionoftheobject.

2Unit32.LookattheVenndiagramsformajorengineeringmaterials.Whatmechanicalpropertiesdotheyshare?Presentacoupleofspecificexamplestohelpyouexplain.CriticalThinking:Task1

Traditionally,thefourmajorclassesofmaterialsaremetals,polymers,ceramicsandcomposites.Whatmechanicalpropertiesdotheyshare,andwhatmakesthemdifferent?Discussingroupsandgivesomeexamplestosupportyourarguments.CriticalThinking:Task2

Whatisaliteraturereview?Aliteraturereviewisanaccountofwhathasbeenpublishedonatopicbyaccreditedscholars.Thepurposeofwritingitistothereaderwhatknowledgeorideashavebeenestablishedonthattopic,andwhatstrengthsandweaknessesthosestudieshaveare.ResearchingTask

Aliteraturereviewisusuallyintendedtosummarizeandsynthesizethepreviousworkonthetopic.Asummaryisarecapoftheimportantinformationonthetopic,whileasynthesisisare-organization,orareshufflingofthatinformation.Aliteraturereviewmightgiveanewinterpretationofoldmaterialsorcombinenewwitholdinterpretation,oritmighttracetheintellectualprogressionofthefield,includingmajordebates.

Howtowritealiteraturereview?1.Focusonyourspecifictopic.2.Findrelevantliterature.3.Writeaclear,shortintroduction.4.Brieflysummarizeyourstudies.5.Synthesizeyoursummary.

ResearchingTaskUnit3Compareandcontrastthemechanicalpropertiesofsteel,glassandcementintermsofstrength,ductility,hardness,impactresistance,andfracturetoughness.Readrelativeresourcesandwritealiteraturereviewfollowingt