Unit5.Motivationorunhealthyexperience(petition)第1页Pre-readingquestions:Today,weliveinanincreasinglypetitiveworld.Competitiontakesplaceineveryarenaofourlife---inourstudy,inourlife,andeveninourleisureactivities.Forsomeofus,wemayevenusewhatevermeanswecanthinkoftoachieveouraims.Buthaveweeverthoughtofforwhatpurposeswepeteagainsteachother,andwhetherpetitionisgoodforus?第2页Competitionorcooper...