学术英语（社科）_Unit 1.pptx

Unit1Decision-MakingBehaviorsinEconomicActivities

ContentsReadingTextATextBViewingSpeakingResearchPaperWriting

TextALead-intaskWhilereadingAfterreadingtasksHowPeopleMakeDecisions

Lead-intaskHowdopeoplemakedecisions?CriticalthinkingReferenceanswersPeoplemakedecisionsbyfollowingtheirintuition,bytakingotherpeople’sadvice,orbythinkingaboutprosandcons.

WhilereadingThefocusedissueSomeeconomists’pointofview:howpeoplemakedecisions.ReadingtaskWhatarethetwoprinciplesthateconomistsbelieveinfluencepeople’sdecision-making?

Languagesupport“Otherwise”isanadverbhere.Itisusedforsayingthatsomethingistrueexceptforthefactthatyouhavejustmentioned.e.g.Thedriversufferedshockbutwasotherwise unhurt.WhilereadingMarginaldecision-makingcanhelpexplainsomeotherwisepuzzlingeconomicphenomena.(Para.5)

Languagesupport“Inturn”canbeusedtoindicateasequentialrelationshipascomparedtotheonejustmentioned,meaningaccordinglyorsimilarly,withrespecttosequence,precedence,orhierarchy.e.g.Mycarwashitbyatruck,whichinturnwashit bythevan. HeleakedthesecrettoTomwhointurnleaked ittoAddison.WhilereadingThemarginalbenefit,inturn,dependsonhowmanyunitsapersonalreadyhas.(Para.5)

Languagesupport“Ifandonlyif”isoftenusedinlogic,meaningthatthetruthofeitheroneoftheconnectedstatementsrequiresthetruthoftheother(当且仅当).e.g.Arectangleisasquareifandonlyifallfourofitssideshavethesamelengths.WhilereadingArationaldecision-makertakesanactionifandonlyifthemarginalbenefitoftheactionexceedsthemarginalcost.(Para.6)

Languagesupport“Gosofarastodosth.”meanstobehaveinawaythatseemssurprisingorextreme甚至做出某事e.g.Manyranchersgosofarastoblockpublic accessroadswithgates.WhilereadingOneeconomistwentsofarastosuggestthat…(Para.7)

Languagesuppo