学术英语课后答案

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1、CriticalreadingandthinkingTask1ThetreediagrambelowIllustratesthemainpointsofthetext.Fillintheblanksaccordingtothetext.Decision-makingbehaviorsineconomicactivitiesThinkingatthemargincomparingmarginalcostandmarginalbenefitsExample1standbyticketsRespondingtoincentivesExample1thepriceofanappl

2、eExample2watervs.diamondsataxonseatbeltsawExample2Example3gasolineTask2Decidewhetherthefollowingstatementsaretrue(T)orfalse(F).F1Whenrationalpeoplemakedecisionsinlife,theyareverycertainofthechoice.F2Atthetimeofexamination,studentshavetodecidehowtousealltheirtimestudying.F3Marginalchangesa

3、resmallgradualchangesofthepresentplanofaction.F4Theexampleofthestandbyflyistoldtoshowhowcostcanbeignored.T5Diamondsaremoreexpensivethanwaterbecausepeoplearemoreattractedtothem.T6Thequotationofoneeconomist'Peoplerespondtoincentives.Therestiscommentary.5,isgiventoshowtheimportanceofincentiv

4、es.F7Theexampleoftheappleshowshowfoodpricesvaryaccordingtomarketneeds.F8Thegasolinetaxhasaneffectonpeople'schoiceofcars.F9Whentheseatbeltismadecompulsory,peopledrivemorecarefully.T10Policymakersneedtotakeintoconsiderationthelessobviousindirecteffectsofapolicy.Task1Specializedvocabularysca

5、rceresources稀缺资源maximizeprofits最大化利润netresult净结果levelofsatisfaction满意度rationalpeople理性人边际变化23456MatchthewordsinColumnAwiththoseinColumnBandthentranslatethephrasesyouhavegotintoChinese・ColumnAColumnB1marginalaresource2scarcebresult3maximizecchange4netdsatisfaction5levelofepeople6rationalfp

6、rofit1marginalchangeTranslatethefollowingsentencesintoEnglish,usingsomeofthephrasesabove・1我们明年的目标是获得利润最大化。Weaimtomaximizeprofitsoverthenextyear.2时间是一种稀缺资源，因此如果工人失业，他们的时间就浪费了。Timeisascarceresource,soifworkersareunemployedtheirtimeiswasted.3理性人有非理性的想法吗？Dorationalpeoplehaveirrationalthoughts

7、?4满意度调查结果表明游客对某些服务不满意。Researchintosatisfactionlevelhasfoundthattouristsarenotsatisfiedwithsomeoftheservices.Task2SignpostIanguageMatchthesignpostlanguagefromTextAwiththepurposeeachofthemserves.SignpostlanguagePurposes1aswewillseeaexplanation2atthesametimebtimesequen