学术英语综合第四单元练习答案

Unit4LanguageBuilding-upAnswerkeysTask1Collocation1.greenmovement2.protectedareas3.extinctionofanimalsandplants4.wildfishstocks5.makecleanpower6.saveresources7.培育生物多样性8.控制污染9.阻止对生态体系的破坏10.扩大清洁产业11.集体世界观12.生态经济Task2SignpostLanguage1.Embeddinganarrativethatmovesusonfromprotectingnaturefrompeopletoprotectingnatureforpeopleisanessentialpartofthisreframing.(Para.6)Ifsuchanarrativeistogainpracticaleffect,thenlookingafternaturemusturgentlybeseenasnotonlyanenvironmentalchallenge,butalsoaneconomicone.(Para.7)Theauthormanagestobringinanewtopicandmaintaincoherencebyrepeatingkeyswordssuchasnarrative,nature.2.Solongaswecontinuetotravelintwodirectionsatonce,promotingenvironmentalgoalsontheonehandwhileontheotherdirectlycontradictingthatwithmeasurestoachievemoreeconomicgrowth,thelongerwewillfailtomakerealprogress.(Para.7)Whenitcomestoeconomicsandecologythereisplentyofgoodthinkingalreadydone.(Para.8)Theauthormanagestobringinanewtopicandmaintaincoherencebyrepeatingkeywordssuchaseconomic,economics.Task3FormalEnglish1.unchangeable;increasing2.control3.effort;charitable4.pleasantdetail5.complicated6.change7.Changing8.important