92.农业起源 TW: origins of agriculture 1.kw1: C的观点: climatechange climate change: desiccationàto banksof rivers and oases (the close contact) àdomesticationàpopulationgrowth and settlements aw-: rather simple, not tally, not include detailedinterpretation 2.kw2: population pressure aw-: ‘catastrophic’ explanation aw+: population pressure hunter-gatherers riseàmore offspringàpopulationgrowsàlimitation of resourcesàagriculture why agriculture (laborious and time-consuming):settlementsàchild rearing easieràtake care of children 而这背后(behind)的原因可能是气候变化导致的 3.kw3: climate change-driving force a: warmingàmore adaptablecommunities b: climate variability declinedàestablishsettled existence c: return to near-ice-age conditionsàagriculturethe only option 总结:提出一个专家理论,对其评价并提出不同观点。经过推理最终还是认可并完善了专家理论——农业的开端源起地球气候的骤变。(二三段之间的关系不太清楚?)
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