136 0 01:26 App 托福阅读真题第59篇Iron in Ancient Africa 4 0 01:22 App 托福阅读真题第54篇Disturbed and Fragmented Forests 21 0 01:41 App 托福阅读真题第276篇The Distribution of Gliding Animals 18 0 01:33 App 托福阅读真题第142篇The Multiplier Effect 20 0 01:33 App 托福阅读真题第222篇...
4.According to the professor, what activities associated with the beginnings of agriculture may have slowed or prevented the onset of a predicted ice age?[Click on two answers.] A. The clearing of trees B. The burning of fossil fuels ...
The Origins of Agriculture At one time, researchers believed there was a clear "wave of advance"of agriculture through Europe between 8,000 and 6,000 years ago. And it may seem easy to explain such a sudden and thorough transition from foraging (depending primarily on wild foods) to agricult...
修辞目的题，先读例子所在的一句话，说地球以前也有气候变化，但农业却没发展。由于整个句子都是例子，...
托福阅读句子简化题:The Origins of Agriculture 【Paragraph 3】Climatic changes at the end of the glacial period 13,000 years ago have been proposed to account for the emergence of farming. The temperature increased dramatically in a short period of time (years rather than centuries), allowing for...
How did it come about that farming developed independently in a number of world centers (the Southeast Asian mainland, Southwest Asia, Central America, lowland and highland South America, and equatorial Africa) at more or less the same time? Agriculture developed slowly among populations that had ...
托福阅读真题第61篇TheOriginsofAgriculture At one time, researchers believed there was a clear "wave of advance"of agriculture through Europe between 8,000 and 6,000 years ago. And it may seem easy to explain such a sudden and thorough transition from foraging (depending primarily on wild foods...
托福考试 复习 托福阅读TPO21(试题+答案+译文)第2篇:TheOriginsofAgriculture 托福阅读原文 【1】Howdiditcomeaboutthatfarmingdevelopedindependentlyina numberofworldcenters(theSoutheastAsianmainland,SouthwestAsia, CentralAmerica,lowlandandhighlandSouthAmerica,andequatorial Africa)atmoreorlessthesametime?Agriculturedevelop...
The Origins of Agriculture How did it come about that farming developed independently in a number of world centers (the Southeast Asian mainland, Southwest Asia, Central America, lowland and highland South America, and equatorial Africa) at more or less the same time? Agriculture developed slowly ...
explanations First, agriculture did not in fact spread from a single center. Instead, it appeared, apparently independently in many different regions of the world. How can we explain the near-simultaneity of these changes in parts of the world that seem to have had no contact with each other...