2023年托福阅读考试真题及答案

2023年托福阅读考试真题及答案Duringthesecondhalfofthenineteenthcentury,theproductionoffoodandfeedcropsintheUnited

2023 年托福阅读考试真题及答案 Duringthesecondhalfofthenineteenthcentury,theproduc tionoffoodandfeedcropsintheUnitedStatesroseatan下面是我为大家整理的托福阅读考试真题及答案,供大家参考。 Duringthesecondhalfofthenineteenth century,theproductionoffoodandfeedcropsin theUnitedStatesroseatanextraordinarilyrapid rate.Cornproductionincreasedbyfourandahalf times,haybyfivetimes,oatsandwheatbyseven times.Themostcrucialfactorbehindthis phenomenalupsurgeinproductivitywasthe widespreadadoptionoflabor-savingmachineryby northernfarmers.By1850horse-drawnreaping machinesthatcutgrainwerebeingintroducedinto themajorgrain-growingregionsofthecountry. Horse-poweredthreshingmachinestoseparatethe seedsfromtheplantswerealreadyingeneraluse. However,itwastheonsetoftheCivilWarin1861 thatprovidedthegreatstimulusforthe mechanizationofnorthernagriculture.Withmuchof