首页
登录
职称英语
The agricultural revolution in the nineteenth century involved two things: t
The agricultural revolution in the nineteenth century involved two things: t
游客
2025-03-23
17
管理
问题
The agricultural revolution in the nineteenth century involved two things: the invention of labor-saving machinery and the development of scientific agriculture. Labor-saving machinery naturally appeared first where labor was scarce. "In Europe," said Thomas Jefferson, "the object is to make the most of their land, labor being abundant; here it is to make the most of our labor, land being abundant. " It was in America, therefore, that the great advances in nineteenth century agricultural machinery first came.
At the opening of the century, with the exception of a crude plow, farmers could have carried practically all of the existing agricultural implements on their backs; by 1860, most of the machinery in use today had been designed in an early form. The most important of the early inventions was the iron plow. As early as 1790 Charles Newbold of New Jersey had been working on the idea of a cast-iron plow and spent his entire fortune in introducing his invention. The farmers, however, would have none of it, claiming that the iron poisoned the soil and made the weeds grow. Nevertheless, many people devoted their attention to the plow, until in 1869 James Oliver of South Bend, Indiana, turned out the first chilled-steel plow. [br] What is the main topic of the passage?
选项
A、The agricultural revolution in New Jersey.
B、Machinery that contributed to the agricultural revolution.
C、The development of safer farm machines.
D、The need for agricultural advances.
答案
B
解析
本题问本文的主题是什么。通读全文,我们可以总结归纳出本文的中心主题应是有关引起农业革命的农具器械问题。因此,本题的正确答案是B。
转载请注明原文地址:https://tihaiku.com/zcyy/4008876.html
相关试题推荐
HereintheUnitedStates,beforeagriculturalactivitiesdestroyedthenatu
HereintheUnitedStates,beforeagriculturalactivitiesdestroyedthenatu
HereintheUnitedStates,beforeagriculturalactivitiesdestroyedthenatu
Theagriculturalrevolutioninthenineteenthcenturyinvolvedtwothings:t
Theagriculturalrevolutioninthenineteenthcenturyinvolvedtwothings:t
Theagriculturalrevolutioninthenineteenthcenturyinvolvedtwothings:t
U.S.researcherssuggestsleepingcanhelpusrememberthingswehavejust
U.S.researcherssuggestsleepingcanhelpusrememberthingswehavejust
U.S.researcherssuggestsleepingcanhelpusrememberthingswehavejust
U.S.researcherssuggestsleepingcanhelpusrememberthingswehavejust
随机试题
[originaltext]W:AirportsaresadplacesM:SometimesIguessso.Butwe’llkee
中国书法(calligraphy)作为一种具有4000多年历史的抽象艺术,它不仅仅是书写汉字,也不只是写好汉字,它是一门表现精神的艺术。书法作品承载着书
市盈率是评价上市公司盈利能力的指标,市盈率越高,企业未来成长的潜力越大,说明投资
中国古代五行说认为,金、木、水、火、土是生成世界万物的五种基本元素,这种观点是一
近年来,M省商品交易市场呈现稳步发展态势。2014年,M省共有成交额亿元以上商品
《安全生产法》“生产经营单位应当教育和督促从业人员严格执行本单位的安全生产规章制
超前锚杆孔位偏差要求()。A.±10mm B.±20mm C.±50m
根据《中华人民共和国证券法》的规定,为股票发行出具审计报告的注册会计师在一定期限
慢性支气管炎典型病变中没有A.粘膜上皮鳞化 B.支气管腺体和杯状细胞增生
可燃气体探测报警系统能够在保护区内泄漏可燃气体浓度低于爆炸下限的条件下提前报警,
最新回复
(
0
)