首页
登录
职称英语
The agriculture revolution in the nineteenth century involved two things: the
The agriculture revolution in the nineteenth century involved two things: the
游客
2025-03-04
34
管理
问题
The agriculture revolution in the nineteenth century involved two things: the invention of labor-saving machinery and the development of scientific agriculture. Labor-saving naturally appeared first where labor was rare. "In Europe", said Thomas Jefferson, " the object is to make the most of their land, labor being sufficient:
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(粗糙的)plow, farmers could have carried practically all of the existing agricultural tools 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 1890 Charles Newbolt 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 bring home 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] The passage is mainly about______.
选项
A、the agriculture revolution
B、the invention of labor-saving machinery
C、the development of scientific agriculture
D、the farming machinery in America
答案
B
解析
主旨概括题。文章第一段讲到农业机器最初产生的原因,第二段讲到铁犁的产生,所以文章的中心思想应当是“节省劳力机器的发明”,选B。
转载请注明原文地址:http://tihaiku.com/zcyy/3982384.html
相关试题推荐
Dad:Couldyourunovertothestorerightaway?Weneedafewthings.Son:___
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Thecentury-old______betweenthetwotribeseventuallyendedthroughthepersist
All【C1】______thingsmustfighttostayalive.Theyhavetofeedonsomething
All【C1】______thingsmustfighttostayalive.Theyhavetofeedonsomething
All【C1】______thingsmustfighttostayalive.Theyhavetofeedonsomething
All【C1】______thingsmustfighttostayalive.Theyhavetofeedonsomething
All【C1】______thingsmustfighttostayalive.Theyhavetofeedonsomething
随机试题
WhatwillSamdo?[originaltext]W:Sam,canyougetsometicketsfortheLiverpo
______youareshownyourrentalcarintheparkinglot,youshouldchecktheveh
Classeswillceasetoexistbythetimecommunism______throughouttheworld.A、is
TheKitchenof2013:ExpertsDish[A]Thereignofthetrophy
Whatisspecialabouttheman’sbirthday?[originaltext]Jill:Whatareyourown
球形罐组装常用的方法包括()。A.水浮正装法 B.倒装法 C.分片法 D.
定性分析的过程包含哪些步骤?
为了提高筛检的灵敏度与特异度,可采用联合试验,其中关于并联试验下述哪一项是正确的
同时具有控制、调节两种功能的风阀有()。A.防火阀 B.对开式多叶调节阀
《消防法》规定,建筑构件、建筑材料和室内装修、装饰材料的防火性能必须符合(
最新回复
(
0
)