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
2024-01-16
53
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/3367822.html
相关试题推荐
(Sincethebeginning)ofthiscentury,moreandmorescientists(havebecome)in
Weallenjoyextraincometospendonthingslikebooks,sportsorhobbles.(Pas
Livingthingsare________cells,andcellsdonotgrowtomorethantwicethes
Oneofthethingsshe(wrote)(about)(were)lifeonasmallfarmatthe(beginn
17thcenturysailingshipsweresmallandrolledheavilyinroughseas,somost
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______in
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______in
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______in
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______in
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______in
随机试题
ThehealthcaredebatewillmovetotheSenate[br][originaltext]Healthca
IseethisprincipalalloverasIgothroughmyday.Iseerimsoncarwhee
凡在中华人民共和国境内从事建设工程的()等有关活动及实施对建设工程质量监督管理
首席审计官单独或与人力资源部门共同承担的招募员工责任当中最重要的工作之一是形成员
队列研究的特点有()A.前瞻性研究 B.观察性对比研究 C.根据暴露与
像片上的投影差是由()引起的像点位移。A.地形起伏 B.摄影姿态
个人贷款的借款人申请调整借款期限时,须具备的前提条件包括()。A.无欠息 B
下列水工建筑中,属于渠系建筑物的有( )。A.渡槽 B.倒虹吸管 C.跌水
下列设备中,工作性能受视距限制的是()。A.高频通信设备 B.甚高频通信设备
为防止人工游泳池生长藻类,池水中应加入A.碱式氯化铝 B.漂白粉 C.液氯
最新回复
(
0
)