首页
登录
职称英语
[originaltext] Over the years, new technologies have changed farming. Change
[originaltext] Over the years, new technologies have changed farming. Change
游客
2024-01-28
38
管理
问题
Over the years, new technologies have changed farming. Change in a general direction is a trend. Yet people often recognize trends only when they consider the past. Today, we look back at some trends in American agriculture.[22]In 1920, America had more than 25 million horses and mules. Most were used for farm work. Around the same time, a competitor began to appear in large numbers. Tractors could turn soil, pull loads and speed harvests—and they could do it better. More tractors meant fewer horses and mules. By the 1960s, the numbers of these work animals settled to where they remain today. That is about one-tenth the levels in 1920. Yet even the demand for tractors had its limits. Their numbers have been slowly decreasing since 1982. Experts say farmers can do more with less now because of new technologies. As tractors replaced horses and mules, farmers no longer needed to raise crops to feed work animals. Oats have long been food for horses and mules. In 1954, American farmers planted over sixteen million hectares of oats. By 2000, that was down to less than one million hectares. So what did the farmers do with the extra land? More and more farmers began to plant a new crop around the same time that the tractor became popular. It was the soybean. The soybean is one of the oldest plants harvested. Yet it was not planted widely in the United States until the 1920s. By the year 2000, close to 30 million hectares were planted with soybeans. It is the nation’s most important crop for high-protein animal feed and for vegetable oil. In fact, soybeans are the second most valuable crop grown by American farmers after corn. Much of the soybean production goes to exports.
22. In which year did tractors begin to appear in large numbers?
23. How many horses and mules did America have in the 1960s?
24. What is America’s most important crop for high-protein animal feed and for vegetable oil?
25. What is the most valuable crop grown by American farmers?
选项
A、About 1920.
B、Around 1925.
C、Around 1930.
D、About 1935.
答案
A
解析
短文中提到,1920年,美国用于农业生产的马、骡数量有2500多万,“同时一个竞争者开始大量出现。拖拉机……”意即1920年拖拉机开始大量涌现,故A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3400918.html
相关试题推荐
[originaltext]Anewstudywarnsthatabout30%oftheworld’speoplemayno
[originaltext]Fromthislookoutweenjoyoneofthemostspectacularviews
[originaltext]Fromthislookoutweenjoyoneofthemostspectacularviews
[originaltext]Whenmyinterestshiftedfromspacetothesea,Ineverexpec
[originaltext]Whenmyinterestshiftedfromspacetothesea,Ineverexpec
[originaltext]W:Goodmorning.WhatcanIdoforyou,sir?M:Goodmorning.I’v
[originaltext]W:Goodmorning.WhatcanIdoforyou,sir?M:Goodmorning.I’v
[originaltext]W:Goodmorning.WhatcanIdoforyou,sir?M:Goodmorning.I’v
[originaltext]W:John,haveyouchosenaphysicaleducationclassyetforthis
[originaltext]Newtougheralcoholguidelineshavebeenpublishedwhichredu
随机试题
HowmanyofficersdoestheHongKongPolicedepartmentroughlyhaveaccordingto
函数不可导点的个数是().A.3 B.2 C.1 D.0
利润中心一般用一张()来呈现其业绩。A.资产负债表 B.现金流量表 C.内部
确定空调房间围护结构的传热系数时,需要考虑的因素有()。A.室内外温差、恒温
下列关于建筑材料分类说法错误的是()。A.按照化学成分来分类,水泥混凝土属
秦始皇统一中国的时间是( )。A.公元前230年 B.公元前228年 C.公
写字楼物业的市场营销,不宜采取的操作方式是()。A:围绕物业的交通便利性展开市场
基金合同是约定基金管理人、基金托管人和基金份额持有人权利义务关系的重要法律文件,
下列化合物属于黄酮醇的是A.大豆素 B.葛根素 C.橙皮苷 D.山奈酚
路基处理方法中:重锤夯实、机械碾压、振动压实、强夯的方法属于( )。A.换土垫层
最新回复
(
0
)