首页
登录
职称英语
A serious threat to farmers in many parts of the world is erosion. Erosion o
A serious threat to farmers in many parts of the world is erosion. Erosion o
游客
2023-07-17
15
管理
问题
A serious threat to farmers in many parts of the world is erosion. Erosion occurs if a large area of land is 【B1】______ of trees and is then badly treated by the farmers. The rain and wind may 【B2】______ wash away, or blow away much of the topsoil. When this happens, 【B3】______ of wheat or corn become weaker and weaker until nothing grows well. If erosion continues, it will turn good land into a desert.
In the past when erosion 【B4】______ , farmers sometimes moved to a new place to farm. Sometimes they could not move, but continued to try to grow food in the 【B5】______ soil. This caused them to sink into 【B6】______ . Soon some people 【B7】______ that there was little rich, 【B8】______ soil in the world, so the government began to try to stop erosion.
One of the first experiments to stop erosion began in the United States in 1933. The experiment was carried out in the area of the Tennessee River. 【B9】______ As a result, most of the people living around the Tennessee River were very poor.
【B10】______ The government workers also helped farmers to fertilize their soil and to learn new farming methods which could stop erosion.
At the beginning, the farmers were not interested. But soon, good healthy crops began to appear on the land where new methods were used. 【B11】______ The great success of this experiment had led to similar projects in the other parts of the world. [br] 【B11】
选项
答案
Ten years after that the crops were extremely prosperous.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2845757.html
相关试题推荐
Someguidelinesthatadvisepeoplehowtoloseweightareseriouslyflaweda
Someguidelinesthatadvisepeoplehowtoloseweightareseriouslyflaweda
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
TherecessionistakingaserioustollonAmericanretail,bute-commerceco
随机试题
[originaltext]W:Stevenaskedifhecouldgetaridewithustothebeach.Dowe
A.removeB.judgeC.intelligenceD.indicateE.concerningF.consists
关于支座安装的说法,不正确的是()。A.支座安装前,应对支座垫石的混凝土强度、平
2017年5月14日至15日,中国在北京主办“一带一路”国际合作高峰论坛,此次高
已知某外保温外墙的平均传热系数为0.55W/(㎡·K),冬季室外计算温度为-12
A.7 B.10 C.14 D.5
根据《期货公司风险监管指标管理办法》,期货公司风险监管指标包括()。A.期货
关于社会主义法治理念与罪刑法定原则的关系有以下观点: ①罪刑法定的思想基础
项目盈利能力分析的静态指标有( )。A.项目投资回收期 B.总投资收益率
热拌沥青混合料面层施工技术准备工作说法正确的是()。A.选购经调查试验合格的材料
最新回复
(
0
)