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
2024-02-18
2
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] 【B8】
选项
答案
fertile
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3462018.html
相关试题推荐
Forsuchaseriousoffencehewasluckyto______withonlyafine.A、getawayB、g
Conditionseverywherehavebeenseriouslyworsened,______thepostwarriseinp
Theoilcrisisbyfar______themostseriousproblemthatthegovernmentfaced.
Theywere______hurtbyyourruderemarks.A、verymuchB、badlyC、seriouslyD、cos
______careinhospitalsshouldbegiventothosewhoareseriouslyill.A、Extens
Seriousasthedamage______theshipwas,thecaptainwithhiscrewsucceededi
[originaltext]W:Tom,youreallymusttakeschoolmoreseriously.Ifyoudon’t
[originaltext]W:Tom,youreallymusttakeschoolmoreseriously.Ifyoudon’t
[originaltext]W:Tom,youreallymusttakeschoolmoreseriously.Ifyoudon’t
[originaltext]W:Tom,youreallymusttakeschoolmoreseriously.Ifyoudon’t
随机试题
ThelargestlakeinBritainis______A、LoughNeagh.B、WindermereWater.C、Conist
甲与乙为邻居,甲长期将自家杂物堆放于乙家门前。乙享有( )A.返还原物请求权
从E-mail服务器中取回来的邮件,通常都保存在客户机的()里。A.发件箱
计算机硬件由()、存储器、输入/输出设备、总线等部分组成。A.CPU B.
特别加强管制的麻醉药品是()。A.二氢埃托啡、哌替啶 B.吗啡、哌替啶
学习动机是引发和维持个体学习活动,并将学习活动引向一定学习目标的动力机制,这种动
合法合规是商业银行得以生存和健康持续发展的基础前提。()
共用题干 AmericanSportsTheUnitedStatesi
基于信息化绩效考评系统中,绩效考评后台系统的主要功能包括( )。A.搭建组织架
下列关于上市公司发行股票信息披露的一般要求的表述,正确的有()。A:上市公司可以
最新回复
(
0
)