首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、It can prevent global warming. B、It can catch blowing sand. C、It can stop desertification. D、It forces farmers leave cropland.
A、It can prevent global warming. B、It can catch blowing sand. C、It can stop desertification. D、It forces farmers leave cropland.
admin
2013-08-12
53
问题
Desertification is a process. It changes productive land into useless land. One example of desertification is when a desert spreads into nearby cropland. In time, the cropland becomes an extension of the desert. But that is not the only way farmers lose fertile soil. Long dry periods, warmer temperatures and the removal of trees can all lead to the loss of good cropland. Floods can remove fertile topsoil and begin a process resulting in the loss of planting areas.
Another danger to good land is poor farming methods. Farmers should avoid continually planting crops in the same places, or letting animals feed year after year on the same lands.
Countries from Guatemala to Greece to Vietnam are working against the loss of cropland. Africa especially faces the risk of desertification.
When cropland turns to desert, people move to other places for better land and better jobs.[31]This migration can cause political and social tensions. A nonprofit organization in Nigeria is working to bring public attention to the problem. The group is called Fighting Against Desert Encroachment, or FADE. Newton Jibunoh who started this group in 2000 is currently leading a delegation to thirteen African countries to discuss the dangers of losing farmlands. In northern Nigeria, the group organized a competition between schools in seven areas. The goal was to see who could plant the most trees.
Trees are often cut down for fuel wood. But lines of trees around cropland can catch blowing sand. In addition, tree roots can hold soil in place. Even within a desert, trees can be planted as borders around grassy areas.
29. What does the speaker say about desertification?
30. What is mentioned as one of the poor farming methods?
31. For what purpose is FADE founded?
32. What is said about the trees around cropland?
选项
A、It can prevent global warming.
B、It can catch blowing sand.
C、It can stop desertification.
D、It forces farmers leave cropland.
答案
B
解析
短文最后提到,农田周围的树木可以阻挡风沙。B正确。
转载请注明原文地址:https://kaotiyun.com/show/bW97777K
0
大学英语六级
相关试题推荐
Scotlandisauniqueplace.IthassomeofthemostbeautifulcitiesinEurope,alivingevidenceofasplendidandproudpast.
Scotlandisauniqueplace.IthassomeofthemostbeautifulcitiesinEurope,alivingevidenceofasplendidandproudpast.
A、Forhiswedding.B、Forameal.C、Tohisnewhouse.D、Tohisgirlfriend’shome.BForwhatCollininvitedAllenandBob?
A、Atthegym.B、Inthepark.C、Onthestreet.D、Atarestaurant.B选项均为表示地点的介词短语表明,本题可能考查某件事情的发生场所。对话中女士提到,Iplannedtogotothe
A、Heislatebecausetherewasatrafficjam.B、Hewascaughtbyatrafficpoliceman.C、Hehadacaraccident.D、Hecausedacar
Hisignoranceofthecompany’sfinancialsituation_________________________(导致未能采取有效措施).
A、Theinternetaddress.B、Agiantnetworkofcomputers.C、Anelectronicmail.D、TheUSpostalservice.B短文在开头提到上网就意味着要与计算机网络系统相连
WritinginWiredMagazine,JonKatz,amediacritic,summarizesthedilemmafacingnewspaperpublishers:"Sofar,atleast,onli
TheLoveofaRobotCancomputerseverreallybelikeus,andifnot,whynot?Thesimilaritiesareobvious.Wecanbothwor
随机试题
国家机关及其公职人员,依照法定的权限和程序,为完成特定的任务而运用法律的活动是法的监督。
孕妇30岁,妊娠38周,近2天自觉腹胀。检查:腹形较妊娠月份大,骨盆外测量正常,胎头浮,跨耻征(+)。B型超声胎儿双顶径11cm,应诊断为
A、有限的移植器官供体如何分配给需要者B、有些器官移植是在亲属间进行的C、用确认脑死亡患者的器官施行器官移植术D、器官移植者的人格完整有待改善E、器官移植的前景未达到全球的合作上述各项中,涉及公正伦理问题的是
(2014年)流体在圆管内做层流运功,其管道轴心流速为2.4m/s,圆管半径为250mm,管内通过的流量为()。
测量工作对顶进箱涵很重要,必须(),并做好记录。
在索赔资料准备阶段,主要工作有( )。
可撤销的民事行为被撤销后,其行为()。
不良贷款率的公式是()。
下列关于本期采购付现金额的计算公式中正确的有()。
【T1】意识是一种奇妙地反应、思考和选择的能力,是人类最伟大的进化性成就。(consciousness)但是,再好的东西也不宜过多。【T2】幸运的是,人类也具备了不假思索办事的能力。(performtasks)完成这些复杂行为,像学习如何演奏吉他、说
最新回复
(
0
)