首页
登录
职称英语
[originaltext] Desertification is a process. It changes productive land into
[originaltext] Desertification is a process. It changes productive land into
游客
2023-08-25
67
管理
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. 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.
Questions 20 to 22 are based on the passage you have just heard.
19. What does the speaker say about desertification?
20. What is mentioned as one of the poor farming methods?
21. For what purpose is FADE founded?
22. What is said about the trees around cropland?
选项
A、It is a rare phenomenon.
B、It changes useless land into productive land.
C、It changes cropland into desert.
D、It helps farmers remove fertile topsoil.
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2956121.html
相关试题推荐
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Doyouknowhowtoadvertiseforabank?Well,thereareseve
[originaltext]Doyouknowhowtoadvertiseforabank?Well,thereareseve
[originaltext]W:Whichchanneldoyouwant?M:NewsChannelplease.I’dliketo
[originaltext]W:Whichchanneldoyouwant?M:NewsChannelplease.I’dliketo
[originaltext]W:Goodmorning,Mr.Johnson.I’vecomehereforaninterview.M:
[originaltext]W:Goodmorning,Mr.Johnson.I’vecomehereforaninterview.M:
[originaltext]W:Hi,Tony.WillyougotoTom’shometostudyinagroupthisa
随机试题
Thankstothemeansofmoderntransportationandcommunication,theworldis
Whatwasthefoodlike?[br][originaltext]Jane:It’sgoingtobedifferentfro
BecauseIrelandisanislandgeographicallynearthemainlandoftheUnited
(1)Simplywalkingthroughanunfamiliarneighborhoodcanmakeyoufeelmore
当我们翻开尘封已久的相册,回顾过往,昔日愉快幸福的情绪体验又油然而生。这属于(
下列成语中体现辩证否定观点是( )A.古为今用,洋为中用 B.百尺竿头,更
按因专项计划资产的管理、运用、处分或者其他情形而取得的资产,归入专项计划资产,下
当公司增资扩股后,在短期内,公司的每股税后净利润通常会因此而()。 A.摊薄
当参比制剂是静脉注射剂时,试验制剂与参比制剂AUC的比值代表()A.相对生物
下列何药是扑米酮的代谢产物?( )A.异戊巴比妥 B.苯巴比妥 C.司可巴
最新回复
(
0
)