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
2023-08-20
27
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:https://tihaiku.com/zcyy/2941477.html
相关试题推荐
[originaltext]W:Willyoutakethesebookstothelibraryduringyourlunchhou
[originaltext]W:Willyoutakethesebookstothelibraryduringyourlunchhou
[originaltext]W:Willyoutakethesebookstothelibraryduringyourlunchhou
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]Ababyspendsthefirstyearoflifelearningtolisten.Ane
[originaltext]W:Whatarethosebooksinyourhand?M:Nothingparticular.Just
[originaltext]W:Whatarethosebooksinyourhand?M:Nothingparticular.Just
随机试题
Theytalkedforalongtime,______longerthanhefeltwasnecessary.A、quiteB、pr
IntotheUnknownTheworldhasneversee
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
A.肠系膜上动脉栓塞导致的肠梗阻 B.结肠癌导致的肠梗阻 C.两者均是 D
占地面积大于()m2的厂房应设置室内消火栓系统。A.200 B.300
某产妇,GP,胎儿娩出后阴道大量流血,胎盘未娩出,手取胎盘失败。此时最恰当的处理
(2017年真题)基金份额持有人享有权利包括()。 Ⅰ.分享基金财产收益
遇水可产生二氧化碳气体而使片剂快速崩解的片剂是A.咀嚼片B.泡腾片C.分散片D.
330kV及以上变压器运行中的油中溶解气体含量总烃达到150μL/L应注意。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
最新回复
(
0
)