首页
登录
职称英语
What is the most important function of trees? [br] [originaltext] Trees are
What is the most important function of trees? [br] [originaltext] Trees are
游客
2023-11-12
72
管理
问题
What is the most important function of trees? [br]
Trees are useful to man in three very important ways: they supply him with wood and other products; they give him shade’and they help to revert droughts and floods. Unfortunately, in many parts of the world, man has not realized that (14)the third of these services is the most important. (16)2000 years ago a country cut down its trees to build warships to gain itself an empire. It gained the empire but, without its trees, its soil became hard and poor. Even if a government realizes the importance of an adequate supply of trees, it is difficult for it to persuade the villager to see this. (15) The villager wants wood to cook his food with; and he can earn money by producing charcoal or selling wood to the townsman. So, unless the government has a good control system, the forests will slowly disappear. The results are even more serious: for where there are trees their roots break the soil up allowing the rain to sink in and also bind the soil, thus preventing its being washed away easily; but where there are no trees, the rain falls on hard ground and flows away from the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well.
选项
A、needs a plentiful supply of trees
B、wants fire wood
C、wants to see wood to the townsman to get money
D、is not aware of the importance of environmental protection
答案
D
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3181490.html
相关试题推荐
Thediscussiontopicofthepreviousclassmeetingwas[br][originaltext]
Thediscussiontopicofthepreviousclassmeetingwas[br][originaltext]
Thediscussiontopicofthepreviousclassmeetingwas[originaltext][14]C
WheredidJaneAdamsspendherlifeaftersheleftherhome?[br][originaltext
WheredidJaneAdamsspendherlifeaftersheleftherhome?[br][originaltext
WheredidJaneAdamsspendherlifeaftersheleftherhome?[originaltext]
Whatsitcomdoesthemanlikebest?[br][originaltext]W:IwanttowatchTVan
Whatcanbelearntaboutthetrial?[br][originaltext]Thechiefjudgeat
Whatcanbelearntaboutthetrial?[originaltext]Thechiefjudgeatthew
WhathashappenedsincetheandoftheIceAge?[br][originaltext]Ifthe
随机试题
The______sceneofthewaterfallisaperfectdelighttotheeye.A、significantB、
______tennishasbeenplayedforcenturies,themoderngameoriginatedinEnglan
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
A.血容最严重不足 B.血容量轻度不足 C.容量血管过度收缩 D.心输出量
噬菌体的特点叙述错误的是A、个体微小 B、主要由蛋白质和核酸组成 C、属于非
下列作家中属于台湾儿童散文作家的是( )。A.徐鲁 B.桂文亚 C.吴继路
以下有关文物保护单位文物保护基本要求的描述错误的是( )。A.地处历史文化街区
患者肩臂重着酸痛,疼痛游走,遇寒加重,舌苔白,脉弦。治宜选用的方剂是 A.乌附
甲京剧团与乙剧院签订合同演出某传统剧目一场,合同约定京剧团主要演员曾某、廖某、潘
下列属于票据特征的是()。A、票据是债权证券 B、票据是设权证券 C、票据是
最新回复
(
0
)