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
2023-11-06
45
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 prevent droughts and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. 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 adequate supply of trees, it is difficult for it to persuade the villager to see this. 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、The three benefits brought by trees.
B、Trees and soil conservation.
C、The various uses of trees.
D、The attitude of the government towards trees.
答案
B
解析
主旨题。文章开篇介绍了树木的3种好处,然后就其中第3个好处展开描述,即保护土壤方面的作用,故选B项。
转载请注明原文地址:https://tihaiku.com/zcyy/3164070.html
相关试题推荐
Sevenpeoplewerearrestedbecause[br][originaltext]PoliceintheIrishR
WhohasMr.Abbasbeenholdingtalkswith?[br][originaltext]ThenewPales
WhatiscommontoallthefilmsproducedinHollywood?[br][originaltext]
WhatiscommontoallthefilmsproducedinHollywood?[originaltext]Hollyw
Whatisthepossiblerelationshipbetweenthemanandthewoman?[originaltext]W
WhichisNOTtrueoftheman?[br][originaltext]M:Oh,hello,LeeDong.Comeo
WhichisNOTtrueoftheman?[originaltext]M:Oh,hello,LeeDong.Comeonin,
Studentdemonstratorsdemanded______.[br][originaltext]Eaton-wieldingpo
Studentdemonstratorsdemanded______.[originaltext]Eaton-wieldingpolicei
KofiAnnanisexpectedtomakeaspeech_______.[originaltext]EastTimoris
随机试题
Allofthetechnologicaladvancesthathaveincreasedthequalityofmusich
[originaltext]ItisbarelyhalfacenturysincepartsoftheThameswerede
OnSaturday,BexarCountyDigitalLibrary—a$2.4million,4,000-square-foot
个体演员在向文化主管部门申请备案时,应持有()A.个人身份证明 B.艺术
白细胞的生理特性有()。A.趋化 B.变形、游走 C.释放 D.吞噬
国家教育权的分配在横向上一般可分为( )。A.立法权 B.司法权 C.行政
针刺人迎、廉泉、通里,宜采用A.仰卧位 B.侧卧位 C.俯卧位 D.
建设项目管理的控制目标是指()。A:质量目标 B:收益目标 C:进度目标
会计核算的具体化是()。A.会计计量 B.会计记录 C.会
国务院银行业监督管理机构及其派出机构遵循公平、公开、公正和效率的原则对银行业实施
最新回复
(
0
)