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
51
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、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
转载请注明原文地址:https://tihaiku.com/zcyy/3181492.html
相关试题推荐
Theproject’smaincontractorwasfrom______.[br][originaltext]Officials
Theproject’smaincontractorwasfrom______.[originaltext]Officialsfromt
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Whatisthespeaker?[br][originaltext]Goodmorning.Aspartofyourorien
Whatisthespeaker?[br][originaltext]Goodmorning.Aspartofyourorien
Whatisthespeaker?[originaltext]Goodmorning.Aspartofyourorientation
[originaltext]Well-QualifiedCandidatesFind
HowmanypeoplediedinriotsonTuesday?[br][originaltext]Violentmobs
WhatistheMessageGroupdefending?[br][originaltext]Agrass-rootsgro
WhatistheMessageGroupdefending?[originaltext]Agrass-rootsgrouptro
随机试题
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]Q:Howmanypeoplewillattendthemeeting?[/originaltext]A、About
[originaltext]W:Janemissedtheclassagain,didn’tshe?Iwonderwhy?M:Well
下列关于球墨铸铁管道铺设施工的说法中,表述正确的是()。A.接口工作坑每隔一个
用于眼部的散剂应通过A.4号筛 B.5号筛 C.6号筛 D.7号筛 E.
乙酰胆碱作用消失主要依赖A.胆碱酯酶水解B.摄取C.排泄D.胆碱乙酰转移酶的作用
下列各句中,加点的成语使用不恰当的一项是()。A. B. C. D.
根据《幼儿园工作规程》幼儿园品德教育的主要内容是( )。A.纪律教育和培养遵纪
房地产开发项目的全寿命周期包括()等阶段。A:项目前期策划 B:规划设计 C
设高温热源的热力学温度是低温热源的热力学温度的n倍,则理想气体在一次卡诺循环中,
最新回复
(
0
)