首页
登录
职称英语
Trees are useful to man in three important ways: they provide him with wood
Trees are useful to man in three important ways: they provide him with wood
游客
2025-03-07
35
管理
问题
Trees are useful to man in three important ways: they provide 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. In his eagerness to make money from trees, he has cut them down inlarge numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil — allowing the rain to sink in — and also bind the soil, thus preventing it from being washed away easily: but where there are no trees, the ran falls on hard ground and flows away, causing floods and canying away the rich top-soil. When all the top-soil is gone, nothing remains but worthless desert.
Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It set up the empire but, without its trees, its soil became poor and it grew weak. When the empire fell to pieces, the home country found itself faced with floods and starvation. [br] What is the most important service of trees to man according to the passage?
选项
A、They help him make money
B、They give him wood and other products
C、They help him prevent droughts and floods
D、They give him shade
答案
C
解析
事实细节题。第二段第一句话说人们没有认识到第三种服务是最重要的,而第一段中提出第三种服务是帮助预防干旱和洪水,因此答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/3986022.html
相关试题推荐
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
随机试题
非同步电复律可在任何时间放电,仅用于转复()。
下列属于阔叶树材细木工板外观分等的允许缺陷()。A.室外管网垫层 B.排钉孔
下列属于水的化学性质的有( )。A.温度 B.透明度 C.矿化度 D.颜色
以下国务院批准的全国21座重点宫观中,位于陕西省的3处宫观是()A.楼观台 B
分布于下肢外侧后缘的是A.足少阴肾经 B.足厥阴肝经 C.足阳明胃经
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
(2017年11月)社会保险行政部门应当自受理工伤认定申请之日起( )内作出工
下列关于《建筑地基基础设计规范》中压缩摸量当量值的概念中,哪些选项是错误的()
海港码头工程初步设计阶段勘察,码头不在岸坡明显地区,在确定勘探工作量时,其勘探线
期权费是指期权的执行价格。( )
最新回复
(
0
)