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
2024-01-17
30
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/3371516.html
相关试题推荐
[originaltext]Thewaytocomplainistoactbusiness-likeandimportantIf
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext]ElevenTalibanfightersattackedanimportantairportinsout
A、Animportantpersoniscomingintohisoffice.B、Hehastoansweranotherphon
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
随机试题
_________hiscourage,thebattlewouldhavebeenlost.A、ButB、IfC、WithD、Butfo
[originaltext]Igrewupinasmalltown.Myfatherraisedchickensandran
Inthe1980s,homeschoolingmadeacomebackintheU.S.whenreligiouslycon
关于手持电动工具的安全使用要求,下列叙述正确的是()。A.空气湿度小于75%的
制作标志底板的铝合金板材的力学性能应满足《一般工业用铝及铝合金板、带材第2部分:
订立合同必须经过一定的程序,每个合同都必须经过的程序是()。A.担保和承诺B
关于合同的分类,下列表述正确的是哪一个?A.张三与李四约定,张三向李四借款10万
(2017年真题)雷公藤中毒,严重者主要表现为( )A.出现各种出血症状,严重
(2015年真题)投资估算的主要工作包括:①估算预备费;②估算工程建设其他费;③
下列关于模板、支架的拆除说法错误的是()A.模板、支架的拆除应遵循后支先拆
最新回复
(
0
)