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
2025-03-05
24
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 in large numbers, only to find mat 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 rain falls on hard ground and flows away, causing floods and carrying 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,而第一段中提出第二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/3984074.html
相关试题推荐
互联网在我们生活中变得越来越重要了。TheInternethasbecomemoreandmoreimportantinourlife.
Achild’sfirstfiveyearsisimportantasfaraslearningis________.A、touched
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inthedeadman’sbedroomthepolicefoundseveralimportant______whichpointed
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Vitaminsdonotprovideenergy,nordotheyconstructorbuildanypartoftheb
Themostimportant______ofhisspeechwasthatweshouldallworkwhole-heartedl
随机试题
Choosethecorrectletter,A,BorC.[br][originaltext]Nowlistencarefullya
[originaltext]Forthreegroupsofexplorersformedbycollegestudentsandyoun
太平洋亚洲旅行协会的英文缩写是()A.IHA B.ASTA C.PATA
在以下建材中,何者不属于以抗压强度划分等级?()A.砖 B.石 C.水泥
以下关于“风险”的叙述错误的是()。A.风险是人们在生活中经历的一种状况
按照《证券公司合规管理实施指引》的要求,以下关于某证券公司设立合规负责人王某的说
男,57岁。冠心病患者。发生急性剧烈胸痛后,血CPK明显升高,颈静脉充盈,肝大,
小李和小张参加七局四胜的飞镖比赛,两人水平相当,每局获胜概率都是50%。如果小李
科学家们运用有关原理,在其他情况保持不变的条件下,根据心肌梗死病情发展愈厉害,头
适用于碎石土、砂土、粉土、低饱和度的黏性土、杂填土的地基处理方法是()。A.
最新回复
(
0
)