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
14
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
BenBuchananandA,MagicBookTheTexasteenisdevouringth
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thce
TodayIwanttohelpyouwithastudyreadingmethodknownasSQ3R.Thelett
[originaltext]Nowadays,thereisagrowingawarenessoftheproblemofara
某企业新试制一批高档化妆品用于职工奖励,无同类产品的对外售价,已知其生产成本为2
患儿,女,3岁。玩耍时突然剧烈咳嗽、面色发青,急诊入院。查体:听诊可闻及似金属的
生产经营规模犬、经营品品种多的供应属于()的供应商。A:专家级 B:行业领袖
下列控制图中,能够分析产品纯度计量值的是( )。A.平均值和极差控制图 B.
国内第一只上市型开放式证券投资基金(LOF)是()基金。 A.海富通收益增
拔髓操作不合要求的是A.钻针方向与牙长轴平行 B.由较突出的髓角处穿孔进入髓腔
最新回复
(
0
)