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
2024-01-18
44
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 does the author tell us in this passage?
选项
A、How trees help prevent droughts and floods.
B、The relationship between trees and man.
C、How an empire fell to pieces in ancient times.
D、A story of trees.
答案
A
解析
概括主旨题。文章主要是说树木对人类的作用,然后论述树木怎样影响人类,也就是作者想要告诉人们树木可以帮助预防洪水和干旱。
转载请注明原文地址:https://tihaiku.com/zcyy/3372484.html
相关试题推荐
Adviceshouldbeprovidedfreeto______needsit.A、whomB、whoeverC、whoD、nomatt
每个人都知道,学习对一个人的成长是非常重要的。Everyoneknowsthatlearningisvital/veryimportanttoo
Itwasfoolishofhimto______hisnotesduringthatimportanttest;now,hegot
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
It’simportanttolocateindustriesinareaswhereasupplyofrawmaterialsis_
Inthedeadman’sbedroomthepolicefoundseveralimportant______whichpointed
Thecompanyprovidesguidanceandhelpsothatyoucandecorateyourhouse______
Thegoals______hehadfoughtallhislifenolongerseemedimportanttohim.A、fo
Teddy:Gravityisveryimportant.Bob:Whatdoyoumean?Teddy:Gravityisthef
随机试题
[img]2018m9s/ct_etoefz_etoeflistz_201808_0035[/img][br]Listenagaintopartof
由于这原因,在过去四十年间人们对这一课题进行了大量的理论研究工作。Forthesereasonsagreatdealoftheoretical
About25millionautoaccidentsoccurintheUnitedStateseachyear.Appro
某单层商场,耐火等级为二级,总建筑面积为5000㎡,建筑内设置湿式自动喷水灭火系
保健食品又称功能食品,具有哪些保健功能()。A.调节人体生理功能 B.增强
2006年春节期间,湖南省共接待旅游者265.44万人次,比上一年同期增长14.
A. B. C. D.
关于公积金个人住房贷款的贷后管理,下列说法错误的是()。A.在贷款催收中,逾期
创造性与智力呈简单的线性关系。
年末结账后,下列会计科目中一定没有余额的有()。A、本年利润 B、制造费用
最新回复
(
0
)