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
29
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 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晌人类,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/3986026.html
相关试题推荐
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Ibelieveyouhave()someimportantpointsinthereport.A、leftaloneB、leftbeh
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
Inancienttimesthemostimportantexaminationswerespoken,notwritten.I
随机试题
Thereare(36)TVchannels(频道)intheUnitedStates.Americansgetalotof
Themulti-billion-dollarWesternpopmusicindustryisunderfire.Itisbein
Theobjectinthesentence"ShewishestolearnEnglishfromyou"isA、she.B、Eng
[originaltext]M:MrsHunt,areyousureitisthemanwhoyousawinlastnight
建设工程勘察、设计文件中规定采用新技术、新工艺、新材料,可能影响建设工程质量和安
以下叙述中,正确的是()。A.编译正确的程序不包含语义错误 B.编译正确的
NMPA推荐首选的生物等效性评价方法为:A.药物代谢动力学评价方法 B.药物
干粉灭火系统检查中,下列属于月检的是()。A.干粉储存装置部件 B.防护区及
根据道氏理论,股价的趋势的类型不包括()。A:主要趋势B:次要趋势C:长期趋
(2018年真题)在我国,从支出角度计算GDP,私人购买的住房支出属于()
最新回复
(
0
)