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
63
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. (78)
In his eagerness to make money from trees,he has cut them down in large 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 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
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/3373445.html
相关试题推荐
Themostimportantthingtodo______thepollutionassoonaspossible.A、aregot
ProfessorSmithissaid______anotherimportantdiscoveryinchemistry.A、tomake
(Let’snot)wastelimeon(mattersofnoimportant).Wehaveother(vital)probl
Whenhelearnedoftheusefulnessofforeignlanguages,he______studyingEnglish
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
______rapidlybythebody,sugarprovidesaquickenergysource.A、DigestedB、Dig
Itwasfoolishofhimto______hisnotesduringthatimportanttest;now,hegot
—Youhaven’tfailedintheexam,haveyou?—______.Theexamissoimportantto
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
随机试题
Poetsdieyoung—youngerthannovelists,playwrightsandotherwriters,aU.S
[originaltext]Today,wearegoingtocontinueourdiscussionofsocialinse
"Tinalooksespeciallyprettytonight.""Yes,shealwayslooksherbestin_
高性混凝土配合比设计应符合下列规定()A.粗骨料最大粒径不宜大于25mm B.
下列肿瘤中,间充质为恶性成分的是A.恶性成釉细胞瘤 B.原发性骨内癌 C.牙
与领导者比较,管理者的主要特点是()。A.正确地做事 B.制订计划和预算
某管道如图所示,当管道阀门F完全关闭时,A点处的压力表读数为0.5at(工程大气
癃闭水蓄膀胱急症,当急通小便,可用的治疗措施有( )。A.取嚏 B.探吐
由于可产生结晶尿,服用后需要大量饮水的是A.氨茶碱 B.依替膦酸二钠 C.苯
甲公司在2017年度的会计利润和应纳税所得额均为-300万元,按照税法规定允许用
最新回复
(
0
)