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
2024-01-17
73
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/3369297.html
相关试题推荐
[originaltext]ElevenTalibanfightersattackedanimportantairportinsout
A、Animportantpersoniscomingintohisoffice.B、Hehastoansweranotherphon
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Themostimportantthinginthenewslastweekwastherisingdiscussionin
Itisveryimportantto______carefullytogetasharppicture.A、focusB、objectC
Someofthemostimportantbreakthroughsinengineeringshouldbe______tomathem
Thisisthemostimportantrespect(which)(civilized)mancan(be)distinguishe
随机试题
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinking
Believeitornot,opticalillusioncancuthighwaycrashes.Japaniscase
Mr.Smithmanagedtoeatlunch______havinghadanenormousbreakfast.A、despiteB
Americansdonotgivecooking,"consideredasoneofthefinearts",animpo
某项目经理部组织9名民工进行现浇箱梁支架的预压加载作业。9名民工沿支架一侧排开,
阿托品对眼睛的作用是A.散瞳、升高眼内压和调节麻痹 B.散瞳、降低眼内压和
A.六经传变 B.脏腑传变 C.形脏传变 D.三焦传变 E.卫气营血传变
A.免疫层析试验B.放射免疫分析法C.Dot-ELISAD.ELISPOTE.I
2019年4月10日晚9点,全球多国科研人员合作的“事件视界望远镜”项目在全球六
根据《建设工程监理规范》,专业监理工程师除了审核承包单位试验室的资质等级及其试验
最新回复
(
0
)