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
6
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/3987046.html
相关试题推荐
Themostimportant________ofhisspeechwasthatweshouldallworkwhole-hear
Theconnectionbetweenreadingandwritingisastrongandimportantone,【C1
Theconnectionbetweenreadingandwritingisastrongandimportantone,【C1
Theconnectionbetweenreadingandwritingisastrongandimportantone,【C1
Theconnectionbetweenreadingandwritingisastrongandimportantone,【C1
Heis______animportantcustomernowandhewillbebacktonight.A、callingonB、
______thatMartinhadpassedtheimportantexam,hisfriendscalledtocongratul
Toplayfairisasimportantas.A、weplaywellB、playingwellC、toplaywellD、
你知道今天报上有一篇重要的文章吗?Doyouknowthatthereisanimportantarticleintoday’snews
(Itis)(extremely)important(for)anengineer(toknow)touseacomputer.A、It
随机试题
The"langue&parole"conceptwasdevelopedby______.A、deSaussureB、EdwardSap
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
下列经济效果评价方法中,属于动态评价方法的是()。A:净现值法 B:增量投资
第一产程是A.自规律宫缩到胎儿娩出 B.自规律宫缩开始到宫口开全 C.宫口开
下列项目中,应纳入A公司合并范围的有( )。A.A公司持有被投资方半数以上投票
下列各项中,属于消费税征收范围的有()。A.烟叶 B.烟丝
Thechangeinthatvillagewasmiraculou
下列各句中没有歧义的一句为()。 A她觉得天地是那么广阔,心里是那
某公司目前资本结构为:总资本2500万元,其中债务资本1000万元(年利息80万
背景 某中型水库主坝为黏土心墙砂壳坝,心墙最小厚度为1.2m,其除险加固的主要
最新回复
(
0
)