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
2025-03-03
11
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 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 oh 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] Why do forests in many parts of the world slowly disappear?
选项
A、New trees are not looked after properly.
B、Many trees have been cut down by man.
C、Man has not paid enough attention to planting trees.
D、All of the above.
答案
D
解析
事实细节题。第二段说明了森林逐渐减少的原因,可知D正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3981442.html
相关试题推荐
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Heis_______animportantcustomernowandhewillbebacktonight.A、callingonB
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Teddy:Gravityisveryimportant.Bob:Whatdoyoumean?Teddy:Gravityisthef
Teddy:Gravityisveryimportant.Bob:Whatdoyoumean?Teddy:Gravityisthef
Themostimportant______ofhisspeechwasthatweshouldallworkwhole-hearted
随机试题
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeli
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage
组织上的独立性只有当首席审计执行官在职能上向董事会报告的情况下才能够有效实现。职
含挥发油类药材,水制时应() A漂洗 B淋洗 C抢水洗 D少泡多润
在房地产区位状况描述中,说明有无停车场、车位数量、到停车场的距离等描述,属于(
目前,我国银行开办的外币存款业务的币种有( )。A.新加坡元 B.英镑 C
下列关于公开招标与邀请招标的说法中,不正确的是()。A:公开招标以发布公告的方式
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
(2018年真题) 【背景资料】 某写字楼工程,建筑面积8640m2,建筑
下列常用光源中平均使用寿命最长的是()A.白炽灯 B.碘钨灯 C.氙灯 D
最新回复
(
0
)