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
2024-01-16
27
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] What is the most important service of trees to man according to the passage?
选项
A、They help him make money.
B、They give him wood and other products.
C、They help him prevent droughts and floods.
D、They give him shade.
答案
C
解析
事实细节题。第二段第一句话说人们没有认识到第三种服务是最重要的,而第一段中提出第三种服务是帮助预防干旱和洪水,因此答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/3366879.html
相关试题推荐
Inthedeadman’sbedroomthepolicefoundseveralimportant______whichpointed
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Eyecontactisimportantbecausewrongcontactmaycreateacommunication______.
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
随机试题
(1)LondonissteepedinDickensianhistory.Everyplacehevisited,everype
Howmenfirstlearnedtoinventwordsisunknown;inotherwords,theorigin
"MomentofReckoning":U.S.CitiesBurnRecyclablesafterChinaBansImportsA)
关于物质组成及其变化,下列说法正确的是:A.汽油挥发和形成水垢均是化学变化 B
在当代,教育被人们视为一种投资、一种人力资本,这是因为教育具有()。 A、政
在风险暴露可能威胁到银行盈利、资本和声誉的情况下,商业银行应当及时向监事会报告。
关于宪法的历史发展,下列哪一选项是不正确的?A、资本主义商品经济的普遍化发展,是
会计科目中的辅助核算一般包括()等。A、部门核算 B、个人往来核算 C、客户
落锤弯沉仪法利用重锤自由落下的瞬间产生的冲击荷载测定弯沉,属于动态弯沉,并能反算
在全世界范围内可以同时为陆海空用户提供连续精确的三维位置、速度和时间信息的导航系
最新回复
(
0
)