首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Trees are useful to man in three very important ways, they provide him with wood and other products; they give him shade; and th
Trees are useful to man in three very important ways, they provide him with wood and other products; they give him shade; and th
admin
2013-01-03
71
问题
Trees are useful to man in three very important ways, they provide him with wood and other products; they give him shade; and they help to prevent droughts (干旱) and floods.
Unfortunately, man has not realized that the third of these services is the most important. Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire, but, without its trees, its soil became hard and poor.’ When the empire fell to pieces, the home-country found itself faced by flood and starvation.
Even though a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade villagers to see this. The villagers want wood to cook their food with; and they can earn money by selling wood. They are usually too lazy to plant and look after the trees. So, unless the government has a good system of control, or can educate the people, the forests will slowly disappear.
This does not only mean that the villagers’ children and grandchildren will have fewer trees. The results are even more serious, for where there are trees their roots break the soil up allowing the rain to sink in—and also bind the soil, thus preventing its being washed away easily but where there are no trees, the rain falls on hard ground and flows away from the surface, causing flood.
The role of trees is to______.
选项
A、loosen soil
B、keep soil in position
C、harden soil
D、both A and B
答案
D
解析
本题考查考生的总结能力及对具体细节的理解。答案对应文章最后一段的第二句话:The results are even more serious,for where there are trees their roots break the soil up allowing the rain to sink in—and also bind the soil.这句概括树木的作用为松弛、固定土壤。也可走捷径,从连词also看应为两个作用,故选D。
转载请注明原文地址:https://kaotiyun.com/show/ymDO777K
0
成人本科学位英语
相关试题推荐
Newspapersmustnotonlyprovideforthereaderthefacts,pure,______objectivelyselectedfactsbutalsosupplyinterpretation,
Someofthemostimportantconceptsinphysics______theirsuccesstothesemathematicalsystems.
Theproductsofthechemicalindustrymakeamajorcontributiontopresent-daystandardsofliving,andlifetoday______impossib
______thehelpthiscomputermayprovide,itshouldnotbeseenasasubstituteforfundamentalthinkingandreasoningskills.
Aslongaswearealive,wearelearningand,infact,someofourmostimportantlearningtakesplaceoutsideofschool______in
OneofthemostimportantcomponentsofCorporateResourceManagementistorecruitandretainthebestworkforcepossible.Unfo
Whilefashionisthoughtofusuallyinrelationtoclothing,itisimportanttorealizethatitcoversamuchwiderdomain.Iti
随机试题
2010年7月5日,兴盛建筑工程公司承包世纪房地产开发公司的一座高层公寓的建设工程,兴盛公司将玻璃幕墙工程分包给方宇建设施工公司。在施工过程中由于脚手板断裂致使方宇建设施工公司3名施工工人从高空坠落丧生。根据我国《建设工程安全生产管理条例》的规定,此次安全
甲公司是一家上市公司,按照要求在董事会下设立审计委员会。某日审计委员会在开会商讨相关事项时,产生了意见分歧,彼此均坚持自己的意见。此时,应采取的做法是()。
根据税法规定,下列说法正确的有()。
王老师经常鼓励胆小的同学在课堂上大胆表达自己的观点,并对他们的发言行为加以表扬,使其克服胆怯心理。王老师运用的方法是()。
联合国世界卫生组织1989年指出,健康包括躯体健康、___________、社会适应良好和道德健康。
布鲁纳的结构主义课程论强调中小学教师在课程改革中的重要作用。
ItwasinevitablethatanyofPresidentGeorgeW.Bush’sfanshadtobeverydisappointedbyhisdecisiontoimplementhightari
ThornhillSalesIncreased124%inJuneTrimart’sHousingReportgaveThornhillthenumberonerankinginsalesforthemonthof
To:
From:Date:June25Subject:Thankyou.DearMr.Pack,Itwasveryenjoyabletospeakw
HowdoesMr.WilliamsknowMr.Harris?
最新回复
(
0
)