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
2011-01-14
58
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 (帝国). 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 threatened 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 a-way easily. But where there are no trees, the rain falls on hard ground and flows away from the surface, causing flood.
It is implied in the passage that the villagers______.
选项
A、want a plentiful supply of trees
B、want firewood badly
C、just want to get money
D、don’trealize the importance of trees
答案
D
解析
转载请注明原文地址:https://www.kaotiyun.com/show/RCJO777K
0
成人本科学位英语
相关试题推荐
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,bythemiddleofthe21stcenturywe______alltheoiltha
HespeaksEnglishwithstrongAmericanaccent,sohe______broughtupintheUnitedStatesorCanada.
Politically,thenationsoftheworldwillbecomemoretightlyintegratedbecauseofrapidlyimprovingtelecommunicationsandtr
Thespeaker,ateacherfromacommunitycollege,addressedasympatheticaudience.Headsnoddedinagreementwhenhesaid,"High
IntheUSA,85%ofthepopulationovertheageof21approveofthedeathpenalty.Inthemanystateswhichstillhavethedeath
Treesshouldonlybepruned(修剪,整枝)whenthereisagoodandclearreasonfordoingsoand,fortunately,thenumberofsuchrea
Thisdidleadtotheconcentrationofindustrialdevelopment______thelocalfields,aphenomenonwellseeninsuchcountriesa
Whatmightdrivingonanautomatedhighwaybelike?Theanswerdependsonwhatkindofsystemisultimatelyadopted.Twodistinc
You______readthatarticleifyoudon’twantto.
随机试题
A.明胶B.苯甲醇C.乳糖D.青霉素E.普鲁卡因醋酸亮丙瑞林对哪种物质过敏者应慎用?
丝极电渣焊用冷却滑块内部必须通水,以避免焊接过程中滑块和焊缝焊合在一起。()
下列哪项不是影响DSA图像质量的因素
患儿,男,4个月。体重5kg。腹泻3天,每日7~8次,蛋花汤样,无腥臭,吃奶后呕吐2次。面色稍苍白,上腭裂,精神较差,皮肤稍干燥,眼窝、前囟凹陷,皮下脂肪减少,皮肤弹性较差,哭有眼泪,四肢末梢较冷,血清钠128mmol/L。当患儿痊愈出院时,对家长
病人入院后调整自己的作息时间和生活习惯以适应医院的规章制度,属于以下哪种适应层次
S国是一个新成立的国家。其成立后,甲国代表向联合国大会提案支持S国成为联合国的会员国;乙国与S国都加入了某区域内的经济合作机构,并且都成为了正式成员方;丙国允许s国在其首都设立商业旅游服务机构;丁国与S国共同参加了某项贸易规则的多边谈判会议。根据国际法的有
当开发区发展目标受区外重大污染源影响较大时,在不能进行选址调整时,要提出对( )进行调整的计划方案,并建议将此计划纳入到开发区总体规划之中。
根据《中华人民共和国行政复议法》的规定,下列各项中,属于公民、法人或者其他组织可以申请行政复议的情形有()。
某餐饮企业为增值税一般纳税人,2017年8月发生如下业务:(1)实现含税销售收入800万元,其中包括顾客现场餐饮消费收入700万元、网上订餐外卖收入100万元。(2)该企业位置优越,某广告公司在其临街墙壁上悬挂广告牌,从广告公司取得含税收入10
Theirlibraryis______ours.
最新回复
(
0
)