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
45
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.
What eventually happened to the empire according to the passage?
选项
A、Its people died of hunger.
B、It fell to pieces.
C、It became a giant empire.
D、It built many ships with wood.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/CCJO777K
0
成人本科学位英语
相关试题推荐
Themostnoticeabletrendamongtoday’smediacompaniesisverticalintegration—anattempttocontrolseveralrelatedaspectsof
Conventionalwisdomhasitthatconcernfortheenvironmentisaluxuryonlytherichworldcanafford;thatonlypeoplewhoseb
TheUSFoodandDrugAdministration(FDA)istakingstepstoprotectthecountry’sbloodsupply.Peoplegivebloodtothecenter
Withthepossibleexceptionofequalrights,perhapsthemostcontroversialissueacrosstheUnitedStatestodayisthedeathpe
Insomewaystheemploymentinterviewislikeapersuasivespeechbecausetheapplicant(interviewee)seekstopersuadetheempl
ThreeEnglishdictionariespublishedrecentlyalllayclaimtopossessinga"new"feature.TheBBCEnglishDictionarycontainsb
ThreeEnglishdictionariespublishedrecentlyalllayclaimtopossessinga"new"feature.TheBBCEnglishDictionarycontainsb
AnunusualcharacteristicofAmericanuniversitylifeisitscompetitiveness.Institutionsofthesameclass【C1】______forfacul
ShouldWeBantheDogsfromtheCities?(1)有的人认为城市中应该禁止养狗。(2)有的人认为不应该对此加以限制。(3)我的看法。
说实话,直到昨天我才知道他们去上海了。
随机试题
画三相对称uA=Umsinωt、uB=Umsin(ωt-120°)、uC=Umsin(ωt+120°)波形图。
手术切除动物肾上腺皮质后血中ACTH浓度升高,说明糖皮质激素对腺垂体促激素分泌具有的调控作用是
急性梗阻性化脓性胆管炎,最关键的治疗是
心脏壁的结构不包括
患者,缺失,锤造固定桥修复,为基牙。锤造冠的固位体试冠后,制作桥体根据患者的缺牙情况,其桥体(骀)面的颊舌径宽度在理论上应为
已知报告期某单项工程造价为4000万元,其中建安工程造价2400万元,指数为1.08;设备、工器具费用1360万元,指数为1.02;工程建设其他费用240万元,指数为1.05。则该单项工程造价指数为()。
某市卷烟厂为增值税一般纳税人,主要生产A牌卷烟,该品牌卷烟平均不含税调拨价每标准条60元,最高不含税售价每标准条65元。2016年5月发生如下几笔业务:(1)从烟农手中收购一批烟叶,货物已验收入库,支付收购价格80000元和价外补贴8000元(价外补贴与
根据下列资料,回答以下问题。2015年,某省对农民工在本市(区、县)创业的意愿进行了调查,共完成有效样本3000个调查结果如下:在被调查的农民工中,自主创业兴趣意愿很强的农民工人数约为()人。
设二次型f(x1,x2,x3)=xTAx的秩为1,A的各行元素之和为3,则f在正交变换x=Qy下的标准形为____________.
A、Spain.B、France.C、America.D、Germany.C短文提到的TheUnitedStatesalsohasmoreofitspeopleatwork表明,在西方发达国家,美国人比欧洲人工作的时间长,故答案
最新回复
(
0
)