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
55
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
Somepeopleviewthefindingswithcaution,notingthatacause-and-effectrelationshipbetweenpassivesmokingandcancerremai
______thatasocietyliketheNationalSocietyforthePreventionofCrueltytoChildrenisstillneededinacivilizedcountry?
Withunemploymentrisingandhousingcostsstillhigh,citiesaroundthecountryareexperiencinganewandsuddenwaveofhomel
Woman:It’sawfullydarkforfouro’clock.Doyouthinkit’sgoingtorain?Man:You’dbetterdosomethingaboutthatwatchofy
ForgetHarryPotter.Nomatterthatthefilmaboutthisschoolboywithmagicpowersbrokeallbox-officerecordsonitsopening
Withthepossibleexceptionofequalrights,perhapsthemostcontroversialissueacrosstheUnitedStatestodayisthedeathpe
Thequestionsofwhetherwarisinevitableisonewhichhasconcernedmanyoftheworld’sgreatwriters.Beforeconsideringthis
IntheUSA,85%ofthepopulationovertheageof21approveofthedeathpenalty.Inthemanystateswhichstillhavethedeath
他认为我们不应该再在这个问题上多花时间了。
直到昨天晚上他才改变了他的主意。
随机试题
下列关于麻疹治疗护理的注意事项中,错误的是
导致尿路感染最常见的致病菌是
患者女,32岁,初孕。孕7月出现双下肢水肿,经休息不消退,仅1个月出现头晕、头痛,自服止痛药缓解。无诱因突发阴道流血量同月经,伴持续性腹痛,急诊来院。体格检查T37℃,心率100/min,Bp160/100mmHg,心肺检查未见异常,妊娠腹型。诊断:妊娠期
根据《建设工程项目管理规范》(GB/T50326—2006),项目实施前,企业法定代表应与施工项目经理协商制定()。
某毛纺厂从澳大利亚进口羊毛20t,双方约定标准回潮率为11%,而实测得该批羊毛的实际回潮率为25%,这样,该批羊毛的公量应为()。
中国近代第一所国人自办的女子教育机构是()
Peopleare,onthewhole,pooratconsideringbackgroundinformationwhenmakingindividualdecisions.Atfirstglancethismigh
有以下程序#include<stdio.h>intfun(){staticintx=1;x+=1;returnx;}main(){inti,s=1;for(i=1;i<=5;i++)s+=fun();printf("%
Sixyearslater,inanabout-face,theFBIadmitsthatfederalagentsfiredteargascanisterscapableofcausingafireatthe
CouldFoodShortagesBringDownCivilization?A)FormanyyearsIhavestudiedglobalagricultural,population,environmenta
最新回复
(
0
)