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 important ways: they provide him with wood and other products; they give him shade; and they he
Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they he
admin
2015-04-28
78
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. (78)
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 on 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.
Why do forests in many parts of the world slowly disappear?
选项
A、New trees are not looked after properly.
B、Many trees have been cut down by man.
C、Man has not paid enough attention to planting trees.
D、All of the above.
答案
D
解析
第二段说明了森林逐渐减少的原因,可知D正确。
转载请注明原文地址:https://kaotiyun.com/show/ZsRO777K
0
成人本科学位英语
相关试题推荐
Friendisbetterthanfortune.Friendisworsethanpoisoninsome【C1】______.Theabovetwostatementsareoppositeandseemt
Whenahungrymangetsameal,hebeginstothinkaboutanovercoat,whenamanagergetsanewsportscar,abighouseandpleas
TheRedCrossisaninternationalorganization,whichcaresforpeoplewhoareinneedofhelp.AmaninaParis【C1】______who
AboutamonthagoIwaspresentonaseriousoccasionwhereIheardthereadingofawill.Icanrememberonepassagethatparti
Ithoughtitwasgoingtorainbutithas______fine.
Manynewspapersprintedthegovernor’sstatement______wouldsupportataxcut.
MostofthestudentsfeltratherdisappointedattheEnglishparty.Theysaythatit______betterorganized.
OnestudyshowsthatAmericansprefertoanswerwithabrief"Yes","No","Sure",ortheverypopular"Yeah"ratherthanwitha
Auniversitygraduatedescribedasa"respectableandintelligent"womanisseekingprofessionalhelpafterbeingconvictedofs
Runningslowlyfor(some)threemileseveryday(isproved)agood(form)of(exercise).
随机试题
主要处理GATT缔约方全体休会期间事宜的机构是()
一般而言,下列债券的信用风险依次从低到高排列的顺序为()。
在典型的职业生涯通道类型中,描述员工在不同管理层级、技术等级、技能等级上下之间的变动路径是()。
根据合同法律制度的规定,下列各项中,属于无效格式条款的有()。
新疆维吾尔族人善于在盆地和河谷边缘开发______并开挖地下暗沟渠,称作“______”。
采用滚动式编制长期运输计划,其特点和编制方法为()。
Whichvowelisdifferentfromtheothersaccordingtothecharacteristicsofvowels?
A、没有人知道B、小周不让说C、小周不知道D、只有我知道A“谁都不知道”中“谁”表示泛指,即没有人知道他们在说什么,选择A。
FourCharacteristicsofCultureI.Cultureisshared—Region,climateand【T1】_____formasetofvaluesandbeliefs【T1】______—
Whiletyping,Helenhasahabitofstopping______togiveherlongandflowinghairasmooth.
最新回复
(
0
)