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
2014-03-13
56
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 oh 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.
What is the most important service of trees to man according to the passage?
选项
A、They help him make money.
B、They give him wood and other products.
C、They help him prevent droughts and floods.
D、They give him shade.
答案
C
解析
事实细节题。第二段第一句话说人们没有认识到第三种服务是最重要的,而第一段中提出第三种服务是帮助预防干旱和洪水,因此答案为C。
转载请注明原文地址:https://kaotiyun.com/show/L4DO777K
0
成人本科学位英语
相关试题推荐
TheCrazefortheGraduateStudyForthispart,youareallowedthirtyminutestowriteacompositionofnolessthan120wo
Everyoneknowsthattaxationisnecessaryinamodernstate.Withoutit,itwouldbeimpossibletopaythesoldiersandpoliceme
Ofgreatsignificanceisthenation-widemovement______theKampucheanpeopleintheirheroicstruggleagainsttheaggressiono
Theyoungmanaskedhisparentsnottoworrybecausehewasfullof______abouthiscareer.
SomepeoplewouldliketodoshoppingonSundayssincetheyexpectto______wonderfulbargainsinthemarket.
SpeakerA:CouldyoupleasetellmewhereIcanfindtennisshoes?SpeakerB:______
Humanbeingsactinadifferentwayfromthatofanimalsjustbecausetheycanspeakwhileanimalscannot.Eventhecleverestan
Myfatherhasclasses______day:Mondays,WednesdaysandFridays.
Thepilotaskedallthepassengersonboardtoremain______astheplanewasmakingalanding.
专家们说,伴随着电视机长大的一代人,在电视机前花的时间太多,以至没有足够的时间学习了。
随机试题
“无尿”是指24小时尿量不超过
葛根最适宜应用于蝉蜕最适宜应用于
A.金匮肾气丸B.参苓白术散C.杞菊地黄丸D.玉女煎E.六味地黄丸消渴,肾阴亏虚宜选用的方剂是()。
设D域:0≤x≤1,0≤y≤x,则()。
背景资料沿海地区某住宅工程,该工程由4栋地上12层,地下1层,结构形式完全相同的单体组成,其中地下室为整体连接地下室。该工程地下水系发达,地下水对钢筋混凝土结构有侵蚀作用。屋面设计为不上人屋面,炉渣保温后细石混凝土封面找坡,最上层敷设SBS卷材防
系统性风险不能通过组合投资实现风险分散;非系统性风险通常可以通过组合投资不同程度地得到分散。()
2004年,李亮获得单位奖励房屋一套。李亮得到该房屋后又将其与张民拥有的一套房屋进行交换。房地产评估机构评估李亮房屋价值35万元,张民房屋价值42万元,协商后李亮实际向张民支付房屋交换价格差额款7万元。税务机关核定李亮房屋价值33.6万元。当地规定的契税税
设α1,α2,…,αn为n个n维列向量,证明:向量组α1,α2,…,αn线性无关的充分必要条件是行列式
已知R1=0x81000000,R0=0x00112233,在小端模式下执行ARM指令STRR0,[R1]之后,内存0x81000002中的值为()。
在数据库技术中,面向对象数据模型是一种______。
最新回复
(
0
)