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; they h
Trees are useful to man in three very important ways: they provide him with wood and other products; they give him shade; they h
admin
2012-07-17
19
问题
Trees are useful to man in three very important ways: they provide him with wood and other products; they give him shade; they help to prevent drought and floods.
Unfortunately, in many parts of the world, 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. It gained the empire but, without its trees, its soil became hard and barren (贫瘠的,荒芜的). When the empire collapsed, the home country found itself faced by floods and starvation.
Even where a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with; and he can earn money by making charcoal or selling wood to the townsman. He is usually too lazy or too careless to plant and look after new trees. So, unless the government has a stern system of control, or can educate the people, the forests will slowly disappear.
This does not only mean that the villagers’ sons and grandsons 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 away easily, but where there are no trees, the rain falls on hard ground and flows away on the surface, causing floods and carrying away with it the rich top-soil, in which crops grow so well. When all the top-soil is gone, nothing remains but worthless desert.
Which of the following is the main idea of the whole passage?
选项
A、There are three ways in which trees are important to human beings.
B、Providing man with shelter is the most important role the trees play.
C、Supplying man the wood and warship is the most important way the trees have.
D、Assisting in stopping drought and floods is the most important role the trees play.
答案
D
解析
本题问下面哪个选项是文章的主题。利用浏览式阅读法通读全文内容,尤其是文章第一段指出树木对人类来讲有三方面的意义:提供木材和其他产品;提供阴凉;帮助防止干旱和洪水。但第二段及后文均是围绕第三个意义来叙述的。因此本题的正确答案应选D“树木的最重要的作用是可以帮助人们阻止干旱和洪水”。
转载请注明原文地址:https://kaotiyun.com/show/j6XO777K
0
在职攻硕英语联考
相关试题推荐
Toomuch______canpossiblyleadtounhappiness,eventothoughtsofsuicideasfewpeoplehavethecouragetoanalyzethemselves
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
ThehistoryofAfrican—Americansduringthepast400yearsistraditionallynarrated【C1】______anongoingstruggleagainst【C2】___
TheworkersofspaceshuttleDiscoverygotintothebackoftheshuttletolookfor______intheelectronicsthatsenddatafrom
______Irealizedtheconsequences,Iwouldneverhavecontemplatedgettinginvolved.
Itwillbesafertowalkthestreetsbecausepeoplewillnotneedtocarrylargeamountsofcash.Virtuallyallfinancial______w
ThereisnogreaterpowerintheworldtodaythanthatwieldedbythemanipulatorsofpublicopinioninAmerica.【T1】Nokingor
随机试题
驾驶人连续驾驶4小时以上,停车休息的时间不得少于多少?
关于“妊娠、分娩和产褥期(O00-099)”分类要点正确的是
患儿,女,5岁。面色萎黄,形体消瘦,不思饮食,烦躁啼哭,毛发稀疏,大便如米泔,舌苔黄腻,脉细。治疗应首选()
"腹中积块,固定不移,胀痛有定处,面黯形瘦,肌肤甲错,时有寒热"相应舌脉为
环境影响评价要求实行环境与经济协调发展的政策,其主要含义被归纳为“三建设、三同步、三统一”。其中“三同步”是指()。
会计职业道德修养的含义包括()。
某市甲独立矿山2018年4月发生如下经济业务:(1)开采原煤4万吨将其中1万吨原煤直接对外销售给乙公司,乙公司应付不含税金额200万元(不包括到车站、码头等的运输费用),甲煤矿采取分期收款方式,销售合同规定当月收取120万元,剩余款项下月收取。
我们每一个人,终其一生,都在不断受到新环境的生存挑战,我们必须不断增长智慧和能力。由于新环境的生存挑战完全不可预测,因此,我们的教育也完全不可预设,不可僵化,不可束缚,而应该成为最能够激发人智力的一种训练。如果不顾日新月异的社会发展和环境变化,一味执行因循
设四元齐次线性方程组若该方程组仅有零解,则λ().
Icouldn’tstopcrying.Monthsoflateeveningsanddemandingtravelhad【C1】______myprofessionalexterior.Itriedto【C2】______
最新回复
(
0
)