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
2014-08-25
80
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/ZLxO777K
0
成人本科学位英语
相关试题推荐
Itisimportanttothinkaboutthepeopleofadestinationcountryandhowtourismaffectsthem.
Thenewfactoryis______severalhundredcarsaweek.
Theshoppermaywakeacomplaintbecause______.Whencomplaininginperson,youshould______.
PeopleinalargeareamaypossessthesameDNAthreadbecause______.TheMolecularGenealogyResearchGroupisbuildingada
Weshouldtakegoodcareofoureyes______.Havingtwoeyes,insteadofone,isparticularlyusefulfor______.
Penguinslivetogetherinlargeandbusycolonies.Everypairhasalittlepieceofground.Whenapenguinwantstowalkthrough
Jane(had)agreat(dealof)trouble(toconcentrateon)herstudy(becauseof)thenoiseinthenextroom.
CharlesDickens______manywonderfulcharactersinhisnovels.
Pleasegivehisdecisionplentyof______beforeyouacceptit.
When______whyhewalkedinwithoutpermission,hejuststaredatusandsaidnothing.
随机试题
"Cool"isawordwithmanymeanings.Itstraditionalmeaningisusedto【C1】______atemperaturethatisfairlycold.Astheworld
A、睡前服B、饭前服C、饭后服D、空腹服E、顿服驱虫药宜
种植后牙周维护治疗包括
A.自身抗原B.异种抗原C.异嗜性抗原D.肿瘤相关抗原E.肿瘤特异性抗原甲胎蛋白
影像自动相关是指自动识别影像()的过程。
A国一居民总公司在B国设有一分公司,某纳税年度,总公司在A国取得所得600万元,在B国分公司取得所得100万元,分公司适用30%税率,但因处在B国税收减半优惠期而向B国政府实际缴纳所得税15万元,A国所得税税率为25%,按照限额饶让抵免法,则A国应对总公司
下列对外开放口岸中,设立中国公安部授权的口岸签证机关的有()。
教育经验难以找到统一的规则和普遍的模式,说明其具有()。
"RefrigeratorproductioninChinajumpedfrom1.4millionunitsin1985to10.6millionin1998,"accordingtoDavidFridley,a
Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaofwhattheyaregoingtodoa
最新回复
(
0
)