首页
登录
职称英语
What is the most important function of trees? [br] [originaltext] Trees are
What is the most important function of trees? [br] [originaltext] Trees are
游客
2023-11-06
23
管理
问题
What is the most important function of trees? [br]
Trees are useful to man in three very important ways: they supply 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. 2000 years ago a country cut down its trees to build warships to gain itself an empire. It gained the empire but, without its trees, its soil became hard and poor. Even if a government realizes the importance of adequate 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 producing charcoal or selling wood to the townsman. So, unless the government has a good control system, the forests will slowly disappear. 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 from the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well.
选项
A、The three benefits brought by trees.
B、Trees and soil conservation.
C、The various uses of trees.
D、The attitude of the government towards trees.
答案
B
解析
主旨题。文章开篇介绍了树木的3种好处,然后就其中第3个好处展开描述,即保护土壤方面的作用,故选B项。
转载请注明原文地址:https://tihaiku.com/zcyy/3164070.html
相关试题推荐
Sevenpeoplewerearrestedbecause[br][originaltext]PoliceintheIrishR
WhohasMr.Abbasbeenholdingtalkswith?[br][originaltext]ThenewPales
WhatiscommontoallthefilmsproducedinHollywood?[br][originaltext]
WhatiscommontoallthefilmsproducedinHollywood?[originaltext]Hollyw
Whatisthepossiblerelationshipbetweenthemanandthewoman?[originaltext]W
WhichisNOTtrueoftheman?[br][originaltext]M:Oh,hello,LeeDong.Comeo
WhichisNOTtrueoftheman?[originaltext]M:Oh,hello,LeeDong.Comeonin,
Studentdemonstratorsdemanded______.[br][originaltext]Eaton-wieldingpo
Studentdemonstratorsdemanded______.[originaltext]Eaton-wieldingpolicei
KofiAnnanisexpectedtomakeaspeech_______.[originaltext]EastTimoris
随机试题
ChineseCalligraphyCalligraphy,thewritingofchar
【B1】[br]【B11】A、byB、belowC、underD、withC介词题。句意为在同一帐篷下与邻居共用灶台和洗澡设备。应选under。
下列不属于一类高层的是()。A.56m的住宅 B.60m的学校 C.
被称为“中国第一只白天鹅”的舞蹈演员是()A.白淑湘 B.吴晓邦 C.
()是指道德反映社会现实特别是反映社会经济关系的功效与能力A、道德的功能 B
宜饭前服用的药物是A.地西泮 B.阿莫西林 C.红霉素 D.止咳合剂 E
项目目标动态控制的第二步是()。A、收集项目目标的实际值 B、目标调整
B
股动脉注射拔针后局部加压时间是()。A.1~2分钟 B.3~5分钟 C.5
小儿体液免疫特点中,下述哪项是错误的是A、免疫球蛋白包括IgA、IgG、IgM、
最新回复
(
0
)