首页
登录
职称英语
[originaltext] Human beings are cutting down the world’s rain forests at the
[originaltext] Human beings are cutting down the world’s rain forests at the
游客
2024-02-25
36
管理
问题
Human beings are cutting down the world’s rain forests at the rate of 20 hectares a minute (31) . Every year, 30 million hectares of rain forests are destroyed. And at this rate, most of the world’s rain forests will disappear very soon.
The forests are cut down sometimes for wood, sometimes for farms so that crops and vegetables can be planted and sometimes to make way for roads. But the forests do not re-grow. The soil is very thin and it is soon washed away by the rain. The land is then too poor for the forests to begin to grow again.
There are a number of good reasons for saving the rainforests. Several important drugs in hospitals have come from the rain forests. Also they produce food. The rain forests are rich in wildlife, too. They cover less than 10% of the world’s land, but they contain 40%~50%of the world’s species of plants and animals (29) . The trees supply oxygen. If the rain forests are destroyed, this will change the world’s weather (30) . Temperatures will go up, sea levels will rise and there will be changes in rain and snowfall.
Today, research studies in forests in Panama, New Guinea and Indonesia may help us to find solutions to save the world’s rain forests.
选项
A、People keep cutting down the rain forests.
B、Sea levels rise.
C、The earth’s land is destroyed.
D、Some wild animals are extinct.
答案
A
解析
题目问下面哪个是引起降雨和降雪变化的原因。从短文可知,热带雨林的破坏会引起气温变化和海平面上升,还会导致降雨和降雪的变化。而热带雨林遭到破坏的原因在开头就有交待,主要就是人们乱砍滥伐。
转载请注明原文地址:https://tihaiku.com/zcyy/3482259.html
相关试题推荐
[originaltext]ThesecondMondayofJanuaryisComing-of-AgeDay,anational
[originaltext]W:Itdoesn’tlooklikeyouhavevacuumedthelivingroomorclea
[originaltext]M:Thatisit.Iknowthatitissmallerthanyouwanted,butit
[originaltext]M:Thatisit.Iknowthatitissmallerthanyouwanted,butit
[originaltext]M:Thatisit.Iknowthatitissmallerthanyouwanted,butit
[originaltext]M:Ihavefinishedfillingintheforms.WhichroomshallIhave?
[originaltext]M:Ihavefinishedfillingintheforms.WhichroomshallIhave?
[originaltext]M:Ihavefinishedfillingintheforms.WhichroomshallIhave?
[originaltext]M:Ihavefinishedfillingintheforms.WhichroomshallIhave?
[originaltext]M:Ihavefinishedfillingintheforms.WhichroomshallIhave?
随机试题
【1】[br]【4】[originaltext]Acupuncture
Sincewearesocialbeings,thequalityofourlivesdependsinlargemeasur
关于卵泡的结构,哪项是不恰当的A.透明带出现存原始卵泡 B.卵泡腔形成发生在次
信息系统项目最大的不确定性存在于项目生命周期的()阶段A.概念 B.计划编制
ITIL2011涉及的流程不包含()。A.需求管理 B.战略制定 C
A.清蛋白 B.α球蛋白 C.α球蛋白 D.γ球蛋白 E.β球蛋白不属于
患者,女性,35岁,高血压1年,血压165/105mmHg,血钾3.3mmol/
按照对经济周期变迁的应变程度将行业分为()。A.增长型行业 B.周期型行业
肠鸣音活跃和肠鸣音减弱分别见于哪些情况?
某单代号网络计划如下图(实践单位:天),计算工期是()天 A.8 B.
最新回复
(
0
)