首页
登录
职称英语
[originaltext] Rainforests circle the globe for twenty degrees of latitude on
[originaltext] Rainforests circle the globe for twenty degrees of latitude on
游客
2024-01-31
69
管理
问题
Rainforests circle the globe for twenty degrees of latitude on both sides of the equator. In that relatively narrow band of the planet, more than half of all the species of plants and animals in the world make their home. Several hundred different varieties of trees may grow in a single acre, and just one of those trees may be the habitat for more than ten thousand kinds of spiders, ants, and other insects. More species of amphibians, birds, insects, mammals, and reptiles live in rainforests than anywhere else on Earth.
Unfortunately, half of the world’s rainforests have already been destroyed, and at the current rate, another 25 percent will be lost by the year 2010. Scientists estimate that as many as fifty million acres are destroyed annually. In other words, every sixty seconds one hundred acres of rainforest is being cleared. By the time you finish listening to this passage, two hundred acres will have been destroyed! When this happens, constant rains erode the former forest floor, the thin layer of soil no longer supports plant life, and the ecology of the region is altered forever. Thousands of species of plants and animals are condemned to extinction and, since we aren’t able to predict the consequences of this loss to a delicate global ecology, we don’t know what we may be doing to the future of the human species as well.
Questions 19 to 21 are based on the passage you have just heard.
19. Where do more than half of all the species of plants and animals live?
20. What is the current rate of destruction?
21. What will not happen if the rainforest continues to be cleared?
选项
A、The land will be eroded by the rains.
B、Many species of plants and animals that depend on the rainforest will become extinct.
C、The future of the human species may be changed.
D、The rainforest will grow, but at a much slower rate.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3408648.html
相关试题推荐
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext](5)ThedryconditionsinCaliforniaaregoodforpeoplewho
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolat
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolat
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolat
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolat
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpi
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpi
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpi
[originaltext]W:Youdon’tlooktoowell.Maybeyoushouldtakethedayofffro
随机试题
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuallyre
Duringexaminationscandidatesarealwayssupposedtostayinseats,keeptheir
Thereare300millionbicyclesinChina.Insomeofthecitiestherearespe
Allthings______,theplannedmeetingwillhavetobeputoff.A、consideredB、are
[originaltext]Thelife-savingvalueofsafetybeltshasbeenfirmlyestabli
建筑工程竣工验收备案的程序包括()。A.满足建设工程竣工验收备案须具备基本条件条
假如不考虑其它因素,以下关于上市公司重大资产重组后再融资的说法正确的有()。
互感器安装时,应将运输中膨胀器限位支架等临时保护措施短时加固,并检查顶部排气塞密
国际劳工公约的准予就业最低年龄公约要求()以下儿童不得从事以获得经济收入为目
旨在通过评估两化融合基础设施和条件建设情况,衡量两化融合基本资源保障的水平与能力
最新回复
(
0
)