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
2023-06-29
68
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、One acre per minute.
B、One acre per second.
C、One hundred acres per minute.
D、Two hundred acres per hour.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2792381.html
相关试题推荐
[originaltext]Anewstudywarnsthatabout30%oftheworld’speoplemayno
[originaltext]Fromthislookoutweenjoyoneofthemostspectacularviews
[originaltext]Whenmyinterestshiftedfromspacetothesea,1neverexpec
[originaltext]Whenmyinterestshiftedfromspacetothesea,1neverexpec
[originaltext]W:Goodafternoon,Mr.Burke.Didyouhaveagoodlunch?M:Yes,
[originaltext]W:Goodafternoon,Mr.Burke.Didyouhaveagoodlunch?M:Yes,
[originaltext]M:Hello.Ineedtotalkwithsomeoneaboutmydriver’slicense.
[originaltext]M:Hello.Ineedtotalkwithsomeoneaboutmydriver’slicense.
[originaltext]M:Hi,Sophia.I’vejustmovedintoanewapartment.Wouldyouli
[originaltext]M:Hi,Sophia.I’vejustmovedintoanewapartment.Wouldyouli
随机试题
WhatwasJack’swifedoing?[br]WhatdidthewomanthinkofJack?A、Shethought
Weather______,theJohnsonswillholdanopen-airgardenparty.A、permitsB、perm
Accordingtothepassage,itisnoteasytogetseal[originaltext]"Weneed
AHealthyMixofReading,WritingandTechnology
[originaltext]BobbyMoorewasafamousEnglishsoccerplayerwholedtheEn
动机具有引发功能、指向功能和()。A.适应功能 B.信号功能 C.预测功能
“十二五”(2011~2015年)期间,中国与“一带一路”沿线国贸易总额约为
在()阶段,管理者与员工经过充分交流,对员工在本次绩效期间内的工作目标和计划达
关于新型隐球菌生物学性状的描述,错误的是A.为酵母型菌 B.用墨汁负染后镜检可
(2011年真题)设置现浇预应力混凝土连续梁支架预拱度时,不考虑的变形值是( )
最新回复
(
0
)