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
52
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
His________behaviormadeeveryonenervous.Hewasalwaysrushingtoopendoors
Kathywasauniversitystudent.Likemoststudentsshehadverylittlemone
牵正散的组成是A.全蝎、川芎、自附子 B.白附子、蜈蚣、全蝎 C.白附子、僵
产后出血导致失血性休克时的补血原则是()。A.补充同等失血量 B.补充1/2失
属于阴道杀精药的是A.左炔诺孕酮 B.氯地孕酮 C.米非司酮 D.壬苯醇醚
(2021年真题)下列各项中,应计入产品成本的有()。A.产品售出后发生的维修
隐患内容中,未按审批的专项施工方案施工属于( )类别重大隐患。A.工程管理
水利工程施工监理专业乙级资质的监理单位,可以承担下列()的监理业务。A.大(2)
治疗脑水肿应首选下列哪种药物A、呋塞米 B、螺内酯 C、氢氯噻嗪 D、甘露
施工进度计划调整的内容,不包括()调整。A.工作关系 B.工程量 C.资源
最新回复
(
0
)