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
51
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、They live in twenty rainforests.
B、They live in several hundred different varieties of trees.
C、They live in a forty-degree band of latitude.
D、They live in areas where the rainforest has been cleared.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2792380.html
相关试题推荐
[originaltext]M:TheRepublicanPartyinAmericaisopposingstemcellresearch
[originaltext]M:TheRepublicanPartyinAmericaisopposingstemcellresearch
[originaltext]Fifteenyearsago,Japaneseengineersastonishedtheworldwi
[originaltext]Fifteenyearsago,Japaneseengineersastonishedtheworldwi
[originaltext]InJapan,therearespecialplaygroundsfortheelderly.InI
[originaltext]ElvisPresleyisoftenreferredtoasthe"KingofRockandR
[originaltext]ElvisPresleyisoftenreferredtoasthe"KingofRockandR
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
[originaltext]Watchesandclocksseemasmuchapartofourlifeasbreathi
随机试题
He______intheemergencyroomwhenIarrivedatthehospital.A、hasbeentreating
Theworldisplantingavigorousnewcrop:"agro-pessimism",orfearthatma
规模较小的单位工程可不分区,但必须分段施工,这是客观实际情况的反映。
以土地上的房屋抵押的,该房屋占用范围内的国有土地使用权( )。A.不得抵押
A.视觉 B.牵张 C.牵引 D.加压法 E.言语刺激(指令)本体感觉输
下列选项中,诊断子宫内膜异位症的最佳依据是:()A.进行性痛经,子宫
物质构成的奥秘部分内容旨在帮助学生用微粒的观念去学习化学,通过观察、想象、类比、
患者,女,34岁,下楼梯时不慎致胫骨骨折入院,现进行胫骨牵引。护士为其整理床单位
有些行为偏差的青少年思考问题的方式是以个人为中心,认为考试偷抄别人的试卷只是一点
β受体激动剂不能应用于哪些类型的哮喘患者A.心血管功能不全 B.高血压 C.
最新回复
(
0
)