首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、The land will be eroded by the rains. B、Many species of plants and animals that depend on the rainforest will become extinct.
A、The land will be eroded by the rains. B、Many species of plants and animals that depend on the rainforest will become extinct.
admin
2017-11-08
37
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://kaotiyun.com/show/mma7777K
0
大学英语四级
相关试题推荐
A、Shewillgobackhomesoon.B、Sheneedshelpfromtheman.C、Shefeelsbadaboutthedelay.D、Shewantstocanceltheflight.
A、Thewomanhadbettercallhomenow.B、Thewomanneedstosavemoneyregularly.C、Thewomanhasspenttoomuchshopping.D、The
TheEndofAIDS?A)OnJune5th1981America’sCentresforDiseaseControlandPreventionreportedtheoutbreakofanunusualfor
A、Whichfoodcouldbesold.B、Howfoodsmustbedescribed.C、Whencertainfoodsareavailable.D、Whatnutrientsfoodshouldcont
Whatdodietingandenergypolicyhaveincommon?TheSnackWelleffect.Thenamecomesfromthosetastylittlecookiesthatare【
SevenWaystoCreateaHappyHouseholdA)Everyfamilyisdifferent,withdifferentpersonalities,customs,andwaysofthin
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputerswork,justasweexpectthematleasttounderstand
A、Heisthemanageroftheapartment.B、Heisthewoman’shusband.C、Heistheowneroftheapartment.D、Heisthewoman’sagent
A、Thepaintingwasmakingfunofpeople.B、ThepaintingwasasymboloftheUS.C、Thepaintingexpressedanunderstandingofpeo
"Youneedanapartmentaloneevenifit’soveragarage",declaredHelenGurleyBrowninher1962bestsellerSexandtheSingle
随机试题
焊芯专用钢丝分为碳素结构钢、合金结构钢和()钢三大类。
模型灌注后最佳的脱模时应控制在A.10~20minB.30~40minC.50minD.1~2hE.2.5h
下列关于个人决策和群体决策的比较中,()是正确的。
甲开发公司按法定最高年限取得了某综合用地出让土地使用权,在取得土地使用权2周年时建成综合楼一座,底层为商铺、二层以上为办公用房,此时办公用房占用的土地使用权的剩余使用年限为()年。[2008年考试真题]
已知,2015年某地区第一产业的增加值为247亿元、中间投入为96亿元;第二产业增加值为1020亿元;第三产业增加值为827亿元。根据上述资料请回答:增加值的计算方法有()。
商业票据市场的特征有()。
目前国内关于个人信息保护的法规分散,既缺乏对个人信息的界定,也缺乏可操作的标准,执法主体缺位,执法力度不足。对于个人信息保护的难题,业内讨论认为主要有三方面:保护程度界定,难以区别正当或非法使用个人信息;信息泄露取证,难以确定个人信息是在哪个环节发生泄露;
真正重理的人,决不应轻文;______,真正重文的人,也决不应轻理。______志趣不同,在某一方面一般的认真学习,而在另一方面特别多下工夫学习,这种情形是自然现象。______,“重”一样,“轻”一样,______是不正常的思想和心理的反映。填入
简述理想师生关系的特点。
微软公司、OMG组织、SUN公司所提出的软件构件的标准分别是(18)。
最新回复
(
0
)