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
考研
[A] This re-grown "secondary" forest is crucial to the pair’s analysis. Within a few decades of land being abandoned, half of t
[A] This re-grown "secondary" forest is crucial to the pair’s analysis. Within a few decades of land being abandoned, half of t
admin
2023-03-22
92
问题
[A] This re-grown "secondary" forest is crucial to the pair’s analysis. Within a few decades of land being abandoned, half of the original biomass has returned. Depending on what else is nearby, these new forests may then be colonized by animals and additional plants, and thus support many of the species found in the original forest.
[B] Elizabeth Bennett, of the Wildlife Conservation Society, an American conservation group, agreed and mentioned that for large birds and mammals, uncontrolled hunting for food and for trade is causing a phenomenon known as "empty-forest syndrome". She said that although many forests look healthy when viewed from a satellite, they are actually falling silent because many of their large animals have been removed for subsistence or profit.
[C] What everyone agreed, though, was that climate change is a threat. Even the optimistic Dr. Wright is worried because many tropical species evolved in an environment that has very little temperature variation, they are not equipped to cope with an increase of as little as 3°C, which is the sort of change that many climate scientists predict. He said that by the end of the century, 75% of tropical forests will be warmer than today, and what will remain in these hot, wet places is unknown.
[D] A rare piece of good news from the world of conservation: the global extinction crisis may have been overstated. The world is unlikely to lose 100 species a day, or half of all species in the lifetime of people now alive, as some have claimed. The bad news, though, is that the lucky survivors are tiny tropical insects that few people care about. The species that are being lost rapidly are the large vertebrates that conservationists were worried about in the first place.
[E] Dr. Wright and Dr. Muller-Landau therefore reckon that in 2030 reasonably unbroken tropical forest will still cover more than a third of its natural range, and after that date its area—at least in Latin America and Asia—could increase. Much of this woodland will be secondary forest, but even so they suggest that in Africa only 16-35% of tropical-forest species will become extinct by 2030, in Asia, 21-24% and, in Latin America, fewer still. Once forest cover does start increasing, the rate of extinction should diminish gradually.
[F] This new view of the prospects for biodiversity emerged from a symposium held this week at the Smithsonian Institution in Washington, DC, but the controversy over how bad things really are has been brewing since 2006. That was when Joseph Wright of the Smithsonian Tropical Research Institute in Panama and Helene Muller-Landau of the University of Minnesota first suggested that the damage might not be as grim as some feared. They reasoned that because population growth is slowing in many tropical countries, and people are moving to cities, the pressure to cut down primary rainforest is falling and agriculturally marginal land is being abandoned, allowing trees to grow.
[G] There are, however, two criticisms of this analysis. The first questions whether the raw data about forest cover are a good indicator of biodiversity, at least for big animals. William Laurance, a colleague of Dr. Wright’s, pointed out to the symposium that birds and mammals are more vulnerable to alterations in their habitat than are insects and other small animals. His data suggest that even in some of the world’s best-protected primary forests, these species face severe pressures.
【D6】 → 【D7】 → 【D8】 → 【D9】 → G → 【D10】
【D7】
选项
答案
F
解析
上一段(即D)提出“全球物种灭绝的危机可能被夸大”的观点,F首句的This new view of the prospects for biodiversity即指代上述观点。其中,new与上段的rare相呼应;此外,F后面的部分还提到,提出这个new view的两名博士认为物种灭绝可能不像某些人担心的那么严重(the damage might not be as grim as some feared),也与上段观点吻合。故F应紧跟在D之后。
转载请注明原文地址:https://kaotiyun.com/show/3KMD777K
0
考研英语一
相关试题推荐
随着信息技术的发展,电子商务(E-business)、电子银行(E-banking)、电子政务(E-government)正在走进我们的生活。许多人购物和旅行时经常使用信用卡。信用卡作为电子货币的一种,在使用过程中执行的货币职能有()
[A]Askingforparentalinvolvement[B]Settingupsmallgroups[C]Makingclassroomeventspredictable[D]Extendin
[A]Askingforparentalinvolvement[B]Settingupsmallgroups[C]Makingclassroomeventspredictable[D]Extendin
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’s
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’s
AsValentine’sDayapproaches,manysinglepeoplebegintofeelalittlesorryforthemselves.Onaday【C1】________bycouples,
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
Britain’sprivateschoolsareoneofitsmostsuccessfulexports.Thechildrenofthewealthy【C1】________tothem,whetherfromC
LastSeptember,theU.S.governmentannouncedthatitsbirthratefellto"anotherrecordlow".Morallyspeaking,there’snothing
A)Vistawillalsohaveconsumerappeal,althoughperhapsnotasmuchaspreviousreleasesofWindows.WithVista,Microsoftis
随机试题
狗最初对圆形和椭圆形做出同样的反应,经训练后仅对圆形做出反应。这都是条件反射的()。
不含共轭结构的醛和酮与2,4-二硝基苯肼生成的腙的颜色一般为()。
Whois______personnelatpresent?
下列收集的资料,哪项属于客观资料()。
下列关于乙与丙签订的《内部承包协议》的说法,何者正确?下列关于合同解除的说法,何者正确?
正常成交价格的形成条件有()。
加大环境治理力度,要以()为核心,形成政府、企业、公共共治的环境治理体系。
建立和实施职业安全健康管理体系既是实现系统化、规范化的职业安全健康管理的过程,也是企业所有员工建立()的理念、贯彻“安全第一、预防为主”方针的过程。
某企业获100万元的周转信贷额度,约定年利率为10%,承诺费率为0.5%,年度内企业实际动用贷款60万元,使用了12个月,则该笔业务在当年实际的借款成本为()万元。
下列各选项中,不属于序言性注释的是()。
最新回复
(
0
)