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
Warmer Climate Will Bake Tropical Bugs Global warming could cook tropical insects, with unpredictable knock-on effects, say
Warmer Climate Will Bake Tropical Bugs Global warming could cook tropical insects, with unpredictable knock-on effects, say
admin
2016-08-16
58
问题
Warmer Climate Will Bake Tropical Bugs
Global warming could cook tropical insects, with unpredictable knock-on effects, say researchers who warn that rising temperatures also【C1】______tropical frogs,lizards(蜥蜴).
Temperatures are【C2】______to increase much faster in temperate(温和的)and polar(极地的)regions than in the tropics. But no one had looked at how warming would affect insects and other cold-blooded animals【C3】______had evolved in tropical regions with little temperature variation.
Curtis Deutsch at the University of California at Los Angeles and colleagues analysed data 【C4】______insect survival and reproduction for 38 species in different ecosystems(生态系统), and then estimated how these values would【C5】______with predictions of climate change for the 21st century.
The team found that the reproductive【C6】______of tropical insects tends to peak very close to the temperatures where they normally live, but【C7】______sharply at higher temperatures. This means that cranking up(提高)the heat only a small amount can exert a heavy toll, leaving insects unable tore produce【C8】______enough to keep up their numbers.
Temperate insects reproduce well over a broader range, and do not live as【C9】______to their thermal(热的)limit, so they can reproduce successfully when their climate warms more than in the tropics.
" Tropical insects do very well in a narrow band of temperatures, but move them above that 【C10】______and they die," says team member Josh Tewksbury of the University of Washington in Seattle.
The heart of the【C11】______is temperature tolerance. Temperate-zone insects have evolved to survive the much broader temperature swings of seasonal climates than have their tropical relatives.
The【C12】______appears worse for animals that live in hot stable climate of the lower levels of tropical forests. Lizards in clear areas can find shade to cool down, but those living in the forest are already in the【C13】______, and there’ s not much they can do to get cooler, Deutsch says.
Too few tropical insects have been studied so far to【C14】______if any particular group will be particularly hard-hit, says Tewksbury. Insects play important【C15】______in forest ecology(生态学).
The team are now starting to evaluate how temperature affects ecological interactions of insects with other species, including crops such as African com.
【C11】
选项
A、proposal
B、project
C、thesis
D、problem
答案
D
解析
温带、热带昆虫对温度变化的适应性不同,所以问题的本质就是它们对温度的忍耐性。整个研究过程就是为了解决气温升高对昆虫所造成的威胁问题,所以选problem。proposal意为“提议”;project意为“项目”;thesis意为“论点”,均排除。
转载请注明原文地址:https://kaotiyun.com/show/RBLd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
SomepeoplewouldliketodoshoppingonSundayssincetheyexpecttopickupwonderfularticlesinthemarket.
AImportanceofstayingintellectuallyactiveBEffectsofagingonaperson’srecallabilityCShort-termmemoryversuslong
AImportanceofstayingintellectuallyactiveBEffectsofagingonaperson’srecallabilityCShort-termmemoryversuslong
A.ImportanceofstayingintellectuallyactiveB.Effectsofagingonaperson’srecallabilityC.Short-termmemoryversuslong-te
GlucosecannotbeturnedintoenergyinthebodyWithdiabeticretinopathy,thedamagedbloodvesselsintheretina
MuseumsintheModernWorld1.Museumshavechanged.Theyarenolongerplacesfortheprivilegedfeworforboredvacationerst
WarmPeopleLikelytoKeepColdatBayStayingpositivethroughthecoldseasoncouldbeyourbestdefenseagainstgettingi
WarmPeopleLikelytoKeepColdatBayStayingpositivethroughthecoldseasoncouldbeyourbestdefenseagainstgettingi
EvolutionofSleepSleepisveryancient.Intheelectroencephalographicsenseweshareitwithalltheprimatesandalmost
AttentiontotheDetails1.Attentiontodetailissomethingeveryonecanandshoulddo--especiallyinatightjobmarket.BobCr
随机试题
下列自然资源可能属于国家所有,也可能属于集体所有的是()。
在新中国诞生以前,中国保险市场上存在着三类保险公司,它们是()。
案例某公司张经理在实践中深深体会到,只有运用各种现代科学的管理手段,充分与员工沟通,才能调动员工的积极性,才能使企业充满活力,在竞争中立于不败之地。首先,张经理直接与员工沟通,避免中间环节。他告诉员工自己的电子信箱,要求员工尤其是外地员
乳牙根管治疗中,错误的是
设备的供应方式可分为()。
培养学生抗诱惑力,教师可采用的措施有()。
根据下面材料回答问题。2013年1—2月份工业企业利润比去年同期增加1039亿元,主要是以下六个行业拉动:一是电力行业,实现利润460亿元,比去年同期增长1.5倍,拉动规模以上企业利润增长4.6个百分点。二是石油加工行业,去年同期亏损1
集约型经济增长方式的基本要求是()。
局域网(LAN)指较小地域范围内的计算机网络,一般是一幢建筑物内或一个单位的几幢建筑物内的计算机互连而成的计算机网络。局域网有多种类型,目前使用最多的是:
Childrenmustlearnjustafewbasicrules-beingsafe,being______toothers,andbeingresponsibletothemselves.
最新回复
(
0
)