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
31
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.
【C12】
选项
A、reason
B、cause
C、level
D、effect
答案
D
解析
句意:对于栖息在气温稳定、炎热的热带森林的较低生态层中的昆虫,其影响更糟糕。根据文章可知,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。上文已经说明气候变暖对温带、热带昆虫的影响,所以此空格说的应该也是影响“effect”,故选D。reason意为“理由”;cause意为“原因”;level意为“层次,水平”,均排除。
转载请注明原文地址:https://kaotiyun.com/show/xBLd777K
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
Weareawareofthepotentialproblems.
CrystalEarOnedayafriendaskedmywifeJillifIwantedahearingaid."Hecertainlydoes,"repliedJill.Afterhearinga
IstheNewsBelievable?Unlessyouhavegonethroughtheexperienceyourself,orwatchedalovedone’sstruggle,youreallyh
Weshouldnevercontentourselveswithalittleknowledgeonly.
MuseumsintheModernWorld1.Museumshavechanged.Theyarenolongerplacesfortheprivilegedfeworforboredvacationerst
MuseumsintheModernWorld1.Museumshavechanged.Theyarenolongerplacesfortheprivilegedfeworforboredvacationerst
WhatIsMarket?Thewordmarketisusedinanumberofways.Thereisastockmarketandanautomobilemarket,aretailmark
DNAFingerprintingDNAisthegeneticmaterialfoundwithinthecellnucleiofalllivingthings.Inmammals(哺乳动物)thestrand
Thedetailsofthecostumeweretotallyauthentic.
Weneedtoidentifythepotentialproblems.
随机试题
患者40岁,白带增多伴外阴瘙痒5天就诊。妇科检查见外阴黏膜充血,阴道壁充血,分泌物黄色、稀薄、泡沫状,草莓样宫颈。此患者的诊断为
有关烧伤创面的早期清创,错误的是
A.清热解毒,凉血化瘀B.养阴清热,安冲止血C.活血化瘀,调冲止血D.清营解毒,散瘀泄热E.补脾益气,固冲摄血产后高热,小腹疼痛拒按,恶露量多,色紫黯,气臭秽,烦躁,口渴引饮,尿少色黄,大便燥结;舌红,苔黄而干,脉数有力。治法应是
某男,60岁,咳喘胸满,但坐不得卧,喉间痰鸣如拽锯,咯痰粘腻难出,舌苔厚浊,脉象滑实。治疗方剂宜首选
2001年9月至2002年5月间,广东省某地戒毒所的领导人及管教人员,与当地“鸡头”建立“合作关系”,违背关押人员本人意愿,强行将多名在该所戒毒的青年女子“出售”给“鸡头”从事卖淫活动,并从中收取“赎金”入单位账后私分给员工用于单位福利。则该戒毒所的管教人
建筑工程实行总承包,()将建筑工程肢解发包。
将3个小球随机地投到4个大盒子中,则一个盒子中至多有一个球的概率为()。
加油加气站内的站房及其他附属建筑物的耐火等级不应低于()级。
中国期货业协会对从业人员的管理应当接受中国证监会的()。
Peoplelikebeingtrusted.Theyareannoyed,angry,orfeelhurtiftheyareregardedwith【C1】______.Theythinkthattheyare【C
最新回复
(
0
)