首页
登录
职称英语
To many web-building spiders, most of【C1】______ are nearly blind, the web i
To many web-building spiders, most of【C1】______ are nearly blind, the web i
游客
2023-11-24
22
管理
问题
To many web-building spiders, most of【C1】______ are nearly blind, the web is their essential window【C2】______ the world., their means of communicating,【C3】______ prey, meeting mates and protecting themselves. A web-building spider【C4】______ its web is like a man marooned on an island of solid rock, totally out of touch and destined to starve to death. So【C5】______ is the web to an orb-web spider’s survival that the animal will continue to construct new webs daily【C6】______ it is being starved.
For 16 days the【C7】______ spider builds completely normal webs. Then, as the animal gets scrawnier, it constructs a wider-meshed web using【C8】______ strands. Such webs would only trap larger prey, which is more【C9】______ from the perspective of a starving spider.
The spider【C10】______ energy by recycling web protein. It simply eats its own web each evening and re-uses it to manufacture【C11】______ silk. In studies with radioactively labeled materials, it【C12】______ that 95 percent of web protein reappeared in【C13】______ web. Most of the energy needed for web-building is used in walking over the strands as they are laid down.
Scientists are【C14】______ by the adaptability of the spider’s highly preprogrammed brain, which is larger【C15】______ its size than the brain of any other invertebrate. If web-building is interrupted, or if some of the【C16】 ______ strands are destroyed, the spider【C17】______ retraces its steps to see where the web is【C18】______ and then finishes building a【C19】______ web. One spider will even finish building the incomplete web of【C20】______ . [br] 【C9】
选项
A、efficient
B、effective
C、available
D、economical
答案
D
解析
此题考查形容词词义辨析。只能捕捉较大猎物的蜘蛛网很显然不会efficient或者effective。这样的网对starving spiders来说,当然比较“经济”(economical)。C项available的意思是“可以利用的”,不合题意。故D项正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3214000.html
相关试题推荐
Nearlyeverycountryinthedevelopedworld,andmoreandmoreinthede
PassageTwo(1)Whenuniversitytuitioncostsnearlytrebledfrom£3,3
PassageTwo(1)Whenuniversitytuitioncostsnearlytrebledfrom£3,3
PassageTwoItwasnearlybedtimeandwhentheyawokenextmorningland
PassageTwoItwasnearlybedtimeandwhentheyawokenextmorningland
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebi
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebi
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebi
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebi
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebi
随机试题
Coffeeincrisis:Thebitterendofourfavoritedrink?A)Aswe
Energyindependence.Ithasaniceringtoit,doesn’tit?Ifyouthinkso,
Whollyasidefromaestheticandmoralconsiderations,fashionisaneconomi
A. B. C. D.
设计条件 1.场地剖面如下页图所示。 2.拟在保护建筑与古树之间建一配套
光纤特性测试内容一般包括()。A光纤线路衰减 B光纤后向散射信号曲线 C多模
智能变电站机构电气闭锁实现设备本间隔内的防误闭锁,不设置跨间隔电气闭锁回路。
光脑,人们也许还很陌生,但制造光脑的尝试,科技界早在20世纪50年代就开始了,直
简述现代企业人力资源管理各个历史发展阶段的特点。
男性,55岁。发热、呕吐、腹泻一天、烦躁不安、意识障碍一小时急诊入院。查体:T
最新回复
(
0
)