首页
登录
职称英语
To many web-building spiders, most of 【C1】______ are nearly blind, the web
To many web-building spiders, most of 【C1】______ are nearly blind, the web
游客
2024-10-25
39
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 reuses 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:http://tihaiku.com/zcyy/3816616.html
相关试题推荐
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,theweb
随机试题
By1830theformerSpanishandPortuguesecolonieshadbecomeindependentnat
Quittingsmokingishardenoughonitsown,butstudiesshowthechallengei
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
说明企业财务状况或经营成果变动趋势的方法是()。A.趋势分析法 B.横向比较
基本预备费是指在()范围内难以预料的工程费用。A.可行性研究及投资估算 B
严寒地区使用的钢材,应选用()。A.脆性临界温度低于环境最低温度的钢材 B.
导致高危妊娠的因素不包括()。A.孕妇年龄<16岁 B.有异位妊娠病史 C
某地区2001年到2006年的科研经费分别是88.08,102.36,128
合理情绪想象技术的具体步骤包括()。多选A.使求助者在想象中进入产生过不适当
患者,男性,68岁,反复咳嗽、咯痰。痰中带血半月。体温38.1℃,WBC1210
最新回复
(
0
)