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
2023-11-19
45
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] 【C12】
选项
A、was found
B、found
C、has found
D、had found
答案
A
解析
此题考查被动语态。首先,根据形式主语判断出这里应该使用被动语态。其次,从句首的In studies with radioactively labeled materials以及后面的reappeared可以看出,应该使用过去式。因此,A项符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3202057.html
相关试题推荐
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
随机试题
______thedaywenton,theweathergetworse.A、WithB、SinceC、WhatD、AsD本题考查从句。
MostofushaveanimageofastandardEnglishinpronunciation,andverycom
Mentalillnessmayberesultedfrom______.[br]Asforthemedicationofsomes
[originaltext]Ourenvironmentisbeingpollutedfasterthannatureandman’
假如一家银行的外汇敞口头寸为:日元多头150,马克多头400,英镑多头250,法
2020年1—12月,我国稀土及其制品出口量环比上升的月份有几个?A.5
4岁以上小儿先天性髋脱位的治疗可用 A.带蹬吊带法B.手法复位,石膏固定
A.中国食品药品检定研究院 B.CFDA行政事项受理服务和投诉举报中心 C.
治血热风燥型白疙和血虚风燥型白疕,宜选用的中成药是A.消风止痒颗粒 B.消银颗
()是指某项测评指标(因素)在决定该项目成功与否的各因素中所占的权重,这一权重
最新回复
(
0
)