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
A、To survive in the ever-changing weather. B、To facilitate their travel over long distances. C、To adapt themselves to a particul
A、To survive in the ever-changing weather. B、To facilitate their travel over long distances. C、To adapt themselves to a particul
admin
2022-03-24
30
问题
The saying "blind as a bat" simply isn’t correct. The truth is that all 1,100 bat species can see and often their vision is pretty good, although not as excellent as other night-hunting animals.
There are two main groups of bats, which are believed to have evolved independently of each other, but both from a common ancestor. The first group, known as "mega bats", are mostly medium-sized or large bats who eat fruits, flowers, and sometimes small animals or fish. These species have distinctive visual centers and big eyes. They use senses of vision and smell to capture their prey. For example, Flying Foxes not only see well during daylight, but can also distinguish colors. They actually rely on their daylight vision and cannot fly during the night with no moonlight. The second group, called "micro bats", are smaller in size and mostly eat insects. These species use echo location to find their way and identify food. Scientists have proven that despite their poorly developed small eyes, these bats still can see during the day. When we consider the nightly lifestyle of these bats, we will see they have to be sensitive to the changing light levels because this is how they sense when to start hunting. Moreover, vision is used by micro bats to travel over long distances beyond the range of echo location.
So the truth is, there are no bats which are naturally blind. Some species use their sense of hearing more than their eyes as a matter of adaptation to a particular lifestyle, but their eyes are still functional.
9. What do we learn about mega bats?
10.How do micro bats find their way and identify food?
11.Why do some species of bats use their sense of hearing more than their eyes?
选项
A、To survive in the ever-changing weather.
B、To facilitate their travel over long distances.
C、To adapt themselves to a particular lifestyle.
D、To make up for their natural absence of vision.
答案
C
解析
文章结尾处提到,有些种类的蝙蝠为了适应特定的生活方式,更多地使用听觉而不是视觉。但它们的眼睛仍然能看见。因此选项C正确。选项A中“不断变化的天气”文中没有提及,故排除;文章结尾处提到,微型蝙蝠使用视觉进行长途飞行,选项B与问题相反,故排除;文章说蝙蝠与我们所了解的不一样,它们的视力通常非常好,没有天生看不见的蝙蝠,选项D与文章内容相反,故排除。
转载请注明原文地址:https://kaotiyun.com/show/CAx7777K
0
大学英语六级
相关试题推荐
A、Theimprovedmentalfunctioning.B、Theincreasedsusceptibilitytoheartdisease.C、Thespeedingupofbloodcirculation.D、Th
A、Havingarestfrequentlyduringtheday.B、Thelackofsleeponweekends.C、Thelackofexerciseintheevening.D、Eatingchee
Forthispart,youareallowed30minutestowriteashortessayonstressmanagement.Youressayshouldincludetheimportanc
中国武术是中国传统文化的一部分。武术的创立与发展主要是为了自卫和生存打猎及军事训练。中华人民共和国成立以后,武术作为中国传统文化,通常以体育运动形式在学校、专门的训练机构和协会里教授。中国武术门派众多,通常有以下分类:南派与北派;内功和外功;少林派、武
A、Printmaterialsforvisitors.B、Studyreferentialreports.C、AskSallytomakearrangements.D、Applytothechiefexecutive.B
A、Thosethatareinvolvedinaspecificfield.B、Thosethatareverydifficultandurgent.C、Thosethatneedcooperationoftwo
A、Laughingisalearnedbehavior.B、Laughingisagoodmedicinetopatients.C、Laughingiseasierthanbattlingwithanillness.
A、Gainingasmuchexperienceaspossible.B、Gaininganadvantageoverotherapplicants.C、Makingadequatepreparationsforthei
A、Inastudio.B、Inaclothingstore.C、Atabeachresort.D、Atafashionshow.A对话开头男士说:“欢迎你来到我们的节目。”可见对话发生在节目演播室,故答案为A。长对话开始处的
A、Itmakescontactseasierandquicker.B、Itboomsbusinessandeconomy.C、Itimprovesinterpersonalrelationship.D、Itsavespe
随机试题
现代汉语普通话的音节,最多可由四个音素构成,最少有一个音素,这个音素一般得是元音。()
Theresearchlaboratoryisgoingto______thenewtypeofcomputertouse.
某医务室随机测量了10名男生的胸围和肺活量,已知胸围和肺活量均服从正态分布,则如需对资料进行假设检验,其无效假设是
按照《中华人民共和国海关稽查条例》规定,海关进行稽查时可以行使的职权有______。海关在行使稽查权时,主要稽查对象有______。
下列关于产权比率的表述中,正确的有()。
出租房屋的用途应按()的用途使用。
经历了快速建仓带来的跌穿之痛,近两月以来成立的偏股型新基金纷纷采取低仓位缓建仓的措施,28只新基金虽然无一跌穿面值,但收益也______。填入横线部分最恰当的一项是()。
Whatattractscustomers?Obviouslythequalityofaproductdoes,butvisualimages【51】agreatdeal.Itisnotonlytheimagepr
Tomanyweb-buildingspiders,mostof【C1】______arenearlyblind,thewebistheiressentialwindow【C2】______theworld.,their
A、ThethreatshumansposetoArcticseabirds.B、ThediminishingcoloniesforArcticseabirds.C、TheharmArcticseabirdsmaycau
最新回复
(
0
)