首页
登录
职称英语
[originaltext] The saying "blind as a bat" simply isn’t correct. The truth i
[originaltext] The saying "blind as a bat" simply isn’t correct. The truth i
游客
2023-08-05
66
管理
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://tihaiku.com/zcyy/2898458.html
相关试题推荐
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
随机试题
Somestudentsarenotadequatelypreparedforcollege.Shouldweturnthema
______(已婚夫妇女的首要责任),therefore,wastothinkoftheirchildren’shappiness.Ama
AsdetailsofAmericansnooping(窥探)spread,salesof1984,GeorgeOrwell’s
滑轮组中钢丝绳穿绕方法不正确,会引起倾斜发生事故。
下列定额分类中按生产要素消耗内容分类的是( )。A.材料消耗定额、机械消耗定额
焦虑障碍主要包括哪几种类型
患者女。52岁。诊断为高血压急症。应用速尿后出现乏力、腹胀、肠鸣音减弱,可能出现
物业管理各方主体与政府之间的关系是()关系。A:行政法律 B:行政隶属 C:
建设工程施工合同不能认定无效的是()。A.承包人超越资质等级承揽工程 B.借用
财产保险合同包括()A.建筑工程一切险 B.安装工程一切险 C.寿险
最新回复
(
0
)