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
23
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
A------boardofdirectorB------cargocontainerC------salesnetworkD------inde
Humansareforeverforgettingthattheycan’tcontrolnature.Exactly20yea
Justafewweeksago,economistsandmarketanalystswereexpectingtheFeder
治疗盆腔炎性疾病热毒炽盛证首选A.仙方活命饮 B.龙胆泻肝汤 C.止带方合五
根据《首次公开发行股票并上市管理办法》,发行人的董事、监事和高级管理人员不得有的
债券投资的主要风险因素包括( )。 Ⅰ.违约风险 Ⅱ.汇率风险 Ⅲ.流动
患者因上腹痛、腹胀、恶心、呕吐2年就诊,拟诊为慢性胃炎,为明确诊断,最有价值的检
(2017年真题)人身保险合同订立后,因投保人丧失对被保险人的保险利益,当事人主
下列属于工程监理单位质量管理体系建立和实施过程中质量体系运行与改进的有()
磁粉探伤设备简单、操作容易、检验迅速、具有较高的探伤灵敏度,几乎不受试件大小和形
最新回复
(
0
)