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
Bees and Colour On our table in the garden we put a blue card, and all around this blue card we put a number of different gr
Bees and Colour On our table in the garden we put a blue card, and all around this blue card we put a number of different gr
admin
2012-07-29
66
问题
Bees and Colour
On our table in the garden we put a blue card, and all around this blue card we put a number of different grey cards. These grey cards are of all possible shades of grey and include white and black. On each card a watch-glass is placed. The watch-glass on the blue card has some syrup(果汁) in it, all the others are empty. After a short time bees find the syrup, and they come for it again and again. Then, after some hours, we take away the watch-glass of syrup which was on the blue card and put an empty one in its place.
Now what do the bees do? They still go straight to the blue card, although there is no syrup there. They do not go to any of the grey cards, in spite of the fact that one of the grey cards is of exactly the same brightness as the blue card. Thus the bees do not mistake any shade of grey for blue. In this way we have proved that they do really see blue as a colour.
We can find out in just the same way what other colours bees can see. It turns out that bees can see various colours, but these insects differ from us as regards their colour-sense in two very interesting ways. Suppose we train bees to come to a red card, and, having done so, we put the red card on the table in the garden among the set of different grey cards. This time we find that the bees mistake red for dark grey or black. They cannot distinguish between them. This means that red is not a colour at all for bees; for them it is just dark grey or black. That is one strange fact; here is another. A rainbow is red on one edge, violet on the other. Outside the violet of the rainbow there is another colour which we cannot see at all. This colour beyond the violet,invisible to us, is called the ultra-violet. Although it is invisible, we know that the ultra-violet is there because it affects a photographic plate. Now, although we are unable to see ultra-violet light , bees can do so; for them ultra-violet is a colour. Thus bees see a colour which we cannot even imagine. This has been found out by training bees to come for syrup to various parts of a spectrum, or artificial rainbow, thrown by a prism on a table in a dark room. In such an experiment the insects can be taught to fly to the ultra-violet, which for us is just darkness.
Bees are more sensitive to colours than human beings.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
文章没有涉及bees对颜色的敏感度这一话题,只在第三段提到这些昆虫的colour sense(色感)与人类的不同。
转载请注明原文地址:https://kaotiyun.com/show/Ummd777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Usingtheinformationinthetext,completeeachsentence14-18,withawordorphrasefromthelistbelow.Foreachsentenc
CONVERSATION2(Questions5-8)Fred’sjob:【L5】______driver.Yearsfordoingthejob:【L6】______.ProblemsFredhad:troublewith
CONVERSATION2(Questions5-8)Fred’sjob:【L5】______driver.Yearsfordoingthejob:【L6】______.ProblemsFredhad:troublewith
Youaregoingtoreadanewspaperarticleabouthumanbeingsgettingtaller.Eightsentenceshavebeenremovedfromthearticle,
•YourEnglishteacherhasaskedyoutowriteastory.•Yourstorymustbeginwiththissentence:NobodyknewwhatAdamhadi
Ryanahasjustfinishedherbusinessdegree.Shewouldliketorelaxinaclean,quietcitywhichhasalonghistory.Jennyan
Ryanahasjustfinishedherbusinessdegree.Shewouldliketorelaxinaclean,quietcitywhichhasalonghistory.Dhillon
TherewerenohumanbeingsontheearthduringtheIceAge.Accordingtothepassage,beforetheIceAgethecontinentalshelf
MyExperienceaboutEnglishOnesummernight,onmywayhomefromworkIdecidedtoseeamovie.Iknewthetheatrewouldbeair
MyExperienceaboutEnglishOnesummernight,onmywayhomefromworkIdecidedtoseeamovie.Iknewthetheatrewouldbeair
随机试题
关于防火卷帘控制器、手动按钮的保养操作步骤:①切断防火卷帘控制器输入电源;②检查防火卷帘控制器内部器件和手动按钮盒,紧固接线端口、螺钉等;③清洁控制箱内、表面和按钮上的灰尘污物,防止按钮卡阻而不能反弹;④保养结束后,接通电源,通过防火卷帘控制器和手
一般而言,受众选择信息会形成心理上的“防卫圈”,这主要包括()
治疗喉炎的物理方法是
甲公司2013年5月1日“库存现金”账户与“应付账款”账户余额如下:甲公司5月份发生下列经济业务:(1)从银行提取现金300000元。(2)用现金发放职工工资300000元。(3)用现金500元购买办公用品。(4)购买材料应付款5000元。要
1865年,以芝加哥商业交易所推出标准化合约为标志,真正意义上的期货交易和期货市场开始形成。()
监管评级应当遵循的原则不包括()。
定量研究中研究者的角色是()。
一个字长为8位的无符号二进制整数能表示的十进制数值范围是
ComputerNeedsEmotionThenextbigbreakthroughinartificialintelligencecouldcomefromgivingmachinesnotjustmorelo
Fromthetextwelearnthatifsomeonewantstofindinformationabouttravelofferstheycanvisit______.Ifsomeonehasavac
最新回复
(
0
)