首页
登录
职称英语
About ten men in every hundred suffer from colour blindness in some way; wom
About ten men in every hundred suffer from colour blindness in some way; wom
游客
2025-03-16
32
管理
问题
About ten men in every hundred suffer from colour blindness in some way; women are luckier-only about one in two hundred is affected in this manner. There are different forms of colour blindness.
A man may not be able to see deep red. He may think that red, orange and yellow are all shades of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green-a strange world indeed.
In certain occupations, colour blindness can be dangerous and candidates are tested most carefully. For example, when fighting at night, soldiers use flares to signal to each other. A green light may mean "Advance" and a red light may mean "Danger! Keep back!" You can see what would happen if somebody thinks that red is green! Colour blindness in human beings is a strange thing to explain. In a single eye there are millions of very small cells called cones, These help to see in bright light and to tell the difference between colours. There are also millions of rods which are used for seeing when it is nearly dark. They show us shape but not colour.
Birds and animals which hunt at night have eyes which contain few or no cones at all, so they cannot see colours. As far as we know, bats and adult owls cannot see colours at all, only light and dark shapes. Similarly cats and dogs cannot see colours as well as we can.
Insects can see ultra violet(紫外线的) rays which are invisible to us, and some of them can even see X-rays. (80)
The wings of a moth(飞蛾) may seem grey and dull to us, but to insects they may appear beautiful, showing colours which we cannot see.
Scientists know that there are other colours around us which insects can see but which we cannot see. Some insects have favorite colours. Mosquitoes like blue, but do not like yellow. A red light will not attract insects but a blue lamp will.
选项
A、some may see everything in shades of green
B、few can tell the difference between blue and green
C、few may think that red, orange and yellow are all shades of green
D、very few may think that everything in the world is in green
答案
D
解析
细节题。在第一段最后一句中,作者说在罕见的病例中,不幸的患者会把每一种色彩都当作是深浅不同的绿色。A、B、C的错误之处都在于对色盲人数多少的限定词some或few使用不够准确。
转载请注明原文地址:https://tihaiku.com/zcyy/3999277.html
相关试题推荐
Hiscolourisnotrelevant______whetherheisagoodlawyer.A、ofB、forC、toD、
Ourteacheraskedustodoa______writingafterclass.A、three-hundred-wordB、t
ThePanamaCanalwasconstructedin1915______threehundredfiftymilliondoll
Weshouldtakegoodcareofoureyes______.[br]Peoplewhosufferfromastigm
Weshouldtakegoodcareofoureyes______.[br]Theunderlinedwords"suffer
Thehabitofreadingnewspapersis______.[br]Afewhundredyearsagonewsdid
Thereare(hundred)(ofkinds)ofcheeses,and(they)differintaste,texture,
【B1】[br]【B14】A、fightingB、sufferingC、poorD、illBsuffering,遭受痛苦。这句话的意识是说他亲眼目睹
Amongpeoplewhosufferfromcolourblindness,______.[br]Whichofthefollow
Amongpeoplewhosufferfromcolourblindness,______.[br]Accordingtothepa
随机试题
BirthControlThetermbirthcontro
[originaltext]W:Youknow,I’veoftenwonderedwhypeoplelaughatthepicture
交通行业标准规定:单向活动球形支座设计竖向承载力40000kN,纵向位移量±20
女,45岁,近1周腹痛,近3天乏力,头晕,逐渐出现活动后心慌,气短。平卧时缓解,
Whichofthefollowingiscorrectinits
能够从上述资料中推出的是:A.2018年,我国海洋科研教育管理服务业产值
如右图所示,甲和乙在面积为54π的半圆形游泳池内游泳,他们分别从位置A和B同时出
计算机信息系统要素中的()是系统分析与处理的对象,构成系统的应用基础。A.
瞬时记忆的编码方式包括()。(2009-11)A:语义 B:感觉后像 C:语
关于施工成本目标控制的原则,正确的有( )。A.成本最低原则 B.实用性原则
最新回复
(
0
)