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
Why can you look at an object in the real world and see it as a three-dimensional (三维的) object , but if you see that same object
Why can you look at an object in the real world and see it as a three-dimensional (三维的) object , but if you see that same object
admin
2019-03-13
77
问题
Why can you look at an object in the real world and see it as a three-dimensional (三维的) object , but if you see that same object on a television, it looks flat? What’ s going on, and how does 3-D technology get around the problem?
It all has to do with the way we see objects. When the light that travels to an object is sent back to our eyes, our brains understand the light and make up a picture in our minds. When an object is far away, the light travelling to one eye is parallel (平行) with the light travelling to the other eye. But as an object gets closer, the lines are no longer parallel—they move toward the same point where they join. You can see this effect if you try to look at something right in front of your nose—you’ll get a lovely cross-eyed expression.
When you look at an object, your brain measures the effort your eyes make to focus on the object as well as how much they had to gather the light to the same point. Together, this information allows you to guess how far away the object is. If your eyes had to gather the light with quite a big effort, then it stands to reason that the object is close to you.
The secret to 3-D television and films is that by wearing a special pair of glasses and by showing each eye the same picture in two different places, you can make your brain think that the flat picture you’ re seeing has depth. But this actually doesn’ t match up the way we see real objects. While your eyes may gather two images (形象) that seem to be one object right in front of you, they’ re actually focusing on pictures further away. This is why your eyes get very tired if you try to watch too many 3-D movies in one sitting.
What makes us see an object in the real world as three-dimensional?
选项
A、The shape of the object.
B、The way our eyes work.
C、The area the object covers.
D、The sharpness of our mind.
答案
B
解析
由文章中第二段第一句“It all has to do with the way we see objects.”可知,我们在真实世界中看物体是三维的是由我们看到物体的方式造成的。故选B。
转载请注明原文地址:https://kaotiyun.com/show/zOrd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Theyarrived______thevillageatthreeo’clockthatevening.
Americansocietydoesnottreatnapfriendly.Infact,saysDavidDinges,asleepspecialist(专家)attheUniversityOfPennsylva
Americansocietydoesnottreatnapfriendly.Infact,saysDavidDinges,asleepspecialist(专家)attheUniversityOfPennsylva
Americansocietydoesnottreatnapfriendly.Infact,saysDavidDinges,asleepspecialist(专家)attheUniversityOfPennsylva
Everyoneneedsabreak,andvacationsarenotmeantforseriousstudy.【B1】______TheSpringFestivaliscomingupsothisisthe
Everyoneneedsabreak,andvacationsarenotmeantforseriousstudy.【B1】______TheSpringFestivaliscomingupsothisisthe
Therearesomeobjectsintheskythatmovesoquicklythatsometimesyouonlyseethemoutofthecornerofyoureye.Theseare
Therearesomeobjectsintheskythatmovesoquicklythatsometimesyouonlyseethemoutofthecornerofyoureye.Theseare
Therearesomeobjectsintheskythatmovesoquicklythatsometimesyouonlyseethemoutofthecornerofyoureye.Theseare
Whycanyoulookatanobjectintherealworldandseeitasathree-dimensional(三维的)object,butifyouseethatsameobject
随机试题
Whenaconsumerfindsthatanitemsheorheboughtisfaultyorinsomeotherwaydoesnotliveuptothemanufacturer’sclaim
关于拓扑异构酶正确的说法是
全口义齿印模和模型的制作不正确的是()
A.干扰核酸合成B.破坏DNA结构与功能C.嵌入DNA干扰转录D.干扰蛋白质合成E.影响激素平衡柔红霉素
患者因高热入院,诊断为流行性乙型脑炎,其隔离应属于
某医院为事业单位,其手术室净化系统项目采用政府财政性资金。该医院按照国家相关法律法规的要求,委托具有采购代理资质的某代理机构采用公开招标的方式择优选择中标供应商。该代理机构于2007年7月2日在中国政府采购网发布招标公告。在规定时间内,共有七家投标人购买了
沉井施工分节制作时,如果设计无要求,混凝土强度应达到设计强度等级()后,方可拆除模板或浇筑后节混凝土。
计算2008年工资及三项费用纳税调整金额为()万元。计算企业2008年度应缴纳的企业所得税()万元。
可持续发展的思想形成于20世纪______。
ButsomebookswouldcostmorethanIhave.ButIdidn’t______tobuysomebooks.
最新回复
(
0
)