Whenyouwatch3DmoviesorTV,youhavetowearaspecialpairofgla...
问题详情:
When you watch 3D movies or TV,you have to wear a special pair of glasses.The 3D glasses make the images from the screen look like they are there in the room with you.
Three-dimensional,or 3D,means having three dimensions(维度) : width,height and depth.3D technology(技术) is based on the way the human brain(大脑) and eyes work.Because the pupils of a person's eyes are about 6.5era apart(分开),when we look at something,each eye sees it from a different angle(角度).Our eyes send the two images to our brain,and the brain puts them together.The small difference between the image from the right eye and the image from the left eye allows us to see depth.
When we view pictures and television in two dimensions,each eye gets the same information.That is because the image has no real depth,and there is only one of viewing it.So the goal of 3D technology is to get a different image into each of the viewer.It uses two film projectors.One projects a left eye image and the other projects a right image.The 3D glasses allow us to see a different image in each eye.
While watching 3D films,we feel that we are in the same environment as the things we're watching.However,it also has its disadvantages.The 3D glasses work by controlling the amount of light that reaches the eyes.It makes the screen look darker.What's more,people with eye problems may get headaches if they spend too much time watching 3D movies,because their brains need to work harder to "read" the images.
1.According to the passage,we can see 3D TV with the help of ____.
A.the exciting games B.the special glasses
C.the dark screen D.the image in the room
2.The second paragraph mainly tells us ____.
A.how we see things in 3D
B.how 3D films are made
C.what the human brain does for our eyes
D.how different images get into the brain
3.The underlined word "pupils" in the passage means____ in Chinese.
A.学生 B.视线 C.睫毛 D.瞳孔
4.Which of the following is TRUE?
A.3D glasses make the screen look brighter.
B.People with eye problems can't see 3D films.
C.A 3D film needs making by two film projectors.
D.3D glasses held people get the same image in each eye.
【回答】
1B 2A 3D 4C
知识点:健康保健类
题型:阅读理解
-
阅读下文,根据文中的情境,选出依序最合适填入*、乙的选项。(3分)清光四*,天空皎洁, * ,坐客无...
问题详情:阅读下文,根据文中的情境,选出依序最合适填入*、乙的选项。(3分)清光四*,天空皎洁, * ,坐客无不悄然!舍前有两株梨树,等到月升中天,清光从树间筛洒而下, 乙 ,此时尤为幽绝。直到兴阑人散,归房就寝,月光仍然逼进窗来,助我凄凉。 ...
-
2003年楚人学舟楚①人有习*舟者,其始折旋②疾徐,惟舟师之是听。于是小试洲渚之间,所向莫不如意,遂以为尽*舟...
问题详情:2003年楚人学舟楚①人有习*舟者,其始折旋②疾徐,惟舟师之是听。于是小试洲渚之间,所向莫不如意,遂以为尽*舟之术。遽谢舟师,椎③鼓径进,亟犯④大险,乃四顾胆落,坠桨失柁⑤。【注释】①楚:古国名。②折:调头。旋:转弯。③椎:用椎敲。古代作战,前进时以击鼓为号。④亟...
-
_____togiveupsmoking,hethrewawayhis_______cigarettes. ...
问题详情:_____togiveupsmoking,hethrewawayhis_______cigarettes. A.Determining;remained B.Determining;remaining C.Determined;remained D.Determined;remaining【回答】D知识点:分词题型:选择题...
-
____________的建成,结束了我国靠洋油过日子的时代,社会主义探索中,涌现出来的模范人物有石油工人__...
问题详情:____________的建成,结束了我国靠洋油过日子的时代,社会主义探索中,涌现出来的模范人物有石油工人________________。【回答】大庆油田 王进喜知识点:对社会主义道路的探索题型:填空题...
相关文章
- HereI'dliketoshareoneofmysurvivalexperienceswithyou.Las...
- WehaveeveryreasontobelievethatZhangjiakouWinterOlympic...
- Iliveinabigcitywithalotofhomelesspeople.Luckily,there'r...
- Iliveinabigcitywithalotofhomelesspeople.Luckily,there'r...
- 七选五阅读There'splentyofadviceoutthereaboutwhattodotogettos...
- Whenwecompareourselveswithgreatpeople,wemayfeelveryordi...
- Ifyou’vealwayshopedtogiveupyour9-to-5jobtomovetoMaineto...
- Doyouwanttobeproductive(富有成效的)atworkorathome?Here'swhat...
- —HowdoyouliketheideaofWebTV?—It'saworldofinteractiveTVp...
- Iliveinabigcitywithalotofhomelesspeople.Luckily,there'r...