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
A、A boom period of photography. B、The official date of the peak of photography. C、The official date of the beginning of photogra
A、A boom period of photography. B、The official date of the peak of photography. C、The official date of the beginning of photogra
admin
2009-08-19
23
问题
Today, I’ll be talking about the invention of the camera and photography. The invention of the camera and photography changed our lives a lot. The camera is often thought to be a modern invention. But as early as 1727. a German physicist discovered that light darkens silver salt, a chemical compound. Using as a camera, a big box with small hole to let the light in, he made temporary images on the salt. Silver salt is still the base of film today.
Then a French scientist made the first permanent picture by using a special piece of metal sensitized with silver salt. A photograph he made in 1826 still exists. The painter, Daguerre improved on the process by placing common salt on the metal. This was in 1839, the official date of the beginning of photography, but the problem was the printing of the photographs, and it wasn’t until other scientists developed the kind of paper we now use, that good printing was possible and photograph became truly modem.
In 1860s, Mattew Bradey was able to take his famous pictures of the American Civil War. In the 20th century. George Eastman of the United States simplified film developing, and Dr. Edwin Land invented the so-called "instant" camera with self-developing film. If we say that photography came into existence in 1839, it follows that it has taken more than one hundred years for the camera to reach its present condition of technical refinement.
选项
A、A boom period of photography.
B、The official date of the peak of photography.
C、The official date of the beginning of photography.
D、A meaningless year of photography.
答案
C
解析
What does the year 1839 mean to the photography?
四个选项都是关于某一年对摄影的影响,由此可以推断,本问题的中心可能是关于某一年对摄影的影响。文中说,目前普遍认为摄影正式开始的年代(official date of the beginning of photography)是1839年。故正确答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/capK777K
0
大学英语六级
相关试题推荐
A、Areceptionist.B、Asecretary.C、Anurse.D、Atraveller.A男士说他想订一个房间,周二入住,女士问他打算什么时候离开。由此可以推断,女士是个前台接待员。
Researcherssaypeopletravelingintrafficarethreetimesmorelikelytosufferaheartattack.Theysaytheriskofahearta
(catch)______cheatingbytheteacherintheexam,Davidscoredzeroinmathexam.
VisitthelargestislandinGreatSaltLake,whichofferscamping,wildlifeviewing,horsebackridingandmountainbiking,etc.
A、At3o’clock.B、At4o’clock.C、At5o’clock.D、At6o’clock.C信息明示题。对话开头,男士打电话询问女士晚餐的时间,女士说从5点到10点,5点之前不提供晚餐,故C)“5点”为本题的答案。A)
MostofusgrowuptakingcertainthingsforgrantedWetendtoassumethatexpertsandreligiousleaderstellus"thetruth".W
MostofusgrowuptakingcertainthingsforgrantedWetendtoassumethatexpertsandreligiousleaderstellus"thetruth".W
WelcometoStanfordTakeanonlineorwalkingtourofStanford’s8200-acrecampus,orfindoutaboutpopularattractionsin
Personswhoareoverweightshouldwatchtheirdietcarefullyinordertolosepounds.Thebestwaytodothisistostartaweigh
Fewpeoplewouldeverthinkofbeginninganewjobwhentheyareold,butAnnadiditattheageof76.Shewas【T1】________ina
随机试题
如果被保险货物运达保险单所载明的目的地,收货人提货后即将货物转运,则保险公司的保险责任于转运到达目的地仓库时终止。()
国家公务员在对外交往中损害国家荣誉和利益的行为直接违反了
舒张早期奔马律与生理性第三心音的区别不包括
A.白庀B.白屑风C.油风D.花斑癣E.头藓
我国急性胰腺炎的最常见病因为
“绿色包装”就是指所使用材料中的主要成分没有受到污染,且可回收利用、可降解。()
在最佳现金持有量确定的存货模式下,企业持有的现金数量越少,则()。
在组织运行过程中,组织冲突的发生()。
热爱祖国,热爱人民,拥护中国共产党领导,拥护社会主义。全面贯彻国家教育方针,自觉遵守教育法律法规,依法履行教师职责权利。不得有违背党和国家方针政策的言行。这体现了教师职业道德规范的()
2015年3月24日,中共中央政治局审议通过广东、天津、福建自由贸易试验区总体方案,进一步深化上海自由贸易试验区改革实验方案。其中主要发展对台湾地区和东盟贸易的自贸区是()。
最新回复
(
0
)