首页
登录
职称英语
According to the passage, what do people often think about astronomers? [br] [o
According to the passage, what do people often think about astronomers? [br] [o
游客
2024-09-20
0
管理
问题
According to the passage, what do people often think about astronomers? [br]
(17)Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact a typical astronomer spends most of his/her time analyzing data and may only be at the telescope a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all. You might not know how rarely images are viewed directly through telescopes.(18 - 1)The most common way to observe the skies is to photograph them. The process is very simple. First, a photographic plate is coated with a light-sensitive material.(19)The plate is positioned so that the image received by the telescope is recorded on it. Then. the image can be developed. enlarged and published so that people can study it.(18 -2)Because most astronomical objects are very remote, the light we receive from them is rather feeble.(18 - 3)(20)But by using a telescope as a camera, long time exposures can be made. In this way objects that are hundreds of times too faint to be seen by just looking through a telescope can be photographed.
选项
A、To decrease the time it takes to photograph objects.
B、To avoid using a telescope.
C、To sharpen the color of what observe.
D、To obtain images of distant objects.
答案
D
解析
语义理解题。根据句(18—1)、(18—2)以及(18—3)可知,文章在介绍天文学家的工作过程时说:由于很多天体很远,因此天文学家们通常把天体拍摄下来以供研究。因此正确答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3766260.html
相关试题推荐
Whatdoesthecampaignintendtotellpeople?[br][originaltext]Smokersin
Accordingtothepassage,adognamedRicocould______.[originaltext]Becar
Accordingtothenewsitem,theOccupymovementcondemnsthecountry’s______.[b
RichpeopleinBritainhavebeenhuntingfoxes______.[br][originaltext]Fo
RichpeopleinBritainhavebeenhuntingfoxes______.[br][originaltext]Fo
Whatisreportedtohavecausedthedeathofatleast17people?[br][original
Accordingtothenewsitem,theElectionDayintheUSison[br][originaltext
Howmanypeoplewereinjuredintheaccident?[br][originaltext]Yesterday,
Howmanypeoplewereinjuredintheaccident?[originaltext]Yesterday,were
PeoplearoundFloridastockeduponthefollowingEXCEPT______.[br][originalt
随机试题
(1)Theinternationalspacestationisgettinganew,inflatableroomthatr
[originaltext]W:Ihaveheardthatyourrateshavegoneuponallpostalitems.
下列属于危险易燃固体的是什么?()A.火柴 B.火药 C.电石 D.炸药
A.益气健脾,渗湿止泻 B.补脾柔肝,祛湿止泻 C.清胆利湿,和胃化痰 D
关于鸟类双重呼吸的叙述正确的是()。A.鼻孔和口同时“一呼一吸” B.肺部
利用股指期货进行套期保值需要买卖的期货合约数量由( )决定。A.现货股票的口系
有两名学生公开课上打起来了,你怎么办?
(2016年真题)下列关于股份有限公司监事会的说法中,正确的有( )。 Ⅰ.
图示一定量的理想气体,由初态a经历acb过程到达终态b,已知a、b两态处于同一
根据《建设工程监理规范》,项目监理机构在施工单位自检的同时,按有关规定、建设工程
最新回复
(
0
)