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
2023-11-02
53
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/3151692.html
相关试题推荐
RichpeopleinBritainhavebeenhuntingfoxes______.[br][originaltext]Fo
RichpeopleinBritainhavebeenhuntingfoxes______.[br][originaltext]Fo
Whatisreportedtohavecausedthedeathofatleast17people?[originaltext]
Howmanypeoplewereinjuredintheaccident?[br][originaltext]Yesterday,
PeoplearoundFloridastockeduponthefollowingEXCEPT______.[br][originalt
PeoplearoundFloridastockeduponthefollowingEXCEPT______.[originaltext]
Accordingtothenewsitem,theAffordableCareActis______.[br][originaltex
Accordingtothenewsitem,theAffordableCareActis______.[originaltext]
Accordingtothepassage,whatdopeopleoftenthinkaboutastronomers?[br][o
Accordingtothepassage,whatdopeopleoftenthinkaboutastronomers?[origina
随机试题
Althoughwomenclustertohimlikemothsaroundaflame,heisnone______happie
Theprimarypurposeofthepassageisto______[br]Thepassagesuggestswhicho
NarratorListentoaconversationbetweenAnaandhertutorabouthercoursesse
Theaveragenumberofwomenineachgroupis______.[br][originaltext]Be
美国期货市场由商品期货交易委员会(CFTC)监管,并由全国期货协会(NFA)进行自律性监管。()A、正确B、错误A美国期货市场由商品期货交
某内部审计师在审计过程中发现被审计单位可能存在违法行为,但由于没有证据,他没有向
有效市场理论,根据证券价格对市场信息的反映程度,将有效市场划分为()。A.弱式
下列哪条依据诊断慢性细菌性前列腺炎最有价值A.膀胱刺激症状 B.尿中多次培养出
在现阶段,居民理财的两大主要方式是()A.商铺与实业投资 B.外汇投资与股权
根据下列资料回答问题。 以下为某省的人口失业率图表。其中,黑色部分表示该省全省
最新回复
(
0
)