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
In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model
In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model
admin
2017-06-11
96
问题
In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.
A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists’ predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.
Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said; " Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house. " Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses.
In a way, any hypothesis is a leap into the unknown. It extends the scientist’s thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.
In the last paragraph, the author refers to a hypothesis as "a leap into the unknown" in order to show that hypotheses______.
选项
A、are sometimes ill-conceived
B、can lead to dangerous results
C、go beyond available facts
D、require effort to formulate
答案
C
解析
本题是细节题。从题干中的关键词“a leap into the unknown”找到其定位原句“any hypothesis is a leap into the unknown”,接下来是对这一论点的深入陈述,即“It extendsthe scientist’s thinking beyond the known facts”(“假设”使科学家的思想可以超越已知事实)。由此可判断C正确。
转载请注明原文地址:https://kaotiyun.com/show/KtFO777K
0
考博英语
相关试题推荐
Althoughtheaccidentdidverylittle_____tothecar,Istillsuggestthatyoudrivemorecarefullynexttime.
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Evengeologistisfamiliarwiththeerosioncycle.Nosoonerhasanareaoflandbeenraisedabovesea-levelthanitbecomessub
Evengeologistisfamiliarwiththeerosioncycle.Nosoonerhasanareaoflandbeenraisedabovesea-levelthanitbecomessub
Onanaverageofsixtimesaday,adoctorinHollandpractices"active"euthanasiaintentionallyadministeringalethaldrugto
Readthefollowingpassagecarefullyandthenparaphrasethenumberedandunderlinedparts.("Paraphrase"means"toexplainthem
Readthefollowingpassagecarefullyandthenparaphrasethenumberedandunderlinedparts.("Paraphrase"means"toexplainthem
Forlaymenethnologyisthemostinterestingofthebiologicalsciencesfortheveryreasonthatitconcernsanimalsintheirno
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedthe
随机试题
分析行业一般特征的主要内容包括()
在加大房地产市场宏观调控的形势下,某市政府对该市房地产开发的管理现状进行检查,发现以下情况,其中哪些做法是需要纠正的?
A.骑跨伤B.枪弹、锐器伤C.骨盆骨折D.腰部撞击伤E.盆腔手术或腹膜后手术
葡萄糖合成糖原的反应在哪里进行
20,对于项目的选址要结合国家土地利用政策和()条件去评价其土地占用的合理性。
影响建筑物基础埋深的主要因素是下面的()。
当事人对已经发生法律效力的判决、裁定申请再审,是否适用于中止、中断和延长的说法正确的是()。
根据所给材料,回答问题。近段时间,一个“才子”、一个“佳人”陆续成为朋友圈里的刷屏人物。前者是赵雷,一位民谣歌手,凭着一《成都》,在湖南卫视节目《歌手》中一登台,就拿到了第二名的好成绩;后者是武亦姝,一名中学生,在《中国诗词大会》上一鸣惊人,成功问鼎
剃须刀:刀片
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
最新回复
(
0
)