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Theories are like apples; there are good ones and there are bad ones. A good
Theories are like apples; there are good ones and there are bad ones. A good
游客
2023-12-20
19
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问题
Theories are like apples; there are good ones and there are bad ones. A good apple is flavorful and nutritious. A good theory is one that we have good reason to believe is true, or at least likely to be true. Apples have all sorts of features that are indicative of goodness and that can be used at the store for making smart choices. An apple’s color, shininess, shape, and firmness are related to its flavor and food value. Similarly, theories have features that are indicative of their truth, and the task of justification is to identify these features and use them to guide choices as to which theories to believe. In this way, responsible theory choice and responsible science are not unlike responsible shopping. The big difference is that you get to go home and eat the apple and find out if you were right and it really does taste good. With theories, however, there is no feature that is the taste of truth, at least not that we get to sample. There are only features that indicate truth. You never get to go home and see unambiguously that atomic theory, for example, is true. But you do the best you can.
Theories have lots of different properties and can differ one from another in a variety of different ways. A few have been mentioned already, namely the degree of generality and hypothetical status of a theoretical claim. An account of the proper- ties of a theory is an answer to the inquiry, "So tell me what this theory is like. "There are plenty of things to say, that is, plenty of features to mention. There is the feature of how it was discovered, by whom, at what time of day. Some theories have the feature of being proposed by Einstein; some lack his feature. Some have the feature of being liked by Einstein; some don’t. There are also features of the content of a theory or of its form. Bein6 logically consistent is a feature of form. Making reference to action at a distance, or to evil spirits, or to gluons are distinct features of content. There are even pragmatic features. Some theories are likely to be money-makers; others are not.
Clearly, some of these features of theories are irrelevant to an analysis of scientific knowledge and irrelevant to doing science. We want to focus on the important features, those that meet the following two criteria. First, they must be relevant to the likelihood of the theory being true. That is, they must be reliable indicators of truth so that our seeing whether the feature is present or not will be part of our warrant for believing the theory. Some theories have the property that you learned them on a Tuesday, but that is unimportant because it is neutral to their being true or false. Some theories have the property of describing goblin maintenance men to keep the world in good working order. That ‘s an important feature because it helps us decide whether the theory is true or false.
The second criterion of importance is that the property is something we can in fact evaluate. The information must be accessible to us if it is to be of any use. To get back to apples for a moment, even if it’s true that apples with darker seeds taste better, this isn’t any help there in the store where information about the seeds isn’t available. Similarly, a theory about the demise of dinosaurs is true if it is an accurate picture of the past events, but the feature of being an accurate picture is not something we can evaluate. We can’t see what this theories a picture of, and so we can’t assess its accuracy. Much as we would like to use accuracy-of-picture or correspondence-to-facts as features that indicate truth, information a- bout these features is unavailable. Features that are important to the justification of theories must be both truth-conducive [br] Which of the following can serve as one of the reasons to support the idea that theories are like apples?
选项
A、Both of them are either good or bad.
B、Both of them have all sorts of features.
C、Both of them have features that indicate their truth or goodness.
D、Responsible theory choice is dissimilar to responsible shopping.
答案
C
解析
该题问:下面哪一项可以作为支持理论像苹果的想法的原因?本题要求找出哪个选项有助于说明为什么把理论比作苹果。由第一段第三行Apples have all sorts of features that are indicative of goodness and that can be used at the store for making smart choices(苹果有种种特性表明其质量优良。在商店里,可以根据这些特性来挑选好苹果)和该段第五行Similarly,theories have features that are indicative of their truth,and the task of justification is to identify these features and use them to guide choices as to which theories to believe.(与此相似,理论有一些特性可表明其正确性。检验理论的任务就是识别这些特性,并利用这些特性来选择可以相信的理论)可以看出,选项C的Both of them have features that indicate their truth or goodness(二者都具备表明其正确性或优质的特性)是作为把理论比作苹果的一个理由;选项C不仅是理论和苹果的共性,而且可以用来选择优质苹果或正确理论。应为正确答案。虽然,选项A的“二者都有好坏之分”和选项B的“二者都有各种特色”都可以看作理论和苹果的共性,但是,不能用来解决任何问题。所以,选项A和B不是答案。由第一段第七行responsible theory choice...are not unlike responsible shopping(对理论进行负责的选择…与明智购物没有什么区别)可知,选项D中的dissimilar不正确。
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