科学的划界标准是（）。
A.实证性
B.创造性
C.预言性
D.逻辑自洽性
参考答案：A, B, C, D
解析：
人们通常根据以下标准来界定科学：
①科学是实证性的，科学必须建立在公共经验的事实基础上，科学工作者得出的结论必须是他人在同样的实验条件下可以重复或验证的；
②科学是创造性的，即新的理论不仅要能够解释先行理论已经解释了的现象，而且必须要能解释先行理论所不能解释的某些现象；
③科学是预言性的，即在给定的条件下，它能够定量地预言继后发生的结果，并且在其预言与实践结果不符的情况下，愿意接受实践的证伪；
④科学作为一种理论体系必须追求逻辑上自洽，即任何一种科学理论体系内部必须是自圆其说、协调一致的，不存在矛盾。
| Complete the following passage with the words or phrases in the box. Each can only be used once (将下列单词或词组填入空格.) | |
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| A headmaster is giving a speech about how to perform successfully in an interview to a new school. | |
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| Interviews are held so that you can learn about the school and the school can learn aboutyou. You should spend a couple of hours getting ready for the interview carefully. Then youwill 1 understand your questions better and get right answers on the day of theinterview. First find out about the school. Read the school introductions and look at the schoolwebsites. Then think about yourself- your strong points and 2 ones. Try to find afew examples you could give the interviewers. What else you want to tall the interviewer about yourself?. For example, you might wantto speak about your interests and 3 outside school. These tell the interviewer whatkind of person you are. Be ready to talk about why you enjoy them. Dress properly on the day. Arrive a few minutes early. When you first meet theinterviewer, greet him or her 4 . Don't forget to smile and make eye contact. Firstimpressions (印象) are very important. You want the interviewer to think you are 5 and friendly. If you get nervous, take a deep 6 to calm yourself down. Listen to theinterviewer with great care. If you don't understand the question, ask the interviewer torepeat it. Last but not least, 7 the interview, don't forget to thank the interviewerand say goodbye. I'm sure that you will 8 your interviews. Best of luck, boys and girls! |