第一次大作业

姓名：田婷学号：2016300185 班级序号：06 1.Write a passage of 150-200 words to summarize the main idea of the Critical Reading Text in Unit 1. Remember to include the objective, the methods and the major findings. When you are writing the summary, please remember not to copy the exact the sentences from the text.

Laypeople’s Understanding of Radioactivity and Radiation

The objective of the text is to find out laypeople’s understanding of central concepts concerning radioactivity and radiation phenomena, and then to detect whether respondents feared radiation and to investigate their attitudes to the applications of radiation.

The survey was conducted in the form of questionnaire given to 270 students in an elementary physics course at the University of Oslo. This group was chosen for two main reasons : 1) The group was fairly large and easily accessible and 2) the group mainly consisted of first-year students who had completed secondry education , but had not received formal instruction on radiation since leaving school . And the questionnaire consisted of 13 questions .After that, all answers were assigned to the appropriate categories and coded.

They found that there was a lack of knowledge about ‘absorption’ among respondents. Besides, women tended to be more worried about radiation and more sceptical about nuclear power than were men. In addition to that, only a small number of respondents feared the exposure to radition. Sufficient knowledge of radiation has little to do with one’s political considerations and judgments.

Taking the lay conceptions into account and integrating factual knowledge and practical considerations may be a solution to the problem. Analyzing preconceptions about radiation may improve the public understanding of radiation phenomena.

2. Choose and write down your own research topic and narrow it down to at least three approriate working topics. Pay careful attention to the Models and Principles from p.27 to p.32.

My Topic: Genetically Modified Foods

My narrower topics / My working titles:

1. The conception of genetically modified foods

2.The present situation of genetically modified foods in the market

3.The advantages and disadvantages of the existence of genetically modified foods