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Narrator Listen to part of a lecture in a biology class. Now get r
Narrator Listen to part of a lecture in a biology class. Now get r
游客
2025-02-07
14
管理
问题
Narrator
Listen to part of a lecture in a biology class.
Now get ready to answer the questions. You may use your notes to help you answer. [br] Why does the professor pose so many questions to the students in this beginning class?
Professor
When Charles Darwin published The Origin of Species in 1859, the first edition sold out overnight. His revolutionary theory of evolution was of interest not only to his fellow scientists, but to great numbers of ordinary people, who avidly read The Origin and argued over the details of the theory.
Today, public interest in biology is even greater. When a previously unknown Scottish biologist cloned the first mammal, a sheep, in February of 1997, the story made front-page headlines all over the world and sharply increased the value of biotechnology stocks overnight.
Biology is a discipline in full flower. Biologists now have the capacity to understand the workings and the interactions of organisms and—at the cellular level—to alter them, almost at will. Biologists have bred new crops, discovered the frailties and strengths of precious ecosystems, developed new treatments for diseases, and begun to solve many puzzles of the human mind.
Spectacular as these developments are, they are a mixed blessing for instructors and their students. The sheer number of facts can be overwhelming. How, for example, can we remember the difference between a missense mutation and a nonsense mutation? Between a plasmodia slime mold and a cellular slime mold? And, more importantly, why should we care?
Yet, to make even the simplest decisions in the 21st century you will need to understand how science works and, at least, the bare basics of biology. If you are sick, should you take an antibiotic? If one of your parents has a genetic disease, should you be tested for the disease- causing allele? If the vacant lot down the road is to be turned into a playing field, should the creek that runs through it be preserved? Is there any harm in running the creek through an underground, concrete culvert? The answers to all of these questions and hundreds of others depend on the ability to understand and evaluate scientific arguments.
The greatest barrier to understanding science is the common misperception that science is inaccessible to ordinary folks. We know that it is accessible. It’s about asking questions, getting a partial answer, and then asking further questions.
选项
A、To help explain the difficulties in this course.
B、To help explain why the class will take a long time to finish.
C、To give a good demonstration of the diversity of biological study.
D、To give an oral test of the students’ general knowledge about biology.
答案
C
解析
本题为内在关系题,要求考生能够把握要点之间的内在联系。题目问:为什么教授在第一堂课就对学生提出如此多的问题?对每一段的要点再次浏览,可以得出A项(为了解释该课程的难点)、B项(为了解释为什么要花较长时间学习该课程)、D项(为了口头测试一下学生对生物学的大致了解)都不是教授提问的目的,唯有C项(为了向学生表明生物学研究内容的多样化)是教授提问的目的,因为这是一次介绍性讲座,提问主要是为了让学生对生物学科的重要性及其所包含的内容有个大致的了解。因此,C项为正确答案。
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