University Physics is intended for students of science and engineering. Primary emphasis is on physical principles and problem-solving; historical background and specialized practical applications have been given a place of secondary importance. Many worked-out examples and an extensive collection of problems are included with each chapter. In this new edition, the basic philosophy and outline and the balance between depth of treatment and breadth of subject-matter coverage are unchanged from previous editions. We have tried to preserve those features that users of previous editions have found desirable, while incorporating a number of changes that should enhance the book's usefulness. The textbook is adaptable to a wide variety of course outlines. The entire textbook can be used for an intensive course two or three semesters in length. For a less intensive course, many instructors will want to omit certain chapters or sections to tailor the book to their individual needs. The arrangement of this edition facilitates this kind of flexibility. Conversely, however, many topics that were regarded a few years ago as of peripheral (外围的、次要的) importance and were omitted from introductory courses have now come to the fore again in the life sciences, earth and space sciences, and environmental problems. An instructor who wishes to stress these kinds of applications will find this textbook a useful source for discussion of the appropriate principles. In any case, it should be emphasized that instructors should not feel constrained (受约束的) to work straight through the book from cover to cover. Many chapters are, of course, inherently sequential in nature, but within this general limitation instructors should be encouraged to select among the contents those chapters that fit their needs, omitting material that is not relevant to the objectives of a particular course.
单选题
This textbook lays stress on ______. A. the exposition of physical principles B. the principles of physics and their application C. the development of physics D. the application of physics in different fields
【正确答案】
B
【答案解析】第一段作者明确指出：“Primary emphasis is on physical principles and problem-solving; historical background and specialized practical applications have been given a place of secondary importance”，可见B为正确答案。而A和D不全面；C只是书中的内容而不是重点内容。
单选题
Compared with the old one, this new edition ______. A. has been made more applicable B. is easier to learn C. covers a wider range of subject-matter D. has improved the balance between theory and practice
【正确答案】
A
【答案解析】第二段指出：新版有“a number of changes that should enhance the book's suefulness”，由此可见A为正确答案。而B未提及；C和D与原文第二段第一句相矛盾。
单选题
One of the features of this textbook is that ______. A. some contents are dealt with in terms of philosophy B. it has an outline for each chapter C. it introduces the physical principles in great length D. it can be used for different course arrangements
【正确答案】
D
【答案解析】A，B和C均未在文中提及。根据第三段第一句话“The text book is adaptable to a wide variety of course outlines”，我们可以看出D为正确答案。
单选题
The underlined words "conversely, however" (Para. 4) indicate that ______. A. many topics can be emphasized though they were not covered in the old edition B. many topics can be emphasized though they were usually omitted by instructors C. many topics have been added to the new edition as they were not covered in the old one D. many topics have been added to the new edition though they can be omitted by the instructors
【正确答案】
B
【答案解析】在文中第三段末，作者谈到导师对本书的某些章节可根据个人需要而省略，在第四段中作者又说“many topics that were regarded a few years ago as of peripheral importance and were omitted from introductory courses have now come to the fore again in the life sciences, earth and space sciences, and environmental problems”，作者很显然在暗示某些导师习惯省略的话题现在又变得重要了，又需要重新强调了，可见B为正确答案。
单选题
To meet the needs of a particular course, the teacher of this book can omit some of the contents provided that ______. A. his selection is based on the request of his students B. he does not omit any chapter completely C. his students are particularly intelligent D. he keeps an eye on the internal relations between the chapters
【正确答案】
D
【答案解析】细读最后一段“Many chapters are, of course, inherently sequential in nature, but within this general limitation instructors should be encouraged to select among the contents those chapters that fit their needs, omitting material that is not relevant for the objectives of a particular course”，可知 D为正确答案。而A，B和C在文中均未提及。