[单项选择]The primary purpose of the article is to

[单项选择]The primary purpose of desk rearrangement is
A. for the teacher to divide students into small groups.
B. to make it possible for students to interact with each other.
C. for the teacher to find out how students think.
D. to give students more opportunities to practice speaking.

[单项选择]

Usually the primary purpose of textbook writing is to inform. In textbooks, authors wellinformed in a particular subject or discipline identify the terms, facts, and opinions considered essential to an understanding of the field. While authors’ personal interests play a role in what terms or facts are selected and how they are interpreted, the writing bears a primary or central goal which is not to persuade you to see things from the same perspective. In fact, textbook authors frequently give equal time to opposing points of view so that readers can draw their own conclusion.
However, as you turn from your textbooks to the pages of newspapers and magazines, you may encounter writers with other primary goals. Some write to entertain; others write simply to air a personal preference. However, a good portion of the writers you encounter, particularly on the editorial (社论) pages, write in the hope that you will share or at least seriously consider adopting their
A. they are only interested in the facts provided by the article
B. they make a judgement of the arguments given in the article
C. they do not accept the arguments provided by the article.
D. they are able to distinguish between facts and opinions given in the articl

[单项选择]The authors primary purpose in writing this passage was to ______.


A. plead for the abolishment of uniforms
B. show that uniforms are not possible in a democratic society
C. advocate stronger governmental controls on the wearing of uniforms
D. convince the reader that uniforms have more disadvantages than advantages

[单项选择]The author's primary purpose is to
A. (A) answer a theoretical question in the field of dinosaur thermoregulation
B. (B) discuss the current state of research in the field of dinosaur thermoregulation
C. (C) resolve a dispute in the field of dinosaur thermoregulation research
D. (D) predict a future crisis in the field of dinosaur thermoregulation research
E. (E) suggest some of the possible benefits of a technique in dinosaur thermoregulation research

[单项选择]The primary purpose of the passage is to
A. (A) describe in detail how the principles of homeostasis apply to living things
B. (B) propose a modification in the most widely accepted theory of homeostasis
C. (C) compare and contrast the role of positive and negative feedback in maintaining various applied systems
D. (D) discuss the concept of homeostasis in the abstract and relate some of its most important principles
E. (E) provide examples of systems which are ruled by the principle of homeostasis