B) to focus light with lenses
C) to handmake lenses at low cost
D) to reflect light by means of curved surfaces
33.After the passage the author will talk about ____.
A) the principles of designing lenses
B) techniques of making contact lenses
C) the design of photographic lenses
D) styles of lenses
34.Which of the following words cannot be used to describe
today's lenses?
A) More delicate. C) Numerous.
B) Cheaper. D) Unpopular.
35.Lens designers today ____.
A) have a large source of help to fall back on
B) receive a low salary
C) are less respectable than those of the past
D) are not decisive in the lens design
Questions 36 to 40 are based on the following passage:
Part Ⅰ starts with a brief introductory chapter and then takes up Style and Organization, covering them in that order because skill or lack of skill in style affects all writing, while much technical writing is so short as to offer no problems of organization. These chapters are followed by one on Mechanics, covering matters of form that are peculiar to technical writing or else crop up in it with abnormal frequency.
The chapter on Special Problems, which follows, performs a dual function. It provides writing assignments that may be used while the study of style, organization, and mechanics is still under way, and it explains ways of handling certain problems that may arise during the writing of reports, proposals, and other longer forms. We have also expanded the treatment of technical articles — recognizing the potential contribution of article writing to the career of the writer and the value of the article to science and technology.
In Part Ⅱ, a change of emphasis at one point is reflected in the new title
for Chapter 8, Nonformal Reports — Their Variation in Form and Purpose, which was formerly called Special Types of Reports. Though certain special types of reports are still discussed, additional emphasis is given to the fact that there does not exist any universally accepted set of types, under
which all reports can be classified.
Two other extensive changes have been made in Part Ⅱ: The chapter on Proposals, which first appeared in the second edition, has been rewritten and substantially expanded so as to cover that important subject more thoroughly. Also, an entirely new chapter, Oral Presentation of Technical Information, has been added. Though a study of this chapter is no substitute for training in public speaking, we believe that its recommendations can nevertheless be of substantial assistance to those who use this book on the numerous occasions when they will be called upon to present their ideas in person before a small group or a large audience.
36.The passage is most probably a preface to ____.
A) a technical writing handbook
B) a handbook on composition
C) a book on a literary writing
D) a scientific paper
37.In part I, the writer arranges the chapters in the order
