职称英语理工类b级,2017年职称英语理工类（C级）试题：阅读理解

第4部分：阅读理解(第31——45题，每题3分，共45分)
　　下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个选项。

　　第一篇

　　Can you hear this?

　　When something creates a sound wave in a room or an auditorium (礼堂)listeners hear the sound wave directly from the source. They also hear the reflections as the sound bounces off the walls, floor, and ceiling . These are called the reflected wave or reverberant (反射的) sound, which can be heard even after the sound is no longer coming from the source .

　　The reverberation time of an auditorium is determined by thevolume or interior size of the auditorium .It is also determined by how well orhow poorly the walls, ceiling, floor, and contents of the room (including thepeople) absorb sound. There is no ideal reverberation time .The full-soundperformance of music such as Wagner operas or Mahler symphonies should have along reverberation time. The light, rapid musical passages of Bach or Mozartneed a reverberation time somewhere between.

　　Acoustic problems often are caused by poor auditorium design .Smooth , curved (弯曲的)reflectingsurfaces create large reflections . Parallel (平行的)walls reflect sound back andforth, creating a rapid ,repetitive pulsing(有节奏的跳动)effect. Large pillars (柱)andcorners can cause acoustic shadows as the sound waves try to pass around theobject . Some of these problems can be solved by using absorbers and relectorsto change the reverberation time of a room .For example , hanging largereflectors , called clouds , over the performers will allow some soundfrequencies to reflect and others to pass yo achieve a pleasing mixture ofsound.

　　1. This Passage is mainly about

　　A sound waves and their acoustic effect .

　　B the types of music orchestras play

　　C walls of an auditorium

　　D the design of an auditorium

　　2.Wagner operas and Mahler symphonies sound fuller in an auditorium with

　　A a short reverberation time

　　B a long reverberation time

　　C an intermediate reverberation time

　　D no reverberation time

　　3. Thispassage suggests that a good auditorium should

　　A achieve a pleasing mixture of sound

　　B get rid of all reflections

　　C not have absorbers.

　　D have smooth surfaces

　　4.Large pillars and corners may

　　A make sound rich and full

　　B be cures for sound problems

　　C be sources of sound problems

　　D function as well as clouds

　　5.The word “acoustic” in the last paragraph has something to do with

　　A performance B Music

　　C sound D noise

　　第二篇

　　Outside-the-classroomLearning Makes a Big Difference

　　Puttinga bunch of college students in charge of a $300,000 Dance Marathon, fundraisersurely sounds a bit risky1.When you consider the fact that the money issupposed to be given to children in need of medical care, you might call theidea crazy.

　　Moststudent leaders don't want to spend a large amount of time on something theycare little about, said 22-year-old University of Florida student DarrenHeitner. He was the Dance Marathon's operations officer for two years.

　　YvonneFangmeyer, director of the student organization office at the University ofWisconsin, conducted a survey in February of students involved in campusorganizations2. She said the desire for friendship was the most frequentlycited reason for joining.

　　At largeuniversities like Fangmeyer's, which has more than 40,000 students, thestudents first of all want to find a way to "belong in their own corner ofcampus".

　　KatieRowley, a Wisconsin senior, confirms the survey's findings." I wanted tomake the campus feel smaller by joining an organization where I could not onlyget involved on campus but also find a group of friends."

　　All ofthis talk of friendship, however, does not mean that students aren't thinkingabout their resumes. "I think that a lot of people do join to 'fatten uptheir resume'", said Heitner."At the beginning of my college career,I joined a few of these organizations, hoping to get a start in my leadershiproles."

2017年职称英语理工类（C级）试题：阅读理解.doc

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