四六级考试

根据网考网考试中心的统计分析，以下试题在2015-12-17日四六级考试六级习题练习中，答错率较高，为：54%
【分析解答题】Directions: In this part there is a short passage with five questions or incomplete statements.Read the passage carefully.Then answer the questions or complete the statements in less than 10 words.
Have you ever been asked to take a polygraph test for a job?A polygraph,also called a lie detector,is a device that is used to find out if someone is telling a lie.It is based on the belief that lying causes certain physical reactions.These reactions,which include a change in blood pressure and pulse rate,are measured by
the polygraph.
Lie detector tests are often used in court and in the workplace.However,a law th
at went effect in December 1988 limits the ways that employers can use these tests.Employers can no longer use them to screen(审查) people who are applying for
jobs.The only exception is for those who want government jobs as security guards or drug handlers.Also,managers can no longer ask workers to take such tests unless there is reasonable suspicion that the worker has stolen or damaged property.This will curb tests for suspected offenses,such as drug use or sexual harassm
ent,and for workers who were merely in the area of a theft.Bosses who request lie detector tests will have to tell workers why they are suspected of an offense.
Also,they may not ask questions that degrade workers,such as questions about their sex lives.
In any case,according to the new law,the test is now voluntary:You can't be fired for refusing to take it.If you have been forced to take a polygraph test,or if
you are not being given a promotion because you have refused to take the test,
you can sue the company or file a complaint with the Department of Labor.The Department of Labor can fine employers up to $10,000.
Questions:
71. What is the passage mainly about?
72. How does the polygraph work?
73. The law of December,1988 prohibits employers from examing people who apply for jobs except ____
74. Nowadays the bosses can ask the workers to take the polygraph tests only
under the condition that____
75. Under the new law,if a boss forces his worker to take a polygraph test,w
hat punishment will he get?

，答错率：54%
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