A. Workers are tired of work and want to rest.

　　B. Workers can learn some work skills on the Internet.

　　C. It makes people relax and have enough energy to do a day's work.

　　D. It contributes to improving the relations between bosses and workers.

3. All the following statements are true EXCEPT＿＿.

　　A. the research was made by the University of Melbourne

　　B. most firms allow their employees to use the Internet for fun during office hours

　　C. most people who receive the research surf the Internet for fun

　　D. popular WILB activities are watching videos， shopping online and so on

4. From the passage we can know that ＿＿＿.

　　 A. the workers engaged in WILB aren't fit for their work

　　 B. Brent Coker is a successful boss who can accept the research results

　　 C. surfing the Internet long hours for fun won't contribute to increasing productivity

　　D. the more time you spend on the Internet， the higher productivity you can get

5. Which section of a newspaper do you think the passage is taken from？

　　A. Work and life. B. Health and diet.

　　C. Advertisements. D. Science and technology.

　　B

　　"In only six days I lost seven pounds of weight. "

　　"Two full inches in the first three days！"

　　These are the kinds of statements used in magazine， newspaper， radio and television ads， promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs， slim the face， smooth wrinkles， or in some other way to add to beauty or desirability.

　　Often such products are nothing more than moneymaking things for their promoters. The results they produce are questionable， and some are dangerous to health.

　　To understand how these products can be legally

promoted to the public， it is necessary to understand something of the laws covering their regulation. If the product is a drug， FDA (Food and Drug Administration)can require proof (证明)under the Food， Drug， and Cosmetic Act that is safe and effective before it is put on the