Questions 16-20 are based on the following passage:

　　An American company has started testing a new program aimed at increasing security. Three workers from CityWatcher.com, a company that provides security came equipment, have volunteered to be electronically monitored. They will have a silicon chip put inside their arms. The tiny device is the size of a grain of rice and will send out radio signals. These will provide information to a central monitoring system that will give the workers access to secure areas of the workplace. The chips were originally designed for medical purposes.

　　Sean Darks, CEO of City Watcher, said the chips were like identity cards. He said the only difference is that they are inserted inside the person’s body. He added they are very different from Global Positioning Satellite technology, which allows people’s location to be monitored. Mr. Darks insisted that they were not dangerous and even decided to have a chip implanted in his own body. However, many people are worried about the issue of privacy. Many believe the technology could be abused and that new laws will have to be made. Mr. Darks said his workers can always choose to have the chips removed.

16. This passage is mainly about__.

A. the increasing security of U.S. companies.　　B. the test of a new security program

C. a new central monitoring system　　　　　　D. Global Positioning Satellite technology

17. The three workers from City Wather.com have___.

A. volunteered to provide security camera equipment　　　　B. agreed to have silicon chips planted in their brain

C. offered to be monitored in the new security program　　　D. had access to secure areas of their workplace

18. Which of the following is NOT true about the silicon chips in trial?

A. They are as tiny as a grain of rice.　　　　B. They will send out radio signals.

C. They function like identity cards.　　　　D They will be developed for medical uses.

19. The chips are different from the Global Positioning Satellite technology in that ____.

A. they are inserted into a person’s body as ID cards　　　B. they allow people’s location to be monitored

C. they provide information to a central monitoring system　　　D. they bring more danger to the carriers.

20. Many people are worried about the silicon chips because _____.

A. they are not assured of the effect of the chips.　　　　B. they cannot get the implanted chips removed

C. the new laws about the technology might be abused　　D. the new technology may intrude on people’s privacy

 Questions 21-25 are based on the following passage:

　　In fall 2006, the National Basketball Association (NBA) started using basketballs made with synthetic, or manmade, material instead of leather. They made the switch because they wanted every basketball they use to fell and bounce(彈起) the same.

　　However, some players complained right away that the new balls bounced differently and were actually harder to control than the leather ones. Dallas Mavericks owner Mark Cuban asked for help from the Department of physics at the University of Texas, The scientists investigated friction that affects the ability of a player to hold onto a ball. “The greater the friction, the better it will stick to his hand,” explains Horwitz, one of the physicists who worked on the project.

　　Tests on both wet and dry ball showed that while the plastic ball was easier to grip when dry, it had less friction and became much harder to hold onto when wet. That’s because sweating stays on the surface of the synthetic ball but get absorbed into the leather balls—an important detail for sweaty athletes

　　In January, the NBA went back to using the traditional leather balls. They aren’t perfect, but for now, that’s just the way the ball bounces.

21. The NBA started using synthetic basketballs instead of leather ones because____.

A. they wanted every basketball to feel and bounce the same

B. NBA officials wanted a switch with which to start a reform

C. they emphasized that synthetic materials are manmade

D.NBA players had used the leather balls for too long a time

22.How did some NBA players respond to the switch to synthetic balls?

A. They felt much more comfortable with the synthetic balls .

B. They thought differently about the leather balls.

C. They felt that the new balls were worse than the leather ones.

D. They believed the new balls would soon be replaced.

23 Which of the following contributes to the better control of the balls?

A. Greater friction.                     B. More ownership　　　C. Stronger affection                    D. Fewer investigations.

24. When is it harder for an NBA player to hold onto a synthetic ball?

A. When the ball is dried with a towel.　　　　　　　B. When the ball is wetted by water.

C. When tests are done on the ball.　　　　　　　　D. When sweating sticks to the ball.

25. In the last paragraph ,”that’s just the way the ball bounces” probably means_____.

A. tradition offers the best choice　　　　　B. the ball bounces ass best it can

C. the NBA made a mistake 　　　　　　　D, the ball bounces perfectly

Questions 26-30 are based on the following listing:

26.The above listing is most probably___.

A. an advertisement placed by an airline company       B. a notice placed by an international air committee

C. an information board provided by a travel agency       D. a ticketing message provided by a hotline company

27. Which of the following airlines provides the lowest price to Hong Kong ?

A. Atlantic Airline.            B. Cathay Pacific Airline.　       C. China Eastern Airline.    D. Air New Zealand.

28.If you decide to take a flight to Hanoi, you might have to pay ___ altogether the flight.

A. ￡335                        B. ￡670　　　　　C. ￡395                           D. ￡430

29.Which of the following choices can help you fly to Beijing at the lowest cost?

A.20 Aug 07-31 Dec 07 with Lufthansa.     　　　  B.20 Aug 07-31 Aug 07 with China Eastern.

C.20 Aug 07-13 Nov 07 with Singapore Airline.       D.24 Mar 07-31 Mar 07 with Austrian Airline.

30. You can call 0207 484 8925 for more information about___.

A. taxes and charges          B. tickets on other dates       C. travel agencies                D. specially designed group tours