2. Which of the statements about "Ravleigh waves" is true？

　　 A. Rayleigh waves are massive vibrational waves that usually cause quakes or tsunamis.

　　 B. Rayleigh waves move on the ocean surface at a speed ten times that of sound waves.

　　 C. Rayleigh waves can be felt both by animals and human beings.

　　 D. Rayleigh waves， just like infrasonic sound， can only be felt by animals.

1. Why did few animals at Yala die when the tsunamis that caused a huge number of human deaths hit？

　　 A. Because the animals were staying at a higher place in the park.

　　 B. Because the animals were able to run much faster than human beings.

　　 C. Because human beings cannot hear the infrasonic sound.

　　 D. Because the animals might have picked up the danger signals and ran away.

5. C　 推理判断题。其他选项与文章内容不符。

4. D　 细节理解题。从最后一段第二句…pointed out that file sharing is a good way to promote pop singers.可知正确答案。

3. A　 细节理解题。从第三段最后一句可知正确答案。

2. C　 细节理解题。根据第一段的句子Lawsuits have been filed against four websites offering free downloads.可知这四家网络公司被起诉的原因。

1. B　 主旨大意题。其他选项都太片面，只有B能较好概括文章的内容。

5. It can be inferred from the text that _________.

　　 A. Web companies are still ignoring the copyright laws.

　　 B. Teenagers haven't got money to buy CDs.

　　 C. Teenagers are probably still downloading free music.

　　 D. Teenagers prefer CDs with copyright to pirated music.

　　 「解析」

4. What's the advantage of tile sharing for recording companies？

　　 A. Getting more money from web companies.

　　 B. Enabling people to download favorite songs.

　　 C. Helping to improve the music.

　　 D. Making pop singers more popular.

3. How do some of the teenagers feel while downloading free music after the lawsuit？

　　 A. A bit guilty.　　　　B. A little sad.　　　 C. Extremely angry.　 D. Awfully sorry.