traditional Japanese dishes such as sushi and sashimi. A falling population of bluefin tuna could cause the fish to disappear from the Pacific Ocean for good, IUCN experts warn. To prevent extinction, they say limits must be placed on fisheries.

　　Bruce Collette is the IUCN's tuna and billfish specialist. "The Pacific bluefin tuna market value continues to rise，" Collette said, adding that we need to reduce the number of catches of young fish to improve the species' situation.

　　The Chinese puffer fish is now listed as "critically endangered". The fish is found in several protected areas in the Pacific Ocean near China with measures in place to protect it. More needs to be done to prevent extinction, IUCN experts say.

　　The American eel has joined the Japanese eel on the endangered list due to pollution, habitat loss and overfishing. The American eel is in demand in East Asian food markets as an alternative (替代) to the endangered Japanese eel.

　　语篇解读：本文是说明文。太平洋蓝鳍金枪鱼、美洲鳗和中国河豚由于过度捕捞，濒临灭绝。

　　1．What do Julia Marton­Lefèvre's words in Paragraph 3 suggest?

　　A．Our planet is always changing.

　　B．The IUCN can't meet people's needs.

　　C．Many animal species are already extinct.

　　D．Human behavior is damaging animals' lives.

　　解析：选D　推理判断题。由第三段中的"our planet is losing its diversity of life, largely due to our destructive actions to satisfy our growing needs"可推断，Julia Marton­Lefèvre认为我们的星球正在失去物种多样性，这在很大程度上是由我们为了满足日益增长的需求而做出的破坏性行为所造成的。

　　2．According to Julia Marton­Lefèvre, policy makers should ________.

　　A．carry out a strict policy

　　B．set up more protected areas

　　C．manage protected areas directly

　　D．prevent people from catching fish

　　解析：选B　细节理解题。由第四段中的"Marton­Lefèvre called for policy makers to increase the number of protected areas and to see that they are well­managed"可知，Julia Marton­Lefèvre呼吁政策制定者要增加保护区的数量，并且确保保护区得到很好的管理。

　　3．To save Pacific bluefin tuna from extinction, we should ________.

　　A．stop people from eating them

　　B．develop the bluefin tuna market

C．forbid overfishing and protect young fish