out to the ocean. The Boulari passage(通道)，which leads to Noumea，the capital and chief port of New Caledonia，is noted for the Amedee lighthouse.

　　The reef has great species diversity with a high level of endemism(动植物的特有分布)，and is home to endangered dugongs，a kind of sea animal，and is an important nesting site for Green Sea Turtle.

　　Most of the reefs are generally thought to be in good health. Some of the eastern reefs have been damaged by wastewater from nickel mining(镍开采)on Grand Terre. The waste from mining，agriculture，and grazing(放牧) has affected reefs near river mouths，which has been worsened by the destruction of mangrove forests，which help to keep wastes. Some reefs have been buried under several meters of wastes.

　　In January 2002，the French government proposed(提议) listing New Caledonia's reefs as a UNESCO World Heritage Site. UNESCO listed New Caledonia Barrier Reef on the World Heritage List on 7 July 2008.

28．Some of the New Caledonia's reefs have been damaged mainly because of ________．

　　A．human's activities

　　B．natural disasters

　　C．the earth's movement

　　D．its own development

　　29．Which of the following statements is TRUE according to the passage?

　　 A．New Caledonia only has an island named Grand Terre.

　　 B．The New Caledonia Barrier reef is 25 meters under the sea surface.

　　 C．Noumea is the capital and chief port of Grand Terre.

　　 D．Australia's Great Barrier Reef is the largest coral reef in the world.

　　30．The New Caledonia Barrier Reef entered the World Heritage List because ________．

　　 A．it is special in species diversity

　　 B．it will disappear in the near future

　　 C．it is covered with thick forest

　　 D．it is rich in nickel

　　31．We know from the passage that ________．

　　 A．dugongs are well protected in the New Caledonia Barrier Reef

　　 B．the Boulari passage is famous for the Amedee lighthouse

　　 C．Green Sea Turtle is in danger because of the pollution

　　 D．human beings take no measures to protect the New Caledonia Barrier Reef

　　D

My husband David was waiting at the door when our daughter Laura and I pulled in the