【正确答案】正确答案： Coral Reefs Coral reefs are amongst the most productive areas of the ocean. / Many people live close to coral reefs, / and local communities rely on the reefs to survive. / However, many reefs are under pressure from international fishing fleets / and from the problems posed by climate change. / A third of reef-building corals are in danger of extinction. / And reefs all over the world are in serious decline. / If they are going to see through this period of great change in the oceans, / coral reefs need to be able to recover as quickly as possible. / That means we need to reduce exploitation pressures and increase protection for reefs. /