阅读下面短文, 在空白处填入 1 个适当的单词或括号内单词的正确形式。Coral reefs are being planted in the deep seabed around Hainan Province, a famous tourist destination in China, as part of efforts (preserve) the maritime (海上的) environment and promote green development. Coral reefs cover about 2 percent of the area of sea floor and provide habitats for about 25 percent of (create). They play important role in stabilizing ecology of the ocean, according to experts. They work as (extreme) natural barriers to weaken the impact of waves crashing on the shore. However, survival of coral reefs have been challenged due changes in the maritime environment. In 2019, the Hainan South China Sea Institute of Tropical Ocean initiated a program to plant (million) of coral reefs through professional breeding technology. " It' s like (plant) trees under the sea, " said Chen Hong, director of the institute. " Though they grow slowly, the seedlings no (big) than fingernails may become coral reef size can surpass several soccer fields. " In recent years, the team has planted over 200, 000 coral reefs around Sanya city and Danzhou city. That quantity (break) the national record of coral reefs transplantation for amount and survival rate.
答案:【1】to preserve【2】creatures【3】an【4】extremely【5】to【6】millions【7】planting【8】bigger【9】whose【10】broke/has broken