外研版高中英语选择性必修第二册Unit 5 A delicate world Part 1 Starting out,Understanding ideas,Using language课件

Unit 5 A delicate world [头脑风暴·思维发散] 　　In the fragile ecology of our planet,habitats are crucial for species to multiply and thrive.However,when these habitats face chaos due to human activities,conservation efforts become necessary and urgent.By interventions to decrease pollution and secure natu...