10道英语题！谢谢各位大哥了！

1 holidays that protect the environment are provided to cotourism as much as possible.
2 with ecotourism,local traditions are respected by visitors .
3 accommodation that is environmentally-friendly is offered to ecotourism visitor .
4 natural materia are used for buliding hotels,such as wood.
5 energy that does not pollute the environment are used for resorts .
6 waste water is disposed of carefully.
7 the number of visitors to an area is limited.
8 new schools and hospitals are built.
9 environment areprotected by their local people .
10 unspoilt areas of the world are visited by tourists .

6,7,8我怎么感觉本身就是被动语态啊

1.the environment as possible protected by shit from your mouth