请根据提示要求，把下列汉语用“现在进行时被动语态”结构翻译成英语。

Hello, everyone! I have just come back from a wonderful trip to Xizang. It was so beautiful there that I felt I was in a fairyland. The scenery was so impressive and the air was pretty fresh and clean. 【小题1】 游客们正在被告知去细心地保护它 . However, 【小题2】 这种自然美景正在受到粗心大意的游客破坏 . Cans, plastic bags and 【小题3】 废纸依然还（正） 在被很多旅游团丢弃 as they pass through Xizang. I worry about the effect this will have on the local wildlife. How can we 【小题4】 使游客更加意识到正在对环境造成的破坏呢? We must all think about this.