下列关于化学的应用和记载，对其说明错误的是（  ）

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    Last night, on my way home I stopped because of being attracted by some hamburgers at a fast food restaurant. On my way in, a homeless man approached me and asked, “Do you have any bottles lying around?” I knew he would recycle them for a few cents, but I didn't have any, so I said no. And again he asked, “Can you spare some change ?” I smiled, and said no again. He was very respectful; he smiled back and said, “OK, thank you.” Even though he didn't have anything, he was still in good spirits. From the way he spoke I could tell he was smart.

    Then I bought one hamburger and enjoyed my meal, but in the back of my mind I wondered whether the homeless man was hungry. After I finished my meal I decided to order another one for him. At this point I didn't know if he was still around, but I tried anyway.

    At the counter I ordered a hamburger and also a hot chocolate, because it was cold outside, and I thought it would help warm him up. They delivered me the hot chocolate first and as I waited for my hamburger, I noticed the homeless man was standing right beside me. I looked at him and smiled, “This hot chocolate is for you.” He replied like a gentleman, “Thank you so much. That's very kind of you.”

    I always believe no matter how hard up I am, there are always those who are worse off than I. When you help someone, it's not always about money, it's about love. The love you give today, someone might forget tomorrow. It doesn't matter. Love anyway, because the greatest thing you can give is love.

Maybe you can not imagine what a hotel made of trash looks like. But in Rome, Italy, there is a campaign called Save the Beach that has created a hotel out of 12 tons of trash in order to raise awareness (意识) of our waste.
Save the Beach is an environmental awareness campaign set up by the makers of Corona Beer. They collected all the trash from all the beaches all across Europe. Then they built the special hotel.
It was reported that the hotel was fully booked (预约). And it was open only for four days there in early June, the same time as World Environment Day. Next to the "trash hotel"was the slogan of Save the Beach. It said, we have built the first hotel made of trash in the world. This will be the future of our holidays if we do nothing to protect our beaches.
The hotel was built just to show the damage we were causing to the sea and the coastline (海岸线). We live in the time of trash and we are running the risk of becoming trash ourselves. Do we really want such a world?
The trash hotel in Rome was just the beginning to support healthy, clean and trash-free beaches all across Europe by Save the Beach. Maybe there will be more surprising ideas in the future. Let's wait and see.