阅读下面的文字，回答小题。

      他忽然醒了。不是那种自自然然的由睡而醒，而是猛的一吓，象由一个世界跳到另一个世界，都在一睁眼的工夫里。看见的还是黑暗，可是很清楚的听见一声鸡鸣，是那么清楚，好象有个坚硬的东西在他脑中划了一下。他完全清醒过来。骆驼呢？他顾不得想别的。绳子还在他手中，骆驼也还在他旁边。他心中安静了。懒得起来。身上酸懒，他不想起来，可也不敢再睡。他得想，细细的想，好主意。就是在这个时候，他想起他的车，而喊出“凭什么？”

      “凭什么？”但是空喊是一点用处没有的。他去摸摸骆驼，他始终还不知自己拉来几匹。摸清楚了，一共三匹。他不觉得这是太多，还是太少；他把思想集中到这三匹身上，虽然还没想妥一定怎么办，可是他渺茫的想到，他的将来全仗着这三个牲口。

                                                                                                                                                                    （《骆驼祥子》节选）

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.

同学们浇树，每个人浇4棵，2个人一共浇8棵。