师生交往是学校生活的重要内容。下列属于平等、民主、和谐的师生关系的有（  ）

依次填入下列横线处的词语，最恰当的一组是 (　　)
在一个______的年代，一切浮华的附和终将如水流般逝去。莫言的获奖，很难改变今天中国文学创作整体______、思想穿透力不足、精神品格不高的现实，也改变不了当下严肃文学被边缘化的______，缓解不了我们的文化焦虑，文学终将是落寞的事业。相反，对于其获奖意义的过度______，只会遮蔽我们浅薄粗俗的文化现实。

某实验校七、八、九三个年级的同学参加了今年植树活动，下面的象形图描述了该三个年级的植树情况，根据这一象形图解答：

（1）这三个年级今年共植树多少棵？

（2）请将这个象形图所表过的信息改用条形图表达．

（3）用扇形图表达三个年级植树所占比例情况．

   The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, “What's water?” No one spoke for a few minutes. Miss Li asked again, “Why don't you answer my question? Didn't I tell you what water is like?”
   Just then a boy put up his hand and said, “Miss Li, you told us that water has no color and no smell. But where can we find such kind of water？The water in the river behind my house is always black and it has a bad smell.” Most of the children agreed with him.
   “I'm sorry, children,” said the teacher. “Our water is getting dirtier and dirtier. That's a problem.”