2016年8月21日，中国女排创造了一个奇迹，她们在先失一局的情况下连扳三局，以3：1逆转战胜塞尔维亚女排，这是中国女排时隔12年再次获得奥运冠军，也是她们第三次获得奥运会金牌。女排姑娘们在里约奥运会上团结拼搏，勇夺冠军，在神州大地引发强烈反响。对女排精神的认识正确的是（    ）

①这种精神是中华民族精神的丰富发展，具有鲜明的时代性   ②这种精神是中华民族整体风貌和精神特征的集中展示

③这种精神是中华民族兴旺发达的强大精神动力                       ④这种精神产生了我们的中华民族文化

根据上下文的衔接，填写在横线上的语句，排列顺序最恰当的一项是（   ）

如何建设“生态乡村”？社会各界的观点和见解不尽相同。          ；           。         。           。也就是说，“生态乡村”应当是自然生态、社会生态、经济生态综合协调发展和整体优化的乡村。

①也有人认为应当建立一套普遍适用的生态乡村规划建设标准

②有的人认为“生态乡村”就是植树种草，引水修路

③然而，乡村是一个复杂、开放的庞大系统，必须用“符合生态理念”来认识“生态乡村”④依照这些观点，“生态乡村”似乎有一个共同的形象，那就是“屋舍整齐、绿树成阴、处处美景”的现代化新农村。

   Everyone has worries. How do you deal with your worries? There is always something you can do to help yourself feel less worried. Sitting there worrying is no fun and it won’t solve your problems.
   Grades at school are often a top worry for kids. If you worry most about grades, ask yourself these questions:
   ●  Why are grades important? What do grades mean to me?
   ●  How do I get ready for class? Do I go over my notes even when there isn’t a test?
   ●  Do I have a good place to do my homework?
   ●  Have I tried different ways of studying?
   If your worry is about a fight you had with your friend, you might write down al! the things you could do-write a note to him or her, invite him or her to watch a basketball game, say sorry to him or her and so on. Once you have a list of things you could do, you can choose one thing that could get your friend back.
   You can ask for help when you’re worried. You can find someone to talk to, such as your parents, friends, and teachers.

氧元素是地壳中含量最高的元素，请回答下列问题．

（1）元素周期表中氧元素的信息如图1所示，从图中能直接获得的信息是____ ．

A．氧元素属于非金属元素

B．氧原子核内的质子数为16

C．氧元素有O₂和O₃两种单质

（2）图2是硫化氢（H₂S）在氧气中不完全燃烧反应的微观示意图．写出该反应的化学方程式____ ．