题目内容
【题目】将过氧化钠投入到氯化亚铁溶液中，可观察到的现象是( )
A．最终生成白色沉淀 B．最终生成红褐色沉淀
C．有黄绿色气体产生 D．无变化
【答案】B
【解析】Na2O2具有强氧化性，能将Fe2＋氧化成Fe3＋，可与Na2O2和水反应生成的OH－生成红褐色的Fe(OH)3沉淀，Na2O2与水反应产生O2，不放出黄绿色的Cl2。
【题目】书面表达
China began relaxing the controversial one-child policy in January 2014, allowing couples to have a second baby if the mother or father was an only child. China will allow two children for every couple, the state-run Xinhua News Agency reported, a move that would effectively dismantle(废除) the remnants(残余) of the country’s one-child policy that had been eased in recent years. China, now a nation of more than 1.3 billion people, instituted a policy of one child per couple to control population growth in the 1970s. The move was hailed as a major liberalization of the three-decades-old restriction. Nationwide, nearly 1 million couples eligible under the new rules had applied to have a second child, state media reported at the time. Health officials had said that the policy would lead to as many as 2 million new births when the policy change was first announced. |
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【写作内容】
1.用约30个单词概述上述图文信息的主要内容；
2.用约120个单词发表你的观点，内容包括：
（1）陈述你对文章提及政策的立场；
（2）用2—3个理由或论据支撑你的立场。
【写作要求】
1. 发表观点时必须提供理由或论据；
2. 写作过程中不能直接引用原文语句；
3. 作文中不能出现真实姓名和学校名称；
4. 不必写标题。
【评分标准】
内容完整，语言规范，语篇连贯，词数适当。
