英语周报高二课标2021-2022学年第59期答案

书面表达One possible versionDear PeterI'm writing to invite you to see the Chinese Painting Exhibition to be held in our city.The exhibition will start at 8: 30 am on Saturday and last till 5: 00 pm on Sunday in the city museum It'ssaid that a large number of Chinese paintings, some of which are original works by famous painters like ZhangDaqian and Qi Baishi, will be on display. Besides, there will be various souvenirs to be sold. I know you re veryinterested in traditional Chinese culture, so I can t wait to tell you the news and hope we can go together.Looking forward to your reply.You

8.C【关键能力】分析与推测能力8图解剖析此操作为过滤(稀疏酸空气铁NaOH酸操作1氧调pH操作1转操作氧洗Mn,O.溶化化金1至4.02得到含Fe目的是将将Fe+Mn(OH)Mn(OHl),枝空气中的Mn2、H、浆状的Fe2氧化为转化为NaOHMn(OH)0,氧化为Mn,0,的化学S0:的溶液Fe".MnO.Fe(OH).方程式为6Mn(OH,+被还原为0,=2Mn,0+6H,0【解题思路】加入MnO,的目的是将Fe2+氧化成Fe3+以便除去F元素，A项正确；加热溶液既可以加快反应速率，又可以使Fe3+充分水解，B项正确；氧化2工序中Mn的存在形式为Mn(OH)2,应该是Mn(OH)2被空气中的02氧化，C项错误；操作1为过滤，D项正确。

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