英语周报九年级新目标2021-2022答案

11.C【关键能力】分析与推测能力【解题思路】A1O,+HCO,+H20一A1(OH)3↓+CO号，A1O2结合H的能力强于HC0,AIO2和HC0,发生的反应不是相互促进的水解反应，A错误；H·与CN反应生成弱电解质HCN,对应分析中的氧化还原反应不能发生，B错误；PbSO4为难溶物，C正确：MnO:与Clˉ在酸性条件下发生氧化还原反应，不能大量共存，D错误。

第一节短文改错(共10小题,每小题1分,满分10分)Michael. who now studied in our school. is my good friend. On the morning of laststudiesSaturday he asked me A spend the weekend together with himself. It was such fine weatherhimthat we had decided to hang around in the town. There were lots of pcople walk hereand there. Michael looked interesting in everything he saw. Three hours went by before weinterestedboth felt hungrily. but all the restaurant were full of guests. To our excitement. we werehrestaurantsabout to give up while two guests rose and left. We immediately sat down for our lunchhenand about an hour later we took the taxi home

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