2022英语周报高一50答案

二、读后续写范文(满分25分)Possible version 1Paragraph 1:It was time to put an end to the Magic Marty show. I walked over. "It was fishing line. " I sneeredfolding my arms. Marty subconsciously fingered the fishing line and nervously whispered, "So, are yougoing to tell people? Seeing the panic in his eyes, somehow, I hesitated. Should I_reveal the secret, Martymight lose his new_ friends. Finally, after struggling for a moment, I replied, "Nah, I won't say anythingMarty let out a relieved sigh, and I turned to walk awayParagraph 2Waitr"Marty jumped in front of me. Unexpectedly, he patted my arm, grinning. "You' ve got a prettygood eye for magic. Want to join me? "I nodded joy fully. That's how the Magic Marty and MysteriousMatt Lunch Show began. Now we've been a magic team for three months. And since I became a fellowmagician, Marty has let me in on some of his other tricks. It turns out that instead of a fake magician, Martyis a real friend.(150 words

14.D【解析】次磷酸的电离方程式为HPO2=H+H2PO2,A项错误;NaH2PO2为正盐,且属于强碱弱酸盐,其水溶液显碱性,B项错误;白磷(P4)与NaOH溶液反应生成PH3和NH2PO2,化学方程式为P4+3NaOH+3H2O=3NaH2PO2+PH3↑,C顾错误;利用H3PO2进行化学镀银反应中,HPO2被氧化为HPO,Ag+被还原为Ag,根据得失电子守恒可知1 mol H3 PC2最多还原4moAg+,D项正确。

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