英语周报外研综合2022＿2022学年下学期第七期答案

第二节One possible version:When everything was done on the computer, I appreciatedmy work proudly. Then I watched both poems passing through theprinter, the white paper coloring with words that shaped mychildhood. These poems reminded me of my childhood that mydad spent with me. I felt that this was a gift that my dad wouldtruly appreciate, though it was cheap I was looking forward tothe dayMy dad s birthday soon arrived, and our family sat together tocelebrate it. I took out my gift and passed it to my dad. The minuteI saw the look on my dad's face as he opened those letters carefullyplaced in a cheap frame, I knew I had given the perfect gift. Mydad hugged me and said this was the best gift that he had receivedand thanked me for remembering the wonderful moments that weshared together, and we recited the poems together

29.C【解析】根据题意分析,阿托品阻止了兴奋在突触处的传递,而滴加乙酰胆碱酯酶抑制剂后,乙酰胆碱在突触间隙中的浓度增高,阿托品的麻醉作用降低甚至解除,说明阿托品没有破坏突触的结构,也没有阻止突触前膜释放神经递质或阻断突触后膜上钠离子通道,因此很可能是因为竞争性地和乙酰胆碱的受体结合,导致乙酰胆碱不能和受体结合,进而影响了兴奋在突触处的传递,C正确

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