题目

根据要求完成小作文，词数：30词左右。回想初中阶段，你的班级或学校举办的哪一次活动对你影响至深，说说你在活动中做了什么，并有什么样的感受或收获。 答案：【答案】English Festival is a special Festival for our school. I can't forget the 3rd English Festival last April．I took part in a chorus. The song was Big Big world. We practiced singing for a week though the weather was very hot. Then we finally performed well. I felt so happy that we had the chance to show our beautiful sound on the stage.【解析】这是一篇给材料作文。要求18．图是氧元素、铝元素在周期表中的部分信息以及四种粒子的结构示意图．根据图示回答下列问题：（1）氧原子的原子核内质子数是8，其相对原子质量是16.00（2）写出甲和乙形成化合物的化学式Al2O3（3）在A、B、C、D四种粒子中，属于同种元素的是（填字母序号）AB，该元素的名称是铝．