根据句意及首字母或汉语提示完成单词。 1. H can lay eggs, but cocks can’t. 2. He got wet in the rain because he didn’t have an u . 3. You can ask (任何人)here for help if you are in trouble. 4. Most people (不喜欢)selfish men. 5. Both of John’s parents are (商人). They’re very busy. 答案:1. Hens 2. umbrella 3. anyone 4. dislike 5. traders(1)用化学符号表示:①2个铝原子 ;②3个硫酸根离子 ;③氯化铁 。(2)某元素原子结构示意图如图所示,该元素核电荷数为 ,属于 元素(填“金属”或“非金属”)。