题目

A Thankful LifeAt many Thanksgiving dinners, everyone around the table shares something they are thankful for. Most of us can do this easily. But how can we be thankful all the time?【1】● Focus on the positive and accept the negative （消极）.No matter what happens, it's best to remember the good things. When you're around others, try to say what you like about them. By keeping good in mind, you'll give thanks for it even more than before. At the same time, you can't ignore bad things that have happened. 【2】 Before you know it, you are thankful for negative things, too.●【3】T青岛是一座美丽的海滨城市，海洋资源非常丰富。下图为海水中富含的钠元素和氯元素在元素周期表中的部分信息，下列有关说法正确的是________A. 氯是一种稀有气体元素B. 钠元素的相对原子质量是22.99gC. 钠原子的中子数为11D. 氯元素的原子序数为17