This is really simple but I was caught off guard（ 措 手 不 及 ）. As my son and I were1 a restaurant today, I 2  the door for several older couples going in and out. Just as I was about to let it go, I saw someone coming around the corner so I 3. She saw my little boy and told me to go first. I told her to  4because I wasn't in any 5—we're still technically on vacation. 6, we'd had our lunch.

    I've held doors 7  I was a kid because that's what my brother  8  me in and now I just do it out of 9  . Maybe people will say thanks, but most of them 10 blow past like the world 11 them something or whatever excuse they make for ignoring that  12.

    The girl, however, 13 a big smile, saying "Thank you". It's a tiny thing and she probably didn't even14 its effect. But I could suppose she  15  appreciated it. It wasn't until she was in 16  and walking past that I found she was a beautiful girl, so I'm not the first person to open a door for her. I just got back from Florida, was dirty and 17  and hadn't even showered yet. I am 99% sure it had nothing to do with my  18. I can only assume she was actually  19.

    Anyway, this probably wouldn't mean anything to most people but I valued her sincere20passing.

材料一：2018年3月11日，十三届全国人大一次会议审议并通过了《中华人民共和国宪法修正案》。

材料二：2018年3月20日十三届全国人大一次会议选举产生了国家监察委员会，与地方各级监察委员会，形成我国的监察体系，会议审议并通过了《中华人民共和国监察法》。

材料三：十三届全国人大一次会议听取并和审议了《政府工作报告》《最高人民法院报告》《最高人民检察院工作报告》，选举产生了***和中央军委主席。

材料四：十三届全国人大的代表构成变化图

结合所学的相关知识，谈谈以上四则材料分别说明了什么？