题干

2010年度南海水下考古收获颇丰,首次在南海海域确认元代青花瓷器,弥补了元代货船在南海实物史料的不足。以下不能说明的是

A:海外瓷器开始大量传入我国

B:元代青花瓷器已走出国门

C:元代海外贸易发达

D:“海上丝绸之路”繁荣

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答案(点此获取答案解析)

A

同类题4

根据短文理解,选择正确答案。

    My friend BJ Gallagher told me a great story recently, about her own experience with resentment (愤恨). She once worked as the training manager for a large newspaper, where she found the corporate culture extremely frustrating. The company was a hundred years old and their past success ha d blinded them to the need for change. Finally, after butting heads with several senior executives (主管) many times, she left the company. But she found that she hadn't left her resentment, frustration, and anger behind when she resigned.

    “I finally decided to write about my experiences and my feelings at the newspaper. I wanted to be rid of that company and those people, once and for all. So I wrote and I wrote. It wasn't just a story that poured out; it was a whole book! We called it A peacock in the Land of Penguins. I was the peacock and those newspaper executives were the penguins.”

    “It took me several more years to finally get over my negative emotions. Through a lot of soul-searching and reflection, I finally was able to let go of my resentment. I came to see that there was nothing personal in the way they treated me, and they were good people doing what they thought best for the company. I was the one who had made it personal. I thought they were making my life miserable on purpose.”

    “Finally, the time came when I decided to make amends (弥补) for the sharp, angry things I had said about the company. I invited my former boss to dinner and made my apology. It was a great healing process for me. I finally felt free of the resentment that had been eating me up.”

    “What was the final outcome?” I asked her.

    “Gratitude,” she replied. “Not only wasn't I resentful any more, I was grateful to the company. If I hadn't had those painful experiences, I would never have written a book. And the book became hugely successful – now published in 21 languages; it transformed my business.”

同类题5

阅读下面的文章,回答问题

时间去哪儿了

    “时间都去哪儿了?还没有好好感受年轻就老了……”这首歌引起了许多人的共鸣,是啊,时间到底去哪儿了?

    幼年的时光去哪儿了?我们为何很难记起3岁以前的事情?研究表明,时间的感知需要儿童的注意力和短期记忆能力的完全形成,这需要前额叶皮质和海马体发育较成熟以后才能具备。这两个区域的成熟速度较慢,往往到了童年后期才能渐渐完善。孩子们的遗忘速度远比成年人要快,所以他们的记忆更替也更快,这意味着留下童年记忆的可能性并不大。

    幼时记忆究竟从何时开始模糊,直到被永久遗忘?研究发现,早期回忆往往从7岁开始丢失。虽然不少3岁孩子能够记得前一年发生的事,但这些记忆也只能持续到五六岁。在7岁这一年中,童年记忆迅速衰退,到了八九岁,大部分孩子只能回想起童年生活35%的内容。这是因为在7岁时,人们形成记忆的方式开始改变——在那之前,儿童缺少时间和地点的观念,而在年龄较大的儿童中,回忆早期记忆的内容和形式更趋向于成年人。

    如果你到了一定的年纪,可能会有这样的感觉:小时候总是盼望快快长大,但是似乎过了很久才长了一岁,而随着年龄的增长,就感觉时间越来越快,这是为什么呢?

    首先,人体内的生物钟在逐渐变慢,实验表明,让年轻人和老年人估测1分钟有多长,结果年轻人还没有到1分钟就认为已经到1分钟的时间了;而老年长的人,则往往过了1分钟觉得这是1分钟的长。在生命的进程中,人体内的某种节律在变慢,而客观的时间没有变慢,老年人就会感觉时间过得快了。

    其次,与新鲜感能刺激人大脑记忆有关。比如我们新去一个地方时,去的路总是显得很长,回来时却似乎要短得多。因为去时路上你所看到的景色都是新鲜的,你的大脑需要对这些新鲜事物进行处理记忆,就会感觉时间过得很慢,路似乎很长。而回来时,这些景象不再是第一次体验,一切变得熟悉,大脑需要处理的事物也就少了,时间过得就快了,路也似乎短了许多。人生也是一样,小时候看这个世界都是新鲜的,外界充满了各种新刺激,这样就显得每一天都很漫长;随着年龄的增长,外界的事物已经缺少太多的新鲜感,更多的只是一种单调的重复刺激。丰富的经验使神经对于生活中的信息处理得极为快速,渐渐进入了“适应性”的状态,不但削弱了对时间流逝的感知,同时保留的记忆也信息不全,这样显得一天不经意间就过去了。

    第三,可以用“相对论”来解释,一个5岁的儿童,他会感觉过去的一年很长很长,这是因为过去的一年占他生命总过程的20%(1/5);而一个20岁的青年,过去的一年只是他生命总过程的5%(1/20);而对于一个50岁的中年人,过去的一年仅仅是他生命总过程的2%(1/50)。人越老,几个月甚至几年的光阴在其整个人生当中所占的比重就越小,同漫漫人生相比,就会觉得这些微不足道的时间过起来很快。

(选自《百科知识》2014年底4期B,有删改)