题干

2016年8月,德国慕尼黑大学的一个研究小组开发出一种新型三维透明成像技术,可以透过动物的皮肤甚至器官直接观察到细胞结构及其相互之间的联系。该技术能让动物全身组织实现透明化,可在动物体内成像完整的神经系统或整个器官,有助于帮助研究人员更好地理解大脑与躯体之间的相互作用,以此为基础的数据库还有望大幅减少科研所需的实验动物的数量。这说明(    )

①没有不可认识的事物,只有尚未被认识的事物

②科学实验使我们正确认识客观事物

③科学研究旨在超越历史条件揭示事物发展规律

④科学的认识方法能突破人类个体认识的有限性

A:①②

B:①④

C:②③

D:②④

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A

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    In the spring of my career, I found myself questioning the choice of my life's work. The students did not appear to be motivated; the paperwork was overwhelming (巨大的) and the constant changes of educational direction were discouraging. But I just could not bring myself to do anything else. “Next year,” I would say, “next year I will switch jobs, make more money and have far less stress.” Next year just never came. I am now in my forties. And while I am no longer in the classroom or at the schoolhouse, I remain an educator. It finally dawns on me that there is no other profession that will let me change children's minds and have an impact on their future. For every student that finally “got it”, for every new teacher that said, “You inspired me to stay,” I get the raise that has never quite made it to my paycheck.

    I was on a plane recently and the flight attendant asked my name. When I told him, he said, “I knew that was you! You taught at my elementary school. You made me take my cap off in the building and told me I was handsome.” He then paused and said, “I think I kept my hat on until you saw me, just so I could get that compliment (赞美). Thank you for making me feel special.”

    We have now entered an age where nothing is private and secrets are hard to keep. Your “friends” are counted by simply clicking a button. Face-to-face interactions are seen by many as unnecessary and time-consuming. Of course, we can do anything online, including teaching and learning. But I guess I am just old school. I want to look into your eyes when the answer finally dawns on you.