问题 单项选择题

取苯巴比妥0.4045g,加入新制的碳酸钠试液16ml使溶解,加丙酮12ml与水90ml,用硝酸银滴定液(0.1025mol/L)滴定至终点,消耗硝酸银滴定液16.88ml,则苯B比妥的百分含量(每ml的硝酸银滴定液0.1mol/L相当于23.22mg的苯巴比妥)

A.98.4%

B.96.8%

C.96.9%

D.99.3%

E.99.9%

答案

参考答案:D

完形填空

Who’s in control of your life? Who is pulling your string? For the majority of us, it’s other people—society, colleagues, friend, family or our religious community. We learned this way of operating when we were very young, of course. We were brainwashed. We discovered that feeling important and feeling accepted was a nice experience and so we learned to do everything we could to make other people like us.

So when people tell us how wonderful we are, it makes us feel good. We long for this good feeling like a drug—we are addicted to (沉溺于) it and seek it out wherever we can. Therefore, we are so eager for the approval of others that we live unhappy and limited lives, failing to do the things we really want to. Just as drug addicts and alcoholics live worsened lives to keep getting their fix (一剂毒品), we worsen our own existence to get our own constant fix of approval.

But just as with any drug, there is a price to pay. The price of the approval drug is freedom—the freedom to be ourselves. The truth is that we cannot control what other people think. People have their own agenda(心思,计谋), and they come with their own baggage and, in the end, they’re more interested in themselves than in you. Furthermore, if we try to live by the opinions of others, we will build our life on sinking sand. Everyone has a different way of thinking, and people change their opinions all the time. The person who tries to please everyone will only end up getting exhausted and probably pleasing no one in the process.

So how can we take back control? I think there’s only one way—make a conscious decision to stop caring what other people think. We should guide ourselves by means of a set of values—not values imposed(强加) from the outside by others, but innate values which come from within. If we are driven by these values and not by the changing opinions and value system of others, we will live a more authentic, effective, purposeful and happy life.

(Note: Answer the questions in NO MORE THAN TWELVE WORDS.)

小题1:What happens to people if they care too much for the approval of others?

小题2:The price of the approval of others is ______________

小题3:Why is it unreliable for us to live by the opinions of others?

小题4:What’s the main idea of this article?

多项选择题