试题与答案

新鲜水果、蔬菜、乳制品中富含的维生素C具有明显的抗衰老作用.某课外小组利用碘滴定

题型:选择题

题目:

新鲜水果、蔬菜、乳制品中富含的维生素C具有明显的抗衰老作用.某课外小组利用碘滴定法测某橙汁中维生素C的含量,其化学方程式如下:下列说法正确的是(  )

A.上述反应为取代反应

B.维生素C在酸性条件下水解只得到1种产物

C.维生素C的分子式为C6H7O6

D.维生素C不可溶于水,可溶于有机溶剂

答案:

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根据所读内容在文章后图表中的空格里填入最恰当的单词。注意:每空1个单词。
Introduction to anger
Anger is a natural reaction which comes out when we feel that we have not been given a fair treatment. The positive side of this negative emotion is that it has helped us to evolve as humans and cope in a better manner with our surroundings. However, it tends to become a problem when we fail to control it. Many a time it happens that your anger has hurt others or has spoiled one of your relationships for which you regret later. It has some bad effects on the health, too.
We should control anger so that it does not cause harm to us or to those around us whom we love. One of the best ways to control anger is to get help from others. If you feel that you are unable to manage your anger, it can make you more upset. So tell someone that is close to you, a friend or a family member, about your problem. When you discuss a matter with others, there is a better chance of finding a solution to your problem. Besides, there are no better stress relievers than humor. When you feel that it is because of stress that your anger is becoming unmanageable, you can use humor. It can help you look at difficult things in a lighter way and you will feel better about the things around you.
Anger tends to make us have a lot of negative thoughts. Therefore, we have to change the negative thoughts into positive ones. For this you have to first refuse all the negative thoughts that are in your mind one by one. This can be done with a lot of practice. Once you are successful in that, you have to maintain your focus only on the positive things of life.
Meditation (冥想) is an excellent anger management technique. In addition, what we do is disconnect ourselves from the outer world and focus all our attention into the inner world. This helps us develop a sense of controlling our thoughts that tend to cause anger.
小题1: ______
Anger is a natural reaction which comes out when we have been treated 小题2:______.
Positive sides
﹡Help us evolve as humans.
﹡Help us deal with our surroundings 小题3:_____.
小题4:______  sides
﹡Hurt others.
﹡Spoil your 小题5:______.
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小题7:______ member.
Use 小题8:_______
It can help you see difficult things in a 小题9:_________ way.
Think 小题10:______
Refuse all the negative thoughts and focus only on positive things.
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补写出下列名篇名句中的空缺部分。(6分)

(1)子曰:“           ,于我如浮云。”(《论语·述而》)

(2)穷且益坚,                    。 (王勃《滕王阁序》)

(3)                   ,两朝开济老臣心。(杜甫《蜀相》)

(4)             ,却话巴山夜雨时。(李商隐《夜雨寄北》)

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