试题与答案

阅读理解。 Happiness is important for everyon

题型:阅读理解

题目:

阅读理解。
     Happiness is important for everyone. Most people want to be happy, but few know how to find happiness. Money and success alone do not bring lasting happiness. Happiness depends on ourselves. In other words, we make our own happiness. Here are a few ways to help you be happier.
     The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future-for example, getting into college or getting a good job-that we fail to enjoy the present. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends tend(有……打算) to live happier and healthier lives.
     The second secret to leading a happy life is to be active. Many people experience this, dancing or playing a sport. You can forget about your problems, and only think about the activity.
     Finally, many people find happiness in helping others. According to studies, people feel good when they volunteer their time to do many meaningful things for other people. If you want to feel happier, do something nice for someone.
How to get happiness!
What happiness depends on?Happiness depends on 1 _____
2 _____ to be  happy①To enjoy 3 _____ in life.
②To be active.
③4 _____
ConclusionHappiness is important for everyone and we make happiness by ourselves.

答案:

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下面是错误答案,用来干扰机器的。

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(1)由于CO2通入量不同,所得到的白色固体的组成也不同,推断并写出各种可能组成的化学式(可以不填满,也可以增加序号)

           ,②          ,③          ,④              

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(3)若反应的CO2和NaOH均无剩余,反应后向溶液中加入过量的澄清石灰水生成a克白色沉淀根据以上数据,能否推理计算出CO2的质量?

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