阅读理解（C）
    Most people want to be happy, but few know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, "Happiness depends upon ourselves." In other words, we make our own happiness. Here are a few suggestions 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快乐, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.
    Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience this dancing, or playing a sport, such as swimming. You can forget about your problems, and only think about the activity. Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.

不等式组 $\{\begin{array}{l}x+1\ge \mathrm{1 \; (1)}\\ 2(x+3)-3>3\mathrm{x\; \; \; (2)}\end{array}$ 的解集是____．

随着社会主义市场经济的发展，全国人大常委会先后通过了劳动合同法、就业促进法、劳动争议调解仲裁法。这些法律的出台(　　)
①维护了劳动者的合法权益     ②是保证劳动者主人翁地位的前提
③成为劳动者获得权利的基础   ④为劳动者维权提供法律依据

如图所示，要测量河两岸相对的两点A、B的距离，因无法直接量出A、B两点的距离，请你设计一种方案，求出A、B的距离，并说明理由．

2008年9月28日，神舟七号载人航天飞行获得圆满成功。这是我国在哪一领域取得的新成就（  )