阅读理解。 Mistakes are a part of life. To err is human . Failure is also a part of life, not the end of life. Be happy facing life's challenges. When you make the effort to be happy and to improve your life, you are actually rewarded along the way. Life is like a game and maybe you can award (奖励) points for every effort that has been a success for you. Try it. Add ten points for every achievement. And when you have reached 50 points, just yell, 'Hey, I've won!' and give yourself a reward. If you happen to have missed your points for whatever reasons, tell yourself,'well, I tried!' which is better than not trying at all. Don't let it be said you didn't try. What is it that you want to make yourself happy? Actually happiness means different things to different people. For example, an athlete will be happy winning his first race. For a new mother happiness would be seeing her baby's first steps. Happiness for a poor person would mean having a meal just for today. So happiness for you is really something simple that you want for yourself. It really does not have to be big. As a matter of fact you should always have realistic expectations. Make the best out of every given situation. If you expect a certain result from a situation and it does not happen, don't get despondent . This just means trying harder next time. We all have in us the power to succeed. Don't let 'give up' be a part of your vocabulary. 1. By saying 'To err is human', the author means that ______. A. human beings should try to avoid making mistakes B. no one is perfect and everyone makes mistakes C. mistakes and failures make up our life D. human beings make mistakes easily. 2. What's the main idea of Paragraph 2? A. Try to reach 50 points. B. Never stop trying in your life. C. Award yourself for your success. D. Don't be afraid of missing your points 3. The author proves his idea in Paragraph 3 through ______. A. examples B. numbers C. experiments D. stories 4. The underlined word 'despondent' in the last paragraph means ______. A. frightened B. disappointed C. surprised D. excited