【正确答案】How to Live a Meaningful Life? ① Among all the highlighted topics, one is 'how to live a meaningful life?' As for this topic, people's opinion caries. ② As the saying goes. 'The greatest use of life is to spend it for something that will outlast it. ' ③ I cannot agree with it more. ④ If one spends all his life pursuing benefits for himself, he will surely feel fruitless and meaningless when he gets old. ⑤ From Nelson Mandela's life, we can get that he never wavered in his devotion to democracy, equality and learning. His life has been an inspiration in South Africa and throughout the world, and his lifetime symbolizes the triumph of the human spirit. Nelson Mandela was rewarded the 1993 Nobel Peace Prize. His life, although limited, definitely lasts longer. That's a life worth living. ⑥ Therefore, if there is a way to make my life more meaningful, I believe it should be to find something I'm interested in and also helpful to others or the whole society. ⑦ Only in this way can I keep my passion throughout my life until I finally fulfill it.

【答案解析】①开门见山引出本文讨论的话题：how to live a meaningful life。 ②通过谚语，引出论点。 ③使用I cannot agree with it more来表明自己的立场。 ④采用反证法，阐释若穷尽一生只为私欲，生命将毫无意义。 ⑤通过Nelson Mandela一生所做出的贡献正面阐述论点，他的生命虽然有限，但却令世人铭记于心。 ⑥通过Therefore总结出让人生充满意义的方法：在满足个人兴趣的同时，也要造福他人或者社会。 ⑦采用Only in this way…这一倒装句型，再次强调这一方法的重要性。