近年来，南海问题成为世界关注的焦点．当我们沿着历史的轨迹追寻国家兴衰之道时，就会深深感到正是海洋主宰着一个民族的盛衰荣辱．阅读下列材料回答问题：

材料一：l500年前后，世界终于冲破茫茫大海的阻隔，开始连成一个整体，海洋时代就此开启．然而中国，自郑和死后，中国人的身影就在海洋上消失了．从此，海洋带给中国人的不再是友谊和荣耀，而是噩梦的代名词，骨肉的离散与悲欢．

材料二：在内忧外患十分严重的形势下，清朝统治集团中的一些人认识到，要镇压人民起义，抵御外敌侵略以维护清朝统治，就必须学习西方先进军事技术．于是洋务派在举办近代工业的同时，用新式枪炮、轮船装备军队，改造陆军，建立新式海军．就这样近代意义上的中国水师（海军）诞生了，然而，随着北洋水师的全军覆没，中国水师不仅输给了日本，同时再次导致骨肉分离．

由高性能复合材料制成的撑杆，是决定撑杆跳高胜负的重要因素，因此制造撑杆的材料应具有较小的密度和较好的____ 性．如图所示，运动员刘飞亮压杆腾空时撑杆弯曲了，说明力可以改变物体的____ ．

    People have always wanted to know what our future will look like. Go on reading this text, and you will know what will happen in the next fifty years.

    How can we know what the future will look like? To be able to understand the future, you have to know the past, what has taken us to where we are today and what has changed along the way? The world has changed a lot in the last 150 years, but people are driven by the same basic needs as they were 150 years ago. Will this change in the next 150 years? No.

    What inventions have really made a different in the last 150 years? In the past years, the inventions that have changed most people's everyday life are telephone, radio, television, computer, the car and the internet. Then we of course have a lot of inventions that have made life easier, like new medicine, faster cars, trains, etc. In general, people have been working hard in the last 150 years to make inventions that will make the world a better place. Since there is still much to do in the area, this will be important for at least the next 150 years.

    Why do we need to guess the future? Guessing the future is important for two reasons: First, we need to start to think about what kind of future we would like for ourselves and our children. And then we need to know what decisions we need to make today that will give us the best future.

2013年感动中国人物胡佩兰——退休后20年坚持每天出诊的仁医。她的颁奖词是：技不在高，而在德；术不在巧，而在仁。医者，       。你是仁医，是济世良药。