根据文章及首字母提示，填入恰当的单词完成短文

    It was Mr Hill's birthday yesterday. He was one h____ years old and many people came to his birthday party.

      A reporter came to the party and a____ him a few questions.

“Many people want to know h____ to live a long life," the reporter said. "Could you tell us a____ it?" "That is — I a____ get up at six in the morning," said Mr Hill," and have three meals a day. Never drink."

   “B____ my uncle also did so," said the reporter, said he o____ lived to be eighty. W____ do you think of that?

    “He didn't k____ it long enough,” was the old man's a____ ．

 2015年“中国水周”的宣传主题为“节约水资源，保障水安全”．水与人类的生活和生产密切相关．请回答下列问题：

（1）爱护水资源，一方面要节约水资源，另一方面要____；

（2）我省部分地县多年干旱，严重缺水，因地制宜利用水资源迫在眉睫．

①打井取用地下水，可用____检验地下水是硬水还是软水，日常生活中可以利用____的方法降低水的硬度；

②取用浑浊的河水，加入明矾处理后，再用活性炭处理．活性炭可以除去水中的异味和色素，这是利用了活性炭的____；

③干旱地区容易发生火灾．消防员利用高压水枪灭火的原理是____．

完成下列探究活动的相应内容。

实验材料：A．淀粉糊，B．蛋清制成的蛋花液，C．花生油。

实验仪器：试管、烧杯、温度计、酒精灯、三脚架等。

实验药品：盐酸、氢氧化钠、蒸馏水、碘酒以及新采集的纯净胃液等。

如图为汽油机工作过程中某一冲程的示意图，此冲程的名称及能量转化是（　　）