用方框中所给单词的适当形式填空，使短文正确、通顺，每次限用一次：

    Everyone is talking about Bird Flu. Yes, it is a very ____ disease. It could make people sick. It will be a few months still before we have good____ for Bird Flu. In order to(为了) ____ Bird Flu, we shouldn’t touch sick chickens or their droppings(粪便). So it is a good idea for people to keep ____  from live chickens. But if you do touch an ill bird, remember to wash your hands carefully with soap(肥皂)____ away. Also, don't forget to open your windows often and ____ regularly(正常地). Getting ____ sleep is also very important for fighting ____ . Try to keep away from people who have the ____ , and always cover your mouth and nose when you  ____ or sneeze(打喷嚏).

我国女科学家屠呦呦因青蒿素的发现而获得2015年诺贝尔生理学或医学奖。青蒿素的发现被誉为“拯救2亿人口”的发现。青蒿素是从植物“青蒿”中提取出来的一种化学物质，目前是世界上唯一有特效的抗疟药。某研究小组依次对青蓠的四个生长期(幼苗期、生长盛期、花期和果期)的青蒿叶片干燥粉碎后进行了相关实验，并将实验数据作成折线图(如图所示)。请分析回答：