To put out the fires , sometimes firefighters have to chop down trees to create a fire - break , to stop the fire from spreading to another hill . however , if the wind changes direction , they could be put in a very dangerous situation . when they call for help , the aviators nearby come to make a route with mud and sand for them to escape 有时候救火团他们去救火，要砍树木为了开一条路阻绝火势蔓延，让火不会转到另一座山去，不过有时候因为风向转变，所以他们的情况变得比较危险，那个时候他们会求救，那些靠近的飞行员就飞过来帮他们用土用沙，为他们铺一条路给他们逃生。
On october the 4th , 1997 , some sixty years after his first aerial combat , and one month and one day after his death from a long illness , arthur chin - the kid fighter pilot from portland , who traveled half - way around the world to defend his father ' s homeland , was posthumously honored as one of the first seven american aviators ever inducted into the american combat airmen ' s hall of fame 1997年10月4日，在他第一次空战后的六十年，在他由于长期疾病的折磨而去世后，亚瑟?陈-来自波特兰的年青的飞行员，曾飞越大半个世界来保卫他父亲的祖国，作为第一批7个人的美国飞行员曾在美国战斗空军部服役而被纪念着。
If on draws a hat a class hour , may show several attractive hats first , lets the student observe the contour , the color and so on , not only then wore on to the end lets the student manufacture the contour with each material to be more beautiful , the function entire hat , the students has understood hat ' s structure in the manufacture process , moreover displayed the imagination to manufacture the umbrella hat , the aviator ' s helmet and so on new variety 如上《画一顶帽子》一课时，可以先出示几顶漂亮的帽子，让学生观察外形、颜色等，然后戴到头上让学生用各种材料制作出外形更美、功能更全的帽子，学生们在制作过程中不仅了解了帽子的结构,而且又发挥了想象力制作出雨伞帽、飞行帽等新品种。
