每年7月14日法国国庆日，法国人都要隆重纪念这个象征自由和革命的日子。这天夜晚埃菲尔铁塔为火树银花映衬，成为欢乐的海洋。与法国国庆日相关的历史事件是(     )

Ⅰ．探究燃烧条件：若B处盛放木炭。

a．先在A处通入氮气一段时间后，在B处加热，B、C处没有明显变化；

b．待B处冷却至室温，在A处通入氧气一段时间后，B、C处没有明显变化；

c．在A处继续通入氧气，然后在B处加热，发现木炭燃烧，C处变浑浊。

①对比实验a与c，说明燃烧的条件之一是____；对比实验b与c，说明燃烧的条件之一是____。

写出实验c中有关反应的化学方程式____、____。

Ⅱ．探究一氧化碳的化学性质。

若B处盛放氧化铜粉末。在A处通入一氧化碳一段时间后，在B处下方加热，B处可观察到的现象为____，反应的化学方程式为____；尾气处理的方法为____。

     Mr. Green lives in a big city with his wife and two children. One morning Mr. Green takes his new car and washes it when a friend comes. The friend stops and looks at the new car for a minute. Then he asks, "That's a new car. Is it yours? "
"Sometimes." Mr. Green answers.
   The friend is surprised (惊奇). "Sometimes? " he says. "What do you mean?" Mr. Green answers slowly, "Well, when there is a party in town, my daughter Jean drives it. When there is a football, it's my son Jim's turn. When I washes it and it looks very nice and clean, my wife Linda uses it. And when it needs cleaning. It's mine. Choose the correct answer.