Hi, I am a Chinese boy (中国男孩). My name is Chen Yang. My first name is Yang. My family name is Chen. My English name is Dale. I like (喜欢) red. My telephone number is 178­4267.I have a good friend. He is English (英国人)．His name is Jim Smith. Jim is his first name and Smith is his last name. His Chinese name is Huang Qiang. His phone number is 362­4597.

我们之所以珍爱生命、善待生命，是因为    (    )

 ①生命是自然界最珍贵的财富        ②每种生命都有其存在的意义和价值

 ③各种生命相互依存，相依为命     ④生命只有一次，既宝贵又脆弱

已知红磷在空气中燃烧的化学方程式为4P+5O₂2P₂O₅，从这个化学方程式中你能得出些什么信息？（至少写出二点）   

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