将一根光亮的铁丝放入蓝色的硫酸铜溶液中，过一会儿，发现铁丝表面出现了红色物质。
（1）写出发生反应的化学方程式 。
（2）由此判断，金属的活动性：Fe Cu。（用“＞”、“＜”或“＝”填空）
（3）在化学反应中，元素化合价升高的反应物是还原剂，元素化合价降低的反应物是氧化剂。试判断上述反应中，氧化剂是 。
（1）Fe+CuSO4===FeSO4+Cu
（2）＞
（3）CuSO4
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| Once upon a time,there was a child ready to be born. So _ 1_ he asked God,"they tell me you are sending me to _ 2_ , but being so small and helpless, _3 am I going to live there?" " _4 _ the many angels (天使) , I chose one for you. She will be waiting for you and will take care of you. "God replied. "But here in Heaven(天堂), I do _ 5_ else but sing and smile! That's enough for me to be happy. " God said,''Your angel will sing and smile for you every day. And you will feel your angel's love and be _6 _ . " The child said , "And how am I going to be able to understand when people talk to me _7 _ I don't know the language that men speak?" God told the child,''Your angel will tell you the most beautiful and sweetest words you will ever hear, and with _8 _ patience(耐心)and care,your angel will teach you_ 9_ . " The child said,"I've 10_ that on the earth there are bad men. who will protect me?" God said,"Your angel will protect you _11_ it means risking her life(冒生命危险). " "But l will always be sad because l will not see you any more. " "Your angel will always talk to you about _12 _and in fact , I will always be next to you. " At the moment there was much peace(静寂)in Heaven,but voices from the earth could already be heard , and the child,in a hurry, asked,''Oh , God,if I am about to 13_ now, please tell me my angel's _14 _ !" "It is not hard to remember," God replied _15_ . "You will call your angel Mommy. "
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