题目

阅读下列短文并按要求回答问题（共3小题，满分7分） In China, more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don’t know how to save time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up(熬夜) very late. Some students have to get 以Fe、CuO、H2SO4为原料，用两种方法制取单质铜，请写出有关的化学反应方程式： （1）制法一：__________________；_________________________。 （2）制法二：___________________；_______________________。