（1）宋朝初期，人们发现江西上饶有一苦泉，蒸发这种苦泉水会得到胆矾（即硫酸铜），熬苦泉水的铁锅用久了会变成铜锅，这也是湿法炼铜的起源．写出这个反应化学方程式____ ，该反应属于____ 反应．

（2）冷的浓硫酸能使铁表面钝化而不被腐蚀，所以可以将浓硫酸盛放在铁制容器中，但某同学错把稀硫酸装入了铁制容器中，此时如遇明火，就有可能发生爆炸．其原因是（用化学方程式表示）：

①____ 　②____ ．

阅读短文，判断句子正（正确）误（错误）。

    On Sunday morning, Mr. Baker takes Mike and John to a plane. He opens the door of the plane and lets the children in. Soon the plane begins to up. John looks out of the window, “Oh, we're like birds in the sky!” He says. He looks at the houses, but they are like toy houses. Mike looks out of the window, too. He sees some buses. They look like toy buses. The people on the ground look very, very small, too. Then the plane comes down and down, and stops on the ground. Mike and John are very happy.