我国劳动人民早在春秋战国时期就已经懂得钢铁冶炼，铁也是生活中使用最为广泛的金属，目前我国钢铁产量已经位居世界第一。下面是一组有关铁的问题，请你用所学化学知识加以回答：
（1）用赤铁矿（Fe₂O₃）炼铁的化学反应方程式是____ 。成语“千锤百炼”就源于生铁炼钢的过程，该过程中发生化学反应的化学方程式是____ 。
（2）铁可以拉成铁丝，压成铁片，这是利用了铁的____性；在公路上行驶的油罐车尾部经常有一条铁链拖在地面上，这是利用了铁的____性；家里铁制炊具要有木柄或塑料柄，这是因为铁有很好的____ 性。
（3）焊接钢管时，经常用硫酸铜溶液在钢管表面画交叉线，然后根据出现的红线对准焊接，用化学方程式表示反应原理____ 。
（4）经研究发现，长期使用我国发明的铁锅炒菜做饭，可有效地减少缺铁性贫血的发生，如果在炒菜时经常加入适量的食用醋，效果会更好，理由是____ 。
（5）某同学在做盐酸和锈铁钉反应实验时，发现含锈的铁钉表面出现了气泡，你觉得原因是____ 。

    Yesterday it was Sharon's birthday, but she had no special plans, so she decided to go home after work.She left the office arid while she was walking down the street，she was1her friends.They usually remembered her birthday but they had forgotten it for the first time this year.“I think that's2because all of them are busy at work.I guess they will call me tomorrow as it is Saturday, ”she said to herself.Then she3that she was hungry, so she bought some food in a supermarket.And when she came out of the supermarket，she saw an old woman selling4.She bought some roses(玫瑰)from her and left.

    After she got home，she took a shower.And then she had some food.“Now I feel much happier,”she said.“If5remembers my birthday, I will celebrate it by myself.”Suddenly the doorbell (门铃)rang.It was 11：00 p.m.She was surprised 6her husband was on a business trip.“7could it be?”She thought and went to open the door.

    “Happy birthday! ”A group of her friends and her husband were there! Also their hands were full of colorful packages(包裹).She couldn't8her eyes. She had everybody9her and many nice gifts.It was the most10moment (时刻)of her life.“I'm really happy to have such thoughtful friends like you.Thank you all!”Sharon said excitedly.

有同学根据自己的想像自编课本剧《跟杜小康放鸭》、《范进做了主考官》等，你另选了一篇小说，自编课本剧《              》。

以下史实违背了生产关系一定要适应生产力发展这一客观经济规律的是（  ）