Ⅰ：材料用具

燕麦胚芽鞘若干，中性缓冲溶液，弱酸性缓冲溶液，适宜浓度的生长素中性缓冲液，蒸馏水，锥形瓶等其他相关实验器材．

Ⅱ：方法步骤

材料一：1945年10月5日下午3时，葛敬恩率台湾警备总司令部前进指挥所官兵，来到昔日日本在台湾的总督府官邸，在那里隆重举行了升中国国旗仪式，“时隔半个世纪才重新见到祖国国旗在台湾岛上冉冉升起的广大台湾同胞，无不激动万分，流下喜悦和自豪的热泪。”

材料二：1979年1月，邓小平发表讲话指出：“用什么方式解决台湾回归祖国的问题，那是中国的内政，希望用和平方式解决台湾问题。”1984年2月，邓小平又说：“我们提出的大陆与台湾统一的方式是合情合理的。统一后，台湾仍搞它的资本主义，大陆搞社会主义，但是是一个统一的中国。”

十三年来，在格桑德吉的努力下，门巴族孩子从最初失学率30%，变成今天入学率95%。她教的孩子有6名考上大学、20多名考上大专、中专。村民们亲切地称她为门巴族的“护梦人”。这表明门巴族的乡亲们都认同这样的道理（    ）
①学习是成才的阶梯　   ②受教育能够改变人们的生活和命运　

③知识让人生更亮丽　   ④教育能为人的一生的幸福奠定基础

    The day before Christmas I pulled into a store parking lot and counted my money again. It wasn't much. I 1 being poor, not having enough to 2 my small children a few simple toys. As I was 3 I noticed the Salvation Army (救世军) bell ringer at the4. I felt bad again because I didn't feel I could 5 anything to give him. I started walking towards the entrance 6 two cars entered empty parking spaces in front of me. The first was a7, new Cadillac which became the 8 of me the moment I saw it. “How 9 I thought, “would it be to have enough money to buy a car like that!” The second car10, was an ancient car more shabby than the one I was driving.

    A man got out of the Cadillac and hurried into the store 11 past the bell ringer without a second 12. Out of the old car came a young mother with three small children following 13 behind her. Her clothes looked as 14 as her car, yet she slopped at the entrance and 15 a bill. In that second a(n)16 touched me, my envy and dislike 17 me, and all the love and joy filled me. I fished a bill out of my own purse18 it in the Salvation Army kettle, and wished the 19 a “Merry Christmas!”

    Now I felt I was a poor man hut rich on the 20. After finding a few things for my kids, I drove home with my heart singing.