题目

在做“用油膜法估测分子直径的大小”的实验中；实验简要步骤如下：A．将画有油膜轮廓的玻璃板放在坐标纸上，数出轮廓内的方格数，再根据方格的边长求出油膜的面积S。B．将一滴酒精油酸溶液滴在水面，待油酸薄膜的形状稳定后，将玻璃板放在浅盘上，用彩笔将薄膜的形状描画在玻璃板上。C．用浅盘装入约2cm深的水，然后用痱子粉均匀地撒在水面上。D．取一定体积的油酸和确定体积的酒精混合均匀配制成一定浓度的酒精油酸溶液。E．根据酒精 　　Our village carpenter, Alf Winn, came one day and made a kitchen cupboard for my wife. He made it just the right size to fill the useless space at the corner by the door. When I got home that evening, Alf was drinking a cup of tea and making out his bill for the job. 　　My wife said to me, quietly, “That's his ninth cup of tea today.” But she said, loudly, “It's a beautiful cupboard, dear, isn't it?” 　　“I'll decide about that when I see the bill.” I said. 　　Alf laughed and gave me his account for the work. I read: 　　One kitchen cupboard 10 Nov. 1975 　　Cost of materials (wood) ￡17.00 　　Paint and fittings ￡ 1.50 　　Work, 8 hours (￡1 an hour) ￡8.00 　　　　　　　　　　   Total ￡26.50 　　I took out my cheque book and my pen. I looked at the bill. 　　Alf said, “It's been a lovely day, hasn't it? Quite sunny.” 　　“Yes,” I said, “I'm glad it's only the 10th of November.” 　　“Me, too,” said Alf. “You wait-it'll be a lot colder by the end of the month.” 　　“Yes, colder and dearer! Kitchen cupboards will be ￡20 dearer on November 30th, won't they, Alf?” 　　Alf looked hard at me for half a minute. Was there a little smile in his two blue eyes? 1 gave his account back to him. 　　“If it isn't too much trouble, Alf,” I said, “Please add it up again. You can forget the date…” 　　I wrote him a cheque for ￡26.50. He was happy to accept it. Complete the sentences according to the passage. (1) A ________ is one who makes things from wood. (2) We were glad to have a ________ in that empty space. (3) I wanted to see the ________ first, then I could decide whether I liked the price. (4) According to Alf's bill, cupboards will certainly be ________ on November 30th. (5) I paid Alf ￡26.50, which was ________ too high.