题目

One day Mrs. Jones went __1__．When her __2__ came home in the evening，she began to tell him __3__ a beautiful cotton dress．“I saw it in a shop this morning．” She said．“And…” “And you were going to buy one．” said Mr. Jones．“How __4__ is it?” “Fifty pounds for a cotton dress? That's too __5__．” But every evening when Mr. Jones came back from work，his wife began to speak only about the dress，and at last after a week，he said，“Oh，buy the dress．Here is the __6__．” She was very __7__．But the next morning，when Mr. Jones came home and asked，5．为了研究物体吸收热量与升高温度的关系．用两只完全相同的烧杯A和B分别装入杯中质量相同的水和煤油，两个杯中分别插入相同的温度计．如图所示．加热时间（分）00.511.52煤油的温度（℃）3947556371水的温度（℃）3743495561（1）在实验中，物体吸收热量多少用加热时间反映，两杯中间用一个酒精灯在厚度均匀的铝薄板下加热的目的是使水和煤油吸收相同的热量．（2）加热一段时间开始记时，并同时测量水和煤油的温度，设每半分钟吸收的热量相同．将所测得的实验数据填写在表格中，分析实验数据，可得：相同质量的水和煤油，吸收相同的热量，煤油升高的温度与水升高的温度之比为4：3．