题目

炒菜的铁锅坏了不能用焊锡补，烧水的铁壶坏了能用焊锡补，这是因为A. 锅内有盐，与焊锡会发生化学反应B. 锅的温度可超过焊锡的熔点C. 炒菜锅上有油，锡焊不上D. 以上判断均不正确 答案：【答案】B【解析】用焊锡补过的铁壶烧水，虽然焊锡的熔点小于火炉的温度，但当烧水时，沸水的温度只有100 ℃，而且沸腾过程中，温度是保持不变的，仍为100 ℃，低于焊锡的熔点，所以焊锡不会熔化。但是炒菜锅内油的沸点为287 ℃，高于锡的熔点232 ℃，所以炒菜锅不能用焊锡补。请根据语义及提示写出单词的正确形式。（共15分，每小题1.5分）小题1:The kids wouldn't stop talking, and I was beginning to get __________ with them. (annoy)小题2:In the a______ (缺席，不在某处)of mathematics, science would not exist.小题3:Do you feel a sense of s__________  (满足) at the end of the working day?小题4:I have no __________ for Jane; it's all her own fault. (sympathetic)小题5:Last week, our school held its a __________ (每年的) athletic meets, this is my last time in the school athletic meets.小题6: To achieve the  t __________ ， work harder and harder. Never give up.小题7: The teaching of higher mathematics should __________ to the new demand and change the traditional teaching method.(adjustment)小题8: Supermarket is a big store in which you can p__________(购买) all the meat, groceries, vegetables and other items usually used in the kitchen or around the house.小题9:Whether you are a doctor, a rock star or an accountant, your goal is to secure your financial future and retire in __________.(comfortable)小题10:The hikers needed to walk faster to reach their d__________ on time.