题目

短文填空。 visit, rain, umbrella, quick, I, bored, prepare, friend, be, terrible It was Saturday yesterday, so we had a day off. But I didn’t really enjoy 【1】 . I wanted to go out to play sports, but the weather was very 【2】.It rained all the morning. So I stayed in the house and【3】for the math test. When it stopped【4】,I went to the supermarket and bought a gift for my 【5】birthday. After getting back home. I ate lunch【6】.After that, my family wanted to 【7】my grandparents. I went with them by car. When we got to grandparent’s home, they【8】not at home. T为了测定某含杂质7%的黄铜样品中铜的质量分数（杂质中不含铜、锌元素，杂质不溶于水，不与其它物质反应，受热也不分解），某化学小组进行了如下实验：（1）配制上述质量分数为14.6%的稀盐酸，需要质量分数为36.5%的浓盐酸的质量是　_______．（2）发生反应的化学方程式为________．（3）根据已知条件列出求解100g该黄铜样品中锌的质量（X）的比例式为________．（4）该黄铜样品中铜的质量分数是________　．（5）向过滤后所得滤液中加入87.4g水，则最终所得溶液之中溶质的质量分数是　________　．（6）欲将黄铜样品中的铜转化为铜盐，可将过滤后所得的不溶性物质洗涤、烘干．然后在空气中加热，充分反应，则可得到含杂质的氧化铜的质量是_______，再经过某些反应操作就得到了所需铜盐．