水是人类宝贵的自然资源，太子河是本溪市主要的饮用水源。
(1)自来水厂抽取河水进行净化的过程中可加入_______除去水中的异昧；
(2)家庭中常用_______的方法降低水的硬度；
(3)请写出一条防止太子河水体污染的措施______________；
(1)活性炭(或吸附剂)
(2)煮沸
(3)工业废水处理后再排放(或农业上合理使用化肥；农业上合理使用农药；不使用含磷洗衣粉；不向河里倾倒垃圾或生活污水经处理后再排放等)（合理即可）
| 补全对话，从方框中所给的选项中选择正确的句子补全对话。 | |
B: 1______ What's wrong with you? A: 2______ B: Do you have a cough? A: 3______ I cough now and then. B: How long have you been like this? A: 4______ And I'm feeling terrible now. B: Let me check you over. Oh, you have a fever, too. A: Is it serious? B: Nothing serious. Take this medicine and drink more water. A: 5______ B: Three times a day. Have a good rest and you'll be all right soon. A: Thanks a lot. B: Not at all. |