1.2－0.8＝____

0.05×12＝____

0.24＋0.6＝____

默写填空。
①一年四季，岁序更替。诗人有意，四季有情。春天，是美丽的季节，花草睁开蒙眬的眼睛，新奇而喜悦，韩愈的“                       ，                    。”（《早春呈水部张十八员外》）报告了春天早来的消息。
②夏天，是热闹的季节，万物躁动于炎热的天气，尽情欢唱。辛弃疾的“                     ，                     。”唱出了农家丰收在望的喜庆之情。
③秋天，是抒怀的季节，秋景萋萋，游子思乡，成为主唱，然而刘禹锡的“                   ，                      。”却另辟蹊径，一反常调，断然否定了前人悲秋的观念，唱出一种激越向上的诗情。
④冬天，是静寂的季节，更是雪的世界，冷寂肃穆中常有奇景出现。岑参的“忽如一夜春风来，千树万树梨花开。”以春花喻冬雪，堪称咏雪奇句，老舍的“等到快日落的时候，微黄的阳光斜射在山腰上，                          ，                         。”更是妙语。

    In a small village, there is a teacher, a doctor, a driver, and a policeman. The four men are good friends. What are their names？One is Tom, one is Jack, one is Mike and one is John. Mike's, Jack's and Tom's children are classmates. John has no children. He teaches his friends’children at a middle school. Mike works at a police station. He loves his job very much. Jack has a car. He often drives his car to go to work or visit his friends. The doctor's house is next to the driver's, so the children often play together.

下图是氧化沉淀法生产复印用高档Fe₃O₄粉的工艺流程简图，根据要求回答问题：

解释词语

清晰