Dreames organize the events of the day into folders and delete what is not needed. Then we all know very little about our dream with concerned with what happened to us that day 2014 年英语专四考试听写部分答案(网友版) Limiting the growth of technology throughout history man has changed his physical environment to improve his way of life. With the tools of technology man has altered many physical features of the earth. He has transformed wood lands into farmland: He has modified the face of the earth by cutting through mountains to build roads and railways. However these changes in the physical environment have not always had beneficial results. Today, pollution of the planet. Each day, thousands of tons of gases come out of the vehicles: smoke from factories pollutes the air of industrialized areas and the surrounding countryside. The air in cities is becoming increasingly unhealthy. The pollution of water is equally harmful. In the sea, pollution from oil is killing a lot of sea plant and fish. It is