【答案解析】Recently the issue of the average temperature rise has aroused a great deal of concern．As can be seen from the table, the average temperature keeps rising．In 2020, there will be a rise of 1.3 to 2.1 centigrade, but in 2030, the rise will be 2.3 to 3.3 centigrade and in 2090, 3.9 to 5.0 centigrade． We all know that the various factors have contributed to this and that the rising temperature of the earth may cause problems for humans，plants, and animals． Therefore, we human beings should make efforts to prevent it from rising too fast． First, we should reduce pollution by using the Green Transport, such as bikes． Secondly, we should make full use of green energy like solar energy, wind energy．We believe that with our efforts, the earth will slow down its pace of warming．