My name is Sally. I am a school girl. My school is far from my home. So I can't go to school by bike. I often go there by bus. I must get up very early every morning. I have no time for breakfast at home. I often eat something for breakfast on the way(在路上). I want to go to school on time(按时).

阅读下列文字，回答文后问题。
                                                                                              嫉妒的山丘
                                                                                          ［法国］雨果
                                                                            嫉妒的山丘有一天对阿特拉斯山说：
                                                                         “你看我们的芳草地，你看我们绿油油的牧场，
                                                                            少女前来自由散步，
                                                                            唱歌，欢笑，唱过以后遐想；
                                                                            你看我们的脚，海浪吻着几乎不带吼声，
                                                                            野蛮的海洋！你看我们额头的明净，
                                                                            炎热的夏天和眼珠似的露水，
                                                                            使它戴上花冠，光彩照人！
                                                                          “但是你，巨人——究竟怎么回事，在你秃顶上，
                                                                            长着褐色眼睛的鹰不断翱翔？
                                                                            究竟是谁，像是鸟在上面筑巢的树枝，
                                                                            使你的宽肩和铁背弯成这样？
                                                                            为什么在你黑黝黝的肋部有如许黑黢黢的深渊？
                                                                            究竟是什么永恒的暴风打击你，以阴沉的电光？
                                                                            究竟是谁在你头额上放下如许的皱纹、如许的雪？
                                                                            从没有露出春天微笑的脸，
                                                                            究竟是谁把它完成这样？
                                                                            而且把它泡在什么汗水里边？……”
                                                                            阿特拉斯回答说：“那是因为我背负着一个世界。”
                                                                                                             （注：阿特拉斯是希腊神话中顶住天的巨神。）

用反证法证明命题：“三角形的内角中至少有一个不小于60度”时，反设正确的是____