材料一： 2008年5月12日下午2时28分，我国四川省汶川县等地区发生里氏8.0级的强烈地震，造成严重的人员伤亡及财产损失，地震发生后，党中央国务院迅速作出反映，在第一时间派出部队官兵、医护人员赶赴灾区，克服余震、交通、恶劣天气等造成的严重困难，从废墟中不断地救出一个个受难的群众。
材料二：国务院总理温家宝、中共中央总书记胡锦涛亲赴灾区指挥抗震救灾工作，全国掀起支援灾区热潮，国内外台胞、海内外侨胞、世界各国家地区纷纷向中国伸出援助之手，慷慨解囊，体现了“一方有难，八方支援”的国际人道主义精神。结合所学知识回答下列问题：
（1）地震发生后，同学们积极捐款，奉献爱心。这种行为体现了宪法提倡的什么公德？
                                                                                                                                                              
（2）请列举两个抗震救灾中涌现出来的先进事例。
                                                                                                                                                                
                                                                                                                                                               
                                                                                                                                                                
（3）请写出这些英雄人物身上所体现的优良品质
                                                                                                                                                               
（4）从材料一和材料二中你感悟到哪些道理？（回答两点即可）
                                                                                                                                                              
                                                                                                                                                              
                                                                                                                                                              
（5）为了倡导同学们向英雄模范学习，服务社会、立志报效祖国。××中学团委会决定向全校同学发出倡议，请你把倡议书的内容补充完整。
                                                                    倡 议 书
亲爱的同学们：
       创造美好社会是每一个人的责任，我们要向英雄模范学习，把自己培养成为 “有理想、有道德、有文化、有纪律”的社会主义事业接班人，为中华民族的伟大复兴贡献自己的力量。为此，我们倡议：
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                                                                                                                                                                　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 ××中学团委会 ××年×月×日