将下列陈述句改为反问句。   
(1)罪恶的子弹威胁着娇嫩的“和平之花”。 
                                                                                                                                                    
(2)他爱鱼到了忘我的境界。  
                                                                                                                                                   
(3)这样一条多灾多难的祸河，不能成为中华民族的“摇篮”。
                                                                                                                                                    
(4)乡下人家，有一道独特、迷人的风景。
                                                                                                                                                   
(5)蝴蝶在她八岁的人生划过一道极其优美的曲线。 
                                                                                                                                                  
(6)桂林山水是一幅美丽的画卷。