照样子，用合适的关联词语将两句话合并成一句话。
例：他自己主动进行课外阅读。    他主动帮助别人进行课外阅读。     
       他不但自己主动进行课外阅读，而且主动帮助别人进行课外阅读。   
1．有女孩的人家差不多都逃到外地去了。    这里荒无人烟。 
                                                                                                                                
2．我想尽了办法。    我不能解决这个问题。   
                                                                                                                                
3．人类不注意环保。    人类将失去地球。 
                                                                                                                                
4．你的成绩很好。    你不能骄傲。   
                                                                                                                                
5．周总理离开了我们。    周总理的光辉形象永远活在我们心中。
                                                                                                                                 
6．今天不是张峰值日。    今天一早，张峰就到学校来打扫卫生。