根据课文内容填空。 

1．朝看水东流，                       。 

2．种树者必培其根，                            。 

3．千门万户瞳瞳日，                             。 

4．只有那些勇敢镇定的人，才能                                                                            。 

5．但我深深地知道——                                                                                  怎能从狗洞子里爬出？