六年级英语阅读题 A Barking Dog

 A  Barking Dog
Dad:  My dear, let’s go out for a walk.
Son:  Great. ( On their way, a dog is barking nearby.)
Son:  Oh, help! A dog is over there.
Dad:  Don’t be afraid, Tom. Don’t you know the proverb（谚语）”A barking(咆哮的) dog does not bite?”  
Son:  Yes. I know the proverb ,you know the proverb, but the dog know the proverb?

回答问题：
1. What did the son see?                                       
2. Is the father afraid of the dog?                                
3. Does the dog know the proverb?                              
4. What’s the proverb in Chinese?