小学英语根据答语写问句的练习，可以帮助学生更好地理解和掌握英语的疑问句结构。以下是一些例子：

Yes, I climbed mountains last Sunday.

问句：Did you climb mountains last Sunday？

Yes, Mike often goes swimming.

问句：Does Mike often go swimming？

No, my father usually reads newspapers.

问句：Does your father usually read newspapers？

Yes, there is a cinema near here.

问句：Is there a cinema near here？

No, the post office is far from my home.

问句：Is the post office near your home？

Yes, I can play the guitar.

问句：Can you play the guitar？

No, I’m going to school tomorrow.

问句：Are you going to school tomorrow？

Yes, she’s going to the park on foot.

问句：Is she going to the park on foot？

What's that？

答句：It's a book.

问句：What is that？

What time is it？

答句：It's 3 o'clock.

问句：What time is it？

What color is your bag？

答句：It's blue.

问句：What color is your bag？

通过这些例子，可以看出根据答语写问句的关键是理解答句中的肯定或否定形式，并据此构造相应的疑问句。希望这些例子能帮助你更好地掌握这个技能。