阅读下面的短文，然后将划线部分译成汉语或英语。

Do you keep fish and turtles in your classroom at school? 小题1: 你曾经在一条小船上上过课吗? Do you put the food you leave over into a compost (混合肥料) box? That’s all part of a school day at Barnard School.

Barnard School is a “green” school in America. 小题2:.This school wants to tell kids the importance of caring about the environment. The students can also learn a different way to live a healthier life.

With the special lessons, about 300 students in the school study the environment all day long.                                   小题3:而且在教室里研究鱼和其他的动物是十分有趣的. Students throw some lunch leftovers (吃剩的饭菜) into a compost box in a greenhouse. 小题4:They use the waste to help grow plants.

At Barnard School, almost everything has something to do with the environment. Students sing songs about the environment. Their art work also has something to do with the environment.                           Even their math classes are about caring about the environment. All the students have these classes happily. 小题5:I think we should learn something from this school.

循环流速趋近于（）称为循环停滞。

A、零；

B、－5。