老师在备课的英文

• the teacher is preparing the lesson

• 在:    exist; be living
• 备课:    prepare lessons
• 包括老师在内:    including the teacher/the teacher included
• 对于老师在课堂中主体作用的思考:    reflection on the teacher as classroom leader
• 在备战:    under arms

例句与用法

1. Our teacher was preparing the lessons when i came into the office
   我进办公室时，我们的老师在备课。