求翻译：精心预设。课堂上精确而恰如其分的评价语能自然地承上启下，引导学生拾级而上，当然，前提是教师要熟悉了解学生。是什么意思？

The elaborately default. Accurate and appropriate evaluation language class natural nexus to guide students up the stairs, of course, that teachers should be familiar with students.

It is preset. Accurate and appropriate classroom assessment in Arabic to the natural linking, and guide the students and, of course, the prerequisite is that you want to become familiar with student teachers.

In advance supposes carefully.In the classroom precise appropriatelies the appraisal language can link the preceding with the following, to guide the student naturally to go up steps on, certainly, the premise is the teacher needs to understand the student familiar.

Carefully preset. Accurate and appropriate evaluation on classroom language naturally interlinked and guide students on the level by level, of course, only if teachers are sensitized to students.

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