句型转换。

1. Many students get to school by bus. (划线提问)

    _____ do many students _____ to school?

2. Mr. Li usually has a walk after dinner. (改为一般疑问句)

    _____ Mr. Li usually  _____  a walk after dinner?

3. I'm helping my mother clean the house this afternoon. (就划线部分提问)

    _____ _____ you _____  this afternoon?

4. It is 4 kilometers from my teachers house to school. (对划线部分提问)

    _____ _____ is it from your teacher's house to school?

5. Li lei is ten years old. Lin Tao is ten years old, too. (将两个句子合并成一句)

    Li Lei is the _____ age _____  Lin Tao.

简答闸门运行工培训教材的编写应遵循哪些原则？