【设计说明】：拓展延伸，鼓励学生从身边做起，成为一个积极的志愿者。
Do a survey among students about how many of them have ever worked as an volunteer.
网络办公的程序既包含了桌面办公套件的功能，又能够利用网络与生俱来的特性将其功能进行拓展延伸。
A Web office both embraces the functionality of desktop office suites (e.g. Microsoft office) and extends it by using Web Native features.
它的基本程序是：课前目标领悟—课前问题导学探索—课堂问题学习研讨发现—课内问题训练巩固—课后问题拓展延伸。
The steps are : comprehend the aims before class----question investigation---question study and discovery---practice and consolidation in class---problem extention after class.
它的基本程序是：课前目标领悟—课前问题导学探索—课堂问题学习研讨发现—课内问题训练巩固—课后问题拓展延伸。
The steps are : comprehend the aims before class----question investigation---question study and discovery---practice and consolidation in class---problem extention after class.
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