学习余文森教授《有效的教学方法》,掌握提问技巧。请针对你所教学科的一节课的教学内容,设计三个问题

效教学是当前课堂教学改革乃至整个基础教育改革的热点问题、难点问题、核心问题，全国各地教育教学改革都因此把重心聚焦于有效教学。有效提问关系到有效课堂的成功与否。我认为教师有效提问应该做到趣味提问、由浅入深、人文引导。爱因斯坦说:“兴趣是最好的老师。”有了兴趣、欲望，学生则会乐学、爱学。因此，教师在教学之前，应充分的备课—备学生，备教材，尤其应注重新知识的导入。生动、有趣的问题能激起学生学习的欲望，能唤起学生思考的热情，能让学生的自主性得到最大限度的发挥。生动有趣的问题具备一种能让人乐于思考，积极解决问题的感染力。由此体现了我们所设计课堂提问的趣味性尤其重要，要站在学生的角度去预设问题，用吸引人的问题带领学生走进教学。我结合《有效的教学方法》所学的内容，对语法the Present Perfect Tense提以下几个问题：

第一个问题：Compare these sentences. Tell the meaning of the Present Perfect Tense.

1.I bought the pen in 1999, and I have the pen now.

We can say: I have had the pen since 1999.

2.I began to learn English three years ago, and I learn it now.

We can say: I have learnt English for three years.

3.My uncle began to teach at this school when he came to the town,

and he teaches at this school now.

We can say: My uncle has taught at this school since he came to the town.

作为中学生，具有一定的英语时态知识，通过已掌握的一般过去时态和一般现在时态导入到现在完成时态的概念、含义。前面一个句子是一个比较简单的问题，学生肯定能理解，然后转入到学习的内容--现在完成时态的概念。

第二个问题：Look at the following examples. Tell the structure of the Present Perfect Tense.

1.I got to know him in 2000, and I know him now.

I have known him since 2000.

2.I came to study at this school three years ago, and I study here

now.

I have studied at this school for three years.

3.My uncle began to work in the factory in 1978, and he works there

now.

My uncle have worked in the factory since 1978.

在前面一个问题的基础上，由浅到深，结合例题，让学生讨论后得出现在完成时态的结构这一结论。学生化难为易、理解后，教师立刻指出练习，给出时间让学生充分的思考、讨论、练习。

第三个问题：Look at the following examples. Tell the usage of the Present Perfect Tense. Pay attention to the time.

1. I got to know him in 2000, and I know him now.

I have known him since 2000.

2. I came to study at this school three years ago, and I study

here now.

I have studied at this school for three years.

3. My uncle began to work in the factory in 1978, and he works

there now.

My uncle have worked in the factory since 1978.

承接前面一个问题，引申出第三个问题，让学生理解现在完成时态的用法，让学生结合自己的实际经历用所学的现在完成时态表达出来，在趣味中思考问题，并进一步体会到现在完成时态在练习中的解题思路。

通过上述的提问，让学生由易到难，激发学生的主动学习和思考的兴趣。最后化浅为深，巩固理解所学知识