Unit 8 Have you read Treasure Island yet？现在完成时与一般过去时的区别（教案word版）

现在完成时与一般过去时的区别
教学设计
[Learning Aims]
To review the present perfect tense;
To review the simple past tense;
To learn the differences between present perfect tense and simple past tense.
[Language points]
To know how to differ the two tenses from three parts: structure, usage and time expressions .
[Difficult points]
1. Be able to understand the present perfect tense and simple past tense.
2. Learn to use these two tenses to express opinion.
[Teaching steps]
1. Lead-in
T: we have learned the present perfect tense and simple past tense. Do you know the differences between
2. Presentation：
火眼金睛
Show two sentences:
Eg: I have already seen the movie.
我已经看过这部电影了。(强调现在知道这部电影的内容了)
I saw the movie yesterday.
昨天我看了这部电影。(只强调电影是昨天看的,与现在无关）
Use the time line to differ them. And then show another two sentences to consolidate.
Eg: I have studied English since five years ago.
我已经学了五年英语。（说明现在我已经掌握了一定的英语知识，而且持续到现在还在学）
I studied English five years ago.
我五前学过英语。（只是说五年前发生过这个动作，与现在无关）
3.归纳：To differ the two tenses from three parts: structure, usage and time expressions .
Structure : 现在完成时：have/has+过去分词
一般过去时：动词过去式
Usage : 现在完成时：The result of an action or an action that started in the past and continues to the present.
一般过去时：Just talk about the past, has nothing to do with now.
Time expressions: 现在完成时：不确定的与现在相关的时间
一般过去时：具体表过去的时间
3. Exercise :
(1)分类游戏Please help the animals to find their home.(区分两种时态的标志词)
(2)实战演练To fill in the blanks.（深度区分两种时态。）
4.Summary
Understand the two tenses from three parts: structure, usage and time expressions .
教学反思
本节微课的主要教学目标是让学生在学习了现在完成时态和一般过去时态之后，理解并掌握现在完成时与一般过去时的区别。教师利用生动有趣的思维结构图从结构，用法和标志词三个方面给学生展示了这两种易混时态的区别，让学生一目了然。
此外，还让学生通过典型例句和有趣的游戏练习巩固这两种时态，从而达到学以致用。不足之处是时间较短，没有给学生更多的实际操练机会。
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