【教案】Unit 4 Discover useful structures（现在完成进行时）公开课教案-2021-2022学年高中英语人教版（2019）选择性必修第三册.docxVIP

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【教案】Unit 4 Discover useful structures（现在完成进行时）公开课教案-2021-2022学年高中英语人教版（2019）选择性必修第三册.docx

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PAGE 1 现在完成进行时教案 Teaching aims： Master the basic structure of the Present Perfect Continuous Tense Figure out the difference between Present Perfect Tense and Present Perfect Continuous Tense Knowledge aims: Teaching key point: Master the basic structure and the significance of Present Perfect Continuous Tense Teaching difficult point: How to distinguish the Present Perfect Tense and Present Perfect Continuous Tense Teaching Procedures: Step 1Greet the class as usual Step 2 Lead-in Read each situation and rewrite each sentence using the present perfect continuous tense. Step 3 New study 1.The basic Structure of the Present Perfect Continuous Tense 定义：现在完成进行时形式：表示动作从过去某一时间开始，一直持续到现在，或者刚刚终止，或者可能还要继续进行下去。构成：主语 + have/has + been + doing （不用于被动语态） 2.the function of Present Perfect Continuous Tense 1）.表示动作从过去某时开始一直到说话时还在进行或可能还要继续下去。通常和“for + 时间段”或 since + 时间点 (或从句 )”的时间状语连用。 2）.表示不久前刚刚结束的动作。这种意义通常根据上下文来判断。 3）.表示在一段持续的时间内动作的多次重复，而这个重复的动作在说话时并不一定在进行。 4）.表示某种强烈的感情色彩,如：赞赏、批评、愤怒等。 3. How to distinguish the Present Perfect Tense and Present Perfect Continuous Tense 1）.相同点：① 动作都发生在过去 ② 都与一段时间连用 2）.不同点：比较一：Li Jia __________ (read) a book about psychology. (She finished reading the book.) Li Jia ______________ (read) a book about psychology. (She is still reading the book.) 总结：比较二：①Have you been meeting him recently? Have you met him recently? The teacher has been telling us to be careful all the term. The teacher has told us to be careful all the term. 总结： ②A. — _____________ have you visited Egypt this month? — I have visited Egypt twice this month. B. — __________ have you been touring Egypt? — I have been touring Egypt for two month. 总结：比较三：I have waited for you for two hours. I have been waiting for you for two hours. 总结：比较四：①It’s/ It has been 3 years since they got married. It’s the first time that I have been to the Great Wall. This is the most interesting film that I have seen. 总结： They have known each other since 1970. John