外研社一起四上《It didn't make gold》教学设计
教材分析：
本册教材重点是学习一般过去时，同时穿插与一般现在时、现在进行时、一般将来时的比较，目的是使学生能准确区分并掌握几种时态并能正确使用。学生在第二、四模块学习动词规则变化的一般过去时的肯定句，第三模块学习动词规则变化的一般过去时的否定句。第五模块学习动词不规则变化的一般过去时的肯定句，本模块将要学习动词不规则变化的一般过去时的否定句。
学情分析：
1.学生已经掌握动词规则变化过去式的规则（1.直接加ed；2.以e结尾，直接加d）及ed的三种发音（/t/,/d/,/Id/）。一般过去时规则变化过去式的肯定句和否定句。
2.学生对《神笔马良》的故事很熟悉。
教学目标：
1. 知识与技能
（1）听说读写用词汇：paintbrush, magic, food, real , gold
（2）听说读写用动词：have-had, take-took, make-made
（3）理解并能输出重要句型：He had a paintbrush. He helped people. The bad man didn’t have gold. He didn’t help people. He took Ma Liang’s magic paintbrush. It didn’t make gold. It made a snake.
（4）在掌握一般过去时规则变化过去式的肯定句、否定句的基础上，对比、学习并掌握一般过去时不规则变化过去式的否定句。
2. 过程与方法
采用小组合作学习和任务型教学，通过读一读，听一听，贴一贴，比一比，找一找等活动，引导学生学会用两种时态（一般现在时和一般过去时）讲述神笔马良的故事，并将重点放在一般过去时的学习使用上。
3. 情感态度与价值观
学习马良乐于助人的好品质。教育学生“赠人玫瑰，手有余香”。
重点难点：
在掌握一般过去时规则变化过去式的肯定句、否定句的基础上，对比、学习并掌握一般过去时不规则变化过去式的否定句。
教学策略：
采用小组合作学习方式和任务型教学法。
课前准备：
1. 学生的课前准备：准确掌握一般过去时规则变化过去式的肯定句和否定句。能够准确与一般现在时进行区分。
2. 教师的课前准备：准备好信封，里面装有十二个纸条和一张表格。目的是让学生在教师引导下能够用两种时态讲述马良的故事，并能够自己总结出哪些动词是不规则变化过去式的。
3. 教学环境的设计：多媒体辅助教学。
4. 教学用具的准备：两人一组所需要的信封、表格、十二张纸条
教学过程：
Step 1. Review.
Chant. Chant.
I
| yesterday | usually |
| cooked | cook |
| walked | walk |
| painted | paint |
| usually | didn’t |
| cooks | cook |
| walks | walk |
| paints | paint |
Step 2. Presentation
Yesterday，I went shopping. I bought a paintbrush. And I wonder how I can get a magic paintbrush.
I can paint a cat with my magic paintbrush. Then it will be real.
That will be fun.同时利用多媒体帮助学生理解生词paintbrush, magic, real并操练、应用。
Do you want to have a magic paintbrush? What will you do then?
解决句型：I will paint …with the magic paintbrush.
Step 3. Tasks.
Task 1
There was a boy, he had a magic paintbrush. There were many stories about him. Look at the pictures and try to order the sentences and put them in the form.
学生们观察图片，两个人一组，根据故事情节将句子排序，并注意区分一般现在时和一般过去时，按照不同时态将句子贴在相应表格内。（任务完成后展示）
| the simple present tense一般现在时 | the simple past tense一般过去时 |
| Ma Liang is a good boy. He helps people. | Ma Liang was a good boy. He helped people. |
| He has a paintbrush. It is magic. | He had a paintbrush. It was magic. |
| This old woman doesn’t have food. So Ma Liang paints food. Then the food is real. | This old woman didn’t have food. So Ma Liang painted food. Then the food was real. |
| There is a bad man. He doesn’t help people. He takes Ma Liang’s magic paintbrush. | There was a bad man. He didn’t help people. He took Ma Liang’s magic paintbrush. |
| The bad man doesn’t have gold. So he paints gold with the magic paintbrush. | The bad man didn’t have gold. So he painted gold with the magic paintbrush. |
| But it doesn’t make gold. It makes a snake. | But it didn’t make gold. It made a snake. |
再次强调我们可以用两种不同的时态讲述同一个故事，今天我们着重来学习用一般过去时讲述马良的故事。
Task 2
Match the verbs. Write out their present forms and past forms.
小组合作，找出动词对应的形式，观察变化方式后，填写完成表格。
| regular form 规则变化 | irregular form不规则变化 |
| help—helped, paint—painted, | am/is --was, have --had, take--took, make--made |
Task 3
Listen and repeat the story.
在听音跟读的过程中，解决其它生词的音、形、义、用。加深对故事理解。为输出做准备。
Task 4
Listen and find “didn’t”。 板书到黑板表格逐步完成didn’t 表格。
Task 5
Answer the questions.
Who didn’t help people? Who helped people? How did he help people? What did he have? Did the bad man like the magic paintbrush? What did he do? Did the magic paintbrush help the bad man? What did it make? 继续板书完成did表格。同时引导学生加深理解故事，简单输出信息。
Task 6
引导学生注意一般过去时肯定句及否定句的差别。
给课文重新命题。（Ma Liang / The Magic Paintbrush / A Chinese story）
Task 7
Retell the story.可以根据学生学习状况适当增加马良助人为乐的故事内容。
Step 4.Homework
Retell the story. Then write it down.
板书设计：
| did | didn’t | |
| Ma Liang | He helped people.He had a paintbrush.He painted food. | |
| the bad man | He took Ma Liang’s magic paintbrush.He painted gold. | He didn’t help people.He didn’t have gold. |
| the magic paintbrush | It made a snake. | It didn’t make gold. |
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