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（3）末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加ed；
（4）结尾是辅音字母+y的动词，先变y 为i再加ed。
能够运用一般过去时表达过去的事件。
The key points and difficult points
Key points
能够用一般过去时正确表达过去的事件（过去的经历），如：
How was Kangkang’s birthday party?
—Did you sing a song at the party? —Yes, I did./ No, I didn’t.
—What did Sally do? —She danced.
能够掌握规则动词变成过去式的变化规则。
2. Difficult points
熟练掌握规则动词变成过去式的变化规则。
Teaching procedures
Step 1 Lear new words
1学习生词：perform ,magic ,trick,enjoy ( 利用图片来学习生词，给学生形象直观的印象。)
2 对单词进行过去式拓展,为1a 的学习降低学习难度。
Step2: Learn the past forms of verbs.
Ask the students to look at the past forms of verbs.
Work in groups to find out how to change verbs into the past forms.
3.Do exercises.
Step3:Learn the past forms of sentences.
1.Review Present Simple .(通过复习一般现在时，观察动词的形式变化，总结句子转化的规律。)
He plays basketball every day.
He doesn’t play basketball every day.
Does he play basketball every day?
Yes,he does. No,he doesn’t.
What does he do every day.
2.Work in groups.(小组合作进行句型转换)
He played basketball yesterday.
He didn’t play basketball yesterday.