重难点
重点： 能初步了解课文意思，能对故事进行简单复述。
难点： 本课生词较多，entry form, mail, helmet, pad, cycling, tire, flat tire, sign, track, skid, puddles, crash, ankle.
课前准备(含座位排列)：
教学步骤及目的
I. Review.
II. Set the scene
教师活动
Divide the class into two teams and play a game. Write /a/ and /an/ on the board as heading for two large columns.
T: You need to take turns to come up and write a word either using /a/ or /an/ from the list of things I their bedroom. Once a student has written a word, it cannot be used again.
Give points for a word with the correct in
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