Step Ⅳ.Discussion

  1. 教学 Part 2。教师在黑板上画图，进行解释： T：When a driver sees it，he can’t turn left.

T： When you see it on the road，it tells you to be careful. It’ s dangerous.并板书 danger[>deind*+]，领读。

  1. 用录音机（tape recorder）作教具，教学其他图形的意义。如： T：We can find the words On，OFF，PLAY and STOP on the tape recrder

and many other machines. With them，we may turn onor off the machine. I play the record by pressing the button（摁按钮）with the word PLAY.I can stop the machine by pressing the button with the word STOP.

  1. 做 Wb EX. 3