（设计意图：玩猜一猜游戏，一方面激发学生探索的热情，另一方面为后面的教学铺垫。）
Step 2: Presentation（重点词/句型呈现）
(师出示幻灯片) Dog can play with me.
T: （出示幻灯片）This man is blind. He can’t see. (老师领学生再读一遍blind. 老师闭上眼睛作摸索状，一边说：Oh,no! I am blind. I can’t see! (用伤心的口吻说，重复两三遍)。 Now, the whole class, please show me “blind”.(老师也一边做动作)
Ss:（跟着做）I am blind. I can’t see.
T: Ok. Open your eyes please. Blind, blind. blind.
This man is blind. He can’t see. Then, who can help him? (老师指着屏幕)
Ss: The dog helps him.
T: Yes, the dog helps him.
(出示幻灯片)
Oh! The girl is deaf. She can’t hear(让学生读)
（老师捂住耳朵）deaf, deaf, deaf. (让学生跟读)
Suppose I am deaf now. I want to ask you a question: Boys and girls are you happy today?
Ss: Yes.
T: What?
Ss: Yes.
T: Oh, no! I can’t hear you!
Ok, boys and girls, show me “deaf “ (老师捂住耳朵，学生跟着做) deaf，deaf，deaf.
Ss: Deaf, deaf, deaf.
T: (师指着幻灯片) This girl is deaf. She can’t hear. This dog helps her. (划线的词语学生读)。
(出示另一张幻灯片) These firemen can’t find people. These dogs help them. Fireman. fire--man.
Ss: fireman, fire--man
T:（出示幻灯片）Dogs can help the blind man ,the deaf girl and the firemen .So we can say “dogs are very useful.”