小学三年级英语教案：3A Unit 9 On and off
一、教学目标：
1、能听懂、会说turn on/off …及其应答语all right./ok等。
2、能听懂、会说常见物品a light, a tv, a tap, a walkman.
3、能使用简单的祈使句表达“请别人干某事”的意思及进行应答。
二、教学重点：
1、单词：a light, a tv, a tap, a walkman, turn on, turn off.
2、日常交际用语：turn on/off…及其回答all right./ok等。
三、教学难点：
1、walkman的发音，turn on/off 的连读.
2、能在情景中灵活运用本课所学的日常交际用语。
四、课前准备：
1、教具准备：课件、磁带、录音机、实物：水龙头、随身听
2、课前准备：发给学生写有on 和off 的小卡片。
五、教学过程：
step 1. greetings
t: hello, boys and girls. nice to meet you. how are you?
step 2. revision
t: good morning,s1.
s1:good morning, miss sun.
t: let’s go to beijing. (课件出示几幅地点的图片，指图上的北京天an门)
s1: good/great, but how?
t: by plane.
work in pairs
step 3. presentation
1) t:（课前把教室的灯开好）
t: turn off the light,please.(指指灯,帮助学生完成其任务)
t:all right.
teach the word“light”（学生跟读，两两读）
t: (作关灯的动作) turn off the light.
let’s turn off the light.
ss: all right.
teach the phrase“turn off”（学生跟读，边读边做关灯的动作。）
教师引导学生说：“turn off the light,please.”
ss: turn off the light,please.
t: ok/ all right.
叫好朋友去关灯
work in pairs like this:
s1:turn off the light, please.
s2:ok/all right.
2) t show a tap to the students. what’s this?
t: it’s a tap.
teach the word: tap
work in chains like this:
s1: turn off the tap, please.
s2: all right. turn off the tap, please.
s3: ok. ……
3) point to the tv in the classroom..
t: look, this is a tv.turn off the tv,please.
s1: ok/all right.
学生跟读tv,turn off the tv.
ask the students to make up the dialogues.
4) show a walkman to the students.
t: look, this is a walkman.
t: who can turn on the walkman? （教师手指随身听）
s1:all right.(教师引导学生上台打开随身听，播放出英文歌曲，让学生跟着音乐拍手)
t: oh, let’s go on our class. who can turn off the walkman please?
(一学生上台关掉随身听)
t: teach the word “walkman” ,“turn on”
学生跟读turn on, turn on the light. turn on the walkman。
