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本课围绕询问及回答有关值日时不同的任务分工，与学生平时的日常出行密切相关，学生更容易进入情境，更易接受新知。
教学重点、难点分析
1.重点：能够听懂、会说，并运用本单元短语；能够听懂、会说本单元核心问句及其答语；掌握频度副词usually的读音及用法。
2.难点：What do you usually do at 10 pm?及其回答 I usually go to bed；频度副词usually的用法。
教学过程
教学环节设计意图StepⅠ.Warm up
T: Good morning, class.
Ss: Good morning, Miss Li.
T: How are you today?
Ss: I’m fine, thank you. And you?
T: I’m fine, too.
StepⅡ.Presentation
T：Today I will tell you a story of a girl and her house.
(播放flash: 大扫除前 )
T: This is Lizzie, she is a song writer. She is busy and lazy, she doesn’t clean the room every day, so her room is dirty and in mess. She can’t even live in it. But one day, she changed, let’s see.
2.(播放flash: 大扫除后 )
T:Now her house is clean, and she can live in it happily.
3. (拿出一个脏、乱的教室模板)
T: Then how about our classroom? If this is our classroom, can you study in it ?
Ss: No, I can’t.
T:So, who is on duty this week?
Ss: I’m on duty.(5个值日的同学起立并回答)
(引出标题On duty,并用不同的人称替换练习on duty的用法)
4. T: Now let’s clean the classroom one by one together. From team1.(学生上讲台)
T: What do you usually do?
S: I sweep the floor.(学生在教室模板上做清理地面的动作)
（讲解usually的发音，并引出短语sweep the floor，解析sweep的发音）
5. T: It’s turn to team 2. Who can ask him/her?
S: What do you usually do?
S: I take out the trash.(做倒垃圾的动作)