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1、Part BLets tryLets talk教学导航一、教学目标1能根据上下文理解单词及词组different、active和go cycling的意思。2能掌握句子“Before, I was quiet. Now, Im very active in class.” “I was short, so I couldnt ride my bike well. Now, I go cycling every day.”。3灵活运用过去时和现在时表达变化。二、教学重点、难点灵活运用现在时和过去时来表达人物的变化。三、教学准备单词卡片、教学光盘和多媒体课件。教学过程Step 1：Review&L
2、ead in(复习&导入) 1教师播放本单元歌曲“Changes in me”，学生跟唱歌曲。2学生表演本单元Part ALets talk的对话。A: Tell us about your school, please.B: There was no library in my old school.A: Do you have a library now?B: Yes, there is a library in my school.3教师拿出自己两年前的照片以及现在的照片，并让学生观察有什么区别，导入新课，如“Before, my hair was short. Now, my hair
3、 is long.”，引导学生体会这两句话所描述的时间及区别。Step 2：Presentation&Practice(新课呈现&当堂操练)1教师在课件上呈现一幅Lets try部分Mike和朋友在看老照片的图片，先让学生猜猜他们在看什么，引出对话背景。引导学生看题并进行猜测“What are they talking about? What grade was Mike in?”，然后播放录音，完成听力练习。教师再次播放录音，师生一起核对答案。2教师介绍Lets talk的对话背景“Mike and his friends are looking at the old photos and
4、talking about their changes.”，并提出问题“What were they like before?”，引导学生想象他们三人以前的样子和性格。教师可给出以下提示单词或短语：short、tall、fat、thin、long hair、short hair、quiet、active、kind、funny. 3教师播放本部分课文动画，学生认真观看，获取核心信息，并根据对话内容，在相关的信息下打勾。BeforeNowshortquietactivetallshortquietactivetallMikeChen JieJohn4.学生自主阅读，提出自己不懂的词句，教师给予解释
5、。对话中“Youre wearing a pink T-shirt.”，虽然是指Mike老照片里所穿的衣服，但在谈论照片时，欧美国家比较倾向于用一般现在时或现在进行时进行描述。different和active为新词，教师需解释其意思，并提醒学生注意它们的发音。5教师播放课文录音，学生逐句跟读。Step 3：Consolidation&Extension(巩固&拓展)1学生分角色表演本课时Lets talk的对话，并在全班展示。2Talk about your friends or family members。学生拿出自己带来的旧照片，四人一组，描述自己的朋友或家人的变化。例如：S1: Bef
6、ore, I was quiet. Now, Im very active in class. How about you? S2: Before, I was short. Now, Im tall. S3: Before, I didnt wear glasses. Now, I wear glasses. S4: I had short hair before. Now, I have long hair.然后请学生展示给全班看。Step 4：Summary(小结)本课我们重点学习了用句型“Before, I was. Now, Im.”描述自己的变化。Step 5：Test(当堂微测)
7、读一读，选一选。()1.Come and look at my old photos.()2.Youre wearing a pink T-shirt.()3.We are all different now.()4.Before, I was quiet. Now, I am active in class.()5.I was short, so I couldnt ride my bike well. Now, I go cycling every day.A我以前个子小，自行车骑得不好。现在我天天骑车。B我们现在都不一样了。 C来看我的旧照片。D以前我很安静。现在我在课堂上很活跃。 E你
8、穿着粉红色的T恤衫。Answer: 1.C2.E3.B4.D5.AStep 6：Homework(作业)1听本部分录音三遍并朗读对话。2做本课时的配套练习。3预习Part BLets learn。板书设计Unit 4Then and nowPart BLets tryLets talkdifferentactivego cyclingBefore, I was quiet. Now, Im very active in class.I was short, so I couldnt ride my bike well. Now, I go cycling every day.教学反思1亮点：本课时为对话教学。教师通过歌曲和图片展示导入新课，形式活泼，内容贴近生活，学生能快速进入学习的状态。看视频，完成信息表格，加深理解对话，掌握形容词的应用。分角色表演和描述照片的活动，巩固当堂所学。2不足之处：部分学生不能灵活运用一般过去时描述自己、朋友或家人的变化。3教学建议：本节课的内容与生活息息相关，教学过程中要注意联系生活实际，让学生用所学句型描述自己的亲人、朋友或同学，充分培养学生的语言运用能力。对基础薄弱的学生要给予及时的指导。