Buying fruit教学案例_四年级英语教案

    教学目标:使能够理解运用“what are these?”、“what are those?”以及“how many kilos?”询问复数物品的名称和重量。
    教学重难点:“what are these?”、“what are those?”这两个句型在实际情境中的运用。
    课前准备:水果的单复数图片,实物,磁带,句型卡片,台秤,多媒体。
    step 1.warming-up
    (一)greetings.
    (1) t: 分别出示单个的水果实物及相应的水果复数图片,以:“what’s this?”师生对话,并请将图片贴在墙上。
    t: boys and girls, look! what’s this?
    s: it’s a banana/pear/apple/pineapple/orange/peach.
    (2) t:多媒体屏幕出示3a教材上的小韵文及图片:“they are all very good.” they’re all fruit. they are all very good. now, let’s say the rhyme together.
    s:看屏幕集体读小韵文:they’re all very good
    (设计意图:与学生进行简单的日常交际用语的交流,让很快融入学习的氛围,运用旧知,链接新知,引入下一步的学习。)
    step 2.presentation and practice
    (一)学习“what are these?”
    1、 出示梨子图片,教师以“what are these?”向提问,引出句型教读。
    drill: these; what are these?
    2、 师生对话,引出“pears”。
    s: what are these?
    t: they’re pears .
    3、 拿出课前准备的水果图片,操练句型:s1:what are these?
    s2:they’re oranges/….
    (设计意图:由单数过渡到复数,衔接自然)
    (二)学习“what are those?”、“grapes”
    1、指着墙上粘贴的水果图片,与对话。
    t:look at the wall. what are those?
    s: they’re oranges/pears/apples.
    2、 多媒体分别出示模糊的葡萄图。t: what are those? s: they’re apples.在学生的应答之后,图片变清晰,教师以“sorry, you’re wrong. they are not apples.”作应答。接着引导反问。t: what are those? you can use“what are those?”ask me.
    3、drill: those;what are those?
    4、 师生对话:s:what are those?
    t:they’re grapes.
    5、连锁操练:s1:what are those?
    s2:they’re grapes.
    (三)sing a song, 巩固所学句型
    1、 出示看图填空。t: let’s do some exercises.
    2、指名看图做口头填空练习。
    what are these? they are      .                 
    what are those? they are        .               
    what are      ? they 
    what       ?            .              
    3、t:now, let’s have a rest and sing a song“what are those?”(就刚才的口头练习配上《两只老虎》的旋律)
    (设计意图:歌曲是喜欢的一种学习的方式,便于记忆。)
    4、跟旋律,齐唱“what are those?”。
    (四)学习“how many kilos?”“…kilos.”
    1、 教师提着一袋一公斤重的葡萄,以“here are some grapes. how many kilos?”提问,然后把草莓放在台秤上称一下,再以“oh, one kilo.”作答。
    2、drill: kilo; one kilo; two kilos; three kilos
    3、多媒体出示一些水果,同时快速地闪现物品的重量, 操练: t: how many kilos? s: one kilo.
    4、(多媒体分别依次出示一堆水果)t: let’s play a guessing game.
    (1)   同桌之间操练。s1: how many kilos?
    s2: …kilos.
    (2)   出示正确的重量,师生对话,t: how many kilos? s: …kilos.
    step 3.consolidation
    1、多媒体出示课文插图,师生对话,引出课题并教读。
    t: who’s she?s: she’s miss li. t: what is she doing? she’s buying fruit.
    2、drill: buying fruit
    3、t: miss li is buying fruit. let’s go with her. ok?
    看多媒体插图,听录音,模仿读课文。
    (设计意图:通过flash动画创设的集图像、声音、文字与一体的动感语言环境,激起学生交流的欲望,提高的学习兴趣。)
    4、 t:指着桌子上的一些水果,说:“here are some fruit. i’m a saleswoman. who will come to buy fruit?”与一位