４B Unit 4教學案例

一、教學實錄
step 1.warming-up and lead-in
1.greetings.
2.daily work.
3.lead-in.
  (1) t: 分別出示單個的水果實物及相應的水果復數圖片，以：“what’s this?”“what are these?”師生對話，并請學生將圖片貼在墻上。
t: boys and girls, look! what’s this?
s: it’s a banana/pear/apple/pineapple/orange/peach.
t: what are these?
s: they’re bananas/pears/apples/pineapples/oranges/peaches.
(2) t：多媒體屏幕出示3a教材上的小韻文及圖片：“they are all very good.” they’re all fruit. they are all very good. now, let’s say the rhyme together.
s：看屏幕集體讀小韻文：they’re all very good
step 2.presentation and practice
（一）學習“what are these?”、“grapes”
1. 出示葡萄圖片，教師以“what are these?”向學生提問，引出句型教讀。
drill: these; what are these?
2. 師生對話，引出“grapes”。
s: what are these?
t: they’re grapes.
3. drill: a grape; grapes
4. 拿出課前準備的水果圖片，操練句型：s1：what are these?
s2：they’re grapes/….
（二）學習“what are those?”、“lemons”、“strawberries”
 1. 指著墻上粘貼的水果圖片，與學生對話。
t：look at the wall. what are those?
s: they’re oranges/pears/grapes.
2. 多媒體分別出示模糊的檸檬圖。t: what are those? s: they’re mangoes.在學生的應答之后，圖片變清晰，教師以“sorry, you’re wrong. they are not mangoes.”作應答。接著引導學生反問老師。t: what are those? you can use“what are those?”ask me.
3. drill: those；what are those?
4. 師生對話：s：what are those?
t：they’re lemons.
5. drill: a lemon；lemons
6. 學生連鎖操練：s1：what are those?
s2：they’re lemons.
7. 以學習“lemons”方法教學“strawberries”。
（三）sing a song, 鞏固所學句型
1.出示看圖填空。t: let’s do some exercises.
2.指名看圖做口頭填空練習。
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?”（就剛才的口頭練習配上《兩只老虎》的旋律）
4.跟旋律，齊唱“what are those?”。
（四）學習“how many kilos?”“…kilos.”
1.教師提著一袋一公斤重的草莓，以“here are some strawberries. how many kilos?”提問，然后把草莓放在臺秤上稱一下，再以“oh, one kilo.”作答。
2.drill: kilo; one kilo; two kilos; three kilos
3.多媒體出示一些水果，同時快速地閃現物品的重量, 操練: t: how many kilos? s: one kilo.
4.引導學生集體向一個學生提問“how many kilos?”t: let’s ask“how many kilos?”ok? read after me first.
5.drill: how many kilos?
6.ss: how many kilos?
s1：…kilos.
7.（多媒體分別依次出示一堆水果）t: let’s play a guessing game.
(1)同桌之間操練。s1: how many kilos?
s2: …kilos.
(2)出示正確的重量，師生對話，t: how many kilos? s: …kilos.