4B Unit 4 Buying fruit（Period1）
教材分析：
本单元主要是学习句子what are these/those? they're...。book4a中已经出现的句式，还可以通过单复数形式比较出它们之间的区别。
本单元主要出现的水果类单词，除grapes是第一次出现以外，其余七种均在book3a第三单元中出现过。本单元出现的是这些单词的复数字形式，涉及到词形、读音的变化，是教学中的难点。
与本单元所出现的水果类单词紧密结合的是在商店里购物的常用语can i help you? how many kilos?等。在教学中教师要注意创设购物情景，让学生熟练自如地运用这些购物的基本用语。
一. teaching contents：
part a: look，read and learn
part b: look and read
二. teaching aims：
1、听得懂、会说、会读和会拼写单词apples, oranges, bananas, peaches, grapes, watermelons, pears, some。
2、听得懂、会说句型what are these/those? how many kilos?
3、能正确理解和掌握对话内容，并能用正确的语音、语调朗读并表演对话。
4、能运用所学句型编演对话，通过合作表演培养团结协作的精神，增进师生间的情感交流。
三.teaching focal points:
aim 1﹠2
四.teaching difficult points:
aim 1﹠2
五.teaching aids：
1、教具准备：单词图片及单词卡片，有关水果实物，录音机、磁带。
2、学生准备：每个人带些水果。
六.teaching procedures：
step1：warm-up
1、greetings(师生之间常规问好)
t：good morning, boys and girls. nice to see you. how are you?
2、sing a song： they sing happily
i love apple
3、free talk
step2：presentation and practice
1. learn: fruit
the way: cai
2. revise: apple-apples, orange-oranges, mango-mangoes, watermelon-watermelons, pear-pears, peach-peaches, banana-bananas
the way: 实物
①t: look, what's this in english? oh, it's an apple.
and what are these in english? oh, they're apples. do you like apples?
ss：yes.
t： now read the word "apples" after me.
ss：apples，a-p-p-l-e-s, apples.
t：very good.
② the same way to teach: oranges, bananas, peaches, watermelons, pears。
3. learn: grape-grapes
the way: guessing game
① t: what fruit do you like?
s1: ….
t-s2-s3
t: do you know what i like? guess!
s1: …(grapes)
②read and spell
4. play a game：hot and cold
5. learn: what are these? they’re…
the way: cai
①t: are you hot?
s1: yes, i am.
t: here are some… for you.
s1: thank you.
t: let’s go to the fruit garden to see what we can buy.
look, here is an old man. what’s his job?
s: he’s a farmer.
t: right. what did he say? (welcome to my fruit garden. don’t climb trees.)..
what are these on the tree?
s: they’re grapes.
②read: these, these, what are these?
grapes, grapes, they’re grapes.
③practice and check
6. learn: what are those? they’re…
the same way as the above
7. practice: guessing game
