外研版 (三年级起点)四年级下册Unit 1 I was two then.教案

这是一份外研版 (三年级起点)四年级下册Unit 1 I was two then.教案，共4页。
教学目标
1.be动词的学习,如am,is,are以及他们对应的过去式was和 were。
2.使用was,were,wasn't, weren’t谈论过去的事情以及过去和现在的变化。
教学重难点
1.重点:正确运用人称和be动词,使其搭配正确。
2.难点:使用was,were,wasn't, weren't谈论过去的事情以及过去和现在的变化
教学准备
多媒体课件
教学过程
Step 1 Revisin
1. Greetings
2.let's chant
Tall, tall. I am tall(高).
Shrt,shrt. Yu are shrt(矮).
Fat,fat. He is fat(胖).
Thin,thin. She is thin(瘦).
New,new. It is new(新的).
Old,ld. They are ld(旧的).
教师加手势与动作进行示范后学生进行展示,做到有声有色。
[设计意图]利用有韵律感的的 chant,既复习了与本课相关的旧知识,又调动了学生的积极性。
3.Let’s say and d sme actins. I say “lng” and yu say “shrt”(唱反调）
big--- new---
tall--- lng---
fat ---
Step 2 导入新知,呈现任务
1.新课呈现（new wrds）
①教师拿出自已现在的照片,自问自答。
Wh is he?He is me.
②学习单词then、nw、was
教师出示自己小时候的照片,与现在的照片作对比。
Then(在那时)I was 2.
Nw I am 43.
教师课件出示姚明小时侯现在的照片继续训练新知
Then he was shrt.
Nw he is tall.
③出示一些人年轻时与现在的照片，学习单词yung和ld。
教师课件出示成龙年轻时侯和现在的照片继续训练新知
④用同样方式学习单词hair、grandparents、were
[设计意图]通过真实的照片呈现,增加了学生与教师间的亲近,激发
了学生的情趣,学习新单词及句型变得生动有趣。
2.简单讲述was/is/am, were/are的用法。
多媒体出示图片,学生完成句子(现在与过去对比的图片)。
练习
He was thin then. Nw he is fat.
They were shrt then. Nw they are tall.
They were small then. Nw they are big.
Step 3 巩固训练,拓展提高
Ⅰ.用was,is填空
1. It ____lng then. Nw it ___shrt.
2. She yung then. Nw she ld.
Ⅱ.看一看，写一写
was were is are
1.They _____ yung then . Nw they____ ld.
2.Her hair ______ shrt then . Nw her hair __ lng .
3.He____ thin then . Nw he ___ fat.
Ⅲ．课堂活动,操练新知
1.Let’s chant
was was I was …then.
was was she was …then.
was was he was …then.
was was it was …then.
were were yu were …then.
were were we were …then.
were were they were …then.
根据图片说句。
听录音回答题。
（1）Wh is that little girl?
A. It’s Ling ling . B.It’s Amy.
（2）Ling ling was ___then.
A. ne B.tw
4.再次明确was/were的用法
was 是am 和 is 的过去式 ，were 是 are 的过去式
（1） I __ tw then.
（2） Ling ling __ fat then.
（3） They __ yung then.
（4）She ___ s cute then.
（5） He __ very naughty then.
（6） Yu __ shrt then.
5.初识“一般过去时态”（请填写出下列句子）
（1） 那时我两岁。__________________________
（2）他们那时很年轻。__________________________
（3） 那时她的头发很短。__________________________
同学们请找出每个句子的be 动词，看一看有什么共同点？
Step 4 Hmewrk:
1.跟读Mdule 5 Unit1课文每天20分钟，要注意模仿录音的语音语调哦!
2. 网上搜索明星人物的信息，把他们现在与小时候的对比变化说给父母听。