资源简介

(共34张PPT)
Plant life
Unit 4
外研版·四年级下册
第2课时(Start up)
Review and sing
I’m a little seed,
Small and cute.
Put me in the earth,
And watch me grow.
I’m getting big.
Look at my roots.
My stem is thin.
My leaves are green.
Now I’m growing up,
Big and strong.
My yellow flower,
Dances in the sun.
Let’s think:
What’s the song mainly about
这首歌主要讲了什么？
The life of a sunflower
“向日葵的一生”
向日葵
Let’s enjoy
Do you like plants What plants do you want to grow
Free talk
Start up
What can you see from the picture
Who are they
What are they doing
Let’s watch
Watch the story and get the main idea.
Read and answer
What are they doing
1
What are you doing
We’re digging.
挖，掘
They’re digging.
dig→digging
1
For what
What are they digging for
They’re making a small garden for the class.
“for what”通常用于询问做某事的目的或原因
We’re making a small garden for the class!
2
What kind of seeds have they got
Listen to the tape and fill in the blanks.
I’ve got _____ seeds.
I’ve got _______seeds.
I’ve got _________seeds.
I’ve got ________ seeds.
bean
tomato
cucumber
sunflower
3
Whose seeds are growing
Lingling’s seeds, Daming’s seeds and Amy’s seeds.
Yes, they are. Look!
Are your seeds growing
Two weeks later
How are they feeling
They feel happy.
snack
4
Why don’t Sam’s seeds grow
为什么Sam的种子不生长呢？
Because he get the sunflower seeds from the snack(零食).
It’s raw(生的).
Oh, Sam. These seeds can’t grow!
Why aren’t my seeds growing
1
询问某种情况没有发生的原因：
Why do/does not +主语+动词原形（+其他）
5
What will Sam do
Let me plant a new one.
He will plant a new one.
Will his sunflower seeds grow this time
Yes, they will.
Read again and match.
2
Listen and imitate
What are you doing
We’re digging.
Sam’s seeds
For what
We’re making a small garden for the class!
1
听录音，跟读音频，并划线描述正在进行的动作。
2
I’ve got tomato seeds.
I’ve got bean seeds.
I’ve got cucumber seeds.
I’ve got sunflower seeds.
Yes, they are. Look!
Are your seeds growing
Two weeks later
3
snack
4
Oh, Sam. These seeds can’t grow!
Why aren’t my seeds growing
5
Let me plant a new one.
What are you doing
We’re digging.
Are your seeds growing
Yes, they are.
Tips:
dig→digging
make→making
①询问某些人正在做什么
—What are+主语（复数）+动词-ing形式
—We’re/They’re+动词-ing形式（+其他）.
问句是由what引导的现在进行时的特殊疑问句，用来询问多个人正在做什么
问句和答语中的主语为复数形式，be动词用are
句型
讲解
—What are you doing
你们正在做什么？
—We’re watering the flowers.
我们正在浇花。
例句
—What are the boys painting
男孩们正在画什么？
—They’re painting sunflowers.
他们正在画向日葵。
②确认某些事物的动态
—Are+某些事物+动词-ing形式（+其他）
—Yes, they are./ No, they aren’t.
问句是以be动词are开头的一般疑问句，用来确认某些事物的动态
问句中的主语是某些事物，在答语中要用they指代
句型
讲解
—Are the tomatoes growing 西红柿长大了吗？
—Yes，they are.
是的，它们长大了。
例句
—Are the bananas getting yellow 香蕉变黄了吗？
—No, they aren’t.
不，它们没有变黄。
plant-planting
do-doing
ride-riding
make-making
dig-digging
run-running
末尾+ing
去e+ing
双写末尾辅音字母+ing
以不发音的字母 e结尾的动词，
以重读闭音节结尾且末尾只有一个辅音字母的动词
一般情况下
动词V-ing的变化规则
Watch and dub
Role-play(角色扮演)
Work in groups of five and act out the story.
五人一组，进行人物角色扮演，演绎故事。
Fluently 流利地
Emotional 有感情的
Vividly 生动地
Look and write.
3
They __________ (plant) tomato seeds.
— ____ he ___________
(water) the plants
— Yes, he is.
— What _____ they _______
(do)
—They’re picking grapes.
Let’s check
plant tomato seeds 种植西红柿种子。
They __________ (plant) tomato seeds.
are planting
plant→planting
— ____ he ___________(water) the plants
— Yes, he is.
Is watering
water→watering
— What _____ they _______(do)
—They’re picking grapes.
are doing
do→doing
pick→picking
Work in pairs. Ask and answer.
4
Use the pictures in Activity 3.
What are they doing in Picture 1
They’re planting seeds.
What is he doing in Picture 2
He’s watering the plants.
For example
What are they doing in Picture 3
They’re picking grapes.
Summary
Talk about growing plants
(谈论种植植物)
We are digging.
What are you doing
Homework
听读Part 1的故事，试着跟同学一起表演这个故事。
朗读并记忆本节课的新单词和核心句型。
请用现在进行时谈论身边人正在做的事情，至少写五个句子。

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