内容正文:
Unit 2 A green life
Lesson 2 Speed up & Fuel up
外研版三年级起点五年级上册(2024)
Learning objectives
掌握回收相关核心词汇,能听懂关于塑料回收、环保影响的听力材料,读懂回收说明(如牛奶盒、塑料瓶回收步骤)和 chant。
学习理解
能运用核心词汇和句型 描述回收步骤(如 “Recycle milk boxes in 3 steps:...”)。能通过对话、填空等形式 交流减少塑料浪费的方法。
应用实践
设计 个性化回收计划(如班级塑料瓶回收活动),用英语撰写步骤和标语。
联系生活提出 跨学科环保建议,反思塑料对环境的长期影响。
迁移创新
【核心词汇】
mean, over, thousand, metal, turn into, as, newspaper, flat, beginning, start, seat, land
【核心句型】
Don’t use plastic every day!
Use things again — don’t throw them away.
影响表达:
Plastic makes life easy for you and me.But it's bad for the land and sea.
核心知识点
Contents
Presentation
Homework
Lead in
Summary
Practice
Lead in
boxes
old shirt
cans
old dress
Lead in
Think and answer.
1
What can we do with boxes?
Presentation
例句:What does “recycle” mean?
“recycle” 是什么意思?
meet /miːt/(相遇)
meat /miːt/(肉)
音近词
例 句
拆分记忆
Look and learn.
Presentation
音标:/miːn/
词性:v.
中文:意思是;表示…… 的意思
m
ea
n
mean
+
+
We should reduce food waste to live a green life.
(我们应该减少食物废料,践行绿色生活 。 )
more than(超过)
above(在…… 上方)
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/ˈəʊvə(r)/
词性:prep. /adv.
中文:大于,高于,超过
o
v
er
over
+
+
This factory can recycle thousands of milk cartons every day.这家工厂每天能回收数千个牛奶盒。
a thousand(一千)
短语
例 句
拆分记忆
Look and learn.
Presentation
音标:/ˈθaʊznd/
词性:num.
中文:一千
th
ou
s
and
thousand
+
+
+
Metal cans can be recycled and made into new boxes.金属罐可以被回收,制成新的盒子。
medal /ˈmedl/(奖牌)
音近词
例 句
拆分记忆
Look and learn.
Presentation
音标:/ˈmetl/
词性:n.
中文:金属
me
t
al
metal
+
+
We can turn old clothes into reusable bags.
我们可以把旧衣服变成可重复使用的袋子。
change into(变成)
convert into(转化为)
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/tɜːn ˈɪntuː/
词性:v. 短语
中文:变成
turn
into
turn into
+
The seat of the old chair can be made into a small storage box.
旧椅子的座部可以改造成小储物盒。
see /siː/(看见)
音近词
例 句
拆分记忆
Look and learn.
Presentation
音标:/siːt/
词性:n.
中文:(椅子等的)座部
s
ea
t
seat
+
+
Let’s start collecting plastic bottles after class.
课后我们开始收集塑料瓶吧。
begin(开始,v.)
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/stɑːt/
词性:v. /n.
中文:开始
st
ar
t
start
+
+
The beginning of recycling is to sort waste correctly.回收的开端是正确分类垃圾。
start(开始,n.)
opening(开端)
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/bɪˈɡɪnɪŋ/
词性:n.
中文:开始,开端
be
gin
ning
beginning
+
+
Flatten the carton before recycling—it saves space.回收前把盒子压平 —— 这样节省空间。
apartment 公寓
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/flæt/
词性:adj. /n.
中文:平的;公寓
f
la
t
flat
+
+
Old newspapers can be recycled to make new paper.旧报纸可以被回收用来制作新纸。
news新闻
paper(报纸,泛指)
拓展词
例 句
拆分记忆
Look and learn.
Presentation
音标:/ˈnjuːzpeɪpə(r)/
词性:n.
中文:报纸
news
paper
newspaper
+
We can use a bottle as a flower pot for recycling.
我们可以把瓶子当作花盆来进行回收利用。
like(像)、when(当…… 时)
同义词
例 句
音近词
Look and learn.
Presentation
音标:/æz/
词性:prep. /conj.
中文:作为;当…… 时
as fat
cat dad
Plastic waste is bad for both land and sea.
塑料垃圾对陆地和海洋都有害。
ground(地面)
arrive(着陆,v.)
同义词
例 句
拆分记忆
Look and learn.
Presentation
音标:/lænd/
词性:n. /v.
中文:陆地;着陆
l
an
d
land
+
+
mean
over
thousand
metal
turn into
seat
Quick response
Presentation
Look and guess.
What do you see in the pictures?
I see milk boxes.
What do you think this lesson is about?
I think this lesson is about___________.
recycling
20
Presentation
Read and answer.
Dear all,
Each of us has a box of milk every day at school. We use over 150,000 milk boxes every year! But many of us just throw them away.
Milk boxes have three parts: paper, plastic and metal. Each part can turn into something new, like newspapers, bottles and cans.
It is easy to recycle a milk box in just three steps:
Open the milk box and wash it with water.
2. Make it flat.
3. Put it into a recycling box.
Now the milk box moves to a new beginning! Let's start now for a green world!
Students from Class 502
What is the letter about?
It’s about ______________________.
recycling milk boxes
Who wrote this letter?
_______wrote this letter.
Students from Class 502
Students from Class 504
21
Dear all,
Each of us has a box of milk every day at school. We use over 150,000 milk boxes every year! But many of us just throw them away.
Milk boxes have three parts: paper, plastic and metal. Each part can turn into something new, like newspapers, bottles and cans.
It is easy to recycle a milk box in just three steps:
Open the milk box and wash it with water.
2. Make it flat.
3. Put it into a recycling box.
Now the milk box moves to a new beginning! Let's start now for a green world!
Students from Class 502
Presentation
Read and answer.
What can milk boxes turn into?
______________ can turn into things like __________________ ______________.
How many boxes of milk do the students use every year?
They use ______________ milk boxes every year.
over 150,000
Milk boxes
newspapers, bottles
and cans
22
Presentation
Listen and repeat.
一分钟倒计时
50
60
50
40
60
30
20
10
Loudly 大声
Emotionally 有感情
Good pronunciation and intonation. 语音语调
评价机制
Dear all,
Each of us has a box of milk every day at school. We use over 150,000 milk boxes every year! But many of us just throw them away.
Milk boxes have three parts: paper, plastic and metal. Each part can turn into something new, like newspapers, bottles and cans.
It is easy to recycle a milk box in just three steps:
Open the milk box and wash it with water.
2. Make it flat.
3. Put it into a recycling box.
Now the milk box moves to a new beginning! Let's start now for a green world!
Students from Class 502
23
Hello kids,
Do you know we can help make our earth cleaner? One great way is recycling plastic bottles. It's easy and fun! Here's how to do it:
1 _______________________________. (take off, caps)
2 _______________________________. (wash)
3 _____________________________. (recycling box)
Take off the caps.
Wash the plastic bottles with water.
Wash the plastic bottles with water.
Presentation
Read and write.
And there it is! With these steps, we're helping the earth. Let's start recycling today!
Presentation
Look and say.
Bags and bottles, desks and seats.
Plastic makes life easy for you and me.
But it’s bad for the land and sea.
To keep the world green,
Don’t use plastic every day!
Use things again – don’t throw them away.
What can you see in the picture?
I can see __________________________.
What does the fish say?
fish and some plastic things
The fish says it’s _______ for the land and sea.
bad
good
25
Presentation
Read and answer.
Bags and bottles, desks and seats.
Plastic makes life easy for you and me.
But it’s bad for the land and sea.
To keep the world green,
Don’t use plastic every day!
Use things again – don’t throw them away.
Why should we cut down plastic use?
Because it’s _________ for _______________. We want to ___________________.
How do we cut down plastic use?
___________ again and
_________________________.
bad
the land and sea
keep the world green
Use things
don’t throw them away
26
Presentation
Listen and chant.
一分钟倒计时
50
60
50
40
60
30
20
10
Loudly 大声
Emotionally 有感情
Good pronunciation and intonation. 语音语调
评价机制
Bags and bottles, desks and seats.
Plastic makes life easy for you and me.
But it’s bad for the land and sea.
To keep the world green,
Don’t use plastic every day!
Use things again – don’t throw them away.
27
Q: Which words have the same sound?
easy, sea
green
Presentation
Read the chant and write.
Read and write.
Bags and bottles, desks and seats.
Plastic makes life easy for you and me.
But it’s bad for the land and sea.
To keep the world green,
Don’t use plastic every day!
Use things again – don’t throw them away.
28
easy, sea
Presentation
Read and learn.
嘴唇自然向两侧拉开,呈扁平状;
舌头前伸,舌尖轻轻抵住下齿背,舌面向上抬起,靠近上颚;
发音时保持口型不变,气流平稳送出,声音持续稍长。
green
29
What places can you see?
a supermarket
a restaurant
a park
Presentation
Look and say.
30
Where are they?
Presentation
Listen and tick.
31
1 We should bring our ____________ to the shop.
Don’t ____________ plastic.
2 Plastic makes our life ____________, but it is _________________.
3 We can also bring our own ________________.
4 We should all ________________ the earth.
own bag
use too much
easy
bad for the earth
water bottles
take care of
Presentation
Listen and write.
32
How do you cut down plastic use at school?
Presentation
Look and answer.
We should bring our own water bottles. Don’t use single-use plastics.
Yes. And we should bring our own lunch boxes.
33
Practice
Presentation
1. 基本结构
肯定句:直接以 “动词原形” 开头(省略主语 you,默认对方为动作执行者)。
否定句:在动词原形前加 “Don’t”(Don’t + 动词原形)。
2. 核心用法
用于发出指令、建议、警告或请求,语气简洁直接,常见于 “步骤说明、规则提醒” 等场景(如回收操作、环保提示)。
例句
肯定句:Flatten the paper.(把纸压平 —— 指令:回收操作)
否定句:Don’t use single-use plastics.(别用一次性塑料 )
“祈使句”
Presentation
1. 基本结构
It + be 动词(is/was)+ 形容词(easy/important...)+ to do sth.
“It” 是形式主语(代替后面的不定式),“to do sth.” 是真正主语(表达实际动作)。
2. 用法
用于表达 “做某事的属性 / 特点”(如难易、重要性等),用 “it” 作形式主语可避免句子 “头重脚轻”,让表达更自然。
例句:It is easy to recycle plastic bottles.(回收塑料瓶很简单 。)
“不定式用法”
Presentation
“情态动词 can 的应用”
1. 基本结构
肯定句:主语 + can + 动词原形(can 后接动词原形,无人称 / 数的变化)。
否定句:主语 + can’t(can not)+ 动词原形。
2. 用法
表示 “能力” ;更常见于 “提出建议、表达可能性” 。
例句:We can wash the carton before recycling.
(我们可以在回收前洗一下盒子 )
Practice
一、汉译英。
表示…… 的意思 __________ 超过 __________
一千 __________ 金属 __________
变成 __________ 作为 __________
报纸 __________ 平的 __________
开始,开端,起点 __________ 开始 __________
(椅子等的)座部 __________ 陆地 __________
一次性使用的 __________
mean over
thousand metal
turn into as
newspaper flat
beginning start
seat land
single - use
Practice
二 、句子翻译。
回收一个牛奶盒很简单,只需三步。
___________________________________________________________
打开牛奶盒,用水清洗它。
___________________________________________________________
塑料让你我的生活更便捷,但对陆地和海洋有害。
___________________________________________________________
我们应该带我们自己的饭盒去学校。
___________________________________________________________
重复利用物品,不要乱扔!
___________________________________________________________
It is easy to recycle a milk box in just three steps.
Open the milk box and wash it with water.
Plastic makes life easy for you and me.But it's bad for the land and sea.
We should bring our own lunch boxes.
Use things again — don’t throw them away.
三、用适当形式填空。
It is important ___________ (protect) our planet.
___________ (wash) the plastic bottle before recycling.
We can ___________ (reduce) waste by reusing bags.
Follow these ___________ (step) to recycle paper.
Don't use single - use plastics. They ___________ (be) bad for nature.
Practice
to protect
Wash
reduce
steps
are
Summary
Let’s Summary!
Key words:
Key sentences:
环保建议:
Don’t use plastic every day!
Use things again — don’t throw them away.
影响表达:
Plastic makes life easy for you and me.But it's bad for the land and sea.
Homework
Homework
基础:抄写本节课所学关键词,每个短语抄写 3 遍 。
提高:用核心句型写 《回收易拉罐》 步骤说明(至少 3 步,图文结合)。
拓展:设计 班级环保回收海报(英语标注回收步骤 + 标语,如 Recycle for a Green World!)。
Thank you!
外研版三年级起点五年级上册(2024)
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$$Beginning. beginning.
land.
Over . over.
as.
Mean. mean.
Start . start.
newspaper.
Thousand . thousand.
Turn into turn into.
Metal, metal.
Seat . seat.
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Flat. flat.