资源简介

(共43张PPT)
Unit 2 A green life
单元复习
Sounds
Words & phrases
Sentences
01
04
03
02
05
Practice
Tips
Contents
01
Sounds
Let's read
1.字母组合 "ee" 在单词中可发 /i / 音:
keep保持 meet见面 green绿色的
2.字母组合 "ea" 在单词中可发 /i / 音：
seat座位 meat肉 heat加热
3.祈使句的语调通常为降调。
例: Don't throw it away.↘
Use things again.↘
根据发音规则，圈出每组中画线部分发 /i / 音的单词
feet bread bee tea head read
see weather sheep eat sweater street
给下列祈使句标注正确语调
Keep the classroom clean. _________
Reuse your old notebooks. _________
Don't waste water. _________
Recycle paper and bottles. _________
↘
↘
↘
↘
02
Words & phrases
Words-四会
waste 废料，废弃物 plastic塑料制的 throw 扔
useful 有用的，有益的 Yours(用于书信结尾)你真挚的
recycle 再利用，回收利用 each 每个，各 over 大于，高于，超出
metal 金属 into(表示状态的改变)
turn into 变成 newspaper 报纸 flat 平的
beginning 开始，开端，起点off 从(某物)上移开
take off 拿掉;移去 seat 座，座位
Words-三会
plastic塑料 bottle瓶子 can 罐头盒
Earth 地球 save节约 plant种植
environment环境 volunteer志愿者 material 材料
energy能源 rubbish垃圾 reduce减少
reuse再使用 mean意思是
thousand一千 single - use一次性使用的
Phrases
green life绿色生活 three Rs三个 R 原则
food waste食物垃圾 milk box 牛奶盒
recycle bottles回收瓶子 reuse old things重复使用旧物
reduce plastic减少塑料使用 turn off lights关灯
plant trees 种树 Earth Day地球日
turn off关掉 pick up捡起
pick up rubbish捡垃圾 plastic bag塑料袋
old toys 旧玩具
waste
recycle
newspaper
plastic
useful
beginning
绿色生活 __________________ 三个 R 原则 _______________
食物垃圾 __________________ 回收瓶子 __________________
重复使用旧物 ______________ 关灯 ______________________
地球日 ____________________ 捡垃圾 ____________________
节约能源 _________________ 回收利用材料 ______________
汉翻英
green life
recycle materials
three Rs
food waste
recycle bottles
reuse old things
turn off lights
Earth Day
pick up rubbish
save energy
03
Sentences
Sentences
1. 祈使句（建议 / 命令如何过绿色生活）
肯定式：动词原形 + 其他。
例: Reuse old T-shirts.重复使用T恤。
否定式：Don't + 动词原形 + 其他。
例: Don't throw it away.别把它扔掉。
2. 询问环保行动的句型：
—What can we do to...
例: What can we do to reduce plastic 我们能做什么来减少塑料使用？
Sentences
—How do we...
例: How do we recycle milk cartons （我们如何回收牛奶盒？）
3. 介绍地球日的句型：
—Earth Day comes on...
例: Earth Day comes on 22 April every year.（地球日在每年 4 月 22 日。）
4. 表达某物用途的句型：
—They're places to...
例: They're places to keep birds warm.（它们是给鸟保暖的地方。）
句子翻译。
重复使用旧书本。 ______________________________________
别浪费食物。 ______________________________________
回收塑料瓶。 ______________________________________
刷牙时别一直开着水龙头。
__________________________________________________________
减少一次性用品的使用很重要。
__________________________________________________________
Reuse old books.
Don't waste food.
Recycle plastic bottles.
Don't leave the tap running while brushing teeth.
It's important to reduce the use of disposable items.
我们可以重复使用玻璃罐来储存食物。
__________________________________________________________
回收纸张能帮助节约树木。
__________________________________________________________
我们能做什么来让城市更绿色？
__________________________________________________________
我们如何重复使用旧玩具？
__________________________________________________________
It's important to reduce the use of disposable items.
We can reuse glass jars to store food.
Recycling paper can help save trees.
What can we do to make the city greener
04
Tips
知识点一：
祈使句的用法（肯定式和否定式）
—Reuse old paper for art homework. 用旧纸做美术作业。
—Don't use single-use plastics. 不要使用一次性塑料。
解析：
祈使句用于提出建议、命令或要求，主语通常是第二人称（you），但常省略。
肯定式结构：动词原形 + 其他。
例: Plant trees in the park.在公园种树。
知识点一：
祈使句的用法（肯定式和否定式）
否定式结构：Don't + 动词原形 + 其他。
例: Don't keep the water running.别让水一直流。
★★★
[拓展] 祈使句前可加 please 表示礼貌，位置灵活。
例: Please pick up rubbish.请捡垃圾。
/Pick up rubbish, please.捡垃圾，谢谢。
一、单项选择。
( ) 1. _______ plastic bags every day. It's bad for the earth.
A. Use B. Don't use C. Not use
( ) 2. _______ old toys to children in need. It's a good idea.
A. Reuse B. Don't reuse C. To reuse
( ) 3. Please _______ the lights when leaving the classroom.
A. turn on B. turn off C. turn up
B
A
B
二、按要求改写句子。
Throw away the old box.（改为否定句）
_____________ _____________ away the old box.
Use cloth bags for shopping.（改为祈使句，加 please）
_____________ _____________ cloth bags for shopping.
Don’t throw
Please use
知识点二：
三个 R 原则（Recycle/Reuse/Reduce）的含义及用法
—Recycle: Turn old things into new things. 回收：把旧物变成新物。
—Reuse: Use things again. 重复使用：再次使用物品。
—Reduce: Use less. 减少：少用物品。
知识点二：
三个 R 原则（Recycle/Reuse/Reduce）的含义及用法
解析；“三个 R 原则” 是绿色生活的核心：
Recycle（回收）：针对可再利用的材料（如 paper, plastic, metal），
例: Recycle milk cartons.回收牛奶盒。
Reuse（重复使用）：针对仍有使用价值的物品（如 old T-shirts, boxes），
例: Reuse the box as a toy house.把盒子当玩具屋重复使用。
Reduce（减少）：针对资源消耗（如 plastic, energy），
例: Reduce electricity use.减少用电。
知识点二：
三个 R 原则（Recycle/Reuse/Reduce）的含义及用法
[拓展] 三个 R 原则的应用场景：
—Reduce: Bring your own water bottle.自带水杯
—— 减少一次性瓶子使用。
—Reuse: Use old clothes as rags.
用旧衣服当抹布 —— 重复使用。
—Recycle: Put plastic bottles into recycling boxes.
把塑料瓶放进回收箱 —— 回收。
巩固练习
一、根据句意选择合适的 R 原则（Recycle/Reuse/Reduce）填空。
1. _____________: Don't buy too many plastic bags. Use cloth bags instead.
2. _____________: Wash and use the glass bottle again.
3. _____________: Take old newspapers to the recycling center.
二、判断句子属于哪个 R 原则，在括号内写 R, U, D（ Recycle/Reuse/Reduce）。
1. Use both sides of the paper. ___________
2. Turn plastic bottles into flower pots. ___________
3. Ride a bike to school instead of taking a car. ___________
Reduce
Reuse
Recycle
Reduce
Recycle
Reduce
知识点三：
谈论环保行动的特殊疑问句
—What can we do to save energy
我们能做什么来节约能源？
—We can turn off the TV when no one is watching. 没人看时关掉电视。
—How do we recycle plastic bottles 我们如何回收塑料瓶？
—Take off the caps, wash them and put them into recycling boxes.
拧下瓶盖，洗净，放进回收箱。
知识点三：
谈论环保行动的特殊疑问句
解析：
“What can we do to... ” 用于询问 “我们能做什么来达成某环保目标”
答句用 “We can + 动词原形 + 其他.”
例: —What can we do to protect the earth （我们能做什么来保护地球？）
—We can plant more trees.（我们可以多种树。）
“How do we... ” 用于询问 “做某事的步骤 / 方法”，答句用具体步骤描述。
例: —How do we reuse old T-shirts （我们如何重复使用旧 T 恤？）
—Make them into bags.（把它们做成袋子。）
一、单项选择。
( ) 1. —_______ do we reuse old toys
—Give them to younger children.
A. What B. How C. Where
( )2. —What can we do ______our rivers clean
—We can plant trees near them.
A. to keep B. keep C. keeping
B
A
二、根据答句写问句。
1. —__________ __________ __________ __________ to reduce plastic
—Bring your own lunch box to school.
2. —__________ __________ __________ recycle food waste
—Put it in the garden for plants.
What can we do
How do we
知识点四：
考点 04 地球日相关表达
—Earth Day comes on 22 April every year.
（地球日在每年 4 月 22 日。）
—People pick up rubbish and plant trees on Earth Day.
（人们在地球日捡垃圾、种树。）
知识点四：
考点 04 地球日相关表达
解析：
介绍地球日日期：“Earth Day comes on + 日期”
例: Earth Day comes on 22 April.（地球日在 4 月 22 日。）
介绍地球日活动：“People + 动词原形 + 其他.”
例: People join volunteer projects on Earth Day.
（人们在地球日参加志愿活动。）
地球日意义：“It helps people learn about... and calls for...”
、填空。
1. Earth Day comes on ____________ (日期). （提示：4月22日）
2. People ____________ (动词原形) trees on Earth Day. （提示：种植）
二、单项选择。
( ) 1. When does Earth Day come
A. On 12 March B. On 22 April C. On 5 June D. On 10 October
( ) 2. What do people often do on Earth Day
A. Cut down many trees B. Litter in the park
C. Clean up the streets D. Waste a lot of paper
22 April
plant
B
C
( ) 3. What is the meaning of Earth Day
A. It helps people learn about new toys and calls for buying more.
B. It helps people learn about the earth and calls for protecting it.
C. It helps people learn about computer games and calls for playing more.
D. It helps people learn about fast food and calls for eating more.
B
05
Practice
一、单项选择。
( )1.We should ______ plastic bags by bringing our own shopping bags.
A. reduce B. reuse C. recycle
( )2.—______ do we reuse old T-shirts
—We can make them into bags.
A. What B. How C. When
( ) 3.Earth Day ______ on 22 April every year.
A. come B. coming C. comes
( ) 4.Don’t ______ rubbish on the ground. It’s bad for the environment.
A. throw B. throwing C. throws
A
B
C
A
二、情景对话。
（Li Ming and Amy are talking about green life.）
Li Ming: Hi, Amy! What can we do to live a greener life
Amy: Well, we can start with small things. 1. ______
Li Ming: That’s a good idea. What about old books
Amy: 2. ______ We can give them to younger students.
C
A. When is Earth Day this year
B. We can reuse them instead of throwing them away.
C. Let’s bring our own water bottles to school.
D. Can I go with you
E. What else can we do to save water
B
Li Ming: I see. 3. ______
Amy: Don’t leave the tap running when brushing teeth.
Li Ming: Right! 4. ______
Amy: It’s on 22 April. We can join a tree-planting activity then.
Li Ming: Great! 5. ______
Amy: Sure. Let’s plan it together.
E
A. When is Earth Day this year
B. We can reuse them instead of throwing them away.
C. Let’s bring our own water bottles to school.
D. Can I go with you
E. What else can we do to save water
A
D
三、选词填空。
recycle, reduce, reuse, save, throw
Please __________ old boxes as storage boxes.
We should __________ electricity by turning off lights when leaving.
__________ plastic bottles can help make new things.
Don’t __________ away food. Finish what’s on your plate.
To __________ plastic use, try to avoid single-use cups.
reuse
save
Recycling
throw
reduce
四、情境选择。
1.当你看到有人乱扔垃圾时，你可以说：______
A. Don’t pick up rubbish. B. Don’t throw rubbish. C. Let’s throw rubbish.
2.当你想知道如何回收牛奶盒时，你可以问：______
A. How do we recycle milk cartons B. What can we do to recycle
C. When do we recycle milk cartons
3.当你建议同学重复使用旧笔记本时，你可以说：______
A. Let’s buy new notebooks. B. Reuse old notebooks, please.
C. Don’t reuse old notebooks.
B
A
B
五、根据要求完成句子。
Earth Day comes on 22 April.（对画线部分提问）
______ ______ Earth Day come
We can reuse old boxes as bookcases.（用 “What can we do to...” 提问）
______ ______ ______ ______ to reuse old things
People plant trees on Earth Day.（对画线部分提问）
______ ______ people ______ on Earth Day
Don't keep the tap running.（改为肯定祈使句）
______ ______ the tap when not using it.
When does
What can we do
What do do
Turn off
六、阅读短文，选择正确的选项。
Earth Day is a special day for our planet. It started in 1970 and now people in over 190 countries celebrate it. It comes on 22 April every year. On this day, people do many things to protect the Earth. Some plant trees in parks. Some clean up rubbish in streets. Others join volunteer projects to learn about environmental protection. The “three Rs” are important for green life on Earth Day and every day. Reduce means using less, like bringing your own bag when shopping. Reuse means using things again, like reusing old glass jars. Recycle means turning old things into new ones, like recycling paper to make new books. Let’s do our part to make the Earth greener!
( )1.When did Earth Day start
A. In 1907. B. In 1970. C. In 1990.
( )2.How many countries celebrate Earth Day now
A. Over 190. B. Over 90. C. Over 100.
B
A
六、阅读短文，选择正确的选项。
Earth Day is a special day for our planet. It started in 1970 and now people in over 190 countries celebrate it. It comes on 22 April every year. On this day, people do many things to protect the Earth. Some plant trees in parks. Some clean up rubbish in streets. Others join volunteer projects to learn about environmental protection. The “three Rs” are important for green life on Earth Day and every day. Reduce means using less, like bringing your own bag when shopping. Reuse means using things again, like reusing old glass jars. Recycle means turning old things into new ones, like recycling paper to make new books. Let’s do our part to make the Earth greener!
( )3.What do people NOT do on Earth Day
A. Plant trees. B. Throw rubbish. C. Clean up streets.
( )4.What does “reduce” mean
A. Using things again. B. Using less. C. Turning old things into new ones.
B
B
Thank you!

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