小学Unit 2 A green life评优课作业ppt课件

这是一份小学Unit 2 A green life评优课作业ppt课件，共3页。PPT课件主要包含了Lets read，Words-四会，Words-三会，Phrases，waste，recycle，newspaper ，plastic，useful ，beginning 等内容，欢迎下载使用。
1.字母组合 "ee" 在单词中可发 /iː/ 音: keep保持 meet见面 green绿色的2.字母组合 "ea" 在单词中可发 /iː/ 音：seat座位 meat肉 heat加热3.祈使句的语调通常为降调。例: Dn't thrw it away.↘ Use things again.↘
根据发音规则，圈出每组中画线部分发 /iː/ 音的单词feet bread bee tea head readsee weather sheep eat sweater street 给下列祈使句标注正确语调Keep the classrm clean. _________ Reuse yur ld ntebks. _________ Dn't waste water. _________ Recycle paper and bttles. _________
Wrds & phrases
waste 废料，废弃物 plastic塑料制的 thrw 扔useful 有用的，有益的 Yurs(用于书信结尾)你真挚的recycle 再利用，回收利用 each 每个，各 ver 大于，高于，超出metal 金属 int(表示状态的改变)turn int 变成 newspaper 报纸 flat 平的beginning 开始，开端，起点ff 从(某物)上移开take ff 拿掉;移去 seat 座，座位
plastic塑料 bttle瓶子 can 罐头盒Earth 地球 save节约 plant种植 envirnment环境 vlunteer志愿者 material 材料energy能源 rubbish垃圾 reduce减少 reuse再使用 mean意思是 thusand一千 single - use一次性使用的
green life绿色生活 three Rs三个 R 原则 fd waste食物垃圾 milk bx 牛奶盒 recycle bttles回收瓶子 reuse ld things重复使用旧物reduce plastic减少塑料使用turn ff lights关灯 plant trees 种树 Earth Day地球日turn ff关掉 pick up捡起pick up rubbish捡垃圾plastic bag塑料袋ld tys 旧玩具
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 ______________
recycle materials
recycle bttles
reuse ld things
turn ff lights
pick up rubbish
save energy
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 ld T-shirts.重复使用T恤。否定式：Dn't + 动词原形 + 其他。例: Dn't thrw it away.别把它扔掉。2. 询问环保行动的句型：—What can we d 例: What can we d t reduce plastic?我们能做什么来减少塑料使用？
—Hw d 例: Hw d we recycle milk cartns?（我们如何回收牛奶盒？）3. 介绍地球日的句型：—Earth Day cmes n... 例: Earth Day cmes n 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 t... 例: They're places t 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 ld bks.
Dn't waste fd.
Recycle plastic bttles.
Dn't leave the tap running while brushing teeth.
It's imprtant t reduce the use f dispsable 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？__________________________________________________________
We can reuse glass jars t stre fd.
Recycling paper can help save trees.
What can we d t make the city greener?
祈使句的用法（肯定式和否定式）
—Reuse ld paper fr art hmewrk. 用旧纸做美术作业。—Dn'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（yu），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。
否定式结构：Dn't + 动词原形 + 其他。例: Dn'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 fr the earth. A. Use B. Dn't use C. Nt use ( ) 2. _______ ld tys t children in need. It's a gd idea. A. Reuse B. Dn't reuse C. T reuse ( ) 3. Please _______ the lights when leaving the classrm. A. turn n B. turn ff C. turn up
二、按要求改写句子。Thrw away the ld bx.（改为否定句） _____________ _____________ away the ld bx.Use clth bags fr shpping.（改为祈使句，加 please） _____________ _____________ clth bags fr shpping.
三个 R 原则（Recycle/Reuse/Reduce）的含义及用法
—Recycle: Turn ld things int 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。
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 cartns.回收牛奶盒。 Reuse（重复使用）：针对仍有使用价值的物品（如 ld T-shirts, bxes），例: Reuse the bx as a ty huse.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。
[拓展] 三个 R 原则的应用场景：—Reduce: Bring yur wn water bttle.自带水杯 —— 减少一次性瓶子使用。—Reuse: Use ld clthes as rags.用旧衣服当抹布 —— 重复使用。—Recycle: Put plastic bttles int recycling bxes.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. _____________: Dn't buy t many plastic bags. Use clth bags instead.2. _____________: Wash and use the glass bttle again.3. _____________: Take ld newspapers t 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 bth sides f the paper. ___________2. Turn plastic bttles int flwer pts. ___________3. Ride a bike t schl instead f taking a car. ___________
谈论环保行动的特殊疑问句
—What can we d t save energy? 我们能做什么来节约能源？ —We can turn ff the TV when n ne is watching. 没人看时关掉电视。 —Hw d we recycle plastic bttles? 我们如何回收塑料瓶？ —Take ff the caps, wash them and put them int recycling bxes. 拧下瓶盖，洗净，放进回收箱。
解析：“What can we d ” 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 d t prtect the earth?（我们能做什么来保护地球？） —We can plant mre trees.（我们可以多种树。）“Hw d ” 用于询问 “做某事的步骤 / 方法”，答句用具体步骤描述。 例: —Hw d we reuse ld T-shirts?（我们如何重复使用旧 T 恤？） —Make them int bags.（把它们做成袋子。）
一、单项选择。 ( ) 1. —_______ d we reuse ld tys? —Give them t yunger children. A. What B. Hw C. Where ( )2. —What can we d ______ur rivers clean? —We can plant trees near them. A. t keep B. keep C. keeping
二、根据答句写问句。1. —__________ __________ __________ __________ t reduce plastic? —Bring yur wn lunch bx t schl.2. —__________ __________ __________ recycle fd waste? —Put it in the garden fr plants.
What can we d
Hw d we
考点 04 地球日相关表达
—Earth Day cmes n 22 April every year.（地球日在每年 4 月 22 日。） —Peple pick up rubbish and plant trees n Earth Day.（人们在地球日捡垃圾、种树。）
解析：介绍地球日日期：“Earth Day cmes n + 日期” 例: Earth Day cmes n 22 April.（地球日在 4 月 22 日。）介绍地球日活动：“Peple + 动词原形 + 其他.” 例: Peple jin vlunteer prjects n Earth Day.（人们在地球日参加志愿活动。）地球日意义：“It helps peple learn abut... and calls fr...”
、填空。1. Earth Day cmes n ____________ (日期). （提示：4月22日）2. Peple ____________ (动词原形) trees n Earth Day. （提示：种植）二、单项选择。( ) 1. When des Earth Day cme?A. On 12 March B. On 22 April C. On 5 June D. On 10 Octber( ) 2. What d peple ften d n Earth Day?A. Cut dwn many trees B. Litter in the parkC. Clean up the streets D. Waste a lt f paper
( ) 3. What is the meaning f Earth Day?A. It helps peple learn abut new tys and calls fr buying mre.B. It helps peple learn abut the earth and calls fr prtecting it.C. It helps peple learn abut cmputer games and calls fr playing mre.D. It helps peple learn abut fast fd and calls fr eating mre.
一、单项选择。 ( )1.We shuld ______ plastic bags by bringing ur wn shpping bags. A. reduce B. reuse C. recycle( )2.—______ d we reuse ld T-shirts? —We can make them int bags. A. What B. Hw C. When( ) 3.Earth Day ______ n 22 April every year. A. cme B. cming C. cmes( ) 4.Dn’t ______ rubbish n the grund. It’s bad fr the envirnment. A. thrw B. thrwing C. thrws
二、情景对话。 （Li Ming and Amy are talking abut green life.） Li Ming: Hi, Amy! What can we d t live a greener life? Amy: Well, we can start with small things. 1. ______ Li Ming: That’s a gd idea. What abut ld bks? Amy: 2. ______ We can give them t yunger students.
A. When is Earth Day this year? B. We can reuse them instead f thrwing them away. C. Let’s bring ur wn water bttles t schl. D. Can I g with yu? E. What else can we d t save water?
Li Ming: I see. 3. ______ Amy: Dn’t leave the tap running when brushing teeth. Li Ming: Right! 4. ______ Amy: It’s n 22 April. We can jin a tree-planting activity then. Li Ming: Great! 5. ______ Amy: Sure. Let’s plan it tgether.
三、选词填空。 recycle, reduce, reuse, save, thrw Please __________ ld bxes as strage bxes.We shuld __________ electricity by turning ff lights when leaving.__________ plastic bttles can help make new things.Dn’t __________ away fd. Finish what’s n yur plate.T __________ plastic use, try t avid single-use cups.
四、情境选择。 1.当你看到有人乱扔垃圾时，你可以说：______ A. Dn’t pick up rubbish. B. Dn’t thrw rubbish. C. Let’s thrw rubbish.2.当你想知道如何回收牛奶盒时，你可以问：______ A. Hw d we recycle milk cartns? B. What can we d t recycle? C. When d we recycle milk cartns?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 ntebks. B. Reuse ld ntebks, please. C. Dn’t reuse ld ntebks.
五、根据要求完成句子。 Earth Day cmes n 22 April.（对画线部分提问） ______ ______ Earth Day cme?We can reuse ld bxes as bkcases.（用 “What can we d t...” 提问） ______ ______ ______ ______ t reuse ld things?Peple plant trees n Earth Day.（对画线部分提问） ______ ______ peple ______ n Earth Day?Dn't keep the tap running.（改为肯定祈使句） ______ ______ the tap when nt using it.
What can we d
What d d
Turn ff
六、阅读短文，选择正确的选项。 Earth Day is a special day fr ur planet. It started in 1970 and nw peple in ver 190 cuntries celebrate it. It cmes n 22 April every year. On this day, peple d many things t prtect the Earth. Sme plant trees in parks. Sme clean up rubbish in streets. Others jin vlunteer prjects t learn abut envirnmental prtectin. The “three Rs” are imprtant fr green life n Earth Day and every day. Reduce means using less, like bringing yur wn bag when shpping. Reuse means using things again, like reusing ld glass jars. Recycle means turning ld things int new nes, like recycling paper t make new bks. Let’s d ur part t make the Earth greener!( )1.When did Earth Day start? A. In 1907. B. In 1970. C. In 1990.( )2.Hw many cuntries celebrate Earth Day nw? A. Over 190. B. Over 90. C. Over 100.
六、阅读短文，选择正确的选项。Earth Day is a special day fr ur planet. It started in 1970 and nw peple in ver 190 cuntries celebrate it. It cmes n 22 April every year. On this day, peple d many things t prtect the Earth. Sme plant trees in parks. Sme clean up rubbish in streets. Others jin vlunteer prjects t learn abut envirnmental prtectin. The “three Rs” are imprtant fr green life n Earth Day and every day. Reduce means using less, like bringing yur wn bag when shpping. Reuse means using things again, like reusing ld glass jars. Recycle means turning ld things int new nes, like recycling paper t make new bks. Let’s d ur part t make the Earth greener!( )3.What d peple NOT d n Earth Day? A. Plant trees. B. Thrw rubbish. C. Clean up streets.( )4.What des “reduce” mean? A. Using things again. B. Using less. C. Turning ld things int new nes.