初中英语沪教牛津版（2024）七年级下册（2024）Section 4背景图课件ppt

这是一份初中英语沪教牛津版（2024）七年级下册（2024）Section 4背景图课件ppt，共42页。PPT课件主要包含了Content，Notes等内容，欢迎下载使用。
1,了解“地球1小时”是什么，产生及意义，响应保护地球资源的号召。2. 跨学科学习再生能源的知识（物理科学）。3.结合本单元所学的知识，制作安全明智用电的海报。
1.了解“地球1小时”的相关知识。2.能够制作安全明智用电的海报。
热爱与敬畏自然，树立爱护电、养成节约用电的意识。
跨文化了解各国在节约用电方面的行动。懂得节约地球资源是全人类共同的行为准则。培养探究再生能源的意识。
Remember t turn ff lights when yu leave a rm. Encurage yur classmates t turn ff classrm lights during breaks
Electricity is very imprtant in ur daily life, hw can we save energy?
Unplug chargers when yur devices are fully charged
Use energy-efficient appliances.
Keep the cmputer mnitrs turned ff when nt in use.
Enhance（提高） awareness f saving electricity and actively take part in activities related t energy saving. Fr example: Earth Hur
On the last Saturday night f March every year, peple arund the wrld turn their lights ff fr ne hur.
What is Earth Hur?
The Wrld Wildlife Fund (WWF) started Earth Hur in 2007 in Sydney, Australia. Mre than 2.2 millin hmes and businesses jined in.
Peple frm all ver the wrld d the same n the last Saturday f March every year. In Chinese cities many landmark buildings turn ff their lights fr Earth Hur.
There are many ways t save electricity. Once a year, peple take part in "earth hur" and turn ff their lights fr ne hur.Let's learn mre abut this event.
Earth HurWhat is Earth Hur? On the last Saturday night f March every year, peple arund the wrld turn their lights ff fr ne hur. They d this because they care abut climate change. They are trying t shw that small changes can make a great difference t ur planet.
Hw did it start? The Wrld Wildlife Fund (WWF) started Earth Hur in 2007, in Sydney, Australia. Mre than 2.2 millin hmes and businesses jined in. Even the lights at the Sydney Opera Huse were ut fr an hur. This saved a lt f electricity. The same amunt f electricity culd pwer thusands f cmputers r televisin sets fr an hur. When the lights were ut, the stars were clearer in the sky. Peple in China liked this idea t. They started t take part in the event in 2008. Every year, many landmark buildings in Chinese cities turn ff their lights fr Earth Hur. What can yu d? Yu can take part in Earth Hur next March. Find ut the date and time f the event n the Earth Hur website. When the time cmes, turn ff yur lights and enjy yur special hur in the dark. It will be even mre fun if yu ask yur friends, family and classmates t jin as well.
1.care abut2.make a great difference t3.Mre than4.jin in5.be ut 6.take part in the event7.in the dark8. turn ff
在文章中画出短语，并翻译
关心,担忧对……产生极大影响超过加入,参加熄灭参加活动在黑暗中关闭
Earth Hur shws ur cmmitment t saving energy and prtecting ur planet. The slgan fr Earth Hur 2023 was "Give an Hur fr Earth：
“地球一小时”表明了我们对节约能源和保护地球的承诺。2023年 “地球一小时”的口号是“为地球献出一小时”.
On the last Saturday night f March every year,
Because they care abut climate change. They are trying t shw that small changes can make a great difference t ur planet.
The Wrld Wildlife Fund (WWF)
many landmark buildings in Chinese cities turn ff their lights
n the Earth Hur website
turn ff yur lights
supprtive.
Read the article and answer the fllwing questins.
1. When d peple take part in Earth Hur?
3. What were the benefits f the first Earth Hur?
Peple take part in Earth Hur n the last Saturday night f March every year.
They d this t shw they care abut climate change. They are trying t shw that small changes can make a great difference t ur planet.
2. Why d they d it?
It saved a lt f electricity. The same amunt f electricity culd pwer thusands f cmputers r televisin sets fr an hur.
3 Cmplete the sentences with the wrds and phrases belw. Change the frm if necessary.
take part in
climate change
Language pints
1.Mre than 2.2 millin hmes and businesses jined in. 超过220万家庭和企业加入了这一行列。【详解】jin in 动词加介词短语，意为“参加；加入”。通常指参加或加入某个活动、讨论、游戏等。
2.It will be even mre fun if yu ask yur friends, family and classmates t jin as well.如果你邀请你的朋友、家人和同学加入，那会更有趣。【详解】as well 意为“也”,常用于肯定句句末。【拓展】辨析t, als, as well, either
① as well是副词短语，常位于句末，用于肯定句。 他也会说法语。He can speak French as well.② als是副词，较正式，常位于be 动词、助动词或情态动词之后，行为动词之前，用于肯定句。 她也想去游泳。She als wants t g swimming.③ t是副词，多用于口语，常位于句末，用于肯定句。 我也是一个初中生。 I’m a junir high schl student t. ④ either是副词，位于句末，用于否定句。 他也不喜欢吃鱼。 He desn’t like eating fish either.
3.rulerule 规则。名词。This is the first rule f winning in any part f life. 这就是在生命任何阶段想要成功的第一规则。Everyne must bey the rules. 人人都必须遵守规则。Smene has seen yu break the rule. 有人看见你违规了。bey the rule(s)break the rule(s)be against the rule
4.pwer动词：意为 “驱动；推动,给…动力”。The engine pwers the car. 发动机驱动汽车。名词： pwer n. 能；能量。如： water pwer 水力 slar pwer太阳能pwer n.力量、能力或权力She has the ‌pwer‌ t influence peple.她有影响他人的能力。He has ‌pwer ver‌ his emplyees.他对员工有控制权。
【同根词】 (1)pwerful adj. 强大的 He is a pwerful man. 他是个强人。 (2)pwerless adj. 无力量的 I am pwerless t stp pllutin n my wn. 我无力独自阻止污染。【辨析】pwer 与 energy pwer指力量、功率、电力或权利；energy指精力、能量。 May the Sun bring yu new energy. 愿太阳带给你新的能量。
Peple arund the wrld mstly burn il, gas r cal t prduce energy. This causes tw huge prblems—pllutin and glbal warming. Cuntries arund the wrld have develped different kinds f renewable energy. Let’s see what they are.
1 Read the text abut hw different cuntries use renewable energy, and then match the paragraphs (A-E) with the pictures (1 -5).
Renewable energy
A The Three Grges Dam is the biggest dam in the wrld. It tk mre than 10 years t build. China is the cuntry that makes the mst electricity frm hydrpwer.
B Sme f the wrld's biggest wind turbines (涡轮机)are ff the cast f Britain. Their blades (叶片) are bigger than the Lndn Eye! One turn pwers a huse fr arund 29 hurs!
C One f the biggest slar farms in Australia is n a sheep farm. Thusands f slar panels make abut 200 millin hurs f electricity a year. They als prtect the sheep frm sun and rain!
D Iceland has a lt f vlcanes which prduce ht water and air. S abut 30% f the cuntry's electricity cmes frm gethermal(地热的) energy. It's very cheap!
E The USA grws the mst bifuels(生物燃料) , usually crn. Mst cars there can use 10% vegetable fuel mixed with il. Many cars can just use bifuel.
2 Discuss the questins belw.What kinds f renewable energy are used in yur area? What are the advantages f them?
Water pwer statins make use f the energy f flwing water t generate electricity. One big advantage f water pwer is that it’s a clean surce f energy. It desn't prduce harmful gases like cal - fired pwer plants, s it desn't pllute the air. What’s mre, it’s reliable. As lng as there’s a steady water flw, we can cunt n a cntinuus supply f electricity.
Slar energy is als ppular. Slar panels are ften seen n the rftps f many huses. It’s extremely envirnmentally - friendly, as it desn't create any pllutin during peratin. Anther benefit is that it’s free nce the slar panels are installed. It helps peple save a lt n their electricity bills. Als, slar energy can be used in remte areas where it’s difficult t build pwer grids, bringing electricity t thse places.
Step 1 Discuss the questins in grups and gather ideas.• When and where d we need t use electricity?• Can we find new ways f prducing electricity?• Hw can we use electricity wisely?Step 2 Wrk in grups. Discuss and decide n what t include in yur pster abut using electricity wisely. Here is an example.
Making a pster abut hw t use electricity wisely
Hw can we save electricity and make the Earth a better place? Wrk in grups and make a pster abut wise ideas f using electricity.
Step 3 Display all yur psters n the classrm wall and vte fr the best. Yu can refer t the fllwing criteria.• creative and practical ideas• crrect and clear language• lgical presentatin f ideas
智慧角并没有能源危机，只有无知的危机。—理查德•巴克敏斯特•富勒（美国建筑师）
一、根据汉语首字母提示完成单词。
1.Fr ur s______, we shuld always fasten seatbelts when the ___________(说明书） carefully befre yu start the peple use scial media t c_________ with friends and rule4.We must fllw the traffic r_____ t avid plar bears are in danger because f the changing shuld reduce the a_________ f junk fd yu eat fr better panels can p_______ the street lights, saving a lt f can find a lt f useful infrmatin n this educatinal ________(网址) yu visit Beijing, the Frbidden City is a must-see__________(地标） shuld save e________ by turning ff lights when leaving a sky became c________ after the rain stpped, and we saw a beautiful schl sprts e_________ is held every spring.
instructins
二、用单词的适当形式填空。
1.The teacher gave clear_______( instructin) n hw t write the cmpsitin.2. Can yu tell the _______(different) between the tw pictures?3. By cmparing the tw plans, I gt a ___(clear) understanding f their advantages.4. After a gd night’s sleep, I feel _____(energy) and ready t start a new day.5. The cheetah is a ______(pwer) animal. It can run at extremely high speeds. 6. She always turns ff the lights t save energy befre ______(leave) the rm. 7. Students are trying ______(they) best t study fr the English exam. 8. Peple are _____ a small _____ near the schl. It will be a bkstre.(build)9. Cmputers here are _______(cnnect) t a printer. The cnnectin allws us t print hmewrk fast.10. The farm _________fresh milk. The _______sells it t lcal stres every mrning. (prduce)
instructins
difference
building building
prduces prducer
三、完成句子1. 我既喜欢读书也喜欢运动。 I enjy reading bks and playing sprts _____ _______. 2. 她通过节约用水来关心环境。 She ______ _________the envirnment by saving water. 3. 气候变化影响我们的星球，所以我们应该现在采取行动。 _____ _______ affects ur planet, s we shuld _____ _______nw. 4. 上周，我和朋友们一起参加了社区清洁活动。 I ____ ______ _____a cmmunity clean-up event with my friends last week. 5.学生们经常在养老院进行志愿活动，这对他们的生活产生了影响。 Students ften vlunteer at ld peple’s hmes and this ____ ____ _____ ______ their life.
makes a difference t
cares abut
Climate change take actin
tk part in
Mr Liu’s family is just like urs. But this family has dne smething different. Abut seven years ag, they mved t the cuntryside and built a huse. They used the wind and the sun t 1.p______ the huse. Mr Liu wanted his family t d smething fr prtecting the Earth, s he set sme 2.r_____ fr his family. Then, he began t make electricity t pwer everything in their daily life. The kids 3.w_______ abut their life at first. “Will we still be able t watch TV? What abut the cmputer?” they asked. “Dn’t wrry,” said their father. “We’ll make electricity by urselves. It desn’t mean we have t live in the past.”
“We are ging t set up a wind generatr,” said Mrs Liu. “It is a great way t 4.p_________ electricity. It’s nt nly free but als clean. The wind desn’t blw all the time, thugh. S we need t stre ur pwer. Then, when there is n wind, we will still have pwer t make everything wrk in ur huse.” Mr Liu added, “We are als ging t cllect energy frm the Sun and turn it int 5.e_______. S, when the wind blws, we have pwer. When the Sun 6.s______ , we have pwer, t.” Nw, they are living 7.h__________ in their self-pwered hme.