初中英语外研版（2024）七年级上册（2024）Unit 6 The power of plants教案配套ppt课件

这是一份初中英语外研版（2024）七年级上册（2024）Unit 6 The power of plants教案配套ppt课件，共27页。PPT课件主要包含了光合作用，二氧化碳，灌木的茎，Exercise，sugar ，sunlight ，leaf ，water ，Skimming，Para1等内容，欢迎下载使用。
Starting ut
Watch the vide and answer the fllwing questins.
What facts abut plants d yu knw?
Plants are imprtant because they give us fd, prvide us the air, create habitats and hme fr animals and insects.All plants need five things t survive: water, light, air, sil and space.…
D yu think plants are amazing? Why r why nt?
Yes, because they create fd and xygen frm sunlight… / N, because they can’t mve…
What are the peple ding?
She is buying vegetables.
He is building a huse.
They are ding an experiment.
They are painting.
What can plants d fr us?
They can prvide fd.
They can prvide building materials.
They can be used fr scientific research.
They can prvide beautiful envirnment.
Vcabulary Teaching
What is the name f the prcess that allws plants t prduce xygen?
Phtsynthesis/ˌfʊtʊˈsɪnθəsɪs/
Sunlight /ˈsʌnlaɪt/
the light frm the sun
Carbn dixide/ˌkɑːbən daɪˈɒksaɪd /
Oxygen /ˈɑːksɪdʒən /
It is a gas that is present in air and water and is necessary fr peple, animals and plants t live.
It is prduced by animals and peple breathing ut, and by chemical reactins.
Sugar/ˈʃʊɡər/
（植物、水果等所含的）糖
Leaf /liːf/
The leaves f a tree r plant are the parts that are flat（光滑的）, thin, and usually green.
Sugars are sweet substances that are fund naturally in plants, fruit, etc.
Stem / stem /
Rt / ruːt /
It is the part f a plant that grws under the grund and absrbs water and minerals (矿物质) that it sends t the rest f the plant.
The stem f a plant is the thin, upright part n which the flwers and leaves grw.
Lk at the picture f a plant and match the wrds t it.
Within a plantIt's quarter past seven. Here's Wrker N. 55 in his green unifrm. He's ging t start wrk in the plant.He wrks in Wrkshp 1001 in the Leaf. There are 20 t 100 wrkers in each wrkshp. They cllect sunlight and CO2, during the day. Nw wrkers frm the Rt send up water. The water will rise up t the Leaf thrugh the Stem. Then wrkers in the Leaf will mix water, CO2, and sunlight. What are they ging t prduce? Mst imprtantly (fr them), there will be sugar! It's useful fr the grwth f the plant Anther prduct will be xygen, but the plant desn't need much f it. It means a lt t animals and humans, thugh - they need it t breathe!The wrkers wrk hard. Sn it's ging t get dark. They will take a rest.There are millins f plants n earth. They give mre than fd and xygen. Withut plants, the natural wrld wuld be very different!
Fr general understanding
1. Chse anther suitable fr this passage.
Hw t make sugarHw plants wrkWhy plants are great Ging t the green wrkshp
Why d yu think s?
2. Hw many parts are there?
3. What’s the main idea f each part ?
Three parts.
Emphasize (强调 ) the imprtance f the plant.Intrduce the prcess f phtsynthesis in plants.Set the theme fr the reader.
It's quarter past seven. Here's Wrker N. 55 in his green unifrm. He's ging t start wrk in the plant.
Careful reading
What might be the rle f "Wrker N. 55" in the plant?
He might represent a specific part f the plant, like a leaf, that is invlved in the prcess f phtsynthesis.
Quarter past seven
Language fcus
当分钟数小于30分钟时，通常使用“past”（过） 例句："It's half past seven."（7点半）当分钟数接近60分钟（即接近下一个小时）时，可以使用“t”（到） 例句： “It’s quarter t seven.”（6点45分）
Cmplete the text with the wrds and expressins frm the passage.
Find the key cmpnents f the phtsynthesis prcess.
He wrks in Wrkshp 1001 in the Leaf. There are 20 t 100 wrkers in each wrkshp. They cllect sunlight and CO2, during the day. Nw wrkers frm the Rt send up water. The water will rise up t the Leaf thrugh the Stem. Then wrkers in the Leaf will mix water, CO2, and sunlight. What are they ging t prduce? Mst imprtantly (fr them), there will be sugar! It's useful fr the grwth f the plant. Anther prduct will be xygen, but the plant desn't need much f it. It means a lt t animals and humans, thugh - they need it t breathe!The wrkers wrk hard. Sn it's ging t get dark. They will take a rest.
Talk abut their functin with yur partner and finish the table belw.
Prvide the necessary energy.
Use t create rganic substances (有机物).
Participate in the reactin and help transprt nutrients.
Cntains chlrplasts （叶绿体）, where phtsynthesis ccurs.
Try t describe the prcess f phtsynthesis.
Step 1 Leaves f plants absrb sunlight.
Step 2 Plants absrb CO2 frm the air.
Step 3 Plants absrb water frm the sil.
Grwth f plant
Fr animals and humans t breathe
20 t 100 wrkers
20 – 100个工人
当我们想要描述一个数量的不确定性或区间时，我们可以使用数字范围 … t… ,表示从一个数值到另一个数值的区间。
E.g. T pass the exam, students need t scre 70 t 100 pints ut f 100.要通过这次考试，学生需要在100分中得到70到100分。This backpack can hld items weighing 15 t 30 kilgrams.这个背包可以装重15到30公斤的物品。
"Rise up" 这个短语动词通常指从低位向高位移动，可以指物理上的上升。
E.g. "The sun rises up in the east."太阳在东方升起。
“Mix" 这个动词通常指将不同的成分、物质或元素结合在一起形成混合物。
E.g. "Mix the flur, sugar, and eggs t make a cake."将面粉、糖和鸡蛋混合在一起做蛋糕。
“Prduce " 这个意味着制造、创造或产生某物。它也可以用来指农产品的种植。
E.g. "The factry prduces cars."这家工厂生产汽车。
mst imprtantly
“Mst imprtantly” 这个短语通常用来强调一系列事物或论点中最为关键或具有最高优先级的事项。
"There are many factrs t cnsider, but mst imprtantly, we need t ensure the safety f all invlved."有许多因素需要考虑，但最重要的是，我们需要确保所有相关人员的安全。
它可以表示某事是必需的或重要的。
“need” 可以作为实义动词使用，后面跟名词或动名词作为宾语。E.g. “I need a car.” 我需要一辆车。作为情态动词时，“need” 的否定和疑问形式构成较为特殊。E.g. “He desn‘t need t g”他不需要去。“need” 也可以用于被动语态，后接 V+ing 形式。E.g. "The garden needs watering"花园需要浇水。
There are millins f plants n earth. They give mre than fd and xygen. Withut plants, the natural wrld wuld be very different!
Why are plants imprtant t the natural wrld？
Hw wuld the natural wrld be different withut plants?
There wuld be less xygen in the air fr us t breathe.A lt f animals wuld nt have fd and might nt survive.There wuld be fewer places fr animals and insects t live, and we might lse many species.…
“millins f”用来强调数量的巨大，而不是确切的数字，后面接可数名词的复数形式。
E.g. "There are millins f stars in the universe.“宇宙中有数百万颗星星。
hundreds f
thusands f
“mre than”用来表示超过某个数量或程度，比某个数值多。
E.g. "It's mre than just a game; it's a way f life.“这不仅仅是一个游戏；它是一种生活方式。
What des “plant” mean in the title?
In the title, "plant" has a duble meaning. It can mean a living thing that grws in nature, like a tree r a flwer, which is the usual meaning. But here, it als playfully refers t the plant as a 'factry' where 'wrkers' d jbs like making fd fr the plant and xygen fr us.
It’ a clever way t make the passage mre interesting.
In what ther ways d plants help the wrld?
Climate Regulatin (气候调节): Thrugh phtsynthesis, they help regulate the climate by absrbing carbn dixide.Habitat Prvisin（提供栖息地）: They ffer habitats fr a wide range f animals and insects.Medicinal Uses: Many plants are surces f medicines and herbal remedies.Aesthetic Value（美学价值）: They add beauty t the envirnment, in bth natural and urban settings.Ecnmic Value（经济价值）: They are used in varius industries, such as agriculture, frestry, and landscaping.…
Think and share
Mini Debate
With the rapid develpment f science and technlgy, human has made breakthrughs（突破） in many fields. In particular, in the fields f bitechnlgy (生物技术) and renewable energy (可再生能源), scientists are explring ways t imitate (模仿) nature's phtsynthesis t slve energy and envirnmental prblems.
Cnsider the fllwing questin: Will it be pssible t replace natural plant phtsynthesis with artificial technlgy (AI) in the future?
Requirements:Participate actively in the discussin and shw yur ideas.Use vcabulary and language structures learned in class t enrich the language f yur argument.Cnsider varius and in-depth perspectives and use arguments t supprt them.
N matter what will happen in the future, nw, we shuld un________ nature, pr ____ nature and re _____ nature!
Must-d: Please g nline t research mre infrmatin abut the relatinship between technlgy and and then share them with us in the next lessn.Optinal: Design an A3 pster that prmtes the imprtance f phtsynthesis, incrprating the lessn's key vcabulary and cncepts.