Unit 6 Live green — Understanding ideas (Grammar) 课件 2026-2027学年外研版英语九年级上册

Unit In this lesson,we'll be 1.give views on plastic passage; 2,use word formation new words; 3.choose to use plastic Live green Understanding ideas Grammar able to; after reading the rules to build and guess wisely in daily life. Revision Plastic:good or bad? What was plastic like when Why did people call it invented? "environmental hero"? Light,easy to shape, It quickly replaced wood and other long-lasting and cheap. natural materials. How much plastic do we eat a week? What problems does plastic cause? It kills more than 100,000 sea animals About five grams-a whole bank every year. card！ What must we do with plastic? Think clearly and use it wisely. Revision Plastic:good or bad? once a "hero"- hard to break down now a sea danger no place is free past now Use it wisely-no Planet B! Free talk Plastic was quickly replaced...but it is not harmless.Look at word formation! It quickly replaced wood and other natural materials. Plastic makes life easier for many people,yet it brings long-lasting troubles to our planet. 构词法：加前后缀构成新词，如quick→quickly,harm→harmful。 Find and read Find more examples of each type in Plastic:good or bad?. (a)It quickly replaced wood and other natural materials.(b)Even humans are eating plastic waste 后缀y构成副词，ful/-less表"有/无"。 前缀/合成：invent→invention, every+day→everyday。 Summarize 构词 规则 形→副 -y副词 名词→形 -ful形容词 名词一→形（无） -less形容词 两词合一 合成词 构词法：前后 例句 缀与合成 It quickly replaced wood. quickly,easily Plastic waste is harmful. harmful,useful This is not harmless. careless,endless an everyday need everyday≠every day Practise 构词法规测运 用 Complete the rules of word formation. 1 the factory's pollute (n.)/cause harm The factory's pollution barms the environment.(pollute) 2 the water/be polluted/be (safe)to drink The water is polluted.It is unsafe to drink.(safe) 3 electronic waste/be (harm) Electronic waste is also harm ful to the environment.(harm) 4 burning oil cause (green house)gases Burning oil causes greenhouse gases.(green,house) 5 tiny pieces of plastic /be in the air we breathe Plastic pieces are found in the air we breathe.(breathe) earn and read 常见构词法一 览 动词/名词 加后缀 含义 pollute pollution polluted 污染 use useful useless 有用的/无用的 harm harmful /harmless 有害的/无害的 invent invention /inventor 发明 easy easily 容易地 day everyday daily 日常的 care careful careless 细心的/粗心的 long long-lasting 持久的 Read and learn 标志词. y y：形容词变副词，quick一quickly,easy一easily。 -ful /-less ul/-less:ham一haml(有害)→harmless(无害)，意义相反。 -tion -ion:动词变名词，invent-一invention,pollute-一pollution。 合成词 合成词：evey+day一everyday(日常的)，green+house-一greenhouse(温室 Think and share How has complete the car changed our life?Let's read and the story with the correct word forms! 10%Ga☒ Practise Complete the passage with the correct form of the words in the box. pollute use day harm easy every invent Cars:a changing story In the early 20th century,cars were welcomed as a very use一，They helped people travel more Over the years,cars have become an everyday need for many families.However,cars cause probes.Cars produceaes that pollute the air.Road travel makes about 15%of the world's CO2 emissions.Theued by cars has been a serious danger to the environment.Electric cars bring a greener future. Retell Cars:a changing story (answers) Cars were welcomed as a very useful invention.They helped people travel more easily.Over the years,cars have become an everyday need. Cars produce harmful gases that pollute the air.The pollution caused by cars has been a serious danger.Electric cars are greener. 地球是我们的家 低色 保护环境音大家 What was plastic like Why was it called when invented? an "environmental her " How much plastic do What problems does we eat a week? it cause in the sea? What must we do with plastic? Talk and share Talk about using plastic Example Why was plastic What harm once a hero? does it do now? Live green How can we What is your use it wisely? green choice? Useful expressions: ·pollute→pollution/polluted ·harm→harmful/harmless .invent→invention ·use plastic wisely ·break down With no Planet B... wisely. A:Why was plastic once a hero? B:Because it was light,cheap and long-lasting. A:What harm does it do now? B:It is harmful to sea animals and land animals. A:How can we use it wisely? B:We should reuse bags and refuse single-use plastic. A:What is your green choice? B:I take a cloth bag which I can use again and again. Checklist Content Use the thinking map to ☆☆☆ t化ry6 rMdtfd7i0ixes Language -ly/-ful/-less/-tion, ☆☆☆ compounds)used correctly. Pronunciation Be natural and fluent. ☆次☆ Blackboard design waste Word formation -ly:quick-→quickly,easy→easily(副词) -ful /-less:harm-harmful harmless -tion:invent->invention,pollute->pollution 合成：every+day→everyday,green+-house-→greenhouse 搭配：break down/take hundreds of years e.g.With no Planet B,we must use plastic wisely! Thank you！