Unit 13 第一课时 Section A (1a-2d)-【木牍中考·名师教案】2025-2026学年九年级下册英语（人教版）

Unit 13　We’re trying to save the earth! 第一课时　Section A (1a-2d) ◇目标导航◇ 类别 课时要点 重点单词 litter v.乱扔 n.垃圾;废弃物 ship n.(大)船;舰 v.船运;运输 ugly adj.丑陋的;难看的 advantage n.优点;有利条件 cost v.(cost,cost)花费 n.花费;价钱 wooden adj.木制的;木头的 plastic adj.塑料的 n.塑料;塑胶 takeaway n.外卖食物 bin n.垃圾箱 重点短语 throw...into... 把……扔进……里 put...into... 把……放进……里 be full of 充满…… close down 关闭 play a part in 参与 clean up 打扫干净 get worried 担心 cut down 砍倒;削减 public places 公共场合 make a difference 产生影响/作用 lead to 导致;通向 重点句型 1.But it used to be so clean!但它以前很干净! 2.Everyone in this town should play a part in cleaning it up!镇上的每个人都应该尽一份力把它清理干净! 3.Yes,I used to be able to see stars in the sky.是的,我以前可以看到天上的星星。 教学重点 1.让学生能听懂关于环境污染和环境保护的听力材料。 2.让学生能正确运用现在进行时、used to结构、现在完成时、被动语态和情态动词谈论环境污染和环境保护。 教学难点 1.让学生能够理解和运用现在进行时、used to、被动语态、现在完成时和情态动词。 2.让学生能够通过图片预测听力的内容。 3.让学生学习归纳带有前缀、后缀的词汇的构成。 ◇教学过程◇ 预习指导 一、方法指导 1.预习Page 97~98上的生词,根据音标能读出这些词,并掌握其词性及汉语意思。 2.朗读1a-2c中的句子和对话,并试着翻译成汉语。 3.和搭档分角色朗读2d中的对话。 二、预习检测 汉译英 1.充满了垃圾 　be full of rubbish　  2.把垃圾扔入河中 　throw litter into the river　  3.尽一份力把它清理干净 　play a part in cleaning it up　  4.土地污染 　land pollution　  5.产生影响 　make a difference　  课堂教学 Step 1 Leading in 1.Greeting. 2.Discussion. Discuss with the students like this: T:What kinds of pollution are there these days? Ss:... T:What causes the pollution? Ss:... 3.Write down the words and expressions about the topic on the blackboard. Step 2 Work on 1a 1.Show pictures about pollution in 1a and talk about the pollution with the students. 2.Ask the students to read the words in 1a and write them in the box and add more words. 3.Ask the students to say out their words in each kind of pollution. Step 3 Work on 1b 1.Read the instructions.Get the students to read the contents in the chart and think of what they will fill in the blanks. 2.Play the recording for the first time.Let the students listen and fill in the blanks. 3.Play the recording a second time.Ask the students to check the answers.Then ask the questions in the chart.Let the students answer with full sentences. 4.Ask more questions to help the students learn more details.Then play the recording for the students to role⁃play the conversation. Step 4 Work on 1c 1.Show the key words of the conversation.Ask the students to retell the contents in the chart. What:bottom,rubbish,fish... Why:littering,putting waste into the river... How:write to,close down,help to clean up... 2.Ask the students to read aloud the dialog in 1c.Then let them work in pairs to role⁃play the conversation. 3.Ask the students to make a new conversation about the other kinds of pollution in 1a. 4.Ask two pairs to perform their new conversations in class. Step 5 Work on 2a-2b 1.Use PPT or pictures to show the four kinds of pollution.Get the students to work in groups and have a competition to say words about the pollution one by one. Land pollution:... Air pollution:... Noise pollution:... Water pollution:... 2.Get the students to write down these words in their notebooks. 3.Play the recording for the first time.Let the students listen and circle the kinds of pollution.Check the answers with the class. 4.Let the students read the sentences in 2b and predict the contents they will fill in.Play the recording a second time.Let the students listen and complete the sentences. 5.Play the recording again.Check the answers with the whole class. Step 6 Work on 2c 1.Ask the students to read the conversation in 2c.Then read the listening materials of 2a and discuss in pairs what causes the two kinds of pollution. 2.Let the students work in pairs to make dialogs. 3.Ask three pairs to role⁃play their conversations to the class. Step 7 Work on 2d 1.Ask the students to think about the question:What are your ideas for solving the air/waste pollution problems?Teach them the new words in the conversation. 2.Make the students read the conversation in 2d quickly and find out the problems about environmental pollution in the conversation. 3.Ask the students to read the conversation again.Ask the students to find the ways to solve the problems of air and waste pollution. 4.Let the students read aloud the conversation after the recording. 5.Teach the students the useful expressions: What are your ideas for doing... To cut down air pollution,we should... So together,our actions can make a difference and... 6.Let the students role⁃play or read the conversation in pairs until fluently. 板书设计 1.turn...into... 把……变成…… 2.take、spend、pay和cost都可以表示“花费”,但它们的用法各有不同。 (1)take多表示花费时间,常用于It takes sb.some time to do sth.这一句型中,其中It作形式主语。 (2)spend多表示花费时间和金钱,主语通常是人,常用结构:sb.spend some time/money on sth.;sb.spend some time/money (in) doing sth.。 (3)pay多表示花费金钱,主语通常是人,常用结构:sb.pay some money for sth.。 (4)cost多表示花费金钱,主语通常是物,常用结构:sth.cost (sb.) some money.。 3.make a difference (to...)意为“(对……)产生影响或作用”。 ◇教学反思◇ 　　本课时主要讨论了环境污染问题,学生对此有比较深刻的背景知识,很容易产生共鸣。此外,老师在教学过程中应鼓励学生思考如何保护环境、保护人类赖以生存的地球,让学生从身边小事做起,从自己做起,为地球的未来贡献力量。 1 立足安徽 精准备考 1 / 1 学科网（北京）股份有限公司 $