Unit 7 第3课时 Communicate&Extend（教学课件）英语沪教版四年级下册（新教材）

Unit 7 沪教版小学英语四年级下册（三起） How do things change? Communicate&Extend Teaching objectives 学生能够掌握核心单词及短语：solid, liquid, gas, change, melt。学生能够听懂并理解“Things change!”主题下的听力内容，区分固体、液体、气体的特征，理解物质形态变化的简单原理。 学生能够根据图片及听力内容，完成Listen and number. Then say.的任务，正确标注图片序号并跟读描述。学生能够运用核心词汇和句型，结合食物词汇，完成Make and say.部分的对话创编，模拟制作饮品/食物的交流场景。 学生能够结合生活实际，列举生活中物质形态变化的实例（如冰融化成水、等），并用英语简单描述变化过程。学生能够小组合作，设计一份“Mixture Book”，创作3-4种自制混合饮品/食物的方案，用英语介绍制作材料、形态变化及特点。 学习理解： 应用实践： 迁移创新： Teaching objectives solid, liquid, gas, change, melt, freeze, boil, tomato and egg soup, banana yogurt, fruit salad, strawberry ice drink This/These thing(s) can change. Shall we make a strawberry ice drink? It is red and yellow. 核心单词短语： 核心句子： Lead-in Presentation Practice Summary Homework Contents Lead-in 猜谜 1. I am hard. I can keep my shape. I am ______. solid liquid gas 3. You can't see me, but you can feel me. I am ______. 2. I am wet. I can flow. I am ______. Presentation Word adj.塑料的 例句： This is a plastic bag. 这是一个塑料袋。 plastic [ˈplæstɪk] 短语：plastic bag 塑料袋 Word v.放 例句： Put on your coat. 穿上你的外套。 put [pʊt] 短语：put on 穿上 Word n.巧克力 例句： I like chocolate. 我喜欢巧克力。 chocolate [ˈtʃɒklɪt] 短语：a bar of chocolate 一块巧克力 Word v.摇动 例句： Let's shake hands. 让我们握手吧。 shake [ʃeɪk] 短语：shake hands 握手 Word v.结冰;冻住 例句： Water can freeze. 水会结冰。 freeze [friːz] 短语：freeze water 把水结冰 Listen and number.Then say. Listen and number.Then say. 1 4 3 2 Make and say. 变复数：变y为i+s Think and write. Extend. Extend. 原型：be 短语：be made of 由……制成 连词：或者 连词：和 连词：但是，表转折 Extend. Extend. be+doing表示正在做某事 freezing原型：freeze changing原型：change melting原型：melt boiling原型：boil Practice 知识点 现在进行时（描述正在发生的变化） 本单元用于描述物质的变化过程，如冰融化、水沸腾等。 现在进行时结构为“主语+be动词(am/is/are)+动词-ing形式”，用来描述此刻正在进行的动作或正在发生的变化。 例句： The ice is melting. 冰正在融化。 单项选择 ( )1.The water ______ boiling. A. is B. are C. am ( )2.The ice ______. A. melting B. is melting C. melts ( )3.They ______ making fruit salad. A. is B. are C. am ( )4.I ______ cutting the oranges. A. are B. is C. am A B B C 写出动词的-ing形式 1. melt → ________ 2. boil → ________ 3. freeze → ________ 4. make → ________ melting boiling freezing making 句型转换（改为现在进行时） 1. The water changes into gas. ____________________________________________ 2. The ice melts. ____________________________________________ 3. They make strawberry ice drink. ____________________________________________ 4. She cuts the oranges. ____________________________________________ The water is changing into gas. The ice is melting. They are making strawberry ice drink. She is cutting the oranges. 知识点 描述事物的句型（It is/It looks/It smells...） 本单元用多个感官类句型描述事物特征： ①It is + 颜色/形容词，描述事物本身的属性； ②It looks + 形容词，描述视觉上的样子； ③It smells + 形容词，描述嗅觉上的气味，多用来描述食物、饮品的特点。 例句： It is red and yellow. It looks nice and smells good. 它红黄相间，看起来很棒，闻起来很香。 单项选择 ( )1.The soup ______ nice. A. look B. looks C. looking ( )2.It ______ sweet. A. smell B. smells C. smelling ( )3.The banana yogurt ______ white. A. is B. are C. am ( )4.The fruit salad ______ colourful. A. am B. are C. is B B A C 连词成句。 1.is, red, yellow, it, and (.) —____________________ 2.nice, it, looks (.) —____________________ 3.smells, good, it (.) —____________________ 4.sweet, it, is (.) —____________________ It is red and yellow. It looks nice. It smells good. It is sweet. Summary Summary Words & phrases solid, liquid, gas, change, melt, freeze, boil, tomato and egg soup, banana yogurt, fruit salad, strawberry ice drink Sentences Shall we make a strawberry ice drink? Summary Sentences It is red and yellow. This/These thing(s) can change. It looks nice and smells good. Homework Homework 基础题：1. 单词与短语：抄写核心单词solid, liquid, gas, change, melt, freeze, boil及短语tomato and egg soup, fruit salad各3遍，边写边拼读。 2. 句子仿写：仿照核心句型“It is + 形容词. It looks + 形容词. and smells + 形容词. I like it!”，描述家里一种食物（如apple juice, cake），写3组完整句子。 3. 听力匹配：听录音，将Extend板块中物质形态变化的句子与对应的图片连线（教师提前录制配套音频）。 Homework 提高题：1. 对话创编：根据Make and say.部分的场景，编写一段不少于5句的对话，内容围绕“制作水果沙拉/草莓冰饮”展开，需包含核心句型“Shall we...?”及物质变化相关描述。 2. 短文填空：根据Extend板块短文内容，完成短文填空（挖去核心单词及短语），补全短文缺失内容。 3. 图片描述：观察Communicate板块中Things change!的四幅图片，用英语逐幅描述图片内容及对应的物质变化，每幅图写2-3句话。 Homework 拓展题： 1. 科普小短文：结合科学课知识，写一篇50词左右的英语小短文，主题为“Things Change in Our Life”，介绍至少2种生活中物质形态变化的例子，运用所学核心词汇和句型。 2. 创意任务：制作一份英文“Mixture Book”手账，绘制3种自制混合食物/饮品的插画，每幅图旁用英语标注名称、制作材料、形态变化及简单介绍。 3. 口语展示：录制一段1分钟的英语短视频，向家人介绍生活中一种可变化的事物（如蜡烛、冰块、水蒸气等），清晰描述其形态变化及原因，要求发音准确、表达流畅。 Thanks for Your Listening! null Blues 405896.28 $freeze. shake. Page sixty one, unit seven, how do things change? Page sixty two, get ready. A listen, then point and say. one, water is a liquid. We drink water every day. Two, ice is a solid, is cold and hard. Three, can you hold gas? No, I can't. Four, put some sugar in the milk. IT tastes sweet. Five, add some salt to the . soup. Six, there's some cream. Seven, ice . cream notes quickly on a hot day. Page sixty four, explore, let's make ice cream one. Today is our school party. Let's get the ice cream. It's in the freezer. Oh. no, the freezer door . is open. Look at the ice cream now. There's no ice cream for the party too. Shall we make some . more sure? But . don't worry, I can . teach you . great. okay? Kids get some big and small plastic bags, then come to the classroom. Page sixty five . three. I have ice. I have cream, sugar and salt. What shall we do? Mix the sugar and cream, then put the mixture in a small bag. Come. let's add some chocolate. good. Look, i'm putting . salt and ice in the big bag. I'm putting the small bag in IT too. No, shake, shake. shake. The eyes is freezing . mixture. Look, we have ice cream for. How's . the ice cream? kids? Can we have some . more F, R for . freezer? Page sixty seven. See, listen and chance. Let's make chicken soup. Today is our family day. Let's make some food. How about some soup? Wash the pot, wash the chicken. Shall we wash some two? Put the . chicken in the pot at the carrot, then at some salt. Shall we have some? Sure, I can wait. The chicken soup tastes great. learn. Shall we wash some carrots? sure. Let's make some soup. okay. Page sixty eight, communicate a listen and number then say. we see these things every day. Can you guess? One, it's a solid IT melts when it's hot. We like eating IT on hot days. Two, this is a solid. When we make IT hot IT gets big. IT tastes good. Three. these are solid. Fire melts them into a liquid. They get shorter and shorter, for these are small solids. When we put gas in them, they get big. We can see them at parties. Page seventy extend what is our world made of. Everything in our world is a solid, liquid or gas. Ice and metal are solid. Water and milk are liquids. Air and steam are gases. But things change. The ice is a solid. Now it's melting, is changing into a liquid. The water is a liquid. Now it's freezing. It's changing into a solid. The water is a liquid. Now it's boiling. It's changing into a gas. chocolate. plastic. put.