Unit 4 How's the weather today?Lesson 21【学习目标】1.继续学习用“It's hot today.”等语句描述天气,巩固“Shall we...?”语句功能,能用“Can I have...?”语句提出请求,并能进行简单的对话交流。2.听、说、认读单词 cold、hot。3.在欢快有节奏的歌谣表演中,体验学习的快乐。【学习重难点】1.能够在情境中理解、会说、会用“It's hot today.”等语句描述天气。2.巩固“Shall we...?”语句功能。3.能用“Can I have...?”语句提出请求,并能进行简单的对话交流。【学习过程】一、Warm-up两人一组,拿着已学过的天气和活动图片,进行对话。S1: It's fine/ nice today. Shall we...?S2: OK. / Good idea. Let's go.二、Presentation1.A guessing game一个同学拿着两个水瓶,让其他同学猜猜里面是什么。2.学习 cold,hot。(1)四人一组,每组一杯凉水,一杯热水,分别触摸两杯水,边摸边谈自己的触摸感受及相应动作,感知凉和热这两个单词。(2)cold 与 cool,hot 与 warm 的区别。3.学习句型“Can I...?”(1)意思:我可以……吗?是征求别人意见的一种礼貌表达法。(2)操练:同桌互相练习句型,如- Can I have some cold water?- Here you are.4.一名同学做动作,另一名同学猜天气和活动。三、Practice1.Let's chant2.我想要……S1: Can I have...? (画一个菠萝)S2: A pineapple.S1: Yeah. Can I have a pineapple?S2: Sure. Here you are.