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解析

（3）Warming up and Lead-in Greet students as usual and play a song about travelling. Ask them some questions like if you want to travel, what luggage should you bring? And lead students to answer the question and lead in the topic. （设计意图：通过播放歌曲和提出问题可以吸引学生的兴趣和注意力，发散思维并很自然过渡到本节课所学话题。） Presentation Show some clips to teach “light, heavy, small, big...”; Show some real objects like cup and lead students to describe it: It’s heavy... It’s light... Then ask students to read the words and sentences one by one after the teacher in different ways. （设计意图：通过不同的方式呈现单词和句型，增加单词教学的趣味性，让学生更容易接受和掌握；利用实物呈现句型，活动的衔接性较好。） Practice Activity 1- High and Low voice Lead students to read the sentences: It’s heavy... It’s light... on the blackboard. When teacher reads sentences in a low voice, students should read in a loud voice and vice versa. Activity 2 -Do an antonym match heavy big small light Then work in pairs to role play the dialogue. （设计意图：采用游戏的方式练习句型能够增强句型学习的趣味性，寓教于乐，增强单词的识记效果；通过连线的方式，不仅能够巩固句型还能锻炼学生的反应能力，也能锻炼学生的听力。） Production Let students make a dialogue by using some words about describing objects and sentence patterns in groups of two: It’s... and choose some groups as representatives to give a performance and teacher gives some positive comments. （设计意图：通过小组活动的方式培养学生的团队合作能力和团队意识，让学生将所学知识运用到日常生活中去，符合新课标培养学生的综合语言运用能力的标准。）