资源简介 Unit 4 Section A (4a~4d) 学案学习目标语言知识:能掌握形容词 / 副词的比较级、最高级形式(如big→biggest、far→farthest),学会读写大数字,能用正确形式的词汇完成语篇。语言技能:能识别句子中的比较类形容词 / 副词、读写数字、完成语篇填空、创编比较类问题并交流。情感态度:能通过语法练习更精准地描述自然景观的特征,深化对自然奇观的认知。学习重难点重点:识别比较级 / 最高级形式的形容词 / 副词;正确读写大数字及运用词汇的比较级 / 最高级。难点:区分形容词与副词的比较级 / 最高级用法;准确使用词汇的正确形式完成语篇。自主学习(课前完成)语法预习:写出下列词的最高级形式:big:__________far:__________loud:__________数字练习:将 “6,300” 写成英文单词形式。课堂导学环节 1:导入(3 分钟)教师展示两个景观的图片,提问:“Which is bigger, the Sahara Desert or the Taklimakan Desert (用最高级回答)”引入本节课 “比较类形容词 / 副词的用法” 主题。环节 2:识别比较类词汇 ——4a(7 分钟)任务说明:圈出比较事物的形容词,划出比较动作的副词。识别实践:形容词(比较类):biggest、deepest、greatest、farthest副词(比较类):as well as语法解析:小组讨论 “最高级的构成规则”(如单音节词 +-est,多音节词前加most)。环节 3:读写大数字 ——4b(8 分钟)任务说明:写出或拼出数字的形式。完成练习:Mount Kilimanjaro is 5,895 (five thousand, eight hundred and ninety-five) metres high.25,768 (twenty-five thousand, seven hundred and sixty-eight) cubic metres of water pours down Inga Falls each second.The East African Rift Valley is about 4,000 (four thousand) miles long.The Taklimakan Desert has a total area of about 337,000 (three hundred and thirty-seven thousand) square kilometres.核对反馈:教师强调大数字的读写规则(千位与百位间加and)。环节 4:语篇填空(比较级 / 最高级)——4c(10 分钟)练前梳理:词汇的比较级 / 最高级形式:large→largest;amazing→most amazing;far→farther;close→closer;loud→louder练中完成:My friends and I visited Victoria Falls in Africa last year. Visiting one of the world’s largest waterfalls was a magical experience. As we went closer to the falls, the noise of the water slowly grew louder and louder. Then, right before our eyes, the waterfall appeared. It went on for as far as the eye could see. Later, we sat in a special pool at the top of the falls. There, we felt the water rush past us and become a part of the waterfall. It was the scariest but also the most amazing experience of our trip!逻辑分析:小组讨论每个词汇的选择理由(如closer表示 “离瀑布更近”)。环节 5:创编比较类问题 ——4d(7 分钟)任务说明:写出比较地点的问题,与同伴交流。创编示例:What is the highest mountain in Asia Which river is longer, the Yellow River or the Nile River What is the deepest lake in the world 小组交流:两人一组,一问一答分享创编的问题。课堂练习一、最高级填空用所给词的最高级形式填空:The Nile River is the ______ (long) river in the world.Victoria Falls is one of the ______ (amazing) waterfalls.二、数字读写将 “8,848.86” 写成英文单词形式。________________________________________________________________________________________________________________________________________三、问题创编写 1 个比较 “两个自然景观” 的问题(如 “Which desert is larger, the Sahara or the Taklimakan ”)。________________________________________________________________________________________________________________________________________参考答案一、1. longest;2. most amazing二、eight thousand, eight hundred and forty-eight point eight six三、示例:Which waterfall is higher, Angel Falls or Victoria Falls 展开更多...... 收起↑ 资源预览