Unit 4 Grammar Focus (4a-4d)（word教案）-【优翼·学练优】2025-2026学年八年级英语下册同步备课（人教版）

该教案聚焦比较级、最高级复习及大数字英文读法，通过自然奇观图片引导学生结对比较，用目标语言对话激活旧知，为语法规则梳理搭建学习支架，衔接后续探究环节。 资料以互动任务提升语言能力，如4a圈划形容词副词、4d结对总结比较句型并描述景点。大数字教学结合具体示例（如345,678,912划分与读法）总结规则，培养学习能力。教学反思关注复杂语境中最高级运用难点，分步引入并借助记忆技巧，助力思维品质提升，既让学生实践掌握语法，又为教师提供清晰教学路径，提高课堂效率。

第四课时 Grammar Focus (4a-4d) 1、 Teaching Objectives In this class, students will: 1. review the usage of the comparatives and superlatives. 2. master the rules about how to read large numbers in English. 3. talk about more natural wonders and places using the target languages. 2、 Teaching Advice Lead-in Look and Say 1. Present several sets of pictures about natural wonders and ask students to compare them in pairs. The teacher can use the following questions as prompts. · What do you see in the pictures? · Which do you think is longer/the longest/higher/the highest/larger/the largest/. ? · Is... the biggest/longest/... in the world? · Which wonder impresses you most?Why? 2. Invite 1-2 pairs to make up a conversation to compare one set of the wonders in class. 3. Guide students to pay attention to the comparatives and superlatives they use and recall the usage. Explore the Grammar 4a 1. Have students read the sentences and circle the adjectives and adverbs. 2. Invite some students to share their answers and ask them what things are compared in these sentences. 3. Explain the difficult parts for students. 4.Guide students to recall the formation and usage of the comparatives and superlatives. 5. For the large numbers in the answers, the teacher can ask students to read them and summarize the rules. Grammar Rules 形容词和副词的比较级和最高级的构成 形容词和副词的比较级和最高级的用法 “as十形容词或副词原形十as”句型 1.表示两者在某一方面相同时,用“as+形容词或副词原形十as”的句型。例如: I think science is as important as maths. Tom runs as fast as Jack. 2.表示一方在某一方面不及另一方时,用“notas/so+形容词或副词原形+as”的句型。例如: It is not as/so warm today as yesterday. He did not come as/so early asWang Lin. 大数字的英文读法 1.英语里数字的基本单位有:hundred(百),thousand(千),million(百万),billion(十亿)， trillion(万亿,兆)。例如:300读作three hundred,5000 读作five thousand。 2.具体数字读法:以数字345678912为例: (1)从右向左划分:按照三位一节,用逗号隔开,这个数字可划分为345,678,912。从右 往左,第一个逗号前是千(thousand),第二个逗号前是百万(million),第三个逗号前 是十亿(billion)。 (2)依次读出每一节:最右边一节912,读作“nine hundred and twelve”(注意,在英式英语 中,百位和十位之间常用and连接,美式英语中,and可省略)。中间一节678，读作 “six hundred and seventy-eight”,加上它的单位“thousand”，这部分就读作“six hundred and seventy-eight thousand”。最左边一节345，读作“three hundred and forty-five”,加上单位“million”,这部分读作“three hundred and forty-five million”。 (3)组合起来:整个数字就读作“three hundred and forty-five million, six hundred and seventy-eight thousand,nine hundred and twelve”。 注意:小数点读作“point”,小数点左边的数按整数读法读,右边的数依次读出每个数 字。例如,3.14读作“three point one four”;8848.86读作“eight thousand,eight hundred and forty-eight point eight six”. Grammar Exercises 4b 1. Ask students to write or spell out the numbers. 2. Have students check answers in pairs. And invite some pairs to share their answers by reading the completed sentences. 4c 1. Let students read the passage and summarize the main idea. 2. Ask students to complete the passage with the correct forms of the given words. 3.Check the answers with the whole class and explain the tricky parts. 4d 1. Have students work in pairs to summarize the sentence patterns for comparing places. 2. Present some famous places or wonders for students to compare. Have students talk about these places using the sentence patterns they summarize. 3. Invite some pairs to share their conversations. Summary Ask students to summarize what they learned in this lesson. Homework Finish the related exercises in the books produced by Youyi. Blackboard Design Write the grammar rules on the blackboard. Teaching Reflection This lesson aimed to review comparatives，superlatives,and large numbers. I noticed that some students didn't grasp the use of superlatives in complex contexts. For improvement,next time I'll introduce superlative scenarios step by step and use mnemonic devices for number units.. 学科网（北京）股份有限公司 $