Unit 4 Life on Mars Grammar-【名校培优课堂】2023-2024学年九年级下册英语同步教案（牛津译林版）

Unit 4 Life on Mars Grammar 设计说明 利用PPT引出从句，启发学生改写成简单句。分别举例、归纳，启发学生如何将含有从句的复合句改写成简单句。使学生在学习的过程中发展自己的观察力、想象力和思维能力。通过操练巩固已学知识，反馈矫正。以训练为主线，帮助学生消化学习内容。归纳三种从句转换成简单句的步骤或方法，强调特殊用法或易错之处并用教材中的练习帮助学生巩固。提醒学生注意介词的使用，再以同义句转换的形式加以联系反馈，让学生理清思路进一步提高学习能力。 教学目标 通过本课节的教学，让学生达成以下目标： 1.知识目标 掌握词汇：circle, agreement, possibility, doubt, stranger 2.能力目标 掌握状语从句、宾语从句、定语从句与简单句之间的转换 3.情感目标 增强保护环境的意识 重点难点 1. 重点：掌握从句与简单句之间的转换。 2. 难点：转换时注意时态和意思的一致性及准确性。 教学准备 PPT课件 授课时数 1课时 教学过程 Step 1 Lead-in Ask students to have a short review on clauses or simple sentences. Since students have learnt a lot about travel in space, ask them to find out clauses or simple sentences in Reading as many as possible. Step 2 Presentation A Using adverbial clauses or simple sentences 1. Ask students to rewrite some sentences. We can rewrite some adverbial clauses in simple sentences with prepositional phrases beginning with at the age of, because of and without. Neil Armstrong received his student pilot’s licence when he was 16. →Neil Armstrong received his student pilot’s licence at the age of 16. People might float in space because the gravity is slow. →People might float in space because of the low gravity. Humans cannot survive if there is no food, water or oxygen. →Humans cannot survive without food, water or oxygen. 注意：转换时要注意时态和意思的一致性和准确性。 2. Have a conclusion 状语从句→简单句 通过because of, without, at the age of介词短语将状语从句转换为简单句。 ·时间状语从句可借助介词短语转化为简单句。 ·because引导的原因状语从句可用介词短语because of转换为简单句。 ·if not引导的条件状语从句可借助without短语转化为简单句。 Step 3 Drills Learning about outer space Daniel is writing about visiting another planet. Help him rewrite the sentences using the words in brackets. 1. Neil Armstrong took his first flight when he was only six. (at the age of) _____________________________________________________________ 2. Yuri Gagarin became the first man to go into outer space at the age of 27. (when) _____________________________________________________________ 3. People might move to another planet in the future