Unit 13 Section B(3a-3b) & Self Check（word教案）-【优翼·学练优】2025-2026学年九年级英语下册同步备课（人教版）

该初中英语教案聚焦环境主题，核心知识点包括"need to be improved"等词汇、"The river used to be so clean"等句型及现在进行时、被动语态等语法复习。通过讨论环境问题及各方责任导入，承接单元前期内容，为写作搭建知识支架。 此教案以任务驱动融合语言能力与思维品质，如3b环节引导学生先明确写作要点，独立完成给市长的建议信后互评分享，提升语言表达与合作学习能力。结合Self Check的词缀探究和语法匹配，培养学习策略，助力学生综合运用知识，也为教师提供结构化教学流程，高效落实单元复习。

The Fifth Period－Section B(3a－3b) & Self Check Teaching Important Points　【教学重点】 　Key words & phrases： 　need to be improved，cause the problem，is getting worse and worse 　Key sentences： 　1.The river used to be so clean. 　2.We have seen many changes in the environment. 　3.People should take public transportation more. 　4.The river is polluted by factories. 　5.The air pollution is getting worse and worse. 　Key structure： 　Review present progressive，modal verbs，passive voice，used to，present perfect tense Teaching Difficult Points　【教学难点】 　★Use the words and structures to write a letter to the city mayor about the environmental problems and give suggestions. Teaching Aids　【教学工具】 　CAI，pictures or multimedia courseware. Teaching Steps　【教学过程】 ★Step 1　Leading in　【新课导入】 1．Greeting 2．Discuss what we should do and what the government and organizations need to do about the environment. ★Step 2　Cooperative inquiry　【合作探究】 1．Finish the task in 3a ①Show a few pictures about the neighborhood.Talk freely with the students. Where is this？Is it a nice place？Why or why not？What are the problems? ②Read the instructions in 3a.Discuss the questions in group.Each express his/her opinion.Then finish the task. ③Ask some students to report their discussion. 2．Finish the task in 3b ①Read the instructions.Show the writing points on the board.Learn how to finish the letter. ②Write the letters on their own. ③Exchange their writing work with each other.They can learn from each other and help each other. ④Check their work with the whole class.Get three students to read aloud their letters. 3．Finish the tasks in Self Check Activity 1 ①Read the demand and know what to do.Students finish the task on their own. ②Students discuss the word formation. ③Check the work with each other.Learn the words and the prefixes and suffixes.Think of more words. Activity 2 ①Teach the students the meaning of the grammar names in Chinese. ②Match each sentence with the grammar structure. ③Ask them to write another sentence for each grammar structure.Tell the students to write their sentences on the blackboard and check them. Activity 3 ①Write the four kinds of pollution.Discuss ways to cut down them in groups. ②Students write ways to cut down them. ③Share their ways. ★Step 3　Homework 1．Practice giving suggestions to protect the environment after class. 2．Write ways of cutting down the four kinds of pollution. 3．Translate the following sentences into English. (1)我们城市的环境这几年变好了。 ________________________________________________________________________ (2)我们应该少开车，多使用公共交通工具。 ________________________________________________________________________ (3)大气污染正变得越来越严重。 ________________________________________________________________________ Board Design　板书设计 present progressive，modal verbs，passive voice，used to，present perfect need to be improved，cause the problem，is getting worse and worse Teaching Reflection　【教学反思】 　　　This is the last period of the unit.Students will use what they have learned in the unit.They will use them to write a letter about how to protect the environment.And they will do a lot of work to practice words and expressions.They review the word formation and learn these words.When finishing a unit，we usually get the students to review the whole unit. 学科网（北京）股份有限公司 $