Unit 13 Section A (3a-3b)（作业课件）-【优翼·学练优】2025-2026学年九年级英语下册同步备课（人教版）

该初中英语课件围绕环保主题，聚焦Section A(3a~3b)的词汇积累、语法应用及阅读理解技能。通过World Earth Day背景导入，以词汇练习（如“科学的”“鲨鱼”等）和单项选择（被动语态、连词辨析）为基础，衔接“一瓶垃圾”挑战的阅读理解，构建从基础到综合的学习支架。 其亮点在于分层训练设计，基础部分通过词汇拼写和真题改编单选巩固语言能力，综合部分以家庭环保活动阅读文本培养思维品质与文化意识。学生在练习中提升语言运用能力和环保责任感，教师可借助系统素材优化教学，提高课堂效率。

优翼 优翼 学练优九年级英语(RJ) 优翼 第二课时 Section A(3a~3b) 优 积累词汇·打好基础 [.根据句意及括号内的汉语提示写单词。 1. (科学的)discoveries and inventions always bring us convenience. 2.It's (s残忍的)to keep large animals as pets in a small house. 3.The (is one of the most dangerous animals in the sea. 4.There is no doubt that China's space (工业)has developed fast in the past few years. 5.Each kind of wild animal is a part of the food （链)in the ecosystem. Ⅱ.单项选择。 )1.To protect endangered animals,we have made another against killing them. A.introduction B.deal C.law D.invention 优 ()2.It seems much harder to take in fresh air at the of high mountains, A.bottom B.end C.foot D.top ()3.(2024·成都武侯区二模改编) AI robots are good at maths and chess,simpler tasks (like picking us a glass may be challenging for them. A.Although B.If C.Because D.Unless 优星 ()4.(2023·成都改编)A great number of beautiful flowers on the second ring road in Chengdu these days. A.plant B.are planted C.are planting D.is planted ()5.(2024·东营)To0 much sugar can your health.So eat less sugar. A.be good with B.be harmful to C.be thirsty for D.be different from 优 B 综合训练·提升能力 Ⅲ.阅读理解。 April 22nd is World Earth Day-a day to remind people to protect the earth.So on that day,our family held an activity "bottle of trash (一瓶垃圾)challenge”.That means the trash needs to be put in a 600 ml bottle.We decided to challenge ourselves and produce as little trash as possible. My father worked online all day,so he didn't produce any paper waste except paper napkins. He made the least trash in our family. My mother cooked and produced plenty of kitchen waste,such as vegetable leaves,eggshells and food bags.What's worse,we couldn't eat up all the food of the dinner that day.So leftovers couldn't be avoided.It was not easy for Mom to deal with all the trash,but she found a way to put it all into the bottle.How amazing！ My sister,a 16-year-old student,was busy preparing for her exams.She had to use paper to work out math or physics problems.She used only one side of the paper in the past.But that day,she