Unit5语法专项课件- 一般现在时 & 一般过去时被动语态课件 2026-2027学年人教版九年级英语上册

该初中英语课件聚焦一般现在时与一般过去时被动语态，通过主动与被动语态的定义、公式及例句对比导入，搭建从已知主动结构到未知被动结构的学习支架，系统梳理两种时态被动的肯定、否定、疑问结构及过去分词变化规则。 其亮点在于采用表格化呈现时态结构、分层设计动词填空等题型，并汇总主谓一致等高频陷阱，助力学生在语言能力（准确运用被动结构）、思维品质（分析时态与主语匹配）、学习能力（掌握四步转换法）上提升，既帮助学生夯实语法基础，也为教师提供清晰教学路径。

教学课件 新人教版九年级上册 Unit5 语法专项 —— 一般现在时 & 一般过去时被动语态 全解精讲+分层练习 1 1.区分主动语态与被动语态，理解使用场景 2.熟记一般现在、一般过去时被动肯定 / 否定 / 疑问结构 3.掌握动词过去分词变化规则，熟记高频不规则变形 4.学会主动句变被动句四步转换法 5.规避主谓一致、无被动动词、by 短语等高频丢分陷阱 学习目标 基础概念 —— 主动语态 1.主动语态：主语是动作的发出者 2.公式：动作发出者 (主语)+ 谓语 + 动作承受者 (宾语) 例句：Workers build many high-speed trains. 句意：工人们建造高铁，workers 是建造这个动作的执行者 使用场景：想突出 “谁做了这件事” 时用主动语态 基础概念 —— 被动语态 1.被动语态：主语是动作的承受者，表 “被……” 2.公式：承受者 (主语)+be + 动词过去分词 +(by + 发出者) 例句：Many high-speed trains are built by workers. 使用场景：不知道、不需要强调动作发出者 日常省略 by 短语：Many high-speed trains are built. 两种时态被动结构速记表格 时态 被动完整结构 主语 be 动词搭配 适用场景 一般现在时 am/is/are + done 单数 / 不可数→is；复数→are；I→am 客观事实、常态、日常 一般过去时 was/were + done 单数 / 不可数→was；复数→were 过去某一时间发生的事 一般现在时被动语态（肯定句） 1.结构：主语 + am /is/are + 动词过去分词 2.时间标志词：every day, usually, now, always 例句 1：This kind of tool is used in factories. 例句 2：Lots of letters are sent by post every day. 核心：be 动词单复数和句子主语保持一致 一般现在时被动（否定 + 一般疑问） 1.否定式：am/is/are + not + 过去分词 例：The game is not played at school. 2.一般疑问：Is/Are + 主语 + 过去分词？ 问答示范：Are trees planted every spring? Yes, they are. not 可缩写：isn’t /aren’t 一般过去时被动语态（肯定句） 1.结构：主语 + was /were + 动词过去分词 2.时间标志词：in + 年份，ago, just now, last year 例句 1：The bike was bought last month. 例句 2：Many houses were built in 2010. 单数主语用 was，复数主语统一用 were 一般过去时被动（否定 + 一般疑问） 1.否定式：was/were + not + 过去分词 例：The bridge wasn’t finished in 2008. 2.一般疑问：Was/Were + 主语 + 过去分词？ 问答示范：Were the books sold yesterday? No, they weren’t. 缩写形式：wasn’t /weren’t 动词过去分词变化 —— 规则动词 1.绝大多数动词直接加 - ed：work→worked 2.以 e 结尾只加 d：use→used；create→created 3.重读闭音节双写尾字母 + ed：stop→stopped 4.辅音 + y 结尾，变 y 为 i+ed：study→studied 5.变化规则和动词过去式完全相同 单元高频不规则动词过去分词（必背） 1.make — made；send — sent；build — built 2.find — found；write — written；see — seen 3.区分：invent/invented 为规则变化，直接加 ed 4.做题提示：被动语态必须使用过去分词，不可用原形 5.易错：不能写成 is invent，正确 is invented 考点 1 by 短语用法详解 1.by 后接动作发出者，统一放在句子末尾 2.发出者不重要、未知时，直接省略 by 短语 3.完整句：The watch was made by my grandpa. 4.省略 by：The watch was made in 2020. 5.注意：by 后用人称宾格 by him/by her 考点 2 情态动词被动语态拓展 1.拓展结构：can/must/should + be + 过去分词 2.含义：能够 / 必须 / 应该被…… 例句 1：All waste must be cleaned up. 例句 2：These toys can be made by 3D printers. 注意：be 永远为原形，不随时态变化 考点 3 主动变被动四步转换法 第一步：主动句宾语移至句首，作被动主语 第二步：谓语替换为对应时态 be + 过去分词 第三步：主动主语放 by 后，可省略 第四步：时间、地点等修饰语序不变 例题：People grow rice. → Rice is grown by people. 考点 4 无被动语态的不及物动词 1.无被动常用词：happen, take place, appear, come true 2.错误示范：Great changes are taken place. 3.正确句子：Great changes took place last year. 4.原理：不及物动词无宾语，无法转换被动 5.做题技巧：看见 take place 直接排除被动选项 考点 5 被动语态主谓一致规则 1.be 动词单复数，只和被动句新主语匹配 2.单数主语 / 不可数名词→is /was 3.复数名词→are /were 例：The flower was watered.（单数） 例：Two flowers were watered.（复数） 易错陷阱汇总（语序 & 分词） 陷阱 1：被动漏写 be 动词，The car bought last week. 陷阱 2：不用过去分词，are invent、was send 均错误 陷阱 3：be 动词主谓不一致，Books was read. 解题核心：被动句缺一不可 ——be+done 易错陷阱汇总（时态 & by） 陷阱 1：时间标志与时态不匹配 yesterday 搭配 is built（错误），应 was built 陷阱 2：多余 by，无发出者仍强行加 by people 陷阱 3：不及物动词误用被动，happen 不能用于被动 做题先看时间词，再确定 be 动词形式 题型一 动词适当形式填空 1.This small tool ________(use) for cutting paper every day. 2.All the letters ____________(post) yesterday afternoon. 3.The new library ____________(open) to visitors now. 4.Many old houses ____________(pull) down ten years ago. 5.Metal ____________(melt) to make new things usually. 6.A nice gift _____________(give) to me last Christmas. is used were posted are opened were pulled is melted was given 7.These photos ___________(take) in the countryside every summer. 8.The first train _____________(produce) in 1804. 9.It ________(say) that tea was invented in China. 10.All rules ______________(follow) by students in school. 11.Those stone bridges _____________(repair) last winter. 12.Different kinds of fruits ___________(sell) in this shop. are taken was produced is said are followed were repaired are sold 题型二 单项选择 1.Paper ________ by Cai Lun thousands of years ago. A. invents B. was invented C. is invented 2.These toys ________ in the factory every day. A. make B. are made C. were made 3.—When ________ this school ________? —In 1995. A. was; built B. is; built C. did; build 4.Rubbish ________ every morning by cleaners. A. collects B. is collected C. was collected 5.This kind of cup ________ of glass. A. makes B. made C. is made B B A B C 6.Many trees ________ along the river last spring. A. planted B. are planted C. were planted 7.The rules ________ by all students, or they will get punished. A. must follow B. must be followed C. are follow 8.The accident ________ at 6 o’clock yesterday. A. happened B. was happened C. is happened 9.All the clothes ________ online every weekend. A. sold B. are sold C. were sold 10.The old machine ________ in the 1970s. A. is used B. was used C. uses C B A B B 题型三 主动句变被动句 要求：改写为对应时态被动语态，可省略 by 短语 1.Workers built this tall building in 2012. 2.People plant trees on the mountains every year. 3.The shop sells all kinds of handbags. This tall building was built by workers in 2012. Trees are planted on the mountains every year. All kinds of handbags are sold in the shop. 题型三 主动句变被动句 4.Someone cleaned the classroom ten minutes ago. 5.Teachers ask students to finish homework on time. 6.They held a big party in the hall last month. The classroom was cleaned ten minutes ago. Students are asked to finish homework on time by teachers. A big party was held in the hall last month. 题型四 句子改错 1.Many new products are make in this factory. 2.The museum complete three years ago. 3.A lot of books send to poor villages last year. 4.Great changes are taken place in our town. make → made 缺少 was、complete→completed send→were sent 去掉 are，taken→took 核心知识点总结 1.被动核心结构：be + 动词过去分词 2.两时态区分：现在 am/is/are；过去 was/were 3.转换口诀：宾提前，be 变形，动词变分词，by 可省略 4.禁忌：happen/take place 无被动；被动不能缺 be 5.拓展：情态动词被动：can/must/should + be done 解题步骤 第一步：看时间标志，确定用现在 / 过去被动 第二步：判断主语单复数，选定正确 be 动词 第三步：动词改为对应过去分词，区分规则 / 不规则 第四步：检查是否为不及物动词，排除被动误用 第五步：核对主谓一致、有无漏写 be 动词 教学课件 Unit5 语法专项 —— 一般现在时 & 一般过去时被动语态 Thank you for listening! 28 $