Unit 8 Making a Difference (Period 3)Section A (Grammar Focus-4d)学习任务单2025-2026学年人教版英语八年级下册

该初中英语学习任务单聚焦现在完成时“未完成用法”，以词汇（army, primary等）和过去分词为基础，通过句子朗读、for/since用法对比、延续性与非延续性动词转换练习搭建学习支架，衔接课前检测、课堂探究与课后巩固，形成完整学习脉络。 资料突出语言能力与思维品质的培养，通过小组采访“志愿经历”提升交际表达能力，动词转换练习强化逻辑分析，习题设计分层递进，如for/since填空、短文填空及课后判断改错题，助力学生掌握语法要点，发展自主学习能力。

Unit 8 Making a Difference (Period 3) Section A (Grammar Focus-4d) 班级_________ 姓名_________ 学习目标 学完这一课，你能够掌握： 1．词汇：army, primary, help out, charity, warmly。 2．语法：现在完成时的“未完成用法”，区分for与since的用法，掌握延续性动词与非延续性动词的转换。 3．交际功能：用现在完成时描述志愿经历等，并能正确使用for和since进行时间表达。课前学习任务 【学习任务一】词汇检测 1．n. 军队__________ 2．adj. 小学教育的；首要的__________ 3．分担工作；帮忙做__________ 4．n. 慈善机构（或组织）；慈善事业__________ 5．adv 热情地；温暖地________ 【学习任务二】写出下列动词的过去分词形式： meet → __________ help → __________ be → __________ work → __________ start → __________ 课堂学习任务 【学习任务一】朗读以下句子，标出包含for或since的句子： Have you been to our animal shelter before? No, I haven’t. But one of my friends has volunteered here for a long time. Has she ever done volunteer work? Yes, she has. She has been a volunteer at a nursing home since last August. How long have you been a volunteer? I have been a volunteer here for a few months. How long has he worked as a volunteer at the museum? He has volunteered here since his summer holidays started. 【学习任务二】观察Grammar Focus表格中的句子，小组讨论for和since的用法。 单词 用法 例句 后接一段时间 I have studied English for 5 years. 后接时间点 She has been ill since Monday. 【学习任务三】将下列非延续性动词转换为延续性动词或“be+形容词/副词”结构： 1．现在完成时的“未完成”用法。 表示动作或状态从________某时开始，一直延续至今，还可能继续下去。此时常与“________+一段时间”“________+表示过去的时间点”或“________+一般过去时的句子”连用。谓语动词用________（延续性/非延续性）动词，对for或since引导的时间状语提问用________。 2．延续性动词与非延续性动词。 （1）含义： __________动词表示能够延续的动作，这种动作可以延续下去或产生持久影响。__________动词也叫终止性动词、瞬间动词等，表示不能延续的动作，这种动作发生后即刻停止。 （2）用法： ①常见的延续性动词有learn、work、______________________________________等，________（能/不能）与表示一段时间的状语连用。 ②常见的非延续性动词有open、close、____________________________________等，表示某个动作的结果还存在，________（能/不能）与表示一段时间的状语连用。有些非延续性动词可以用延续性动词替换。 ③在否定句中，非延续性动词________（能/不能）与表示一段时间的状语连用。 3．非延续性动词转换为延续性动词的方法。 （1）将非延续性动词转化为“be+形容词或副词”，这样才能和时间段连用： begin/start →__________ go there →__________ come back →__________ come here →__________ open →__________ close →__________ die →__________ marry →__________ finish →__________ go to bed →__________ leave →__________ return →__________ get out →__________ fall asleep →__________ lose →__________ fall ill →__________ get/arrive/reach →__________ join/become →__________ （2）有的非延续性动词可以转化为意思相同的延续性动词： borrow →__________ put on →__________ become →__________ get to know →__________ buy →__________ catch a cold →__________ receive →__________ go to sleep →__________ 【学习任务四】用for或since填空。 1．He has been a teacher __________ 2010. 2．They have been married __________ 20 years. 3．I have had this book __________ last month. 4．She has been away __________ three days. 【学习任务五】短文填空。 I __________ (join) the charity last year. Since then, I __________ (help) out at the primary school many times. The children __________ (be) always happy to see us. 【学习任务六】小组采访。​ 用“How long have you...?”句型采访同学，记录信息。 课堂小结 请根据本课所学内容，列出关键词或画出你的思维导图吧！ 课后任务 判断下列句子是否正确。如果错误，请改正。 1．How long has Mary left? ( ) _________________________________________________ 2．How long has he borrowed the book? ( ) _________________________________________________ 3．Maria has come back since Monday. ( ) _________________________________________________ 4．Tony has bought the computer for two years. ( ) _________________________________________________ 学科网（北京）股份有限公司 $