Unit 8 Section A 第3课时Grammar Focus(4a 4c)-（教师用书）【中考123】2025-2026学年八年级下册英语全程导练（人教版·新教材）

本初中英语讲义聚焦现在完成时中since和for的用法这一核心知识点，通过填空练习夯实基础，句型转换（含一般疑问句、特殊疑问句、时态改写及同义句转换）深化语法应用，再结合词汇填写、句子翻译与补全对话，构建从基础到综合语用的学习支架。 该资料设计注重语言能力与思维品质的培养，如补全对话围绕志愿者经历创设真实情境，引导学生在交流中运用语法知识，提升语言表达与情境推断能力。课中助力教师系统开展语法教学，课后通过多样化练习帮助学生巩固知识，查漏补缺，强化综合语言运用能力。

第3课时　Grammar Focus(4a­4d) [答案 P22] 一、用since或for填空。 1．They have been good friends since they were in primary school. 2．My sister has studied English for five years. 3．He has worked in this company since he graduated from college. 4．We have lived in this city since 2018. 5．The movie has been on for half an hour. 二、句型转换。 1．I have worked with a sports organization for almost three years． ①(改为一般疑问句)Have you worked with a sports organization for almost three years? ②(对画线部分提问)How long have you worked with a sports organization? 2．Since I started, I have helped out at over ten different sports events.(对画线部分提问) How long have you helped out at over ten different sports events? 3．The stadium was so big that they got lost.(用现在完成时改写，保持句意) The stadium has been so big that they have got lost. 4．Mrs Li became a teacher in 2015.(改为同义句) ①Mrs Li has been a teacher for ten years. ②Mrs Li has been a teacher since ten years ago. 5．She borrowed this book last week.(改为同义句) ①She has kept this book for a week. ②She has kept this book since last week. 三、根据首字母或句意填写单词。 1．My uncle used to serve in the army when he was young. 2．Kids in primary school need more care and patience from teachers. 3．Could you help out with the charity event this weekend? 4．Many people donate money to charity to help those in need. 5．The old man greeted us warmly when we visited him. 四、根据汉语意思完成句子，每空一词。 1．我已经在体育组织做志愿者差不多三年了。 I have been a volunteer with a sports organization for almost three years. 2．自从我开始做志愿者，我已经在十多个体育赛事中帮忙了。 Since I became a volunteer, I have helped out at over ten different sports events. 3．我已经交了很多新朋友，甚至见过许多著名运动员。 I have made many new friends and I have even met many famous athletes. 4．上周日我们在一场足球慈善比赛中做志愿者。 We volunteered in a charity football match last Sunday. 5．我给他们指了去车站的路，他们微笑着向我热情道谢。 I gave them directions to the station, and they smiled and thanked me warmly． 五、补全对话。 (An interviewer is asking a volunteer some questions …) A: Hi! Thanks for sharing your volunteer story. 1.C? B: I love being a volunteer! 2.F． A: That's amazing! What have you done since you started? B: 3.B． And I have made many new friends. Also, I have even met many famous athletes. A: Wow, really? Can you give me an example? B: Sure! 4.A． They were at a stadium for a charity match. A: What happened then? B: The stadium was so big that they got lost. 5.D． A: That's so nice! Did you ask them for a signature? B: Yes! Before they left, I asked them to sign a football for me, and they did! They said they were happy to meet a fan from a different country! A．Last month, I met two national football players from Argentina B．Since I started, I have helped out at over ten different sports events C．How long have you been a volunteer with the sports organization D．I gave them directions, and they smiled and thanked me warmly E．Before they left, I asked them some questions F．I have worked with the sports organization for almost three years 学科网（北京）股份有限公司 $