Unit 8 Section A (4a-4c) 同步短语与语法练习2025-2026学年人教版英语七年级下册

该初中英语知识清单聚焦Unit 8 Section A (4a-4c)，系统梳理现在完成时中for+时间段、since+时间点/从句的用法及do volunteer work等8个核心短语。以课本原句为依托，通过短语学习搭建基础，衔接语法精练（单句填空、短文综合填空），最终延伸至口语输出，形成“短语积累—语法应用—语言表达”的递进式学习支架。 知识链路逻辑严谨，从短语语境理解到语法规则巩固再到综合语言运用，层层递进。习题设计涵盖语境填空、汉译英等多元形式，强化语言能力；通过for与since的对比练习培养思维品质；口语任务鼓励主动表达，提升学习能力，体现“学练结合、学以致用”的学科特色学习方法。

Unit 8 Section A (4a-4c) 同步短语与语法练习 短语 & 课本原句 a. 语境填空 (Cloze) b. 汉译英 (Translation) 1. for + 时间段 原句：But one of my friends has volunteered here for a long time. He has done volunteer work ____ five months. 我的一位朋友已经在这里做志愿很久了。 _______________________________ 2. since + 时间点/从句 原句：She has been a volunteer at a nursing home since last August. She has worked here ____ last August. 自从去年八月起她就在养老院做志愿者。 _______________________________ 3. do volunteer work 原句：Has she ever done volunteer work? Many students ____ ____ ____ on holiday. 她曾经做过志愿工作吗？ _______________________________ 4. work as a volunteer 原句：How long has he worked as a volunteer​ at the museum? He ____ ____ ____ a volunteer in the shelter. 他在博物馆做志愿者多久了？ _______________________________ 5. help out 原句：Since I started, I’ve helped out​ at over ten different sports events. Volunteers often ____ ____ when matches are held. 从我开始做志愿起，我在十多场赛事中帮忙。 _______________________________ 6. sports events 原句：...I’ve helped out at over ten different sports events. Lots of volunteers serve in all kinds of ____ ____ every year. 我在十余场不同的体育赛事中帮忙。 _______________________________ 7. get lost 原句：The stadium was so big that they got lost. Don’t go alone, or you may ____ ____. 体育场太大，他们迷路了。 _______________________________ 8. give directions 原句：I gave them directions​ and they smiled and thanked me warmly. Volunteers ____ ____ for visitors in the stadium. 我给他们指路，他们微笑着向我致谢。 _______________________________ 第二部分：语法精练 课本4b 用所给词的适当形式填空（含 for / since） 1. This college student enjoys volunteering for the army. She ________ (teach) English to the soldiers ________ three years. 2. I ________ (be) a member of the Red Cross for six years. I have made a lot of friends ________ I joined the organization. 3. Mr Wu has taught in a primary school as a volunteer ________ two years now. ________ he started working there, he ________ (help) many students. 4. The organization ________ (train) over 6,000 volunteers ________ it began to offer classes three years ago. 课本4c 短文综合填空（时态综合运用） I love being a volunteer! I ________ (work) with a sports organization for almost three years now. Since I started, I ________ (help) out at over ten different sports events. I ________ (make) many new friends and I ________ even ________ (meet) many famous athletes. For example, I ________ (meet) two national football players from Argentina last month. They were at a stadium for a charity match. The stadium ________ (be) so big that they ________ (get) lost. I gave them directions and they ________ (smile) and ________ (thank) me warmly. I am proud to be a volunteer. 第三部分：口语输出（4d Role-play） 任务： 模仿例句，使用 for 或 since 进行问答。 A: How long have you known your best friend? B: I have known him for five years. / I have known him since 2021. A: How long have you been a volunteer? B: ________________________________________________________ 参考答案 第一部分：重点短语过关 1. for; One of my friends has volunteered here for a long time. 2. since; She has been a volunteer at a nursing home since last August. 3. do volunteer work; Has she ever done volunteer work? 4. works as; How long has he worked as a volunteer at the museum? 5. help out; I have helped out at over ten different sports events since I started volunteering. 6. sports events; I helped out at over ten different sports events. 7. get lost; The stadium was so big that they got lost. 8. give directions; I gave directions to the visitors and they thanked me warmly. 第二部分：语法精练 4b 1. has taught; for 2. have been; since 3. for; Since; has helped 4. has trained; since 4c have worked; have helped; have made; have; met; met; was; got; smiled; thanked 第三部分：口语输出（参考） • I have been a volunteer for two years. • I have been a volunteer since 2024. 学科网（北京）股份有限公司 $