Unit 5 Section B 词汇拓展 记忆版+默写版+同步练习2025-2026学年人教版英语八年级下册

**基本信息** 本练习通过记忆版、默写版、同步练习三阶分层设计，实现从词汇认知到综合应用的知识巩固路径，适配初中英语单元复习需求，助力语言能力与学习能力提升。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |词汇拓展【记忆版】|原词及拓展词的词性、含义与搭配|以表格形式系统呈现常考搭配，强化词汇认知| |词汇拓展【默写版】|词汇变形及反义关系|通过填空形式检验词汇记忆，夯实基础输出能力| |同步练习|词汇应用、语法辨析及短语互译|设置适当形式填空、单项选择等题型，在语境中提升语言运用能力|

Unit 5 Section B 词汇拓展 记忆版+默写版+同步练习 第一部分：词汇拓展【记忆版】 原词 拓展词（词性/含义） 常考搭配/考点 bad/badly​ worst​ (adj./adv. 最糟的) the worst​ day fortune​ unfortunately​ (adv. 不幸地) Fortunately, ... (常考连接副词) safe​ safety​ (n. 安全) in safety​ 处于安全中 thank​ thankful​ (adj. 感激的) be thankful​ for... think​ thinking​ (n. 思考/想法) way of thinking​ hero​ heroes​ (n. 复数) 以o结尾的有生命名词+es firefighter​ firefighters​ (n. 消防员) 修正：原词应为firefighter volunteer​ voluntary​ (adj. 志愿的) voluntary​ work terrible​ terribly​ (adv. 非常/极度) terribly​ cold/sorry sudden​ suddenly​ (adv. 突然地) All of a sudden​ (短语) usual​ usually​ (adv. 通常) as usual​ (像往常一样) luck​ lucky​ (adj. 幸运的) unlucky​ (adj. 不幸的) know​ knowledge​ (n. 知识) gain knowledge​ 第二部分：词汇拓展【默写版】 1. bad/badly → (最高级) __________ 2. fortune → (反义副词) __________ 3. safe → (名词) __________ 4. thank → (形容词) __________ 5. think → (名词) __________ 6. hero → (复数) __________ 7. firefighter → (复数) __________ 8. volunteer → (形容词) __________ 9. terrible → (副词) __________ 10. sudden → (副词) __________ 11. usual → (副词) __________ 12. luck → (形容词) __________；(反义形容词) __________ 13. know → (名词) __________ 第三部分：同步练习 一、用所给单词适当形式填空 1. This is the __________ (bad) storm in ten years. 2. __________ (fortunate), no one was hurt in the fire. 3. The children ran to __________ (safe) when the alarm rang. 4. I am __________ (thank) to the firefighters for saving my cat. 5. Critical __________ (think) is important in emergencies. 6. Doctors and nurses are __________ (hero) in our hearts. 7. The __________ (firefight) saved the old man from the fire. 8. He joined a __________ (volunteer) group to clean the park. 9. The wind blew __________ (terrible) last night. 10. __________ (sudden), the lights went out. 11. He __________ (usual) checks the weather forecast in the morning. 12. It was __________ (luck) that I left my umbrella at home. 13. We gain __________ (know) by reading books. 二、单项选择 ( ) 1. My alarm clock didn't ______ this morning, so I was late. A. go off B. come off C. slow down ( ) 2. ______, a stranger appeared and helped me find the way. A. All of a sudden B. As a result C. Out of breath ( ) 3. I had finished my homework ______ you called me. A. as soon as B. by the time C. while ( ) 4. After running 800 meters, he was completely ______. A. out of breath B. in trouble C. in need ( ) 5. He broke his leg. ______, he couldn't play in the basketball game. A. Fortunately B. Thankfully C. As a result 三、短语英汉互译 1. as soon as _______________ 2. security guard _______________ 3. go off _______________ 4. all of a sudden _______________ 5. by the time _______________ 6. out of breath _______________ 7. as a result _______________ 第四部分：同步练习参考答案 一、用所给单词适当形式填空 1. worst 2. Fortunately (注意大写) 3. safety (run to safety 固定搭配) 4. thankful 5. thinking 6. heroes 7. firefighter 8. voluntary 9. terribly 10. Suddenly (注意大写) 11. usually 12. unlucky 13. knowledge 二、单项选择 1. A (go off 响起) 2. A (All of a sudden 突然) 3. B (by the time + 一般过去时从句，主句用过去完成时 had finished，语法正确) 4. A (out of breath 上气不接下气) 5. C (As a result 因此，表因果) 三、短语互译 1. 一……就…… 2. 保安 3. （闹钟/警报）响铃 4. 突然地 5. 到……为止 6. 喘不上气 7. 结果；因此 学科网（北京）股份有限公司 $