Unit 5 Lesson 5“Refrigerator timeline”课后练习题2025-2026学年冀教版英语八年级下册

**基本信息** 初中英语冀教版八年级下Unit 5 Lesson 5同步练，新授课场景。分层设计从基础词汇到综合句子，梯度衔接紧密，助力语言能力与学习能力培养。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础认知层|核心词汇及词形变化|核心单词直接默写（如“refrigerator”“preserve”），词形变化强化词性转换（如freeze→froze/frozen）| |应用巩固层|语境词汇运用与语法应用|根据首字母填单词结合课文时间线（如“icehouses”“artificial”），用所给词适当形式填空训练时态（如used, designed）| |综合拓展层|句子结构与综合表达|完成句子整合语法与主题（如“设计第一台制冷机”译为“design the first refrigeration machine”），强化语言输出能力|

冀教版（新）八年级下英语Unit 5 Lesson 5“Refrigerator timeline” 课后练习题 建议完成时间：30分钟 一、核心单词（根据汉语或首字母提示写出单词） 1. （使）冻结；结冰 (v.) ________ 2. 冰箱 (n.) ________ 3. 能量；能源 (n.) ________ 4. 皇帝 (n.) ________ 5. 保存；保鲜 (v.) ________ 6. 人工的；人造的 (adj.) ________ 7. 制冷；冷藏 (n.) ________ 8. 大规模生产 (短语) ________ 9. 隔间；分隔间 (n.) ________ 10. 分配器；饮水机 (n.) ________ 11. 节能的 (adj.) ________ 12. 冰库 (n.) ________ 13. 冰盒；冰箱前身 (n.) ________ 14. 奢侈品 (n.) ________ 15. 运行成本 (短语) _______ 二、词形变化 1. freeze (过去式) ____ / (过去分词) _____ 2. refrigerate (名词，冰箱) ________ 3. energetic (名词，能量) ________ 4. emperor (阴性形式，女皇) ________ 5. preserve (名词，保存；保护区) ________ 6. artificial (副词) ________ 7. refrigerate (名词，制冷) ________ 8. produce (名词，生产) ________ 9. compartment (动词，分隔) ________ 10. dispense (名词，分配器) _______ 三、核心短语（写出下列短语的英文） 1. 用冰或雪保存食物 ________ 2. 全年保存食物 ________ 3. 进行人工制冷实验 ________ 4. 设计第一台制冷机 ________ 5. 冰盒变得流行 ________ 6. 家用 ________ 7. 发明第一台家用电动冰箱 ________ 8. 开始大规模生产 ________ 9. 冷冻室被添加 ________ 10. 饮水机被添加 ________ 11. 变得更加节能 ________ 12. 豪华物品 ________ 13. 运行成本 ________ 14. 能源效率高的冰箱 ________ 15. 成为新常态 ________ 四、根据提示完成单词（根据句意和首字母或汉语提示补全单词） 1. Ancient China used ice or snow to p________ food. 2. In the 1600s, i________ were used to preserve food all year round. 3. William Cullen did an experiment on a________ refrigeration. 4. Oliver Evans d________ the first refrigeration machine. 5. In the 1890s, i________ became popular for home use. 6. Fred W. Wolf invented the first home electric r________. 7. In 1918, m________ p________ of home refrigerators began. 8. In the 1940s, freezer c________ were added. 9. In the 1980s, water d________ were added. 10. In 1996, refrigerators became more e________-s________. 11. A refrigerator was considered a l________ item in the early days. 12. The r________ c________ of a refrigerator was so high. 13. Energy-e________ refrigerators became the new normal in the 1990s. 五、用所给词的适当形式填空 1. Ancient China ________ (use) ice or snow to preserve food. 2. Icehouses were used ________ (preserve) food all year round. 3. William Cullen did an experiment on ________ (artifice) refrigeration. 4. Oliver Evans ________ (design) the first refrigeration machine. 5. Iceboxes ________ (become) popular in the 1890s. 6. Fred W. Wolf ________ (invent) the first home electric refrigerator. 7. Mass production of home refrigerators ________ (begin) in 1918. 8. In the 1920s, refrigerators ________ (become) popular in some countries. 9. Freezer compartments ________ (add) in the 1940s. 10. Refrigerators ________ (become) more energy-saving in 1996. 11. The running cost was so high that no one could ________ (afford) one. 12. Energy-efficient refrigerators had become the new ________ (normal). 六、从方框中选择词并用其适当形式填空 freeze preserve artificial mass production compartment energy-saving 1. Water will ________ at 0 degrees Celsius. 2. Salt can help ________ meat from going bad. 3. This flower is ________; it’s not real. 4. With ________, goods can be made quickly and cheaply. 5. The fridge has a separate ________ for vegetables. 6. This new lamp is very ________. 七、根据汉语意思完成句子（每空一词） 1. 古代中国、希腊和罗马用冰或雪通过冷冻或冷藏来保存食物。 Ancient China, Greece, and Rome used ice or snow to _____ food by ________ or ________ it. 2. 冰窖被用来全年保存食物。 Icehouses were used to ________ food ________ year round. 3. 威廉·卡伦做了人工制冷实验。 William Cullen did an ________ on ________ refrigeration. 4. 奥利弗·埃文斯设计了第一台制冷机。 Oliver Evans ________ the first ________ machine. 5. 冰盒变得流行起来。它们是用于家用的较小的冰窖。 Iceboxes became ________. They were smaller icehouses meant for ________ ________. 6. 弗雷德·W·沃尔夫发明了第一台家用电动冰箱。 Fred W. Wolf ________ the first home ________ refrigerator. 7. 家用冰箱开始大规模生产。 ________ ________ of home refrigerators began. 8. 冰箱在一些国家变得流行起来。 Refrigerators became ________ in some countries. 9. 增加了冷冻室。 Freezer ________ were added. 10. 增加了饮水机。 Water ________ were added. 11. 冰箱变得更加节能。 Refrigerators became more ________-________. 12. 在20世纪90年代，节能冰箱已成为新常态。 Energy-efficient refrigerators had become the new ________. 参考答案 一、核心单词 1. freeze 2. refrigerator 3. energy 4. emperor 5. preserve 6. artificial 7. refrigeration 8. mass production 9. compartment 10. dispenser 11. energy-saving 12. icehouse 13. icebox 14. luxury 15. running cost 二、词形变化 1. froze, frozen 2. refrigerator 3. energy 4. empress 5. preservation 6. artificially 7. refrigeration 8. production 9. compartmentalize 10. dispenser 三、核心短语 1. preserve food by freezing or chilling it 2. preserve food all year round 3. do an experiment on artificial refrigeration 4. design the first refrigeration machine 5. iceboxes became popular 6. for home use 7. invent the first home electric refrigerator 8. mass production began 9. freezer compartments were added 10. water dispensers were added 11. become more energy-saving 12. a luxury item 13. running cost 14. energy-efficient refrigerators 15. become the new normal 四、根据提示完成单词 1. preserve 2. icehouses 3. artificial 4. designed 5. iceboxes 6. refrigerator 7. mass production 8. compartments 9. dispensers 10. energy-saving 11. luxury 12. running cost 13. energy-efficient 五、用所给词的适当形式填空 1. used 2. to preserve 3. artificial 4. designed 5. became 6. invented 7. began 8. became 9. were added 10. became 11. afford 12. normal 六、选词填空 1. freeze 2. preserve 3. artificial 4. mass production 5. compartment 6. energy-saving 七、根据汉语意思完成句子 1. preserve, freezing, chilling 2. preserve, all 3. experiment, artificial 4. designed, refrigeration 5. popular, home use 6. invented, electric 7. Mass production 8. popular 9. compartments 10. dispensers 11. energy-saving 12. normal 学科网（北京）股份有限公司 $