Unit 2《A green life》预习（讲义）-2026-2027学年译林版（三起）英语五年级上册

2026暑假外研版小学英语五年级上册Unit 2《A green life》预习专项 一、知识点梳理 1. 课文单词（单词、音标、词性翻译、知识点） 单词 音标 词性&翻译 知识点 green /ɡriːn/ adj. 绿色的；环保的；n. 绿色 作形容词表“环保的”是单元核心义；固定搭配：a green life（环保生活）、green food（绿色食品） life /laɪf/ n. 生活；生命 复数形式：lives；固定搭配：a green life（环保生活）、daily life（日常生活） save /seɪv/ v. 节省；拯救；储蓄 过去式：saved；固定搭配：save water（节约用水）、save energy（节约能源）、save the earth（拯救地球） water /ˈwɔːtə(r)/ n. 水；v. 浇水 不可数名词；固定搭配：save water（节约用水）、drink water（喝水）、water flowers（浇花） energy /ˈenədʒi/ n. 能源；能量 不可数名词；固定搭配：save energy（节约能源）、use energy（使用能源） electricity /ɪˌlekˈtrɪsəti/ n. 电；电力 不可数名词；固定搭配：save electricity（节约用电）、use electricity（用电） paper /ˈpeɪpə(r)/ n. 纸；纸张；v. 用纸糊 不可数名词；固定搭配：save paper（节约用纸）、a piece of paper（一张纸） tree /triː/ n. 树；树木 复数形式：trees；固定搭配：plant trees（植树）、cut down trees（砍树） plant /plɑːnt/ v. 种植；n. 植物 过去式：planted；固定搭配：plant trees（植树）、plant flowers（种花） recycle /ˌriːˈsaɪkl/ v. 回收利用；循环使用 过去式：recycled；固定搭配：recycle paper（回收纸张）、recycle plastic（回收塑料） plastic /ˈplæstɪk/ adj. 塑料的；n. 塑料 固定搭配：plastic bags（塑料袋）、plastic bottles（塑料瓶） bag /bæɡ/ n. 包；袋子 复数形式：bags；固定搭配：plastic bags（塑料袋）、paper bags（纸袋） bottle /ˈbɒtl/ n. 瓶子 复数形式：bottles；固定搭配：plastic bottles（塑料瓶）、a bottle of（一瓶……） rubbish /ˈrʌbɪʃ/ n. 垃圾；废弃物 不可数名词；固定搭配：throw rubbish（扔垃圾）、pick up rubbish（捡垃圾） throw /θrəʊ/ v. 扔；投掷 过去式：threw；固定搭配：throw rubbish（扔垃圾）、throw away（扔掉） pick /pɪk/ v. 捡；拾；采摘 过去式：picked；固定搭配：pick up（捡起；拾起）、pick flowers（摘花） up /ʌp/ adv. 向上；prep. 沿着……向上 固定搭配：pick up（捡起；拾起）、get up（起床） earth /ɜːθ/ n. 地球；泥土 通常与定冠词the连用；固定搭配：save the earth（拯救地球）、on the earth（在地球上） pollute /pəˈluːt/ v. 污染；弄脏 过去式：polluted；派生词：pollution（n. 污染）；固定搭配：pollute the air（污染空气）、pollute the water（污染水） clean /kliːn/ adj. 干净的；v. 打扫 比较级：cleaner；最高级：cleanest；固定搭配：clean the room（打扫房间）、keep clean（保持干净） 2. 短语和固定搭配 1. a green life — 环保生活 2. green food — 绿色食品 3. save water — 节约用水 4. save energy — 节约能源 5. save electricity — 节约用电 6. save paper — 节约用纸 7. save the earth — 拯救地球 8. plant trees — 植树 9. plant flowers — 种花 10. recycle paper — 回收纸张 11. recycle plastic — 回收塑料 12. plastic bags — 塑料袋 13. plastic bottles — 塑料瓶 14. paper bags — 纸袋 15. throw rubbish — 扔垃圾 16. throw away — 扔掉 17. pick up — 捡起；拾起 18. pick flowers — 摘花 19. on the earth — 在地球上 20. pollute the air — 污染空气 21. pollute the water — 污染水 22. keep clean — 保持干净 23. a piece of paper — 一张纸 24. a bottle of — 一瓶…… 3. 单元重难点  重点：掌握核心单词的发音、词性及变形（如life-lives、save-saved）；掌握描述环保行为的固定搭配；理解并运用一般现在时的陈述句、祈使句表达环保建议，能使用“We should...”“Don't...”的结构提出环保要求。  难点：区分“save”在不同语境中的含义（节省/拯救/储蓄）；正确运用不可数名词（water、energy、electricity等）的量化表达；掌握“pick up”等短语动词的用法。 二、习题闯关（共50题，100分） 1. 根据首字母提示或中文提示填写单词（10题，每题2分，共20分） 1. We should live a g______（环保的）life to protect the earth. 2. It's important to s______（节省）water in our daily life. 3. We should plant more t______（树）to keep the air clean. 4. Don't use too many p______（塑料的）bags, they are bad for the environment. 5. We should r______（回收利用）paper to save trees. 6. Don't t______（扔）rubbish everywhere, it will pollute the environment. 7. Please p______（捡）up the rubbish on the floor. 8. We should save e______（能源）to reduce pollution. 9. The e______（地球）is our home, we should protect it. 10. We should keep our classroom c______（干净的）every day. 2. 课文中英互译（各10题，共20题，每题2分，共40分） 汉译英 1. 环保生活 _____________________ 2. 绿色食品 _____________________ 3. 节约用水 _____________________ 4. 节约能源 _____________________ 5. 节约用电 _____________________ 6. 节约用纸 _____________________ 7. 拯救地球 _____________________ 8. 植树 _____________________ 9. 回收纸张 _____________________ 10. 塑料袋 _____________________ 英译汉 1. a green life _____________________ 2. green food _____________________ 3. save water _____________________ 4. save energy _____________________ 5. save electricity _____________________ 6. save paper _____________________ 7. save the earth _____________________ 8. plant trees _____________________ 9. recycle paper _____________________ 10. plastic bags _____________________ 3. 完型填空（10题，每题2分，共20分） 请阅读下面短文，从每题所给的选项中选出最佳答案。 A Green Life Everyone should live a green life to protect the earth. There are many things we can do. First, we should save 1. ______. We can turn off the tap when we don't use it. We can also collect rainwater to water flowers. Second, we should save 2. ______. We can turn off the lights when we leave the room. We can also use energy-saving bulbs. Third, we should save 3. ______. We can write on both sides of the paper. We can also 4. ______ paper instead of throwing it away. Fourth, we should plant more 5. ______. Trees can help clean the air. We can plant trees in spring every year. Fifth, we should reduce the use of 6. ______. We can use cloth bags instead of plastic bags when we go shopping. We can also use glass bottles instead of plastic bottles. Sixth, we shouldn't 7. ______ rubbish everywhere. We should put rubbish into dustbins. We can also 8. ______ up rubbish on the ground. If everyone does these things, our 9. ______ will be cleaner and greener. Let's start to live a 10. ______ life from now on. ( )1. A. water B. energy C. paper ( )2. A. water B. electricity C. paper ( )3. A. water B. energy C. paper ( )4. A. recycle B. throw C. pick ( )5. A. flowers B. trees C. grass ( )6. A. plastic B. paper C. glass ( )7. A. pick B. throw C. collect ( )8. A. pick B. throw C. turn ( )9. A. school B. home C. earth ( )10. A. green B. dirty C. noisy 4. 连词成句（5题，每题2分，共10分） 1. we, should, live, a, green, life (.) 作答线：___________________________________________________________ 2. save, we, should, water, every, day (.) 作答线：___________________________________________________________ 3. don't, use, too, many, plastic, bags (.) 作答线：___________________________________________________________ 4. we, should, plant, more, trees (.) 作答线：___________________________________________________________ 5. pick, please, up, the, rubbish (.) 作答线：___________________________________________________________ 5. 句型转换（5题，每题2分，共10分） 1. We should save water.（改为一般疑问句） 作答线：___________________________________________________________ 2. We use plastic bags.（改为否定句） 作答线：___________________________________________________________ 3. We plant trees in spring.（对划线部分提问） 作答线：___________________________________________________________ 4. We can turn off the lights to save electricity.（对划线部分提问） 作答线：___________________________________________________________ 5. The earth is our home.（改为感叹句） 作答线：___________________________________________________________ 参考答案 1. 根据首字母提示或中文提示填写单词 1. green 2. save 3. trees 4. plastic 5. recycle 6. throw 7. pick 8. energy 9. earth 10. clean 2. 课文中英互译 汉译英 1. a green life 2. green food 3. save water 4. save energy 5. save electricity 6. save paper 7. save the earth 8. plant trees 9. recycle paper 10. plastic bags 英译汉 1. 环保生活 2. 绿色食品 3. 节约用水 4. 节约能源 5. 节约用电 6. 节约用纸 7. 拯救地球 8. 植树 9. 回收纸张 10. 塑料袋 3. 完型填空 1. A 2. B 3. C 4. A 5. B 6. A 7. B 8. A 9. C 10. A 4. 连词成句 1. We should live a green life. 2. We should save water every day. 3. Don't use too many plastic bags. 4. We should plant more trees. 5. Please pick up the rubbish. 5. 句型转换 1. Should we save water? 2. We don't use plastic bags. 3. When do we plant trees? 4. What can we do to save electricity? 5. What a home the earth is! / How important the earth is as our home! 学科网（北京）股份有限公司 $