Unit 3 Keep Fit 寒假预习讲义-2025-2026学年人教版七年级下册

人教版七年级下册 Unit 3 Keep Fit 寒假预习讲义 Unit 3 核心词汇表 序号 单词 / 短语 音标 词性 中文释义 拓展延伸 1 fit [fɪt] adj./v. 健康的；适合 搭配：keep fit 保持健康、be fit for 适合……；同义词：healthy adj. 健康的；例句：Jogging helps us keep fit. 2 healthy [ˈhelθi] adj. 健康的 搭配：a healthy diet 健康饮食、be in good health 身体健康；派生词：health n. 健康；反义词：unhealthy adj. 不健康的 3 energy [ˈenədʒi] n. 精力；能量 搭配：full of energy 精力充沛、save energy 节省能量；派生词：energetic adj. 精力充沛的；例句：Food gives our body energy. 4 exercise [ˈeksəsaɪz] v./n. 锻炼；运动 搭配：do exercise 做运动、morning exercise 早操；区别：exercise（泛指运动）、sport（特指球类等有规则运动） 5 jog [dʒɒɡ] v. 慢跑 搭配：jog in the park 在公园慢跑；频度表达：jog three times a week 一周慢跑三次；派生词：jogger n. 慢跑者 6 badminton [ˈbædmɪntən] n. 羽毛球运动 搭配：play badminton 打羽毛球、badminton racket 羽毛球拍；例句：We often play badminton after school. 7 volleyball [ˈvɒlibɔːl] n. 排球运动 搭配：play volleyball 打排球、volleyball court 排球场；拓展：team sport 团队运动 8 rope [rəʊp] n. 绳子；绳 固定短语：jump rope 跳绳（运动）；搭配：a piece of rope 一根绳子；例句：Jump rope is a cheap and easy exercise. 9 belong [bɪˈlɒŋ] v. 应在；属于 固定搭配：belong to sb. 属于某人（无被动语态）；例句：This baseball glove must belong to Tom. 10 mine [maɪn] pron. 我的（所有物） 对应形容词性物主代词：my；用法：单独使用，后不接名词；例句：The blue T-shirt is mine. 11 hers [hɜːz] pron. 她的（所有物） 对应形容词性物主代词：her；拓展：theirs（他们的）、yours（你的 / 你们的） 12 always [ˈɔːlweɪz] adv. 总是；一直 频度排序（100%）；位置：be 动词 / 助动词后，实义动词前；例句：I always eat breakfast before going to school. 13 usually [ˈjuːʒuəli] adv. 通常；经常 频度排序（90%）；搭配：usually do sport 通常做运动；反义频度词：seldom 很少 14 often [ˈɒfn] adv. 常常；经常 频度排序（70%）；位置：可置于句中或句末；例句：She often plays volleyball on weekends. 15 sometimes [ˈsʌmtaɪmz] adv. 有时；不时 频度排序（40%）；位置：可置于句首、句中或句末；例句：Sometimes we jog in the evening. 16 hardly ever [ˈhɑːdli ˈevə(r)] 短语 几乎不；很少 频度排序（5%）；用法：后接动词原形；例句：He hardly ever eats junk food. 17 never [ˈnevə(r)] adv. 从不；决不 频度排序（0%）；用于否定句，加强语气；例句：I never stay up late on weekdays. 18 once [wʌns] adv. 一次；曾经 搭配：once a week 一周一次；拓展：twice 两次、three times 三次 19 tired [ˈtaɪəd] adj. 累的；疲倦的 搭配：feel tired 感到疲倦、be tired of 厌倦……；派生词：tiredly adv. 疲倦地；反义词：energetic adj. 精力充沛的 20 practice [ˈpræktɪs] n./v. 练习；实践 搭配：practice doing sth. 练习做某事、spoken practice 口语练习；派生词：practise v. 练习（英式拼写） 21 perfect [ˈpɜːfɪkt] adj. 完美的；极好的 搭配：a perfect score 满分、perfect for doing sth. 非常适合做某事；派生词：perfectly adv. 完美地 22 few [fjuː] adj. 很少的；几乎没有的 搭配：few people 很少人（表否定）；区别：a few 少数几个（表肯定）；例句：Few students dislike doing sport. 23 full of [fʊl ɒv] 短语 充满；有许多 搭配：full of energy 精力充沛、full of joy 充满欢乐；例句：Children are always full of energy. 24 work out [wɜːk aʊt] 短语 锻炼；健身 同义短语：do exercise；搭配：work out at the gym 在健身房锻炼；例句：He works out every morning. 25 keep...clean [kiːp kliːn] 短语 保持…… 干净 拓展：keep...healthy 保持…… 健康、keep...safe 保持…… 安全；例句：We should keep our body healthy. 26 junk food [dʒʌŋk fuːd] 短语 垃圾食品 反义短语：healthy food 健康食品；例句：Eating too much junk food is bad for health. 27 balanced diet [ˈbælənst ˈdaɪət] 短语 均衡饮食 搭配：have a balanced diet 保持均衡饮食；例句：A balanced diet helps us keep fit. 28 stay up late [steɪ ʌp leɪt] 短语 熬夜 反义短语：go to bed early 早睡；例句：Don’t stay up late if you want to feel energetic. 29 take a walk [teɪk ə wɔːk] 短语 散步 同义短语：have a walk、go for a walk；搭配：take a walk after dinner 饭后散步 30 mental health [ˈmentl helθ] 短语 心理健康 对应：physical health 身体健康；例句：Mental health is as important as physical health. 31 team spirit [tiːm ˈspɪrɪt] 短语 团队精神 搭配：build team spirit 培养团队精神；例句：Playing team sports helps build team spirit. 练习部分 Part 1 词形转换 1. fit adj. → n. ________（健康）；v. 过去式 ________（适合） 2. healthy adj. → n. ________（健康）；adj. ________（不健康的） 3. energy n. → adj. ________（精力充沛的） 4. practice n. → v. ________（练习，英式拼写） 5. mine pron. → adj. ________（我的） 6. hers pron. → adj. ________（她的） 7. tired adj. → adv. ________（疲倦地）；adj. ________（令人疲倦的） 8. perfect adj. → adv. ________（完美地） 9. few adj. → 表肯定 ________（少数几个） 10. work v. → 短语 ________（锻炼，健身） Part 2 用词汇的正确形式填空 1. We should do more exercise to keep ________ (health) and strong. 2. My brother ________ (jog) in the park near our home every morning. 3. This badminton racket doesn’t belong to me — is it ________ (she)? 4. Tom is full of ________ (energetic) because he eats well and exercises often. 5. How often do you ________ (practice) playing volleyball with your classmates? 6. She ________ (hard) ever eats junk food because she knows it’s unhealthy. 7. ________ (sometimes) we go for a walk after dinner to relax. 8. The red T-shirt is not ________ (I); mine is blue. 9. Eating a ________ (balance) diet is important for keeping fit. 10. Don’t stay up late, or you will feel ________ (tire) in class tomorrow. 11. They often play badminton to build ________ (team) spirit. 12. My sister ________ (usual) does morning exercise at 7 o’clock. 13. He spends 30 minutes ________ (work) out at the gym every weekend. 14. Few students ________ (dislike) doing sport because it’s fun. 15. This pair of sports shoes ________ (belong) to my brother. 16. Keeping ________ (mentally) health is as important as physical health. 17. She practices ________ (jump) rope every evening to keep fit. 18. My parents ________ (always) tell me to eat more vegetables. 19. The boy never ________ (stay) up late on weekdays. 20. It’s ________ (perfectly) for us to play team sports after school. Part 3 语法填空 Keeping fit is important for everyone. It helps us stay healthy and full of ________ (energy). There are many ways to keep fit. Some people like to jog, while others enjoy ________ (play) badminton or volleyball.I ________ (usual) do sport three times a week. On Mondays and Wednesdays, I jog in the park for 30 minutes. On weekends, I play volleyball with my friends. Playing volleyball not only makes me strong but also builds ________ (team) spirit.My sister’s favorite sport is jump rope. She ________ (hardly) ever misses a day of practice. She says it’s easy and fun. We both have a balanced diet — we eat lots of fruits and vegetables and little junk food.________ (keep) fit is not difficult. The key is to exercise regularly and eat healthily. How often ________ (do) you do sport? If you ________ (not) have a habit of exercising, why not start today? Remember: A healthy lifestyle makes us ________ (feel) good every day. Let’s keep fit together and enjoy a happy life! 【答案】 Part 1 词形转换答案 1.fitness；fitted 2. health；unhealthy 3. energetic 4. practise 5. my her 7. tiredly；tiring 8. perfectly 9. a few 10. work out Part 2 用词汇的正确形式填空答案与解析 1. healthy （keep + 形容词，“保持健康”） 2. jogs （主语为第三人称单数，一般现在时谓语动词用三单形式） 3. hers （名词性物主代词，代指 “她的球拍”） 4. energy （形容词性物主代词 our 后接名词） 5. practice （情态动词 do 后接动词原形） 6. hardly （hardly ever 固定短语，“几乎不”） 7. Sometimes （频度副词置于句首，首字母大写） 8. mine （名词性物主代词，代指 “我的 T 恤”） 9. balanced （形容词修饰名词 diet，“均衡的饮食”） 10. tired （feel + 形容词，“感到疲倦的”） 11. team （名词作定语，team spirit 固定短语 “团队精神”） 12. usually （频度副词，“通常”，置于实义动词前） 13. working （spend time doing sth. 固定搭配，“花费时间做某事”） 14. dislike （主语为复数，一般现在时谓语动词用原形） 15. belongs （主语为单数，一般现在时谓语动词用三单形式） 16. mental （形容词修饰名词 health，“心理健康”） 17. jumping （practice doing sth. 固定搭配，“练习做某事”） 18. always （频度副词置于实义动词前，“总是”） 19. stays （主语为第三人称单数，一般现在时谓语动词用三单形式） 20. perfect （be 动词后接形容词，“非常适合的”） 21. Part 3 语法填空答案与解析 22. energy （介词 of 后接名词，“充满精力”） 23. playing （enjoy doing sth. 固定搭配，“喜欢做某事”） 24. usually （频度副词置于实义动词前，“通常”） 25. team （名词作定语，team spirit 固定短语 “团队精神”） 26. hardly （hardly ever 固定短语，“几乎不”） 27. Keeping （动名词作主语，“保持健康”） 28. do （主语为 you，一般现在时助动词用 do） 29. don’t （否定句，主语为 you，助动词用 don’t） 30. feel （make sb. do sth. 固定搭配，“让某人做某事”，接动词原形） 核心语法点拨 1.本单元核心语法为频度副词、物主代词和一般现在时，辅助语法为动词固定搭配： @频度副词： 频率排序（从高到低）：always（100%）＞usually（90%）＞often（70%）＞sometimes（40%）＞hardly ever（5%）＞never（0%）。 位置规则：be 动词 / 助动词后，实义动词前；sometimes 可置于句首、句中或句末。 提问方式：用 how often（多久一次），回答用频度副词或短语（once a week、three times a month）。 @物主代词： 形容词性物主代词（my、her、their）：后接名词，作定语。例：my T-shirt 我的 T 恤。 名词性物主代词（mine、hers、theirs）：单独使用，相当于 “形容词性物主代词 + 名词”。例：The racket is mine.（= my racket）。 @一般现在时： 用于表达日常运动习惯（I usually jog in the morning）和健康常识（Fruits keep us healthy）。 动词变化：主语为第三人称单数时，谓语动词加 - s/-es（jogs、plays、belongs）。 动词固定搭配： 后接 doing sth.：practice doing、enjoy doing、spend time doing。 后接动词原形：make sb. do、let sb. do。 其他重点搭配：keep fit、have a balanced diet、stay up late、work out。 学科网（北京）股份有限公司 $