Unit 3 Healthy Lifestyle-2026-2027学年高中英语词汇精讲精练必修第三册（沪外版）

Unit 3 Healthy Lifestyle 词汇精讲精练 核心词汇概览： charge beverage grain protein nutrient fat-free soda source extra calorie routine trash rate jog;basis;fitness app download; smartphone device track challenge charity infection moody irritable motivate等 词汇精讲 序号 单词/短语 词汇讲解 charge 释义：n主管；掌管：照管；职责；责任v.收费；指控；充电 /tfa:d3/ 词汇变形：charged(adj.充满紧张气氛的；带电的) 搭配：in charge of负责；掌管（主动）；in the charge of由…负 责（被动）；take charge of接管；负责；charge sb.with(doing)sth 控告某人（做）某事；charge(money)for sth.为某物收费：free of charge免费 易混辨析：in charge of与in the charge of:前者主语是人，如“He is in charge of the project..”;后者主语是物，如“The project is in the charge ofhim." 例句：The nurse was left in charge of the children 护士被留下来照看孩子们。 How much do you charge for a haircut? 你剪头发收费多少？ 2 extra 释义：adj.额外的：外加的；附加的adv.额外；另外 /'ekstra/ 词汇变形：无常见变形，但可用作名词（如：extras额外的东西) 搭配：extra money/me/effort额外的钱/时间/努力；extra charge 额外费用；extra work额外工作；extra large特大号（服装） 易混辨析：extra强调“在正常数量或范围之外的增加”： additional更正式，常指补充的、附加的：spare指“多余的、备用 的”。 例句：You can pay extra for a better seat. 你可以额外付费获得更好的座位。 She brought an extra pair of shoes 她多带了一双鞋。 3 calorie 释义：n.大卡；卡路里（测量食物热量单位） /'kaelani/ 词汇变形：caloric(adj.热量的)（较少用） 搭配：low-calorie低热量的：high-calorie高热量的：burn calories 燃烧卡路里；calorie intake卡路里摄入量 注意：该词常与energy(能量)相关联，但calorie是具体单位。 例句：This drink contains fewer calories. 这种饮料热量较低。 Jogging helps to burn calories quickly. 慢跑有助于快速燃烧卡路里。 routine 释义：adj.日常的：平常的；例行公事的n.常规；例行公事 /ru:'ti:n/ 词汇变形：routinely(adv.例行公事地：常规地) 搭配：daily routine日常事务；outine work例行工作；break the routine打破常规；routine check/inspection例行检查 易混辨析：routine强调按计划、习惯重复的事，带中性或略贬（枯 燥)；regular强调规律、定期，更中性。 例句：It's part of my morning routine to drink a gla.ss of water. 我早晨的例行事务之一就是喝一杯水。 The doctor performed a routine examination. 医生进行了一次例行检查。 rate 释义：n.比率；率；速度：价格v.估价：评价 /reIt/ 词汇变形：rating(n.评级；收视率) 搭配：at a rate of..以…的速度/比率；birth/death rate出生/死亡 率；interest rate利率；rate.as.把…评为…；first-rate一流的 易混辨析：rate侧重于速率或比率；speed侧重于速度的快慢； percentage侧重百分比。 例句：The heart beats at a rate of72 times per minute. 心脏以每分钟72次的速度跳动。 This restaurant is rated as one of the best. 这家餐厅被评为最好的餐厅之一。 6 jog 释义：v.慢跑（尤指为锻炼)n.慢跑 /d3Dg/ 词汇变形：jogger(m.慢跑者)；jogging(m.慢跑运动) 搭配：go jogging去慢跑：jog along/dowm沿着…慢跑；jog one''s memory唤起某人的记忆（固定搭配） 易混辨析：jog慢速有氧跑；m泛指跑步，速度可快可慢；sprint 冲刺跑。 例句：My father jogs in the park every morning. 我父亲每天早上在公园慢跑。 She goes jogging to keep fit. 她为了保持健康而去慢跑。 basis 释义：n.基准；准则；方式；基础 /'beisIs/ 词汇变形：base(v.m.基础；基地)；basic(adj.基本的)；basically (adv.基本上) 搭配：on a daily/regular basis每天/定期地；on the basis of在… 基础上；根据；provide a basis for为…提供基础 注意：复数形式为bases/besi:z/。 易混辨析：basis常用作比喻意义（理论基础等)；foundation更强 调坚固的、实体的基础： 例句：We meet on a weekly basis. 我们每周会面一次。 The theory is based on a solid basis. 这个理论建立在坚实的基础上。 8 track 释义：n.路径；路线：轨道；跑道v.跟踪；追踪 /traek/ 词汇变形：tracker.追踪者)；tracking.跟踪) 搭配：keep track of记录；了解…的动态；lose track of失去… 的线索：不了解；track down追踪到；追查到：on track在轨道上； 进展顺利 易混辨析：rack侧重追踪移动的人或物，或指路径；trace更侧重 追溯来源或细微线索。 例句：It's hard to keep track of all the changes. 很难了解所有的变化。 The police tracked the thief down. 警察追踪到了那个小偷。 9 challenge 释义：n.挑战；艰巨任务v,挑战；质疑 /'tfaelmd3/ 词汇变形：challenging(adj.有挑战性的)；challenger(n.挑战者) 搭配：face a challenge面对挑战：take up a challenge接受挑战； challenge sb.to do sth.挑战某人做某事；challenge one''s view对某 人的观点提出质疑 易混辨析：challenge强调需要努力克服的任务；difficulty泛指困 难，较为中性。 例句：Climbing the mountain was a real challenge. 爬那座山是一个真正的挑战。 He challenged me to a race 他向我挑战赛跑。 10 source 释义：n来源；出处；源头 /0s/ 词汇变形：无常见变形 搭配：source of..…的来源；reliable source可靠来源；the source of the river河流源头；source code源代码（计算机） 易混辨析：source指事物的源头或出处；resource指资源（人力、 物力等)；origin强调起源、开端，常指时间或空间上的起点。 例句：Milk is a good source of calcium, 牛奶是钙的良好来源。 We need to find the source of the problem. 我们需要找到问题的根源。 motivate 释义：v推动…甘愿苦干；激励：激发 /'mautrveit/ 词汇变形：motivation(n.动力；动机)；motivated(adj.有动力的)； motivating(adj.激励人的) 搭配：motivate sb.to do sth.激励某人做某事；be motivated by 被…所激励/驱使：highly motivated积极性高的 易混辨析：motivate指激发内在动力；encourage指给予支持或希 望；inspire指通过榜样或灵感激发。 例句：A good teacher can motivate students to learn. 好老师能激励学生去学习。 He was motivated by a desire for success. 他被对成功的渴望所驱使。 二、专项训练 (一)单句填空（在空白处填入1个适当的单词或括号内单词的正确形式，共12小题） 1.The manager left the office,and I was left in of the team 2.She always drinks coffee with sugar,which makes it sweeter than usual.(extra) 3.To lose weight,you need to burn more than you take in.(calorie) 4.Making your bed every morning is a simple daily (routine) 5.The population is growing at a rapid of about 2%per year. 6.He usually goes in the park before breakfast.(jog) 7.We have to make a decision the basis of the facts we have 8.The police managed to down the stolen car using GPS 9.Facing a new he felt both nervous and excited. 10.Newspapers are a major of information for many people. 11.What you to work so hard?(motivate) 12.The teacher asked us to keep of our daily reading progress.(track) (二)单句表达（根据汉语提示，用本单元核心词汇/短语完成句子，共10小题） 1.谁负责这次学校旅行？ Who is the school trip? 2如果你需要额外的帮助，请随时告诉我。 Ifyou need help,please let me know. 3慢跑是一种很好的燃烧卡路里的方式。 Jogging is a good way to 4这位医生每天的例行工作包括检查病人。 The doctor's daily includes examining patients 5.你的心脏每分钟跳动多少次？ How many times does your heart beat of 72 per minute? 6他基于实验结果提出了自己的理论。 He proposed his theory of the experimental results 7警察设法追踪到了嫌疑人的位置。 The police managed to the suspect's location. 8接受这个挑战，你可能会学到很多东西。 this challenge,and you may learn a lot. 9蔬菜是维生素的重要来源。 Vegetables are an important vitamins. 10.是什么激励他每天坚持锻炼？ What him exercise every day? (三)短文填空（阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形 式，共15小题) Nowadays,more and more people are paying attention to their health.Many of them (jog)every morning to keep fit.This simple 2 (routine)can help 3 (burn)calories and improve heart 4. (rate).However,for those who findjogging boring,there are other 5. (challenge)such as cycling or swimming.The key to a healthy lifestyle is to find a 6. (motivate)that works for you.Some people are 7. (motivate)by the desire to look good,while others are inspired by the need to stay energetic.8. the basis of scientific research,regular exercise can reduce the risk of infections and 9. (moody)feelings.Besides exercise,diet also plays an important role.Milk is a great 10. (source)ofprotein and calcium.If you want to lose weight,you should control your 11 (calorie) intake and avoid 12. (extra)sugar.Many people now use fitness apps to 13. (track)their daily activities.These apps allow users 14. (download)data about their steps and heart rate.In short,maintaining a healthy body requires us to take 15. (charge)of our own habits.Remember,every small effort counts! 三、参考答案 (一)单句填空 1.charge 2.extra 3.calories ;4.routine 5.rate 6jogging i 7.on 8.track ,9.challenge 10.source 11.motivates 12.track (二)单句表达 1.in charge of 2.extra 3.burn calories 4.routine 5.at,rate 6.on the basis 7.track down 8.Take up 9.source of;10.motivates;to (三)短文填空 1jog 2.routine ;3.burn 4.rate 5.challenges 6.motivation 7.motivated j8.On; 9.moody 10.source 11.calorie 12.extra 13.track 14.to download 15.charge