Unit 5 A healthy lifestyle-2026-2027学年七年级英语上册词汇精讲精练（译林版）

Unit 核心词汇概览： health important 词汇精讲 序号 单词/短语 1 health /hel0/ 2 important /Im'po:tnt/ 3 diet /'daret/ 5 A healthy lifestyle 词汇精讲精练 diet home body have a sweet tooth need enough less 词汇讲解 释义：n.健康 词形变化：healthy(adj.健康的)；nhealthy(adj.不健康的)； healthily(adv.健康地) 搭配：in good health身体健康；health problem健康问题；health care保健 词根词缀：-th名词后缀（如strength,length) 例句：Eating vegetables is good for your health, 吃蔬菜对你的健康有好处。 释义：adj.重要的 词形变化：importance(n.重要性)；nimportant(adj.不重要的) 搭配：be important to/for sb.对某人重要；it is important(for sb..) to do sth.(某人)做某事很重要 词根词缀：im-(向内)+port(携带)+-ant(形容词后缀)→ 重要的(“带入”的，即关键的) 例句：It is important to have a balanced diet. 保持均衡饮食很重要。 释义：n.日常饮食；节食v.节食 词形变化：dietary(adj.饮食的)；dieter(n.节食者)；dieting(n.) 4 home /haum/ 5 body /bpdi/ 6 have a sweet toot /hay e swi:ttu:θ/ 7 need /ni:d/ 8 enough /I'nf/ 搭配：a healthy/balanced diet健康/均衡饮食；go on a diet节食 词根词缀：来自希腊语diaita(生活方式) 例句：You should eat a diet rich in fruits.. 你应该吃富含水果的饮食。 释义：n.家adv.回家adj.家庭的 词形变化：homeless(adj.无家可归的)；homework(n.家庭作 业)；homemade(adj.自制的) 搭配：at home在家；go home回家；home cooking家常菜 词根词缀：古英语ham（家) 例句：I feel safe at home. 我在家感到安全。 释义：n.身体 词形变化：bodily(adj.身体的)；bodybuilding(.健美)；body language(n.肢体语言) 搭配：keep one's body healthy保持身体健康；body shape体型 词根词缀：古英语bodig（身体) 例句：Exercise keeps your body strong: 锻炼使你的身体强壮。 释义：喜欢吃甜食（固定短语〉 词形变化：无（注意sweet和tooth可单独变形，但短语整体不 变) 搭配：have a sweet tooth for sth.特别爱吃某甜食 词根词缀：sweet(甜的)+tooth(牙齿)→形象比喻“爱吃甜” 例句：y brother has a sweet tooth,so he loves cake.. 我哥哥爱吃甜食，所以他喜欢蛋糕。 释义：v.需要n.需要；必需（常用复数needs) 词形变化：needs(三单/复数)；needed(过去式/过去分词)： needy(adj.贫困的)》 搭配：need to do sth.需要做某事；in need of需要；meet one's needs满足某人的需要 词根词缀：古英语nad(强迫、需要) 例句：You need enough sleep every night 你每晚需要足够的睡眠。 释义：adj.足够的adv.足够地 词形变化：无（注意用法：enough+名词：形容词/副词+ enough) 搭配：enough time足够的时间；big enough足够大：enough to do 足以做某事 词根词缀：古英语genog（足够) 例句：We don't have enough water. 我们没有足够的水。 less 释义：ad/adv.较少的/较少地n.较少量(little的比较级) /les/ 词形变化：little(原级)；less(比较级)；leat(最高级) 搭配：less than少于；more or less或多或少；less+形容词/副词 (如less important) 词根词缀：古英语1ssa(更少) 例句：You should eat less sugar and drink more water: 你应该少吃糖多喝水。 二、专项训练 (一)单句填空（用所给词的适当形式填空，每空一词） 1.It's (importance)to have a healthy diet. 2.My grandmother is in good (healthy). 3.To keep fit,you need (get)enough sleep. 4.She has a sweet tooth,so she often eats (much)sugar than others. 5.The doctor told him to go on a (dietary). 6.We should take care of our (body)by exercising. 7.I feel (home)when I stay with my family. 8.There is (less)water in the bottle than before. 9.People in needneed our (helpful) 10.Eating too much candy is bad for your (tooth). (二)短文填空（根据上下文及首字母提示，每空一词） A healthy lifestyle is very 1.for everyone.First,we should have a balanced 2. Eat lots of fruits and vegetables,and 3. junk food.Second,we to exercise every day to keep our 5.strong.Third,get 6. sleep -about eight hours a night.If you have a 7. tooth,try to eat less sugar. Remember:your 8. is the most important thing.Stay at 9. when you are tired,and always take care of yourself. (三)短文选词填空（用方框中所给单词或短语的适当形式填空，每个单词限用一次，每 空限填一词，其中有一项为多余) 方框词汇：health,important,diet,home,body,have a sweet tooth,need,enough,less My cousin Tom is a boy who 1..He loves cookies and ice cream.But his mother says he 2. to change his 3. She asks him to eat 4. sweets and more vegetables.Tom also 5. more exercise because his 6. is not strong. He spends too much time at 7. watching TV.It is 8. for him to play outside and get 9. sunlight.I hope Tom can become 10. (四)完成句子（根据汉语意思，用所给单词或短语完成句子，每条横线处限填一个单 词) 1.均衡饮食对我们的健康很重要。 A balanced is very for our health. 2.我妈妈需要每天喝足够的水。 My mother to drink water every day. 3.为了保持身体健康，你应该少吃甜食。 To keep your healthy,you should eat sweet food. 4他特别爱吃甜食，所以总是吃很多巧克力。 He so he always eats a lot of chocolate. 5我们每周需要至少锻炼三次。 We three times a week. 6.在家吃饭比在外面吃饭更健康。 Eating at is unhealthy than eating out. 7这些无家可归的人需要我们的帮助。 These people are in of our help. 8你的身体需要足够的休息。 Your needs sleep. 9吃太多糖对你的牙齿不好。 Eating too much sugar is bad for your 10.少玩游戏，多读书。 Play games and read more books. 三、参考答案 (一)单句填空 1important 2.health 3.to get 4.more 5.diet 6.bodies 7.at home 8.less ,9.help 10.teeth (二)短文填空 1.important 2.diet 3.less 4.need 5.body 6.enough 7.sweet 8.health 9.home (三)短文选词填空 1has a sweet tooth 2.needs 3.diet 4.less 5.needs 6.body 7.home 8.important 9.enough 10.healthy (四)完成句子 1.diet;important 2.needs;enough 3.body;less ;4.has a sweet tooth 5.need;least 6.home;less 7.homeless;need 8.body;enough 9.teeth 10.less