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高中英语辅导网单元学案ⅠWordStudy1.diet:(1)n[c].sortoffoodthatisusuallyeatenbyaperson,community,etc;limitedvarietyoramountoffoodthatapersonisallowedtoeat,e.g.formedicalreasonsorinordertoloseweight.日常饮食；规定食谱（如为治疗疾病或减轻体重）e.g.Abalanceddietisgoodforourhealth.均衡的饮食对我们的健康有好处。Mydaughterdoesn’tlikearichdiet.我女儿不喜欢油腻的饮食。(2)vi.(beallowed)toeatonlysomefoodsoralittlefood,especiallytoloseweight.只（准）吃某类食物或少量食物；（尤指为减轻体重）节食e.g.Iadviseyoutodietandtakemoreexercise.我建议你节食并多锻炼身体。(3)常用短语：beonadiet/goonadiet节食e.g.ThedoctorsaidIshouldbeonadiet.大夫说我应该节食。Shedecidedtogoonalow-fatdietfromthisMonday.她决心从本周一开始进行低脂肪的饮食疗法。(4)辨析：food和diet二者均表示食物;但food是一般用语，指任何可吃的东西，diet通常指维持健康的特定或定量的饮食；diet是可数名词，food是不可数名词，但在强调种类时为可数名词。e.g.ManywesternerslikeChinesefood.许多西方人喜欢中国食物。Daddidn’twantmylittlesistertogoonadietthoughshewasveryheavythen.爸爸不想让我的小妹妹减肥尽管她那时很胖。构词解析：diet:n饮食，日常食物；dieter:n接受食物疗法的人；减肥者；dietary:adj饮食的，规定饮食的高中英语辅导网’teatmuchdinnerbecausesheisonadietnow.________________________________________________2.Thedoctortoldhimtotakeafat-freediet________________________________________________Keyforreference1．她这顿饭没吃多少，因为她现在正在节食。2．大夫让他进行无脂饮食疗法。2.fit:(1).adj.ingoodhealth,especiallybecauseofregularphysicalexercise;suitableorsuitedforsb/sth;goodenoughforsb/sth.健康的；适宜的；合适的e.g.Don’tyoufeelfit?你身体状况不好吗？Thewaterisn’tfittodrink.这水不适合喝。(2).vi,vttobetherightsizeandshapeforsomeoneorsomething;toputasmallpieceofequipmentintoaplace,oranewpartontoamachine,sothatitisreadytobeused合适；安装e.g.Thisjacketfitsherwell.她的夹克非常合身。Shefittedanewlampinherbedroom.她在卧室安装了一盏新灯。(3)常用短语：keepfit保持健康befitfor.../befittodo...适合做......e.g.Mygrandfatherkeepsfitbytakingawalkeveryday.我祖父通过每天散步来保持健康。Whatkindofjobishefitfor?他适合做什么样的工作？(4).词语辨析：fit和suit①fit作动词时，多指大小、形状合适，吻合；suit多指合乎需要，合（某人）之意，或（衣服、型式等）与......相配。②fit作形容词时，可与suitable（合适的）互换，befitfor/todo...=besuitablefor/todo...。高中英语辅导网试试这把钥匙，看看是否合适。（指thekey和thekeyhole是否吻合）I’mafraidthistimedoesn’tsuitme.恐怕这个时间对我来说不合适。构词解析：fit,vtvi合适；adj.合适的；n合身；合身的衣服；fitness,n,适当，适合；健康；unfitadj.不适当的；vt.使不适当PracticeCorrectthemistakesinthefollowingsentences.1.Herjeanssuitalittlebittighter.________2.Thecoloroftheshirtdoesn’tfityou.__________Keyforreference1.suit改成fit，（她的牛仔裤有点紧）2.fit改成suit（这件衬衫的颜色不适合你）3.rare.adj.notoftenhappeningorseen,etc;unusual稀有的；珍贵的rarelyadv,notoften,seldom很少；难得rarely和hardly,never,little,none,nothing等词一样，属于否定意义的词，表否定意义的词或短语置于句首时，后面的句子应该部分倒装，即主语要放在be动词、情态动词、助动词的后面。e.g.Snowisquiterareinmyhometown.在我的故乡下雪是罕见的。Weshouldprotectrareanimals.我们应该保护珍稀动物。Itisrareforhertowearskirts.她很少穿裙子。IrarelywatchTVnow.我现在很少看电视。Heisrarelylate.他很少迟到。Rarelydoessheeatmeat.她很少吃肉。RarelydoIdrinkwinethesedays.这些天来，我很少喝酒。构词解析：rare,adj,罕见的；稀有的；rarely,adv,很少；难得；rareness,n,稀有；珍奇；（空气等的）稀薄高中英语辅导网拓展：表示频率的副词：always总是，usually通常，frequently/often经常，sometimes有时，occasionally偶尔，seldom/rarely很少，never从不PracticeRewritethefollowingsentenceswithoutchangingthemeaning.1.Ihaverarelyseensuchabeautifulsunset.____________seensuchabeautifulsunset.2.Heisrarelyill.____________ill.Keyforreference1.RarelyhaveI2.Rareishe.4.toothachen.[c,u]paininatoothorteeth.牙痛e.g.I’vegotatoothache.我牙痛。Hehadabadtoothache.他的牙痛得厉害。构词解析：ache(n)疼痛，和表示身体部位的单词结合构成复合词，例如：aheadache头痛，(a)toothache牙痛，(a)backache背（腰）痛，(an)earache耳痛，(a)stomachache胃痛PracticePutthesesentencesintherightordertomakeupadialogue.A.P:Imustseethedentist（牙医）now,nurse.B.N:I’mafraidhecan’t.Can’tyouwaittillthisafternoon?C.P:That’sverylate.Canthedentistseemenow?D.N:Thedentistisverybusyatthemoment.Canyoucomeat2.p.m.?E.P:Icanwait,butmytoothachecan’t!1._____2.______3._______4._______5._______Keyforreference1.__A___2.__D_3.__C__4.___B__5.__E___5.unhealthyadj.nothavingornotshowinggoodhealth；harmfultohealth不健康的；有害健康高中英语辅导网的。e.g.Thatisanunhealthydiet.那是不健康的饮食。Theairinthisareaisunhealthyforpeople.这地区的空气对人们的健康不利。构词解析：unhealthy.adj.不健康的;health.n[u]健康;healthy.adj.健康的PracticeCompletethefollowingsentences1.Theyarewellfedsotheyarevery_______.(健康的).2.Mygrandmotherenjoysgood_______（健康）thoughsheisover80.3.Manychildreninthisvillagelookthin,paleand________.（不健康的）Keyforreference1.healthy2.health3.unhealthy.6．wealthyadj.havingwealth,rich富裕的；有财产的e.g.Shewantstomarryawealthyman.她想嫁一个有钱人。Mygoalinlifeisnottobewealthybecausetruewealthcomesfromgoodhealth.我生活中的目标不是变得富有，因为真正的财富来源于好的健康。构词解析：wealthy.adj.富有的;wealth.n.[u]财富awealthof...大量的......PracticeTranslatethefollowingsentencesintoEnglish.1.知识就是财富。________________________2.他哥哥是个富裕的生意人。_________________________Keyforreference1.Knowledgeiswealth.2.Hiselderbrotherisawealthybusinessman.7．anxious.高中英语辅导网(1)adj.feelinganxiety;worried;uneasy;stronglywishingsth,eagerforsth.忧虑的，不安的；渴望的e.g.Sheisveryanxiousabouthermother’