2024年步步高大一輪復(fù)習(xí)word文檔(人教版)Book-1-unit-3

類型：反映信話題：校園中的亂涂和亂扔垃圾現(xiàn)象典例展示June8,2024DearMr.Headmaster，IamLiYue，astudentfromClass1，SeniorⅡ.Iamwritingtodrawyourattentiontosomeimproperbehaviouramongusstudents：litteringandscribbling.It_makes_our_schooldirty_and_unpleasant，and_does_harm_to_the_image_of_our_school.1IalwaysfeelashamedwheneverIseethis.Itisclearlynotappropriateforastudenttolitterandscribbleabout.Iwonderiftheschoolcouldplacemoredustbinsaroundandsetupspecificrulesagainstsuchbehaviour.Atthesametime，studentsshouldbeencouragedtodevelopgoodhabitsandbetterbehavethemselves.Ibelievethat，withthejointeffortsofbothteachersandstudents，our_school_will_become_a_more_enjoyable_place_in_the_near_future.2Thankyouforyourconsideration.Yoursfaithfully，LiYue(2024·浙江)佳句變式范文中的劃線句子可改為如下句式：1.Notonlydoesitmakeourschooldirtyandunpleasant，butalsoitdoesharmtotheimageofourschool.2....wewillmakeourschoolamoreenjoyableplacetostudyininthenearfuture.Ⅰ.詞匯與派生聯(lián)想記憶法1.journaln.日記；雜志；定期刊物→journalistn.記者2.prefervt.更喜愛；選擇某事物(而不選擇其他事物)→prefer(sb.)to_dosth.喜愛/愿意(某人)去做某事3.persuadevt.說服；勸說→persuadesb.to_dosth./persuadesb.intodoingsth.說服某人去做某事4.graduaten.大學(xué)畢業(yè)生；vi.畢業(yè)→graduatefrom...畢業(yè)于……→graduationn.畢業(yè)5.schedulen.時(shí)間表；進(jìn)度表；vt.為某事安排時(shí)間→onschedule按時(shí)，如期→bescheduledtodosth.預(yù)計(jì)去做某事6.fondadj.喜愛的；慈祥的；寵愛的→befondof喜愛；喜愛7.altituden.海拔高度；高處→attituden.態(tài)度；看法→latituden.緯度8.pacevi.緩慢而行；踱步；n.一步；步調(diào)；速度→keeppacewithsb./sth.與……步調(diào)一致，與……并駕齊驅(qū)9.midnightn.午夜；子夜→atmidnight在午夜10.beneathprep.在……下面→圖解如下構(gòu)詞記憶法1.transportn.運(yùn)送；運(yùn)輸；交通車輛，運(yùn)輸工具→transportvt.運(yùn)輸；運(yùn)送2.disadvantagen.不利條件，不便之處→advantagen.有利條件；優(yōu)勢(shì)3.cyclevi.騎自行車→cyclingn.騎自行車運(yùn)動(dòng)→cyclistn.騎自行車的人4.finallyadv.最后；終于→finaladj.最終的，最后的；n.決賽5.organizevt.組織；成立→organizationn.組織，團(tuán)體，機(jī)構(gòu)6.determinevt.決定；確定；下定決心→determinedadj.堅(jiān)決的；有決心的7.boilvi.(液體)沸騰；(水)開→boiledadj.沸騰/開過的→boilingadj.正在沸騰的8.forecastn.&vt.預(yù)測(cè)，預(yù)報(bào)→forecastern.預(yù)測(cè)者；天氣預(yù)報(bào)員→(同義詞)predict9.insurancen.保險(xiǎn)→insurevt.給……保險(xiǎn)，投保10.wooln.羊毛；毛織品→woollenadj.毛織的，羊毛的11.reliableadj.可信賴的；可靠的→relyvi.依靠語(yǔ)境助記法Thejournalistoftensaysaltitudereliesonattitude.Sincehisgraduation，hehasturnedmanydisadvantagesintoadvantagesforhisbeingdeterminedandevenstubborn.It’sforecastthathewillmakeacarefullyorganizedjourneytoatempleinavalley.Allhisparcelshavebeentransportedthereaheadofschedule.學(xué)情自測(cè)根據(jù)句意用框中所給詞的適當(dāng)形式填空attitude，transport，insurance，schedule，reliable，persuade，determine，fare，cycle，journal1.Heissostubbornthatnoonecanpersuadehimtodoanything.2.Adeterminedpersonalwaystriestofinishthejob，nomatterhowharditis.3.Iwantedtopaythetrainfare，butmyfriendinsisted.FinallyIgavein.4.Shepersuadedallofustocycletoworkinsteadoftakingthebus.5.Ireadaboutitinascientificjournal.6.What’syourattitudetowardhisplan？Isitpractical?7.TheywilltransportthegoodsfromShanghaitoJapannextweek.8.Iboughtanothersafetylockasanadditionalinsuranceagainstthieves.9.We’llbestoppinghereforlongerthanscheduled.10.Fromareliablesource，thenewshetolduswasnottrue.Ⅱ.短語(yǔ)與拓展1.careabout關(guān)心；憂慮；惦念→carefor照顧，照料；喜愛2.changeone’smind改變主意→keep/bear...inmind將……記在心中3.makeupone’smind(todosth.)下決心，決定(去做某事)→bedeterminedtodosth.決定去做某事(狀態(tài))4.givein投降；屈服；讓步→giveout(vi.)用完，耗盡；(vt.)分發(fā)，散發(fā)；發(fā)出(光、熱等)5.asusual照常，像往常一樣→asfollows如下6.putup樹立，建立；使升高；張貼→putaway把……放回原處/收起；積蓄，攢錢7.stayawake醒著→stayup熬夜學(xué)情自測(cè)根據(jù)語(yǔ)境選擇上述短語(yǔ)的適當(dāng)形式填空1.Don’tgive_intodifficulties.2.Shehasafewthousanddollarsput_awayforherretirement.3.Sincegettingtoknowhimbetter，I’vechanged_my_mindabouthim.4.CanyouimaginethattheCEOofPuTianSoftwareCompanydoesn’tcare_abouthisdress?5.Whowillcare_foryourchildifyouareout?6.Afteramonththeirfoodsuppliesgave_out.Ⅲ.教材與高考1.(教材原句)Ever_sincemiddleschool，mysisterWangWeiandIhave_dreamed_abouttakingagreatbiketrip.(P18)(2024·陜西，12)Hisfirstnovel________goodreviewssinceitcameoutlastmonth.A.receives B.isreceivingC.willreceive D.hasreceived命題思路此題考查動(dòng)詞時(shí)態(tài)在具體語(yǔ)境中的運(yùn)用。選D項(xiàng)。變式訓(xùn)練I’msurehisfirstnovel________goodreviewswhenitcomesoutnextmonth.A.receives B.isreceivingC.willreceive D.hasreceived答案解析本變式雖然和原題在用詞上差不多，但題干所提供的語(yǔ)境完全變了，動(dòng)詞時(shí)態(tài)的選用也就不同了。句意為：我敢肯定當(dāng)他的第一本小說下個(gè)月出版時(shí)，將會(huì)受到良好的評(píng)價(jià)。根據(jù)語(yǔ)境及whenitcomesoutnextmonth，從句中用一般現(xiàn)在時(shí)，主句用一般將來時(shí)，應(yīng)選C項(xiàng)。2.(教材原句)WhenItoldherthe_air_would_be_hard_to_breathe...，shesaiditwouldbeaninterestingexperience.(P18)(2024·福建，27)ThedifferenceinthicknessandweightfromtheearlierversionmakestheiPad2morecomfortable________.A.held B.holdingC.beheld D.tohold命題思路此題考查動(dòng)詞不定式作狀語(yǔ)在具體語(yǔ)境中的運(yùn)用。考查句式be＋easy/difficult/hard/comfortable＋todo...。答案為D項(xiàng)。變式訓(xùn)練Thedifferenceinthicknessandweightfromtheearlierversionmakestheusersmoreeasily________theiPad2.A.held B.holdingC.hold D.tohold答案解析本變式在語(yǔ)用、語(yǔ)境上都發(fā)生了變化。句意為：厚度和重量與先前版本的不同使得使用者更加方便地拿著iPad2使用。此題考查make作使役動(dòng)詞后接復(fù)合賓語(yǔ)的用法，即makesb.dosth.，故正確答案選C。Ⅳ.經(jīng)典課文原句1.Once_she_has_made_up_her_mind(一旦她下定決心),nothingcanchangeit.2.Itbecomesrapidsasitpassesthroughdeepvalleys，travelling_across_western_Yunnan_Province(流經(jīng)云南西部).3.Adeterminedpersonalwaystriestofinishthejob，no_matter_how_hard_it_is(不管有多難).4.Alongthewaychildrendressed_in_long_wool_coats(穿著長(zhǎng)羊皮大衣的)stoppedtolookatus.5.To_climb_the_mountains(爬山)washardworkbutaswelookedaroundus,weweresurprisedbytheview.6.That’swhat_we_looked_like(我們看起來像的樣子)!Ⅴ.單元語(yǔ)法自測(cè)用所給動(dòng)詞的適當(dāng)形式補(bǔ)全以下句子1.Bettyis_leaving(leave)forGuangzhoubyplaneat3∶00thisafternoon.2.TheBrownsare_going(go)toNorthChinabytrainnext3.Somefriendsare_coming(come)toAnne’sbirthdaypartythisevening.4.Myplaneis_taking_off/takes_off(takeoff)at9∶20，soImustbeattheairportby8∶30.5.Theyare_getting(get)therebyair.1.preferv.tolikeorwantsb.orsth.morethansb.orsth.else更喜愛；鐘愛prefersb.todo...寧愿讓某人做……preferdoingAtodoingB和做B相比更喜愛做AprefertodoAratherthandoB寧愿做A，而不愿做Bhaveapreferencefor喜愛，偏好……(1)Weprefertypedarticlesbetween1,000and2,000wordsinlength.(2024·北京，閱讀B)長(zhǎng)度在1000至2000個(gè)單詞之間，我們更喜愛打印稿。(2)Ipreferhernottocome.我寧愿她不來。(3)Shepreferredtogowithusratherthanstaybehind.＝Shepreferredgoingwithustostayingbehind.她寧愿和我們一起去，而不愿留下。寫作句組——總分值作文之佳句a.Withthedevelopmentofthemodernworld,moreandmorepeopleprefertovisitzoos. (2024·廣東)b.Inaword,peoplewanttodothisjustbecausetheyloveanimals. (2024·廣東)c.Butamongthesecourses,I’dliketolearncookingbest.(2024·上海)2.persuadev.tomakesb.dosth.bygivingthemgoodreasonsfordoingit勸說；說服；tomakesb.believethatsth.istrue使信服；使相信persuadesb.todosth.＝persuadesb.intodoingsth.說服某人做某事persuadesb.nottodosth.＝persuadesb.outofdoingsth.說服某人不做某事persuadesb.ofsth./that...使某人相信某事注意表示“試圖說服某人做某事〞為trytopersuadesb.todosth.或advisesb.todosth.。(1)Topersuadepeopletoreducetheirwaste. (2024·湖北，閱讀C)說服人們減少浪費(fèi)。(2)Don’tletyourselfbepersuadedintobuyingthingsyoudon’treallywant.不要被說服去購(gòu)置那些你其實(shí)不需要的東西。(3)WefinallypersuadedBenofthewisdomofthedecision.我們最終使本相信這個(gè)決定是明智的。3.determinev.todecidedefinitelytodosth.決定，決心；toofficiallydecideand/orarrangesth.確定determinetodo...決定做……表示動(dòng)作determineon/upon決定determinesb.todo...使某人決定做……bedeterminedtodo...決心做……表示狀態(tài)withdetermination堅(jiān)決地；果斷地(1)Shelleytakesherdanceteacherasarolemodelmainlybecausesheisdetermined. (2024·大綱全國(guó)卷，閱讀E)Shelley把她的舞蹈老師看作是學(xué)習(xí)的典范主要是因?yàn)樗且粋€(gè)意志堅(jiān)決的人。(2)Wedetermined_onanearlystart.我們決定早些動(dòng)身。(3)Whatdeterminedhertomarryhim?是什么使她下決心嫁給他的？思考題“決定做某事〞的表達(dá)方式還有：make_up_one’s_mind_to_do...,_decide_to_do...,_make_a_determination_to_do...,_make_a_decision_to_do...等。對(duì)點(diǎn)自測(cè)Ⅰ.語(yǔ)境填詞eq\x(prefer，determine，persuade)1.Iwouldpreferthatyou(should)notmentionmyname.2.Weshouldcarryouttheplanwithdetermination.3.Wetriedtopersuadehimtogiveupsmoking,buthewouldn’tlisten.Ⅱ.單項(xiàng)填空1.Mr.Greenhasneversmokedanymoresincehiswife________himtogiveitup.A.wanted B.persuadedC.advised D.suggested答案B2.________Sunday,ratherthan________athome,Ipreferred________.A.Itbeing；stay；totravelB.Being；tostay；totravelC.Havingbeen；stay；travelD.Itwas；tostay；traveling答案A3.________togiveupsmoking,hethrewawayhis________cigarettes.A.Determined；remainedB.Determined；remainingC.Determining；remainedD.Determining；remaining答案B1.careabout關(guān)心；介意；在乎；憂慮；惦念carefor喜愛/喜好……多用于否認(rèn)句、疑問句；,照顧；照看Whocares？誰(shuí)在乎？管它呢！takecareof＝lookafter照顧withcare小心地(1)Imadethechoicetowithdrawfromcollegetocareforher.(2024·天津·閱讀B)我選擇了退學(xué)來照料她。(2)Shethinksonlyofherself；shedoesn’tcare_aboutotherpeople.她只顧自己，不顧別人。(3)Hedoesn’tcareaboutanythingwemaysay.我們說什么他都不在乎。寫作句組——總分值作文之佳句a.Wecanworkwondersifweuniteasafamily，caringforeachotherandhelpingthoseinneed. (2024·福建)b.Atfirst，Ididmostofthedutiesmyselfwhileotherstudentscaredlittleaboutclassactivities. (2024·湖北)c.Asamatteroffact，itisbecauseourparentscareaboutusthattheywanttoknowusbetter. (2024·安徽)2.makeupone’smind(s)下定決心changeone’smind改變主意bear/keep...inmind記住have...inmind考慮；打算call/bringsth.tomind回憶起某事keep/fixone’smindupon/on把注意力集中在……(1)AtonepointImadeupmymindtotalktoUncleSam.ThenIchangedmymind，realizingthathecoulddonothingtohelp.(2024·上海，33)在某個(gè)時(shí)候，我決心和Sam叔叔談?wù)劊又腋淖兞酥饕?，意識(shí)到他不能做任何事來幫助。(2)Maybeyou’llthinkitoverandchangeyourmind.也許你會(huì)好好想想并改變主意。(3)Oncehemakes_up_his_mind，nothingcanbedonetochangehismind.他一旦下定決心，就沒有什么能使他改變主意。3.givein屈服；投降；讓步；上交giveintosb./sth.對(duì)某人/某事物讓步giveaway贈(zèng)送；泄露；出賣giveback歸還；回報(bào)giveoff放出；散發(fā)出(液體、氣體、氣味、熱量、光、聲音)giveout分發(fā)；用完，消耗盡，筋疲力盡(1)Itseemsthattheworldalwaysgivesbacktoyouwhenyouneedit.(2024·安徽，完形)這個(gè)世界似乎總是在你需要它的時(shí)候回報(bào)于你。(2)Shewouldratherdiethangive_in.她寧死不屈。(3)Hehasgivenintomyviews.他被迫接受了我的觀點(diǎn)。思考題其他與give相關(guān)的短語(yǔ)：give_up放棄/give_over移交/give_way_to給……讓路4.Eversincemiddleschool，mysisterWangWeiandIhavedreamedabouttakingagreatbiketrip.自高中起，我姐姐王薇和我就一直夢(mèng)想作一次了不起的自行車旅行。句式提?。和瓿蓵r(shí)＋eversince常用句型：Itis/hasbeen＋一段時(shí)間＋since＋從句從句用一般過去時(shí)自從……有多長(zhǎng)時(shí)間了since后跟的是一個(gè)時(shí)間點(diǎn)，當(dāng)從句中的動(dòng)詞是非延續(xù)性動(dòng)詞時(shí)，表示從這個(gè)動(dòng)作開始計(jì)時(shí)；假設(shè)從句中的動(dòng)詞是延續(xù)性的動(dòng)詞或狀態(tài)時(shí)，那么表示從這個(gè)動(dòng)作或狀態(tài)結(jié)束的時(shí)間算起。(1)Thoughthebeliefinthemeritofdirtwaslong-lived，dirthasnolongerbeenregardedasaniceneighboureversincethe18thcentury. (2024·重慶·閱讀C)雖然對(duì)灰塵優(yōu)點(diǎn)的相信長(zhǎng)期存在，但自從18世紀(jì)以來灰塵不再被當(dāng)作一個(gè)好鄰居。(2)Ever_since_getting/I_got_to_know_you，Ican’tstopthinkingaboutyou.自從認(rèn)識(shí)了你，我無時(shí)無刻不想你。(3)Itis/hasbeen3yearssinceIjoinedthearmy.我當(dāng)兵已經(jīng)三年了。5.Althoughshedidn’tknowthebestwayofgettingtoplaces，sheinsistedthatsheorganizethetripproperly.盡管她對(duì)去某些地方的最正確路線并不清楚，她卻堅(jiān)持要自己把這次旅行安排得盡善盡美。句式提取：insistthatsb.(should)dosth.insistondoingsth.堅(jiān)持要求做某事insistthat...堅(jiān)持說，堅(jiān)持認(rèn)為真實(shí)語(yǔ)氣(1)Butfortheteacherwhokeptinsistingonmy“goingforit〞，Iwouldn’thavedecidedtogiveitatry. (2024·北京，完形)假設(shè)不是老師堅(jiān)持讓我爭(zhēng)取的話，我才不會(huì)決定去嘗試它呢。(2)Iinsistthatyoutakeanimmediateactiontoputthisright.我堅(jiān)決要求你立刻采取行動(dòng)把這件事情處理好。(3)Theyoungmaninsistedthathe_hadn’t_stolenthegirl’shandbag.那個(gè)年輕人堅(jiān)持說他沒有偷那女孩的包。對(duì)點(diǎn)自測(cè)Ⅰ.選詞填空eq\x(makeupone’sminds，careabout，givein)1.Igave_intotemptationandhadacigarette.2.Haveyoumade_up_your_mindwhattodoyet?3.Althoughhehasalotofmoney，hedoesn’tcare_abouthisclothes.Ⅱ.完成句子1.約翰容許醫(yī)生他不再吸煙了，從那以后，他再也沒有吸過煙。Johnpromisedhisdoctorhewouldnotsmoke，andhe_has_never_smoked_ever_since.2.我堅(jiān)決要求你準(zhǔn)時(shí)去那里。Iinsistthatyou_(should)_go_there_on_time.Ⅲ.單項(xiàng)填空1.Thoughtheymetwithmuchdifficulty，theteam______togoonwiththeexperiment.A.changedtheirmindsB.madeuptheirmindsC.tooktheirmindsD.gavetheirminds答案B2.Theman________onataxiformeeventhoughItoldhimIlivednearby.A.advised B.suggestedC.insisted D.persuaded答案C3.Ifwe________tohim，hewillonlymakefurtherdemands.A.giveup B.giveawayC.giveout D.givein答案D4.Asisreported，itis100years________QinghuaUniversitywasfounded.A.when B.beforeC.after D.since答案D5.Idon’t________whatotherpeoplethink.A.callfor B.applyforC.careabout D.carefor答案C

課時(shí)標(biāo)準(zhǔn)訓(xùn)練Ⅰ.單項(xiàng)填空(建議用時(shí)8′)1．—DoyouknowLiMing?—LiMing？Whichone？Iknow________LiMinginourclassverywell.Heis________LeiFengofourtimes.A．/；/ B．a(chǎn)；aC．a(chǎn)；the D．the；the2．Theoldworkerinsistedthathe________old，and________backtotheworkingpostagain.A．wasn’t；besent B．wasn’t；wassentC．benot；send D．isn’t；sent3．Hissisterlefthomein1998，and________eversince.A．hadnotbeenheardofB．hasnotbeenheardofC．hadnotheardofD．hasnotheardof4．Ifapersonhasnothadenoughsleep，hisactionswillgivehim________duringtheday.A．a(chǎn)way B．upC．in D．back5．Aftertheearthquake，theinjuredwerecared________inthelocalhospitalsortakenbyairtothehospitalsintheneighbouringcities.A．of B．for C．a(chǎn)fter D．with6．Whatgreattroubletheboyhad________hisfathertoquitsmoking！A．persuaded B．persuadeC．topersuade D．persuading7．Hewasdeterminedthathischildren________tothebestschoolavailable.A．shouldgo B．wentC．oughttogo D．wouldgo8．Heprefers________indoors________outthisafternoon.A．tostay；togoB．staying；togoingC．staying；togoD．tostay；togoing9．Hedecidedthathewoulddriveallthewayhomeinsteadof________atahotelforthenight.A．puttingdown B．puttingoffC．puttingon D．puttingup10．Nomatterhow________，itisnotnecessarilylifeless. (2024·遼寧，25)A．a(chǎn)desertmaybedryB．dryadesertmaybeC．mayadesertbedryD．drymayadesertbe11．Hestaysuptoolateeverynight，________tocatchupwithhisclassmates.A．determined B．beingdeterminedC．todetermine D．determine12．Towriteagoodarticleyoumustfirst________yourideasverycarefully.A．organize B．settleC．report D．speak13．________thepolicethoughthewasthemostlikelyone，sincetheyhadnoexactproofaboutit，theycouldnotarresthim. A．Although B．AslongasC．Ifonly D．Assoonas14．Myheadache________me.Ithoughtitwasgoingaway，butnowit’sgettingworseandworse.A．iskilling B．waskillingC．kills D．killed15．—I’mafraidthatshewon’tcometohelpmeasshepromised.—Don’tworry.Nothingwill______hermindifshehas______uphermind.A．change；made B．turn；doneC．grow；given D．make；changedⅡ.閱讀理解(建議用時(shí)6′)DeathValleyisoneofthemostfamousdesertsintheUnitedStates，coveringawideareawithitsalkalisand.Almost20percentofthisareaiswellbelowsealevel，andBadwater，asaltwaterpool，isabout280feetbelowsealevelandthelowestpointintheUnitedStates.LongagothePanamintIndianscalledthisplace“Tomesha〞—thelandoffire.DeathValley’spresentnamedatesbackto1849，whenagroupofminerscomingacrossfromNevadabecamelostinitsunpleasantnessandhugenessandtheiradventureturnedouttobeasadstory.TodayDeathValleyhasbeendeclaredaNationalMonumentandiscrossedbyseveralwell-markedroadswheregoodservicescanbefoundeasily.Luckilythechangecreatedbyhumansettlementhashardlyruinedthespecialbeautyofthisplace.Herenaturecreatedalotofsurprisingthings，almostlikethesightsonthemoon，ever-changingasthefrequentwindmovesthesandabout，showingthemostunusualcolors.OneofthemostastonishingandvariablepartsofDeathValleyistheDevil’sGolfCourse，whereitseemshardforonetotellrealityfromterribledreams.Sandsculpturesstandonafrighteningground，aseveningshadowsmoveandlengthen.1．________isthelowestplaceinthedesert.A．Tomesha B．DeathC．Nevada D．Badwater2．Thenameofthevalleycomesfrom________.A．a(chǎn)nIndiannameB．thedeathoftheminersC．thelocalpeopleD．a(chǎn)NationalMonument3．Fromthepassagewecanlearnthat________.A．noonehadeverknownthedesertbeforetheminersB．it’sstillnoteasytotravelacrossthedesertC．peoplecanfindgas-stations，cafesandhotelsinthedesertD．peoplehavechangedthenaturalsightsofthedesert4．DevilGolfCourseisfamousfor________.A．thefrequentwindB．thecolorsofthesandC．dream-likesightsD．thesandsculptures5．Fromthepassagewecanseethatthewriter________theDeathA．a(chǎn)ppreciates B．isfearfulofC．dislikes D．istiredofⅢ.閱讀表達(dá)(建議用時(shí)13′)VitaminDhelpsbonesandmusclesgrowstrongandhealthy.LowlevelsofvitaminDcanleadtoproblemslikerickets(佝僂病)andosteoporosis(骨質(zhì)疏松)．Ricketsisadeformitymainlyfoundinchildren.Osteoporosisisthethinningofbone，acommonproblemaspeople，especiallywomen，whentheygetolder.StudiesinrecentyearshavesuggestedthatvitaminDmayalsohaveotheruses.________thatlowlevelsofvitaminDmayincreasetheriskofheartattacksinmenanddeathsfromsomecancers.OtherstudieshaveshownthatpeoplewithrheumaticdiseasesoftenhavelowlevelsofvitaminD.TheeasiestwaytogetvitaminDisfromsunlight.Theultravioletraysreactwithskincellstoproducethevitamin.Butmanypeopleworryaboutskincancerandskindamagefromthesun.Also，darkerskinnedpeopleproducelessvitaminDthanlighterskinnedpeople.Productionalsodecreasesinolderpeopleandthoselivinginnorthernareasthatgetlesssunlight.NotmanyfoodsnaturallycontainvitaminD．Foodswithhighlevelsincludeoilyfishsuchassalmon，tunaandmackerel，andfishliveroils.BostonUniversityresearchersreportedin2024thatfarmedsalmonhadalotlessvitaminDthanwildSmallamountsofvitaminDarefoundinbeefliver，cheeseandeggyolks.Andsomepeopletakedietarysupplementscontainingthevitamin.ButmostofthevitaminDintheAmericandietcomesfromfoodslikemilkwiththevitaminadded.The