Unit 3 Sports and Fitness 课时检测-2022-2023学年高一上学期英语人教版（2019）必修第一册

必修1Unit3SportsandFitness课时检测[基础知识自测]1.单词拼写1.AsfarasI'mconcerned,studentsshouldplacetheirstudy,__________(健康)andsafetybeforetheotherthings.2.Tobeginwith,anew__________(体育场)hasbeenbuilt，whichhasbecomethenewlandmarkinourschool.3.Thegirlreplacedherbrotherasavolunteertoservethesports__________(比赛项目).4.Iamluckyenoughtobechosenasoneofthe__________(主持人).5.IfyoustudyEnglishhard,youwill__________(掌握)thelanguage.6.Withouthardtraining,hecouldneverhavewonsixgold__________(奖牌)atthe13thChineseNationalGames.7.Hishardworkand__________(决心)ledtohissuccess.8.Wang'sgirlfriend,PengLuyang,isaformernational__________(冠军).9.Tiredandhungry,wehadno__________(力气)towalkon.10.It'sagreat__________(荣幸)formetobeinvitedtomakeaspeechatthemeeting.2.单句语法填空1.Wewereimpressedwithhisworksaswellashisgreat__________(determine)torealizehisdream.2.Iamverysurprisedtohearthathegotbadly__________(injure)inamotorcaraccident.3.Inmanysports，physical__________(fit)isnotas/soimportantastechnique.4.Losinggamestaughtmetopractice__________(hard)thaneverbeforeandnevergiveup.5.Theabilitytokeepcalmisoneofhis__________(strength).6.__________(master)Englishmeanswecanseetheworldthroughanewwindow.7.I__________(show)greatinterestinEnglishsincemychildhood.8.Youshouldsetasidesometimetoconsideryoursuccessand__________(fail).9.Weliveinaworldinwhichonlythestrongestcanmake__________tothetop.10.Theboyisathletic,especiallygoodatfootballandhaswonmany__________(medal).3.补全句子/一句多译1.一到机场，我就发现把身份证落在家里了。(过去完成时)AssoonasIgottotheairport,IrealizedthatI_________________myIDcardathome.2.交朋友的关键是对别人诚实。____________________________________istobehonestwithothers.3.这给我提供了一个机会来学习如何与朋友相处，如何与他们分享我的经验。Itoffersmeachancetolearnhowtogetalongwithmyfriendsandhow________________________them.4.不管有多晚，他母亲总是等他。①____________________________________,hismotherisalwayswaitingforhim.②____________________________________,hismotherisalwayswaitingforhim.5.鲍勃听到这个好消息时似乎很高兴。①____________________________________whenheheardthegoodnews.②____________________________________whenheheardthegoodnews.4.课文语法填空阅读课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。LangPing1.__________(bring)honourandglorytohercountryasaplayer,2.__________(win)themedalsatworldchampionshipsandtheOlympicsasacoach,andwasloved3.__________fansathomeandabroadasaperson.In2015,LangPing'steamwasfalling4.__________.Oneofthebestplayershadbeen5.__________(injury),andtheteamcaptainhadtoleavebecauseofheartproblems.6.__________,shedidn'tloseheart.Shefaceddifficulties7.__________(brave)andwontheworldchampionshipfinally.In2016,LangPinghelpedtheteamwintheOlympicgoldinBrazil.MichaelJordan,8.__________(know)as“AirJordan”,changedbasketballwithhisgracefulmovesandjumps.Jordan'sskillswereimpressive,buthismentalstrengthmadehimunique.Hethoughtthesecret9.__________hissuccesswaslearningfromhisfailures.Hesaidthathecouldaccept10.__________(fail)butcouldn'tacceptnottrying.Hesharedhissuccesswithothersinlife.HestartedtheBoysandGirlsClubtohelpyoungpeople.[素养能力提升]1.阅读理解AFootballismyfavoritesport.Ilovedtowatchit,butIhadneverplayedinafootballgamebeforeIwenttocollege.Ilackedself­confidenceandIdoubtedifIcoulddowellinateam,whichwaswhyIhardlydidsportstogetherwithothers.Ijustlovedpracticingplayingfootballinthebackyardofmyhouse.AboutonemonthafterIwenttocollege,onedaysomeofmyclassmatessaidthey'dplayafootballgamewithsomeplayersofanotherclass.IreallylookedforwardtoitbutneverthoughtI'djointhemtoplay.ThatdayfinallycameandIwenttowatchwithmyclassmates.However,justabouttenminutesafterthegamestarted,onememberofourfootballteamgotinjuredandcouldnolongerplay.Theothermemberslookedworried.Thenoneofthemcametomeandasked,“Canyouplay?”Atfirst,Ishookmyhead,butthenInodded.“Great!Comeandplay，”hesaid.Ifollowedhim,havingnoideaatallwhattodo.Tomyjoy,heaskedmetoplayindefense(防守).DefensewasmyfavoritebecauseIfounditmorefunandlesscomplicated(复杂的).Thenthegamebeganagain.Thereweren'talotofbigkidsontheoffensiveline(攻击线)oftheotherteamandIsuddenlygainedsomeself­confidence.Aboutfiveminuteslater,theballwaskickedtowardtheguard.Ithoughtitwasagoodopportunityforme.Iquicklyranpasttheguardandgottheball.Whentheguardcametotheoffensiveline,Ikickedtheball.Iscoredandallmyclassmatescheered.Youmaynotbelieveit,butIscoredtwicethattime.Thefinalscorewas6－2andwewon.MyteammatesthoughtthatIdidverywellandnoneofthembelievedIhadn'tplayedinagamebefore.Thatgamereallychangedme.Iamareallyconfidentpersonnowandoftenplayfootballgameswithmyteammates.1.Whydidn'ttheauthorplaysportswithothersbefore?A.Hewasn'tinterestedinsports.B.Hewasn'tpopularwithothers.C.Hecouldn'taffordtimeforsports.D.Hewasn'tconfidentabouthisability.2.Seeingtheauthorshakinghisheadatfirst,hisclassmatemostprobablyfelt.A.excited B.boringC.anxious D.angry3.Weinferthatafterplayingthegame,theauthormostprobably.A.gotnervousaboutwatchingfootballgamesB.decidedtobecomeafull­timefootballplayerC.wasconsideredthebestfootballplayeratschoolD.fellinlovewithjoiningothersinplayingfootball4.Whatwouldbethebesttitleforthetext?A.Myfirstfootballgame.B.Mymostunforgettableexperience.C.Mywayoffindingself­confidence.D.Mywayofscoringatfootballgames.BAmericaisamobilesociety.FriendshipsbetweenAmericanscanbecloseandreal,yetdisappearsoonifsituationschange.Neithersidefeelshurtbythis.BothmayexchangeChristmasgreetingsforayearortwo,perhapsafewlettersforawhile—thennomore.Ifthesametwopeoplemeetagainbychance,evenyearslater,theypickupthefriendship.ThiscanbequitedifficultforusChinesetounderstand,becausefriendshipsbetweenusflowermoreslowlybutthenmaybecomelifelongfeelings,extending(延伸)sometimesdeeplyintobothfamilies.Americansarereadytoreceiveusforeignersattheirhomes,sharetheirholidays,andtheirhomelife.Theywillenjoywelcomingusandbepleasedifweaccepttheirhospitality(好客)easily,buttrulycan'tmanagethetimetodoagreatdealwithavisitoroutsidetheirdailyroutine.Theywillprobablyexpectustogetourselvesfromtheairporttoourownhotelbybus.Andtheyexpectthatwewillphonethemfromthere.Oncewearriveattheirhomes,thewelcomewillbefull,warmandreal.Wewillfindourselvestreatedhospitably.AnotherdifficultpointforusChinesetounderstandAmericansisthatalthoughtheyincludeuswarmlyintheirpersonaleverydaylives,theydon'tshowtheirpolitenesstousifitrequiresagreatdealoftime.Thisisusuallytheoppositeofthepracticeinourcountrywherewemaybegenerouswithourtime.Sometimes,we,ashosts,willappearatairportseveninthemiddleofthenighttomeetafriend.Wemaytakedaysofftoactasguidestoourforeignfriends.TheAmericans,however,expresstheirwelcomeusuallyathomes.FortheAmericans,itisoftenconsideredmorefriendlytoinviteafriendtotheirhomesthantogotorestaurants,exceptforpurebusinessmatters.Soaccepttheirhospitalityathome!5.WhereareweexpectedtocallourAmericanfriendsifwegotherebyplane?A.Onthebus. B.Attheairport.C.Neartheirhome. D.Atourownhotel.6.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.FriendshipsbetweenAmericansusuallylastforalltheirlives.B.Americansalwaysshowtheirwarmtheveniftheyareverybusy.C.Americanswillcontinuetheirfriendshipsagainevenafteralongbreak.D.FriendshipsbetweenAmericansusuallyextenddeeplyintotheirfamilies.7.Whichisthetypical(典型的)wayofAmericanhospitality?A.Treatingfriendsathome.B.Sharingeverythingtheyhave.C.Takingdaysofftobewithfriends.D.Meetingfriendsattheairportatmidnight.8.What'sthebesttitleforthetext?A.Americans'hospitalityB.ThemobilityofAmericansC.FriendshipsbetweenChineseD.Americans'viewsoffriendshipsCWhensnack­foodbusinessmenstartedsellingfat­freeproductsbackinthe80s,theyreallyachievedsuccess.Consumerswereinterestedinavoidingfatbecauseitcausedheartproblemsandmadethemfat.Sothenonfatfoodswereadieter'sdream!Fat­freechipsanddairyproductsflewofftheshelves.However,asitturnedout,notmanypeoplebecameslimandhealthyfromgoingonfat­freediets.Infact,noteatingfatseemedtocausemorehealthproblemsinstead.Therearemanynaturallyfat­freefoods.Fruitsandvegetablesareonthetopofthelist.They'reusuallylowincalories(卡路里)andarefilledwithbeneficialvitamins(维生素).That'snotthecasewithprocessedfat­freefood.Theproblemwithfat­freepackagedfoodisthatfatmakesfoodtastegood.Withallthefattakenaway,ittasteslikecardboard.So,theproducershavetoaddintoallkindsofthingstokeepthetaste—likesugar,saltandartificialflavors(人造香精).Therefore,processedfat­freefoodscanactuallyendupcontainingmorecaloriesthanthefull­fatfoods.Fruitcanbehighincaloriesandsugar,too,butyou'regettingothernutrients(营养物)alongwithit.Processedfat­freefoodsdon'thavealotofotherthings.Weknownowthatallfatisnotevil.Fathelpscontrolyournervoussystemandencouragesbonehealth.Fat­freesaladcanactuallymakeyouloseyourabilitytoprocessallthegoodnutrientsinit.Whenyoubuyafat­freeproductinthestore,takeasecondtocheckthenutrientinformationonthepackage.Ifitcontainssugar,saltorartificialflavors—orhasmorecaloriesthanthefull­fatversion—putitbackontheshelf.Mostofthetime,you'dbebettereatingthefull­fatversion,whichtastesbetterandwillsatisfyyousooner—aslongasyoudon'teatthewholebox!9.Whatisthedifferencebetweenprocessedfat­freeproductsandnaturallyfat­freefoods?A.Naturallyfat­freefoodseasilymakepeoplefat.B.Processedfat­freefoodsareusuallylowincalories.C.Processedfat­freefoodsareusuallyrichinvitamins.D.Naturallyfat­freefoodsusuallycontainbeneficialvitamins.10.Whatdoestheunderlinedword“evil”inParagraph4probablymean?A.Delicious. B.Useful.C.Harmful. D.Dangerous.11.Whatisthelastparagraphmainlyabout?A.Howtochoosefoodwisely.B.Howtoliveonahealthydiet.C.Howtodealwithhealthproblems.D.Howtocheckthenutrientinformation.2.阅读七选五Ifyouwanttokeepfit,pleaserefertothefollowing：MoveMoreMakeitadailyhabittofindwaystomoveyourbody.1Climbstairsinsteadoftakingtheelevator(电梯).Walkyourdog;playwithyourkids.Itdoesn'thavetobeanhourinthegymora45­minutedanceclass.Butthat'sgreatwhenyou'reuptoit.Atthesametime,movemore.GiveupSmokingEversince1960whenitwasannouncedthatsmokingwasharmfultohealth,Americanshavebeenreducingtheiruseoftobaccoproducts.Justrecently,we'veseenmoreandmoreteenssmoking.CoulditbetheHollywoodinfluence?2Takecare!Warnyourchildrenagainstsmoking.3Whilerecentstudiesshowaglassofwineoronedrinkadaycanhelpprotectagainstheartdisease,morethanthatcancauseotherhealthproblemssuchasliverandkidney(肝和肾)diseaseandcancer.ReduceStress(压力)Easiersaidthandone.Stresscomesinmanyways.4Spend30minutesadaydoingsomethingyoulikesuchaswalkingonthebeachorinapark,readingagoodbook,visitingafriend,listeningtorelaxingmusic,andwatchingafunnymovie.ProtectYourselfFromPollutionIfyoucan'tliveinasmog­freeenvironment,atleastavoidsmoke­filledrooms.5Exerciseindoorsinairconditioningwhenairqualityisbad.A.KeepaPositiveMentalOutlook.B.AvoidExcessive(过量的)Drinking.C.Thinkcarefullyaboutwhatyouwilldo.D.Exerciseoutsidewhenthesmog(雾霾)ratingislow.E.Itseemsthatthestarsineverymoviesmokecigarettes.F.Therearemanythingsyoucandotomoveyourarmsandlegs.G.Sometechniquesgivenbyexpertsaretothinkpositivethoughts.参考答案[基础知识自测]1.单词拼写1.AsfarasI'mconcerned,studentsshouldplacetheirstudy,fitness/health(健康)andsafetybeforetheotherthings.2.Tobeginwith，anewstadium(体育场)hasbeenbuilt，whichhasbecomethenewlandmarkinourschool.3.Thegirlreplacedherbrotherasavolunteertoservethesportsevents(比赛项目).4.Iamluckyenoughtobechosenasoneofthehosts(主持人).5.IfyoustudyEnglishhard,youwillmaster(掌握)thelanguage.6.Withouthardtraining,hecouldneverhavewonsixgoldmedals(奖牌)atthe13thChineseNationalGames.7.Hishardworkanddetermination(决心)ledtohissuccess.8.Wang'sgirlfriend,PengLuyang,isaformernationalchampion(冠军).9.Tiredandhungry,wehadnostrength(力气)towalkon.10.It'sagreathonour(荣幸)formetobeinvitedtomakeaspeechatthemeeting.2.单句语法填空1.Wewereimpressedwithhisworksaswellashisgreatdetermination(determine)torealizehisdream.2.Iamverysurprisedtohearthathegotbadlyinjured(injure)inamotorcaraccident.3.Inmanysports，physicalfitness(fit)isnotas/soimportantastechnique.4.Losinggamestaughtmetopracticeharder(hard)thaneverbeforeandnevergiveup.5.Theabilitytokeepcalmisoneofhisstrengths(strength).6.Mastering(master)Englishmeanswecanseetheworldthroughanewwindow.7.Ihaveshown(show)greatinterestinEnglishsincemychildhood.8.Youshouldsetasidesometimetoconsideryoursuccessandfailure(fail).9.Weliveinaworldinwhichonlythestrongestcanmakeittothetop.10.Theboyisathletic,especiallygoodatfootballandhaswonmanymedals(medal).3.补全句子/一句多译1.一到机场，我就发现把身份证落在家里了。(过去完成时)AssoonasIgottotheairport,IrealizedthatIhadleftmyIDcardathome.2.交朋友的关键是对别人诚实。Thekeytomakingfriendsistobehonestwithothers.3.这给我提供了一个机会来学习如何与朋友相处，如何与他们分享我的经验。Itoffersmeachancetolearnhowtogetalongwithmyfriendsandhowtosharemyexperiencewiththem.4.不管有多晚，他母亲总是等他。①Nomatterhowlateitis,hismotherisalwayswaitingforhim.②Howeverlateitis,hismotherisalwayswaitingforhim.5.鲍勃听到这个好消息时似乎很高兴。①Bobseemedtobeveryhappywhenheheardthegoodnews.②ItseemedthatBobwasveryhappywhenheheardthegoodnews.4.课文语法填空阅读课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。LangPing1.brought(bring)honourandglorytohercountryasaplayer,2.won(win)themedalsatworldchampionshipsandtheOlympicsasacoach,andwasloved3.byfansathomeandabroadasaperson.In2015,LangPing'steamwasfalling4.apart.Oneofthebestplayershadbeen5.injured(injury),andtheteamcaptainhadtoleavebecauseofheartproblems.6.However,shedidn'tloseheart.Shefaceddifficulties7.bravely(brave)andwontheworldchampionshipfinally.In2016,LangPinghelpedtheteamwintheOlympicgoldinBrazil.MichaelJordan,8.known(know)as“AirJordan”，changedbasketballwithhisgracefulmovesandjumps.Jordan'sskillswereimpressive,buthismentalstrengthmadehimunique.Hethoughtthesecret9.tohissuccesswaslearningfromhisfailures.Hesaidthathecouldaccept10.failure(fail)butcouldn'tacceptnottrying.Hesharedhissuccesswithothersinlife.HestartedtheBoysandGirlsClubtohelpyoungpeople.[素养能力提升]Ⅰ.阅读理解AFootballismyfavoritesport.Ilovedtowatchit,butIhadneverplayedinafootballgamebeforeIwenttocollege.Ilackedself­confidenceandIdoubtedifIcoulddowellinateam,whichwaswhyIhardlydidsportstogetherwithothers.Ijustlovedpracticingplayingfootballinthebackyardofmyhouse.AboutonemonthafterIwenttocollege,onedaysomeofmyclassmatessaidthey'dplayafootballgamewithsomeplayersofanotherclass.IreallylookedforwardtoitbutneverthoughtI'djointhemtoplay.ThatdayfinallycameandIwenttowatchwithmyclassmates.However,justabouttenminutesafterthegamestarted,onememberofourfootballteamgotinjuredandcouldnolongerplay.Theothermemberslookedworried.Thenoneofthemcametomeandasked,“Canyouplay？”Atfirst,Ishookmyhead,butthenInodded.“Great!Comeandplay，”hesaid.Ifollowedhim,havingnoideaatallwhattodo.Tomyjoy,heaskedmetoplayindefense(防守).DefensewasmyfavoritebecauseIfounditmorefunandlesscomplicated(复杂的).Thenthegamebeganagain.Thereweren'talotofbigkidsontheoffensiveline(攻击线)oftheotherteamandIsuddenlygainedsomeself­confidence.Aboutfiveminuteslater,theballwaskickedtowardtheguard.Ithoughtitwasagoodopportunityforme.Iquicklyranpasttheguardandgottheball.Whentheguardcametotheoffensiveline,Ikickedtheball.Iscoredandallmyclassmatescheered.Youmaynotbelieveit,butIscoredtwicethattime.Thefinalscorewas6－2andwewon.MyteammatesthoughtthatIdidverywellandnoneofthembelievedIhadn'tplayedinagamebefore.Thatgamereallychangedme.Iamareallyconfidentpersonnowandoftenplayfootballgameswithmyteammates.语篇解读：本文是一篇记叙文。作者喜欢足球，但由于缺乏自信从不敢上场参加球赛，一次偶然的机会让作者大显身手。1.Whydidn'ttheauthorplaysportswithothersbefore?A.Hewasn'tinterestedinsports.B.Hewasn'tpopularwithothers.C.Hecouldn'taffordtimeforsports.D.Hewasn'tconfidentabouthisability.解析：选D细节理解题。根据第一段第三句“Ilackedself­confidenceandIdoubtedifIcoulddowellinateam,whichwaswhyIhardlydidsportstogetherwithothers.”可知作者因为缺少自信，而不敢上场参赛。2.Seeingtheauthorshakinghisheadatfirst,hisclassmatemostprobablyfelt.A.excited B.boringC.anxious D.angry解析：选C细节理解题。根据第二段中的“Theothermemberslookedworried.”可知，球场上球员受伤，若没人替补，其他球员自然是着急万分。3.Weinferthatafterplayingthegame,theauthormostprobably.A.gotnervousaboutwatchingfootballgamesB.decidedtobecomeafull­timefootballplayerC.wasconsideredthebestfootballplayeratschoolD.fellinlovewithjoiningothersinplayingfootball解析：选D推理判断题。根据最后一段可判断出：自此作者有了自信，与他人一起积极参与球赛活动。4.Whatwouldbethebesttitleforthetext?A.Myfirstfootballgame.B.Mymostunforgettableexperience.C.Mywayoffindingself­confidence.D.Mywayofscoringatfootballgames.解析：选A标题归纳题。作者开始由于缺乏自信，从不敢参加比赛。一次偶然的机会，他大显身手，从此，有了参赛的自信，经常与他人奔跑在赛场上。本文以赛场为主线，介绍了作者第一次参赛前后的巨大变化，故“Myfirstfootballgame”作为题目较为合适。BAmericaisamobilesociety.FriendshipsbetweenAmericanscanbecloseandreal,yetdisappearsoonifsituationschange.Neithersidefeelshurtbythis.BothmayexchangeChristmasgreetingsforayearortwo,perhapsafewlettersforawhile—thennomore.Ifthesametwopeoplemeetagainbychance,evenyearslater,theypickupthefriendship.ThiscanbequitedifficultforusChinesetounderstand,becausefriendshipsbetweenusflowermoreslowlybutthenmaybecomelifelongfeelings,extending(延伸)sometimesdeeplyintobothfamilies.Americansarereadytoreceiveusforeignersattheirhomes,sharetheirholidays,andtheirhomelife.Theywillenjoywelcomingusandbepleasedifweaccepttheirhospitality(好客)easily,buttrulycan'tmanagethetimetodoagreatdealwithavisitoroutsidetheirdailyroutine.Theywillprobablyexpectustogetourselvesfromtheairporttoourownhotelbybus.Andtheyexpectthatwewillphonethemfromthere.Oncewearriveattheirhomes,thewelcomewillbefull,warmandreal.Wewillfindourselvestreatedhospitably.AnotherdifficultpointforusChinesetounderstandAmericansisthatalthoughtheyincludeuswarmlyintheirpersonaleverydaylives,theydon'tshowtheirpolitenesstousifitrequiresagreatdealoftime.Thisisusuallytheoppositeofthepracticeinourcountrywherewemaybegenerouswithourtime.Sometimes,we,ashosts,willappearatairportseveninthemiddleofthenighttomeetafriend.Wemaytakedaysofftoactasguidestoourforeignfriends.TheAmericans,however,expresstheirwelcomeusuallyathomes.FortheAmericans,itisoftenconsideredmorefriendlytoinviteafriendtotheirhomesthantogotorestaurants,exceptforpurebusinessmatters.Soaccepttheirhospitalityathome!语篇解读：本文是一篇说明文。本文叙述了美国人和中国人对友谊的不同看法。美国人喜欢在家里招待朋友，即使多年不见仍然是好朋友，不像中国人一样会花很多时间去车站接，或者抽出很多时间陪他们。5.WhereareweexpectedtocallourAmericanfriendsifwegotherebyplane?A.Onthebus. B.Attheairport.C.Neartheirhome. D.Atourownhotel.解析：选D细节理解题。根据第二段中的“Theywillprobablyexpectus...themfromthere.”可知，如果我们乘飞机去那里，我们应该从我们住的宾馆给美国朋友打电话。故选D。6.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.FriendshipsbetweenAmericansusuallylastforalltheirlives.B.Americansalwaysshowtheirwarmtheveniftheyareverybusy.C.Americanswillcontinuetheirfriendshipsagainevenafteralongbreak.D.FriendshipsbetweenAmericansusuallyextenddeeplyintotheirfamilies.解析：选C细节理解题。根据第一段中的“BothmayexchangeChristmasgreetings...theypickupthefriendship.”可知，美国人即使在很长一段时间的中断之后仍会继续他们的友谊。故选C。7.Whichisthetypical(典型的)wayofAmericanhospitality?A.Treatingfriendsathome.B.Sharingeverythingtheyhave.C.Takingdaysofftobewithfriends.D.Meetingfriendsattheairportatmidnight.解析：选A细节理解题。根据倒数第二段最后一句“TheAmericans,however,expresstheirwelcomeusuallyathomes.”可知，在家里款待朋友是典型的美式待客之道。故选A。8.What'sthebesttitleforthetext?A.Americans'hospitalityB.ThemobilityofAmericansC.FriendshipsbetweenChineseD.Americans'viewsoffriendships解析：选D标题归纳题。根据文章第一段中“Americaisamobilesociety.FriendshipsbetweenAmericanscanbecloseandreal,yetdisappearsoonifsituationschange.”可知，文章主要介绍美国人对友谊的见解，故选D。CWhensnack­foodbusinessmenstartedsellingfat­freeproductsbackinthe80s,theyreallyachievedsuccess.Consumerswereinterestedinavoidingfatbecauseitcausedheartproblemsandmadethemfat.Sothenonfatfoodswereadieter'sdream!Fat­freechipsanddairyproductsflewofftheshelves.However,asitturnedout,notmanypeoplebecameslimandhealthyfromgoingonfat­freediets.Infact,noteatingfatseemedtocausemorehealthproblemsinstead.Therearemanynaturallyfat­freefoods.Fruitsandvegetablesareonthetopofthelist.They'reusuallylowincalories(卡路里)andarefilledwithbeneficialvitamins(维生素).That'snotthecasewithprocessedfat­freefood.Theproblemwithfat­freepackagedfoodisthatfatmakesfoodtastegood.Withallthefattakenaway,ittasteslikecardboard.So,theproducershavetoaddintoallkindsofthingstokeepthetaste—likesugar,saltandartificialflavors(人造香精).Therefore,processedfat­freefoodscanactuallyendupcontainingmorecaloriesthanthefull­fatfoods.Fruitcanbehighincaloriesandsugar,too,butyou'regettingothernutrients(营养物)alongwithit.Processedfat­freefoodsdon'thavealotofotherthings.Weknownowthatallfatisnotevil.Fathelpscontrolyournervoussystemandencouragesbonehealth.Fat­freesaladcanactuallymakeyouloseyourabilitytoprocessallthegoodnutrientsinit.Whenyoubuyafat­freeproductinthestore,takeasecondtocheckthenutrientinformationonthepackage.Ifitcontainssugar,saltorartificialflavors—orhasmorecaloriesthanthefull­fatversion—putitbackontheshelf.Mostofthetime,you'dbebettereatingthefull­fatversion,whichtastesbetterandwillsatisfyyousooner—aslongasyoudon'teatthewholebox!语篇解读：本文是一篇说明文。文章主要阐述了脱脂加工食品的情况以及它可能引起的健康问题。9.Whatisthedifferencebetweenprocessedfat­freeproductsandnaturallyfat­freefoods?A.Naturallyfat­freefoodseasilymakepeoplefat.B.Processedfat­freefoodsareusuallylowincalories.C.Processedfat­freefoodsareusuallyrichinvitamins.D.