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安全验证

时间：2023-11-16 15:44:57 下载该word文档

2021年南宁市第二十一中学高三英语下学期期末试题及答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AThe“laughoutloud”faceisofficiallytheworld’smostpopularemoji,accordingtoresearchersfromAdobe(ADBEwhosurveyed7,000usersacrosstheUnitedStates,theUnitedKingdom,Germany,France,Japan,Australia,andSouthKorea.The“thumbsup”emojicameinsecond,followedbythe“redheart”emoji.Theflirtatious“winkandkiss”and“sadfacewithatear”emojisrespectivelyroundedoutthetopfive.ThesoftwaremakeronThursdayreleasedthefindingsfromits2021GlobalEmojiTrendReportaheadofWorldEmojiDayonSaturday.Adobe’slatestEmojiTrendreportalsoexaminedthethreemostmisunderstoodemojisintheworld.The“eggplant”symboledgedoutthe“peach”andthe“clown”emojisrespectivelyasthemostconfusingforusers.Thevastmajorityofemojiusers(90%believethemodern—dayhieroglyphsmakeiteasierforthemtoexpressthemselves.Eighty—ninepercentofrespondentssaidemojissimplifycommunicatingacrosslanguagebarriers.And67%saidtheythinkpeoplewhouseemojisarefriendlier,funnierandcoolerthanthosewhodon’t.Aslightmajorityofrespondentssaidtheyaremorecomfortableexpressingemotionsthroughemojisthantalkingonthephoneorin—person.Morethanhalfofglobalemojiusers(55%saidusingemojisincommunicationshaspositivelyimpactedtheirmentalhealth.Seventy—sixpercentofthosesurveyedsaidemojisareanimportantcommunicationtoolforcreatingunity,respectandunderstanding.And88%saidtheyfeelmoreempathetictowardpeoplewhouseemojis.1.Whatarethethreemostpopularemojisaccordingtothepassage?A.clownthumbsuplaughoutloudB.laughoutloudthumbsupwinkandkissC.laughoutloudthumbsupredheartD.thumbsupredheartsadfacewithatear2.Whichemojiisthemostconfusingoneforusers?A.Peach.B.Eggplant.C.Clown.D.Winkandkiss.3.Whichofthefollowingbestdescribestheattitudeofmostpeoplesurveyedtoemojis?
A.Favorable.B.Passive.C.Indifferent.D.Doubtful.BRememberwhenyourmomtoldyounottoeattoomanycandybarsorsweetsbecausetheycancausetoothdecay(蛀牙?However,itturnsoutthatchocolatecanbemoresalutarytoyourteeththanyoumightexpect.Recentstudiesshowthatchocolatecaneffectivelyfightagainsttoothdecay,asifweneedanotherexcusetoeatchocolate.Chocolateoffersprotectionlikefluoride,amainingredientinmosthouseholdtoothpastes.Notonlydoeschocolateprotectourteeth,butitcandosoveryeffectively.Studiesshowthatchocolatehascompoundsthatprovidestrongprotectionforteeth.Oneofthecompoundsinchocolate,CBH,isshowntoprotectevenmoreeffectivelythanfluoride.Toothdecayhappenswhenbacteriaworktoturnsugarintoacidsinourmouth.Thisiswhyeatingfoodswithhighsugarcontentcanleadtomoretoothdecay.Thecompoundsinchocolate,however,areanti-bacteriaandcanfightagainstbacteriainyourmouth.TheCBHcompoundinparticularalsoworkstostrengthentoothenamel(牙釉质,andprotectsagainsttoothdecay.Doesthismeanyoucancatasmuchchocolateasyouwantwithoutworryingaboutyourteeth?Itdependsonthetypesofchocolatethatyoulike.Theprotectiveeffectofchocolateismosteffectivewhenyouchewoncocoabeans.Ofcourse,thisoptionisnotveryappealingto;mostpeople.Amoretastyoptionistochoosedarkchocolatewithlittlesugarcontent,ideallynomorethan6to8gramsperserving.Forothertypesofchocolatewithhighersugarcontent,theeffectwillbelessened.However,becauseoftheprotectivecompounds,itisstillbetterforyourteeththanothersweetsanddessertscontainingthesameamountofsugar.4.Theword“salutary”inparagraph1means?A.Beneficial.B.Harmful.C.Familiar.D.Useless.5.WhatcanweknowaboutthecompoundCBHinchocolate?A.Itcanhelpchocolatecuretoothdecay.B.Itcaneffectivelystopteethfromdecaying.C.Itmayprotectteethbetterthantoothpastesdo.D.Itmaysoonreplacemosthouseholdtoothpastes.6.Howdoeschocolatefighttoothdecay?A.Bybreakingdownacids.B.Bybuildingupcompounds.C.Byfixinguptoothenamel.D.Byfightingagainstbacteria.

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