2026年北京市第四中学七年级英语单元测试卷答案解析及答案

2026年北京市第四中学七年级英语单元测试卷答案解析及答案第1页共1页2026年北京市第四中学七年级英语单元测试卷答案解析及答案一、单项选择题（共10小题，每题2分）1.WhatisthenameofthecapitalcityofFrance?A.LondonB.BerlinC.ParisD.Madrid参考答案：C2.Whichwordmeans"happy"inEnglish?A.SadB.AngryC.HappyD.Sleepy参考答案：C3.Whatistheoppositeof"big"?A.SmallB.TallC.LongD.Fast参考答案：A4.Ifyouwanttogotothelibrary,whichwordshouldyouuse?A.SchoolB.HospitalC.ParkD.Library参考答案：D5.Howdoyousay"thankyou"inEnglish?A.GoodbyeB.HelloC.ThankyouD.Sorry参考答案：C6.Whatisthepluralformof"child"?A.ChildrenB.ChildsC.ChildesD.Child参考答案：A7.Whichsentenceiscorrect?A.IgotoschoolonMonday.B.IgoestoschoolonMonday.C.IgoingtoschoolonMonday.D.IamgotoschoolonMonday.参考答案：A8.Whatistheweatherliketoday?Itis______.A.sunnyB.rainyC.cloudyD.alloftheabove参考答案：D9.Whichwordisaverb?A.RunB.RunningC.RanD.Runs参考答案：A10.Whatisyourfavoritecolor?A.BlueB.GreenC.RedD.Yellow参考答案：C二、填空题（共10小题，每题2分）1.Theboy______toschooleverydaybybus.参考答案：goes2.Mysisteristhree______thanme.参考答案：years3.Therearemanybooksonthe______.参考答案：desk4.Shelikestoplaythepiano,butshedoesn'tliketoplaythe______.参考答案：guitar5.WearegoingtovisittheGreatWallnext______.参考答案：weekend6.Thisismy______pen.It'sblue.参考答案：own7.Thecatissleepingonthe______.参考答案：sofa8.Iusuallyhavebreakfastat______o'clock.参考答案：seven9.Whattimeisitnow?It's______o'clock.参考答案：nine10.Myfatherisa______.Heworksinafactory.参考答案：worker三、判断题（共10小题，每题2分）1.ThecapitalofFranceisLondon.参考答案：×2.Waterboilsat100degreesCelsiusatsealevel.参考答案：√3.TheGreatWallofChinaisvisiblefromspacewiththenakedeye.参考答案：×4.TheEarthisflat.参考答案：×5.Thespeedoflightinavacuumisapproximately299,792kilometerspersecond.参考答案：√6.Dinosaursstillexisttoday.参考答案：×7.TheEiffelTowerwasoriginallyintendedforBarcelona,Spain,buttheprojectwasrejected.参考答案：√8.TheMonaLisawaspaintedbyLeonardodaVinci.参考答案：√9.Thehumanbrainisthelargestorganinthehumanbody.参考答案：√10.ThePyramidsofGizawerebuiltbytheancientEgyptians.参考答案：√四、简答题（共8小题，每题2分）1.Whatisthedifferencebetween"therebe"and"have"?参考答案：Therebeisusedtointroducetheexistenceofsomething,whilehaveisusedtoindicatepossessionorownership.2.Howdoyouusethepresentcontinuoustensetodescribeanactionhappeningrightnow?参考答案：Thepresentcontinuoustenseisusedtodescribeactionsthatarehappeningatthemomentofspeakingoractionsthataretemporaryandongoing.Forexample,"Iameatingdinnernow."3.Explainthefunctionoftheword"also"inasentence.参考答案：Theword"also"isusedtoaddmoreinformationtoasentence,indicatingthatsomethingelseistrueorhappeninginadditiontowhathasalreadybeenmentioned.Forexample,"Heistired,andhealsohasaheadache."4.ListthreecommonirregularverbsinEnglishandtheirpastforms.参考答案：ThreecommonirregularverbsinEnglishare"go","eat",and"write".Theirpastformsare"went","ate",and"wrote"respectively.5.Whatdoesthephrase"lookforwardto"meanandhowisitused?参考答案："Lookforwardto"meanstofeelhappyandexcitedaboutsomethingthatisgoingtohappeninthefuture.Itisfollowedbyanounoragerund.Forexample,"Ilookforwardtoseeingyounextweek."6.Describethedifferencebetween"apieceofcake"and"apieceofadvice".参考答案："Apieceofcake"meanssomethingthatisveryeasytodo,while"apieceofadvice"referstoasuggestionorrecommendation.Forexample,"Thetestwasapieceofcake"and"Shegavemeapieceofadvice."7.HowwouldyouaskforthetimeinEnglish?参考答案：ToaskforthetimeinEnglish,youcansay"Whattimeisit?"or"Couldyoutellmethetime?"8.WhyisitimportanttolearnvocabularyinEnglish?参考答案：ItisimportanttolearnvocabularyinEnglishbecausealargevocabularyhelpsyouunderstandandexpressyourselfmoreclearly.Italsoimprovesyourreading,writing,listening,andspeakingskills.五、应用题（共8小题，每题3分）1.某英语兴趣小组计划组织一次主题为“MyFavoriteSeason”的英语演讲比赛。请根据以下提示，用英语写一篇短文，介绍你最喜欢的季节，并说明原因。不少于60词。-Myfavoriteseasonisautumn.-Theweatheriscoolandcomfortable.-Icangohikingandenjoythecolorfulleaves.参考答案：Myfavoriteseasonisautumn.Ilikeautumnbecausetheweatheriscoolandcomfortable.Icangohikingandenjoythecolorfulleaves.Theairisfresh,andthedaysareshorter,whichmakesmefeelrelaxed.Ialsolovetheharvestseasonwhenfruitsandvegetablesareripe.Autumnismyfavoriteseasonbecauseitbringsmejoyandpeace.2.假设你是李华，你的朋友王明最近因为考试没考好而感到很沮丧。请你用英语写一封短信，安慰他，并鼓励他不要灰心，继续努力。不少于50词。参考答案：DearWangMing,Iknowyouarefeelingsadbecauseofyourrecentexam.Pleasedon'tbetooupset.Everyonemakesmistakes,andit'simportanttolearnfromthem.Youshouldbelieveinyourselfandkeepworkinghard.Remember,practicemakesperfect.Iamheretosupportyou,sodon'thesitatetoaskforhelp.Staypositiveandkeepgoing!3.阅读以下关于环境保护的倡议书，请用英语写一封短信，表达你对倡议书的看法，并提出至少两条具体的建议。不少于60词。-Subject:ProtectOurEnvironment-Weshouldreducewasteandreusematerials.-Weshouldplantmoretreesandprotectnature.参考答案：Subject:Re:ProtectOurEnvironment4.假设你要参加一个关于“科技与生活”的英语辩论赛，你的观点是科技让我们的生活更便利。请用英语写一篇简短发言稿，列出至少三点支持你观点的理由。不少于70词。参考答案：Ladiesandgentlemen,Today,Iamheretoarguethattechnologymakesourlivesmoreconvenient.First,technologyhelpsuscommunicatewithotherseasilythroughsmartphonesandsocialmedia.Second,technologymakesshoppingmoreconvenientbyallowingustobuythingsonline.Third,technologyimprovesourhealthbyprovidingfitnesstrackersandhealthapps.Inconclusion,technologyhasgreatlyimprovedourlivesinmanyways,andweshouldembraceit.5.阅读以下关于健康饮食的短文，请用英语写一篇短文，介绍你平时如何保持健康饮食，并提出至少一条改进建议。不少于60词。-Ahealthydietisimportantforourhealth.-Weshouldeatmorefruitsandvegetables.-Weshouldavoideatingtoomuchjunkfood.参考答案：Ahealthydietisveryimportantforourhealth.Iusuallyeatabalanceddiet,includingplentyoffruitsandvegetables,wholegrains,andleanproteins.Ialsotrytodrinkenoughwaterandavoideatingtoomuchjunkfood.Toimprovemydiet,Isuggestjoiningacookingclasstolearnhowtopreparehealthymeals.Thiswillhelpmemakebetterfoodchoicesandmaintainahealthylifestyle.6.假设你要写一篇关于你家乡的英语文章，介绍你家乡的特色。请用英语写一篇短文，介绍你家乡的一个特色景点，并说明为什么你喜欢它。不少于70词。参考答案：Myhometownisabeautifulplacewithmanyinterestingattractions.Oneofthemostfamouslandmarksistheancienttemple.Itislocatedinthecenterofthecityandhasarichhistory.Thetempleisknownforitsstunningarchitectureandpeacefulatmosphere.Iloveitbecauseitremindsmeofmychildhoodandthetraditionsofmyculture.Thetempleisnotonlyatouristattractionbutalsoasymbolofourheritage.ItisaplacewhereIfeelconnectedtomyrootsandproudofmyhometown.7.阅读以下关于友谊的短文，请用英语写一篇短文，谈谈你对友谊的理解，并分享一个你与朋友之间发生的难忘故事。不少于60词。-Friendshipisimportantinourlife.-Weshouldbehonestandkindtoourfriends.参考答案：Friendshipisaveryimportantpartofourlife.Itbringsusjoy,support,andlove.Ibelievethattruefriendsarerareandshouldbecherished.Amemorablestoryinmylifewithafriendiswhenwehelpedeachotherduringadifficulttime.Wewerebothgoingthroughtoughexams,andweencouragedeachothertostudyhardandnevergiveup.Intheend,webothpassedwithgoodgrades.Thisexperiencetaughtmethevalueoffriendshipandthepowerofteamwork.Iamgratefultohavesuchagreatfriend.8.假设你要为学校图书馆设计一个英语海报，鼓励同学们多读书。请用英语写一篇短文，介绍海报的内容，并提出至少两条具体的建议。不少于60词。-Thepostershouldhaveacatchytitle.-Weshouldreadmorebookstoimproveourknowledge.参考答案：Thepostershouldhaveacatchytitlelike"ReadMore,LearnMore!"Itshouldincludeacolorfulimageofbookstoattractattention.Additionally,itshouldhaveabriefmessageencouragingstudentstoreadmorebookstoimprovetheirknowledgeandimagination.Ialsosuggestorganizingabookfairintheschoollibrarytopromotereading.Thiswillcreateafunandengagingenvironmentforstudentstoexplorenewbooksandauthors.Let'smakereadingaenjoyablepartofourlives!标准答案与解析一、单项选择题1.参考答案：C解析：本题考查国家首都知识。伦敦是英国首都，柏林是德国首都，巴黎是法国首都，马德里是西班牙首都。题干问法国的首都，故正确答案为C。A、B、D选项均为其他欧洲国家首都，不符合题意。2.参考答案：C解析：本题考查基础情绪词汇。A选项意为“悲伤的”，B选项意为“生气的”，C选项意为“快乐的”，D选项意为“困倦的”。题干问“快乐”对应的英文单词，故正确答案为C。A、B、D选项均为负面或与情绪无关的词汇，不符合题意。3.参考答案：A解析：本题考查反义词知识。A选项意为“小的”，B选项意为“高的”，C选项意为“长的”，D选项意为“快的”。题干问“big”的反义词，故正确答案为A。B、C、D选项均不是“big”的反义词，不符合题意。4.参考答案：D解析：本题考查地点词汇。A选项意为“学校”，B选项意为“医院”，C选项意为“公园”，D选项意为“图书馆”。题干问去图书馆应该用什么词，故正确答案为D。A、B、C选项均为其他场所，不符合题意。5.参考答案：C解析：本题考查基础礼貌用语。A选项意为“再见”，B选项意为“你好”，C选项意为“谢谢”，D选项意为“对不起”。题干问“谢谢”的英文说法，故正确答案为C。A、B、D选项均为其他礼貌用语，不符合题意。6.参考答案：A解析：本题考查名词复数规则。A选项意为“孩子们”，B选项错误，C选项错误，D选项意为“孩子”。题干问“child”的复数形式，根据英语名词复数规则，以辅音字母+y结尾的名词变复数时，变y为i加es，故正确答案为A。B、C选项形式错误，D选项为单数形式，不符合题意。7.参考答案：A解析：本题考查动词时态和语态。A选项结构正确，表示一般现在时，B选项动词形式错误，C选项动词形式错误，D选项动词形式错误。题干问哪个句子正确，故正确答案为A。B、C、D选项均为动词形式错误，不符合题意。8.参考答案：D解析：本题考查天气词汇。A选项意为“晴朗的”，B选项意为“下雨的”，C选项意为“多云的”，D选项意为"alloftheabove"，意为“以上都是”。题干问今天天气怎么样，可以有多种情况，故正确答案为D。A、B、C选项仅表示一种天气情况，不符合题意。9.参考答案：A解析：本题考查动词形式。A选项意为“跑步”，B选项为现在分词，C选项为过去式，D选项为第三人称单数形式。题干问哪个是动词，故正确答案为A。B、C、D选项均为动词的其他形式，不符合题意。10.参考答案：C解析：本题考查个人喜好表达。A选项意为“蓝色”，B选项意为“绿色”，C选项意为“红色”，D选项意为“黄色”。题干问你的favoritecolor是什么，故正确答案为C。A、B、D选项均为其他颜色，不符合题意。二、填空题1.参考答案：goes解析：本题考查动词的第三人称单数形式。根据句意“这个男孩每天乘公交车去上学”，主语是Theboy，是第三人称单数，动词go需要加-s变成goes。空格处应填goes。2.参考答案：years解析：本题考查比较级。根据句意“我妹妹比我大三岁”，than后面需要填入可数名词复数形式，表示年龄差。years是year的复数形式，符合题意。空格处应填years。3.参考答案：desk解析：本题考查名词辨析。根据句意“桌子上有很多书”，onthe后面需要填入表示地点的名词。desk指书桌，符合题意。空格处应填desk。4.参考答案：guitar解析：本题考查名词辨析。根据句意“她喜欢弹钢琴，但不喜欢弹吉他”，playthepiano指弹钢琴，playtheguitar指弹吉他，符合题意。空格处应填guitar。5.参考答案：weekend解析：本题考查名词辨析。根据句意“我们下周要去长城玩”，next后面需要填入表示时间的名词。weekend指周末，符合题意。空格处应填weekend。6.参考答案：own解析：本题考查形容词性物主代词。根据句意“这是我的钢笔。它是蓝色的”，my后面需要填入形容词性物主代词，表示“自己的”。own是own的形容词性形式，符合题意。空格处应填own。7.参考答案：sofa解析：本题考查名词辨析。根据句意“猫正在沙发上睡觉”，onthe后面需要填入表示地点的名词。sofa指沙发，符合题意。空格处应填sofa。8.参考答案：seven解析：本题考查时间表达。根据句意“我通常在七点钟吃早餐”，at后面需要填入表示时间的数字。seven是数字七，符合题意。空格处应填seven。9.参考答案：nine解析：本题考查时间表达。根据句意“现在几点了？九点钟。”，It's后面需要填入表示时间的数字。nine是数字九，符合题意。空格处应填nine。10.参考答案：worker解析：本题考查名词辨析。根据句意“我父亲是一名工人。他在工厂工作”，a后面需要填入名词，表示职业。worker指工人，符合题意。空格处应填worker。三、判断题1.参考答案：×解析：ThecapitalofFranceisParis,notLondon.ThisstatementisincorrectbecausethecapitalcityofFranceisParis,whichisawell-knownfact.LondonisthecapitaloftheUnitedKingdom,notFrance.2.参考答案：√解析：Waterboilsat100degreesCelsiusatsealevelunderstandardatmosphericpressure.Thisisascientificallyprovenfactandiswidelyacceptedinthescientificcommunity.Theboilingpointofwatercanvarywithchangesinatmosphericpressure,butatsealevel,itisindeed100degreesCelsius.3.参考答案：×解析：TheGreatWallofChinaisnotvisiblefromspacewiththenakedeye.Thisstatementisfalsebecause,despiteitsimpressivesize,theGreatWallisnotvisiblefromlowEarthorbitwithouttheaidoftelescopes.ThevisibilityoftheGreatWallfromspacehasbeenacommonmisconception,butitisnotsupportedbyscientificevidence.4.参考答案：×解析：TheEarthisnotflat.ThisstatementisincorrectbecausetheEarthisanoblatespheroid,meaningitisroughlysphericalbutslightlyflattenedatthepolesandbulgingattheequator.Thisfacthasbeenknownforcenturiesandissupportedbyextensivescientificevidence,includingsatelliteimagesandastronomicalobservations.5.参考答案：√解析：Thespeedoflightinavacuumisapproximately299,792kilometerspersecond.Thisisawell-establishedscientificconstantandisafundamentalpartofthetheoryofrelativityproposedbyAlbertEinstein.Thespeedoflightisacriticalvalueinphysicsandisusedinnumerouscalculationsandequations.6.参考答案：×解析：Dinosaurswentextinctapproximately66millionyearsagoduringtheCretaceous-Paleogeneextinctionevent.Thisstatementisfalsebecauseallnon-aviandinosaursareextinct,andtheonlylivingdinosaursarebirds,whichevolvedfromagroupoftheropoddinosaurs.TheextinctionofdinosaurswasasignificanteventinEarth'shistory,buttheydonotexisttodayintheiroriginalform.7.参考答案：√解析：TheEiffelTowerwasoriginallyintendedforBarcelona,Spain,buttheprojectwasrejected.ThisstatementistruebecausetheprojectwasproposedbytheengineerGustaveEiffelin1881,butthedesignwasrejectedbytheCatalangovernmentduetoitsunusualappearance.TheEiffelTowerwaseventuallybuiltinParis,France,andhassincebecomeaniconicsymbolofthecity.8.参考答案：√解析：TheMonaLisawaspaintedbyLeonardodaVinci.ThisstatementiscorrectbecausetheMonaLisaisoneofthemostfamouspaintingsintheworldandiswidelyattributedtotheItalianRenaissanceartistLeonardodaVinci.Thepaintingisbelievedtohavebeencreatedbetween1503and1506andiscurrentlyhousedintheLouvreMuseuminParis.9.参考答案：√解析：Thehumanbrainisthelargestorganinthehumanbody.Thisstatementistruebecausethebrainweighsapproximately1.3to1.4kilogramsandisresponsibleforcontrollingvariousfunctionsofthebody.Thebrainissignificantlylargerthanotherorgans,suchastheheartorliver,andplaysacrucialroleincognition,emotion,andmovement.10.参考答案：√解析：ThePyramidsofGizawerebuiltbytheancientEgyptians.ThisstatementiscorrectbecausethePyramidsofGizaareoneofthemostfamoushistoricallandmarksintheworldandwereconstructedduringtheFourthDynastyoftheOldKingdomofEgypt.Thesepyramidswerebuiltastombsforpharaohsandareconsideredarchitecturalmarvelsoftheancientworld.四、简答题1.参考答案：Therebeisusedtointroducetheexistenceofsomething,whilehaveisusedtoindicatepossessionorownership.解析：Thequestionasksforthedifferencebetween"therebe"and"have"."Therebe"isusedtostatethatsomethingexistsatacertainplaceortime,forexample,"Thereisabookonthetable."Ontheotherhand,"have"isusedtoshowpossessionorownership,suchas"Ihaveapen."ThisquestionteststheunderstandingofbasicgrammarstructuresinEnglish.2.参考答案：Thepresentcontinuoustenseisusedtodescribeactionsthatarehappeningatthemomentofspeakingoractionsthataretemporaryandongoing.Forexample,"Iameatingdinnernow."解析：Thequestionasksabouttheusageofthepresentcontinuoustense.Thistenseisformedbyusingtheverb"tobe"inthepresenttenseplusthe"-ing"formofthemainverb.Itiscommonlyusedtodescribeactionshappeningrightnoworactionsthatareinprogressbutnotnecessarilyattheexactmomentofspeaking.Thisquestionassessesthestudent'sabilitytousethepresentcontinuoustensecorrectly.3.参考答案：Theword"also"isusedtoaddmoreinformationtoasentence,indicatingthatsomethingelseistrueorhappeninginadditiontowhathasalreadybeenmentioned.Forexample,"Heistired,andhealsohasaheadache."解析：Thequestionasksaboutthefunctionoftheword"also"inasentence."Also"isanadverbthatisusedtoconnectadditionalinformationortoindicatethatsomethingelseistrueorhappening.Itisoftenplacedafterthefirstpartofthesentenceoratthebeginningofanewsentence.Thisquestionteststhestudent'sunderstandingofadverbsandtheirusageinsentences.4.参考答案：ThreecommonirregularverbsinEnglishare"go","eat",and"write".Theirpastformsare"went","ate",and"wrote"respectively.解析：Thequestionasksforthreecommonirregularverbsandtheirpastforms.Irregularverbsareverbsthatdonotfollowthestandardpatternforformingtheirpasttenseandpastparticipleforms."Go"becomes"went","eat"becomes"ate",and"write"becomes"wrote".Thisquestionassessesthestudent'sknowledgeofirregularverbsandtheirforms.5.参考答案："Lookforwardto"meanstofeelhappyandexcitedaboutsomethingthatisgoingtohappeninthefuture.Itisfollowedbyanounoragerund.Forexample,"Ilookforwardtoseeingyounextweek."解析：Thequestionasksaboutthemeaningandusageofthephrase"lookforwardto".Thisphraseisusedtoexpressanticipationorexcitementaboutafutureeventorsituation.Itisfollowedbyanounoragerund,notato-infinitive.Thisquestionteststhestudent'sunderstandingofphrasalverbsandtheirusageinsentences.6.参考答案："Apieceofcake"meanssomethingthatisveryeasytodo,while"apieceofadvice"referstoasuggestionorrecommendation.Forexample,"Thetestwasapieceofcake"and"Shegavemeapieceofadvice."解析：Thequestionasksforthedifferencebetween"apieceofcake"and"apieceofadvice"."Apieceofcake"isanidiomthatmeanssomethingisveryeasytodo,while"apieceofadvice"referstoasuggestionorrecommendationgivenbysomeone.Thisquestionassessesthestudent'sunderstandingofidiomsandtheirmeanings.7.参考答案：ToaskforthetimeinEnglish,youcansay"Whattimeisit?"or"Couldyoutellmethetime?"解析：ThequestionaskshowtoaskforthetimeinEnglish.Commonwaystoaskforthetimeinclude"Whattimeisit?"and"Couldyoutellmethetime?"Thisquestionteststhestudent'sabilitytousebasicEnglishphrasesforeverydaysituations.8.参考答案：ItisimportanttolearnvocabularyinEnglishbecausealargevocabularyhelpsyouunderstandandexpressyourselfmoreclearly.Italsoimprovesyourreading,writing,listening,andspeakingskills.解析：ThequestionaskswhyitisimportanttolearnvocabularyinEnglish.AgoodvocabularyisessentialforeffectivecommunicationinEnglish.Ithelpsyouunderstandwhatyouread,writemoreeffectively,listenandspeakmoreclearly.Thisquestionassessesthestudent'sunderstandingoftheimportanceofvocabularyinlanguagelearning.五、应用题1.参考答案：Myfavoriteseasonisautumn.Ilikeautumnbecausetheweatheriscoolandcomfortable.Icangohikingandenjoythecolorfulleaves.Theairisfresh,andthedaysareshorter,whichmakesmefeelrelaxed.Ialsolovetheharvestseasonwhenfruitsandvegetablesareripe.Autumnismyfavoriteseasonbecauseitbringsmejoyandpeace.解析：本题考查学生的写作能力，要求学生根据提示写一篇关于最喜欢的季节的短文。学生需要根据提示词，用英语表达自己对秋天喜欢的理由，如天气凉爽舒适、可以远足、欣赏五彩缤纷的叶子等。答案中包含了这些要点，并进行了适当的扩展，使文章内容更加丰富。解析中强调了学生需要根据提示词进行写作，并给出了写作的思路和要点。2.参考答案：DearWangMing,Iknowyouarefeelingsadbecauseofyourrecentexam.Pleasedon'tbetooupset.Everyonemakesmistakes,andit'simportanttolearnfromthem.Youshouldbelieveinyourselfandkeepworkinghard.Remember,practicemakesperfect.Iamheretosupportyou,sodon'thesitatetoaskforhelp.Staypositiveandkeepgoing!解析：本题考查学生的写作能力，要求学生根据情境写一封安慰朋友的短信。学生需要表达对朋友的关心和理解，并鼓励他不要灰心，继续努力。答案中包含了这些要点，并进行了适当的扩展，使短信内容更加感人。解析中强调了学生需要根据情境进行写作，并给出了写作的思路和要点。3.参考答案：Subject:Re:ProtectOurEnvironmentIagreewithyourinitiativetoprotectourenvironment.It'simportanttoreducewasteandreusematerialstosaveresources.Weshouldalsoplantmoretreesandprotectnaturetoimproveairqualityandprovidehabitatsforwildlife.Additionally,Isuggestorganizingcommunityclean-upeventstoraiseawarenessandencouragemorepeopletoparticipate.Let'sworktogethertomakeadifference!解析：本题考查学生的写作能力，要求学生根据倡议书写一封短信，表达对倡议书的看法，并提出建议。学生需要表达对环境保护的支持，并提出具体的建议。答案中包含了这些要点，并进行了适当的扩展，使短信内容更加完整。解析中强调了学生需要根据倡议书进行写作，并给出了写作的思路和要点。4.参考答案：Ladiesandgentlemen,Today,Iamheretoarguethattechnologymakesourlivesmoreconvenient.First,technologyhelpsuscommunicatewithotherseasilythroughsmartphonesandsocialmedia.Second,technologymakesshoppingmoreconvenientbyallowingustobuythingsonline.Third,technologyimprovesourhealthbyprovidingfitnesstrackersandhealthapps.Inconclusion,technologyhasgreatlyimprovedourlivesinmanyways,andweshouldembraceit.解析：本题考查学生的写作能力，要求学生根据情境写一篇简短发言稿，支持科技让我们的生活更便利的观点。学生需要列出支持自己观点的理由，并进行适当的扩展。答案中包含了这些要点，并进行了适当的扩展，使发言稿内容更加有说服力。解析中强调了学生需要根据情境进行写作，并给出了写作的思路和要点。5.参考答案：Ahealthydietisveryimportantforourhealth.Iusuallyeatabalanceddiet,includingplentyoffruitsandvegetables,wholegrains,andleanproteins.Ialsotry