2024年山东省烟台市七年级英语第二学期期末达标检测模拟试题含答案

2024年山东省烟台市七年级英语第二学期期末达标检测模拟试题满分120分，时间90分钟一、单项选择（共10小题，满分20分）1、—Sandylooksworriedthesedays.Whathappenedtoher?—Well,everyonehasthosedayswhen________goesright.A.everything B.nothing C.something D.anything2、—Suzy,what’s___________thebox?—Openit!It’sasurpriseforyou.A.beside B.outside C.behind D.inside3、Thefootballgamewassogreatthatmyuncle________towatchityesterdayevening.A.cutup B.getup C.stayedup4、—Andy,whatareyourneighbourslike?—________.A.Theyarefromdifferentcities B.They’dliketoworktogetherC.Theyarekindandhelpful D.Theylikesinginganddancing5、—________doesyouruncledo?—Asinger.A.Why B.What C.Where D.How6、—Thereisasign.Itsays“NoSmoking!”—Sorry,I________it.A.didn’tnotice B.don’tnotice C.won’tnotice D.amnotnoticing7、—________aclockonthewall.It________threehands.—Icanseeit.A.There’s;has B.There’re;has C.Therehave;has D.Therehas;have8、—________?—It’scloudyandcool.A.Howdoyouspellit B.CanIhelpyou C.How’stheweather D.Howlongdoesittake9、Listen!MsLi________thestudentshowtoplaythepiano.A.teach B.teaches C.isteaching D.taught10、Alex________lastnighttowatchthebasketballgame,sohedidn’tgetupearlythismorning.A.gotasurprise B.wenttothemovies C.stayeduplate D.tookawalk二、完成句子（共5小题，满分10分）11、请记得不要浪费或污染水。(remembernotto...)_______________________12、Myfatherisaf________.Heworksonabigfarm.13、这个餐馆在银行和医院之间。Therestaurantis________thebank________thehospital.14、Thegirlisverys________.Shedoesn’ttalkmuch.15、CanyoubelievethatamanintheUKcanlive________foodforthreeweeks?(没有)三、补全对话（10分）16、根据对话内容，在每个标有题号的空白处填入一个适当的句子，使对话完整，合乎情景。Rick:Hello,Rickspeaking.Steve:Hi,Rick.It’sSteve.____1____?Rick:Notbad,thanks.Theweather’sgreat.____2____?Steve:I’mplayingbasketballwithsomefriendsatthepark.Rick:Soundslikeyou’rehavingagoodtime.Steve:Yeah.____3____?Rick:No.Mybrotherisnotathome.He’sstudyingathisfriend’shome.____4____?Steve:Yes.Couldyoujusttellhimtocallmeback?Rick:Sure,noproblem.四、阅读理解（40分）17、Mostpetownerslovetheirdogs,catsorotheranimals,makingthempartoftheirfamily.Inreturn,petscanmaketheirownersfeellovedandhelpthemenjoylife.Earlierstudiesshowedthatpetscanhelpreduceworriesintheirowners,saidTiffanyBraley.Andherstudyshowsthatowningapetcanalsohelpslowcognitivedecline（认知衰退）inoldpeople.Cognitivedeclinemeanslosingoneormorecognitiveabilities,suchasmemory（记忆）orlanguageskills.Inthestudy,peopleover65yearsoldwhoownedpetsformorethanfiveyearswerebetterabletorememberwordsthannon-petowners.OneexampleofsomeonewhoslowedcognitivedeclinebykeepingapetisformerU.S.PresidentJimmyCarter.Afterhewassickin2015,Carterstartedspendingmoretimeathishomewithhispets.Hesaidthathisdogswereagreatcomfortduringwhatwasadifficulttimeforhim.Hedescribedhowtraininghisnewpuppymadehimstaysharp（头脑清醒的）.Studieshaveshownthatowningapetisreallyhelpful.InCarter’scase,hisdogsnotonlyhelpedhimwithhisillnessbutalsokepthimcognitivelyhealthy.1.Whichofthefollowingpicturecanbestshowtheword“reduce”inParagraph2?A. B. C. D.2.Whichofthefollowingcanbeakindofcognitivedecline?A.Beingunabletowalk. B.Feelingunhappy.C.Forgettingfriends’names. D.Talkingtoomuch.3.WhatcanweknowaboutformerU.S.PresidentJimmyCarter?A.Hecouldn’tworkwellbecausehegotill. B.Hestartedtokeepapetafterhewassick.C.Traininghisnewpuppyhelpedhimalot. D.Hespentmuchtimewithhispetsbefore2015.4.Wherecanwefindthispassage?A.Inastorybook. B.Inahistorybook. C.Inatravelguide. D.Inasciencemagazine.18、TherearemanyfestivalsinChina,suchastheSpringFestival,theMid-AutumnFestivalandtheLanternFestival.___1___TheMid-autumnFestivalisanimportantfestival.___2___Onthatday,manypeoplegohometostaywiththeirfamily.___3___Atnight,peopleoftenenjoythebeautifulfullmoonintheiryard.Atthesametime,peopleeatmooncakes.___4___Theyareroundlikethemoon.Andthey’reverydelicious.Atthistime,someoldpeopleliketotellthechildrenastoryaboutChang’e.___5___Theywanttogotothemoonandhavealooksomeday.根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使文章意思通顺、内容完整。A.It’sonlunarAugust15th.B.ThechildrenallbelievethatChang’elivesonthemoon.C.Among(在……之间)them,IliketheMid-autumnFestivalmost.D.Theyareaspecialkindoffood.E.Theyhaveadinnertogethertocelebratethefestival.19、It’sBarbecue(烧烤)Time！TheSummerholidayiscoming.Ifyouwanttostayhealthyandenjoyagreatbarbecue,youcan’tmissourThreeBtrip!Thisisathree-daybarbecuetrip.Wehavealotofinterestingactivities.Youcanenjoy3B(Bike,BedandBarbecue)withyourfamilyandfriends.Day1Wecanenjoythesoftwindandfreshairalongtheroadbybus.Then,havelunchatTreeHotel.StayatRiverCampatnight.Kidsunder6:$30Kidsaged6－12:$60Peopleover12:$120Day2Keepgoingonourtrip.Itwillbenomeatdaythen.WewillpickfreshvegetablesandfruitonHappyFarm.Althoughwewon’thavemeatthatday,youwilllikethedeliciousvegetablesandfruitthatpickedbyyourself.StayatQueenHotelatnight.Day3Afterbreakfast,wecandosomeexercisetoshakeofffat(脂肪).Barbecueisat12:00andsaygoodbyeafterlunch.1.Peoplecanenjoythesoftwindandfreshair________.A.atTreeHotel B.onthewaytoTreeHotel C.onHappyFarm D.atQueenHotel2.Peoplewillride________kilometersonthesecondday.A.fifteen B.sixteen C.twenty-four D.twenty-five3.WhichofthefollowingisrightaboutThreeBtrip?A.Ifyougowithyour8-year-oldson,youneedtopay$150.B.YouwillhavelunchatTreeHotelonthesecondday.C.Youwillhaveabarbecueatnoononthethirdday.D.Youwillhavenomeatonthethirdday.20、IvisitmygrandparentsonSundaymorning.Theyliveonthefarmwithabigyard.Ilivewiththemfortwoweeks.Ilovethelifeinthecountryside.Inthecountryside,peopleareclosetonature.Therearemanyflowersandtreesaroundthehouse.Wecangetfreshairandcleanwater.Wecanalsoeatfreshfruitandvegetables.Everymorning,Iruninthefreshair.Peopleinthecountrysidearefreeandnice.Theneighborsarekindtoeachother.Theycanhelpeachotherwithmanythings.Thereisn’tmuchtraffic.Thecostoflivingisnotveryhigh.Thelifeinthecountrysideisveryquiet.Butitalsohasitsdisadvantages.There’snoeasymeansoftransportandcommunications（交通和通信）.There’snopostofficeorbigsupermarket.Schoolsandhospitalsarefarfrompeoplehere.Whenitrains,theroadsarehardtowalk.Iliveinthecity,butIlikethelifeinthecountryside.1.Whatkindofhousemaythewriter’sgrandparentslivein?A.Atownhouse. B.Afarmhouse. C.Anapartment. D.Atallbuilding.2.Whatdoesthewriterthinkofthelifeinthecountryside?A.Quiet. B.Boring. C.Noisy. D.Hard.3.Whatdoestheunderlinedword“disadvantages”meaninChinese?A.作用 B.差异 C.缺点 D.效果4.WhichisTRUEaccordingtothepassage?A.Thewriteralwaysliveswithhisgrandparents. B.There’snopostofficeinthecountryside.C.Thewriterlikesthelifeinthecitybest. D.Thereisnotrafficinthecountryside.5.What’sthebesttitleforthepassage?A.Mygrandparents’house B.PeopleinthecountrysideC.Lifeinthebigcity D.Lifeinthecountryside五、完形填空（10分）21、MygoodfriendSandywassoworriedabouthercat.Sheaskedformyhelp.Hercatwasill,butit___1___seriousenoughtotakeittothevet(兽医).Isaidtoher,“Youmustdosomething.”“Butthere’s___2___Icando,”Sandysaid.“___3___thevetandtalktohim,”Isaid.“Thatdoesn’tmakesense(有意义)___4___thevetwon’tknowanythingfromwhatItellhim.Hemayaskme___5___mycattoseehim,andIknowit’snotthatserious,”shesaid.“Yes,Iunderstand,”Isaid.“Butyouneedtodothatfor___6___,notforthecat.Bynotdoinganythingyouareworryingyourself.”“Okay,”shesaid.“Isee___7___youmean.”WhenSandycalled,thevet___8___foundtheproblem.Hetoldhertobringthecatin.Andifhewasrightaboutthecat,he___9___treatitrightaway.Ifyouworryaboutanything,youshouldact(行动)onit,notjustthinkaboutit.Youcanmaketheactionsverysmallandeasy,aslongasyoutakeone.Evensmallactionswillsendawayyour___10___.Whenthere’saction,there’snofear(恐惧).1.A.isn’t B.doesn’t C.wasn’t D.didn’t2.A.anything B.nothing C.something D.everything3.A.Call B.Calls C.Called D.Calling4.A.if B.because C.when D.after5.A.takes B.taking C.took D.totake6.A.me B.you C.mine D.yours7.A.what B.why C.how D.who8.A.careful B.quick C.carefully D.quickly9.A.may B.must C.could D.hadto10.A.worry B.problem C.worries D.problems六、阅读表达（10分）22、请阅读下面短文，根据所提供的信息，回答5个问题，要求所写答案语法正确、语义完整切题。Schooltripsaregoodwaystomakestudentsgetinterestedinlearning.Fourstudentsarehappytoshare(分享)theirschooltripswithus.JackIspentadaywithmyteachersandclassmatesinthewoods(树林).Welearnedsomethingusefulabouttrees,flowersandsmallanimals.Wealsolearnedhowtocookoutside.Whatanexcitingtrip!TimAtfirst,Ithoughtitwouldbeboringtovisitafarm.Butafterwearrivedatthefarm,Ifoundeverythingtherewasfun.Wefedchickensandrodehorses.Oh,Ialsoboughtsomeeggsformygrandparents.LisaItookatriptotheoldpeople’shomelastmonth.Inthemorning,wehelpedtheoldpeoplecleanthehouse.Thenwetalkedwiththemandgavemusicshowstothem.Fromthetrip,Ilearnedthatyoungpeopleshould(应该)helptheoldinlife.SusanLastweek,myteachertookustoarestaurantcalledEpcotCenter.Wevisitedthekitchenfirstandlearnedhowtocookhealthydishes.Thenweatesomenoodlesforlunch.Wearrivedthereat10:00a.m.andleftat4:00p.m.Theschooltripwasfunforme.1.WheredidJackgoonhisschooltrip?_______________________________________________________________2.WhatdidTimthinkofthefarmafterhearrivedthere?_______________________________________________________________3.WhodidTimbuyeggsfor?_______________________________________________________________4.WhatdidLisalearnfromherschooltrip?_______________________________________________________________5.HowlongdidSusanstay(待)intherestaurant?_______________________________________________________________七、书面表达（20分）假定你是李平，上个月你们学校组织了一次去农场的郊游活动，请根据下图提示用英语写一篇短文，向某英语网站投稿，谈谈本次活动和你的感受。注意：___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案一、单项选择（共10小题，满分20分）1、B【解析】【详解】句意：——桑迪这些天看起来很担心。她怎么了？——唉，每个人都有一切不顺利的日子。考查不定代词。everything所有事情；nothing没有什么事情；something某些事情；anything任何事情。根据“Sandylooksworriedthesedays.”可知，下文表示桑迪最近担心的原因。结合“goesright”可知，横线上应是一个否定词，表示没什么进行顺利。故选B。2、D【解析】【详解】句意：——Suzy，盒子里是什么？——打开它！这是给你的一个惊喜。考查介词辨析。beside在旁边；outside在外面；behind在后面；inside在里面。根据“Openit”可知问的是盒子里面是什么，所以要打开盒子。故选D。3、C【解析】【详解】句意：足球比赛太精彩了，昨天晚上我叔叔熬夜看了。考查动词短语辨析。cutup切碎；getup起床；stayedup熬夜。根据“myuncle…towatchityesterdayevening”可知，叔叔昨晚熬夜看足球比赛，故选C。4、C【解析】【详解】句意：——安迪，你的邻居们是什么样的？——他们很友善且乐于助人。考查特殊疑问句及答语。Theyarefromdifferentcities表示“他们来自不同的城市”；They’dliketoworktogether表示“他们想一起工作”；Theyarekindandhelpful表示“他们很友善且乐于助人”；Theylikesinginganddancing表示“他们喜欢唱歌和跳舞”。根据“whatareyourneighbourslike?”可知，whatbesblike?通常询问某人的品质，性格等内在的东西，C选项“他们很友善且乐于助人”符合语境。故选C。5、B【解析】【详解】句意：——你叔叔是干什么的？——一名歌手。考查特殊疑问句。Why为什么；What什么；Where在哪里；How怎么。根据答语“Asinger.”可知，对职业提问，Whatdoessb.do?故选B。6、A【解析】【详解】句意：——那有个标记。上面写着“禁止吸烟！”——对不起，我没有注意到。考查时态。根据“Sorry”表达歉意，可知此处指“对方提醒之前没注意到牌子”，用一般过去时。故选A。7、A【解析】【详解】句意：——墙上有一只钟。它有三个指针。——我能看见它。考查therebe句型和主谓一致。Therebe...表示“某处有某物”，不能与have连用，排除C、D；主语是aclock，这里的be动词用is；第二空所在句的主语是it，谓语动词have要用第三人称单数。故选A。8、C【解析】【详解】句意：——天气怎么样？——多云凉爽考查交际用语。Howdoyouspellit你是怎么拼写它的；CanIhelpyou我可以帮助你吗；How’stheweather天气如何；Howlongdoesittake花费多长时间。根据答语“It’scloudyandcool”可知，上句询问天气。故选C。9、C【解析】【详解】句意：听！李女士在教学生如何弹钢琴。考查现在进行时。根据“Listen!”可知，用现在进行时，即am/is/are+现在分词。主语是he，be动词用is，teach的现在分词是teaching。故选C。10、C【解析】【详解】句意：Alex昨天晚上熬夜看篮球赛了，所以他今天早上没有早起床。考查动词短语。gotasurprise感到惊喜；wenttothemovies去看电影；stayeduplate熬夜；tookawalk散步。根据“sohedidn’tgetupearlythismorning”可知，Alex没有早起床，因此他应是昨晚熬夜了。故选C。二、完成句子（共5小题，满分10分）11、Pleaseremembernottowasteorpollutewater.【解析】【详解】please“请”；remembernottodo“记得不要做”；waste“浪费”；or“或者”；pollute“污染”；water“水”。故填Pleaseremembernottowasteorpollutewater.12、(f)armer【解析】【详解】句意：我父亲是一个农民。他在一个大农场工作。根据“Heworksonabigfarm.”可知，我的父亲在一个农场工作。结合首字母f可知，我的父亲是农民。故填(f)armer。13、①.between②.and【解析】【详解】在……和……之间：between...and，介词短语。故填between；and。14、(s)hy【解析】【详解】句意：女孩非常害羞。她讲话不太多。此空为形容词作表语，根据“Shedoesn’ttalkmuch.”可知女孩害羞，所以讲话不多，shy表示“害羞的”。故填(s)hy。15、without【解析】【详解】句意：你能相信一个英国人不吃东西能活三个星期吗？根据“live...food”可知“没有”在此处用介词without表示。故填without。三、补全对话（10分）16、1.Howisitgoing2.Whatareyoudoing3.Isyourbrotherathome4.CanItakeamessageforhim【解析】【导语】本文是Rick和Steve两个人正在打电话，主要讨论各自的近况等内容。【1题详解】根据“Notbad,thanks.”可知，Steve询问Rick近况如何。Howisitgoing“最近怎么样”符合语境。故填Howisitgoing。【2题详解】根据“I’mplayingbasketballwithsomefriendsatthepark.”可知，Rick询问Steve正在做什么，应用what提问，时态是现在进行时。Whatareyoudoing“你在做什么”符合语境。故填Whatareyoudoing。【3题详解】根据“No.Mybrotherisnotathome.”可知，Steve询问Rick的哥哥是否在家，应为一般疑问句。Isyourbrotherathome“你哥哥在家吗”符合语境。故填Isyourbrotherathome。【4题详解】根据“Yes.Couldyoujusttellhimtocallmeback?”可知，Rick询问Steve是否要留言。CanItakeamessageforhim“要我转告吗”符合语境。故填CanItakeamessageforhim。四、阅读理解（40分）17、1.B2.C3.C4.D【解析】【导语】本文主要讲述了养宠物真的很有帮助。宠物不仅帮助人们治疗疾病，还使人们保持认知健康等。【1题详解】词义猜测题。根据第二段“Earlierstudiesshowedthatpetscanhelpreduceworriesintheirowners,saidTiffanyBraley.Andherstudyshowsthatowningapetcanalsohelpslowcognitivedecline（认知衰退）inoldpeople.TiffanyBraley说，早期的研究表明，宠物可以帮助主人……忧虑。她的研究表明，养宠物也有助于减缓老年人的认知能力下降。”可推知，此处是指帮助主人减少忧虑，reduce意思是“减少”。故选B。【2题详解】推理判断题。根据第二段“Cognitivedeclinemeanslosingoneormorecognitiveabilities,suchasmemory（记忆）orlanguageskills.认知能力下降意味着失去一种或多种认知能力，比如记忆力或语言技能。”可推知，忘记朋友的名字是认知能力下降的表现。故选C。【3题详解】细节理解题。根据第三段“Hedescribedhowtraininghisnewpuppymadehimstaysharp.他描述了如何训练他的新小狗使他保持敏锐。”可知，美国前总统吉米•卡特生病后，训练他的小狗对他帮助很大。故选C。【4题详解】推理判断题。根据最后一段“Studieshaveshownthatowningapetisreallyhelpful.InCarter’scase,hisdogsnotonlyhelpedhimwithhisillnessbutalsokepthimcognitivelyhealthy.研究表明，养宠物真的很有帮助。在卡特的案例中，他的狗不仅帮助他治疗疾病，还使他保持认知健康。”可推知，我们可以在科学杂志上看到这篇文章。故选D。18、1.C2.A3.E4.D5.B【解析】【导语】本文是一篇记叙文，主要介绍了中秋节的具体活动。【1题详解】根据前一句“suchastheSpringFestival,theMid-AutumnFestivalandtheLanternFestival”可知，提到了中秋节和元宵节两个节日，所以该空与这两个节日有关，C选项“其中，我最喜欢中秋节。”符合语境，故选C。【2题详解】根据前一句“TheMid-autumnFestivalisanimportantfestival.”可知，中秋节是一个重要的节日，提出中秋节的话题后，首先应该介绍日期，A选项“它在农历八月十五日。”符合语境，故选A。【3题详解】根据前一句“manypeoplegohometostaywiththeirfamily.”可知，许多人回家与家人住在一起，所以该空是中秋节和家人们一起的活动，E选项“他们一起吃晚饭庆祝节日。”符合语境，故选E。【4题详解】根据前后两句“Atthesametime,peopleeatmooncakes...Theyareroundlikethemoon.”可知，人们吃月饼，月饼是圆的，该空也与月饼有关，D选项“它们是一种特殊的食物。”符合语境，故选D。【5题详解】根据后一句“Theywanttogotothemoonandhavealooksomeday.”可知，他们想有一天去月球看看，所以该空与月亮有关，B选项“孩子们都相信嫦娥生活在月球上。”符合语境，故选B。19、1.B2.C3.C【解析】【导语】本文主要介绍一个为期三天的烧烤旅行。【1题详解】细节理解题。根据“Wecanenjoythesoftwindandfreshairalongtheroadbybus.Then,havelunchatTreeHotel.StayatRiverCampatnight.”可知在去大树旅馆的路上能享受到微风和新鲜的空气，故选B。【2题详解】细节理解题。根据“WewillpickfreshvegetablesandfruitonHappyFarm.Althoughwewon’thavemeatthatday,youwilllikethedeliciousvegetablesandfruitthatpickedbyyourself.StayatQueenHotelatnight.”及“StayatRiverCampatnight.”和图片可知第二天先从RiverCamp到幸福农场，共15km，再从幸福农场到皇后旅馆，共9km，故第二天一共走了15+9=24km。故选C。【3题详解】细节理解题。根据“Barbecueisat12:00andsaygoodbyeafterlunch.”可知在第三天的中午会进行烧烤。C项正确，故选C。20、1.B2.A3.C4.B5.D【解析】【导语】本文主要介绍了乡村生活的优缺点。【1题详解】细节理解题。根据“Theyliveonthefarmwithabigyard”可知作者的爷爷奶奶住在农场。故选B。【2题详解】细节理解题。根据“Thelifeinthecountrysideisveryquiet.”可知农村的生活很安静。故选A。【3题详解】词义猜测题。根据“Butitalsohasitsdisadvantages.There’snoeasymeansoftransportandcommunications”可知此处介绍的乡村生活的缺点，故此处划线部分意为“缺点”。故选C。【4题详解】细节理解题。根据“There’snopostofficeorbigsupermarket”可知乡村没有邮局。故选B。【5题详解】最佳标题题。本文主要介绍了乡村生活的优缺点，以选项D“乡村生活”为标题最合适。故选D。五、完形填空（10分）21、1.C2.B3.A4.B5.D6.B7.A8.D9.C10.C【解析】【导语】本文主要讲述了作者朋友的猫生病了，作者建议对方带猫去看兽医，就算不是为了猫也要为了自己不那么担忧。【1题详解】句意：她的猫病了，但还没有严重到带它去看兽医的地步。isn’t不是；doesn’t一般现在时助动词；wasn’t不是，过去式；didn’t一般过去时助动词。空后是形容词，此处是系表结构，不用助动词，结合前句可知句子是一般过去时，故选C。【2题详解】句意：“但是我什么也做不了，”桑迪说。anything任何事；nothing没有什么；something某事；everything一切。根据“Youmustdosomething”以及But表示转折可知桑迪不能做什么，应用nothing。故选B。【3题详解】句意：“打电话给兽医，和他谈谈，”我说。Call动词原形；Calls动词三单；Called动词过去式；Calling动名词。分析语境可知此处是祈使句，动词用原形，故选A。【4题详解】句意：这没有意义，因为兽医不会从我告诉他的事情中得到任何信息。if如果；because因为；when当……时候；after在……之后。前后是因果关系，前果后因，故选B。【5题详解】句意：他可能会让我带我的猫去看他。takes动词三单；taking动名词；took动词过去式；totake动词不定式。asksbtodosth“让某人做某事”，为固定短语。故选D。【6题详解】句意：但这是为了你自己，而不是为了猫。me我；you你；mine我的；yours你的。根据“Bynotdoinganythingyouareworryingyourself.”可知作者建议对方找兽医是让桑迪为了自己，而不是为了猫，故选B。【7题详解】句意：我明白你的意思了。what什么；why为什么；how如何；who谁。此处是宾语从句，连接词作mean的宾语，应用what。故选A。【8题详解】句意：当桑迪打来电话时，兽医很快发现了问题所在。careful认真的；quick快速的；carefully认真地；quickly快速地。此处应填副词修饰动词，结合语境可知兽医很快发现了问题所在。故选D。【9题详解】句意：如果他对猫的判断是正确的，他可以马上治疗它。may可能；must必须；could能够；hadto不得不。根据“ifhewasrightaboutthecat,he...treatitrightaway.”可知如果兽医的判断是正确的，就可以马上治疗它。故选C。【10题详解】句意：即使是很小的举动也会驱散你的担忧。worry担心；problem问题；worries担心，复数；problems问题，复数。根据上文“If