初三考试1
贵州遵义贵龙中学2019初三重点考试试题1及解析-英语(附听力)
贵州遵义贵龙中学2019初三重点考试试题1及解析-英语（附听力）〔本试题卷总分值150分。
考试用时120分钟〕本卷须知1、答卷前，考生务必将自己的姓名、准考证号填写在试题卷和答题卡上，并认真核准条形码上的准考证号，并将条形码粘贴在答题卡上指定位置。
2、选择题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，假如需要改动，用橡皮擦干净后，再涂其它答案标号。
非选择题必须使用0.5毫米的黑色签字笔直截了当答在答题卡上。
答在试题卷上无效。
3、考试结束，监考人员将本试题卷和答题卡一并收回。
【一】听力部分〔共20小题，每题1.5分，计30分〕A.图片理解。
请听句子，从A、B、C、中选择与句子意思相符的正确图片，并用2B铅笔把答题卡上对应题目的答案标号涂黑。
〔听二遍〕1.A.B.C.2.A.B.C.3.A.B.C.4.A.B.C.5.A.B.C.B.小对话理解。
请听小对话，从A、B、C中选择正确的答案，并用2B铅笔把答题卡上对应题目的答案标号涂黑。
〔听二遍〕6.A.Twenty-fiveminutes.B.Thirtyminutes.C.Thirty-fiveminutes.7.A.Ontheright.B.Nexttothebookstore.C.Nexttothepostoffice.8.A.He’sapilot.B.Heisashipcaptain.C.Heisatruckdriver.9.A.Husbandandwife.B.Neighbors.C.Fatheranddaughter.10.A.Inapostoffice.B.Inarestaurant.C.Inabank.C.短文理解。
请听短文，并依照其内容，从A、B、C中选择能回答所给问题的最正确答案，并用2B铅笔把答题卡上对应题目的答案标号涂黑。
〔听三遍〕11.Myfamilylivedin_______beforeIwas12yearsold.A.thecityB.townC.themountains12.Ispent______walkingtoschooleverymorning.A.halfanhourB.onehourC.oneandahalfhours13.Icouldmeet_______onthewaytoschool.A.myfriendsB.myparentsC.nobody14.Therewere______studentsinmyclass.A.12B.20C.4015.Icouldsee________there.A.theseaB.manyhighbuildingsC.manykindsofflowersD.长对话理解。
2019中考英语—浙江泰顺初三重点考试(1)及解析.doc
2019中考英语—浙江泰顺初三重点考试（1）及解析注意事项：认真阅读理解，结合历年的真题，总结经验，查找不足！重在审题，多思考，多理解！【一】单项填空(此题有10小题，每题1分,共10分)请从A、B、C、D四个选项中选出可以填入空白处的最正确答案。
1.—Mom,Ican’tfindmybook?---Isaw_____bookunderthetableinthelivingroom,Canitbeyours?A.theB.aC./D.an2.—Look,that'sMr.Smith,ournewEnglishteacher.—Yes.Let'sgoandsayhelloto.A.meB.herD.him3.—What'syourfavorite?—Spring.Becauseeverythingbeginstogrow.A.weekB.seasonC.monthD.year4.—Lookattheprettygirl.IsitLinda?—No,itbeher.ShehasgonetoLondon.A.mustn'tB.needn'tC.can'tD.won't5.—I'mgetting.Thesweateristoosmallforme.—I'mafraidyouhavetoexerciseeveryday.A.thinnerB.heavierC.shorterD.taller6.—isitfromheretothepark?—About10kilometers.Youcangobybus.A.HowlongB.HowfarC.HowoftenD.Howsoon7.—John,whereisyourfather?—I'mnotsure.Maybehenewspapersinhisroom.A.readsB.isreadingC.willreadD.read8.—Tom,getup.It'stimeto.—It'sSunday.WehavenoclassesonSunday.A.gotobedB.gotoworkC.gohomeD.gotoschool9.—Couldyoutellmelastnight?—Er,IwaswatchingTVathome.A.whatyouweredoingB.whatwereyoudoingC.whatyouaredoingD.whatareyoudoing10.—Samhurthislegyesterday.Nowheisinhospital.—.A.That'sallright.B.You'rewelcome.C.Notatall.D.I'msorrytohearthat.【二】完形填空〔此题有15小题,每题1分，共15分〕阅读下面短文，掌握大意，然后从每题所给的A、B、C、D四个选项中选出最正确选项。
2021-2022九年级第一学期期末物理试卷(及答案)
2021-2022 学年第一学期期末学业质量检测九年级物理试卷（卷Ⅰ）考生注意：1.本试卷满分 100 分，考试时间为 90 分钟；2.答题一律用黑、蓝色钢笔或圆珠笔3.请将试卷答案答在答题卡上一、选择题：（本大题共 15 小题，1--12 题为单选题每小题 3 分，13--15 小题为多选题，每小题 3 分，漏选得 2 分，多选、错选不得分，共 45 分。
）1．有关分子热运动及热现象，下列说法正确的是（）A．扩散现象只能发生在固体和液体中B．分子间存在相互作用的引力和斥力C．0℃的冰块没有内能D．扫地时尘土飞扬，说明分子不停地做无规则运动答案：B2．小明根据下表提供的几种物质的比热容得出以下四个结论，其中正确的是（）几种物质的比热容[J/（kg•℃）]水4.2×103冰2.1×103酒精2.4×103沙石0.92×103煤油2.1×103铝0.88×103水银0.14×103铜0.39×103A．一杯水比一桶煤油的比热容小B．液体的比热容一定比固体的比热容大C．质量相等的水和煤油吸收相同的热量，煤油升高的温度更多D．比热容是物质自身的性质之一，只和物质的种类有关答案：C3．下列物品中，在通常情况下都是导体的是（）A．玻璃棒、橡胶棒、油B．铅笔芯、硬币、铜丝C．金属勺、塑料尺、空气D．陶瓷碗、人体、塑料答案：B4．以下描述中的“发热”现象，其改变内能的方式与其他三个不同的是：（）A.锯木头锯条发热B.铁丝反复弯折后发热C.阳光下路面发热D.搓手时手掌发热答案：C5.如图（a）所示电路中，当闭合开关后，两只电压表的指针偏转均如图（b）所示，则灯L1和L2两端的电压分别为（）A．6V 1.5V B．7.5V 1.5V C．1.5V 7.5V D．1.5V 6V答案：A6．关于家庭电路和安全用电，下列说法正确的是（）A．使用试电笔时手不能接触笔尾金属体B．家庭电路中电流过大的原因一定是家庭电路中某处发生了短路C．发生触电事故时，首先要切断电源再进行施救D．保险丝烧断后应换一根铜丝来代替答案：C7. 有一种智能锁，需要通过“密码+人脸”两次识别成功才能开锁。
2024-2025学年河北省石家庄市桥西区部分校初三1月份统一考试(物理试题理)试卷含解析
2024-2025学年河北省石家庄市桥西区部分校初三1月份统一考试（物理试题理）试卷注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。
2．答题时请按要求用笔。
3．请按照题号顺序在答题卡各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试卷上答题无效。
4．作图可先使用铅笔画出，确定后必须用黑色字迹的签字笔描黑。
5．保持卡面清洁，不要折暴、不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。
一、本大题包括10小题，每小题3分，共30分．在每小题给出的四个选项中，只有一项符合题目要求．1．如图所示，对下列光学现象的描述或解释，正确的是A．“小孔成像”是由光的直线传播形成的倒立、放大的虚像B．女孩在平面镜中看到的是自已的实像C．用放大镜看文字时物距小于焦距D．在漫反射中，不是每条光线都遵循光的反射定律2．如图所示，利用滑轮组在2s内将重400N的物体匀速提升了1m，所用拉力F为150N．不计绳重和摩擦，下列说法正确的是A．绳子自由端移动的速度为2.5m/sB．动滑轮的总重为100NC．滑轮组的机械效率为83.3%D．提升更重的物体，滑轮组的机械效率会变大3．如图所示，用手指压圆珠笔芯使它弯曲，同时手指感到疼痛，这个实验不能说明A．力的作用是相互的B．笔尖受力面积小压强大C．力可以改变物体的形状D．力可以改变物体的运动状态4．关于安全用电，下列做法正确的是A．在通电的电线上晾晒衣服B．及时更换老化的电线C．用湿布擦拭通电的电视机D．在高压线附近放风筝5．在国际单位制中，压强的单位是A．米/秒B．千克/米3C．牛/千克D．帕斯卡6．某同学做电学实验时,电路如图所示．已知他所用电流表的量程为0~0.6 A,电压表的量程为0~3 V,电源电压为6 V保持不变,滑动变阻器的最大阻值为50 Ω,定值电阻R0为10 Ω,开关S闭合后,在实验操作无误的情况下,下列说法正确的是A．电流表的最大示数为0.6 AB．滑动变阻器消耗的最小功率为0 WC．电压表的最小示数为1 VD．电阻R0消耗的最大功率为1.8 W7．用相同的滑轮和绳子分别组成如图所示的甲、乙两个滑轮组,把相同的体提升相同的高度,在不计绳重及机械摩擦的情况下,下列选项A．F甲>F乙η甲=η乙B．F甲<F乙η甲=η乙C．F甲>F乙η甲>η乙D．F甲<F乙η甲<η乙8．小豪在参观科技馆时体验了一次骑“空中自行车”，自行车的下方悬挂着质量较大的配重，自行车在钢丝上前进，骑行的人不会掉下来．图所示的实例中，与自行车在钢丝上前进而不倾倒的原理相同的是A．公道杯B．不倒翁C．刷子小车D．自制的甩干机9．关于声现象，下列说法正确的是（）A．“闻其声而知其人”是根据声音的响度来判断的B．“不敢高声语，恐惊天上人”中的“高”是指声音的音调高C．高速公路两侧安装透明板墙是在声源处减弱噪声D．超声波可以粉碎结石，说明声音具有能量10．下列说法中正确的是A．猎豹的速度为1.8km/min，雨燕的速度为50m/s，猎豹运动更快B．受油机在空中加油时，必须和加油机保持相对静止C．箭离开弓弦后，能飞行相当远的距离，是因为箭还受到向前的动力D．卫星绕地球做匀速圆周运动，是因为卫星受到平衡力的作用二、填空题（本大题包括7小题，每小题2分，共14分）11．周末小明骑自行车去游玩，自行车下坡过程中，为了减小车速，他捏紧车闸，刹车皮会发热，这是通过______的方式增加内能。
第一学期期中考试初三《历史与社会》试卷1
第一学期期中考试初三《历史与社会》试卷一、选择题：下列各题只有一个答案最符合要求，请将正确答案的英文字母填入题后的括号中（每题2分，共50分）1、当今各国学者公认的，区别猿类和人的主要标志是（)A、能适应自然环境的变化而迁徙B、能够有意识制造并使用工具C、外貌和现代人相似与否D、生产工具是否进步2、大约在距今1万多年前，聪明的古人发明了打磨结合的石器制作工艺，人们征服自然的能力进一步提高了，人类文明进入了一个新的时代，这被称为：（）A、青铜时代B、铁器时代C、新石器时代D、旧石器时代3、小明同学跟随一考古队从非洲出发，从西向东去考察四大文明古国的发源地，他考察经过的顺序应该是：（）①尼罗河流域②印度河流域③黄河流域④两河流域A、①③④②B、①④②③C、①②④③D、③②①④4、汉谟拉比制定法典的主要目的是（)A、维护奴隶主的利益B、扩大公民权利C、实行种姓制度D、促进经济发展5、在印度的四个等级中，哪几个等级是受压迫的（)①婆罗门②刹帝利③首陀罗④吠舍A、①③B、②④C、②③④D、③④6、崇尚武力，社会如同军营的古代希腊城邦是指：（）A、斯巴达B、雅典C、巴比伦王国D、埃及7、古代罗马规模最大的一次奴隶起义的领导者是（)A、汉莫拉比B、伯利克里C、斯巴达克D、凯撒8、下列内容中，代表了东方文化成就的是：（）①《荷马史诗》②《伊索寓言》③《天方夜谭》④阿拉伯数字⑤铁诺第兰城A、①②③④B、②③④⑤C、①③④D、③④9、下列关于西欧城市重新兴起的叙述不正确的是（）A、西罗马帝国帝国灭亡后，西欧城市曾一度衰落。
10世纪，西欧城市重新兴起B、随着城市的发展，一些城市为争取自治权同教会或世俗封建主展开了斗争，但斗争都失败了C、在西欧城市重新兴起和工商业迅速发展过程中，市民阶级形成，后来从中分化出了早期资产阶级D、西欧城市的市民阶级要比中国古代城市市民强大10、每年的12月25日都是西方国家的孩子们最期盼的节日，传说这一天圣诞老人会给每一个孩子带来礼物。
2023届初三学业考试第一次模拟历史专题训练(山东省淄博)
选择题史料实证是学习历史的重要方法，下列能够证明第二次鸦片战争中西方列强严重破坏中国优秀文明成果的证据是（）A.B.C.D.【答案】D【解析】依据所学可知，第二次鸦片战争期间，英法联军占领北京，当时的清朝皇帝逃往承德，英法联军闯入圆明园，抢劫并火烧了这座著名的皇家园林，给中华文化带来了巨大的损失，D项符合题意；A项图片是虎门销烟，是鸦片战争的直接原因，不符合题意；B项图片描述的是1900年的八国联军侵华战争，不符合题意；C项图片描述的是日本侵华战争期间的南京大屠杀，不符合题意；故选D。
选择题戊戌变法期间，湖南《湘报》发表了《醒世歌》：“若把地球来参详，中国并不在中央，地球本是浑圆物，谁是中央谁四旁？”这首诗歌所表达的主要思想是，劝导国人A. 放弃天朝观念B. 学习西方技术C. 拥护民主共和D. 反抗列强侵略【答案】A【解析】依据材料“戊戌变法期间”“若把地球来参详，中国并不在中央，地球本是浑圆物，谁是中央谁四旁？”意思是：自古以来，中国人大都认为“天圆地方”，中国处于世界的中心，是“天朝上国”。
结合课本所学，鸦片战争，惊醒了中国人的迷梦，认识到“中国并不在中央”。
先进的中国人开始了解世界，摒弃“天朝”观念，学习西方。
A项符合题意；洋务运动期间提出学习西方技术，B项不合题意；1911年辛亥革命建立民主共和国，袁世凯窃取了辛亥革命的果实，复辟帝制，孙中山开始拥护民主共和，C项不合题意；西方列强的侵略导致中国人民反列强侵略，材料没有体现。
D项不合题意。
由此可知BCD三项不合题意，故选择A。
选择题下图是某同学进行历史探究学习时设计的年代尺，请推断他探究的主题是（）A. 北伐胜利进军B. 抗日战争的胜利C. 国共两党合作共赢D. 国民党的革命历程【答案】C【解析】依据题干关键词“国民党一大、北伐、西安事变、抗战胜利”可知，此内容反映的是国共两党合作共赢。
1924年初，国民党一大在广州召开，标志国共两党和各革命阶级的统一战线正式成立；北伐战争则是在中国国民党领导下，以国共合作为基础，以国民革命军为主力，以蒋介石为总司令，于1926年7月发动的一场统一战争，基本上消灭了北洋军阀的统治；西安事变的和平解决，标志着国共十年内战基本结束，促进国共合作抗日局面出现；20世纪30年代以来，日本不断加快侵华步伐，民族危机严重，民族意识觉醒，国共两党也由分裂走向合作抗日，形成了全民族抗战的居面，最终取得抗战的胜利，故C 符合题意；北伐胜利进军、抗日战争的胜利、国民党的革命历程表述不全面，故ABD不合题意。
江西省抚州市2024-2025学年初三1月检测试题语文试题文试题含解析
江西省抚州市2024-2025学年初三1月检测试题语文试题文试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。
选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。
2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。
3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。
一、积累1．下列句子没有语病．．．．的一项是（）A．通过这次班会，他认识到了自己的错误，端正了自己的学习态度。
B．《中国诗词大会》不仅弘扬了中华民族传统文化，而且带领我们重温了很多经典诗词。
C．经过讨论，我们一致认为，这场围棋比赛输赢的关键是参赛者良好的心态。
D．为了杜绝校园欺凌事件不发生，学校加强了安保室的监督力度。
2．下面语段中字音、字形全对的一项是什么是他的不变的东西呢？战斗精神和悲天（）人的情操。
从此，麋鹿结束了它们大半个世纪在海外颠沛（）流离的生涯，开始了回归故土的新生活。
每一朵紫花中的最浅淡的部分，在和阳光互相挑（）逗。
往日多么傲慢的我，多么（）持的我，原来也是个孱头。
A．闵pèi tiāo 矜B．悯fèi tiāo今C．悯pèi tiǎo矜D．闵fèi tiǎo今3．下列字形和加点字读音完全正确的一项是（）A．鞭挞．（tà）寒噤．（jīng）关隘．（ài）眼花瞭．乱（1iáo）B．狡黠．（jié）联袂．（mèi）蜿．蜒（wān）炯．然不同（jiǒng）C．句读．（dòu）丝缕．（1ǚ）骤．然（zòu）拾．级而上（shí）D．连翘．（qiáo）狼藉．（jí）作揖．（yī）果实累累．．（léi）4．下列词语中加点字字音完全正确的一项是（）A．宽宥．(yòu)裨．益（bì）自诩．(xǔ) 崭露．头角(lòu)B．确凿．（záo）客栈．（zhàn）镌．刻（juān）繁弦．急管(xuán)C．脸颊．（jiá）光纤．（xiān）赫．然(hè) 期期艾．艾(ài)D．旌．旗(jīng) 咫．尺（zhí）寒噤．(jìn) 姗．姗来迟(shān)5．默写。
2023年北京市西城区初三(第1次)模拟考试英语试卷(含解析)
2023年北京市西城区初三（第1次）模拟考试英语试卷一、单选题（本大题共12小题，共12.0分）1. My brother loves birds, and _______ often goes bird-watching in the wild.A. heB. sheC. itD. they2. The best time to visit Beijing is _______ autumn.A. onB. inC. atD. to3. Betty likes dancing, _______ she'd like to join the Dance Club.A. butB. orC. forD. so4. —_______ I do the art project on my own?—No, you don't have to. You can work with your classmates.A. MustB. MayC. CanD. Shall5. —_______ do you plan to go this May Day holiday?—Back to my mom's hometown.A. HowB. WhyC. WhereD. When6. —Mom, do you think that life is _______ today than in the past?—Yes, of course, I do.A. goodB. betterC. bestD. the best7. Look! It ______ outside. Let's take an umbrellaA. is rainingB. was rainingC. rainedD. has rained8. —How was your weekend?—Pretty good! I ______ the Great Wall with my friends.A. climbB. will climbC. climbedD. am climbing9. —Where is John?—I'm not sure. He ______ the violin in the music room when I saw him just now.A. playsB. will playC. is playingD. was playing10. Peter _______ for our community as a volunteer for nearly ten years.A. worksB. is workingC. was workingD. has worked11. The 19th Asian Games _______ in Hangzhou from September 23 to October 8, 2023.A. holdB. heldC. will be heldD. were held12. —Do you know _______ World Book Day this year?—Yes. By writing a review of our favorite books.A. how can we take part inB. how we can take part inC. when can we take part inD. when we can take part in二、完形填空（本大题共8小题，共12.0分）One without the other"I have something important to read to you!" Ava told her parents. "In school, we've been working on persuasive essays(议论文). My teacher said that in order to make people accept your idea, you have to have reasons and evidence (证据). My essay is called Why I Am Responsible and Ready for a Cell Phone."It had been a 13 for months. Ava's parents told her she couldn't have a cell phone until she was thirteen."A cell phone isn't all fun and games," they would say. "And, it is too big a(an) 14 for you to have one right now."But then, a week ago, Ava started working on writing persuasive essays at school.It was like lightning had gone off in Ava's brain.She'd worked on her essay for a week, coming up with all the reasons why she should have a cell phone. She even looked up some 15 to help as supporting evidence. Forty percent(百分之……) of children in her age group have been introduced to cell phones. Fifty-three percent of parents in the country think it's 16 for a child to own a cell phone at her age."Well, Ava, that does make sense," her dad said. "We'll talk it over." Ava wanted to jump up and down. But she was trying to show she was mature (成熟的) enough for a cell phone. So, she just smiled, nodded, and 17 .After a full week, her mom said, "Alright Ava, we are impressed by how much work you put into that essay and how mature you have become. So, you can have a cell phone.""Really?" Ava cried out. She couldn't wait to show her friends and join their chat group. She spent a good hour that first night 18 with them, discussing their weekend plan.On the weekend, Ava went to see a movie with her friends. It was not until Ava got home that she realized something was seriously wrong. Her phone was gone."Did you talk to the theater manager? Maybe someone 19 it in!" her mom said Ava breathed in. "I didn't …"In the end, her parents drove her back to the theater. Luckily, the phone was in the lost-and-found box.Ava thought that maybe she wasn't 20 to have a phone just yet.13. A. problem B. task C. tradition D. pleasure14. A. discovery B. responsibility C. expectation D. project15. A. facts B. suggestions C. experiments D. messages16. A. surprising B. arguable C. acceptable D. interesting17. A. understood B. followed C. stopped D. waited18. A. gaming B. texting C. learning D. shopping19. A. called B. traded C. turned D. pulled20. A. safe B. clear C. lucky D. ready三、阅读理解（本大题共10小题，共20.0分）AEmma's big gameEmma was very excited. Today was the championship(锦标赛) baseball game! Emma really wanted to help her team win a trophy.She put on her clothes, picked up her baseball glove and talked to herself, "I hope I get a hit today."Emma was a great hitter in practice, but she had never hit a ball during a game. She almost always struck out(三振出局).On the way to the field, Emma kept her head down and was silent."Are you feeling okay, Emma?" her mom asked."I really don't want to strike out," Emma said."Don't worry! Just keep your eye on the ball. You can do it," Emma's mom said.When the game started, Emma cheered loudly for her teammates. She caught a fly ball in the outfield to make an out, and everyone cheered for her. Emma struck out when it was her turn to bat(击球), but her team was doing well.The game was tied, and it was her team's last chance to score. Frankie was up first—he hit the ball hard and managed to run to third base. That meant he could score and win the game if the next batter got a good hit. Next up was Henry, and then Kara, but they both struck out. Emma was next up.Emma could feel all the eyes on her as she stepped up to the plate. She closed her eyes and swung(挥) hard, but missed."Keep your eye on the ball, Emma!" her mom called from the stands.Emma nodded and stepped back into the batter's box. This time she kept her eyes wide open and took a deep breath before she swung the bat.Crack!Emma hit the ball! Frankie ran home and they won!"Great game, everyone!" said Emma's coach later. "Here is your trophy."Emma held the shiny trophy high in the air. She felt very proud of her whole team.Most of all, she couldn't wait to show her mom the big trophy.21. On the way to the field, Emma felt ______.A. shyB. proudC. angryD. worried22. What happened after Henry and Kara struck out?A. Frankie scored at once.B. The game stopped for a while.C. Emma stepped up to the plate.D. The team lost the chance to win.23. At the end of the game, Emma was able to get a good hit because _______.A. she was praised by her coachB. she fixed her attention on the ballC. her friends encouraged her to do wellD. her mom helped her practice baseballBIn many ways, our memories define(定义) our sense of self. You first have a sense of yourself early in life, perhaps as young as 18 months, when you recognize that the little baby you see in the mirror is really you, and not another child. As you progress through childhood and into teenage years, you start to develop a set of views about your identity(身份), including how your body looks and performs, your abilities, your personality and your place in society.While we are growing up, we start to create our own descriptions about the events we have gone through, or what I call the "life story". Our identities are shaped by our life stories, as the memories of these stories gradually become a part of our sense of self. Of all these memories, the most important are "self-defining memories". They are remembered most clearly and can help to build up our overall sense of self most greatly.Learning to recognize your own self-defining memories can help you gain important insights about your identity. The easiest way to discover your own self-defining memories is by thinking about the events in your life that you are most likely to tell other people about when they say "tell me a little about yourself".However, self-defining memories are always changing as you experience more events. They may vary according to your age and what you care about in present life.In a study, scientists compared older adults with college students. They found that older adults were more likely to feel more positively(正面地) about their self-defining memories, even if the memories were of events that were negative in nature. A similar study also suggests that older adults have found ways to make sense out of their life stories. They turn memories of troubling events into positive stories, and in this way, they make peace with their past struggles(挣扎). For younger adults, troubling events cause them to experience more pain when they recall them. As scientists have discovered, a self-defining memory does not have to be positive in order for you to grow from it. It's not the event, but the meaning you make out of the event, that affects(影响) your sense of well-being.Discovering your self-defining memories is an important step in dealing with your life experiences. By recognizing and making sense out of past events, your identity can continue to grow and improve how you see yourself, both now, and in the future.24. What can we learn from the passage?A. Our self-defining memories have little to do with age.B. Our own descriptions of life experiences shape our identity.C. We should share positive life stories when introducing ourselves.D. We start to have self-defining memories when we are 18 months old.25. From the studies mentioned in Paragraph 5, we know ______.A. important events can be changed by timeB. older adults have few troubling life eventsC. making sense out of memories helps us to growD. self-discovery happens during positive experiences26. Which would be the best title for the passage?A. Self-defining memories: How others get to know youB. Self-defining memories: A collection of pleasant memoriesC. Self-defining memories: A great way to understand yourselfD. Self-defining memories: Describing your best self to the worldCAwe is the feeling we get in the presence of something vast that challenges our understanding of the world, like looking up at millions of stars in the night sky or shaking hands with a basketball superstar. When people feel awe, they may use other words to talk about the experience, such as wonder, amazement or excitement.We often think about awe when we experience uncommon and extraordinary events, such as viewing a sunrise over the Grand Canyon or watching Olympians break world records. But when scientists study people's experiences of awe, they suggest awe is also found in everyday life—watching a gingko tree change from green to yellow, or seeing a stranger give food to a homeless person.The feeling of awe affects the way we view ourselves. The experience of awe can have a deep influence on our mental(心理的) health, by allowing us to put our worries into perspective. When we are in the presence of something vast and indescribable, we feel unimportant, and so do our worries. The experience of awe lifts us out of the common practical thoughts that control our daily lives. and it allows us to have inner peace.In areas where the population can easily get to beautiful green spaces, people report greater happiness and goodwill toward others. A study showed that older adults who took weekly 15-minute outdoor walks in nature for eight weeks reported increased positive emotions and less pain in their daily lives.People in awe are more likely to show kindness and feel a greater sense of connection to others and the world. In moments of awe, we direct ourselves from the sense that we are solely(独自地) in control of our own future to the feeling we are part of a community. When we give less attention to our own goals and needs, we are more likely to be able to notice others and what they may be experiencing.In sum, awe arises when we run into the wonders of life and leads to a disappearing of the self. Stepping outside of oneself is a valuable skill. It is possible to find awe-inspiring moments in all different places. Therefore, actively look for the experiences that feed your own hunger for awe, be it through admiring the trees in your neighborhood, or seeing the goodness in others. Take the time to slow down and open your mind to those things which you do not fully understand. You will be the better for it—and, as your feelings of awe spread through acts of kindness, so will the rest of us.27. What can we learn from the passage?A. Meeting strangers often brings feelings of excitement.B. Even common daily events can lead to the feeling of awe.C. Uncommon events are usually related to the beauty of nature.D. Greater happiness can result from giving ourselves more attention.28. The words “put our worries into perspective” in Paragraph 3 probably mean “________”.A. get used to our worries completelyB. deal with our worries as soon as possibleC. share our worries with family and close friendsD. understand the actual importance of our worries29. A person who has just experienced awe will probably ______.A. readily reach out to those in needB. report feeling more self-importantC. separate himself from the rest of a groupD. be unwilling to work with others on a team30. What is the writer's main purpose in writing this passage?A. To show us ways to understand what awe is.B. To explain to us how awe can improve health.C. To encourage us to be ready to experience awe.D. To advise us to free ourselves from the fear of awe.四、任务型阅读-简答（本大题共1小题，共10.0分）31.No artist requiredOne day, Ammaar Reshi was playing around with a chatbot called ChatGPT, a computer program using artificial intelligence (AI) to copy the way human beings think and write. Reshi then came up with an idea to use the AI program to make a children's book. The story of the book camefrom a conversation Reshi had with the chatbot, about a girl called Alice. And then he used another AI program, Midjourney, to make illustrations(插图)for the book. Midjourney is a new AI-powered tool that can turn words into amazing artwork, like pictures.The book, Alice and Sparkle, was done in just a couple of days. "Anyone can use these AI tools," Reshi said. "And they're not hard to use."Reshi posted about the book online after it was finished. Heated argument about it started at once. Some people liked the lovely story as well as the beautiful illustrations and praised Reshi for his smartness. But not everyone welcomed the birth of the special book. Among them, artists were especially critical of it. They think the way the illustrations were made was a big problem. Midjourney searches through millions of pictures created by artists on the Internet. And then it manages to find patterns(式样) in those pictures and create new ones based on the patterns. Artists often upload their work online for people to enjoy. But Midjourney could be using their work without permission(允许)."The main problem to me about AI is that it was taken from artists'work," illustrator Adriane Tsai says. "It's our creations, our personal styles that we did not permit them to use."Many artists and writers are nervous about the future. Will people pay for their work if it can be done cheaper by using AI programs?Some companies are already choosing AI over human talent. The San Francisco Ballet used pictures made with Midjourney to improve its production of the classic The Nutcracker. At a funny performance club, an AI-powered robot told jokes that made people laugh out loud. Journalist Abraham Riesman said, "It's deeply troubling to see people looking for cheap alternatives(替代品) to actual human writing."Reshi says technology companies should protect artists and writers whose work might be used by AI tools. He suggests that they should involve artists and writers in the process of creation.(1) What is Midjourney?________________________________(2) How long did it take the AI programs to create the book Alice and Sparkle?____________________________________________________________________________ _____(3) What is Reshi's advice to technology companies to protect artists and writers?____________________________________________________________________________ ________(4) Do you think it is a good idea to use AI programs in the process of creation? Why or whynot?(Give at least two reasons)________________________________________________________________________________ ______________五、信息匹配（本大题共3小题，共6.0分）下面的材料分别介绍了三种趣味环保活动，请根据左栏中所描述的Peter, Lily 和Michael 三个人各自的特点，帮助他们选择合适的活动，并将活动对应的序号A、B、C 填写在相应的位置上。
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启用前：绝密
北师大版九年级第一次月考
数学试题
（全卷共五个大题，满分：120分 考试时间：120分钟）
一 选择题（每小题3分，共30分）
1、下列方程是关于x 的一元二次方程的是（ ） A 、2x +3y -4=0 B 、32x -3x -5=0 C 、21
x +
-2=0x
D 、2x +1=0 2、用公式法解方程26x -8=5x 时，a 、b 、c 的值分别是（ ） A 、5、 6、-8 B 、5、-6、-8 C 、5、 -6、8 D 、6、5、-8 3、 观察下列表格，求一元二次方程2x -x =1.1的一个近似解是（ ）
4、 下面是王佳同学在一次测验中解答填空题的情况其中答对的是（ ） A 、若2x =4,则x=2 B 、方程()x 2x -1=2x -1的解为x=1 C 、若的一个根为1,则k=-3
D 、若分式2x -3x+2
x-1的值为零,则x=1或2
5、到三角形三条边的距离相等的点是三角形（ ）的交点 （A ）三个内角平分线 （B ）三边垂直平分线 （C ）三条中线
（D ）三条高线
6、如图，D 在AB 上，E 在
AC 上，且∠B ＝∠C ，那么补充下列一个条件后仍然无法判定△ABE ≌△ACD 的是（ ）
（A ）AD ＝AE （B ）∠AEB ＝∠ADC （C ）BE ＝CD （D ）AB ＝AC
第6题图 第7题图 第8题图
7、如图∠AOP=∠BOP=15°,PC ∥OA 交OB 于C ，PD ⊥OA 垂足为D ，若PC=4,则PD 为（ ）
H D E
F
C
A
O
D
A
B
C
P
A 、4
B 、3
C 、2
D 、1
8、如图，在△ABC 中，D 、E 、F 分别为BC 、AC 、AB 的中点， AH ⊥BC 于点H ，FD=8cm ，则HE 的值为（ ）．
A ．20 cm
B ．16 cm
C ．12 cm
D ．8 cm
9、矩形ABCD 沿对角线BD 折叠，点C 落在点F ，若AB=2，BC=4，则BE 的长是（ ） A 、
25 B 、2
3
C 、2
D 、1 10．如图，在矩形ABCD 中，AB=3，AD=4，P 是AD 上的动点，P
E ⊥AC 于E ，P
F ⊥BD 于F ，则PE+PF 的值为（ ）
A.2
B.25
C.5
D.512
第9题图 第10题图
二 填空题（每小题3分，共18分）
11、关于x 的一元二次方程01)1(22=-++-a x x a 有一个根为0，则a 的值是 。
12、由于甲型H1N1流感（起初叫猪流感）的影响，在一个月内猪肉价格两次大幅下降．由原来每斤16元下调到每斤9元，求平均每次下调的百分率是多少？设平均每次下调的百分率为x ，则根据题意可列方程为 ．
13、 用反证法证明命题“三角形中至少有一个内角大于或等于60°”，第一步应假设 。
14、如图，已知AB ＝AC ，∠A ＝440，AB 的垂直平分线MN 交AC 于点D ，则∠DBC ＝ 。
15、如图，某花木场有一块如图的等腰梯形ABCD 的空地，各边的中点分别是E 、F 、G 、H ，用篱笆围成的四边形EFGH 场地的周长为40cm ，则对角线 AC= 。
第14题图 第15题图 16．把边长为3的正三角形各边三等分，分割得到图①，图中含有1个边长是1的正六
边形；
把边长为4的正三角形各边四等分，分割得到图②，图中含有3个边长是1的正六边形；
把边长为5的正三角形各边五等分，分割得到图③，图中含有6个边长是1的正六
_P _O
_F _E _D _C _B _A A B C
D F E
C M B D
N
A
边形；
…依此规律，把边长为7的正三角形各边七等分，并按同样的方法分割，得到的图形中含有 个边长是1的正六边形．
北师大版九年级第一次月考
数学答 题 卷
（全卷共五个大题，满分：120分 考试时间：120分钟）
总成绩：
…
图①
图②
图③
11、 12、 13 、 14、 15、 16、
三、解答题：（本大题3个小题，17题每小题5分，18题6分，共16分）解答时每小题必须给出必要的演算过程或推理步骤。
17、解下列方程
（1）、23x =4x （2）、2y +6y =1
18、用配方法解方程：22t -6t +3=0
四、解答题：（本大题6个小题，共46分）解答时每小题必须给出必要的演算过程或推理步骤。
19、（8分）尺规作图：（要求：写出已知、求作，，保留作图痕迹，不写作法。
） 已知：如图线段a,线段b 。
求作：等腰三角形ABC ，使得三角形的底边BC 等于a,高AD 等于b.
a
b
20、（8分）如图，在等边△ABC 中，已知点D 、E 分别在BC 、AB 上，且BD=AE ，AD 与CE 交于点F 。
（1）求证：AD=CE （2）求∠DFC 的度数。
F
D
E C B
A
21、（6分）已知关于x的一元二次方程x2 + 2（k－1）x + k2－1 = 0有两个不相等的实数根．求实数k的取值范围；
(1)请你分别观察、、与之间的关系，并用含自然数(≥2)的代数式表示：a= ，b= ，c= .
(2)猜想：以a、b、c为边的三角形是什么特殊三角形？并证明你的猜想.
23、（8分）我校原有一块正方形空地，后来在这块空地上划出部分区域栽种花草（如图），原空地一边减少了1m，另一边减少了2m，使剩余的空地面积为12m2，求原正方形的边长。
24、（8分）阅读下面的材料：
2
ax +bx +c =0(a ≠0)的根为，12x =
=2a 2a
∴12-2b b x +x ==-,2a a
22122
b -(b -4ac)c
x x ==.4a a 综上所述得，设2ax +bx +c =0(a ≠0)的两根为1x 、2x ，则有： 1212b c
x +x =-
, x x =.a a
请利用这一结论解决下列问题：
（1）若2x +bx +c =0的两根为1和3，求b 和c 的值。
（4分） （2）设方程22x +3x +1=0的根为
1x 、2x ，求
的值。
（4分）
五、解答题：( 解答时每小题必须给出必要的演算过程或推理步骤。
）
25、（10分）某商店经销一种销售成本为每千克40元的水产品，据市场分析，若按每千克50元销售，一个月能售出500千克；销售单价每涨1元，月销售量就减少10千克。
针对这种水产品的销售情况，请解答以下问题：
（1）当销售单价定为每千克55元时，计算月销售量和月销售利润。
（2分）
（2）商店要想在月销售成本不超过10000元的情况下，使得月销售利润为8000元，销售单价应定为多少？ （8分）。