2021-2022学年上海市虹口区高三(上)期末英语试卷(一模)
2021-2022学年上海市虹口区高三（上）期末英语试卷（一模）
1.（问答题，1分）A.Colleagues.
B.Classmates.
C.Mother and son.
D.Employer and employee.
2.（问答题，1分）A.She is not feeling very well today.
B.She thinks that the weather is pleasant.
C.She has been staying up quite late recently.
D.She has been working hard for too long a time.
3.（问答题，1分）A.Lucy is not happy with the ban on pet animals.
B.Lucy might as well send her dog to her relative.
C.Lucy won't be able to keep a dog in the building.
D.Lucy should get rid of her pet as soon as possible.
4.（问答题，1分）A.He is likely to help.
B.He has already asked for help.
C.He was the last one to use the computer.
D.He does not know a lot about computers.
5.（问答题，1分）A.He will continue to work in the garden himself.
B.They should finish the work as soon as possible.
C.He is tired of doing gardening on weekends.
D.They can hire a gardener to do the work.
6.（问答题，1分）A.They will raise the issue in their presentation.
B.They will find more relevant information for their work.
C.They will make use of whatever information is available.
D.They will put more efforts into preparing for the presentation.
7.（问答题，1分）A.He did not take the symptoms of his illness seriously.
B.He was not aware of his illness until diagnosed with it.
C.He is anxious to find a cure for his high blood pressure.
D.He doesn't think high blood pressure is a problem for him.
8.（问答题，1分）A.Dr.Johnson may not be a good choice.
B.Dr.Johnson's waiting room is not tidy.
C.Dr.Johnson enjoys reading magazines.
D.Dr.Johnson is really a good dentist.
9.（问答题，1分）A.It isn't a good idea to buy the T-shirt.
B.The printing on her T-shirt has faded.
C.It isn't in fashion to have a logo on a T-shirt.
D.She regrets having bought one of the T-shirts.
10.（问答题，1分）A.He has been bumping along for hours.
B.He is trapped in a terrible traffic jam.
C.He is involved in a serious accident.
D.He has got a sharp pain in the neck.
11.（问答题，4.5分）（1）A.Real artist works in the past.
B.Popularity of secondhand books.
C.A real bargain in local bookstores.
D.A new fashion about secondhand goods.
（2）A.They made furniture not for making money.
B.They sell secondhand jewels as well as furniture.
C.They were serious about making furniture for fashion. D.They devoted themselves to creating real artistic works.
（3）A.People appreciate the real crafts of the old craftsmen.
B.Secondhand goods are usually good yet not expensive.
C.Secondhand stores will become less and less in the future.
D.Secondhand goods are more valuable than apartment houses.
12.（问答题，4.5分）（1）A.A character in a popular animation.
B.A cutting-edge app in digital games.
C.A teaching tool under development.
D.A tutor for computer science students.
（2）A.They encourage them to give immediate feedback.
B.They use various ways to explain the materials.
C.They ask them to design their own questions.
D.They motivate them to think independently.
（3）A.Their sense of responsibility.
B.Their emotional involvement.
C.The learning strategy acquired.
D.The teaching experience gained.
13.（问答题，6分）（1）A.They are both worried about the negative impact of technology.
B.They differ greatly in their knowledge of modern technology.
C.They disagree about the future of AI technology.
D.They work in different fields of AI technology.
（2）A.Stimulating and motivating.
B.Simply writing AI software. C.More demanding and requiring special training.
D.Less time-consuming and focusing on creation.
（3）A.There could be jobs nobody wants to do.
B.Digital life could replace human civilization.
C.Humans would be tired of communicating with one another.
D.Old people would be taken care of solely by unfeeling robots.
（4）A.It will be smarter than human beings.
B.Chips will be inserted in human brains.
C.It will take away humans' jobs altogether.
D.Life will become like a science fiction film.
14.（填空题，10分）
Something to Boast about
Are your information data safe and reliable？
In an ideal world such data,however informative and exploratory they are, （1）___ a
scientific study is based on should be,if not publicly available,then at least available to other
researchers.Sadly,this is not always the case. Many scientists are still quite unwilling to have their data revealed though attitudes are
changing.This attitude, （2）___ selfish,is understandable.
But sometimes it can cover a darker secret.The statistics presented in a paper may have been
controlled to achieve a desired result.The author may,in other words,have cheated.If he releases
the data,that cheating will be obvious.
Now Sean Wilner and his colleagues （3）___ （come） up with a way of reconstructing all
the possible data sets that could have given rise to that result,which includes （4）___ （release）
the data.And they call the way CORVIDS （Complete Recovery of Values in Diophantine
Systems）.
（5）___ （simplify） the task of spotting abnormal data,CORVIDS turns the possible data
上海市虹口区2020-2021学年九年级上学期期末(一模)英语试题
虹口区2020~2021学年度第一学期期末质量调研
初三英语
(满分：150分，考试时间：150分钟)
考生注意：本卷有7大题。试题均采用连续编号，所有答案务必按照规定在答题纸上完成，做在试卷上不给分。
Part 1 Listening（第一部分 听力）
I. Listening Comprehension (听力理解) (共25分)
A. Listen and choose the right picture (根据你听到的内容，选出相应的图片) (5分)
1. ___________ 2. ___________ 3. ___________ 4. ___________ 5. ___________
B. Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题，选择最恰当的答案) (5分)
6. A) She is going to work. B) She is going to school.
C) She is going to the hospital. D) She is going to the supermarket.
7. A) Because the soup is delicious. B) Because the soup is cheap.
C) Because the soup is hot. D) Because the soup smells nice.
8. A) She went to the tea house. B) She watched a game.
C) She acted in a play. D) She saw a play.
9. A) Because he doesn’t have coffee before lunch.
上海市虹口区2020-2021学年第一学期一模考试 高三年级 英语 试卷及参考答案
虹口区高三英语第1页虹口区2020学年度第一学期期终学生学习能力诊断测试高三英语试卷2020.12I.ListeningComprehensionSectionADirections:InSectionA,youwillheartenshortconversationsbetweentwospeakers.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Theconversationsandthequestionswillbespokenonlyonce.Afteryouhearaconversationandthequestionaboutit,readthefourpossibleanswersonyourpaper,anddecidewhichoneisthebestanswertothequestionyouhaveheard.1.A.Inabookstore.B.Inalibrary.C.Atabookfair.D.Atanartcenter.2.A.Relieved.B.Delighted.C.Favorable.D.Doubtful.3.A.Shehasmadehervacationplans.B.Shehaswastedpilesofpaper.C.Shewillcontinueherworkonnature.D.Shehastoomuchworktodo.4.A.Sheisdoingcharityworkontheclothes.B.Sheisworkinghardforthecomingexam.C.Sheislookingforwardtoattendingtheparty.D.Sheisbusypreparingforthefashionshow.5.A.Thegalleryisagoodplacefortheexhibition.B.Preparingfortheexhibitionwon’tbeeasy.C.Thewomanisn’ttellingthetruthabouttheoffer.D.Thewomanismakingadeadlydecision.6.A.Hegotatickettotheworkshop.B.Hedidn’tworkverycarefully.C.Heusedtodrivecarelessly.D.Hewasfinedsomedaylastweek.7.A.Theysharethesameopiniononthecandidate.B.TheyarebothelectedpresidentoftheStudentUnion.C.Theyarereadingthesamepageofthemostrecentissue.D.TheyweremadatthecandidateforthepresidentoftheStudentUnion.8.A.Hemissedthebeginningofthedocumentary.虹口区高三英语第2页B.Hefellasleepbeforethedocumentaryended.C.Heenjoyedtheendofthedocumentary.D.Hedidn’tseethedocumentaryatall.9.A.Continuewiththework.B.Callsomeoneforhelp.C.Stopworkingtoday.D.Getitdonenextweek.10.A.Dr.Smithdidn’tputthemanonhisschedule.B.Dr.SmithisverybusyonMondays.C.Dr.Smithusuallyseespatientsatonce.D.Dr.Smithishardtosee.SectionBDirections:InSectionB,youwillheartwoshortpassagesandonelongerconversation,andyouwillbeaskedseveralquestionsoneachofthepassagesandtheconversation.Thepassagesandtheconversationwillbereadtwice,butthequestionswillbespokenonlyonce.Whenyouhearaquestion,readthefourpossibleanswersonyourpaperanddecidewhichonewouldbethebestanswertothequestionyouhaveheard.Questions11through13arebasedonthefollowingpassage.11.A.Howtoeatchocolatewithoutgainingweight.B.Theharmfuleffectsofeatingmilkchocolate.C.Theeffectsofeatingchocolateonemotions.D.Thehealthbenefitsofeatingchocolate.12.A.Eatingasmallamountofchocolateledtopositiveemotions.B.Higherbloodpressureresultedfromhavingnochocolateatall.C.Abalanceddiet,kchocolateisabsolutelynotgoodforpeopleatall.13.A.Peoplewhoplantochangetheirdiet.B.Peoplewhoexerciselessoften.C.Peoplewhoeatchocolateregularly.D.Peoplewhowanttoloseweight.Questions14through16arebasedonthefollowingpassage.14.A.Thepopularityoftravelguidebooks.B.Thedeclineoftravelguidebooks.C.Thecloseconnectionbetweenguidebooksandtravelers.虹口区高三英语第3页D.Travelguidebooks’abilitytomakemoney.15.A.Socialnetworks.B.Travelguidebooks.C.Clerksfromtravelbusiness.D.Hotelreception.16.A.Itshighprice.B.Itslackofcultivationofindividuality.C.Itsincompleteintroduction.D.TheriseoftheInternet.Questions17through20arebasedonthefollowingconversation.17.A.HowIndianfoodismade.B.WhyEnglishfoodsareoftentasteless.C.Whyfoodsinsomecountriesarespicy.D.HowspicyfoodwasintroducedintoEngland.18.A.Thefoodincoldregionsisusuallytasty.B.Theclimatehaslittleeffectonthelocalfood.C.IndiaandEnglandhavequitesimilarclimates.D.Spicyfoodcausespeopletosweat,coolingthemoff.19.A.Becausetheycoverthebadsmellsoffood.B.Becausetheygivethefoodauniqueflavor.C.Becausetheyslowdownthegrowthofbacteria.D.Becausetheycomeinhandywherethereisnorefrigerator.20.A.Thementionofgarlicandonionmakesthewomanhungry.B.Theuniqueflavoroftheplantshascontributedtotheirsurvival.C.Theplantsandbacteriacanliveinharmonytosomeextent.D.Ittakesalongertimeforthoseplantslikeonionsandgarlictogrow.II.GrammarandVocabularySectionADirections:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.TheRiseofRobot-Chefs虹口区高三英语第4页CREATORisanewhamburgerjointinSanFrancisco.Itnowclaimstodeliveraburgerworth$18for$6--inotherwords,(21)______(provide)thequalityassociatedwithexpensiverestaurantsatafast-foodprice.Whatmattersbehindthisclaimisthatitschefisarobot.Creator’sburgerrobotisatrolley-sizedunitthathasafootprintoftwosquaremetres.Customerssendittheirordersviaatablet.Theyareabletocookeverythingfrom(22)______well-donetheburgerwillbetothetypeofcheeseandtoppingstheywant.Theprocesssoundsrathersimplenow.But,infact,themachinetookeightyearstoperfectafterit(23)______(create).Asfarbackas2012,ameretwoyearsintotheproject,itwasdescribedas“95%reliable”,butthatisnotenoughforabusykitchen.Choppingtomatoeswasaparticularlytoughchallenge,butevendetailsliketheverytool(24)______packstheburgerintoabagwithoutsqueezingitweretrickyforthemachinetomaster.Onlynow,withamachinetomakereliably120burgersanhour,(25)______AlexVardakostas,theengineerbehindtheproject,andhisco-founders,amixtureoftechnologistsandcaterers,feelconfidentenoughtoopentheirfirstrestaurant.Creatorisnotalone.Otherrobotchefshavealreadybeenworking,(26)______(prepare)entiremeals,orsoonwillbe,inkitchensinotherpartsoftheworld.(27)__________________that,thisnewwaveofautomationcouldsignaladramaticshiftinthewaythefastfoodindustryemployspeople.Thatdoesnotnecessarilymean(28)______(employ)fewerstaff.Rather,moreofthemwillbeinroleswheretheycandirectlyhelpcustomers.“Creator’sgoalisnottobethemostautomatedand(29)______(human-centered)restaurant,butactuallynot,”saidVardakostas.Itistooearlytosaywhetherthisfirstwaveofrobotchefswilldevelopwellinsuchademandingenvironmentasthekitchen.(30)______itdoes,it’scertaintomarkachangeinourrelationshipwithcookery.Cookingcouldbesomethingpeoplechoosetodosimplyforthesheerpleasureofit.SectionBDirections:Fillineachblankwithaproperwordchosenfromthebox.Eachwordcanbeusedonlyonce.Notethatthereisonewordmorethanyouneed.A.stressedB.exhibitedC.revealsD.momentaryE.reluctanceF.unforgettableG.attachesH.amusedlyI.understatementJ.confusedlyK.deliveryTheCorrectAnswertotheQuestionTheusualanswertothegreeting“Howareyou?”isgenerally“Nottoobad.”Why?Becauseit’sall-purpose.Whateverthecircumstances,whatevertheconditions,“Nottoobad”willgetyouthrough.Onanaveragedayit__31__aconfusingmodesty.Ingoodtimesitimpliesadecentpessimism(悲观),akindof__32__toexpressoneself.Andwhenthingsarerough,reallyroughandannoying,itbecomesaheroic__33__,asifeverythinggoeswell.Bestofall,itgentlypreventsfurtherinquirywithallthreesyllables(音节)equally__34__,becauseitis--basically--meaningless.Americansaresmall-talkartists.Theyhavetobe.Thisisawildcountry.Theweakestagreement__35__onepersontothenext.Sothe“Haveaniceday”,the“Hotenoughforyou”,andthe“Howaboutthoseguys”serveavitalpurpose.Withouttheselittlecommonly-usedphrasesandthe__36__socialcontractthattheyrepresent,tocalmpeople,thestreetswouldbeafree-for-allexhibitionofdisaster.
2020-2021学年上海市杨浦区高三上学期期末英语试卷
第1页（共46页）
2020-2021学年上海市杨浦区高三（上）期末英语试卷（一模）
I.Listening ComprehensionSection ADirections： In Section A， you will hear ten short
conversations between two speakers. At the end of each conversation， a question will be
asked about what was said. The conversations and the questions will be spoken only once.
After you hear a conversation and the question about it， read the four possible answers on
your paper， and decide which one is the best answer to the question you have heard.
1．A. Professor and student.
B. Employer and employee.
C. Interviewer and interviewee.
D. Salesperson and client.
2．A. It was a very special production.
B. It was a little disappointing.
C. It was full of exciting action.
D. It was as exceptional as expected.
3．A. He doesn't like the view.
B. He doesn't trust elevators.
C. He is afraid of height.
2021-2022学年上海市宝山区九年级(上)期末物理试卷(一模)
第1页（共11页）
2021-2022学年上海市宝山区九年级（上）期末物理试卷（一模）
一、选择题（本大题共6题，每题2分，共12分，每题只有一个正确选项）
1．（2分）在国际单位制中，电流的单位是（ ）
A．库仑 B．安培 C．欧姆 D．伏特
2．（2分）在日常生活中，大型平板车的轮胎多而宽，其目的是为了（ ）
A．增大压力 B．减小压力 C．增大压强 D．减小压强
3．（2分）历史上首先用实验测出了大气压强值的科学家是（ ）
A．牛顿 B．阿基米德 C．托里拆利 D．伽利略
4．（2分）在如图所示的实例中，利用连通器原理工作的是（ ）
A．离心式水泵 B．船闸
C．用管子吸饮料 D．吸尘器
5．（2分）如图所示，两个圆柱形容器A、B，盛有体积相同的同种液体且放置在水平桌面上。若两容器底部受到的液体压力分别为FA、FB，受到的液体压强分别为pA、pB，则它们的关系是（ ）
A．FA＝FB、pA＞pB B．FA＝FB、pA＜pB
C．FA＞FB、pA＝pB D．FA＜FB、pA＝pB
6．（2分）在如图的电路中，电源电压保持不变，电阻R0的阻值不变。闭合开关S，移动滑动变阻器R的滑片P，发现电流表A的示数变小，则（ ）
A．滑片P向左滑动，电压表V的示数变小
B．滑片P向左滑动，电压表V的示数变大
第2页（共11页）
C．滑片P向右滑动，电压表V的示数变小
D．滑片P向右滑动，电压表V的示数变大
二、填空题（本大题共7题，共24分）
7．（3分）一节干电池的电压为
伏，教室中日光灯正常工作的电压为
伏，电灯和控制电灯的开关之间是 连接的（选填“串联”或“并联”）。
8．（3分）冰的密度为0.9×103千克/米3，表示每立方米冰的 为0.9×103千克。一块质量为18千克冰的体积为 米3，若它完全熔化成水，其密度 （选填“变大”、“不变”或“变小”）。
2021-2022学年上海市青浦区九年级(上)期末数学试卷(一模)
第1页（共25页）
2021-2022学年上海市青浦区九年级（上）期末数学试卷（一模）
一、选择题：（本大题共6题，每小题4分，满分24分）[每题只有一个正确选项，在答题纸相应题号的选项上用2B铅笔正确填涂]
1．（4分）（2021秋•青浦区期末）下列图形，一定相似的是（ ）
A．两个直角三角形 B．两个等腰三角形
C．两个等边三角形 D．两个菱形
2．（4分）（2021秋•青浦区期末）如图，已知AB∥CD∥EF，它们依次交直线l1、l2于点A、C、E和点B、D、F．如果AC：CE＝2：3，BD＝4，那么BF等于（ ）
A．6 B．8 C．10 D．12
3．（4分）（2021秋•青浦区期末）在Rt△ABC中，∠C＝90°，那么cotA等于（ ）
A． B． C． D．
4．（4分）（2021秋•青浦区期末）如图，点D、E分别在△ABC的边AB、BC上，下列条件中一定能判定DE∥AC的是（ ）
A． B． C． D．
5．（4分）（2021秋•青浦区期末）如果（、均为非零向量），那么下列结论错误的是（ ）
A． B．∥
C． D．与方向相同
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6．（4分）（2021秋•青浦区期末）如图，在平行四边形ABCD中，点E在边BA的延长线上，联结EC，交边AD于点F，则下列结论一定正确的是（ ）
A． B． C． D．
二、填空题：（本大题共12题，每小题4分，满分48分）[请将结果直接填入答题纸的相应位置]
7．（4分）（2021秋•青浦区期末）已知线段b是线段a、c的比例中项，且a＝1，b＝3，那么c＝
．
8．（4分）（2021秋•青浦区期末）计算：3﹣2（﹣2）＝ ．
9．（4分）（2021秋•青浦区期末）如果两个相似三角形的周长比为2：3，那么它们的对应高的比为 ．
10．（4分）（2021秋•青浦区期末）二次函数y＝﹣x2﹣x﹣1的图象有最 点．（填“高”或“低”）
2021-2022学年上海市普陀区九年级(上)期末语文试卷(一模)
2021-2022学年上海市普陀区九年级（上）期末语文试卷（一模）
一、文言文。（36分）
1．默写与运用
（1）无可奈何花落去， （晏殊《浣溪沙》）。
（2） ，病树前头万木春。（刘禹锡《酬乐天扬州初逢席上见赠》）
（3）居庙堂之高则忧其民， （范仲淹《岳阳楼记》）
（4）小朴的小提琴拉得出神入化，同学们向他讨教经验，他回答：“这就和《论语》中记载的孔子所说的‘ ’一样，我不仅喜欢拉小提琴，更重要的是每次演奏都让我乐在其中。”
2．阅读下面两段文言文，完成问题。
【甲】
初，权谓吕蒙曰：“卿今当涂掌事，不可不学！”蒙辞以军中多务。权曰：“孤岂欲卿治经为博士邪！但当涉猎，见往事耳。卿言多务，孰若孤？孤常读书，自以为大有所益。”蒙乃始就学。及鲁肃过寻阳，与蒙论议，大惊曰：“卿今者才略，非复吴下阿蒙！”蒙曰：“士别三日，即更口口口口，大兄何见事之晚乎！”肃遂拜蒙母，结友而别。
【乙】
初，策①杀吴郡太守许贡，贡奴客潜民间，欲为贡报仇。策性好猎，数出驱驰，所乘马精骏，从骑绝不能及。卒②遇贡客三人，射策中颊，后骑寻至，皆刺杀之。策创甚，召张昭等谓曰：“中国方乱，以吴、越之众，三江之固，足以观成败，公等善相吾弟！”呼权，佩以印绶，谓曰：“举江东之众，决机于两陈③之间，与天下争衡，卿不如我；举贤任能，各尽其心以保江东，我不如卿。”
【注】①策：孙策，三国时孙吴政权的奠基者之一，孙权之兄。②卒：突然。③陈：同“阵”，军队作战时的战斗队列。
（1）两文所述事件都发生在 时期：【甲】文节选自《 》一书。
（2）用现代汉语翻译【甲】文中画线句。
但当涉猎，见往事耳。
（3）解释【乙】文中加点词。
①数出驱驰．． 驱驰：
②从．骑绝不能及 从： （4）下列对【乙】文中画线句的理解，正确的一项是
A.你们要善于辅佐我的弟弟。
2020-2021学年上海市崇明区高三(上)期末英语试卷(一模)
第1页（共46页）
2020-2021学年上海市崇明区高三（上）期末英语试卷（一模）
I. Listening ComprehensionSection ADirections： In Section A， you will hear ten short
conversations between two speakers. At the end of each conversation， a question will be
asked about what was said. The conversations and the questions will be spoken only once.
After you hear a conversation and the question about it， read the four possible answers on
your paper， and decide which one is the best answer to the question you have heard.
1．（1分）A.At 5：50 p.m.
B.At 5：40 p.m.
C.At 6：30 p.m.
D.At 7：20 p.m.
2．（1分）A. In a bank.
B. In a cinema.
C. In a snack bar.
D. In a grocery store.
3．（1分）A. The coffee used to taste better.
B. He'd rather drink something different.
C. The coffee tastes the same as before.
D. He's surprised the woman drinks coffee.
4．（1分）A. Look for more information.
2021-2022学年上海市虹口区九年级上学期期末数学试卷(一模)(含答案解析)
2021-2022学年上海市虹口区九年级上学期期末数学试卷(一模)
一、选择题（本大题共6小题，共24.0分）
1. 如图(1)所示，𝐸为矩形𝐴𝐵𝐶𝐷的边𝐴𝐷上一边，动点𝑃，𝑄同时从点𝐵出发，点𝑃沿折线𝐵𝐸−𝐸𝐷−𝐷𝐶运动到点𝐶时停止，点𝑄沿𝐵𝐶运动到点𝐶时停止，它们运动的速度都是1𝑐𝑚/秒，设𝑃、𝑄同时出发𝑡秒时，△𝐵𝑃𝑄的面积为𝑦𝑐𝑚2.已知𝑦与𝑡的函数关系图象如图(2)(曲线𝑂𝑀为抛物线的一部分)则下列结论正确的是( )
A. 𝐴𝐵：𝐴𝐷=3：4
B. 当△𝐵𝑃𝑄是等边三角形时，𝑡=5秒
C. 当△𝐴𝐵𝐸∽△𝑄𝐵𝑃时，𝑡=7秒
D. 当△𝐵𝑃𝑄的面积为4𝑐𝑚2时，𝑡的值是√10或475秒
2. 已知非零向量𝑎⃗ 、𝑏⃗ 和𝑐⃗ ，下列条件中，不能判定𝑎⃗ //𝑏⃗ 的是( )
A. 𝑎⃗ =−2𝑏⃗ B. 𝑎⃗ =𝑐⃗ ，𝑏⃗ =3𝑐⃗
C. 𝑎⃗ +2𝑏⃗ =𝑐⃗ ，𝑎⃗ −𝑏⃗ =−𝑐⃗ D. |𝑎⃗ |=2|𝑏⃗ |
3. 若𝑦=(3+𝑚)𝑥𝑚2−9是开口向下的抛物线，则𝑚的值为( )
A. 3 B. −3 C. √11 D. −√11
4. 把抛物线𝑦=(𝑥−2)2向左平移2个单位长度，再向上平移2个单位长度，所得到的抛物线是( )
A. 𝑦=𝑥2+2 B. 𝑦=𝑥2−2
C. 𝑦=(𝑥+2)2−2 D. 𝑦=(𝑥+2)2+2
5. 如图，小王在长江边某瞭望台𝐷处，测得江面上的渔船𝐴的俯角为40°，若𝐷𝐸=3米，𝐶𝐸=2米，𝐶𝐸平行于江面𝐴𝐵，迎水坡𝐵𝐶的坡度𝑖=1：0.75，坡长𝐵𝐶=25米，则此时𝐴𝐵的长约为( )(参考数据：𝑠𝑖𝑛40°≈0.64，𝑐𝑜𝑠40°≈0.77，𝑡𝑎𝑛40°≈0.84) A. 10.4米 B. 12.4米 C. 27.4米 D. 22.4米
2021-2022学年上海市奉贤区九年级(上)期末数学试卷(一模)
第1页（共30页）
2021-2022学年上海市奉贤区九年级（上）期末数学试卷（一模）
一、选择题（本大题共6题，每题4分，满分24分）
1．（4分）（2021秋•奉贤区期末）在平面直角坐标系xOy中，下列函数的图象过点（﹣1，1）的是（ ）
A．y＝x﹣1 B．y＝﹣x+1 C．y＝ D．y＝x2
2．（4分）（2021秋•奉贤区期末）从图形运动的角度研究抛物线，有利于我们认识新的抛物线的特征．如果将抛物线y＝x2+2绕着原点旋转180°，那么关于旋转后所得新抛物线与原抛物线之间的关系，下列法正确的是（ ）
A．它们的开口方向相同 B．它们的对称轴相同
C．它们的变化情况相同 D．它们的顶点坐标相同
3．（4分）（2021秋•奉贤区期末）如果直线y＝2x与x轴正半轴的夹角为锐角α，那么下列各式正确的是（ ）
A． B． C． D．
4．（4分）（2021秋•奉贤区期末）如图，已知D是△ABC边AB上的一点，如果∠BCD＝∠A，那么下列结论中正确的是（ ）
A．AC2＝AD•AB B．BC2＝BD•AB C．CD2＝AD•BD D．AD2＝BD•CD
5．（4分）（2021秋•奉贤区期末）已知线段AB．按以下步骤作图：
（1）作以A为端点的射线AP（不与线段AB所在直线重合）；
（2）在射线AP上顺次截取AC＝CD＝DE；
（3）联结BE，过点D作DF∥BE，交线段AB于点F．
根据上述作图过程，下列结论中正确的是（ ）
A．AF：AB＝1：2 B．AF：AB＝1：3 C．AF：AB＝2：3 D．AF：AB＝2：1
6．（4分）（2021秋•奉贤区期末）在△ABC中，AB＝2，∠BAC＝30°．下列线段BC的长度不能使△ABC的形状和大小都确定的是（ ）
A．2 B．4 C． D．
第2页（共30页）
二、填空题（本大题共12题，每题4分，满分48分）
7．（4分）（2021秋•奉贤区期末）如果≠0，那么＝
上海市虹口区2021-2022学年九年级上学期期末质量检测数学试卷
试卷第1页，共5页 上海市虹口区2021-2022学年九年级上学期期末质量检测数学试卷
学校:___________姓名：___________班级：___________考号：___________
一、单选题
1．下列图形中一定是相似形的是（ ）
A．两个等腰三角形 B．两个菱形 C．两个矩形 D．两个正方形
2．在RtABC中，90C，12BC，5AC，那么cotB等于（ ）
A．513 B．1213 C．125 D．512
3．已知7ab，下列说法中不正确的是（ ）
A．70ab B．a与b方向相同 C．ab∥ D．7ab
4．下列函数中，属于二次函数的是（ ）
A．2yxx B．221yxx C．25yx D．22yx
5．在ABC中，点E、D、F分别在边AB、BC、AC上，联结DE、DF，如果DEAC∥，DFAB∥，:3:2AEEB，那么:AFFC的值是（
）
A．32 B．23 C．25 D．35
6．如图所示，一座抛物线形的拱桥在正常水位时，水面AB宽为20米，拱桥的最高点O到水面AB的距离为4米．如果此时水位上升3米就达到警戒水位CD，那么CD宽为（ ）
A．45米 B．10米 C．46米 D．12米
二、填空题
7．如果56mn，那么mnn______．
8．已知点P是线段AB的黄金分割点，AP＞PB．若AB＝2，则AP＝_____．
9．如果向量a、b、x满足1322xaab，那么x______（用向量a、b表示）．
10．二次函数y＝（m﹣1）x2+x+m2﹣1的图象经过原点，则m的值为_____． 试卷第2页，共5页 11．如果抛物线222yax开口向下，那么a的取值范围是______．
12．如果抛物线过点2,3，且与y轴的交点是0,3，那么抛物线的对称轴是直线______．