2017-2018学年度高二英才班阶段性测试
2017-2018学年度高二英才班阶段性测试
绝密*启用前 试卷类型 A永城高中2017-2018学年度高二英才班第一次月考物理试题本试题卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
学生作答时，将答案答在答题卡上(答题注意事项见答题卡)，在本试题卷上答题无效。
考试结束后，将本试题卷和答题卡一并交回。
考试时间：90分钟 满分：110分第Ⅰ卷一、选择题：本题共10题，每小题5分，共50分。
在每个小题给出的四个选项中，第l －7题只有一项符合题目要求，第8－10题有多个选项符合题目要求。
全部选对的得5分，选对但不全的得3分，有选错的得0分。
1．为电荷如图所示，abcde 是半径为r 的圆的内接正五边形，当在顶点a 、b 、c 、d 、e 处各固定有电荷量为＋Q 的点电荷时，O 点的电场强度为零；若在e 处固定有电荷量为－3Q 的点电荷，a 、b 、c 、d 各处仍量为＋Q 的点电荷，则圆心O 处的电场强度大小为A.4kQr 2 B.3kQ r 2 C.2kQ r2 D.kQ r2 2．如下图所示，真空中A 、B 两个点电荷的电荷量分别为＋Q 和＋q ，放在光滑绝缘水平面上，A 、B 之间用绝缘的轻弹簧连接．当系统平衡时，弹簧的伸长量为x 0.若弹簧发生的均是弹性形变，则A ．保持Q 不变，将q 变为2q ，平衡时弹簧的伸长量等于2x 0B ．保持q 不变，将Q 变为2Q ，平衡时弹簧的伸长量小于2x 0C ．保持Q 不变，将q 变为－q ，平衡时弹簧的缩短量等于x 0D ．保持q 不变，将Q 变为－Q ，平衡时弹簧的缩短量小于x 03．在点电荷Q 产生的电场中有a 、b 两点，相距为d ，已知a 点的场强大小为E ，方向与ab 连线成30°角，b 点的场强方向与ab 连线成120°角，如图所示，则点电荷Q 的电性和b 点的场强大小为A ．正电、E /3B ．负电、E /3C ．正电、3ED ．负电、3E4．如右图所示的电路中，E 为电源，其内阻为r ，L 为小灯泡(其灯丝电阻可视为不变)，R 1、R 2为定值电阻，R 3为光敏电阻，其阻值大小随所受照射光强度的增大而减小，为理想电压表．若将照射R 3的光的强度减弱，则A ．电压表的示数变大B ．小灯泡消耗的功率变小C ．通过R 2的电流变小D ．电源内阻消耗的电压变大5．如图所示，电路中R 1、R 2均为可变电阻，电源内阻不能忽略，平行板电容器C 的极板水平放置．闭合电键S ，电路达到稳定时，带电油滴悬浮在两板之间静止不动．如果仅改变下列某一个条件，油滴仍能静止不动的是A ．增大R 1的阻值B ．增大R 2的阻值C ．增大两板间的距离D ．断开电键S6．如图所示，MN 为足够大的不带电薄金属板，在金属板的右侧，距离为d 的位置上放入一个电荷量为＋q 的点电荷O ，由于静电感应产生了如图所示的电场分布．P 是金属板上的一点，P 点与点电荷O 之间的距离为r ，则P 点的电场强度的A ．方向沿P 点和点电荷的连线向左，大小为2kqdr3B ．方向沿P 点和点电荷的连线向左，大小为2kq r 2－d 2r 3C ．方向垂直于金属板向左，大小为2kqdr 3D ．方向垂直于金属板向左，大小为2kq r 2－d 2r 37．如图1所示，半径为R 的均匀带电圆形平板，单位面积带电量为σ，其轴线上任意一点P (坐标为x )的电场强度可以由库仑定律和电场强度的叠加原理求出：E ＝2πkσ⎥⎦⎤⎢⎣⎡+-221x R x，方向沿x 轴．现考虑单位面积带电量为σ0的无限大均匀带电平板，从其中间挖去一半径为r 的圆板，如图2所示．则圆孔轴线上任意一点Q (坐标为x )的电场强度为( )A ．2πkσ022xR x B ．2πkσ022xR rC ．2πkσ0xrD ．2πkσ0rx8．如图所示，曲线C 1、C 2分别是纯直流电路中内、外电路消耗的电功率随电流变化的图线，由该图可知下列说法正确的是A ．电源的电动势为4 VB ．电源的内电阻为1 ΩC ．电源输出功率最大值为8 WD ．电源被短路时，电源消耗的功率为16 W9．如图所示，氕核、氘核、氚核三种粒子从同一位置无初速地飘入电场线水平向右的加速电场E 1，之后进入电场线竖直向下的匀强电场E 2发生偏转，最后打在屏上．整个装置处于真空中，不计粒子重力及其相互作用，那么A ．偏转电场E 2对三种粒子做功一样多B ．三种粒子打到屏上时的速度一样大C ．三种粒子运动到屏上所用时间相同D ．三种粒子一定打到屏上的同一位置10．右图中三实线a 、b 、c 表示三个等势面．一个带电粒子射入电场后只在静电力作用下沿虚线所示途径由M 点运动到N 点，由图可以看出，下列说法错误的是A ．三个等势面的电势差是φa >φb >φc B ．三个等势面的电势关系是φa <φb <φc C ．带电粒子在N 点的动能较小，电势能较大 D ．带电粒子在N 点的动能较大，电势能较小第Ⅱ卷二、非选择题:本题共6小题，共60分。
2017-2018学年上)期高二年级第一次阶段考试
2017-2018学年(上)期高二年级第一次阶段考试使用日期：2017-10-26本试卷分为第I 卷(选择题) 和第II卷 (非选择题）两部分。
满分150分，考试时间120分钟。
第I卷第一部分听力（共两节, 满分30分）第一节听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where are the speakers going to eat lunch?A. At home.B. At a cafe.C. At a park.2. What do we know about Jerry?A. He has asked for sick leave.B. He has gone to visit his mother.C. He has found a new job in Europe.3. What will the man do tomorrow?A. Buy some new software.B. Attend a computer course.C. Teach Ann to use her new software.4. What is the woman going to make today?A. Cups.B. A big vase.C. Some flowers.5. Why does the woman want to buy a clock?A. She has trouble waking up.B. Her old clock broken down.C. It is a gift for someone.第二节听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
四川省雅安中学2017-2018学年高二上学期入学考试英语试题 Word版含答案
雅安中学2017-2018学年上期高二年级入学考试英语第Ⅰ卷第一部分听力（共两节，满分30分）第一节（共5小题；每小题1. 5分，满分7. 5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.When does the drama start?A.At 8:00.B.At 7:40.C.At 8:20.2.What will the man have for breakfast?A.Eggs.B.Bread.k.3.What’s the relationship between the speakers?A. Teacher and student.B. Doctor and patient.C. Shop owner and customer.4.Who is probably the woman?A. A restaurant waitress.B. A hotel clerk.C. A librarian.5.What kind of music does the man like better?A.Rock music.B.Light music.C.Classical music.第二节（共15小题；每题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A，B，C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6至7题。
6. Why did the man go to Europe?A. To travel.B. To attend meetings.C. To meet someone.7. What’s the professor’s name?A. Jackson.B. Johnson.C. George.听下面一段对话，回答第8和第9两个小题。
宁夏育才中学勤行学区2017-2018学年高二上学期入学考试英语试题含答案
学必求其心得，业必贵于专精宁夏育才中学勤行学区2017—2018学年第一学期高二检测试题(试卷满分150分,考试时间为120 分钟）第一部分：听力（共两节，满分30分）第一节（每小题1。
5分，满分7.5分）第一部分：听力（共两节，满分30分）第一节：(共5小题；第小题1.5分,满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C 三个选项中选出最佳答案，并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1。
What does the man think of the soup?A。
Tasty B. Delicious C. Healthy2。
What can we know about the woman？A. She doesn’t think the chicken is good。
B. She thinks the dinner was great.C. She thinks the roast beef was dry。
3。
What does the woman mean？A. She would like to go out for dinner.B. She does not want to go to the concert.C。
She is bored with concerts.4。
Where does this conversation probably take place？A。
In a restaurant。
B。
In a post office。
C. In a shop5. How many books can Angela borrow at most today?A。
Two B. Three C。
Four。
第二节（每小题1。
5分,满分22.5分）听下面5段对话或独白.每段对话后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置.听每段对话前，你将有时间阅读各个小题，每小题5秒钟;听完后,各个小题将给出5秒钟的作答时间。
辽宁省东北育才学校2017-2018学年高二上学期第一次阶段测试英语试题 Word版含答案
2017-2018学年度上学期高二年级第一次阶段性考试英语科试卷本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。
满分150分，考试时间120分钟。
第一部分听力（共两节，满分30分）第一节（共5小题，每小题1.5分,共7.5分）听下面5段对话，每段对话后有一个小题, 从题中所给的A,B,C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What's the time now?A. 8:30.B. 7:55.C. 8:35.2.Why does the woman look sad?A. She did badly in the exams.B. She worries about her coming tests.C. She is ill.3.What do we learn about the taxi driver?A. He drove too fast and crashed into a truck.B. He turned suddenly and ran into a tree.C. He was hit by a falling box from a truck.4.What is the man doing?A. He is asking about his letter.B. He is buying plane tickets to Europe.C. He is sending some postcard.5.Where does the conversation mostly take place?A. In a restaurant.B. In the woman's house.C. In the market.第二节（共15小题，每小题1.5分，满分22.5分）听下面5段对话或独白。
2016---2017学年度高二英才班阶段性测试答题卷
请在各题目答题区域内作答，超出黑色矩形边框限定区域的答题无效请在各题目答题区域内作答，超出黑色矩形边框限定区域的答题无效
贴二维码处
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一、选择题：本题共10题，每小题5分，共50分。
选对但不全的得3分，有选错的得0分。
二、非选择题:本题共6小题，共60分。
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永城高中2016---2017学年度高二英才班阶段性测试
物理答题卷
班级：姓名：
考场号：座号：
选择题填涂说明
正确填涂：
错误填涂：
13、（10分）
11．（6分）(1)；(2)；。
12．（9分）(1)；。
(2)。
14、（10分）
请在各题目答题区域内作答，超出黑色矩形边框限定区域的答题无效请在各题目答题区域内作答，超出黑色矩形边框限定区域的答题无效
15（12分）
16（13分）。
上海交通大学附属中学2017-2018学年高二10月月考英语试题(word版无听力部分附答案)
上海交通大学附属中学 2017-2018学年度第一学期高二英语月考一试卷出卷人：张睿燕审稿人：朱雪艳（满分150分，130分钟完成答案一律写在网上阅卷答题纸上）II. GrammarandVocabulary(32')SectionADirections：BeneatheachofthefollowingsentencestherearefourchoicesmarkedA,B,C,and D. Choose the one answer that best completesthe sentence.21.T he local people have doubt this carpenter can make of such material.A.w hetherB.whatC.whichD. if22.thegoodsdisplayedinthesupermarket sosurprising thatIdon’t knowwhat to choose.A.variety of, areB.The variety of, is isC.Avarietyof, isD.The variety of, are23.The population ofthe earth increasing fast. one third of the populationhere workers.A.i s; areB. is; isC. are; isD. are; are24.A snightfelluponthetown,theassistants thelastordersso as to close the shop early,A.digested,fewB. rushed across, pieces ofC. rushed through, fewD. rushed into,pieces of25.theimportanceofholdingthe2017MovieFestivalsuccessfully,allcitizensaremaking every effort to work for the beauty of thecity of Shanghai.ARealize B.Aware of C. Encouraged by D. Beingaware of26.inamisunderstanding,abitterquarrelbetweenthetwoneighborshaslasted for two hours.A.OriginatedB. OriginatingC. BeingoriginatedD.Havingbeen originated27.There is only onething I'mnot in favor of in this restaurant-----thecoffee .A.serves coldB. is served coldlyC. serves coldlyD.is servedcold28.Itwasonlywhenthereservedtroopswerebroughtintoplaythatthebattleturned.A.to favor usB. in our favorC. to our favorD.in favor of us29.T he littleboy still needs the 30 dollars to do withsomethings .A.remaining;remained to be settledB. remaining;remainingto be settledC.remained;remainedto settleD. remained; remaining to settle30.Roughlyhalfthenation'scitizensliveoverseas,mostlyintheU.S.andAustralia,where theywork folks back home.A.helping to supportB. to helpsupportingC.to help support D. helpingsupporting31.Theinvestmentmoneywaswithdrawnfromthecountry,leavingsomeofitscitieswith abandoned constructionsA. litteringB. to litterC.to be litteredD. littered32. They searched for hours, but befound.A.at no time could the missingspoon.A. nowhere could the missingspoonC.nowhere the missing spooncouldD. nowhere can the missing spoonSection BDirections:Completethefollowingpassagebyusingthewordsinthebox.Eachwordcan only beused once.Note thatthere is one wordmore than you need.Junkfoodiseverywhere.We’re eatingwaytoomuchofit.Mostofusknowwhat we’re doing and yet we do it anyway.Sohere'sasuggestion_ 33bytworesearchersattheRandCorporation:Whynottakealess onfromalcoholcontrolpoliciesandapplythemtowherefoodissold and how it’s 34 ?"Manypolicymeasurestocontrolobesity （肥胖症）assumethatpeopleconsciouslyandrationallychoosewhatandhowmuchtheyeatandtherefo refocusonproviding informationand moreaccess to 35 foods,"note the tworesearchers."Incontrast,"theresearcherscontinue,"manyregulationsthatdon'tassumepeoplemak erationalchoiceshavebeensuccessfullyappliedtocontrolalcohol,asubstance--likefood--ofwhichimmoderate36 leadstoserioushealthproblems."Theresearchreferencesstudiesofp eople’s behaviorwithfoodandalcoholandresultsofa lcoholrestrictions,andthenlistsfiveregulationsthattheresearchersthinkmight be promising if appliedto junkfoods.Amongthem:Density _37 :licensestosellalcoholaren'thandedout 38toallcomers but are allotted （分配）based on the number of places in an area that alreadysell alcohol.These makealcohol less easy to getandreduce thenumberofpsychological cuesto drink.Similarly,theresearcherssay,beingpresentedwithjunkfood39 ourA.healthierB.stimulatesC.particularlyD.consumptionE.offeredF.displayedG.primarily K.peculiar H.special I.restrictions J.unplanneddesiretoeatit.Sowhynotlimitthedensityoffoodoutlets, 40onesthatsellfoodrichinemptycalories?Andwhynotlimitsaleoffoodinplacesthat aren’t41 food stores?Displayandsalesrestrictions:Californiahasaruleprohibitingalcoholdisplaysnearthecashre gistersingasstations,andinmostplaces youcan’tbuy alcoholatdrive-throughfacilities.Atsupermarkets,foodcompaniespaytohavetheirwaresinplaceswherethe y'reeasilyseen.Onecouldremovejunkfoodtothebackofthestoreandbanthemfromtheshelv esatcheckoutlines.Theothermeasuresincluderestrictingportionsizes,taxingandprohibiting42 price dealsforjunkfoods, and placing warning labels onthe products.(B)Tea —ABrief Historyof theNation'sFavoriteBeverageThe birth of tea in ChinaTeaisoftenthoughtofasbeingatypicallyBritishdrink,andwehavebeendrinkingit for over 350years, Butinfact the history of tea goesmuchfurther back.ThestoryofteabeginsinChina.Accordingtolegend,in2737BC,theChineseemperorSh enNungwassittingbeneathawhilehisservant43drinkingwater,whensomeleavesfromthetreeblewintothewater.ShenNung,arenownedh erbalist,decidedtotheinfusionthathissavanthad 44_created.Thetreewas Camellia sinensis drink and theresulting drink was what we now calltea.Itisimpossibletoknowwhetherthereisanytruthinthisstory.Butteadrinkingcertainlybe cameestablishedinChinamanycenturiesbeforeithadevenbeenheardofinthewest.Containe rsforteahavebeenfoundintombs45fromtheHandynasty(206BC220AD)'butitwasundertheTangdynastyAD),thatteabecamefirmly 46 as the nationaldrink of China. It becamesuch47thatduringthelateeighthcenturyawritercalledYuwrotethefirstbookentirelyAbouttea,theC h'aChing,orTeaClassic.Itwasshortlyafterthisthatteawag first 48 toJapan,by JapaneseBuddhistmonkswho had travelledtoChina to studyThegrowthof tea in EuropeSoatthisstageinthehistoryoftea,Europewagratherlaggingbehind.Inthelatterhalfofth esixteenthcenturytherearethefirstbriefmentionsofteaasadrinkamongEuropeans.Theseare 49 fromPortuguesewhowerelivingintheEastastradersandmissionaries(,Butalthoughsomeof theseindividualsmayhaveA.accidentallyB.establishedmercialD.datingE.introducedF.favoriteG.boiledH.turnJ.mostly K.originbroughtbacksamplesofteatotheirnativecountry,itwasnotthePortuguesewhowerethefirstt oshipbackt:asa 50 import.ThiswasdonebytheDutch,whointhelastyearsofthesixteenthcenturybegantoencro achonPortuguesetradingroutesintheEast,By'the 51 ofthecenturytheyhadestablishedatradingposton the islandof Java,anditwag viaJava thatin1606 the firstconsignmentof teawasshippedfromChinatoHolland,TeasoonbecameafashionabledrinkamongtheDutch, andfromtherespreadtoothercountriesincontinentalwesternEope,butbecause of its high priceit 52 drink for the wealthy.Ill.ReadingComprehensionSectionA ClozeDirections:ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA, B,C and D. Fill i)each blank with theword or phrase that bestfits the context.Inspiration"Mama,whenIgrowup,I'mgoingtobeoneofthose!"IsaidthisaftergeeingtheCapitalDa ncingCompanyperformwhenIwagthree.Itwasthefirsttimethatmydreamtookonavividfor mandactedassomethingimportanttostartmytraining.AsI grewolder and was 53 to more,myinterestsintheworldofdance54variedbutthatlittlegirl'sdreamofsomedaybecomingadancerinthecompanyneverleftme.In thesummerof2005whenIwas18,Ireceivedthephonecallwhichmadethatdreama55 ;Ibecameamemberofthecompany56 back to 1925.AsIlookbackonthatdaynow,itsurely57__anysenseofreality,IbelieveIstayedinastate ofpleasantdisbeliefuntilIwashalfwaythroughrehearsalsonmyfirstday.Ineveractually58 togetthejob,Afterbeingofferedtheposition,Iwag completely 59 . I remember shaking withexcitement.ThoughIwasabsolutelythrilledwiththechange,itdidnotcomewithoutitsfairshareof60.Throughthestrictrehearsalperiodofdancingsixdaysaweek;Ifounditvitalto61_upthematerialfastwitheverylastbitofconcentration.Itisthat62__todetailandonpractic ethatsetus_63_.Tothen follow thosehigh-energyrehearsalswithabusyshowscheduleofuptofiveperformancesaday,Idiscoveredanew64ofthe words "hardwork."WhatIthoughtweremyphysical _65 werepushedmuchfurtherthan I thought 66I learned to make each performancebetter than thelast,Today,whenIlookattheunbelievablecompanythatIhavethegreat 67 ofbeingapartof.notBillyamember,butdancecaptain,Iseeatraditionthathasinspirednotonly generationsoflittlegirlsbutasplendidcompanythatcontinuestodevelop andgrow-and inspires people every dayfollow their dreams.(B)Starbucksliterallychangedthedefinitionof"agoodcupofcoffee".ForStarbucks,thebra ndhadthreeelements:coffee,68_andstores.Strictcontroloverthequalityandprocessingofth ebeans69_thatthecoffeewouldbeofthehighestpossiblequality.Outstandingstorepersonnel wereemployedandtrainedincoffeeknowledge and70_ service. Store design,aroma all71 _ the"StarbucksExperience".AlmostallStarbucks storeswerecorporatelyowned andcontrolled.Starbuckspridedonthe"StarbucksExperience",72_coffeetoprovideauniqu eexperienceforits customers.73_,yougetmorethancoffeewhenyouvisitStarbucks;Yougetgreatpeople,first-ratemusic,acomfortableandupbeatmeetingplace,onbrewingexcellentcoffeeathome.Atho meyouarepartofafamily.Atworkyouarepartofacompany.Andsomewhereinbetweenisapla cewhereyoucansitbackandbeyourself.ThatiswhataStarbucksstoreistomanyofitscustome rs —akindof"thirdplace"wheretheycanescape, read,75_ or listen.ThegreenStarbuckslogoisamermaidthatlooksliketheendofthedoubleimageofthesea .ItwasdesignedbyTerryHeckler,whogotthe76_fromthewoodenstatueofthesea.Mermaidl ogoalso77_originalandmodemmeanings:herfaceisvery simple, but with modern abstract forms of packaging.StarbucksmakesthetypicalAmericanculturegraduallybrokendownintoelements of 78_:thevisualwarmth,hearingtheway,smellingthearomaofcoffeeandsoon.Justthink,thro ughthehugeglasswindows,watchingthecrowdedstreets,__79_sippingacoffeeflavor,whic hisinlinewiththe"Yapi",thefeelingofexperienceinthe_80_life.ButtheessenceofStarbucksisnotaboutthecoffee,althoughit's 81_.coffee. 53. A.connected 54. A.rarely 55. A.symbol 56. A.bouncing 57. cks 58.A. cared 59.A. motivated60.A, challenges 61.A. put 62,A. attention 63. A. apart 64. A, function 65. A. boundaries 66. A.necessary 67. A. talent B. expanded B. certainly B. memory B. dating B. adds B. expected B.relaxed B. profits B. mix B. association B. aside B.eating B. problems B. perfect B. honor C. exposed C. probably C. truth C. turning C. makesC.aske d C. convinced C. advantage C.build C. attraction C. off C. expression C. barriers C. proper C. potential D. extended D. consistently D.reality D.tracking D.brings D. decided D. astonishedD.ad ventures D. pick D. adaptation D. back D usage D. efforts D. possible D. responsibilityCoffee is only a carrier. Coffeeconsumption,_82_, is and cultural.Section BDirections:Readthefollowingfourpassages.Eachpassageisfollowedbyseveralquestionso runfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Chooset heonethatfitsbestaccordingtotheinformationgiveninthepassage youhave justread.(A)Foodandideasaboutcookingithavebeenpassingfromonepartoftheworldtoanothersin cetheStoneAgeRevolutionbeganintheMiddleEast.Theywerepartofthespreadofcivilizati on,thoughsincepeoplechangetheirtastesinpaintingandarchitecturemuchfasterthantheirta stesinfood,knowledgeofwhatwaseatenisfarlessthanknowledgeofthehousesthatwerelive dinortheclothesthatwereworn.Cookerybookswerefew before the 17th century, andhow closeare the generaleatinghabitsat anyperiodto the cookery books published?Changesowedmoretothemovementofpeople,ofanimals,ofmerchants,ofrichlandow ners,thantobooks.Beforecanals,railways,goodroads,mostpeopleatewhatcouldbeproduce dwithinathirty-milearea.Portsdidbetter,ofcourse,iftheywereonaroute.Formostpeoplefoodwasbasicallyr egionalfoodandtherewasnotalwaysenoughofiteither.Eveningoodareas,poorcountrypeop lehadlittletoeatsincemostofwhattheyproducedwentforsaleatlocalmarkets.Onlyrichmenc ouldbuy expensive seedsto grow unusual vegetables,oremploygardenerswho68. A. customers69. A. ensured70. A. employment71. A. resulted from72. A. coming across73. A.Actually74.A. dependence75.A. negotiate76.A. imagination77.A.conveys78.A.brand79.A. greedily80.A. easy81.A. great82.A. for instance B. managers B. assured B.customer B. contributedB.m aking upB.Gradually B. effect B. perform B. inspiration B. creates B. logo B. gently B. busy B. rareB. to large extentC.people C.predicted C. environment C. benefited from C. going beyond C.Luckily C. advice C. quarrel C. patent C. credits C. possession C. reluctantly C. miserable C. expensive C. in additionD. clients D. confessed D. greeting D. stuck to D. depending on D. extremelyD.remark D. chat D. illustration D. cultivates D. experience D. indifferently D. energetic D. bitter D. by contrastunderstoodhowtogrowfinefruitunfamiliartotheplacetheylivedin,oraffordcooks trainedelsewhere to providevariety at mealtimes.Theundoubtedadvantagesofpresent-daylarge-scalemanufactureandorganization—wonderfulcleanliness,quickdistribution,pricesthatallowfarmorepeoplethan.everinthepas ttosatisfytheirhunger—havenotsofarcometoustogetherwithanexcellentqualityofflavor.Moreover,inaworldwher epossibilitiesareendless,businessseemstotolimitchoicebeyondacertainlevel.Ofthe300va rietiesofpearsthatlistedbyoneFrench17th-centurygardener-eventhoughhehadtoadmitthatonly30ofthemwerereallywortheating—onlyabouthalfaarenowproduced in Europe.33.Why do we knowso littleabout the food people ate in thepast?A.Eatinghabits usedtochange very quickly.B.There were no cookery books before the 19thcentury.C.Peopledid not changetheir tastesinfoodfast,D.There arevery few paintings of food.84.Changes in eating habits were caused byA.shortagesof basic foodB.the movement ofpopulationC.developments inagricultureD. the recipes of foreign cooks85.What is the problemwith our foodtoday?A.It's too expensive for many people.B.It'smanufactured tooquickly.C.It doesn't taste as it used to.D.It's exported in verylarge quantities.86.What point isthe authormaking in the example aboutthe pear inthe lastparagraph?A.There is not as much variety now as before.B.There wasmorevariety in the past but quality was not as high.C.Most pears that wereproduced were not fit toeat.D.There is more varietyoutside Europe than inEurope.(B)Everhadatimeinyourlifewherecashhasn'tbeenasplentifulasyou'dlikeandyou've needed to tightenthe budget?We all have,AccordingtotheWorldBank,globalfoodprices,driveninpartbyhigherfuelcosts,are36 %abovetheirlevelayearago.Foodanddrinkareamongourbiggestongoing expenses, which meansit's also one of thebiggestopportunities for savings.Therearechangesofthewayyoubuyandpreparefoodthatcanmakeabigimpactonyourb ankaccount.Makingsignificantsavingsonyourgrocerybillisn'tashard as you might think, and you canstill livewell. Hereis how.COOK FROMTHE BEGINNINGIngeneral,themorepreparationorprocessingstepsafoodhagundergone,thehighertheprice.Soit'sbesttocookthingsfromtheverybeginningwherepossible.Evensmallc hangacanmakeabigcostdifference.Trybuyingunwashedwholelettuceorsaladleavesandgi vingthemacleaningyourself,Theper-ki10ÿa mprice can be as much as ten timesmore for prepackaged salad leaves.STEWNGMEATSupplyanddemandplayabigroleinfoodpricing.Foodthatisn'tfashionablecanbeexcell entvalueformoney.Unfortunately,lambchopsarenotasinexpensiveastheyoncewere—buttherearestillplentyofotheroptions.Lookforoxtail,chicken wingtip'andfeet,or•other org anssuchasliversandlungs.Aquickinternetsearchwillgiveyouahostofideasonhowtoprepar eunfamiliaringredients.Agoodplaceto start is with slow cookedcasseroles or stews, BUYIN BULKAgoodrule,basedonexperience,isthatischeaper",butlargerpacksizesaren'talwaysbet tervalue.Itdoespaytocomparethepricetomakesureyoureallyaresaving-a—ifyoucan,checkthe''unitpricing",whichcc—patespricesbyvolumeandweight.Andmakesureyou'llnotendupthrowinghalfofitoutthanu singitbytheexpiry date.TAKEALISTPlanningaheadisgreatwaytoeconomizeandreducetheriskofexpensiveimpulsepurch ases,somakealistofwhatyouneedbeforeyouheadtothesupermarket.It'salsoagoodideanott oshopwhileyouarehungrytoresisttheurgeto pick up unnecessary food items, IGNORETHE LISTGiveyourselftheflexibilitytomakethemostofthesupermarketspecialsanddiscounts,a ndtousedifferentingredientsorchangeyourweeklyrecipeplansdepending onwhat's onsale orthe best value for money on the day.87.It can be learned from the passage thatA.t here maybe less opportunityfor you to save moneywhen food pricesareincreasinggreatly.B.checking the expiry date is important when buyingfoods.C.the way we prepare our food affects our expenses.D.changing your weekly recipe planswill help you stay healthy.88."Buy in bulk"most probably means"A.Buyfoods in largequantitiesB. Buy unpackaged goodsOnlyC.Bu y what's on sale D.Buy goods in smaller pack sizes89.W hich of the following isTRUE according tothe passage?A.Prepackaged food is usually of highquality.B.Wehadbettermakeaplaninadvanceaboutwhattobuybeforegoingtothesupermarket.C.Preparingunfamiliaringredientsusually costsyour moneyand time.D.We should ignorethe supermarket specials anddiscountstoavoid beingtricked.(C)RobertF.Kennedyoncesaidthata country’s GDPmeasures"everythingexceptthatwhic hmakeslifeworthwhile."WithBritainvotingtoleavetheEuropeanUnion,andGDPalreadypr edictedtoslowasaresult,itisnowatimelymomenttoassesswhat he was referring to.The question of GDPand its usefulness has annoyedpolicymakers for over half acentury.Manyarguethatitisaflawedconcept,Itmeasuresthingsthatdonotmatterandmisses thingsthatdo.Bymostrecentmeasures,theUK'sGDPhasbeentheenvyoftheWesternworld, withrecordlowunemploymentandhighgrowthfigures.Ifeverythingwasgoingsowell,then whydidover17millionpeoplevoteforBrexit,despite thewarnings about what it could do to theircountry'seconomicprospects?Arecentannualstudyofcountriesandtheirabilitytoconvertgrowthintowell-beingshedssomelightonthatquestion.Acrossthe163countriesmeasured,theUKisoneofthe poorestperformersinensuringthateconomicgrowthistranslatedintomeaningfulimprovem entsforitscitizens.RatherthanjustfocusingonGDP,over40differentsetsofcriteriafromhealt h,educationandcivilsocietyengagementhavebeen measured to geta more rounded of how countries areperforming.Whileallofthesecountriesfacetheirownchallenges,thereareanumberofconsistenttha nes.Yes,therehasbeenabuddingeconomicrecoverysincethe2008globalcrash,butinkeyindi catorsinareassuchashealthandeducation,majoreconomieshavecontinuedtodecline.Yetthi sisn'tthecasewithallcountries.SomerelativelypoorEuropeancountrieshaveseenhugeimpr ovementsacrossmeasuresincluding civil society,income equality andthe environment Thisisalessonthatrich countriescanlearn:WhenGDPisnolongerregardedasthe solemeasure of O country's success, the world looks verydifferent,So whatKennedy wasreferring to was thatwhileGDPhasbeenthemostcommonmethodformeasuringtheeconomicactivityofnati ons,asa•measure,itisnolongerenough.Itdoesnotincludeimportantfactorssuchasenvironm entalqualityor educationoutcomes—allthingsthat contribute to a person's sense of well-being.ThesharphittogrowthpredictedaroundtheworldandintheUKcouldleadtoadeclineint heeverydayserviceswedependonforourwell-beingandforgrowth.Butpolicymakerswhorefocuseffortsonimprovingwell-beingratherthansimplyworryingaboutGDPfigurescouldavoidtheforecasteddoomandma yevenseeprogress.90.Robert F. Kennedy is cited because heA.praised the UKfor its GDP.B.identified GDPwith happiness.C.misinterpreted the role ofGDP.D.had a low opinion ofGDP.9I. It can beinferred from Paragraph 2 thatA.the UKis reluctantto remold its economic pattern.B.GDPas the measure of successisWidely disapproved of in the UK.C.theUKwill contribute less tothe worldeconomy.D.policymakers in theUKare paying less attention to GDP. 92.Whichof the following is titleabout the recent annual study?A.It is sponsored by 163 countries.B.It excludes GDPas an indicator.C.Its criteria are questionable.D.Its results are enlightening.93.I n thelast twoparagraphs, the author suggests thatA.the UK is preparing for an economicboom.B.B. high GDPforeshadows an economic decline.C.it is essential to consider factors beyondGDP.D.it requires caution tohandle economic issues.(D)Inarareunanimousruling,theUSSupremeCourthasoverturnedthecorruptionconvicti onofaformerVirginiagovernor,RobertMcDonnell.putitdidsowhileholdingitsnoseattheeth içsofhisconduct,whichincludedacceptinggiftssuchasaRolex watch and aFerrariautomobile froma companyseeking accessto government.Thehighcourt'sdecisionsaidthejudgeinMr.McDonnell'strialfailedtotellajurythatitm ustlookonlyathis''officialacts,"ortheformergovernor'gdecisionson"specific"and'unsettle d" issues related to hisduties.Merelyhelpingagift-givergainaccesstootherofficials,unlessdonewithclearintent to pressure thoseofficials, is not corruption, the justices found.Thecourtdidsuggestthatacceptingfavorsinreturnforopeningdoorsis"distasteful"and "nasty,"Butunderanti-briberylaws,proofmustbemadeofconcretebenefits,suchasapprovalofacontractorregulati on.Simplyarrangingmeeting,makingaphonecall,or hostingan event isnot an "official act".Thecourt'srulingislegallysoundindefininga.kindoffavoritismthatisnotcriminal.Elec tedleadersmustbeallowedtohelpsupportersdealwithbureaucraticproblemswithoutfearof prosecutionforbribery."Thebasiccompactunderlyingrepresentativegovernment,"wroteC hiefJusticeJohnRobertsforthecourt,"assumesthat publicofficialswill hear fromtheir constituents and act on theirconcerns."Buttherulingreinforcestheneedforcitizensandtheirelectedrepresentatives,notthecou rts,toensureequalityofaccesstogovernment.Officialsmustnotbeallowedtoplayfavoritesin providinginformationorinarrangingmeetingssimplybecauseanindividualorgroupprovide sacampaigndonationorapersonalgift.Thistypeofintegrityrequireswell-enforcedlawsingovernmenttransparency,suchasrecordsofofficialmeetings,rulesonlobby ing,andinformationabouteachelectedleader's source of wealth.Favoritisminofficialaccesscanfanpublicperceptionsofcorruption.Butitisnotalwaysc orruption.Ratherofficialsmustavoiddoublestandards,ordifferenttypesofaccessforaverag epeopleandthewealthy.Ifconnectionscanbebought,abasicpremiseofdemocraticsociety—thatallareequalintreatmentbygovernment—isundermined.Goodgovernancerestsonanunderstandingoftheinherentworthofeach individual.Thecourt'srulingisastepforwardinthestruggleagainstbothcorruptionandofficialfavoritism.94.The underlined sentence (Para.l) most probably shows thatthecourtA.avoided defining theextent of McDonnell's duties.B.made no compromisein convicting McDonnell.C.wascontemptuous of McDonnell's conduct.D.refused to comment on McDonnell'sethics.95.According to Paragraph 4, an officialactis considered corruptive only if itinvolvesA.leakingsecrets intentionally.B.B. sizable gains inthe formofgifts.C.concrete returns for gift-givers.D.breakingcontractsofficially.96.T he court's is based on the assumption that publicofficials areA.justifiedin addressing the needs oftheir constituents.B.qualifiedto dealindependently withbureaucratic issues.C.allowed to focus on the concernsof theirsupporters.D.spare from conviction on the charge offavoritism.97.W ell-enforced laws ingovernmenttransparency are needed toA.awaken the conscience of officials.B.g uaranteefair playin officialaccess.C.allow for certain kinds oflobbying.D.inspire hopes in average people.98.The author's attitudetoward the court's rulingisA.sarcasticB. tolerantC.skepticalD. supportiveSectionA(10')Directions: Fillin the sentenceswith the proper formof the given verbs.1.H owhappyweare!TheNationalDayHolidaywehavebeenlookingforwardto(come) atlast.2.N ndhasbeenmarkedwilderness,buthowitisusedand managed is far from (settle).3.T hemanagersdiscussedtheplanthattheywouldliketosee(carry)outthe next year.4.When she said some people cheated in the exam, she (not refer) toyou.5.Therewasaknockatthedoor.Itwasthesecondtimesomeone (interrupt)me that evening.6.The watch he (mend)went wrong.7.The samething, happening in war time (amount) to a greatdisaster.8.If he follow the doctor's advice, he would be quite all rightnow.9.M ark oftenattempts to escape (fine) whenever he breaks trafficregulations10.HewillhavelearnedEnglishforeightyearsbythetimehefromthe(graduate) universitynextyear.Section B (10')Directions:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentand grammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperform ofthegivenword;fortheotherblanks,useonewordthatbest fits each blankHistory of PizzaPizzaisprobablythemostgloballyrecognizablefoodtoday.Originallyafoodforthepoo rhasnowbecomeadishforeveryone.Pizzaistheresultofatransformationdeveloped over the centuries.Theancestorofpizzaisthesimplebread.Itdominateshistoryasoneofthemostusedfoods forthepoorwhowereforced11_(eat)onlycerealsand12fewproductsthatnaturewasoffering.Theyusedtheirownimagina tionandfantasytocreatesomethingtastefulfortheirmeals,Barleywas 13 (common)ingredientusedtopreparebread.Throughthepizzatookitsowncourseanddevelop edintothedishthatweknowtoday.Thisdishhasinspiredmanywritersandartistsinourhistoryandit'sfromtheirdocu mentsandnotes 14_weknowthatpizzahastrulyoldorigins.Themodernpizza_15 (develop)aftertheintroductionofthetomatotoItaly in the16thcentury.Throughoutthe17thand18thcenturiesNaplesestablisheditselfasthepizzacapital ofItaly.However,creditfortheinventionofthetrulymodernpizzagoestoaman16(name)RafaelaEsposito.Forthe1889visitofKingUmbertoIandQueenMargherita,Esposi todesignedthe"pizzaMargherita",whichlookedliketheItalianflag 17 .the queenloved it, and today, pizzaMargherita is the world standard.PizzadidnotfinditswayintotheUnitedStates_18aftertheendoftheSecondWar.Atthatt ime,U.S.soldiersreturnedhome.Alongwiththeirreturn,theyalsobroughtbackanappetitefo rthepizzathey 19 (enjoy)inItaly,Pizzaparlorstospringupinandmorepiecesashungrypeoplestartedtoeatthiso ne-dishfoodon a regular basis.Today,20 (depend)onwhereyoulive,youcanusuallyfindapizza parlornearyourhome.Manyparlorswillevendelivertheirfoodrighttoyourfrontdoor!or,ifyo uprefer,mostgrocerystoressell,frozenpizzasandpizza-makingkitaswell asthe separate ingredientsformaking your own style of pizza too!Directions: Complete thefollowing sentences with the he p of the Chinese given-21.G raduatedfromoneofthetopfiveuniversitiesintheworld,thisaggressiveyoungman(声称自己已经确立了作为一名有名的经济学家的地位）22.Smokinganddrinking arealwayslisted asthe twomajorcause;of variousdiseasesbecause （它们会妨碍身体吸收氧气）(偏袒艺术23.TheGovernmentcameunderfireyesterdayfor领域的一些精英)24.He(保持浓厚的兴趣)the progress of the work.25.Engineersnoticedthatthepipes_ (没有如预期的那样在膨胀)26.WesternEuropeancountries (见证了移民的快速增长）afterWorldWarIlandmanyEuropeansnationstodayhavesizeableimmigrantpopulations,bo th of European and non-European origin.27.Itmaybethe21stCenturybuttheissueofvirginityinArabculturecanstillbe(生死攸关的大事，especiallyfor womenlikeSonia andNada. 28,Thereisastudyprogram (大学毕业生目前可以获得)in twenty-two countries inAsia,Africa and LatinAmerica.29.E mma Kelty (充分意识到危险）in theAmazon rainforest butkeptgoingregardlessofthewarnings,onlytobekilledbythedrugthetraffickersAmazon hidden in the forest.30.To (培养一个人的品位）Englishprose, the most effective way is to read English booksextensively.Section D (12')Directions:Translate the followingsentencesinto English, usingthe wordsgivenin the brackets.31.在这些细节上争来争去浪费了他们很多宝贵的时光。
2017～2018学年第二学期高二年级6月考试
2017～2018学年第二学期高二年级6月考试说明：1、本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，第Ⅰ卷第（1）页至第（8）页，第Ⅱ卷第（9）页至第（12）页。
2、本试卷共150分，考试时间120分钟。
第Ⅰ卷（选择题，共90分）注意事项：1、答第Ⅰ卷前，考生务必将自己的准考证号、科目填涂在答题卡上。
2、每小题选出答案后，用2B铅笔把答题卡上对应的题目标号涂黑。
答在试卷上无效。
3、考试结束后，监考人员将试卷答题卡和机读卡一并收回。
第一部分：听力（共两节，满分20分）第一节（共5小题；每小题1分，满分5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应的位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What is the man wearing now?A. A jacket.B. A shirt.C. A jacket and a shirt.2. Where was the man last night?A. At home.B. In his neighbor’s house.C. In the hospital.3. When will the flight arrive?A. At 9:00.B. At 9:05.C. At 9:10.4. What do we know from the conversation?A. The man is late.B. It is 7:25 now.C. The film has been on for five minutes .5. Where are the two speakers probably speaking?A. In the police station.B. On the street.C. In a shop.第二节（共15小题；每小题1分，满分15分）听下面5段对话。
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绝密*启用前 试卷类型 A永城高中2017-2018学年度高二英才班第一次月考物理试题本试题卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
学生作答时，将答案答在答题卡上(答题注意事项见答题卡)，在本试题卷上答题无效。
考试结束后，将本试题卷和答题卡一并交回。
考试时间：90分钟 满分：110分第Ⅰ卷一、选择题：本题共10题，每小题5分，共50分。
在每个小题给出的四个选项中，第l －7题只有一项符合题目要求，第8－10题有多个选项符合题目要求。
全部选对的得5分，选对但不全的得3分，有选错的得0分。
1．为电荷如图所示，abcde 是半径为r 的圆的内接正五边形，当在顶点a 、b 、c 、d 、e 处各固定有电荷量为＋Q 的点电荷时，O 点的电场强度为零；若在e 处固定有电荷量为－3Q 的点电荷，a 、b 、c 、d 各处仍量为＋Q 的点电荷，则圆心O 处的电场强度大小为A.4kQr 2 B.3kQ r 2 C.2kQ r2 D.kQ r2 2．如下图所示，真空中A 、B 两个点电荷的电荷量分别为＋Q 和＋q ，放在光滑绝缘水平面上，A 、B 之间用绝缘的轻弹簧连接．当系统平衡时，弹簧的伸长量为x 0.若弹簧发生的均是弹性形变，则A ．保持Q 不变，将q 变为2q ，平衡时弹簧的伸长量等于2x 0B ．保持q 不变，将Q 变为2Q ，平衡时弹簧的伸长量小于2x 0C ．保持Q 不变，将q 变为－q ，平衡时弹簧的缩短量等于x 0D ．保持q 不变，将Q 变为－Q ，平衡时弹簧的缩短量小于x 03．在点电荷Q 产生的电场中有a 、b 两点，相距为d ，已知a 点的场强大小为E ，方向与ab 连线成30°角，b 点的场强方向与ab 连线成120°角，如图所示，则点电荷Q 的电性和b 点的场强大小为A ．正电、E /3B ．负电、E /3C ．正电、3ED ．负电、3E4．如右图所示的电路中，E 为电源，其内阻为r ，L 为小灯泡(其灯丝电阻可视为不变)，R 1、R 2为定值电阻，R 3为光敏电阻，其阻值大小随所受照射光强度的增大而减小，为理想电压表．若将照射R 3的光的强度减弱，则A ．电压表的示数变大B ．小灯泡消耗的功率变小C ．通过R 2的电流变小D ．电源内阻消耗的电压变大5．如图所示，电路中R 1、R 2均为可变电阻，电源内阻不能忽略，平行板电容器C 的极板水平放置．闭合电键S ，电路达到稳定时，带电油滴悬浮在两板之间静止不动．如果仅改变下列某一个条件，油滴仍能静止不动的是A ．增大R 1的阻值B ．增大R 2的阻值C ．增大两板间的距离D ．断开电键S6．如图所示，MN 为足够大的不带电薄金属板，在金属板的右侧，距离为d 的位置上放入一个电荷量为＋q 的点电荷O ，由于静电感应产生了如图所示的电场分布．P 是金属板上的一点，P 点与点电荷O 之间的距离为r ，则P 点的电场强度的A ．方向沿P 点和点电荷的连线向左，大小为2kqdr3B ．方向沿P 点和点电荷的连线向左，大小为2kq r 2－d 2r 3C ．方向垂直于金属板向左，大小为2kqdr 3D ．方向垂直于金属板向左，大小为2kq r 2－d 2r 37．如图1所示，半径为R 的均匀带电圆形平板，单位面积带电量为σ，其轴线上任意一点P (坐标为x )的电场强度可以由库仑定律和电场强度的叠加原理求出：E ＝2πkσ⎥⎦⎤⎢⎣⎡+-221x R x，方向沿x 轴．现考虑单位面积带电量为σ0的无限大均匀带电平板，从其中间挖去一半径为r 的圆板，如图2所示．则圆孔轴线上任意一点Q (坐标为x )的电场强度为( )A ．2πkσ022xR x B ．2πkσ022xR rC ．2πkσ0xrD ．2πkσ0rx8．如图所示，曲线C 1、C 2分别是纯直流电路中内、外电路消耗的电功率随电流变化的图线，由该图可知下列说法正确的是A ．电源的电动势为4 VB ．电源的内电阻为1 ΩC ．电源输出功率最大值为8 WD ．电源被短路时，电源消耗的功率为16 W9．如图所示，氕核、氘核、氚核三种粒子从同一位置无初速地飘入电场线水平向右的加速电场E 1，之后进入电场线竖直向下的匀强电场E 2发生偏转，最后打在屏上．整个装置处于真空中，不计粒子重力及其相互作用，那么A ．偏转电场E 2对三种粒子做功一样多B ．三种粒子打到屏上时的速度一样大C ．三种粒子运动到屏上所用时间相同D ．三种粒子一定打到屏上的同一位置10．右图中三实线a 、b 、c 表示三个等势面．一个带电粒子射入电场后只在静电力作用下沿虚线所示途径由M 点运动到N 点，由图可以看出，下列说法错误的是A ．三个等势面的电势差是φa >φb >φc B ．三个等势面的电势关系是φa <φb <φc C ．带电粒子在N 点的动能较小，电势能较大 D ．带电粒子在N 点的动能较大，电势能较小第Ⅱ卷二、非选择题:本题共6小题，共60分。
11．（6分）某同学利用如图所示的电路测电源电动势E 及电阻R 1和R 2的阻值．实验器材有：待测电源E (不计内阻)，待测电阻R 1，待测电阻R 2，电压表V(量程为1.5 V ，内阻很大)，电阻箱R (0～99.99 Ω)，单刀单掷开关S 1，单刀双掷开关S 2，导线若干．(1)先测电阻R 1的阻值．请将同学的操作补充完整：闭合S 1，将S 2切换到a ，调节电阻箱，读出其示数r 和对应的电压表示数U 1，保持电阻箱示数不变，将S 2切换到b ，读出电压表的示数U 2，则电阻R 1的表达式为:R 1＝________.(2)该同学已经测得电阻R 1＝4.8 Ω，继续测电源电动势E 和电阻R 2的阻值．该同学的做法是：闭合S1，将S 2切换到a ，多次调节电阻箱，读出多组电阻箱示数R 和对应的电压表示数U ，由测得的数据绘出了如图所示的1U －1R 图线， 则电源电动势E ＝________V ，电阻R 2＝________Ω.12．（9分）现有一合金制成的圆柱体，为测量该合金的电阻率，现用伏安法测圆柱体两端之间的电阻，用螺旋测微器测量该圆柱体的直径，用游标卡尺测量该圆柱体的长度．螺旋测微器和游标卡尺的示数如图a 和b 所示．(1)由上图读得圆柱体的直径为__ __cm，长度为_ ___cm.(2)若流经圆柱体的电流为I，圆柱体两端之间的电压为U，圆柱体的直径和长度分别为D、L，测得D、L、I、U表示的电阻率的关系式为ρ＝_____ ___．13. （10分）如图所示，在O点放置一个正电荷，在过O点的竖直平面内的A点，自由释放一个带正电的小球，小球的质量为m、电荷量为q.小球落下的轨迹如图中虚线所示，它与以O为圆心、R为半径的圆(图中实线表示)相交于B、C两点，O、C在同一水平线上，∠BOC＝30°，A距离OC的竖直高度为h.若小球通过B点的速度为v，试求：(1)小球通过C点的速度大小．(2)小球由A到C的过程中电势能的增加量．14. （10分）在如图所示的电路中，两平行正对金属板A、B水平放置，两板间的距离d＝4.0 cm.电源电动势E＝400 V，内阻r＝20 Ω，电阻R1＝1 980 Ω.闭合开关S，待电路稳定后，将一带正电的小球(可视为质点)从B板上的小孔以初速度v0＝1.0 m/s竖直向上射入两板间，小球恰好能到达A板．若小球所带电荷量q＝＋1.0×10－7 C，质量m＝2.0×10－4 kg，不考虑空气阻力，忽略射入小球对电路的影响，取g＝10 m/s2.求：(1)A、B两金属板间电压的大小U；(2)滑动变阻器消耗的电功率P滑；(3)电源的效率η.15. （12分）如图所示，电源内阻r ＝1 Ω，R 1＝2 Ω，R 2＝6 Ω，灯L 上标有“3 V 1.5 W ”的字样，当滑动变阻器R 3的滑片P 移动最右端时，电流表示数为1 A ，灯L 恰能正常发光．(1)求电源的电动势；(2)求当P 移到最左端时，电流表的示数；(3)当滑动变阻器的Pb 段电阻为多大时，变阻器R 3上消耗的功率最大？最大值多大？16. （13分）. 如图所示，一质量为m 、电荷量为q 的带正电小球(可看作质点)从y 轴上的A 点以初速度v 0水平抛出，两长为L 的平行金属板M 、N 倾斜放置且与水平方向间的夹角为θ＝37°。
(sin 37°＝0.6)(1)若带电小球恰好能垂直于M 板从其中心小孔B 进入两板间，试求带电小球在y 轴上的抛出点A 的坐标及小球抛出时的初速度v 0；(2)若该平行金属板M 、N 间有如图所示的匀强电场，且匀强电场的电场强度大小与小球质量之间的关系满足E ＝4mg5q ，试计算两平行金属板M 、N 之间的垂直距离d 至少为多少时才能保证小球不打在N 板上。
永城高中2016---2017学年度高二英才班第一次月考物理参考答案 第Ⅰ卷一、选择题：本题共10题，每小题5分，共50分。
在每个小题给出的四个选项中，第l －7题只有一项符合题目要求，第8－10题有多个选项符合题目要求。
全部选对的得5分，选对但不全的得3分，有选错的得0分。
第Ⅱ卷二、非选择题:本题共6小题，共60分。
11．（6分）答案：(1) U 2－U U 1r (2)1.43(或107)， 1.212．（9分）答案：(1)0.1844(0.1842～0.1846范围内的均可) 4.240 (2)πD 2U4IL13. （10分）解答： (1)因B 、C 两点电势相等，小球由B 到C 只有重力做功，由动能定理得：mgR ·sin 30°＝12mv 2C －12mv 2 得：v C ＝v 2＋gR . (2)由A 到C 应用动能定理得：W AC ＋mgh ＝12mv 2C－0得：W AC ＝12mv 2－mgh ＝12mv 2＋12mgR －mgh .由电势能变化与电场力做功的关系得：ΔE p ＝－W AC ＝mgh －12mv 2－12mgR .14．（10分）解答：(1)小球从B 板上的小孔射入恰好到达A 板的过程中，在电场力和重力的作用下做匀减速直线运动，设A 、B 两极板间电压为U ，根据动能定理有：－qU －mgd ＝0－12mv 20解得：U ＝200 V.(2)设此时滑动变阻器接入电路中的电阻值为R 滑，根据闭合电路欧姆定律可知，电路中的电流：I ＝ER 1＋R 滑＋r 根据部分电路欧姆定律可知：U ＝IR 滑 解得：R 滑＝2.0×103 Ω滑动变阻器消耗的电功率：P 滑＝U 2R 滑＝20 W.(3)电源的效率：η＝P 出P 总＝I 2R 1＋R 滑I 2R 1＋R 滑＋r×100%＝99.5%.15. （12分）解答：(1)电源的电动势：E ＝U L ＋IR 1＋Ir ＝3 V ＋1×2 V ＋1×1 V ＝6 V. (2)当P 移到最左端时，由闭合电路欧姆定律：I ＝E /(R 1＋r )＝2 A.(3)灯L 电阻R L ＝U 2/P ＝6 Ω，设滑动变阻器的Pb 段电阻为R 3 ，R 3与R L 并联等效电阻：R 3L ＝R 3·R L R 3＋R L ＝R 3·6R 3＋6，由闭合电路欧姆定律，I ＝E /(R 1＋r ＋R 3L )，将已知量代入，化简得：I ＝＋R 33R 3＋6. 又：U 3＝IR L3＝4R 3R 3＋2，所以：P 3＝U 23R 3＝16R 3R 33＝16R 3R 33＝16R 3R 3＋8，当R 3＝2 Ω时变阻器R 3上消耗的功率最大，且最大值为2 W.16．（13分）解答：(1)设小球由y 轴上的A 点运动到金属板M 的中点B 的时间为t ，由题意，在与x 轴平行的方向上，有：L 2cos θ＝v 0t tan θ＝v 0gt带电小球在竖直方向上下落的距离为：h ＝12gt 2 小球抛出点A 的纵坐标为：y ＝h ＋L2sin θ以上各式联立并代入数据可解得：v 0＝3gL 10，y ＝1730L ，t ＝22L 15g ，h ＝4L15所以小球抛出点A 的坐标为(0，1730L )，小球抛出时的初速度大小为：v 0＝3gL10(2)设小球进入电场时的速度大小为v ，则由动能定理可得：mgh ＝12mv 2－12mv 20解得：v ＝5gL6带电小球进入匀强电场后的受力情况如图所示。