广东中考练习
2023年广东省中考物理综合练习试卷B卷附解析
2023年广东省中考物理综合练习试卷B卷学校：__________ 姓名：__________ 班级：__________ 考号：__________注意事项：1．答题前填写好自己的姓名、班级、考号等信息2．请将答案正确填写在答题卡上一、单选题1．关于新材料，新技术及其应用，下列说法正确的是............................................... （）A．超导材料可用来做保险丝B．纳米技术是纳米尺度内的科学技术，纳米材料具有某些特殊性能C．收音机中没有用到半导体材料D．核能的利用一定不会造成环境污染2．水是生命之源，节约用水，从点滴做起．下列关于水的理解正确的是 ............... （）A．0℃的水内能为零B．水温升高，内能一定增大C．水变成冰后，体积变大、密度变大D．30℃的水比20℃的水所含的热量多3．下列估测值中，最接近实际的是............................................................................... （）A．正常人脉搏跳动的频率为70次/秒B．适合人们洗澡的热水温度约为70℃C．一元硬币的面积约为4.5mm2D．教室门的高度约为2m4．汶川地震后的5月14日，我空降兵15勇士不畏牺牲，勇敢地从4999m的高空跳伞执行侦查营救任务，为上级决策提供了第一手资料，为组织大规模救援赢得了宝贵时间，受到了中央军委的通令嘉奖。
跳伞勇士在空中匀速下落的过程中，他的:（）A．重力势能增大，机械能增大; B．重力势能减小，机械能增大;C．重力势能减小，机械能不变; D．重力势能减小，机械能减小.5．误差产生的原因只与：（）A．测量工具有关而与测量的人无关;B．测量的人有关而与测量工具无关;C．测量的工具有关也与测量的人有关;D．被测物体有关.6．小明利用天平和量杯测量某种液体的密度，得到的数据如下表，根据数据绘出的图象如图6所示．则量杯的质量与液体的密度是（）A．20g，1．0×103kg/m3B．60g，0．8×103kg/m3C．60g，1．0×103kg/m3D．20g，0．8×103kg/m37．用天平测出质量质量100g的水，步骤有：（）a．使天平的衡梁平衡;b．往可盘加入，100g的砝码;c．把空玻璃杯放在天平的左盘上，往右盘加砝码以及移动游码，使天平横梁平衡;d．要空玻璃杯中慢慢注入水使横梁平衡，这时玻璃杯中的水这是所需称量的100g的水在上述实验步骤中，正确的实验顺序是;A．a→ｂ→c→ｄ; B．ａ→c→ｄ→b;C．ａ→c→ｂ→ｄ;D．ａ→ｄ→ｃ→ｂ.8．小球从斜面上滚下，它受到的重力方向是.............................................（）A．沿斜面向下B．垂直于斜面向下C．竖直向下D．水平方向9．用电流表测量灯泡L1中的电流，下图中正确的是〔〕（）10．下图所示的四个情景中，属于实像的是（）11．以下是关于光现象的一些说法，其中正确的是（）A．在岸上看到水里的鱼比它的实际位置低一些B．斜插入盛水的玻璃杯的筷子，看上去好像在水面处折断了，这是光的反射现象C．看到物体成的虚像时，并没有光线射入我们的眼睛D．小孔成像说明了光沿直线传播12．下列关于光知识的说法中，正确的是（）A．在平面镜中看到的是物体的实像B．日食是因为光的反射引起的C．由于光的折射，我们看到水中的鱼变浅了D．近视镜片是凸透镜13．邮电局的长途电话亭大都是用玻璃制造的，隔音效果好，这主要是因为玻璃（）A．能较好地吸收声音B．能够发出声音C．不能传播声音D．能较好地反射声音14．“闻其声而知其人”，这句话表明不同人发出的声音具有不同的（）A 音调。
广东省中考英语单项选择练习
( ) 1. Do you mind ?A. I smokingB. my smokingC. my smokeD. me to smoke( ) 2. Don’t be ¬____ , this is not a ______ traffic.A. surprise, surprisingB. surprise, surpriseC. surprised, surprisingD. surprising, surprised( ) 3. You each _____ good sense of humour.A. withB. hasC. haveD. are( ) 4. The room is safe to ______ .A. live inB. living inC. liveD. live with( ) 5. Hobo has lots to eat and drink. “lots” is ______.A. subjectB. objectC. attributiveD. predicative( ) 6. It’s _____ for us _____ polite in class.A. interesting, to becomeB. important, toC. good, toD. necessary, to be( ) 7. When you feel _____ to watch TV by the n, you are all right.A. enough goodB. enough wellC. well enoughD. good enough( ) 8. If it isn’t yours, it must be _____ .A. somebody elseB. somebody else’sC. else somebodyD. else’s somebody( ) 9. Some people ____ that people born under the same star sign ___ share.similar characteristics.A. don’t believe; /B. believe; don’tC. don’t hope; /D. believe; doesn’t( ) 10. Thanks for _____ the new chairperson.A. recommend me asB. recommending me asC. recommend me forD. recommending me for( ) 11. “Do you mind if I sit here?” “_____ .It’s for Mr. Brown.”A. Not at allB. Never min dC. Better notD. Of course not( ) 12. “Are these enough for you all?” “_____.”A. Much moreB. Many moreC. More manyD. Too much( ) 13.It is very kind _____ you to help me with my lessons. It is hard _____ me to learn them well.A. of; forB. of; ofC. for; ofD. for; for( ) 14. Simon often _____, “I am generous. I like to _____ nice presents to my friends when I go to visit the m.”A. tells; carryB. speaks; bringC. says; talkD. says; take( ) 15. Don’t eat _____ meat. If you do so, You’ll get _____ fat.A. much too; too muchB. too much; much tooC. much too; much tooD. too much; too much( ) 16. I can’t decide _____ .A. to buy which oneB. which one to buyC. to buy whichD. which to buy one( ) 17.He is businesslike and is often _____ . I hope he will have more _____ at his business. A. success; successful B. successful; successC. successfully; successfulD. successful; successful( ) 18. ___ of them felt very tired but quite happy after ___ sports meeting.A. Everyone; a two daysB. Every one; the two daysC. Every one; the two-dayD. None; a two-day( ) 19.Don’t worry. All the children will __ arrive at school on time tomorrow.A. are able toB. canC. be able toD. can be able to( ) 20.“Simon wants to know if the Class 3 students___ hiking tomorrow.”“Yes, but if it _____ , they’ll visit the museum instead.”A. go; will rainB. go; rainsC. will go; rainsD. will go; will rain( ) 21. “Do you want an apple, a banana or a pear?”“_____. They all look bad.”A. BothB. NoneC. AllD. No one( )22. Colours can make us _____ or sad.A. to feel happilyB. feel happilyC. to feel happyD. feel happy( )23. Your son is old enough to _____ himself.A. wearB. dressC. put onD. have on( )24. Put it down, Tom. You mustn’t read_____ letter.A. else anyone’sB. anyone’s elseC. anyone else’sD. anyone else( ) 25. He told me he would tell us _____ .A. surprising somethingB. surprising anythingC. something surprisedD. something surpring( ) 26. This dish smells _____ .A. goodB. wellC. betterD. badly( ) 27. “Will you go to Lucy’s birthday party this Sunday, Li lei?”“_____ I if you _____.”A. So do; goB. So will; goC. Neither do; will goD. So shall; will go( )28. Most boys____ guns to dolls while most girls ___ have dolls than guns.A. would rather; preferB. prefer; would ratherC. would rather; would ratherD. prefer; prefer( ) 29. This pair of jeans looks nice__Sandy because she looks very nic e__ blue. A. on; in B. in; on C. for; on D. to; in( ) 30. She feels unhappy, _____?A. doesn’t sheB. does sheC. isn’t sheD. is she( ) 31. I’m very sorry to keep you _____ for a long timeA. waitB. waitsC. waitingD. to wait( ) 32. I_____ to attend a meeting yesterday.A. toldB. am toldC. was toldD. tell( ) 33. Could you tell me what _____ like?A. is itB. does itC. it doesD. it is( ) 34. A woman with her two children _____ in the shopping center now.A. shopsB. shopC. are shoppingD. is shopping( ) 35. Daniel’s bag must be in the room, _____ ?A. is itB. isn’t itC. mustn’t itD. must he( ) 36. When ____your father ____back? When he ___ back, please give me a ring.A. does; come; will comeB. will; come; comesC. will; come; will comeD. does; come; comes( ) 37. Nothing is wrong with my watch, _____?A. aren’t itB. isn’t itC. is itD. are they ( ) 38. If_____ calls, tell_____ I’ll come back soon.A. everyone; himB. someone; themC. anyone; himD. anybody, them( ) 39. _____ the sitting room looks!A. How beautifulB. How beautifullyC. What beautifullyD. What beautiful( ) 40. I prefer _____ shopping to _____ at home.A. to go; stayingB. going; stayC. going; stayingD. go; to stay ( ) 41. “This made me feel angry.”Is a kind of _____ structure.(结构) A. S + V + O B. S + V + DOC. S + V + IO + DOD. S + V + DO + OC( ) 42. The teacher asked Mr. Smith to _____ for a moment.A. hold upB. hold onC. hold offD. hand in( )43. _____ may not seem very _____.A. Watch TV; usefulB. Watch TV; usefullyC. Watching TV; usefullyD. Watching TV; useful( ) 44. Jim sat _____ to his mother with his eyes half _____ .A. closed; openedB. close; openC. closely; openingD. closely; opened( ) 45. We must be strict _____ ourselves and strict _____ our work.A. in; withB. with; inC. in; inD. with; with ( ) 46. Bob doesn’t know _____ to write about.A. howB. thatC. whatD. where( ) 47. Don’t open the window, _____ ?A. shall weB. won’t youC. do youD. will you( ) 48. Do you have any othe r _____ to make on the subject?A. advicesB. informationsC. suggestionsD. newses( ) 49. He was _____ at the _____ news.A. excited; excitingB. exciting; excitedC. excited; excitedD. exciting; exciting( ) 50. The workers were made _____ the whole day.A. workB. to workC. workedD. working ( ) 51. I can’t decide _____ .A. what to do itB. how shall I do itC. how to do itD. what shall I do it( ) 52. The students went out of the classroom _____ .A. noiseB. noisyC. noisilyD. quiet ( ) 53. He always makes his class _____ .A. lively and interestedB. lively and interestingC. alive and interestedD. alive and interesting ( ) 54. If you don’t go to the cinema tonight, _____ .A. so will IB. Neither do IC. Nor shall ID. So I will( ) 55. _____ of the twins has been there before.A. BothB. NeitherC. allD. None( ) 56. The colours of his trousers are different from _____ of yours.A. oneB. onesC. thatD. those( ) 57. “What do you think of his surfing?” “Oh, no one does _____ .”A. goodB. wellC. betterD. best( )58. You look _____ . What do you _____ ?A. worry, worry aboutB. worry; worried aboutC. worried; worry aboutD. worried; worried about( ) 59. Running and swimming _____ good for you.A. beB. isC. areD. maybe( ) 60. Can you please spend _____ explaining it _____ us?A. sometimes; toB. some time; toC. some times; forD. sometime; for( )61. showing great curiosity about everything is _____ of teenagers.A. charac teristicB. characterC. stubbornD. curious( )62. It is ______ comfortable to read in a ______ room.A. too, quietB. very, quietC. quite, quietD. so, quite( )63. Look, the lady looks _______A. eleganceB. elegantC. elegantlyD. elegent( )64. You each ______ good sense of humour.A. withB. hasC. haveD. is( )65. It’s ______ of Simon to make such a mess.A. typicalB. selfis hC. stubbornD. curious( )66. A: Which colour represents ________? B: Yellow, of course.A. powerB. joyC. growthD. intelligence( )67. I can’t get on the bus because there is ______ on it.A. not any roomsB. no roomsC. little roomD. few room( )68. Mike never listens to ______ except his uncle.A. someoneB. no oneC. everyoneD. anyone( )69. With tall buildings on ___ of the streets, the town looks more beautiful than before.A. neither sidesB. both sideC. either sideD. every sides( )70.Your mood is _______.A. the way people feelB. the way you feelC. your favourite colourD. you are feeling sad( )71. If your star is ______, it means that you are stubborn and don’t like change.A. attractive, graceful in appearanceB. friendly, loves to meet peopleC. confident, enjoys lifeD. active, has a lot energy( )72. We all find _______ dangerous to skate on the thin ice .A. thisB. itC. thatD. \( )73 He is confident and isn’t afraid of _______ a speech at assembly .A. makeB. is makingC. makingD. to make( )74.The dinner didn’t start ______ all the friends arrived.A. whenB. whileC. untilD. whether( )75. Digital cameras are becoming more and more popular, but some still __ too much.A. payB. spendC. takeD. cost( )76. Modest men are never ______ of the progress they have made.A . proud B. afraid C. certain D. thinki ng( )77. He has been ill for several weeks, so he has ______ in learning Maths.A. many difficultiesB. some difficultyC. a lot of troublesD. a trouble( )78. The pictures I took in Dalian ______ me of the time when I stayed there.A. remembersB. tellsC. saysD. reminds( )79. A: Why did you go back to the shop? B: I left my friends ______ here.A. to waitB. waitingC. waitD. waited( )80. Your homework is all right, _____, you can do it better, in my opinion.A. butB. besidesC. whileD. however( )81. A: I’m sorry I stepped out for a smoke, I was tired.B: There is no______ for this while you are on duty.A. reasonB. causeC. timeD. excuse( )82. The price of the coat is so ______that I can’t buy it.A. expensiveB. valuableC. lowD. high( )83. You’d better ______ too much time _____ football.A. not spend, onB. not spend, playC. not to spend, onD. don’t spend, for( )84. The whole street is full of rubbish and it smells _______.A. badlyB. strangeC. terribleD. wonderful( )85. Work is hard. ______ trying and you’ll be successful in the end.A. Give upB. Keep onC. Give inD. Turn on( )86. _____ what way did you work out the Maths _____?A. In, problemB. By, problemC. In, questionD. By, question( )87. No one has yet succeeded in explaining the _____ of how life began.A. puzzleB. problemC. causeD. reason( )88. What make you ______ it’s going to rain tomorrow?A. to thinkB. thoughtC. thinkingD. think( )89. He _____ to us that we go to Shanghai by plane.A. toldB. suggestedC. wishedD. wanted( )90. Mr. Wang offered _____ me some books.A. giveB. to giveC. givingD. given( )91. I shall give up ______ to go.A. offerB. offeredC. to offerD. offering( )92. Last summer, I took a course on _______.A. how to make dressesB. how dresses be madeC. how to be made dressesD. how dresses to be made( )93. I have never been to Shanghai. ________.A. So has heB. Neither is heC. So he hasD. Neither has he( )94. I don’t think you are right, ______?A. do youB. do IC. are youD. aren’t you( )95. The missing boys were last seen ______ near the river.A. playingB. to be playingC. playD. played( ) 96. My brother _____ for half a month.A. has been awayB. went awayC. has leftD. left( ) 97. Your school things should _____.A. be looked after wellB. be looked well afterC. be taken good careD. be taken care of well( ) 98. I think your bik e _____.A. needs to fixB. needs fixingC. needs to fixingD. needs fixed ( ) 99. Would you mind _____?A. me to smoke hereB. my smoking at hereC. me smoking hereD. if I will smoke here( ) 100. A _____ lazy man can’t earn _____ money.A. too much; too muchB. much too; much tooC. much too; too manyD. much too; too muchKeys01-05 BCCAB 06-10.DCBAB 11-15 CAADB 15-20 BBDCC 21-25 BDBCD 26-30 ABBAA 31-35 CCDDB 36-40 BCCAC 41-45 DBDBB 46-50 CDCAB 51-55 CCBCB 56-60 DCCCD 61-65 ACBCA 66-70 BCD CB 71-75 CBCCD 76-80 AADBD 81-85 DDACB 86-90 AADBB 91-95 DADCA 96-100 AABDD。
广东省中考生物练习试卷
广东省中考生物练习试卷一、选择题（本大题共30小题，共60分）1.同学们学习动植物细胞的结构后，设计概念图体现两者之间的关系，如图所示。
则属于甲部分的内容是（）①细胞壁②细胞膜③细胞质④细胞核⑤叶绿体⑥线粒体⑦液泡A、①⑤⑥⑦B、②③④⑤C、③④⑤⑥D、②③④⑥2.在“观察洋葱鳞片叶内表皮细胞”的实验操作考试中，小明在显微镜视野内只能看清细胞壁和细胞核，看不清液泡。
为了能让细胞质与液泡的界面更明显，此时可（）A. 改用凹面镜反光，放大光圈B. 改用平面镜反光，缩小光圈C. 改用凹面镜反光，缩小光圈D. 改用平面镜反光，放大光圈3从生物体的结构层次分析，下图中与其它三者不同的是（）A. B. C. D.4.小明同学生病发烧，到医院检查确诊为扁桃体发炎。
从人体的结构层次讲，扁桃体属于（）A. 细胞B. 组织C. 器官D. 系统5.某林区山脚是落叶阔叶林,山腰是红松林,山顶是冷杉林,影响这种分布状况形成的主要环境因素是( )A.阳光B.温度C.水分D.土壤6.我国是世界上使用农药和化肥最多的国家，作物中残留的农药最终进入人们的餐桌；大量工业废水未经处理直接排放，已造成50%以上的河流、湖泊严重污染，白鳍豚、江豚等物种濒临灭绝；人的镉中毒、癌症村屡有报导。
这些事例不能说明的是（）。
A.有毒物质会随着食物链的积累，最终将危害人类的健康B.白鳍豚、江豚濒临灭绝是它们适应环境变化的能力太差造成的C.生态系统的自动调节能力是有限的D.生物和环境能互相影响7.如图为某草原生态系统中草、鼠、蛇、鹰四种生物体内有毒物质含量的相对数量关系。
其中丙最可能代表( )A.草B.鹰C.蛇D.鼠8. 下列关于生态系统的说法中，不正确的是（）A．生态系统中的生物包括生产者、消费者和分解者B．一个生态系统必须包括生物部分和非生物部分C．生态系统具有很强的自动调节能力,遭到任何破坏都能迅速恢复D．生态系统中的能量和物质会沿着食物链和食物网流动9. 果树“花而不实”，缺乏的无机盐是( )A．氮 B．磷 C．钾 D．硼10. 如图为桃的果实结构图，关于果实和种子的形成，叙述正确的是( )A．果实由果皮和种子构成B．①表示果皮，由胚珠发育而成C．②表示种子，由受精卵发育而成D．果实由子房壁发育而成11.绿色植物通过下列哪项作用参与了生物圈的水循环？（）A. 光合作用B. 呼吸作用C. 蒸腾作用D. 吸收作用12. 下列哪种物质是人体生命活动的主要能量来源（）A.脂肪B. 水C. 维生素D. 糖类13. 医生从小刘消化道某器官中取出少量液体，经化验发现含有葡萄糖、麦芽糖、淀粉、氨基酸、脂肪、维生素等物质。
2023广东中考政治晨测练习八
九年级道德与法治晨测练习八（国情教育）一、单项选择题（本大题共20小题，每小题3分，共60分。
在各题的四个选项中，只有一项是最符合题意要求的答案。
请把答案写在对应题号的表格中。
）1.2022年12月23日至24日，习近平总书记出席中央农村工作会议并发表重要讲话，对全面推进乡村振兴、加快建设农业强国作出战略部署，向全党全社会表明党中央加强“三农”工作的鲜明态度，发出强农重农的强烈信号。
这①能够消除城乡差距，实现同步富裕②体现了贯彻协调、共享的新发展理念③体现了以人民为中心的发展思想④表明“三农“问题是我国当前的中心工作A.①②B.②③C.②④D.③④2.小艳准备以“贯彻共享的新发展理念“为题撰写演讲稿。
下列选项最适合作为论据的是A.学校组织学生开展机器人比赛B.市民有序参与人大换届选举投票C.基本医疗保障制度实现全覆盖D.单位组织职工有序开展读书活动3.2022年10月31日，长征五号B遥四运载火箭，在中国文昌航天发射场点火升空，发射任务取得圆满成功，这是空间站建造的关键之战。
这①表明我国在载人航天领域又取得新成就②得益于我国坚持科教兴国战略、人才强国战略③体现了我国科技水平遥遥领先世界④得益于我国坚持自主创新的基本国策A.①②B.②③C.②④D.③④4.2022年9月14日，我国自主研发的首套深水水下生产系统正式投入使用。
这标志着我国深水油气开发关键技术装备研制取得重大突破。
我国着力于开发关键技术装备的原因是A.“大国重器”要掌握在自己手中 B.科技创新是民族振兴的基石C.有利于在国际竞争中占据主导地位D.创新是综合国力竞争的基础5.2022年11月，国家统计局编著出版的《中国统计年鉴2022》公布了2021年31个省份的人口出生率、死亡率和自然增长率。
下表是我国与广东省的相关数据，由此可以得出的结论是Array注：《广东统计年鉴2022》显示：广东已经至少连续40年出生人口超过100万。
A.广东省不再坚持计划生育基本国策B.广东省人口大量流动，总和生育率低于更替水平C.广东省出生人口男女性别比偏高，老龄化加剧D.广东省人口基数大，自然增长率高6.下列应对酸雨问题、缓解温室效应正确的做法是①坚持绿色出行，使用公共交通工具②转变发展方式，开发清洁能源③禁止锅炉炼铁，取缔所有化工企业④搬迁污染企业，提高城镇化水平A.①②B.①③C.②④D.③④7.在浙江安吉，从“卖石头”到“卖风景”之变圆了乡亲们的生态致富梦,在山西右玉，经过不懈地植树造林、防沙治沙，不毛之地变身塞上绿洲，让农民的“钱袋子”鼓了起来…这一系列生态实践证明①我国的生态环境已经彻底改善②改善生态环境就是发展生产力③保护环境是引领发展的第一动力④经济发展与生态环境保护相辅相成A.①③B.①④C.②③D.②④8.道德与法治课堂上，刘老师带领同学们进行以下新闻播报活动：下列主题最能概括本次播报内容的是A.创新改变生活，让生活更美好B.创新是个人或团队的创造活动C.创新为社会治理提供技术支持D.制度的创新维护社会公平正义9.以下是道德与法治聂老师给学生制作的思维导图，其中①和②处依次应填的内容是A.C.中国智慧自强不息D.中国力量团结统一10.党的二十大报告中指出：坚持以经济建设为中心，坚持四项基本原则，坚持改革开放，坚持独立自主、自力更生，坚持道不变、志不改，既不走封闭僵化的老路，也不走改旗易帜的邪路，坚持把国家和民族发展放在自己力量的基点上，坚持把中国发展进步的命运牢牢掌握在自己手中。
2023年广东省佛山市南海区中考物理自编练习卷
2022-2023学年佛山市南海区九年级物理中考自编练习卷学校:___________姓名：___________班级：___________考号：___________一、单选题1．下列涉及到的物理量，你认为最接近实际的是（）A．物理课本的宽度约为18cm B．微波炉正常工作时的电功率约为5000WC．人脉搏一秒钟跳动约60次D．电冰箱正常工作时的电流约为10A 2．如图所示，在城市的繁华路段旁，常设有噪声显示装置，关于该装置下列说法正确的是（）A．安装噪声检测装置可以减弱噪声B．装置中数据的单位是HzC．此时的噪声不会影响人们的正常学习和工作D．此时的噪声是较理想的安静环境3．2022年从全球范围来看总共发生两次月食、两次日食。
如图所示的光学现象与日食月食的形成原理相同的是（）A．冬奥会大跳台在水中的倒影B．树荫下的圆形光斑C．倒入水后，杯底看上去“升高”了D．雨后天空中出现彩虹4．长春地理位置独特，是座四季分明的美丽城市。
下列四季景观与分子热运动有关的是（）A．春天柳絮飞舞B．夏天荷花飘香C．秋天红叶飘落D．冬天雪花飞舞5．在如图所示光具座上，将凸透镜放在蜡烛与光屏间某位置后，观察到光屏中央成清晰等大的像。
若将凸透镜移至“45厘米”刻度处，再移动光屏，看到的清晰像是（）A．倒立放大的实像B．倒立缩小的实像C．正立放大的虚像D．倒立等大的实像6．如图所示，电源电压保持不变，闭合开关后，将滑动变阻器的滑片向左移动过程中，下列说法正确的是（）A．电灯变暗B．电压表V1的示数不变C．电压表V2的示数变小D．电压表V1与电流表示数的比值变小7．质量为50kg的工人用如图所示的滑轮组运送货物上楼，每个滑轮重力相同，若工人在1min内将重为600N的货物匀速提升6m，作用在绳上的拉力F为400N。
不计摩擦与绳重，下列说法中正确的是（）A．拉力F的功率为40WB．动滑轮受到的重力是400NC．滑轮组对天花板的拉力大小为1200ND．该滑轮组提升货物的最大机械效率为80%二、填空题8．用天平和量筒测定矿石的密度时，把矿石放在调节好的托盘天平的左盘中，当天平平衡时，右盘中的砝码以及游码在标尺上的位置如图（甲）所示，矿石的质量是__________g；矿石放入量筒前后。
广东省中考病句专项练习40题及详细解析
举例2：广州中学（属）那（指）十个（数）优秀的（形）+学生 （中心词）获得了全国中学生作文大赛一等奖。
• 3．下面是班级倡议书的部分内容，请你找出画线部分有语病的 一处( B )
• (A)共建绿色家园的理念逐渐深入人心。我们深刻认识到，(B)环 境治理一定要避免不能陷入污染——治理——再污染的恶性循环 中。这就需要从源头治理南京的山水。为了保护南京的“绿肺”， (C)中山陵园管理局已于去年底提交了申报“世界自然与文化遗产” 的方案。作为中学生，(D)我们也要积极行动起来，为建设绿色 家园贡献自己的力量。
病 句 专 题
病因：搭配不当。 增加/扩大+倍数/分数（√） • 3．(2019佛山模拟题)下列对病句的修改不正确的一项是( C )
• A．该企业狠抓技术革新，今年比去年产量翻了一番，成本却下降 了一倍。(将“倍”改为“半”)
降低/减少/缩小 几倍（X) 降低/减少/缩小 几分之几/一半/几成（√）
• 病因：成分残缺（缺主语），应删掉“随着”或“使”。 • D．据业内专家估计，仅在我国，未来5年内大数据人才缺口就
将超过130万人以上。(删掉“超过”或“以上”) 病因：语义重复 D也不对，应只能去掉“以上”,若去掉“超过”，缺谓语
B．用手机微信付款的方式，普遍得到了广大年轻消费者的欢迎。 (把“普遍”调至“欢迎”前)
器从更人性化的视角来解决问题。(删除“通过”)
• C．广州市工信委官员称，广州建设“中国制造2025试点示范城
市”旨在主动探寻新时期中国制造业转型升级。(在“转型升级”后
面加“的新路径”)
病因：成分残缺（缺宾语）
广东中考英语单选题练习
广东中考英语单选题练习1.—Is it _________ bag? —No, it’s an old cap.A.theB. anC. aD. any2. —What does your brother look like? —He is _____________.A. fineB. Nice and friendlyC. goodD. Tall and handsome3. —You swim so well. Who taught you? —Learn by __________ .A. myselfB. herselfC. himselfD. itself4. My mother is ill in hospital. I have to ___________ my grandparents at home.A. look outB. look afterC. look upD.look at5.—Are you afraid of dogs? — ______________.A. Yes, I am.B. Yes, I do.C. No, I don’tD. Yes, I did6 .—What _______ do you choose, small, medium or large? —Large, please.A. color.B.sizeC. price.D. kind7. —Our classroom is so clean. —It ___________ every day.A. is cleanedB. was cleanedC. cleansD. cleaned8.—There’s going to _______ an English evening tonight? Would you like to go with us?—I’d love to.A. haveB.hasC. isD. be9. —What can I do for you? —_________________.A. I’m just kiddingB. I’ll take itC. I’m just lookingD. Take it easy10.—May I play computer games, Mom? —No, you ____________.A. don’tB. can’tC. wouldn’tD. won’t11. —Jane, when did you come here?—In 2021. I ___________ here for two years.A. comeB. have gone toC.have comeD. have been12 .—I really hate to go to such a noisy place.—_____________.A. So am IB. So do IC. So have ID. So can I13.—__________ go out for a picnic next Saturday. —Good idea.A. Why notB. How aboutC.Would you like toD. Let’s14. —__________ do you go to the library? —Twice a week.A .How soon B. How much C.How often D. How far15.—I wonder ____________ at 8:00 last night? —I was watching NBA.A. What were you doingB. What did you doC .what you were doing D. What are you doing1—5 CDABA6—10 BADCB11—15 DBACC感谢您的阅读，祝您生活愉快。
2022-2023学年广东省中考物理真题练习试卷A卷附解析
2022-2023学年广东省中考物理真题练习试卷A卷学校：__________ 姓名：__________ 班级：__________ 考号：__________注意事项：1．答题前填写好自己的姓名、班级、考号等信息2．请将答案正确填写在答题卡上一、单选题1．一位司机驾驶大货车在某路段行驶，由于超速被警察拦住，警察对司机说：“先生，刚才你的车速为70km/h，超速了。
”这位司机不满地说：“为什么小车的限速为80km/h，而大车的限速却为60km/h，不合理!”如果让你从物理学角度向司机解释，你会告诉他，这是由于 ............................................................................................................................................ （）A．物体的惯性跟速度和质量有关B．摩擦力的大小跟速度和质量有关C．物体的动能跟速度和质量有关D．压强的大小跟速度和质量有关2．超市的自动扶梯把小明从一楼匀速送到二楼的过程中，小明的 ........................... （）A．动能减小，势能增大，机械能不变B．动能增大，势能增大，机械能增大C．动能不变，势能增大，机械能增大D．动能不变，势能不变，机械能不变3．我们知道，惯性是造成许多交通事故的原因。
下列各项规则中，不是为了防止惯性早晨交通事故的是......................................................................................................................... （）A．转向时，机动车应减速慢行B．车辆快速行驶时前后要保持车距C．车辆要靠道路右侧行驶D．小型客车的驾驶员和前排乘客必须系上安全带4．一列队伍长50米，行进速度为2.5米/秒，经过一座全长100米的桥，从队伍的第一个人踏上桥到队伍最后一个人离开桥，总共需用......................................................................... （）A．40秒B．50秒C．60秒D．80秒5．下列说法中不正确的是:（）A．一杯水结成冰后,体积增大,质量不变;B．登月舱从地球到月球,质量变小;C．玻璃杯打碎后,形状发生了变化,质量不变;D．1kg的铁与1kg的棉花质量一样大.6．在酱油、水、食油和白酒四种液体中，密度最大的是:（）A．酱油; B．水; C．食油; D．白酒.7．如图所示为一环境温度监控电路，R1为定值电阻，R2为用半导体材料制成的热敏电阻（电阻随温度的升高而变小）。
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中考复习题一、教学目标1、以模拟题练习为主,提高做题速度,掌握主要题型考察的语法知识点。
二、上课内容1、评讲上节课课后练习2、中考模拟练习。
3、课后练习巩固。
中考模拟练习二、单项填空（本大题有20掌上小题，每小题1分，共20分）在每小题的四个选项中，选出可以填入空白处的最佳答案，并将答题卡上对应题目所选的选项涂黑。
( )26.Lucy is ________ university student.She likes playing ________ piano.A．a; / B．a; the C．an; the D．an; /( )27.There are more than fifty ________ in our school.A．woman teachers B．women teachersC．women teacher D．woman teacher28.—Who is ________ English teacher?—Well, it's Mrs.Green.She teaches ________ English very well.A．you; we B．you; ours C．your; us D．your; our( )29.I will stay at home and read some books if it ________ tomorrow. A．rain B．will rain C．rains D．is going to rain( )30.He doesn't like apples.I don't like them, ________.A．too B．also C．so D．either( )31.—________ fine weather it is today!—Let's go for a picnic.A．What B．How C．What a D．How a( )32.The accident happened ________ a cold winter morning.A．in B．at C．of D．on33.Hainan is a very good island.It's the second ________ island in China. A．largest B．large C．larger D．most large( )34.I don't know ________ the problem.A．how deal with B．how to deal with C．what to deal with D．what do with ( )35.Three fourths of the ________ in the country have run out.A．water B．book C．forests D．news( )36.We have ________ a decision.We will spend our vacation in that island. A．set B．made C．produced D．lifted( )37.—Must I return the book tomorrow?—No, you ________.You can keep it for three days.A．mustn't B．needn't C．can't D．may not( )38.Tom hardly had time for concerts at that time, ________？A．wasn't he B．was he C．did he D．didn't he( )39.The story is so ________.I like it very much.A．excite B．excites C．excited D．exciting( )40.—________ will you stay in Shenzhen for your summer vacation? —For about two weeks.A．How far B．How often C．How soon D．How long( )41.—Do you know the boy ________ is sitting next to Peter? —Yes.He is P eter's friend.A．whom B．who C．which D．/42.More trees ________ in and around our village.A．will be planted B．will plant C．is planted D．was planted( )43.—Why not have a birthday party for our mother? —________. A．Good idea B．That's all rightC．You are welcome D．Never mind44.It's getting ________.We should go now.A．dark and dark B．more and more darkC．darker and darker D．more and more darker( )45.Could you please tell me ________？A．where the restrooms are B．where the restrooms wereC．where are the restrooms D．where were the restrooms三、完形填空。
(本大题共10小题，每小题1分，共10分)通读下面短文,掌握其大意,然后在各小题所给的四个选项中,选出一个最佳答案,并将答题卡上对应题目所选的选项涂黑。
Once upon a time，some children were playing at seaside when they found a turtle（海龟）。
They began to beat the turtle. Just at that time，a young man came and said to them，“Stop！” The children ran ___46___ quickly. The turtle was very thankful and said，“Thanks for you r kindness. I really would like ___47___ you to a wonderful palace now.”The young man rode on the back of the turtle and was taken to the secretsaid to the turtle，“What a nice p alace！” To thank him，the king of the turtles gave him ___49___. He had never seen such a dinner before. He received a warm welcome there and was very ___50___ everything.After dinner，the king of the turtles said，“I am going to give you two boxes，___51___ you can open only one.” “You mustn…t open both. Don‟t forget it！” the turtle warned him. “All right. I will open only one，” the young man promised（许诺）。
At this time，a large wave sent him out of the sea.After he ___52___，he opened the bigger one of the two boxes. ___53___ the box was full of gold. “My God！” he cried. “I…m ___54___ now.” Then he thought，“Things in the other box must be expensive，too.” He could not wait any longer. He broke his promise and opened the other box. As soon as he opened it，he became an old man. His hair turned white. His face ___55___ an old man over eighty years old. It all happened in a moment. He was sorry for what he did，but it was too late.46. A. through B. away C. into D. out47. A. wanting B. asking C. to let D. to invite48. A. left for B. arrived on C. arrived at D. got away49. A. a very big dinner B. a very poor dinnerC. a very bad dinnerD. a very small dinner50. A. pleased with B. strict in C. angry with D. sorry for51. A. so B. or C. but D. as52. A. went back to home B. was back homeC. went back to the seaD. was back the sea53. A. To his surprising B. To one…s surprisingC. To one‟s surpriseD. To his surprise54. A. a poor man B. a rich manC. an old manD. a young man55. A. liked B. felt like C. looked like D. looked四.阅读理解(本大题有15小题,每小题2分,共30分)阅读A、B 两篇短文，并做每篇短文后的题目。