人教版九年级上册第三单元测试题
人教版九年级英语上册UNIT 3 综合测试卷含答案
人教版九年级英语上册UNIT 3 综合测试卷第一部分听力(四大题，20分)一、短对话理解(共5小题；每小题1分，满分5分)1. Where are the two speakers?A. B. C.2. What is Jack going to buy?A. B. C.3. Where will they probably go first?A. To the History Museum.B. To the Science Museum.C. To the Art Museum.4. What is the boy doing now?A. Writing a letter.B. Writing a report.C. Giving a speech.5. What does the woman mean?A. She is new here.B. She'll help call the police.C. She's too busy to help him.二、长对话理解(共5小题；每小题1分，满分5分)听下面一段对话，回答第6、7小题。
6. What does the woman want to buy?A. Some envelopes.B. Some stamps.C. Some magazines.7. How long will it take the woman to get to the post office?A. About 3 minutes.B. About 17 minutes.C. About 20 minutes.听下面一段对话，回答第8至10小题。
8. What can we know about Sam?A. He's lazy.B. He's impolite.C. He's careless.9. Where may Sam find his glasses?A. In the bathroom.B. In the living room.C. In the bedroom.10. What's the relationship between the speakers?A. Teacher and student.B. Mother and son.C. Husband and wife.三、短文理解(共5小题；每小题1分，满分5分)11. Where is David from?A. England.B. America.C. Australia.12. How many times has David been to Beijing so far?A. Once.B. Twice.C. Three times.13. Whom did David go to Wangfujing Street with?A. His mother.B. His father.C. His sister.14. When will David watch a football game?A. This evening.B. Tomorrow morning.C. Tomorrow evening.15. What does David think of Beijing?A. It has changed a lot.B. It's the same as before.C. It is not crowded.四、信息转换(共5小题；每小题1分，满分5分)第二部分语言知识运用(三大题，35分)五、单项填空(共10小题；每小题1分，满分10分)21. —I want to send this postcard to Tony. Do you know his ____？—Yes. He lives at No. 108, Bridge Street.A. abilityB. mistakeC. addressD. culture22. —____ will you share your summer holiday experiences with?—Of course, my classmates.A. WhatB. WhomC. WhoseD. Which23. —Have you got any ideas of what I should do to keep healthy?—Yes. I ____ light exercise like yoga. It can be good for you.A. suggestB. achieveC. provideD. develop24. —Is that the ____ spelling?—I don't know. Let me look it up in the dictionary.A. strangeB. simpleC. unusualD. correct25. Helen ____ refused the invitation to the concert because she needed to spend moretime on her homework.A. quietlyB. cheaplyC. politelyD. hardly26. This morning we saw some children dancing and singing when we ____ the park.A. passed byB. cleared outC. dressed upD. turned on27. The little girl often sits ____ her mother and listens to her mother tellinginteresting stories.A. aboveB. besideC. betweenD. below28. —Our computer is working again!—Yes. Our IT teacher ____ it. It took him about an hour.A. will fixB. is fixingC. has fixedD. was fixing29. —I wonder ____.—I'm not sure. Maybe next week.A. where they will goB. who will give us a talkC. how he will get thereD. when she will have a party30. —____，sir. Is the school library open the whole week?—I'm afraid not. Only from Monday to Friday.A. Pardon meB. Come onC. My pleasureD. No problem六、完形填空(共20小题；每小题1分，满分20分)AOnce upon a time, a young man told people that his neighbor Mr Smith often stole things. As a result, people in the neighborhood thought __31__ of Mr Smith and they stayed away from him.One day, when an old man lost a pet dog, everyone in the neighborhood thought Mr Smith had __32__ it. The old man called the police and the police __33__ Mr Smith. However, it turned out that Mr Smith had never stolen __34__.When Mr Smith came out of the police station, he felt very __35__. Days later, he sued(起诉) the young man. The young man said to the judge, “They were just __36__. ” The judge said, “Write all the things you said about Mr Smith on a piece of paper. Cut it up and throw the pieces of paper out on your way home. Tomorrow, __37__. ”The next day, as soon as the young man arrived, the judge said, “Go out and __38__ all the pieces of paper that you threw out yesterday. ”The young man cried, “That's __39__. Wind has blown them everywhere. ”The judge then said, “The same way, simple words may destroy the honor of a man to such an extent that one is not able to __40__ it. ” Hearing this, the young man finally realized his mistake.31. A. truly B. clearlyC. badlyD. directly32. A. shown B. stolenC. spokenD. shaken33. A. caught B. thoughtC. foughtD. brought34. A. everything B. somethingC. nothingD. anything35. A. angry B. lonelyC. lovelyD. hungry36. A. rules B. ideasC. wordsD. songs37. A. come back B. stay upC. hand outD. run away38. A. connect B. collectC. controlD. compare39. A. important B. amazingC. impoliteD. impossible40. A. request B. hitC. fixD. cutBHow to make a telephone call politely? __41__ you have a conversation with a friend or talk to someone for business reasons, there are some ways to be polite.Greet the other person politely.If you know the person you're calling, you can __42__ with “Hello! This is… How are you doing today？” If you don't know the person, __43__ yourself before starting a conversation.Speak in your normal voice.If you talk too __44__，the person may feel uncomfortable. If you talk too quietly, it may be __45__ to hear you. If you're worried about your __46__，you may ask “Excuse me, can you hear me？”Don't make noises while talking on the phone.One of the most __47__ things while you are speaking on the phone is eating or drinking. It's impolite to let the other person hear these sounds. You can either __48__ the telephone conversation to finish, or ask if you may call him/her back after you finish eating.Say thank you and goodbye at the end of a call.Since there are no facial(面部的)__49__，it can often be difficult to know when t he conversation will end. By saying “Thanks for calling. Goodbye！”，you make it __50__ that the phone conversation is over.41. A. Which B. WhetherC. UntilD. Why42. A. start B. helpC. agreeD. talk43. A. understand B. remindC. introduceD. discover44. A. lonely B. quietlyC. aloneD. loudly45. A. easy B. hardC. happyD. angry46. A. study B. lifeC. workD. voice47. A. impolite B. necessaryC. famousD. convenient48. A. pick up B. wait forC. put awayD. turn down49. A. attentions B. decisionsC. questionsD. expressions50. A. common B. secretC. clearD. special七、补全对话(有两项多余)(共5小题；每小题1分，满分5分)A: Excuse me, sir. 51. ________B: Certainly. Go along this street. Turn left into Xinhua Road, and the hospital is on your right.A: 52. ________B: It's about forty minutes on foot.A: 53. ________ Can I take a bus?B: Yes, you can. 54. ________A: Is there a bus stop near here?B: Yes. It's over there. Look! 55. ________A: Thank you very much.B: You're welcome.第三部分阅读(共两节，40分)八、阅读理解(共20小题；每小题2分，满分40分)第一节:AThe apartment is at 88 Renmin Road. It is only a few minutes' walk 56. The two bedrooms of the apartment face ____.A. eastB. westC. northD. south57. The apartment does NOT have ____.A. central heatingB. under-floor heatingC. Internet availableD. 24-hour hot water58. If you are interested in this apartment, you can contact Mrs Li ____.A. by websiteB. by letterC. by phoneD. by e-mailBHangzhou's West Lake is beautiful and it makes a lot of people feel excited.The city is the best place for active families, with bikeways, parks and places of interest. Visitors can live at Four Seasons Hotel. The hotel is designed in traditional Chinese style. It has old buildings with windows made of dark wood and Chinese gardens for people to relax.Outside the hotel, you can take part in many family-friendly activities. The parks around the West Lake are perfect for visiting by bicycle or on foot. You can also go fishing and boating. The hotel is a five-minute walk from these beautiful parks. Children will love visiting the meandering walkways, old buildings and bridges, while adults can watch locals practice tai chi or drink tea at a nearby teahouse.Within the area is Zhongshan Park that was once the holiday home of Emperor Qianlong. There are also some gardens on several islands. You can also rent bicycles from the hotel and go bike riding around the lake.The visit to the West Lake is not complete without walking a few kilometers each on the famous Su and Bai Causeways(堤). The two causeways were named after two famous Chinese poets, Su Dongpo and Bai Juyi. Take a walk in the early morning, ride a bike or climb into a boat for a personal ride around the lake. Look for the stone carvings(石刻) left by Emperor Qianlong and these stone carvings tell you about the ten beautiful sights of Hangzhou. To avoid(避免) a large crowd, try to time your visit on a weekday.59. What can you see at Four Seasons Hotel?A. Windows with light wood.B. Chinese gardens.C. English gardens and parks.D. Buildings in different styles.60. Which activity is not mentioned in the passage?61. What does the underlined word “meandering”mean?A. 蜿蜒的B. 陡峭的C. 可爱的D. 危险的62. Who left the stone carvings for the West Lake?A. The poet Su Dongpo.B. The poet Bai Juyi.C. Emperor Qianlong.D. The visitors.CEdinburgh is the capital of Scotland. It is in the southeast of Scotland. It is about 45 miles away from Glasgow, 15 miles from Livingston and 100 miles from Carlisle and Aberdeen.During the Middle Ages, a small fort called Dun Eiden was built by the Gododdins. In the 7th century, the Angles invaded the fort. The Angles took the name “Eiden” and joined it to “burh”，an old English word meaning “fort”，and created the name of Edinburgh. It has been the capital of Scotland since 1437.If you come to Edinburgh by train from the south, the first thing you will see is Edinburgh Castle. It stands high over the city.Edinburgh is a city full of hills but it is a good city to visit on foot. After the castle, you can visit more of the Old Town. Go down the Royal Mile to Holyroodhouse. It is hundreds of years old. You can also go to the shops on the Royal Mile or on Princess Street in the New Town. There is also the National Gallery ofScotland, with pictures from Scotland and from many other places.In August, you can come to the Edinburgh International Festival. It's the biggest art festival in the world with hundreds of different things to do and see.63. What is Paragraph 2 mainly about?A. Where Edinburgh is.B. How Edinburgh got its name.C. How the Angles invaded the fort.D. When Edinburgh became famous.64. What does the underlined word “It” in Paragraph 4 r efer to?A. Edinburgh Castle.B. Princess Street.C. Holyroodhouse.D. The Royal Mile.65. In which part of a magazine can we read the text?A. Language.B. Nature.C. Environment.D. Travel.DAsking for directions is the first thing we need to do when we get to a different country. Knowing how to ask for help can make our life much easier! Here are some tips for you.(续表)66. What is a must when you ask for directions?A. Knowing where you are.B. Asking the right person.C. Making yourself understood.D. Greeting the person politely.67. Using the word “nearest” can help you ____.A. miss wrong placesB. find the place quicklyC. find a better placeD. learn about more places68. Which of the following can be put in “__▲__”？A. Learn more about the National StadiumB. Know when to find important landmarksC. Try to know some important landmarksD. Don't be afraid of asking about landmarks69. What is the text mainly about?A. How to ask for directions abroad.B. How to give polite greetings abroad.C. Some examples of how landmarks are used.D. Some polite expressions about asking for help.EHave you ever wondered how you can politely ask a question in English? How should you ask your teacher for a day off? Using an indirect(间接的) question is one great way to do this.When to Use Indirect QuestionsWhen you ask a direct question, you ask directly, “Where is the bus stop？” Direct questions are fine when you are talking to your friends, family members or people you know well. But how should you ask if you are in a more formal(正式的)situation or if you are asking someone you're not really close to? What if you are in a party or a work convention(会议)? In these situations, it's politer to use an indirect question.How to Form(构成)Indirect QuestionsIndirect questions are questions with extra words and phrases(短语)to make your question softer:Is it possible…？Do you know…？I was wondering…Can/Could you tell me…？“Can” is a little more casual,__while “Could” is politer.When you use these extra phrases, the rest of your sentence will return to the normal word order(顺序)of a declarative sentence(陈述句).Other Ways to Ask Indirect QuestionsA good word to use in an indirect question is “if ”. You could say, “Do you know if there is a bookstore here？” People can answer these “if” questions with a simple yes or no!You can also use your polite phrase followed by a question word—who, what,where, when, why or how.70. How does the writer develop the text?A. By listing(列举) numbers.B. By giving examples.C. By answering questions.D. By explaining reasons.71. In which situation can you ask direct questions?A. When you are asking a stranger.B. When you are talking to your brother.C. When you are in a party.D. When you are at an important meeting.72. What's the purpose of the text?A. To ask for some help.B. To give teachers some advice.C. To teach students how to learn English.D. To tell us something about indirect questions.第二节:阅读下面的短文，并用英语回答问题(请注意每小题后面的词数要求)。
人教版九年级上册化学第三单元《物质构成的奥秘》测试卷(含答案)
人教版九年级上册化学第三单元《物质构成的奥秘》测试卷（含答案）一、选择题(本大题包括12小题，每小题2分，共24分)1．物质是由微观粒子构成的。
下列物质由原子直接构成的是() A．氨气B．氮气C．汞D．五氧化二磷2．为相对原子质量的测定作出卓越贡献的中国科学家是()A．张青莲B．袁隆平C．侯德榜D．道尔顿3．我们常见到“加碘食盐”“高钙牛奶”“含氟牙膏”等商品，其中的碘、钙、氟指的是()A．原子B．离子C．元素D．单质4．氢是新型清洁能源，但难储运。
研究发现，镧和镍的一种合金是储氢材料。
下列有关质子数为57，相对原子质量为139的元素镧(La)的说法不正确的是()A．该元素原子中子数为82 B．该元素原子中子数为57C．该元素原子的核外电子数为57 D．该元素原子的核电荷数为57 5．从宏观、微观的角度探究物质及其变化规律是化学特有的“科学思维”之一。
下列从微观角度对宏观事实的解释不合理的是()A．石油气压入钢瓶液化——分子间的间隔减小B．端午粽飘香——分子在不断地运动C．夏天汽车轮胎炸裂——分子种类发生改变D．氧气和液氧都能支持燃烧——同种分子，化学性质相同6．2022年诺贝尔化学奖授予对点击化学等领域作出贡献的科学家。
铜离子是点击化学常用的催化剂，铜在元素周期表中的相关信息如图所示，下列说法不正确的是()A．铜的元素符号是CuB．铜的原子序数是29C．铜属于金属元素D．铜的相对原子质量为63.55 g7．下列不属于“Fe”表示的意义的是()A．铁B．铁元素C．铁锈D．一个铁原子8．钠与氯气反应生成氯化钠的示意图如下。
下列有关说法正确的是()A．氯化钠固体由分子构成B．反应中一个钠原子失去一个电子，形成相对稳定结构C．氯原子核外有两个电子层D．反应中Cl变成Cl－，证明化学反应中元素种类发生改变9．元素周期表是学习和研究化学的重要工具。
如图是元素周期表的一部分，X、Y、Z代表前三周期三种不同的元素。
部编人教版九年级上册初中语文 第三单元测试卷
第三单元测试卷(本试卷满分100分考试时间90分钟)一、积累与运用(28分)1.下列加点字的注音，有误的一项是 ( ) (2分)A 毳．衣(cuì) 雾凇沆砀．．(hàng dàng) 觥．筹交错(gōng) 铺毡．对坐(zhān)B.宠辱偕．忘(xié) 忧谗．畏讥( chán ) 淫雨霏霏．．(fēi) 心旷神怡．(yí)C.是日更．定(gēng) 浩浩汤．汤(shāng) 林壑尤．美(yóu) 拏．一小舟(ná)D.山肴．(ráo) 薄暮冥．冥(míng) 阴翳．(yì) 伛偻．．提携(yǔ lǚ)2.下列句中不含通假字的一项是 ( ) (2分)A.玉盘珍羞直万钱B.政通人和，百废具兴C.属予作文以记之D.宴酣之乐，非丝非竹3.下列加点字与现代汉语含义相同的一项是 ( ) (2分)A.更有痴似相公．．以记之．．者 B.属予作文C.北通巫峡，南极．．．．潇湘 D.沙鸥翔集，锦鳞游泳4.下列句子的朗读节奏划分有误的一项是 ( ) (2 分)A.不以/物喜，不以/己悲B.刻/唐贤今人诗/赋于其上C.若夫/日出而林霏开D.天/与云/与山/与水，上下/一白5.下列有关文学常识的表述，不正确的一项是 ( ) (2分)A.范仲淹、欧阳修同属宋代文学家，都是著名“唐宋八大家”之一，我们在本册分别学习了他们的《岳阳楼记》和《醉翁亭记》。
B.张岱，明末清初文学家，号陶庵。
出身仕宦世家，爱繁华，好山水，晓音乐。
清兵南下灭了明朝，他入山隐居、著书。
著有《陶庵梦忆》《西湖梦寻》等。
《湖心亭看雪》选自《陶庵梦忆》。
C.杜甫，唐代著名诗人，他的诗真实反映了当时的社会现实，因此他的诗被人称为“诗史”D.韩愈，字退之，《左迁至蓝关示侄孙湘》是韩愈在贬谪湖州途中创作的一首七律。
此诗抒发了作者内心的郁愤以及前途未卜的感伤情绪。
人教版九年级语文上册第三单元测试卷及答案
人教版九年级语文上册第三单元测试卷及答案人教版九年级语文上册第三单元测试卷及答案一、基础操练营1.依照拼音写汉字，为黑体字注音。
①jūn（）裂②颓唐（）③羞sè（）④jīn( )持⑤喷嚏（）⑥哽咽（）2.找出下列词语中的错不字。
①别容置辨（）②一口同声（）③心别在奄（）④光彩奕奕（）3.文学常识填空。
①《清兵卫与葫芦》的作者是，他的国籍是。
②《差半车麦秸》的作者是现代闻名作家，他的代表作是。
③《一厘米》的作者是，当代女作家，其作品还有、、等。
④《孔乙己》的作者是，《孔乙己》选自，这是作者继之后又一篇白话小讲。
4.下列句子中没有语病的一项( )A、要保证青青年健康成长，关键是能否全面推进素养教育。
B、陈老师那循循善诱的教导、和气可亲的音容笑貌，时时出现在我眼前。
C、孔乙己是如此的使人快活，而且没有他，不人也便那么过。
D、石缝间坚韧的生命，它既是生物学的，又是哲学的，是生物学和哲学的统一。
5.幽默是一种智慧，看似意料之外却又在情理之中;幽默是一项语言能力，让人捧腹后品味到语言的独特魅力。
请在以下短文的横线处为书店老总设计一句幽默答话，让不可一世的名作家听后惭愧别已。
一具非常有名的作家要来某书店参观。
书店老总受宠若惊，赶紧把所有的书撤下，全部换上该作家的书，作家来到书店后，内心很激动，咨询道：“贵店只售本人的书吗”“固然别是。
”书店老总回答后接着讲，“。
”6.从括号中挑选恰当的词语组成与甲句相对应的句子填在乙处(组成对偶句)。
甲句：蒲叶、桃叶、葡萄叶，草本木本。
乙句：。
(桂花、兰花、梅花、牡丹花、玫瑰花、春香、夏香、秋香、冬香)二、阅读大本营(一)课文回放。
(1)走过一具冰棍摊，小也讲：“妈妈给我钞票。
”(2)小也拿了钞票，跑到冰棍摊背后：“老奶奶量量我多高。
”陶影这才看到有位老太太守着一盘身高体重磅。
(3)老太太瘪着嘴，颤巍巍扶起标尺，一寸寸拔起，又一寸寸往下按：“一米一一。
”她凑近了看。
人教版九年级上册化学第三单元检测题
第三单元检测题时间：60分钟满分：100分一、选择题(每小题3分，共45分)1.(鞍山中考)下列物质由离子构成的是(D)A.水B．汞C．氢气D．氯化钠2．(梧州中考)体积为25 m3的石油气可以装入0.024 m3的钢瓶中。
主要原因是(A)A．分子间有间隔B．分子的质量很小C．分子在不断运动D．分子由原子构成3．(潍坊中考)下列符号能表示两个氢原子的是(C)A．H2B．2H2C．2H D．2H＋4．(齐齐哈尔中考)下列关于宏观事实的微观解释，错误的是(B)A．浓氨水挥发——氨分子在不断运动B．温度计内汞柱液面上升——汞原子体积变大C．氢气燃烧生成水——分子种类改变D．干冰升华——二氧化碳分子间的间隔变大5．下列关于分子和原子的说法，正确的是(D)A．分子可以再分而原子不能再分B．原子核都是由质子、中子构成的C．空气是由空气分子构成的D．原子也是构成物质的一种微粒6．我国科学家在世界上首次合成铪元素的一种原子。
已知这种铪原子的原子核内有72个质子和113个中子，下列说法错误的是(C)A．该元素原子的核电荷数为72 B．该元素是金属元素C．该元素原子的原子核外有113个电子D．该原子的相对原子质量为1857．下列有关二氧化硫(SO2)的说法中，错误的是(B)A．二氧化硫是由硫元素和氧元素组成的B．二氧化硫分子是由硫元素和氧元素组成的C．二氧化硫是由二氧化硫分子构成的D．二氧化硫分子和氧分子中的氧原子都是氧元素的原子8．(齐齐哈尔中考)下列微观示意图中和分别表示氢原子和氧原子，下列说法正确的是(D)A．参加反应的是两种物质B．反应物和生成物中只有一种单质C．化学变化中原子可分D．化学变化前后原子种类不变9．甲、乙是两种粒子的结构示意图，下列说法正确的是(C)A．甲是阳离子B．乙是阴离子C．甲、乙属于不同种元素D．甲、乙都属于金属元素10．(岳阳中考)硒是人体必需的一种微量元素，严重缺硒可能诱发皮肤病和癌症。
人教版九年级上册英语第三单元测试题(附答案)
人教版九年级上册英语第三单元测试题(附答案)一. 选择最佳答案。
(每小题1分，共10分)1. Tom is afraid __________ in the dark.A. ofB. forC. inD. with2. Let’s wait for him here, _________?A. will youB. would youC. shall weD. do we3. Don’t worry. I’m sure you_________ the exam.A. passB. will passC. passedD. passing4. Lucy is good at Singing. She can be a famous __________.A. singerB. nurseC. driverD. waiter5. Simon speaks Chinese ________ his brother.A. well thanB. better thanC. worse thanD. the worst of6. My parents don’t allow me _________ too much time on the internet every day.A. spendB. spentC. to spendD. spending7. The little boy enjoys _________ in the swimming pool.A. swimB. to swimC. swimmingD. swam8. Liu Wei is one of the best pianists in the world. He plays the piano __________.A. badlyB. wellC. worseD. worst9. I prefer _________ Chinese food to Western food.A. eatB. ateC. eatingD. to eat10. Sometimes, we can get a lot of information _______ TV programs.A. onB. fromC. inD. at二. 完形填空。
人教版九年级上册化学第三单元检测试卷(含答案)
人教版九年级上册化学第三单元检测试卷（含答案）（第三单元物质构成的奥秘）学校姓名学号得分一、选择题。
（每小题只有一个正确答案，请将其序号填入题后的括号内，63分。
）1．关于分子基本性质的叙述错误的是（）A. 分子的体积和质量都很小B. 分子间有一定的间隔C. 分子处于不停地运动之中D. 发生化学变化时物质的分子不会改变2．将深色衣服和浅色衣服浸泡在一起，会使浅色衣服染上深颜色，其中主要原因是深色染料中的（）A．分子在不断地运动B．原子本身发生了改变C．分子间的间隔增大D．原子在化学变化中可分3．下列说法错误的是（）A. 在物理变化中，分子不会变成其他分子B. 在化学变化中，分子可以分解为原子，原子又可以结合成新的分子C. 同种物质的分子性质相同，不同种物质的分子性质也可能相同D. 在化学变化中，原子不能再分，它是化学变化的最小粒子4．下列物质中，含有氧分子的是（）A. 水B．氧气C. 二氧化碳D．过氧化氢（H2O2）5．元素的化学性质主要决定于原子的（）A．核外电子数B．核电荷数C．最外层电子数D．中子数6．下列符号既表示一种元素又表示一个原子的是（）A．CO2B．Fe C．H2D．NaCl7．根据原子结构示意图，不能确定的是（）A．原子种类B．中子数C．原子序数D．物质的化学性质8. 下列说法错误的是（）A．原子不带电，电子是带负电的粒子B．水分子是由氢分子和氧原子构成的C．原子可构成分子，也可构成物质D．墙内开花墙外香，说明分子在运动9．在化学反应里，元素的原子结构可能发生变化的是（）A. 质子数B. 最外层电子数C. 中子数D. 核电荷数10．下列关于NaNO2、Na2O2、SO2、O2四种物质的组成，叙述正确的是（）A．都含有氧气 B．都含有氧元素C．都含有氧分子 D．都含有2个氧原子11. 某物质加热分解后有氧气生成，说明该物质中含有（）A．氧离子B．氧分子 C. 氧原子D．氧元素12. 下图是钠与氯气（Cl2）反应生成氯化钠的模拟图。
人教版九年级上册化学第三单元测试卷含答案
人教版九年级上册化学第三单元测试题一、单选题1．氯化钠由什么粒子构成？四位同学分别给出以下答案，你认为正确的是( )A．离子B．分子C．原子D．中子2．下列关于干冰升华过程的说法正确的是( )A．二氧化碳分子的体积变大B．二氧化碳分子的质量变小C．二氧化碳分子的种类改变D．二氧化碳分子间的间隔变大3．下列符号表示两个氢原子的是( )A．H＋B．2H C．H2D．2H24．下列各组元素中，元素符号的第一字母相同的一组是A．氯、碳、钙、铜B．氢、汞、铁、银C．钠、镁、氧、氮D．锰、硫、锌、钡5．铈(Ce)是一种常见的稀土元素，已知一种铈原子的原子核内有58个质子和82个中子，该原子的核外电子数为A．24 B．58 C．82 D．1406．下列关于原子、分子的说法错误的是( )A．分子可以构成物质，而原子只能构成分子B．在化学变化中，分子可以分成原子，而原子不能再分C．在原子中，质子数等于核外电子数D．分子是保持物质化学性质的最小粒子7．下列原子结构示意图：按金属原子、非金属原子、稀有气体原子的顺序排列的是( )A．③②①B．②①③C．①②③D．③①②8．2017年5月，中科院、国家语委和全国科技名词委正式定名118号元素为“”，其部分信息如图所示。
则下列关于的说法正确的是( )A．元素符号为OgB．相对原子质量为118C．原子的核电荷数为179D．原子的核外电子数为2979．下列关于二氧化碳组成的说法中，正确的是( )A．二氧化碳是由碳原子和氧原子组成的B．二氧化碳是由碳原子和氧分子组成的C．二氧化碳是由碳元素和氧元素组成的D．二氧化碳是由碳和氧气组成的10．对Fe3＋、Fe2＋、Fe三种粒子的判断中，正确的是( )①核电荷数相同②核外电子数相等③电子层结构完全相同④质量几乎相等⑤等质量的三种微粒含有的质子数相等A．①④⑤B．①③⑤C．①②③④⑤D．②③④11．下列关于四种粒子的结构示意图说法正确的是( )A．①、②的化学性质相似B．②的粒子符号为NaC．③在化学反应中易失去电子D．④中x可能为812．下列一定属于纯净物的是（）A．由同种分子构成的物质B．由不同种分子构成的物质C．由同种元素组成的物质D．由不同种元素组成的物质13．近年，我国科学家首次拍摄到水分子团簇图像，模型如下图。
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九年级化学第三单元测试题
一、选择题
1、关于钠离子（Na +）和钠原子的认识不正确的（）
A、它们质子数相同
B、Na+ 的最外层是稳定结构
C、Na比Na+少一个电子
D、它们属于同种微粒
2、分子的观点解释下列事实，其中不正确的是（）
A．水沸腾后壶盖被顶起——温度升高，分子体积变大
B．春天百花盛开，花香四溢——分子在不断的运动
C．50ml水和50ml酒精混合，液体总体积小于100ml——分子之间有间隔
D．水和过氧化氢化学性质不同——分子构成不同
3、今年１月，广西柳州龙江河发生镉污染。
但镉是人类的朋友，如制造“镍－镉”充电电池。
镉（Cd）的原子的核电荷数为48，相对原子质量是112。
下列有关说法正确的是（）A．镉原子的质子数为64B．镉原子的质量为112g
C．镉原子核外电子数为48 D．镉原子的中子数为48
4、下列各粒子的结构示意图中，表示同种元素的粒子的是（）
28+92828282
①②③④
A ①②③
B ③④
C ①②
D ①④
5、20l0年4月5日，科学家成功合成了第117号新元素，填补了第116号和118号元素之间的空缺。
推测该元素为117号元素的依据是（）
A．中子数B．质子数C．电子数D中子数和质子数
6、地壳中含量最多的金属元素是（）
A．硅B．铝C．氧D．铁
7、日常生活中见到的"加碘食盐"、"高钙牛奶"中的"碘、钙"应理解为（）
A．分子B．原子C．离子D．元素
8、保持二氧化硫化学性质的最小粒子是（）
A、硫原子
B、氧原子
C、氧分子
D、二氧化硫分子
9、分子、原子、离子等都是构成物质的微粒。
下列物质由离子构成的是（）
A．氯化钠B．黄金C．氦气D．冰
10、右图为元素周期表中钠元素的相关信息，下列说法正确的是（）
A．钠原子核内质子数为11
B．钠为非金属元素
C．钠原子的实际质量为g
D．钠元素的原子结构示意图为
11、为了探究水电解的微观过程，玉玲同学做了一些分子、原子的模型，其中能保持水化学性质的粒子模型是（ ）
12、根据图的信息判断，下列说法正确的是（ ）
A ．硫属于金属元素
B ．硫原子的核电荷数为16
C ．硫原子的相对原子质量为32．07 g
D ．在化学反应中，硫原子容易失去电子
二、填空题
13、用相应的数字和化学符号填空。
⑴4个硫原子 ； ⑵5个氧离子 ； ⑶3个钠离子 ； ⑷氧气 ； ⑸氦原子_______； ⑹二氧化碳分子 ；。
14、有S 2--和S 两种粒子，回答：S 2--中的“2”表示__________ _______；S 2--和S 的质子数_________(填相同或不同）；已知S 2--有16个质子，则其核外共有______个电子。
15、钚(Pu)是一种核电荷数为92的核原料，该元素一种原子的质子数和中子数之和为239，该原子的质子数为_____________ 核外电子数为____________ 中子数为____________
16、右图是某粒子的结构示意图，回答下列问题： （1）X 表示 ，Y 表示
（2）当X=12时，Y = ；
（3）当X=17时，该粒子带1个单位负电荷，则Y = 。
（4）当Y=1时，该粒子易________电子，变成带 ________电荷的__________。
17、微粒观是化学基本观念的重要组成部分，也是化学基本观念中最基础的部分，从微观视角认识和考察物质世界是学习化学应掌握的重要思维方法。
请从“构成物质微粒”的角度对下列物质进行分类：氢气、氩气、木炭、水、铝、氯化钠、铁、二氧化碳
①由原子构成的物质： ； ②由分子构成的物质： ； ③由离子构成的物质： 。
H
H
H
O
O
O H
H
O
H A B C D
+X
7
2 8 Y
图3
三、探究题
请回答下列问题：
（1）1——18号元素中属于稀有气体元素的有He 、Ne 、 （填元素符号）。
（2）1——18号元素中最外层有2个电子的原子有 、Be 、Mg （填元素符号）。
（3）某元素的原子结构示意图为，它在化学反应中一般
易
电子（填“得到”或“失去”）。
（4，当x-y=8时，该粒子为 。
19、探究家用液化石油气的主要组成元素：
（1）点燃厨房灶具的火焰，取一小块白碎瓷片置于火焰上方紧贴火焰处片刻，可观察到白瓷片上有黑色物质——炭黑（由碳元素组成）生成，证明液化石油气组成中有 元素。
（2）在火焰上方罩一冷而干燥的烧杯，片刻后，可以观察到杯内壁有水珠出现，即燃烧产物中有水，证明液化石油气组成中含有 元素。
20、己知电子的质量约为质子（或中子）质量的1/1840，下表是几种原子的组成和它们的。