九年级第九单元测试卷
最新版2019-2020年人教版九年级英语全册Unit9单元测试卷及答案点拨-精编试题
九年级英语第九单元全程衔接测试卷第Ⅰ卷Ⅰ.单项选择（每小题1.5分，共30分）( )1.I hate those people ________ don’t help others when they are in trouble.A who B.which C.what D.where( )2 .He has a friend who ________ the piano very well.A.playB.playingC. played D .plays( )3.I like the cake. I think it ________ good.A.sounds B .tastes C .gets D.feels( )4 .Doing eye exercises is ________ your eyes.A.good atB.good forC.bad atD.bad for( )5.The fast food ________ isn’t bad for you, but too much of ________ is not good.A.it; it B .itself; itself C .it; itself D .itself; it( )6.I ________ that he’ll pass the examination.A.wantB.expectC.suggestD.miss( )7. My friend Tom is a(n) ________ man, because he never tells lies.A.honest B .outing C.generous D.kind( )8.Some of the students are afraid of the teachers ________ strict with students.A.which are B .that is C .who are D .who is()9.Are you ________ agreement that exercise is good for our health?A.withB.inC.atD.for( )10.Never eat food that stays overnight，________ it tastes ________.A.if; goodB.but; wellC.even though; goodD.even if; well ( )11.Joe prefers watching TV to ________ music.A.listen to BlistenC.listening toD.listening( )12.I like music that I can sing ________.A.along onB.along withC.withD.along( )13.The story reminded me ________ an experience I once had. A.of B.to C.at D.on( 14.—What do you ________ your new school?—I love it very much.A.look atB.talk aboutC.think ofD.think over( )15.My sister listened to a CD ________ Heart Strings recently.A.calledB.calls C .call D.to call( )16.________, I don’t like the way he talks with others.A.To my honestB.Speaking honestC.In honest wayD.To be honest( )17.If I were you, I would ________ electricity. It is dangerous.A.stay away fromB.keep far fromC.stay awayD.keep from( )18.________ we do, we must be careful.A .WhateverB .WhenC .WhatD .How( )19.—Have you read the ________ newspaper?—No, I haven’t. What is in it?A .latelyB .laterC .latestD .late( )20.Some women love movies ________ have family stories.A.thatB.whoC.whoseD.whatⅡ.完形填空(每小题2分，共20分)Ah Niu’s (阿牛) original name was Chen Qingxiang. Before 1997, he was just a __1__ person in Malaysia. After his song was __2__ by Taiwan pop singer and actor Richie Ren (任贤齐), Ah Niu became popular. His most unforgettable songs include Girl Across the Way Looks Over Here, Love Me Forever, Peach Blossom One by One (《桃花朵朵开》) and Hug the Little Koala. He also wrote a few hits for several __3__ Taiwan pop singers like Rene Liu (刘若英).Peach Blossom One by One was a great __4__. The idea for the song came from one of Ah Niu’s __5__ to the Chinese Ma inland. Ah Niu saw a large area full of blossoming peach trees. Then he __6__many people working in other cities, away from their homes. Many of them __7__ to their hometowns during the Spring Festival, so Ah Niu wrote this song to describe how all of the family members __8__ for their return under the peach trees. This made it a perfect song for the Spring Festival __9__.One song from Ah Niu’s new album is I Want to Sing a Song for You, which was written for Ah Niu’s little daughter, but he says that his daughter __10__ understand what he’s singing about until she grows up.( )1.A.normal monC.specialual( )2.A.remembered B.dancedC.writtenD.sung( )3.A.famous B.honestC.maintest( )4.A.entertainment B.featureC.successD.risk( )5.A.courses B.visitsC.showsD.meetings( )plained about B.heard ofC.believed inD.thought about( )7.A.came B.returnedC.sentD.took( )8.A.keep B.expectC.waitD.sit( )9.A.lyrics B.celebrationsC.researchesD.appointments( )10.A.needn’t B.shouldn’tC.must notD.may notⅢ. 阅读理解(每小题2分，共10分)Music is different from songs. Songs express feelings with lyrics, but music with tones (音调).Unlike songs, music tones in themselves have no specific meanings. Different people may get different things from the same musical performance. Though some music works are difficult to understand, people need music in their daily life because it brings fun to them. Different people like different music: some love classical music, and others take an interest in pop music. Most young people like pop music.Pop music began in the USA and became popular around the world during the 1950s and 1960s.The best-known early kind of pop music was “rock and roll”. Pop music has taken the place of native music in many parts of the world. It has caused the number of people for “jazz” music to become much smaller than in the 1950s and earlier and it has now begun to become the most popular. Much pop music iswithout artistic value (价值), but the works of some pop singers such as the Beatles, Bob Dylan, the groups like Pink Floyd and Crosby are excellent. And there is still great interest in it today. Pop music concerts and festivals are held all over the world.( )1.The biggest difference between music and songs is ________.A.feelingsB.lyrics and tonesnguages and countriesD.meanings( )2.According to the passage, the number of people for jazz in the 1950s and earlier was ________ it is today.A.much greater thanB.much smaller thanC.as great asD.as small as( )3.What does the underlined word “kind” mean?A.Type.B.Class.C.Feature.D.Entertainment.( )4.Which of the following has now become the most popular according to the passage?A.Native music.B.Jazz.C.Pop music.D.Classical music.( )5.Which of the following is NOT true according to this passage?A.People can get different things from the same piece of music.B.Pop music began to be popular in the midtwentieth century.C.The best-known early form of pop music was “rock and roll”.D.Much pop music is of great artistic value, so it interests young people greatly.。
人教版九年级英语Unit 9单元测试卷及答案
人教版九年级英语Unit 9单元测试卷第一部分(听力共30分)I.听对话，选答案(共15小题,计20分)第一节:听下面10段对话，每段对话后有一个问题，读两遍。
请根据每段对话的内容和后面的问题，从所给的三个选项中选出最恰当的一项。
(共10小题,计10分)( ) 1.A. Soft music. B. Loud music. C. Energetic music.( ) 2. A. America. B. Canada. C. Australia.( ) 3. A. Movies that are funny. B. Movies that give him something to think about.C. Movies that have great stories.( ) 4. A. A doctor. B. A driver. C. A teacher.( ) 5. A. Movies. B. Books. C. Music.( ) 6. A. On April 30th. B. On May 13th. C. On May 30th.( ) 7. A. Jazz music. B. Country music. C. Dance music.( ) 8.A. The bus station. B. The supermarket. C. The post office.( ) 9.A. The girl’s photos. B. The girl’s clothes. C. The girl’s collection.( ) 10. A. She ate a hamburger. B. She went swimming. C. She skated.第二节:听下面两段对话，每段对话后有几道小题，请根据每段对话的内容和后面的问题，从所给的三个选项中选出最恰当的一项。
每段对话读两遍。
(共5小题,计10分)听第11段对话，回答第11、12小题。
(压轴题)初中化学九年级上册第九单元《溶液》测试卷(答案解析)(1)
一、选择题1．(0分)[ID ：133623]按如图所示装置，将液体X 注入装有固体y 的试管中，会导致U 形管中右端液面升高。
若液体X 是水，则固体y 可能是A ．氢氧化钠B ．氯化钠C ．硝酸铵D ．二氧化锰2．(0分)[ID ：133618]某同学在帮助实验员整理化学试剂时发现了一瓶标签残缺的无色溶液（如图所示），经实验员分析可知原瓶溶液中的溶质可能是233NaCl NaOH Na CO NaHCO 、、、中的一种｡上述四种物质的溶解度如下，据此可知该溶液中的溶质一定不是（ ）物质NaCl NaOH Na 2CO 3 NaHCO 3 常温下的溶解度/g3610921.59.6A ．NaClB ．NaOHC ．Na 2CO 3D ．NaHCO 33．(0分)[ID ：133614]常温下，对100mL 氯化钠饱和溶液进图示实验。
下列分析错误的是A ．实验1后，甲、乙中溶液的溶质质量分数相等B ．实验2后，甲中溶液为氯化钠的不饱和溶液C．实验2后，甲、乙中溶液的溶质量分数相等D．实验2后，甲、乙中溶液所含溶质质量相等4．(0分)[ID：133605]如图表示X、Y两种不含结晶水的固体物质的溶解度曲线。
根据图示判断下列说法中错误．．的是A．t1℃时X的溶解度大于Y的溶解度B．X、Y都属于易溶性物质C．将t1℃时X、Y的饱和溶液均分别降温至t℃，析出的X比Y的多D．当X中含有少量Y时，能通过降温结晶的方法提纯X5．(0分)[ID：133599]与“饱和溶液”互推，下列有关叙述一定正确的是A．有晶体析出的溶液B．是浓溶液C．不能再溶解该物质的溶液D．混合物6．(0分)[ID：133590]下列与水有关的说法中，错误的是A．硬水易产生水垢B．自来水厂用活性炭在“活性炭吸附池”中除去水里的色素和异味C．沉淀、过滤、蒸馏等净水操作中，蒸馏是净水程度较高的操作D．乳化是使植物油溶解在水中7．(0分)[ID：133587]如图是a、b、c三种固体物质的溶解度曲线图，请判断下列说法，其中正确的是（）A．使a、c的饱和溶液析出晶体的方法都可以是降温结晶B．t1℃时，a、c两种物质的溶液的溶质质量分数一定相等C．在t2℃时，将a物质30g加入50g水中,充分溶解，所得溶液质量为80gD．t2℃时，a、b、c三种物质的饱和溶液的溶质质量分数由大到小的关系是：a>b>c 8．(0分)[ID：133578]下图是a、b、c三种固体物质的溶解度曲线。
人教版九年级英语全册Unit 9单元测试卷(含答案)
精品基础教育教学资料，仅供参考，需要可下载使用！Unit 9一、听力(20分)（略）二、单项选择(15分)( )21.Jack likes being with the classmates are outgoing and kind.(2018 长春) A.where B.whichC.whenD.who( )22.The company can lunch for you if you work there.A.feedB.provideC.haveD.eat( )23.Having exercise every day will be good for your health.A.manyB.plenty ofC.a lots ofD.a number o f( )24.My best friend was hurt in a traffic accident.I’d like to.A.dress him upB.pick him upC.cheer him upD.give him up( )25.Dr.Bethune to work in spite of cutting his hand during an operation. A.stopped B.continuedC.forgotD.enjoyed( )26.When it rains, I stay at home rather than go out.A.like toB.would ratherC.prefer to( )27.—A storm is coming.Make sure the electricity .—Thanks for reminding me of it.A.shut offB.put offC.is put offD.is shut off( )28. a book in the library,enter a key word into the computer.A.To findB.FindC.To writeD.Write( )29.—Have you seen the movie Baby Plan?—Of course.I think it’s movie I have ever seen.A.funnyB.funnierC.the most funnyD.the funniest( )30. —Shall we go for a picnic this weekend?—.A.Sounds greatB.You’re welcomeC.You are rightD.It’s a pity( )31.—Would you like something to eat?—,thanks.I’m feeling sick now.I feel like .(2018 涡阳县期末)A.Yes;eating somethingB.No;to eat nothingC.Yes;to eat nothingD.No;eating nothing( )32.—The new T-shirt and the trousers look beautiful on you.How much did they cost? —50 dollars .A.in factB.in totalC.at firstD.at least( )33.—How long have Linda and Alan ?—For two months.(2018 济南历城区期末)A.joined the clubB.got to JinanC.been marriedD.bought the new house( )34.The lady in the kitchen is doing the dishes is my aunt.A.whereB.whoC.whichD.whom( )35.—I’m afraid I can’t come to your wedding,Julia.—! But why?A.How happyB.How luckyC.What a pityD.What nice news三、完形填空(10分)Why is music an important subject that every child should study?First of all,music helps us when we are unhappy,and gives us 36 when we are happy.There are many different types of music:slow and fast, 37 and relaxing.We can choose the music to 38 our moods (情绪).And 39 ,music is fun.Scientists say that music helps children with language learning.Music 40 the ear—and we know that children who have studied music can learn 41 more easily and pronounce much better.Students 42 have learnt to play music are also better at math.This is not 43 ,as music is mathematical(数学的),with notes in order. Playing music with other people also helps children to 44 .People who can play musical instruments always have something they can do at a 45 .( )36.A.sadness B.troubleC.pleasureD.noise( )37.A.happy B.interestingC.boringD.serious( )38.A.know B.talk C.find D.fit( )39.A.second B.twoC.thirdD.three( )40.A.closes B.improves C.has D.breaks( )nguages B.mathC.historyD.physics( )42.A.why B.when C.who D.whose( )43.A.difficult B.surprisingualD.necessary( )44.A.think more B.study harderC.work togetherD.read more( )45.A.party B.dinnerC.classD.school四、阅读理解(40分)ASome people think music isn’t funny at all.About 4% of the population is what scientists call “amusic”.People who are amusics are born without the ability to enjoy musical notes.Amusic people often cannot tell the differences between two songs.As a result, songs sound like noise to an amusic.Many amusics compare the sound of music to pieces of metal hitting each other.Life can be hard for amusics.In fact, most people cannot understand what it feels like to be an amusic.Just going to a restaurant or a shopping center can be uncomfortable or even painful.That is why many amusics have to stay away from places where there is music.However, this can result in social loneliness.“I used to hate parties,”says Margaret, a seventy-year-old woman who only recently discovered that she was an amusic.By studying people like Margaret, scientists are finally learning how to identify(辨别)this unusual condition.Scientists say that the brains of amusics are different from those who can enjoy music.The difference is complex(复杂的), and it is not connected with poor hearing.Amusics can understand other non-musical sounds well.They also have no problems understanding common speech.Scientists compare amusics to people who just can’t see certain colors.Many amusics are happy when their condition is finally diagnosed(诊断).For years, Margaret felt embarrassed about her problem.Now she knows that she is not alone.That makes it easier for her to explain.“When people invite me to a concert, I just say ‘No, thanks.I’m an amusic.’”says Margaret. ( )46.Amusics are the people who .A.like musicB.have poor listeningC.don’t like musicD.are born unable to enjoy music( )47.Life is hard for amusics mainly because .A.music seems noise for themB.people don’t understand amusicsC.amusics try to stay at places full of musicD.amusics hate parties, restaurants or shopping centers( )48.Scientists identify amusics by .A.studying different kinds of musicB.going to parties regularlyC.studying amusic peopleparing music to colors( )49.What causes amusics different from most people according to scientists?A.Their brains.B.Their poor hearing.C.Their lack of colors.D.Their problems with speech.( )50.What is the main idea of the passage?A.Amusics’strange behaviors.B.Musical ability.C.Some people’s inability to enjoy music.D.Identification and treatment of amusic.BWe know music is very important in our daily life.Do you notice music p laying at any of those places when you go somewhere? Today most stores, stations, restaurants and other places play music.You might even hear music in an office or on a farm.Scientists believe that music influences the way people behave.They think that the sound of western classical (古典的)music makes people feel richer.When a restaurant plays classical music, people spend more money on food and drinks.When the restaurant plays modern music, people spend less money.Without music, people spend even less.Scientists also believe that loud, fast music makes people eat faster.Some restaurants play fast music during their hours.This makes people eat faster and leave quickly.Restaurants can make more money in this way.Some scientists think that music makes you think and learn better.They say that music helps students to be more active.It is true that people learn better when they are relaxed.And listening to music can help you relax.The next time you hear music somewhere, be careful.It might influence the way you do things.( )51.According to the text, scientists believe that music can .A.create different feelings for usB.help us to develop good habitsC.develop our interest in moneyD.influence natural environments( )52.Western c lassical music is often considered to be .A.a sign of being slowerB.something about mannersC.a sign of being richerD.something with new styles( )53.Which type of music below can make people work faster?A.Light music. B .Rock music.C.Sweet music.D.Soft music.( )54.The habit of listening to music can make a student .A.slow in actionB.care about mannersC.fresh in mindD.worry about studies( )55.Which of the following can be the best title of the passage?A.Music in RestaurantsB.Good and Bad MusicC.Types of MusicD.Music and BehaviorC(2018枣庄)EXCITING stories are everywhere in animation movies.Little villages,wild jungles and a faraway island...Get ready for trips to these places in some new films.Name ReleasedateIntroductionKung Fu Panda 3 Jan 292018In ChinaThe chubby Panda Po is back!In the new movie Kung Fu Panda 3,Po finds the SecretPanda Village,and meets many other pandas.But not all is well.A new enemy Kaicomes.He wants to beat all the kung fu masters around China and take away theirpower.Po has to stop him.He tries to teach kung fu to other pandas,and they try tosave China.The Jungle Book April 152018In theUSThis is a story about finding one’s human nature while living in the wild.The boyMowgli grows up with a family of wolves in the jungle.A tiger thinks hu mans are badbecause they hurt him once.As a human,Mowgli finds he is no longer welcome thereand decides to leave.The boy starts his trip of self-discovery in the jungle.The Angry Birds Movie May 202018In theUSIf you played the mobile phone game Angry Birds,you must remember those colorfullittle birds with angry faces.But why on earth are they so angry?That’s the story TheAngry Birds Movie wants to tell.The birds live on an island far away from the rest of the world and they know nothingof the outside world.One day,the island meets its first visitors—the green pigs.Theyare up to something.See how the conflict between the birds and the green pigsbegan in the 3-D animated movie..A.playB.cartoonC.warD.opera( )57.In order to destroy Kai’s plan,Po tries to .A.find his father Li Shan for helpe to China to learn Kung FuC.go to his birth place to find villagers for helpD.teach villagers Kung Fu to fight against him( )58.Why does Mowgli decide to leave in The Jungle Book at last?Because .A.he doesn’t find humans’natureB.he wants to start his trip of self-discoveryC.animals don’t want to accept him any moreD.he likes living with wolves to find human’s nature( )59.From The Angry Birds Movie we can guess that .A.living on an island far away from the rest of the world may be very boringB.people who play the mobile phone game will remember the birds’angry facesC.the first visitors and the birds are up to somethingD.the birds might not get along well with the pigs in the following story.( )60.The information most probably comes from .A.a fictionB.a newspaperC.a noteD.a bookD根据短文内容,从下列七个选项中选出能填入空白处的最佳选项Giving children music lessons won’t just introduce them to a world of rhythm and melody—it could also significantly improve their language skills.61. 74 Chinese children before primary school was led by scientist Robert Desimone from MIT.In the study, the 4-to-5-year-old children were divided into three groups.One group received a 45-minutepiano lesson three times a week.While another group received extra reading instructionlessons.62.63. Then the children were tested on their ability to discriminate(辨别)words based on differences in tone(声调)and so on.The test results showed that the children who had taken piano lessons performed better at discriminating words, when compared against the children who took extra reading lessons.64.The researchers think that the musical education helped these children perform better in language tests, even better than the kids who took extra reading lessons.65. “That means schools could spend more time and energy on music and there will be improvement in children’s studies,”Desimone says.A.The research showed a result.B.The classes lasted for six months.C.The third group took no extra lessons.D.This should make educators pay close attention.E.But the two groups both did better than the third oneF.Most people think it useless to make students have music classes.G.I think that some school should give students as many activities as they can.五、词汇运用(5分)根据句意及首字母提示写单词。
(压轴题)初中化学九年级上册第九单元《溶液》测试卷(答案解析)
一、选择题1．(0分)[ID：133617]下列说法正确的是（）A．利用洗洁精的乳化作用，可洗去餐具上的油污B．降低温度一定能使不饱和溶液变为饱和溶液C．水是由氢气和氧气组成D．电解水实验中，正极与负极产生的气体质量比约为1：22．(0分)[ID：133612]逻辑推理是化学学习常用的思维方法，下列推理正确的是( ) A．溶液具有均一性和稳定性，均一、稳定的液体一定是溶液B．原子在化学变化中不能再分，则分子在化学变化中也不能再分C．氧化物都含有氧元素，所以含有氧元素的化合物都是氧化物D．点燃H2与O2混合气体可能爆炸，则点燃煤气(CO)与O2的混合气体也可能爆炸3．(0分)[ID：133610]将溶液的溶质质量分数提高一倍，下列做法能达到目的的是A．向100克溶质质量分数为10%的氯化钠溶液中加入10克氯化钠，完全溶解B．把100克溶质质量分数为10%的稀盐酸蒸发掉50克水C．向100克5%的蔗糖水中加入100克15%的蔗糖水D．向20%的硝酸钾溶液中加入10克硝酸钾和40克水4．(0分)[ID：133606]如图所示，将少量液体X加入到烧瓶中，观察到气球逐渐膨胀。
如下表中液体X和固体Y的组合，符合题意的是①②③④X水水水双氧水Y氯化钠氢氧化钠硝酸铵二氧化锰A．①B．③C．②③D．②④5．(0分)[ID：133600]保持其它条件不变，欲使接近饱和的硝酸钠溶液变成饱和溶液，下列方法中不可行的是（）A．蒸发溶剂B．降低温度C．加入硝酸钠固体D．升高温度6．(0分)[ID：133596]甲、乙、丙三种固体物质的溶解度曲线如图所示，下列说法正确的是（）A．分别将甲、乙、丙三种物质t2℃的饱和溶液降温到t1℃，所得溶液溶质的质量分数乙>甲=丙B．t2℃时，将10g甲物质加入到50g水中，再降温到t1℃，所得溶液溶质的质量分数不变C．降温可使丙物质的不饱和溶液变成饱和溶液D．t2℃时，等质量甲、乙、丙的饱和溶液中溶剂的质量：甲>乙>丙7．(0分)[ID：133592]甲、乙、丙三种物质的溶解度曲线如图所示，下列说法正确的是A．甲是易溶物B．60℃时，将等质量的甲、乙饱和溶液降温至40℃，溶液的质量乙>甲C．60℃时，将100g乙的饱和溶液配成质量分数为5%的溶液，需加水380gD．甲中混有少量丙，若要得到较纯净的甲，常采用蒸发结晶的方法8．(0分)[ID：133591]如图是柠檬酸在水中和甘油中的的溶解度曲线。
人教版九年级英语全一册《Unit 9 单元综合测试卷》测试题及参考答案
人教版九年级英语全一册Unit9单元综合测试卷(分数:100分时间:90分钟)第一卷听力部分(20分)Ⅰ.听句子,选择与所听句子相符合的图片(5分)1.2.3.4.5.Ⅱ.听对话和对话后面的问题,选择最佳答案(5分)6.A.Pop music. B.Classical music. C.Country music.7.A.Yes,she does.B.No,she doesn’t. C.We don’t know.8.A.Pirates(海盗)of Caribbean. B.Harry Potter. C.Titanic.9.A.Yes,she does.B.No,she doesn’t. C.We don’t know.10.A.She went to the cinema. B.She went to a concert.C.She went swimming.Ⅲ.听短文和短文后面的问题,选择最佳答案(5分)11.A.He was a famous musician.B.He was an owner of a restaurant.C.He was a poet.12.A.Yes,he did. B.No,he didn’t. C.We don’t know.13.A.To write a poem for his Berceuse.B.To have dinner together with his friend.C.To see if he could find some friends who could lend him some money for a meal.14.A.He was also a musician.B.He was very kind.C.He didn’t understand music very much.15.A.The passage didn’t tell us.B.At the age of thirty.C.Soon after he wrote his famous Berceuse.Ⅳ.听短文,完成表格信息。
九年级全一册英语unit 9 单元测试卷
九年级全一册英语unit 9单元测试卷一.根据句意及首字母或汉语提示完成句中单词。
1.Lucy cut one of her fingers,and blood came out from the w2.Tina got good grades in the exams and Miss Lee p her.3.As we all know, Abing is one of the most famous m of erhu.4.You won't get lost in the forest if you have a good s of direction.5.Could you play the (电子的)instrument at the concert?6.I listen to the (悦耳的) music to relax.7.If you have (空闲的)time, do you want to watch TV with me?8.He is the (导演)of this movie.We like him very much.9.Can you tell me your favorite （超级英雄）？二.用所给单词的适当形式填空。
1. We made him ________(direct) of our department.2. The man is one of the most famous ________(music) in the world.3. I have never seen Beijing Opera ________(perform) so beautifully.4. There are plenty of ________(egg) in the basket.5. —What kind of songs ________(interesting) young people?—Pop songs, I think.6. This has been a ________ (pain) lesson to me.7. The teacher highly ________ (praise) Jack for his homework because he did it very well.8. Linda ________ (prefer) skating last year, but now she doesn't.9. Sometimes life is filled with ________ (sad). No matter what happens, we should face it bravely.三.阅读理解。
人教版新目标英语九年级(全一册)Unit 9《I like music that I can dance to》单元测试卷
九年级英语第九单元测试卷一．根据句意和首字母提示写单词，是句子完整。
1.Which would you p______, tea or coffee?2.I like singers who write their own l_______.3.He is speaking in a g______ voice.4.She r______ me that I hadn’t watered the flowers.5.The music is great because you can d________ to it.6.I have only r________ started learning French.7.That is your business. So it isn’t really i_______ to me.8.S. H. E is my favorite g________.9.My little brother likes movies that about m______.10.lu Xun is a great writer who e_____ things well.二．句型转换。
1.Carmen prefers musicians. The musicians can write their own sons.（同义句）Carmen prefers musicians _____ _____write their own songs.2.Joan likes popular music better than classic music.（同义句）Joan _____ popular music _____ classical music.3.He didn’t go to ask the teacher. He looked the word up in the dictionary.（同义句）He looked the word up in the dictionary ____ _____ ____ to ask the teacher.4.Whatever you do, don’t miss the exhibition.（同义句）_______ _____ what you do, don’t miss the exhibition.5.Mike loves loud music that they can dance to.（划线部分提问）______ ______ of loud music _____ Mike love?6.The magazine could be Carla’s because he likes reading magazines.（同上）________ ________ the magazine be Carla’s?7.“ Anxious” means “worried” in English.（同上）______ ______ “anxious”_______ in English?8.Lucy studies by reading the textbook for a test（同上）_______ does Lucy study for a test.第二课时一．用定于从句完成下列句子。
九年级英语人教版全一册_Unit9_单元测试卷(含答案)
人教版九年级英语unit9单元测试卷（含答案）一、听力（略）二、阅读理解(20小题，每小题2分，共40分)阅读下面四篇语言材料，然后按文后要求做题。
A( )21.If Chen Huan is free only on the evening of May 21, he can enjoy______.A. opera classicB. Spanish balletC. Haydn's Trumpet ConcertoD. Mozart's Flute Concerto( )22.Mr.Johnson likes Spanish ballet very much,so he can go to_______to see it.A. Tianqiao TheaterB. National TheaterC. Chaoyang TheaterD. Poly Theater( )23.Jane wants to buy a ticket to enjoy a traditional Chinese opera, so she should call_____________.A.8315-8116B.6506-8116C.6500-1188D.8315-6300( )24. The wonderful concert is held in Poly Theater at_______.A.30 Beiweilu,Xuanwu DistrictB.36 Dongsanhuan Beilu, Chaoyang DistrictC.14 Dongsanhuan Beilu, Dongcheng DistrictD.14 Dongzhimen Nandajie, Dongcheng District( )25.You can enjoy all the entertainment in the city of______.A.ShanghaiB. TianjinC. BeijingD. NanjingBAre you interested in country music? I like it very much! It will take me away for a while when I am tired. The guitars and songs will take me to the mountains and fields.Country music usually talks of everyday life and feelings. It's the spirit of America, easy to understand, slow and simple.Country music developed in the Southern United States. It was the folk music of American countryside. Many songs tell about the lives of farmers. They talk about love, crops or death.The life of the countryside can be hard, so the words in country music are often sad. At first, people played the music only at family parties. But it became more popular later. In the 1920s, people played country songs on the radio, and they made them into records.When people in the countryside moved to towns and cities to look for work, they took their music with them. Country music continued to change and became popular across America.John Denver was one of America's most famous country singers in the 1970s. His song Take Me Home, Country Roads is well known and people still play it today.( )26.Country music is usually about_______.A.everyday life and feelingsB.farmers' feelingsC. the lives of workersD.workers' feelings( )27. Country music developed_______.A.in John Denver's cityB.in the Southern United StatesC.in the Northern United StatesD. in the Western United States( )28. People began to make country song records_______.A.in the 1920sB. in 1920C.in the 1970sD.in 1970( )29.Why did country music become popular in America?A. Because city people liked the music.B. Because farmers moved to cities with their music and it continued to change.C.Because country music talked about city people's lives.D. Because city people liked the country.( )30. Who is famous for the song Take Me Home,Country Roads?A.A farmer in the countryside.B.A person who moved to the town.C. John Denver.D. Denver John.CDo you often listen to music at loud volumes(音量)? Over one billion(十亿) young people are at risk of hearing loss(失聪) because of listening to loud noise for long periods of time. Listening to music or watching a TV show at loud volumes is harmful to your hearing.The United Nations has standards for safe listening. It is not safe to listen to sounds that are louder than 85 decibels(dB分贝) for eight hours or 100 dB for 15 minutes. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100 dB.Loud noise is harmful to the inner ears(内耳). Most of us are born with about 16,000 hair cell(听毛细胞) in our inner ears. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. This is what causes hearing loss. Some people might think that their music isn't all that loud. But this can depend on where you are. For example, if you are in a noisy place like the subway,you might turn up your music too loud without realizing it.Later, when you listen to it at the same volume in a quiet place,you might feel uncomfortable.The World Health Organization said the "safe level" for most sounds is below 80 dB for up to 40 hours a week. A level of 80 dB is roughly equal to(大约相当于) the noise of a subway.( )31. Many young people are at risk of hearing loss because they_______.A. watch TV every dayB. listen to music every dayC. listen to loud noise in the subwayD.listen to loud noise for a long time( )32.The sound level of a rock concert is about_______.A.80 dbB.85 dBC.100 dBD.180dB( )33. What is loud noise harmful to?A. The inner ears.B. The brain.C. The heart.D. The eyes.( ）34. What can you learn from the passage?A. We feel comfortable when listening to loud music in a quiet place.B. Most people are born with about 1,600 hair cells in the inner ears.C. It is not safe to listen to sounds that are louder than 85 dB for 15 minutes.D. Below 80 dB for up to 40 hours a week is the “safe level” for most sounds.( )35. What is the best title of the passage?A. Keep the Loud VolumesB. Loud Noise Is Harmful to HearingC. The Risk of Listening to MusicD. Loud Noise Stops Ears from WorkingDAs one saying goes, “Where there are Chinese people,there are kung fu legends.”Jin Yong was regarded as one of the greatest kung fu fiction writers in China. He passed away on Oct. 30,2018,at the age of 94.36._____ His works have been adapted(改编) into many different versions(版本) of movies and TV series.37._______There is always a knight(大侠)who is sincere(真诚的) in love,friendship and patriotism in his stories. Such characters move many people. For example,in The Return of the Condor Heroes (《神雕侠侣》)，the young knight Yang Guo waits for his lover Xiao longnu for 16 years. 38._____ And in Demi-Gods and Semi-Devils(《天龙八部》), powerful Xiao Feng treats his friends with sincere feelings, ready to die for the peace of his homeland.Jin Yong has a wonderful command(指挥) of language. 39,______His stories are always full of rich history and describe the rationale(基本原理) of material in detail. His books bring readers joy, and hegets the same joy from his creating. 40. _______These are shown through the characters and their stories instead of lecturing(对……说教) readers.根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺、内容完整。
2019-2020学年新目标英语九年级Unit9单元测试卷有答案-(人教版)(精校版)
Unit 9 I like music that I can dance to单元测试卷时间：60分钟总分：100分一、单项选择(每小题1分，共15分)1．Jessica ______ walking ______ jogging.A．prefers；than B．prefers；toC．would rather；than D．would rather；to2. Wang Zulan is known______ people____the popular program Running Man.A．for; to B．to; to C．to; for D．as; for3．—What are you doing?—I met many new words when I read a storybook. I am ______ the wordsin the dictionary.A．looking up B．looking aroundC．looking like D．looking after4. —The radio says there will be a rainstorm this weekend, so we have to cancel the hikingto Nanshan.—______ I'm looking forward to it.A．Never mind. B．What a pity!C．My pleasure. D．No problem.5. Gina along with her parents______ going to France next week.A．is B．are C．was D．were6．It's dangerous for you to go out for a walk in the forest________at night.A．on business B．by the wayC．on your own D．out of the way7．Now more and more people are paying attention to protecting the environment. So we believe______ there will be less pollution in the future.A．loudly B．lovelyC．strongly D．carefully8. You're supposed ______ up your room before you go out.A．to clean B．cleanC．cleaning D．be cleaned9. I am sure Cindy will be able to find the hotel—she has a pretty good ______ of direction. A．idea B．feelingC．experience D．sense10. One of______ pieces of music that I have ever heard______ Liangzhu.A．the most moving; areB．the most moved; areC．the most moving；isD．the most moved；is11．This is one of the most interesting cities______I have ever visited.A．who B．thatC．which D．where12．She________a disabled man at last, which made her parents mad.A．married B．got marryingC．had married D．had been married to13．Not only____________been to Beijing, but also he lived there for half a year.A．did he B．has heC．have he D．he has14．Abing is a musician________is still memorized by people in China and even the world.A．who music B．whose musicC．which music D．that music15．There are about 2，000 people on the beach______. So it's really crowded now.A．plenty of B．once in a whileC．in that case D．in total二、完形填空(每小题1.5分，共15分)Abing, one of __16__ Chinese musicians of the 20th century, was born on August 17, 1893 in the eastern Chinese city of Wuxi.His official name was Hua Yanjun.Abing's father was good at a number of musical__17__. He trained Abing in drums from the age of 10. Abing began learning the dizi at age 12, then the erhu. When he was 17, Abing first __18__in religious ceremonies, and won acclaim for his musical talent and voice.After his father's__19__ in 1914, Abing along with his cousin took charge of the temple(庙)which supported the family. However, Abing didn't have the__20__ to run it well. This drove Abing into poverty(贫穷). However, bad luck never came_21__. At the age of 34, he developed a serious illness and became blind. He became __22__and made a living as a street performer.In 1939, he married Dong Caidi, a country woman in Jiangyin. After his__23__,__Abing performed every afternoon in a public square in Wuxi. He became famous for adding news into his music and songs，___24_the war with Japan. After the performance, he would walk through the city streets, playing the erhu. This was a period of many works for Abing, and his most famouscomposition, Erquan Yingyue, was performed in this period. Till today, it __25__as a classic of Chinese erhu and pipa music.16．A.important B．more importantC．most important D．the most important17．A.instruments B．instrumentC．tools D．materials18．A.performance B．performC．performing D．performed19．A.died B．dead C．death D．being died20．A.able B．ability C．smooth D．director21．A.along B．lonelyC．loneliness D．alone22．A.homeless B．hungerC．electronic D．afraid23．A.marriage B．marryC．married D．getting marry24．A.specially B．particularC．especially D．pity25．A.considered B．thoughtC．is treat D．is regarded三、阅读理解(每小题3分，共15分)A．happy B．sad C．bored27．Tony's favorite book is______．A．Twenty Thousand Leagues Under the SeaB．The Romance of the Three KingdomsC．The Little Prince28．We can learn a lot about ______ from The Romance of the Three Kingdoms.A．traveling B．history C．science29．Mary thinks The Little Prince is the best because ______．A．it has fantastic picturesB．it can deal with her autismC．it tells about the correct values30．The best title for this passage is“______”．A.My Best FriendB.My Favorite BookC.My Favorite Movie四、任务型阅读(每小题2分，共10分)Chinese people are getting bigger. More and more Chinese people are overweight. About 23% of the Chinese boys under twenty were overweight, while for girls it was 14%, said a news report in 2013. China was listed as the second most overweight country in the world, after the US.Part of the reason is our growing economy (经济). Chinese families now make enough money to buy more food, especially fatty food such as meat. In 1980, the average (平均) person in China ate 12 kg of meat. The number increased to 60 kg in 2013. And many people also eat at fast food stores a lot.They take in a lot of fatty food but exercise little. Each year, 2.8 million adults die of illnesses such as diabetes and heart illnesses.We all need to follow the following healthy lifestyles. To stay in shape, people should eat less sugar and fat. People need to have less candy and red meat, too. Children need to do at least an hour of exercise every day, such as running and playing football on the playground. Many children now take part in special summer camps to lose weight. It's very important for children to grow up happily．31题完成句子；32～33题简略回答问题；34题找出并写下第三段的主题句；35题将文中画线句子译成汉语。
九年级化学下册第九单元《溶液》测试卷-人教版(含答案)
九年级化学下册第九单元《溶液》测试卷-人教版（含答案）附相对原子质量：H-1 C-12 N-14 O-16一、本大题包括12小题，每小题1分，共12分。
每小题的4个备选答案中只有一个答案符合题意。
1、下列物质与水混合，不可能形成溶液的是（）A．胆矾B．纯碱C．汽油D．白醋2、下列去“污”的方法中，利用了乳化原理的是（）A．用洗涤剂除去餐具上的油脂B．用酒精除去附着在试管内壁的碘C．用汽油除去衣物上的油污D．用热水除去附着在烧杯底部的硝酸钾3、2021年7月，新冠病毒的变异体德尔塔病毒在整个欧洲大规模传播。
75%的酒精可杀灭新冠病毒，酒精溶液中的溶剂是（）A．乙醇B．白醋C．水D．食盐4、水是一种最常用的溶剂。
下列做法或说法正确的是（）A．用絮凝剂明矾可降低水的硬度B．硝酸铵溶于水制成的冰袋可给高烧病人降温C．天然水经过自然沉降、过滤、吸附，即得纯水D．用150mL 酒精和50mL 蒸馏水混合配制成200mL 的75％的医用酒精5、下列物质加入水中，能形成溶液并且温度不会发生明显改变的是（）A．硝酸铵B．牛奶C．氢氧化钠D．氯化钠6、配制一定溶质质量分数的溶液，下列仪器不需要的是（）A．量筒B．胶头滴管C．烧杯D．漏斗7、啤酒内溶有一定量的二氧化碳气体，打开瓶盖时，你会发现啤酒会喷出来。
喝了啤酒后又会常常打嗝，这说明气体在水中的溶解度与压强和温度有关。
下列关于气体溶解度的说法正确的是（）A．压强减小，气体溶解度增大B．压强增大，气体溶解度减小C．温度升高，气体溶解度减小D．温度降低，气体溶解度减小8、甲、乙的溶解度曲线如图所示（不考虑水的变化），下列说法正确的是（）A．t2℃时，甲的饱和溶液中溶质质量分数为40%B．t1℃时，将甲、乙的饱和溶液分别升温到t2℃，两溶液中溶质质量分数相等C．依据溶解度曲线可判断，甲的溶解度比乙的大D．t2℃时，将甲、乙的饱和溶液分别降温到t1℃，甲析出的晶体质量大9、下列对课本中的图表、数据的使用，叙述不正确的是（）A．根据金属活动性顺序表，判断金属能否与稀盐酸、稀硫酸反应产生氢气B．根据元素周期表，可以查找元素原子核内中子的数目C．根据“一些常见元素和根的化合价”表，可以确定铵根的化合价为+1价D．根据物质的溶解度曲线图，可确定该物质在某一温度时的溶解度10、下列关于“生活中的化学”的叙述中，不正确的是（）A．冬天用炭火盆取暖要注意关闭门窗B．常用铁制品保持清洁干燥能防止生锈C．钻石项链不能放到火上灼烧D．菜汤太咸了可以适当加些水11、为了探究物质的溶解现象，设计了如下实验：实验现象固体溶解，形成紫色溶液固体几乎不溶解固体溶解，形成紫红色溶液根据上表得出下列说法错误的是（）A．物质的溶解性受到溶质与溶剂性质影响B．②号试管所得液体是乳浊液C．不同溶质在同一种溶剂中的溶解特性不同D．同种溶质在不同溶剂中的溶解特性不同12、下列排序正确的是（）A．溶解时放出的热量： B．氮元素的化合价：C．地壳中元素含量：D．金属活动性顺序：二、本大题包括5小题，共28分13、阅读下列短文，回答问题。
(精)新人教版九年级数学上册全单元测试卷(含答案)
新人教版九年级数学上个单元测试卷(含答案)第二十一章过关自测卷 （100分，45分钟）一、选择题（每题3分，共21分）1.下列方程是关于x 的一元二次方程的是（ ） A.ax 2+bx +c =0 B.211x x=2 C.x 2+2x =y 2－1 D.3(x +1)2=2(x +1)2.若一元二次方程ax 2+bx +c =0有一根为0，则下列结论正确的是（ ） A.a =0 B.b =0 C.c =0 D.c ≠03.一元二次方程x 2－2x －1=0的根的情况为（ ） A.有两个相等的实数根 B.有两个不相等的实数根 C.只有一个实数根 D.没有实数根4.方程x 2+6x =5的左边配成完全平方式后所得方程为（ ） A.(x +3)2=14 B.(x －3)2=14C.(x +6)2=12D.以上答案都不对 5.已知x =2是关于x 的方程32x 2－2a =0的一个根，则2a －1的值是（ ） A.3 B.4 C.5 D.66.某县为发展教育事业，加强了对教育经费的投入，2012年投入3亿元，预计2014年投入5亿元．设教育经费的年平均增长率为x ，根据题意，下面所列方程正确的是（ ） A ．3（1+x )2=5 B ．3x 2=5C. 3(1+x ％)2=5D. 3(1+x ) +3(1+x )2=57.使代数式x 2－6x －3的值最小的x 的取值是（ ） A.0 B.－3 C.3 D.－9 二、填空题（每题3分，共18分）8.已知x =1是一元二次方程x 2+mx +n =0的一个根，则m 2+2mn +n 2的值为________． 9.如果方程ax 2+2x +1=0有两个不等实数根，则实数a 的取值范围是____________.10.已知α、β是一元二次方程x 2－4x －3=0的两实数根，则代数式（α－3）（β－3）=________．11.在一幅长50 cm ，宽30 cm 的风景画的四周镶一条金色纸边，制成一幅矩形挂图，如图1所示，如果要使整个挂图的面积是1 800 cm 2,设金色纸边的宽为x cm ，那么x 满足的方程为________________.112．已知x 是一元二次方程x 2+3x －1=0的实数根，那么代数式2352362x x x x x -⎛⎫÷+- ⎪--⎝⎭的值为________．13.三角形的每条边的长都是方程x 2－6x +8=0的根，则三角形的周长是_______________.三、解答题（14、19题每题12分，15题8分，16题9分，其余每题10分，共61分）14.我们已经学习了一元二次方程的四种解法：因式分解法，开平方法，配方法和公式法．请从以下一元二次方程中任选一个．．，并选择你认为适当的方法解这个方程． ①x 2－3x +1=0;②(x －1)2=3；③x 2－3x =0;④x 2－2x =4．15.已知关于x 的方程x 2＋kx －2＝0的一个解与方程11x x +-=3的解相同. （1）求k 的值；（2）求方程x 2＋kx －2＝0的另一个解.16.关于x的一元二次方程x2－3x－k=0有两个不相等的实数根．（1）求k的取值范围；（2）请选择一个k的负整数值，并求出方程的根．17.〈绍兴〉某公司投资新建了一商场,共有商铺30间.据预测,当每间的年租金定为10万元时,可全部租出.每间的年租金每增加5 000元,少租出商铺1间.该公司要为租出的商铺每间每年交各种费用1万元,未租出的商铺每间每年交各种费用5 000元.（1）当每间商铺的年租金定为13万元时,能租出多少间？（2）当每间商铺的年租金定为多少万元时,该公司的年收益（收益＝租金－各种费用）为275万元？18.中秋节前夕，旺客隆超市采购了一批土特产，根据以往销售经验，每天的售价与销售量之间有如下表的关系：（2）如果这种土特产的成本价是20元/千克，为使某一天的利润为780元，那么这一天的销售价应为多少元/千克？（利润=销售总金额－成本）19.如图2，A、B、C、D为矩形的四个顶点，AB=16 cm，AD=6 cm，动点P、Q分别从点A、C同时出发，点P以3 cm/s的速度向点B移动，一直到达B为止，点Q以2 cm/s的速度向点D移动.（1）P、Q两点从出发开始到几秒时四边形PBCQ的面积为33 cm2？图2 （2）P、Q两点从出发开始到几秒时，点P和点Q的距离是10 cm？第二十二章过关自测卷（100分,45分钟）一、选择题（每题4分，共32分）1.抛物线y=ax2+bx－3过点（2，4），则代数式8a+4b+1的值为（）A.－2B.2C.15D.－152.图1是一个横断面为抛物线形状的拱桥，当水面在l时，拱顶（拱桥洞的最高点）离水面2 m，水面宽4 m.如图2建立平面直角坐标系，则抛物线的关系式是（）图1 图2A.y=－2x2B.y=2x2C.y=－12x2 D.y=12x23.〈恩施州〉把抛物线y=12x2－1先向右平移1个单位，再向下平移2个单位，得到的抛物线的解析式为（）A.y=12(x+1)2－3B.y=12(x－1)2－3C.y=12(x+1)2+1D.y=12(x－1)2+12a≠0）中的x与y的部分对应值如下表：给出了结论：（1）二次函数y=ax2+bx+c有最小值，最小值为－3；（2）当－12＜x＜2时，y＜0；（3）二次函数y=ax2+bx+c的图象与x轴有两个交点，且它们分别在y轴两侧.则其中正确结论的个数是（）A.3 B.2C.1D.05.〈舟山〉若一次函数y=ax+b（a≠0）的图象与x轴的交点坐标为（－2，0），则抛物线y=ax2+bx的对称轴为（）A.直线x=1B.直线x=－2C.直线x=－1D.直线x=－46.设一元二次方程（x－1）（x－2）=m（m＞0）的两实根分别为α，β，且α＜β，则α，β满足（）C.α＜1＜β＜2D.α＜1且β＞27.〈内江〉若抛物线y=x2－2x+c与y轴的交点为（0，－3），则下列说法不正确的是（）A.抛物线开口向上B.抛物线的对称轴是直线x=1C.当x=1时，y的最大值为－4D.抛物线与x轴的交点为（－1，0），（3，0）8.〈南宁〉已知二次函数y=ax2+bx+c（a≠0）的图象如图3所示，下列说法错误的是（）A.图象关于直线x=1对称B.函数y=ax2+bx+c（a≠0）的最小值是－4C.－1和3是方程ax2+bx+c=0（a≠0）的两个根D.当x＜1时，y随x的增大而增大图3二、填空题（每题4分，共32分）9.已知抛物线y=－13x2+2，当1≤x≤5时，y的最大值是______.10.已知二次函数y=x2+bx－2的图象与x轴的一个交点为（1，0），则它与x轴的另一个交点坐标是__________.11.已知函数y=(k－3)x2+2x+1的图象与x轴有公共点，则k的取值范围是________.12.一小球被抛出后，距离地面的高度h（米）和飞行时间t（秒）满足下面函数关系式：h=－5(t－1)2+6，则小球距离地面的最大高度是________.13.二次函数y=ax2+bx的图象如图4，若一元二次方程ax2+bx+m=0有实数根，则m的最大值为__________.图4 图514.如图5，已知函数y=－3x与y=ax2+bx（a>0，b>0）的图象交于点P，点P的纵坐标为1，则关于x的方程ax2+bx+3x=0的解为_______.15.将一条长为20 cm的铁丝剪成两段，并以每一段铁丝的长度为周长各做成一个正方形，则这两个正方形面积之和的最小值是__________ cm2.16.如图6，把抛物线y=12x2平移得到抛物线m，抛物线m经过点A(－6，0)和原点O(0，0)，它的顶点为P，它的对称轴与抛物线y=12x2交于点Q，则图中阴影部分的面积为__________.图6三、解答题（每题12分，共36分）17.〈牡丹江〉如图7，已知二次函数y=x2+bx+c的图象过点A（1，0），C（0，－3）. （1）求此二次函数的解析式；（2）在抛物线上存在一点P使△ABP的面积为10，请求出点P的坐标.图718.在平面直角坐标系xOy中，O为坐标原点，已知抛物线y=x2－(k+2)x+14k2+1.（1）k取什么值时，此抛物线与x轴有两个交点？（2）若此抛物线与x轴交于A(x1,0)、B(x2,0)两点(点A在点B左侧)，且x1+x2=3，求k的值.19.〈广州〉已知抛物线y 1=ax 2+bx +c 过点A (1,0)，顶点为B ，且抛物线不经过第三象限. （1）使用a 、c 表示b ;（2）判断点B 所在象限，并说明理由；（3）若直线y 2=2x +m 经过点B ，且与该抛物线交于另一点C ,8c b a ⎛⎫+ ⎪⎝⎭,求当x ≥1时y 1的取值范围.第二十三章过关自测卷（100分,45分钟）一、选择题（每题3分，共24分）1．已知下列命题：①关于一点对称的两个图形一定不全等；②关于一点对称的两个图形一定是全等图形；③两个全等的图形一定关于一点对称.其中真命题的个数是（）A．0 B．1 C．2 D．32．〈江苏泰州〉下列标志图(图1)中，既是轴对称图形，又是中心对称图形的是（）图13．如图2，在正方形ABCD中，E为DC边上的点，连接BE，将△BCE绕点C顺时针方向旋转90°得到△DCF，连接EF，若∠BEC＝60°，则∠EFD的度数为（）图2A.10°B.15°C.20°D.25°4．如图3①，将正方形纸片两次对折，并剪出一个菱形小洞后铺平，得到的图形是图3②中的（）图35．如图4所示的图案中，绕自身的某一点旋转180°后还能与自身重合的图形的个数是（）图4A.1B.2C.3D.4C．第三象限D．第四象限7.将正方体骰子（相对面上的点数分别为1和6、2和5、3和4）放置于水平桌面上，如图5①．在图5②中，将骰子向右翻滚90°，然后在桌面上按逆时针方向旋转90°，则完成一次变换．若骰子的初始位置为图5①所示的状态，那么按上述规则连续完成10次变换后，骰子朝上一面的点数是（）图5A．6 B．5 C．3 D．28．如图6，在Rt△ABC中，∠ACB=90°，∠A=30°，BC=2，将△ABC绕点C按顺时针方向旋转n度后，得到△EDC，此时，点D在AB边上，斜边DE交AC边于点F，则n的大小和图中阴影部分的面积分别为（）A. 30，2B.60，2C.60D.60图6二、填空题（每题4分，共24分）9．如图7，E、F分别是正方形ABCD的边BC、CD上的点，BE=CF，连接AE、BF．将△ABE绕正方形的中心按逆时针方向旋转到△BCF，旋转角为α（0°＜α＜180°），则α=_______．图710.如图8，△ABC的顶点坐标分别为A（4，6）、B（5，2）、C（2，1），如果将△ABC绕点C按逆时针方向旋转90°，得到△A′B′C，那么点A的对应点A′的坐标是_______．图8A′、C′仍落在格点上，则线段AB扫过的图形的面积是_______平方单位（结果保留π）．图9 图1012.直线y=x+3上有一点P(3,n)，则点P关于原点的对称点P′为_______.13.如图10，△ABC是直角三角形，BC是斜边，将△ABP绕点A逆时针旋转后，能与△ACP′重合，若AP=3，则PP′的长是_______．14.如图11①，在△AOB中，∠AOB=90°，OA=3，OB=4．将△AOB沿x轴依次以点A、B、O为旋转中心顺时针旋转，分别得到图11②、图11③、…，则旋转得到的图11⑩的直角顶点的坐标为_______．图11三、解答题（17题10分，18题12分，19题14分，其余每题8分，共52分）15.如图12，在平面直角坐标系中，三角形②③是由三角形①依次旋转后所得的图形．图12（1）在图中标出旋转中心P的位置，并写出它的坐标；（2）在图中画出再次旋转后的三角形④．16．如图13所示，（1）观察图①～④中阴影部分构成的图案，请写出这四个图案都具有的两个共同特征：图13（2）借助图⑤的网格，请设计一个新的图案，使该图案同时具有你在解答（1）中所给出的两个共同特征．（注意：①新图案与图①～④的图案不能重合；②只答第(2)问而没有答第（1）问的解答不得分）17.如图14，矩形ABCD和矩形AEFG关于点A中心对称，（1）四边形BDEG是菱形吗？请说明理由；图14（2）若矩形ABCD面积为2，求四边形BDEG的面积．18.如图15，在平面直角坐标系中，O为坐标原点，每个小方格的边长为1个单位长度．正方形ABCD顶点都在格点上，其中，点A的坐标为（1，1）．（1）若将正方形ABCD绕点A顺时针方向旋转90°，点B到达点B1，点C到达点C1，点D到达点D1，求点B1、C1、D1的坐标;图15（2）若线段AC1的长度与点D1的横坐标的差恰好是一元二次方程x2+ax+1=0的一个根，求a的值．19.〈潍坊〉如图16①所示，将一个边长为2的正方形ABCD和一个长为2、宽为1的长方形CEFD拼在一起，构成一个大的长方形ABEF．现将小长方形CEFD绕点C顺时针旋转至长方形CE′F′D′，旋转角为α．图16（1）当点D′恰好落在EF边上时，求旋转角α的值；（2）如图16②，G为BC中点，且0°＜α＜90°，求证：GD′= E′D；（3）小长方形CEFD绕点C顺时针旋转一周的过程中，△DCD′与△CBD′能否全等？若能，直接写出旋转角α的值；若不能，说明理由．第二十四章过关自测卷（100分,45分钟）一、选择题（每题4分，共32分）1.〈重庆〉如图1，AB是⊙O的切线，B为切点，AO与⊙O交于点C，若∠BAO=40°，则∠OCB的度数为（）A．40°B．50°C．65°D．75°图1 图22.〈甘肃兰州〉如图2是一圆柱形输水管的横截面，阴影部分为有水部分，如果水面AB宽为8 cm，水面最深地方的高度为2 cm，则该输水管的半径为（）A．3 cm B．4 cm C．5 cm D．6 cm3.〈甘肃兰州〉圆锥底面圆的半径为3 cm，其侧面展开图是半圆，则圆锥母线长为（）A．3 cm B．6 cm C．9 cm D．12 cm图3 图44.如图3，边长为a的六角螺帽在桌面上滚动（没有滑动）一周，则它的中心O点所经过的路径长为（）A．6a B．5a C．2aπD aπEB的中点，则下列结论不成立的是（）5.〈山东泰安〉如图4，已知AB是⊙O的直径，AD切⊙O于点A，点C是⌒A．OC//AE B．EC=BCC．∠DAE=∠ABE D．AC⊥OE6.〈2013,晋江市质检〉如图5，动点M，N分别在直线AB与CD上，且AB//CD，∠BMN与∠MND的平分线相交于点P，若以MN为直径作⊙O，则点P与⊙O的位置关系是（）图5A．点P在⊙O外B．点P在⊙O内C．点P在⊙O上D．以上都有可能7.△ABC中，AB=AC，∠A为锐角，CD为AB边上的高，I为△ACD的内切圆圆心，则∠AIB的度数是（）A．120°B．125°C．135°D．150°8.〈贵州遵义〉如图6，将边长为1 cm的等边三角形ABC沿直线l向右翻动（不滑动），点B从开始到结束，所经过路径的长度为（）图6A．32πcm B．322⎛⎫+⎪⎝⎭πcm C．43πcm D．3 cm二、填空题（每题4分，共24分）9.〈四川巴中〉如图7，已知⊙O是△ABD的外接圆，AB是⊙O的直径，CD是⊙O的弦，∠ABD=58°，则∠BCD 等于________.图7 图810.〈重庆〉如图8，一个圆心角为90°的扇形，半径OA=2，那么图中阴影部分的面积为________（结果保留π）．11.〈贵州遵义〉如图9，在Rt△ABC中，∠ACB=90°，AC=BC=1，E为BC边上的一点，以A为圆心，AE为半径的圆弧交AB于点D，交AC的延长于点F，若图中两个阴影部分的面积相等，则AF的长为________（结果保留根号）．图9 图1012.如图10，△ABC为等边三角形，AB=6，动点O在△ABC的边上从点A出发沿着A→C→B→A的路线匀速运动一周，速度为每秒1个单位长度，以O ABC的边第二次相切时是出发后第________秒．13.如图11,正六边形ABCDEF中,AB=2,P是ED的中点,连接AP,则AP的长为________.图11 图1214.如图12，AB为半圆O的直径，C为半圆的三等分点，过B，C两点的半圆O的切线交于点P，若AB的长是2a，则P A的长是________．三、解答题（15题9分，16题10分，17题11分，18题14分，共44分）15. 如图13所示，△ABC中，∠ACB=90°，AC=2 cm，BC=4 cm，CM是AB边上的中线，以C长为半径画圆，则点A，B，M与⊙C的位置关系如何？图1316. 如图14，已知CD是⊙O的直径，点A为CD延长线上一点，BC=AB，∠CAB=30°.（1）求证：AB是⊙O的切线；图14（2）若⊙O的半径为2，求⌒BD的长．17.如图15，从一个直径为4的圆形铁片中剪下一个圆心角为90°的扇形ABC．（1）求这个扇形的面积；图15（2）在剩下的材料中，能否从③中剪出一个圆作为底面，与扇形ABC围成一个圆锥？若不能，请说明理由；若能，请求出剪的圆的半径是多少．18. 如图16，在平面直角坐标系中，以坐标原点O为圆心，2为半径画⊙O，P是⊙O上一动点，且P在第一象限内，过点P作⊙O的切线与x轴相交于点A，与y轴相交于点B．（1）点P在运动时，线段AB的长度也在发生变化，请写出线段AB长度的最小值，并说明理由；图16（2）在⊙O上是否存在一点Q，使得以Q，O，A，P为顶点的四边形是平行四边形？若存在，请求出Q点的坐标；若不存在，请说明理由．第二十五章过关自测卷（100分,45分钟）一、选择题（每题3分，共24分）1.〈大连〉一个不透明的袋子中有3个红球和2个黄球，这些球除颜色外完全相同．从袋子中随机摸出一个球，它是黄球的概率为（）A．13B．25C．12D．352.〈牡丹江〉小明制作了十张卡片，上面分别标有1～10这十个数．从这十张卡片中随机抽取一张恰好能被4整除的概率是（）A．110B．25C．15D．3103.〈贵阳〉一个不透明的盒子里有n个除颜色外其他完全相同的小球，其中有6个黄球．每次摸球前先将盒子里的球摇匀，任意摸出一个球记下颜色后再放回盒子，通过大量重复摸球试验后发现，摸到黄球的频率稳定在30%，那么可以推算出n大约是（）A．6 B．10 C．18 D．204.一纸箱内有红、黄、蓝、绿四种颜色的纸牌，且图1所示为各颜色纸牌数量的统计图．若小华自箱内抽出一张牌，且每张牌被抽出的机会相等，则他抽出红色牌或黄色牌的机（概）率为（）A．15B．25C．13D．12图15.小江玩投掷飞镖的游戏，他设计了一个如图2所示的靶子，点E、F分别是矩形ABCD的两边AD、BC上的点，EF∥AB，点M、N是EF上任意两点，则投掷一次，飞镖落在阴影部分的概率是（）A. 13B.23C.12D.34图26.〈临沂〉如图3，在平面直角坐标系中，点A1，A2在x轴上，点B1，B2在y轴上，其坐标分别为A1（1，0），A2（2，0），B1（0，1），B2（0，2），分别以A1、A2、B1、B2其中的任意两点与点O为顶点作三角形，所作三角形是等腰三角形的概率是（）A. 34B.13C.23D.12图3 图47.在学习概率时，老师说：“掷一枚质地均匀的硬币，正面朝上的概率是12”，小明做了下列三个模拟试验来验证．①取一枚新硬币，在桌面上进行抛掷，计算正面朝上的次数与总次数的比值；②把一个质地均匀的圆形转盘平均分成偶数份，并依次标上奇数和偶数，转动转盘，计算指针落在奇数区域的次数与总次数的比值；③将一个圆形纸板放在水平的桌面上，纸板正中间放一个圆锥（如图4），从圆锥的正上方往下撒米粒，计算其中一半纸板上的米粒数与纸板上总米粒数的比值．上面的试验中，不科学的有（）A．0个B．1个C．2个D．3个8.小强、小亮、小文三位同学玩投硬币游戏．三人同时各投出一枚均匀硬币，若出现三个正面向上或三个反面向上，则小强赢；若出现两个正面向上一个反面向上，则小亮赢；若出现一个正面向上两个反面向上，则小文赢．下面说法正确的是（）A．小强赢的概率最小B．小文赢的概率最小C．小亮赢的概率最小D．三人赢的概率相等二、填空题（每题3分，共18分）9.〈长沙〉在一个不透明的盒子中装有n个小球，它们只有颜色上的区别，其中有2个红球，每次摸球前先将盒中的球摇匀，随机摸出一个球记下颜色后再放回盒中，通过大量重复试验后发现，摸到红球的频率稳定于0.2，那么可以推算出n大约是_______．10.一只昆虫在如图5所示的树枝上爬行，假定昆虫在每个岔路口都会随机地选择一条路径，则它停留在A 叶面的概率是_______.图5 图611.如图6，电路图上有编号为①②③④⑤⑥共6个开关和一个小灯泡，闭合开关①或同时闭合开关②③或同时闭合开关④⑤⑥都可使这个小灯泡发光，问任意闭合电路上其中的两个开关，小灯泡发光的概率为_______．12.王红和刘芳两人在玩转盘游戏，如图7，把转盘甲、乙分别分成3等份，并在每一份内标上数字，游戏规则是：转动两个转盘，停止后，指针所指的两个数字之和为7时，王红胜；数字之和为8时，刘芳胜．那么这二人中获胜可能性较大的是_______．图713.〈重庆〉在平面直角坐标系xOy中,直线y=－x+3与两坐标轴围成一个△AOB.现将背面完全相同,正面分别标有数1、2、3、12、13的5张卡片洗匀后，背面朝上，从中任取一张，将该卡片上的数作为点P的横坐标，将该数的倒数作为点P的纵坐标，则点P落在△AOB内的概率为_______.14.〈济宁〉甲、乙、丙三人站成一排合影留念，则甲、乙二人相邻的概率是_______.三、解答题（18题10分，19，20题每题12分，其余每题8分，共58分）15.已知口袋内装有黑球和白球共120 个，请你设计一个方案估计一下口袋内有多少个黑球，多少个白球？16.在一个口袋中有4个完全相同的小球，把它们分别标号为1、2、3、4，随机地摸出一个小球然后放回，再随机地摸出一个小球，求下列事件的概率：（1）两次摸出的小球的标号相同；（2）两次摸出的小球标号的和等于4．17.〈扬州〉端午节期间，扬州某商场为了吸引顾客，开展有奖促销活动，设立了一个可以自由转动的转盘，转盘被分成4个面积相等的扇形，四个扇形区域里分别标有“10元”、“20元”、“30元”、“40元”的字样（如图8）．规定：同一日内，顾客在本商场每消费满100元就可以转转盘一次，商场根据转盘指针指向区域所标金额返还相应数额的购物券，某顾客当天消费240元，转了两次转盘．（1）该顾客最少可得_______元购物券，最多可得______元购物券；（2）请用画树状图或列表的方法，求该顾客所获购物券金额不低于50元的概率．图818.〈包头〉甲、乙两人在玩转盘游戏时，把两个可以自由转动的转盘A、B分成4等份、3等份的扇形区域，并在每一小区域内标上数字（如图9所示），指针的位置固定．游戏规则：同时转动两个转盘，当转盘停止后，若指针所指两个区域的数字之和为3的倍数，则甲胜；若指针所指两个区域的数字之和为4的倍数，则乙胜．如果指针落在分割线上，则需要重新转动转盘．（1）试用列表或画树状图的方法，求甲获胜的概率；图9（2）请问这个游戏规则对甲、乙双方公平吗？试说明理由．19.有三张正面分别写有数－2 ,－1，1的卡片，它们的背面完全相同，将这三张卡片背面朝上洗匀后随机抽取一张，以其正面的数作为x的值，放回卡片洗匀，再从三张卡片中随机抽取一张，以其正面的数作为y的值，两次结果记为（x，y）.（1）用画树状图法或列表法表示（x，y）所有可能出现的结果；（2）求使代数式2223x xy yx y x y-+--有意义的（x ，y ）出现的概率；（3）化简代数式2223x xy yx y x y-+--，并求使代数式的值为整数的（x ，y ）出现的概率.20.〈潍坊〉 随着我国汽车产业的发展，城市道路拥堵问题日益严峻，某部门对15个城市的交通状况进行了调查，得到的数据如下表所示．（1）根据上班花费时间，将下面的频数分布直方图（如图10）补充完整；图10（2）求15个城市的平均上班堵车时间（计算结果保留一位小数）；（3）规定：城市的堵车率=-上班堵车时间上班花费时间上班堵车时间×100%，比如，北京的堵车率=145214-×100%≈36.8%；沈阳的堵车率=123412-×100%≈54.5%，某人欲从北京，沈阳，上海，温州四个城市中任意选取两个作为出发目的地，求选取的两个城市的堵车率都超过30%的概率．期末选优拔尖测试（120分,90分钟）一、选择题（每题3分，共24分）1.如图1所示的图形中,既是轴对称图形又是中心对称图形的是( )图12.下列成语所描述的事件是必然事件的是（）A．水中捞月B．拔苗助长C．守株待兔D．瓮中捉鳖3.如图2,AB是⊙O的直径，∠ACD=15°，则∠BAD的度数为（）A．75°B．72°D．65°图2 图34.有一块长为30 m，宽为20 m的矩形菜地，准备修筑同样宽的三条直路（如图3），把菜地分成六块作为试验田，种植不同品种的蔬菜，并且种植蔬菜面积为矩形菜地面积的34，设道路的宽度为x m，下列方程：①30x+20x×2=30×20×14；②30x+20x×2－2x2=30×20×14；③(30－2x)(20－x)=30×20×34,其中正确的是（）A．①②B．①③C．②③D．①②③5.已知关于x的一元二次方程x2－2x=m有两个不相等的实数根，则m的取值范围是（）A．m<1 B．m<－2C．m=0 D．m>－16.半径相等的圆内接正三角形、正方形、正六边形的边长之比为（）A．1B∶1C．3∶2∶1 D．1∶2∶3图47.如图4，点A、B、C、D为圆O的四等分点，动点P从圆心O出发，沿O－C－D－O的路线作匀速运动.设运动时间为t秒，∠APB的度数为y度，则如图5所示图象中表示y与t之间函数关系最恰当的是（）图5 图68.二次函数y=ax2+bx+c(a≠0)的图象如图6所示,则下列5个代数式：ab,ac,a－b+c,b2－4ac,2a+b中,值大于0的个数为（）A．5 B．4 C．3 D．2二、填空题（每题3分，共21分）9.(陕西)在平面直角坐标系中,将抛物线y=x2－x－6向上(下)或向左(右)平移m个单位,使平移后的抛物线恰好经过原点,则m的最小值为_______.10.已知点P(a,－3)关于原点的对称点为P1(－2,b),则a+b的值是_______.11.已知2x2－4x+c=0的一个根，则方程的另一个根是_______.12.如图7所示，某工厂的大门是抛物线形水泥建筑物，大门的地面宽度为8 m，两侧距地面3 m高处各有一壁灯，两壁灯间的水平距离为6 m，则厂门的高度约为_______.（精确到0.1 m）图713.一圆锥的侧面展开后是扇形,该扇形的圆心角为120°,半径为6 cm,则此圆锥的表面积为_______cm2.14.已知⊙O1和⊙O2的半径分别是一元二次方程x2－5x+6=0的两根,且O1O2=1,则⊙O1和⊙O2的位置关系是_______.15.如图8,Rt△ABC的边BC位于直线l上,AC∠ACB=90°,∠A= 30°;若Rt△ABC由现在的位置向右无滑动地翻转,当点A第3次落在直线l上时,点A所经过的路线的长为_______ (结果用含π的式子表示).图8三、解答题（16～18题每题6分，19～22题每题8分，23题11分，24题14分，共75分）16.已知抛物线经过两点A（1，0），B（0，－3），且对称轴是直线x=2，求此抛物线的解析式.17.解方程x2－4x+2=0.（用配方法）18.已知：△ABC的两边AB、AC的长是关于x的一元二次方程x2－(2k+1)x+k(k+1)=0的两个实数根,第三边BC的长为5.(1)k为何值时,△ABC是以BC为斜边的直角三角形?(2)k为何值时,△ABC是等腰三角形?并求△ABC的周长.19.现有形状、大小和颜色完全一样的三张卡片，上面分别标有数字“1”“2”“3”，第一次从这三张卡片中随机抽取一张，记下数字后放回；第二次再从这三张卡片中随机抽取一张并记下数字.请用列表或画树状图的方法表示出上述试验所有可能的结果，并求第二次抽取的数字大于第一次抽取的数字的概率.20.已知正方形ABCD和正方形AEFG有一个公共点A，点G、E分别在线段AD、AB上.（1）如图9（1），连接DF、BF，若将正方形AEFG绕点A按顺时针方向旋转，判断命题：“在旋转的过程中线段DF与BF的长始终相等.”是否正确，若正确请说明理由，若不正确请举反例说明；图9（2）若将正方形AEFG绕点A按顺时针方向旋转，连接DG，在旋转的过程中，你能否找到一条线段的长与线段DG的长始终相等.并以图9（2）为例说明理由.21.如图10，AC是⊙O的直径，P A切⊙O于点A，点B是⊙O上的一点，且∠BAC=30°，∠APB=60°.（1）求证：PB是⊙O的切线；图10（2）若⊙O的半径为2，求弦AB及P A，PB的长.22.“五一”期间，小明和同学一起到游乐场游玩.如图11为某游乐场大型摩天轮的示意图，其半径是20m，它匀速旋转一周需要24分钟，最底部点B离地面1m.小明乘坐的车厢经过点B时开始计时.（1）计时4分钟后小明离地面的高度是多少？图11 （2）在旋转一周的过程中，小明将有多长时间连续保持在离地面31m以上的空中？23.为了实现“畅通市区”的目标，市地铁一号线准备动工，市政府现对地铁一号线第15标段工程进行招标，施工距离全长为300米.经招标协定，该工程由甲、乙两公司承建，甲、乙两公司施工方案及报价分别为：（1）甲公司施工单价y1（万元/米）与施工长度x（米）之间的函数关系为y1=27.8－0.09x,(2)乙公司施工单价y2（万元/米）与施工长度x（米）之间的函数关系为y2=15.8－0.05x.(注:工程款=施工单价×施工长度)(1)如果不考虑其他因素,单独由甲公司施工,那么完成此项工程需工程款多少万元?(2)考虑到设备和技术等因素,甲公司必须邀请乙公司联合施工,共同完成该工程.因设备共享，两公司联合施工时市政府可节省工程款140万元（从工程款中扣除）.①如果设甲公司施工a米（0<a<300）,那么乙公司施工______米,其施工单价y2=_______万元/米,试求市政府共支付工程款P(万元)与a(米)之间的函数关系式;②如果市政府支付的工程款为2 900万元,那么应将多长的施工距离安排给乙公司施工?24.如图12，y关于x的二次函数y=－3m (x+m)(x－3m)图象的顶点为M,图象交x轴于A、B两点，交y轴正半轴于点D.以AB为直径作圆，圆心为点C，定点E的坐标为（－3，0），连接ED.（m>0）(1)写出A、B、D三点的坐标；。
广州市九年级化学下册第九单元《溶液》经典测试卷(含答案解析)
一、选择题1．下列有关溶液的叙述正确的是（）A．均一、稳定的液体一定是溶液B．一份溶液中可以含有多种溶质C．饱和溶液就是不能再溶解任何物质的溶液D．饱和溶液一定比不饱和溶液浓度大B解析：BA．溶液的特征是是均一、稳定、混合物，则均一、稳定的液体不一定是混合物，A错误；B．溶质是被溶解的物质，所以一份溶液中可以溶解多种物质，如碳酸饮料中就溶解多种物质，则一份溶液中可以含有多种溶质，B正确；C．在一定温度和一定量的溶剂里，不能溶解某种溶质的溶液，叫做这种溶质的饱和溶液，所以饱和溶液只是不能再溶解某种溶质，但可以溶解其他溶质，如氯化钠的饱和溶液可以溶解氯化钾等其他溶质，C错误；D．对于不同溶质的溶液，饱和溶液不一定比不饱和溶液的浓度大，而对于同种溶质的溶液，在同一温度下，饱和溶液比不饱和溶液的浓度大，D错误；故选：B。
2．下列说法正确的是（）A．利用洗洁精的乳化作用，可洗去餐具上的油污B．降低温度一定能使不饱和溶液变为饱和溶液C．水是由氢气和氧气组成D．电解水实验中，正极与负极产生的气体质量比约为1：2A解析：AA、洗洁精含有表面活性剂，可以使油污乳化，利用洗洁精的乳化作用，可洗去餐具上的油污，A正确。
B、降低温度不一定能使不饱和溶液变为饱和溶液，如氢氧化钙溶液降温变为不饱和溶液，B错误。
C、水是由氢元素和氧元素组成，C错误。
D、电解水实验中，正极与负极产生的气体体积比约为1：2，D错误。
故选： A。
3．常温下，对100mL氯化钠饱和溶液进图示实验。
下列分析错误的是A．实验1后，甲、乙中溶液的溶质质量分数相等B．实验2后，甲中溶液为氯化钠的不饱和溶液C．实验2后，甲、乙中溶液的溶质量分数相等D．实验2后，甲、乙中溶液所含溶质质量相等C解析：CA、溶液具有均一性，故实验1后，甲、乙中溶液的溶质质量分数相等，故A分析正确，不符合题意；B、实验2后，甲中溶液为氯化钠的不饱和溶液正确，因为加入了溶剂，故B分析正确，不符合题意；C、实验2是常温下向氯化钠的饱和溶液中继续加入5g氯化钠，温度不变，溶解度不变，故加入的氯化钠不能溶解，乙中溶液溶质质量分数不变，甲中溶液溶质质量分数变小，故C分析错误，符合题意；D、实验2后，甲、乙中溶液所含溶质质量相等正确，因为甲中加水，溶质不变，乙中的加溶质不再溶解，因此甲、乙中溶液所含溶质质量相等，故D分析正确，不符合题意。
第九单元 金属 单元综合测验九年级下册化学单元测试卷鲁教版
第九单元金属单元综合测验一、单选题1．某同学为了探究甲、乙、丙三种金属的活动性强弱，做了如下实验。
则三种金属的活动性顺序是()D．丙＞乙＞甲2．为验证Zn、Cu、Ag三种金属的活动性顺序，下列试剂可以选用的是（）A．ZnSO4溶液B．稀盐酸C．AgNO3溶液D．CuSO4溶液3．化学行业中把材料分为：金属材料、无机非金属材料、有机高分子材料等．金属材料在现实生活中有极为重要的作用．下列金属材料的运用与金属所具有的性质不一致的是（）A．制造白炽灯灯丝﹣﹣熔点高B．制造飞机﹣﹣坚硬而质轻C．制造保险丝﹣﹣硬度大D．制造装化工原料的容器﹣﹣耐腐蚀4．如图所示，烧杯中盛有质量相等、质量分数相等的稀盐酸，天平调平后，同时向其中左右盘分别加入等质量的锌片和铁片，则从反应开始到金属完全反应的过程中，天平指针指向的变化是（）A．向左偏B．向右偏C．先向左偏后向右偏D．先向右偏后向左偏5．医用热敷袋使用时要轻揉，袋内的反应可看作是铁粉、空气和水相互作用，产生氢氧化亚铁[Fe(OH)2]，最终转化为氢氧化铁[Fe(OH)3]。
下列说法不正确的是（）A ．热敷袋放出的热量是由化学反应产生的B ．该过程发生缓慢氧化反应C ．总反应为2Fe+O 2+3H 2O=2Fe(OH)3D ．上述含铁物质中铁元素的化合价有0、+2、+36．将一定量的锌粉投入到溶质为Mg （NO 3）2、Cu （NO 3）2、AgNO 3的溶液中，充分反应后过滤，滤液蓝色：向滤液中滴加稀盐酸，无明显现象。
下列说法正确的是（ ）A ．滤渣中一定有Ag 、CuB ．滤液中可能有AgNO 3C ．滤渣中一定有Ag ，可能有Cu ，没有ZnD ．滤液中含有两种溶质：Cu （NO 3）2、Mg （NO 3）27．下列观点正确的是( )A ．酸和碱一定含有氢元素B ．显碱性的物质一定属于碱C ．有单质生成的反应一定是置换反应D ．等质量的酸溶液和碱溶液混合后，溶液一定显中性8．芯片是电脑、智能家电的核心部件，它是以高纯度的单质硅（Si ）为材料制成的。
九年级化学下册第九单元《溶液》综合测试卷-人教版(含答案)
九年级化学下册第九单元《溶液》综合测试卷-人教版（含答案）一、选择题。
1、分别将下列物质加入到足量水中，能得到无色、澄清溶液的是（ ） A ．NaCl B ．CuSO 4 C ．CaCO 3D ．FeCl 32、小军同学需要快速配制一杯可口的白糖溶液，下列措施不能达到目的的是( )A ．用冰水溶解B ．用热水溶解C ．把白糖碾成粉末后溶解D ．溶解时用筷子搅拌3、化学知识在生产、生活中有着广泛的应用。
用下列物质除去油污时,利用乳化作用的是 (填字母)。
A.汽油B.洗洁精C.氢氧化钠溶液4、如图所示，一木块漂浮于X 中，向X 中缓缓加入（或通入）少量物质Y 后，最终木块上浮，则X 与Y 可能是（ ）（溶液的体积变化忽略不计）A ②④B ①③C ①②③D ②③④5、将热的硝酸钾不饱和溶液降温至如图所示的状态。
对该过程的描述错误的是( )序号 X Y ① 水食盐 ② 氢氧化钙溶液 二氧化碳 ③ 稀硫酸 镁粉 ④硫酸铜溶液铁粉A.降温过程中硝酸钾溶液逐渐达到饱和状态B.饱和的硝酸钾溶液继续降温,会析出硝酸钾晶体C.硝酸钾以晶体的形式析出的过程叫作结晶D.析出晶体后的硝酸钾溶液是不饱和溶液6、如图是甲、乙、丙三种物质的溶解度曲线,下列说法中正确的是()A.P点表示甲、丙两种物质的饱和溶液质量相等B.t1℃时,将乙物质的饱和溶液升温至t2℃,仍是饱和溶液C.t1℃时,甲物质的饱和溶液中溶质和溶剂的质量比为1∶4D.将三种物质的溶液从t2℃降温至t1℃,析出晶体最多的是甲物质的溶液7、以下说法正确的是（）Ａ．溶液一定是均一、无色、稳定的Ｂ．均一、稳定的液体一定是溶液Ｃ．溶液的溶质一定是固体Ｄ．溶液一定是混合物8、关于100克5%的氯化钠溶液，下列叙述正确的是（）A. 100克水中溶有5克氯化钠B. 5克氯化钠溶于95克水中C. 溶液中氯化钠与水的质量比为1：20D. 溶液中氯化钠与水的质量比为19：19、实验室用硝酸钾固体配制100.0 g溶质质量分数为3.0%的硝酸钾溶液，下列说法正确的是()A．用50 mL量筒量取水B．将固体放于托盘天平的右盘称取C．将固体直接投入量筒中溶解D．将配好的溶液装入贴有标签(如图SY5－3)的试剂瓶中，盖好瓶塞10、把少量下列物质分别放入足量水中，充分搅拌，可以得到无色溶液的是（）A 氯化铁B 氢氧化镁C 小苏打D 汽油11、有关溶液的说法正确的是（）A．具有均匀性、稳定性的液体一定是溶液B．配制溶液时，搅拌可以增大固体溶质的溶解度C．饱和溶液的浓度一定比不饱和溶液的浓度大D．融雪剂的原理是利用某些物质水溶液的凝固点低于0℃12、将金属钠投入水中会发生反应（2Na+2H2O═2NaOH+H2↑），现将4.6g钠投入95.4g水中充分反应后，溶液中溶质质量分数（）A. 等于4.6%B. 等于8.0%C. 大于8.0%D. 小于8.0%13、用溶质质量分数为98%的浓硫酸配制490 g溶质质量分数为20%的稀硫酸，下列说法不正确的是()A．实验中用到的玻璃仪器：量筒、胶头滴管、烧杯、玻璃棒B．配制该稀硫酸需要加水390 mLC．配制时需要溶质质量分数为98%的浓硫酸100 gD．配制的步骤是计算、称量、量取、溶解、装瓶贴标签二、填空题。
人教版九年级化学第九单元测试题(附答案)
人教版九年级化学第九单元测试题（附答案）学校:___________姓名：___________班级：___________考号：___________一、选择题．．．的是A．15℃时，a、b的溶解度均为20 gB．加水或升温均可使b的饱和溶液变为不饱和溶液C．将30℃时a的饱和溶液降温至15℃，溶质的质量分数不变D．分别向100 g水中加入20 g a和b，升温至30℃，所得溶液均为饱和溶液2.下列物质放入水中，能形成溶液的是A．牛奶 B．食盐 C．面粉 D．植物油3.4.A．实验中用到的玻璃仪器有烧杯、量筒、玻璃棒和胶头滴管B．用电子天平称量所需硝酸钾的质量3.0gC．用25mL量筒量取所需水的体积D．实验步骤是计算、称量和量取、溶解5.下列物质加入水中搅拌后，能形成溶液的是（）A．泥土 B．蜡烛 C．蔗糖 D．花生油6.浓硫酸和浓盐酸敞口放置在空气中一段时间后，溶液中（）A．溶质的质量分数都变小B．溶液的质量都增大C．溶质的质量分数都变大D．溶质的质量分数前者变大，后者变小7.下列实验现象描述正确的是（）A．镁条在空气中燃烧，发出耀眼的白光，生成白色固体B．硫在氧气中燃烧，产生淡蓝色火焰，生成有刺激性气味的气体C．细铁丝在空气中剧烈燃烧，火星四射，生成四氧化三铁D．硝酸铵晶体溶解于水，形成的溶液温度明显升高8.小明在做家庭小实验时，把下列物质分别放入适量水中并充分搅拌，其中不能得到溶液的是（）A．面粉 B．纯碱 C．食盐 D．白酒9.海水晒盐过程中，析出粗盐后剩余的溶液成为“苦卤”，关于苦卤的下列说法不正确的是（）A．苦卤是氯化钠的饱和溶液 B．苦卤中氯化钠的质量分数比海水中的大C．苦卤通电可以制的金属镁 D.苦卤也是一种重要的化工原料10.下列物质放入水中，能形成溶液的是（）A．牛奶 B．面粉 C．蔗糖 D．花生油11.下列物质中，属于溶液的是．冰水 D．糖水二、填空题6％的氯化钠溶液。
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第九单元 溶液
一、选择题：
1．将厨房中的下列物质分别放入水中，不能形成溶液的是（ ） A . 料酒 B . 食醋 C . 花生 D . 鸡精
2．下列说法正确的是 （ ） A ．水和冰块的共存物是悬浊液 B ．凡均一、稳定、透明、澄清液体一定是溶液 C ．一定温度下，一定量溶剂里不能再溶解某物质的溶液就是该物质的饱和溶液 D ．在泥水里，泥是溶质，水是溶剂
3．要从高锰酸钾加热完全分解后的剩余物中回收二氧化锰固体，有下列操作可选择：
①过滤；②烘干；③加水溶解；④水洗；⑤蒸发结晶。
其操作顺序正确的是 （ ） A ．①→②→③→④ B ．③→②→①→⑤ C ．③→①→④→② D ．③→①→⑤→④
4．在一定温度下，向不饱和的NaNO 3溶液中逐渐加入NaNO 3晶体，在此变化过程中，溶液里溶质质量分数（ω）与时间（t ）的关系正确的是 （ ）
5．现有M 、N 两物质在室温下的饱和溶液，升温后，M 溶液有晶体析出，而N 溶液还可以再溶解N
晶体，则能正确表示M 、N 两种物质溶解度曲线的是 6．在实验室进行下列实验操作时，不需用玻璃棒的是 （ ） A ．转移液体时的引流 B ．把试剂瓶中的液体倒入试管中 C ．蒸发食盐水制食盐 D ．用过滤的方法除去海水中难溶性的杂质
7．向右图试管里的水中加入下述某种物质后，原来U 型管内在同一水平上的红墨水，右边液面降低了些，左边液面上升了些，则加入的物质是 （ ） A 、硝酸铵 B 、生石灰 C 、活性炭 D 、烧碱
8．有W （g ）浓度为15%的硝酸钾溶液，若将其浓度变为30%，可以采用的
方法是 （ ） A 、蒸发掉溶剂的1/2 B 、加入3/20W （g ）的硝酸钾
C 、蒸发掉W/2（g ）溶剂
D 、加入5/14W （g ）硝酸钾
9．下列有关溶液的说法中，正确的是 （ ） A ．溶液都是澄清、透明、无色的 B ．溶液都是由一种溶质和一种溶剂混合而成的 C ．饱和溶液中溶质的质量分数一定比不饱和溶液中溶质的质量分数大 D ．降低饱和溶液的温度析出晶体后，溶液中溶质的质量分数一定减小
t
A
t
t
t
B
C
D
ω
ω
ω
0 温度/℃ 溶解度/g M 0 温度/℃ 溶解度/g M
N
0 温度/℃ 溶解度/g M N 0 温度/℃ 溶解度/g M N A . B . C . D .
ω
10．质量分数为30%的某溶液蒸发掉10g水后，溶液的质量分数变为40%，则原溶液的质量是（）
A．30g B．40g C．50g D．60g
11．25℃时向氯化钙饱和溶液中加入一定量的水后，下列有关该溶液的叙述正确的是（）
A．溶质的溶解度不变 B．溶质的质量分数不变 C．仍为饱和溶液 D．溶液的质量不变
12．下图中能表示过滤操作的实验装置是（）
13、右图是某厂生产的葡萄糖酸锌口服液的标签，每支口服液含葡萄糖
酸锌45.5 mg，标签“_____”上的数据是
A．3.25 B．6.5 C．13 D．14.3
14、配制一定溶质质量分数的氯化钠溶液的一些操作步骤见下图，正确的操作顺序是（）
A.④⑤①②③
B.①②③④⑤
C.③④①②⑤
D.②①④③⑤
二．填空题
15．（6分）双氧水（H2O2）既是工业上重要的绿色氧化剂，又是常用的医用消毒剂。
⑴小明配制了5%的双氧水600g，则600 g溶液中溶质为克，溶剂为克。
⑵小明倒出了300 g双氧水溶液进行消毒，则剩下的溶液中溶质的质量分数为。
16、（5分）粗盐提纯的实验中：
（1）除去粗盐中混有的少量不溶性杂质,下列操作正确的顺序是（填序号）：
①过滤②溶解③蒸发
（2）过滤后所得的滤液仍然浑浊，你认为原因可能是。
17．（5分）下图是A、B、C三种物质的溶解度曲线，据图回答：
(1)P点表示t1℃时物质的溶解度相等。
(2)溶解度随温度升高而减少的物质是。
(3)t2℃时，三种物质的溶解度由大到小的顺序是。
（4）t1℃时A的溶解度 t2℃时A的溶解度；（填“大于”、“小于”
或“等于”，下同）
（5）t2℃时，B的饱和溶液中溶质的质量分数 A的饱和溶液中溶质的质量分数。
18．（12分）写出下列溶液中溶质的化学式：
溶液溶质的化学式
（A）可用于金属表面除锈的稀硫酸溶液
××牌口服液
主要成分：葡萄糖酸锌
化学式：C12H22O14Zn
含锌量：每支口服液含锌
_______mg
（B）医疗消毒用的过氧化氢溶液（俗称双氧水）
（C）医疗消毒用的高锰酸钾溶液（俗称紫药水）
（D）医疗用的0.9﹪的氯化钠注射液(生理盐水)
（E）澄清的石灰水
（F）32℃的白酒
三、简答题
19.阅读下面的材料，回答下列问题：
自从非典型肺炎在我国部分地区出现以来，过氧乙酸作为高效消毒剂被广泛使用。
过氧乙酸在常温下是一种无色有刺激性气味的液体，易挥发，易溶于水和醋酸。
它对呼吸道黏膜有刺激性，高含量的过氧乙酸溶液对皮肤有腐蚀性。
一般商品过氧乙酸是40%的醋酸溶液，使用前通常先用蒸馏水等将其稀释，消毒时可用喷雾法消毒，也可将其配制成0.2%的水溶液洗手消毒。
过氧乙酸不稳定，易分解生成无毒物质，若用喷雾法消毒，过氧乙酸在半小时内就可完全分解。
（1）在过氧乙酸的质量分数为40%的醋酸溶液中，溶质是，溶剂是。
（2）分别指出过氧乙酸的一点物理性质和一点化学性质。
物理性质：；
化学性质：。
（3）100 g过氧乙酸的质量分数为0.2%的洗手液中含过氧乙酸g。
（4）不慎让高含量的过氧乙酸溶液沾到皮肤上，应做怎样的处理？。
（5）根据过氧乙酸的性质，用过氧乙酸喷雾消毒过的房间，人若要进去，应注意什么？
四、实验题
20．下图是配制50g质量分数为5% 的氯化钠溶液的操作过程示意图：
A B C D E
试回答：
（1）B操作中应称量氯化钠的质量是 g 。
放好砝码和游码后，向托盘上加氯化钠时，若指针偏向分度盘的左边，应进行的操作是。
（2）D操作应选用 mL 的量筒（从10 mL、100 mL中选择）；量水时，量筒必须平放，视线要跟量筒凹液面的处保持水平。
（3）E操作的作用是。
四．计算题：（本题2小题，共12分）
21、右图是病人输液时用的一瓶葡萄糖注射液标签，请根据标
签给出的数据计算该溶液中含水 g，溶液的密度约为 g/cm3。
22．某校课外兴趣小组对一批粗锌样品（含有杂质，杂质不溶于水，也不与酸反应）进行分析，甲、
请你认真分析数据，帮助他们回答下列问题(每组反应均充分)：
⑴组同学所取用的稀硫酸与粗锌样品恰好完全反应；
⑵计算粗锌样品中锌的质量分数；
⑶计算原硫酸溶液中溶质的质量分数；
⑷计算恰好完全反应的那组实验所得溶液中溶质的质量分数。
（烧杯质量为52.5g，计算结果
精确到0.1%）
16、（1）②①③（2）滤纸破了，或漏斗下端没有紧靠烧杯内壁，或液面高于滤纸边缘，或承接滤液的烧杯没洗干净
17、（1） A和C ，（2） A （3）CBA （4）大于（5）大于
18、H2SO4 H2O2 KmnO4 NaCl Ca(OH)2 C2H5OH2
19、（1）过氧乙酸醋酸（2）无色有刺激性气味的液体，易挥发，易溶于水不稳定，易分解（3）0.2 (4)用大量水冲洗 (5)消毒半小时后才能进房间
20、（1）2．5 减少适量药品至天平衡（2）100 最低（3）加速氯化钠溶解
21、237．5 1
22、（1）乙
解：H2为 167.5-167.1=0.4g
设有XgZn与YgH2SO4反应,生成zgZnSO4得.
Zn + H2SO4 ==== ZnSO4 + H2↑
65 98 161 2
X Y Z 0.4g
65:98:161:2=X:Y:Z:0.4g
解之得:X=13g Y=19.6g Z=32.2g
(2) 13g/15g×100%=86.7%
(3)19.6g/(152.5-52.5)g×100%=19.6%
(4)32.2g/(100+13-0.4)g×100%=28.6%
答：略。