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九年级起点考:2019-2020二中广雅英语试卷(含答案)

九年级起点考:2019-2020二中广雅英语试卷(含答案)
九年级起点考:2019-2020二中广雅英语试卷(含答案)

笔试部分(95分)

一、单项选择(每小题1分,共15分)

()26.—Where is the young man with glasses?

--Oh,I failed to_____that he had left.He just drank with a lady over there.

A.watch

B.note

C.memorize

D.mean

()27.—Where are you from?

--Kunming,a city whose name will______a picture of spring in many people’s mind.

A.create

B.discover

C.invent

D.find

()28.—Jack,can you play chess?

--Of course.I could do well when I was a child.________.

A.It’s none of your business

B.What a pity!

https://www.doczj.com/doc/975102617.html,e on!

D.It’s a piece of cake

()29.—How much do you know about Huawei Technologies?

--Oh,it is a famous company.It is widely________for its excellent creativity.

A.spread

B.swept

C.expected

D.carried

()30.—Can you give me a ticket to the football match?It’s my_______next time,OK?

--OK.That’s the deal.

A.offer

B.treat

C.deal

D.duty

()31.—What do you think of the little girl’s speech on Mother’s Day?

--Her words moved all the people_______.

A.normal

B.full

C.present there

D.typical

()32.—Whenever most people try to do something and fail,they always_______doing Something else.

--Oh,that’s the reason why they can’t succeed.

A.clear up

B.put up

C.give up

D.end up

()33.—Why don’t you sleep?It’s so late.

--My wife and I are sleepy,but my son is still______.

A.free

B.active

C.bored

D.icy

()34.—Honey,I want to buy a new dress for the party.

--It’s unwise to do so.The prices for the clothes_____by30%in less than a year.

A.added

B.increased

C.raised

D.created

()35.—What can we learn from this news?

--It reminds us that we must protect water and use it______.

A.slowly

B.clearly

C.wisely

D.kindly

()36.—What do you think of Guo Mingyi?

--He is such a kind and generous man that we all______him very much.

A.miss

B.accept

C.beat

D.admire

()37.—Let’s have a game of tennis,and the loser has to______the other to a lot dog.

--It’s a deal.

A.invite

B.treat

C.offer

D.serve

()38.—Mom,what should we do now?

--Oh,dear,we can_______the tablecloth and enjoy our food now.

https://www.doczj.com/doc/975102617.html,y out

B.put out

C.take out

D.set out

()39.—It’s dangerous to swim in this lake.

--Yes,you at right.The government has____people not to swim in it.

A.encouraged

B.led

C.admired

D.warned

()40.—The fire_____through the hotel very quickly but everyone was able to get out.

--How dangerous!

A.increase

B.create

C.develop

D.spread

二、完形填空(每小题1分,共15分)

Rec en t l y,a100-y e ar-o ld Jap a n es e wo m an becam e ver y po p u l ar.Sh e was fir st Centenarian(百岁老人的)to complete a1,500-meter freestyle swimming competition.The News41quickly in the world and excited many people.

The lady’s r name is Mieko Nagaoka.Ms.Nagaoka42a new world record for her age group at a recent Japan Masters Swimming Association event.She swam the race in1:15:54,It was a little faster then last world record,which made many people43.

To tell you the44,Ms Nagaoka was the only competitor in the100-104year old group.Her race was not a race of speed but of strong45,or not giving up.

Ms.Nagaoka isn’t a46to us.So far she has broken25records.But she began competing47she was much younger—at88.

Ms.Nagaoka48a knee in her80s,so she began swimming to help her body recover (康复).In her first international swimming competition,she didn’t49.Though she wanted to see if50competitors would catch up with her.

In2002.at a masters swim meet in New Zealand,Ms.Nagaoka took the bronze medal(铜牌)in the50-meter backstroke.In2004,she51three silver medals at an Italian swimming meet.

Masters swimming is a special class of competitive swimming to52health and friendship among participants.Swimmers compete within age groups of five years.

Ms Nagaoka says she is a serious swimmer and a serious competitor.And she53four Times a week for two hours at a time.

Many people54her very much.Some of the ask her55for long life,The lady says they are good genes,regular sleep,sushi and exercise.

()41.A.swam B.dived(潜水) C.spread D.jumped

()42.A.broke B.held. C.set D.made

()43.A.angry B.worried. C.upset D.crazy

()44.A.truth B.secret C.fact D.lie ()45.A.body B.will. C.health D.warmth ()46.A.patient. B.relative C.friend D.stranger ()47.A.when. B.before C.while D.until ()48.A.shot. B.hit C.hurt D.fell ()49.A.look up B.look back C.look forward D.look for ()50.A.the other B.other C.others D.another ()51.A.won B.beat C.created D.invented ()52.A.connect B.treat C.improve D.deal ()53.A.teaches B.trains. C.exercises D.learns ()54.A.raise B.fight. C.thank D.admire ()55.A.partners. B.secrets. C.traditions D.rules 三、阅读理解(每小题2分,共30分

A

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()56.We may probably read the material_________.

A.on a website

B.on a school notice board

C.in a textbook

D.in a job advertisement

()57.The lessons are for________.

A.kids under five years

B.some experts

C.students who are good ay arts

D.students who want to improve their subjects

()58.One can learn some information from the material above EXCET______.

A.the courses one can attend

B.the teachers’personal introductions

C.characteristics of the courses

D.starting the free trial

()59.What can we know about the material?

A.Science courses are provided by a high school

B.These courses are provided by a high school

C.One can have the classes whenever he is free

D.Anyone who takes these courses is sure to improve his degree.

()60.The material above is________probably.

A.an introduction of a kids’club

B.a letter to good learners

C.a report of a new teaching pattern

D.an ad for students

B

When I was a kid,my father work outside in the winter,removing snow,or perhaps chopping some wood.With his coat thrown aside,he was just wearing a shirt,a cap,and a pair of gloves.

It could be--20℃“Aren’t you cold,Dad?”I’d wondered.“No,”Dad would reply.“I’m

not cold---working too hard to be cold.”Many times I wondered whether my father was extremely tough man,or whether he was foolish.

One time when I was quite young,perhaps five or so,I went ice fishing with Dad.It was a bright, clear day—and bitterly cold.

After we’d been out on the ice for a little while,my feet started getting cold.“Daddy, my feet are cold.”I said.

“Yeah,it’s cold out here today,”he replied.“Tell you what,”he said.“Walk around.Make some circles in the snow.See how many different patterns you can make.That will get your feet warm.”

I was just a little girl at the time but I kept thinking,“How silly it is to walk around in the snow!Dad must be out of mind.”

But there’s no better way.So I had to make circles in the snow.Then I made squares. Pretty soon I found it so much to make patterns in the snow.Gradually,I did feel much better.

Now,I know,from my personal experience how my father was able to take his coat off and work outside in the winter wearing just a shirt,a cap and gloves.Because I do it,too.

“Aren’t you cold?”my husband asked one winter day.“No,”I replied.“I’m not cold—working too hard to be cold.”I hope my husband has decided I’m both tough and smart. But I guess quite a bit of the time he thinks I’m foolish.

If Dad could know that,I’m sure he will smile when I take my coat off while I’m working outside in the winter.

No one can resist the force of nature,but don’t hole back because human will and wisdom

are stronger.

()61.When the author was young,_______.

A.she believed that her father was quite strong and brave

B.he father often worked outside in the freezing weather

C.her family was too poor to buy enough clothes in winter

D.she always liked to play in the snow with her father

()62.The father said“I’m not cold---working too hard to be cold.”perhaps because_____.

A.he was willing to work hard for his family and didn’t feel cold.

B.he was so tough and strong that he was not afraid of coldness.

C.working with lots of efforts could make himself warm.

D.he wanted to comfort his family,and didn’t want them to worry about him.

()63.What did the author think of her father’s advice at first?

A.Popular and wise.

B.Stupid and useless.

C.Simple and effective.

D.Crazy and difficult

()64.What can we NOT learn from the passage?

A.The author didn’t understand her father’s explanation until that day.

B.The author’s husband knew her story and thought she tough and smart.

C.The author wrote the passage to remember her father.

D.When the author made circles in the snow,she felt warm and thought it interesting.

()65.The author mainly wants to tell us that_____.

A.force of nature is too great to control

B.one can learn a lot from his personal experience

C.we can do a lot to face the nature

D.the secret of happiness lies in enjoying what you do.

C

Tears clouded my eyes as I stood in our washing room,holding Brett's jeans and shirt full of burn holes.

Tired and defeated,I seated myself to the floor.The clothes were just one more thing Brett had destroyed.He often got almost everything in the house out of order.Many windows in our house needed repairing due to his breaking in to steal money when he chose to live on the street.Yet none of this could compare to the emotional hurt Brett had done to our once peaceful home.

Brett came to live with us when he was12years old.During the next few years I had dealt with Brett as patiently as possible,but inside I was shouting,"I don't want him in my house another day,Lord!"Having wiped my tears,I tried to treat him as before.

When Brett was nearly18,he landed again in Juvenile Hall(看管所).After that,my husband and I had to send Brett to a boarding school for helping troubled teens.

At the graduation ceremony,each graduate held a white rose to give to the person who had meant the most to him or her.Brett spoke lovingly to his parents and then spoke to me,"You

did so much.You were always there,no matter what happened.My mom and dad,I am their kid.But you,although troubled enough by me,always15me such love.And I want you to know I love you for it."

Surprised,I stood as Brett placed the white rose in my hand and hugged me tightly.At that moment,tears gathered in my eyes again,this time not for disappointment but for happiness.

Although I had struggled with silent anger toward my stepson(继子),Brett had seen only my actions.We may not always have positive feelings about certain people in our lives,but we can love them.

()66.The author couldn’t help shouting from her hear because______.

A.she was tired of the heavy housework

B.she just couldn’t stand Brett any more

C.her husband brought too much trouble to her

D.there were lots of quarrels between her and Brett

()67.The word“defeated”probably means“_______”.

A.shocked

B.frightened

C.beaten

D.moved

()68.We can infer from the passage that______.

A.Brett was once sent to prison for stealing money

B.Brett was selfish and loved nobody but himself

C.the author’s life used to be happy and peaceful before Brett moved in

D.the author only regarded Brett as her stepson and treated him poorly

()69.About the white rose Brett placed in the author’s hand,these are true EXCEPT_______.

A.it meant so much to her

B.it was a symbol of lobe and return

C.it drew the son and the mother closer

D.Brett found the author’s silent anger inside

()70.The best title of this passage might be“_____”.

A.Love Is Action

B.Blood Is Thicker than Water

C.It’s Never Too Late to Show Your Love

D.At Least You Have Me

四、词与短语选择填空(每小题1分,共10分)

leading to/mean/similar/lies/carry/leading into

71.I wonder if it’s________to he Water Festival of the Dai people in Yunnan Province.

72.They________people’s wishes to the families they love and miss.

73.He is_________and only thinks about himself.

74.But behind all these things_______the true meaning of Christmas.

75.Sometimes we even need to spend time______a request.

lifelong/active/born with/noted/come up/create/connected with

76.The Internet is closely________our daily life.Can you imagine life without it?

77.Most parents try to______good life for their–kids.

78.All of us want to meet some persons who will turn to be our______friends.

79.He carefully_______the time when they left the building.

80.The old grandma is over80,but she is still very______.

五、阅读填词(每小题1分,共10分)武汉教育资源网https://www.doczj.com/doc/975102617.html,严禁转载

As far as we know,Spring Festival is a precious time for families to get together.Though living or working far away,people will manage to r81home to enjoy the great family reunion.We have jiaozi,greet with friends and r82and send best wishes to each other.So it’s generally r83as the most important celebration of the year in China.

There are also a number of non-native holidays that are gaining popularity among the Chinese,such as Halloween,Christmas and Valentine’s Day.

In the past,these foreign holidays were only remembered and celebrated by those who worked for foreign companies or those who has studied or lived a84.But today many Chinese c85the holidays.

Valentine’s Day is mainly for young couples,while Halloween is most welcomed and celebrated by children.Christmas is becoming increasingly popular among the Chinese During the holiday,some shopping malls p86up Christmas tress.Many visitors write down their Christmas wishes and h87the notes on the trees.In just one or two days,he tress will be f88with all kinds of Christmas messages.For example,“I wish those who love me and whom I love happiness in the nest year.”“May God bless my parents’health and happiness”.“I hope my girlfriend will be admitted to a famous university.

Sociologists say the rising popularity of Christmas is d89to the cheerful and bright color of the holiday,because red is always the most popular holiday color in China.On Christmas,people may find that Santa Claus and t90red Chinese lanterns go well together.

81.r________82.r_________83.r__________84.a__________85.c_________

86.p________87.h________88.f__________89.d__________90.t__________

六、书面表达(15分)

假设你(Mr.Brown)是一位英语专家,一名叫Wang Hai的学生向你请教如何才能把英语学好,请你给他写封信介绍一些学英语的方法。字数在80词左右,信的开头己给出,不计入总词数.

要点如下:

1、认识到学英语的重要性; 2.课堂上认真听讲,做好笔记; 3.用心记单词;

4.多听磁带和多看英语电视节目,多用英语与同学对话,不要怕犯错误;

5.有问题要积极向老师请教;

6.可适当自由发挥。

参考词汇:realize意识到:take notes记笔记;by heart记牢

Dear Wang Hai,

I am glad to know that you like English very much.You want to know how to learn

English well.___________________________________________________________________

Yours

Mr.Brown

参考答案

26~30BADAB

31~35ADBBC

36~40DBADD

41~45DACBA

46~50DACBA

51~55ACBDB

56~60ADBCD

61~65

66~70BCDA

71.similar72.carry73.mean74.lies75.leading76.connected77.create78.lifelong 79.noted80.active

81return82.relatives83.regarded84.abroad85.celebrate

80.86.put87.hang88.filled89.due90.traditional

武汉二中广雅中学八年级上英语考

武汉二中广雅中学八年级(上)英语月考(四)二、选择填空(15分) ( )26.—I don’t know if am mother ________ tomorrow. --If she _______. I’ll meet her at the train station. A. will come; comes. B. comes; will come C. will come; will come. D. comes; comes ( )27.—What should we do when we have some useful material? --You can download and ________ it in your personal computer files. A. share B. copy C. save D. spare ( )28.—Who will _______ some wonderful games for Lily’s birthday party? --Her twin sister Lucy will. A. organize B. remember C. spend D. make ( )29.—Do you think Mr. Black is popular in the company? --Not really, sometimes his actions are out of ______ with his word. A. mind B. order C. question D. step ( )30.The roof of the house needs repairing. It’s raining now. You’d better get something to _______ the rain drops. A. catch B. cover C. carry D. control ( )31.He often makes ________ mistakes, because he doesn’t read ________. A. careful; carefully B. careless; careful C. careless; carefully. D. careful; carelessly ( )32.—Why did the boy fail the test again? --Just because he didn’t take his coach’s ______. A. thought B. advice C. effort D. courage ( )33. If you have problems, you shouldn’t ______ them to yourself.

初三化学试卷分析

初四化学试卷分析 一、试题特点 1.本次试卷的命题是以义务教育化学课程标准及人教版义务教育课程标准教科书《化学》的有关内容为依据,重点考查学生化学基础知识和基本技能、基本方法和情感态度价值观,以及对化学、技术和社会之间相互关系的理解,运用化学知识解决简单实际问题的能力等。 2.试题有利于引导教师改变教学方式,促进学生生动、活泼、主动地学习,坚持以学生的发展为本,注重激发学生学习化学的兴趣,提高学生的科学探究能力和实践能力,培养学生积极的情感态度与价值观。 3.命题采用主题设计,突出“化学-技术-社会”的教育思想。“生活-化学-社会”的基本思路贯穿整份试卷。这种以主题形式与生产和生活实际相联系的题目占总分值约75%。这些题目取材于生活实际,聚焦社会热点,立意起点高,知识落点低。情景设计新颖、真实,能够吸引学生主动参与并激发学生答题兴趣。既考查学生基础知识的理解运用能力,又渗透了思想教育,强调学习化学要理论联系实际,学以致用,避免死记硬背。 4.试卷在重视考查基础知识的同时,设计了科学探究综合题(第五大题),加强对学生科学素养(知识与技能、过程与方法、情感态度价值观)的考查,引导学生改变学习方式。学生在解答这类开放性问题时,思维应该是发散的,富有创造性和个性的,同时也会明白许

多科学道理,并受到潜移默化的教育。这类试题考查的不再是课程中单一的知识点,而是学生能否灵活运用所学的化学知识,分析解决实际问题的能力,同时也培养了学生的创造性思维能力。这些做法体现了初中化学课程新理念,对素质教育的推进具有导向作用。 5.体现学科渗透,融合科学精神和人文思想,也是本试题的一个特点。生活和生产中的问题大多数为学科间渗透的综合,打破学科界限,培养和提高学生解决实际问题的能力是社会、学科和学生自身发展的需要。这些综合性试题,注意学科间知识的相互渗透,体现了要培养学生综合运用各科知识分析解决实际问题能力的导向。 二、基本情况分析 及格人数优秀人数 一班32 8 二班30 11 三班31 15 四班28 11 五班27 13 六班32 16 三、错题分析 第6题:学生对分子、原子、元素的概念不清。 第10题:学生对反应时间和总质量关系的图象未弄清楚。 第12题:本题的条件多了一个学生就想不全了。 第14题: 少数学生将题意看错而误选。

九年级起点考:2018-2019七一华源语文试卷(答案另附)

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(完整版)2018年九年级化学模拟考试试卷

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湖北武汉二中广雅中学2017~2018学年度上学期九年级起点考语文试题(word版有答案)

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2018年九年级化学期末试题人教版带答案

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人教版上学期九年级英语起点考试题(无听力word版有答案)

笔试部分(95分) I. 单项选择(15x1’) ( )26.—How is everything going in school. dear? --___________. A. I’m all right , thanks B. Not too bad, I guess C. Not at all D. That’s all right, thank you ( )27.--What does Tim like drawing? - -Cars. He often ______ pictures at home. A. draws B. is drawing C. was drawn D. drew ( )28.—Have you seen the movie? –No. I ________ TV yesterday. A. watch B. watched C. would watch D. have watched ( )29.—IS Jim in the office? –No, he ___________to the lecture hall. A. goes B. would go C. has gone D. had gone ( )30.—Which would you like, green tea or coffee? --______, thanks .I’d like a glass of water. A. Both B. Either C. Neither D. None ( )31.—I had a pleasant holiday on the beach. -- _______. A. Oh, that’s very nice of you B. Have a nice day C. Congratulations D. I’m glad to hear that ( )32.--________. There is still some time for the train. --NO, I’m really anxious A. Take it easy B. Take your time C. Don’t mention it D. I’m afraid not ( )33.—Chinese Women’s V olleyball Team beat Serbia at the Rio Olympics. --Yeah. I watched the game and my spirits ______ at the news. A. rose B. turned C. raised D. calmed ( )34.—It will be a long time before my wife finishes dressing herself up. --Yeah. We have to be ______ with ladies. A. strict B. friendly C. patient D. pleased ( )35.—How did you know he got angry? --I noticed his ______ on his face. It’s terrible. A. cry B. expression C. hunger D. smile ( )36.—How large the hall is! –Yes, it _______ an area of one thousand square meters. A. keeps B. covers C. includes D. stands ( )37.—The thief should be punished. --Quite right. He was ______ for 5 years for stealing. A. hidden away B. hurried away C. washed away D. put away ( )38.—The houses are too old for people to live in. They should be ________ as soon as Possible. A. thrown down B. pulled down C. moved down D. shot down ( )39.—The bell is ringing. Who is it? --It ______ be John. He has gone to London. A. can’t B. must C. could D. may

2018-2019学年下学期湖北省武汉二中广雅中学七年级(下)数学训练卷一 解析版

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A.125°B.120°C.115°D.110° 8.下列命题中,假命题的个数是() ①在同一平面内,过一点有且只有一条直线与已知直线平行 ②两条直线被第三条直线所截,同位角相等 ③直线外一点与直线上所有点的连线中,垂线段最短 ④图形在平移过程中,对应线段平行且相等 A.1个B.2个C.3个D.4个 9.把图中的一个三角形先横向平移x格,再纵向平移y格,可以与另一个三角形拼合成一些不同形状的四边形.那么移动的总格数(x+y)的值() A.是一个确定的值B.有两个不同的值 C.有三个不同的值D.有三个以上不同的值 10.如图,CD∥AB,BC平分∠ACD,CF平分∠ACG, ∠BAC=40°,∠1=∠2,则下列结论: ①CB⊥CF;②∠1=70°;③∠ACE=2∠4;④∠3=2∠4, 其中正确的是() A.①②③B.①②④C.②③④D.①②③④二.填空题(共6小题) 11.平方根等于它本身的数是,算术平方根等于它本身的数是.

武汉二中广雅中学2020-2021学年度九上数学质量评估(一)

武汉市第二初级中学&武汉二中广雅中学 九年级(上)数学质量评估(一) (试卷满分:120分 考试时间:120分钟 命题人:金鑫 刘颖丹) 一、选择题(共10小题,每小题3分,共30分) 1.式子2-x 在实数范围内有意义,则x 的取值范围是( ) A .0≥x B .2≤x C .2x ≥- D .2≥x 2.将一元二次方程x x 58142=+化为一般形式后,常数项为81,二 次项系数和一次项系数分别为( ) A .4,5 B .4,-5 C .4,81 D .x x 542 -, 3.若3=x 是关于x 的一元二次方程230x mx --=的一个解,则m 的值是( ) A .2 B .1 C .0 D .-2 4.如果函数72)2(2 2-+-=-x x m y m 是二次函数,则m 的取值范围是( ) A .2±=m B . 2=m C . 2-=m D .m 为全体实数 5.一元二次方程0522=+-x x 的根的情况是( ) A .有两个相等的实数根 B .没有实数根 C .有两个不相等的实数根 D .无法确定 6.用配方法解方程0182 =+-x x ,下列变形正确的是 ( ) A .(x -4)2=15 B .1742 =+)(x C .6382 =-)(x D . 5682 =+)(x 7.新冠病毒主要是经呼吸道飞沫传播的,在无防护下传播速度很快,已知有1个人患了新冠,经过两轮传染后共有625个人患了新冠,每轮传染中平均一个人传染m 人,则m 的值为( ) A .24 B .25 C .26 D .27 8.关于x 的一元 次方程0242 =+-n x x 无实数根,则一次函数n x n y +=)(-2的图象不经过( ) A . 第一象限 B . 第二象限 C .第三象限 D .第四象限 9.如图,正方形ABCD 和正方形CEFG ,点G 在CD 上,AB =5,CE =2,T 为AF 的中点,则CT 的长是( ) A . 2 7 B . 4 C . 29 D . 2 58 10.设,21111221++ =a ,31211222++=a ,41311223++=a ……,1n 11122n ) (+++=n a 其中n 为正整数,则2020321...a a a a ++++的值是( ) A .2020 2019 2020 B . 2021 2020 2020 C .202120202021 D .2022 2021 2021 二、填空题(共6小箱,每小题3分,共18分) 11.计算= 4 , =- 31 ,=22-)( . 12.为锻炼身体,增强抵抗力.某学习小组6名同学一周锻炼身体的时间(单位:小时),分别为4,3,2,5,5,6这组数据的众数是________

2017-2018年九年级化学试题期末试题(人教版)带答案

2017-2018学年度第一学期期末调研考试 九年级化学试题(人教版) 注: 1.本卷满分100分,时间90分钟。 2.答题前请先填写学校、班级、姓名、学号。 3.请将答案写在答题纸上,写在试卷上无效,考试结束后只交答题纸 可能用到的相对原子质量:H:1 C:12 O:16 S:32 Cl:35.5 Zn:65 一、让我想想,我能选对!(共20个小题,每小题2分,共40分。每小题只有一个正确答案,请将正确答 案填写在答题纸的表格内) 1.下列变化中发生了化学变化的是 A.石蜡熔化B.瓷碗破碎C.火柴燃烧D.胆矾研碎 2.下列事实描述中,属于化学性质的是 A.铜呈紫红色B.以粮食为原料能酿酒 C.水变成水蒸气D.二氧化碳密度比空气大 3.正确的实验操作对实验结果、人身安全都非常重要。下列实验操作正确的是 A B C D 4.下列方法中,能鉴别空气和氧气两瓶气体的是 A.闻气味B.将集气瓶倒扣在水中观察 C.观察颜色D.用带火星的木条伸入到集气瓶中 5.下列物质中,属于纯净物的是 A.矿泉水B.氧气C.空气D.碘酒 6.下列物质中属于氧化物的是 A.MnO2 B.H2 SO4 C.NaOH D.O2 7.2014年“六·五”世界环境日中国的主题为“向污染宣战”。下列做法不符合这一主题的是A.用风能与太阳能发电替代燃煤发电 B.提倡步行、骑自行车等“低碳”出行方式 C.施用大量的化肥和农药以提高农作物产量 D.淘汰污染严重的黄标车和污染严重的老式锅炉 8.下列物质在充满氧气的集气瓶中燃烧时,能产生明亮的蓝紫色火焰的物质是 A. 硫粉 B. 铁丝 C. 木炭 D. 红磷 9.下列对于“干冰升华”的解释正确的是 A.分子不停地运动B.分子体积急剧增大 C.分子间间隔变大D.分子本身不发生变化

湖北省武汉市第二初级中学武汉二中广雅中学2017-2018学年八年级下期中数学试题(无答案)

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6.如图所示,一个圆柱体高8cm,底面直径 π 12cm,一只蚂蚁从点A 爬到点B 处吃食,要爬行的最短路程是( ) A.12cm B.10cm C.20cm D.(812+π )cm 7.菱形周长为125cm,它的一条对角线长6cm,则菱形的面积为( )cm 2 A.48 B.12 C.24 D.36 8.如图,Rt △ABC 中,∠BAC=90°AB=6,BC=10,AD 、AE 分别是其角平分线和中线,过点B 作BG ⊥AD 于G,交AC 于F,连接EG,则线段EG 的长为( ) A.21 B.1 C.2 3 D.2 9.如图,Rt △ABC 中,∠ACB=90°,∠ABC=30°,分别以△ABC 的三条边为直径作半圆,则图中阴影部分的面积S 1、S2、S 之间的关系成立的是( ) A.S 1+S 2+S 3=π B.S 1+S 2=S 3 C.S 1+S 2>S 3 D.S 1+S 2<S 3 10.如图,正方形ABCD 中,M 为AB 上一点,DM 交AC 于G,DM 的垂直平分线PQ 交AC 于Q,交正方形的边于E 、F,连接MQ,则下列结论:①∠AQM=∠ADM ;②BM=2CQ ;③AQ AM AB +为定值;④222GQ QC AG =+;⑤PQ=PE+QF,其中正确的结论有( ) 第9题 第10题 A.2 B.3 C.4 D.5 二、填空题(每小题3分,共18分) 11.计算()==÷=22-1______65321_____49;;__________.

九年级化学图像题 金属及酸碱盐反应试题(有答案和解析)

九年级化学图像题金属及酸碱盐反应试题(有答案和解析) 一、化学图像题金属及酸碱盐反应的图像 1.用等质量相同表面积的镁条、等体积不同浓度的稀盐酸在一定条件下反应,实验结果如图所示。下列结论正确的是 ①镁与盐酸的反应是放热反应 ②b曲线对应的盐酸浓度较大 ③盐酸浓度越大,反应速率越快 ④单位时间内放出热量越多,反应速率越快 ⑤装置内氢气的质量先增大,后减小 ⑥两种情况最终产生氢气的质量可能相同 A.①②③④B.①③④⑤C.①③④⑥D.③④⑤⑥ 【答案】C 【解析】 【分析】 【详解】 ①镁与盐酸反应生成氯化镁和氢气,该反应是放热反应,符合题意; ②盐酸的浓度越大,反应速率越快,压强增大越明显,故a曲线对应的盐酸浓度较大,不符合题意; ③盐酸浓度越大,反应速率越快,说法正确,符合题意; ④镁与盐酸反应放热,单位时间内放出热量越多,说明反应速率越快,符合题意; ⑤镁与盐酸反应生成氢气,随着反应的进行,氢气质量逐渐增加,待完全反应后,氢气的质量不再变化,故装置内氢气的质量先增大,后不变,不符合题意; ⑥如盐酸过量,镁条的质量相等,两种情况最终产生氢气的质量相同,符合题意。 正确的是:①③④⑥;故选C。 2.常温下,向烧杯内的甲物质加入乙物质至过量,若x轴表示加入乙物质的质量,则下列

选项于图像不相符的是() 选项甲物质乙物质Y轴的意义 A稀盐酸和硫酸钠氢氧化钡生成沉淀的质量 B水硝酸钾溶质的质量分数 C二氧化锰过氧化氢溶液氧气的质量 D铝稀硫酸溶液中铝元素的质量 A.A B.B C.C D.D 【答案】C 【解析】 【分析】 常温下,向烧杯内的甲物质加入乙物质至过量,若x轴表示加入乙物质的质量,曲线从0点出发,逐渐增大,增大到一定程度时不再增大。 【详解】 A、向稀盐酸和硫酸钠混合液加氢氧化钡溶液,硫酸钠与氢氧化钡反应生成硫酸钡沉淀,且该沉淀不溶于盐酸,所以反应开始时就有沉淀产生,当硫酸钠反应完时,沉淀的量不再增加,与曲线相符,不符合题意; B、往水中溶解硝酸钾,溶质质量分数从0不断增大,当溶液达到饱和时,溶质质量分数不再增大,与曲线相符,不符合题意; C、向二氧化锰中滴加过氧化氢溶液,反应开始时就产生氧气,且氧气不断增加,因为二氧化锰在该反应中作催化剂,反应中质量和化学性质不变,因此,过氧化氢不断滴加,氧气就不断增大,氧气没有最大量,与曲线不相符,符合题意; D、向铝中滴加稀硫酸,铝与硫酸反应生成硫酸铝,溶液中的铝元素的质量不断增加,当铝完全反应后,溶液中铝元素的质量不再增加,与曲线相符,不符合题意。故选C。【点睛】 判断反应生成物与曲线的关系时,重点找出生成物的起点和终点是否与曲线相符。 3.下列图像正确反映实验变化关系的是()

湖北武汉华师一附中光谷分校2018-2019学年九年级9月起点考英语试卷(word版有答案)

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