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2019年辽宁省沈阳市沈河区九年级一模试题及答案

2019年辽宁省沈阳市沈河区九年级一模试题及答案
2019年辽宁省沈阳市沈河区九年级一模试题及答案

2019年沈河区九年级教学质量监测(一)

英语试卷

(考试时间:100分钟满分:100分)

第一部分选择题(三大题;共38分)

一、单项选择(共10小题,每小题0.5分,满分5分)

1.—I want to find out_______________.

—In two weeks.

A.where I can see a movie

B.how often I can see a movie

C.what the new movie is like

D.how soon the movie will be on

2.—I’m afraid of the meeting has begun.

—Don’t worry.It_____________until the bell__________.

A.will begin;rings

B.doesn’t begin;will ring

C.won’t begin;will ring

D.won’t begin;rings

3.It is______________known that more and more foreigners are learning Chinese now.

A.politely

B.loudly

C.widely

D.possibly

4.The company has set up a team to___________the problem.

A.look up

B.look into

C.look on

D.look down

5.—Tom,let me help you with this math problem.

—____________.I can manage it myself.

A.I’d love to

B.No,thanks

C.Not at all

D.Good idea

6.I’ve already___________five pounds,I really need to do more exercise to lose weight.

A.put off

B.put down

C.put up

D.put on

7.—Can you read the article in French?

—I know little French,_____________I have been to France.

A.because

B.but

C.though

D.so

8.The electricity is cut off,we could do nothing__________sleep.

A.but

B.except for

C.besides

D.except that

9.His uncle_____________for more than9years.

A.has come here

B.has started to work

C.has left the university

D.has lived there

10.The TV sets made in China are much better than_____________in Japan.

A.that

B.those

C.them

D.it

二、完形填空(共15题,每小题1分,满分15分)

A jobless man wanted very much to have the position of“office boy”at Microsoft.The HR manager interviewed him and then watched him cleaning the floor as a11.“You have passed the test,”he said.“Give me your e-mail address and I’ll send you the form to12and the13when you may start.”The man replied,“But I don’t have a14,neither an e-mail.”“I’m sorry,”said the HR manager.“If you don’t have an e-mail,that means you don't exist.And we can’t15persons who don’t exist.”

The man left with no16at all.He didn’t know what to do with only$10in his pocket.Once that was17,he wouldn’t have any money to buy even food.Then he went to the supermarket and bought10 kilos of tomatoes.He18the tomatoes from door to door.In less than two hours,he had20dollars.

He19the operation three times,and started to go early every day,and returned home late. Shortly,he20a cart,then a truck,then he had his own fleet of delivery vehicles(运货车队).Five years later,the man was one of the biggest21retailers(零售商)in the US.He started to plan his family’s future.He called an insurance(保险)broker,a man who sells insurance.At the end of the22,the broker asked him for his e-mail address.The man replied,“I don’t have an e-mail!”

Hearing that,the broker felt very23.“You don’t have an email and yet have succeeded in becoming so24.Can you imagine what you could have been if you had an email?”he said aloud.The man thought for a while and replied,“An office25at Microsoft!”

If you just lost your job or just failed an interview,don’t worry,think of the positive,good days are on the way and something better will happen to you.

11. A.job B.hand C.chance D.test

12. A.check out B.put up C.fill in D.write down

13. https://www.sodocs.net/doc/0215950876.html, B.date C.address D.ticket

14. https://www.sodocs.net/doc/0215950876.html,puter B.screen C.website D.letter

15. A.believe B.pay C.accept D.refuse

16. A.dream B.happy C.wish D.hope

17. A.exchanged B.spent C.wasted D.lost

18. A.divided B.showed C.kept D.sold

19. A.repeated B.reminded C.tried D.counted

20. A.borrowed B.repaired C.received D.bought

21. A.truck B.insurance C.food D.door

22. A.introduction B.conversation C.business D.story

23. A.worried B.satisfied C.upset D.surprised

24. A.clever B.healthy C.rich D.confident

25. A.boy B.secretary C.cleaner D.head

三、阅读理解(共12小题,每小题1.5分,满分18分)

阅读下列短文,然后根据其内容从A、B、C、D中选出最佳选项。

A

Dear Disney,

Last weekend,the four members of my family spent an enjoyable holiday at the Magic Kingdom-Disneyland. And one event made our visit seem truly magical.

We got to the front of the line at Space Mountain,only to find out that our little daughter Gloria couldn't take her ice-cream on the ride We were so excited that we all forgot ice-cream was not allowed on the ride.

Gloria broke into tears and we all had no idea what to do.Then Murphy,one of the staff(员工) members,came over.She bent down and told Gloria that she would hold the ice-cream for her and give it to her when she finished the ride.Gloria said,“Promise?”Then she gave Murphy her ice-cream,and she completely enjoyed the ride.

Sure enough,as we walked out the exit,there was Gloria’s new friend with“her”ice-cream.

Now you and I both know what happened,because we know that an ice cream won't last twenty minutes on a summer afternoon in Florida.Murphy knew what time we would get off the ride;she went to the nearest shop and bought brand-new ice-cream thirty seconds before we walked out the exit.Gloria said,“Thank you,”but I’m sure she thought it was the same ice-cream.

We know that someone tried hard to make our visit special.Thanks so much for going above and beyond!

Your fan,

Carmen Rivera

26.The family's visit to the Magic Kingdom was

A.helpful

B.awful

C.frightening

D.amazing

27.Before the ride,Gloria cried because

A.She couldn't find her parents in the line

B.She was too little to take the ride

C.She couldn't take her ice-cream on the ride

D.She had to wait for twenty minutes

28.In order to keep the promise,Murphy

A.took Gloria to the nearest shop

B.asked her new friend to help Gloria

C.helped Gloria get off the ride

D.bought a new ice-cream for Gloria

29.The underlined word"someone"in the last paragraph refers to(指的是)

A.Gloria

B.Murphy

C.Disney

D.Carmen

B

Have you ever wanted a friend who can solve problems with magic tricks?Well,a round-headed blue robotic cat is the friend you are looking for.

Doraemon(哆啦A梦)is a character created in the1970s by Japanese cartoonist Fujiko F.Fujio.

Starting from Dec1,on the birthday of Fujio,Doraemon is returning in a new comic series.This is the first new Doraemon since it ended eight years ago.

In the story,Doraemon comes from the22nd century.He becomes friends with a fourth-grade boy called Nobita(大雄)who is like you and your classmates.He has arguments with his friends,is blamed by his mother,and gets a headache from his homework.But luckily,Doraemon is always there to help.

If you ask what makes the Doraemon series so popular,the simple answer may lie in Doraemon's amazing pocket that's full of cool gadgets(小玩意儿).Anywhere Doraemon helps Nobita go anywhere to make his dreams come true.Memory Bread,once eaten,helps him remember textbooks quickly.Xia Xue,14,from Yangzhou,Jiangsu province,wished she could have one,too."With Memory Bread,I can press it on my textbook and eat,"Xia said."This way,exams would be a piece of cake!"Doraemon is also like a real person.He has a nice personality.He teaches Nobita courage and friendship.He even has a favourite food.But sometimes,he is lazy and tells small lies.

But more than that,Doraemon gives a message:the future can be likable,the present is redeemable(可补救的),and you can be happy even if you're blue,Time magazine once commented.This encourages children that no matter what ups and downs they have,they can always get through them.

30.How many cool gadgets are mentioned in paragraph5?

A.1

B.2

C.3

D.4

31.We can infer from(推断)the story that____________________

A.Doraemon is not always honest

B.Nobita is good at studying

C.Doraemon teaches Nobita some learning methods

D.Nobita easily gets sad.

32.The underlined word"blue"in the last paragraph mean"?

A.angry

B.confused

C.bored

D.sad

33.What can kids learn from Doraemon?

A.Be brave no matter what happens.

B.With magic,you can do whatever you like

C.It is good to cry if you are not happy

D.Treasure your school days.

C

Trip1One Week In The Mountains

Bring your strong shoes and warm clothes for this walk in a beautiful area of the Green Mountains.You may go hiking or have a try of rock climbing.This is also a protection area for wild animals.You can find many kinds of animals living in this area.

Time:July7----July14Tel:8463-9818

Adult:$10Child:$5.5

Trip2Three Days In The Country

There are many beautiful gardens.Take your camera and enjoy the wonderful sight in Hunter Valley.It is a good place for fishing and horse riding.You can also find different kinds of flowers here.This is also a great walk for bird-lovers.

Time:July20---July22Tel:8398-6432

Adult:$50Child:$25

Trip3Flashlight(手电筒)Adventure(冒险)

Put on your warm clothes,bring a flashlight,and come for a night walk along the Dungog Valley.It is a trip full of adventure.A guide will lead the tour.Many of the plants you will see on this trip can only be seen at night. Time:July16---July18Tel:8387-5629

Adult:$30Not for children

Trip4Five Days By The Sea

Wear your sun hat and enjoy wonderful sunshine all the time from morning to evening.Our hotel is next to the sea.We have our own boats,too.You can swim in the sea or in the swimming pool.Every day our boat will take you to different places for swimming.

Time:July13---July17Tel:8754-9679

34.Sam wants to stay in Hunter Valley with his wife,his five-year-old daughter and his seven-year-old son.How much will it cost?

A.$25

B.$50

C.$100

D.$125

35.David loves sports.He will take his holiday from July7to July15.What activity will he probably take part in?

A.Hiking in the mountains.

B.Watching plants at night.

C.Fishing in the country.

D.Swimming in the sea.

36.Lucy wants to know something about the life of plants at night.Which trip will she choose?

A.Trip1

B.Trip2

C.Trip3

D.Trip4

37.Which of the following is NOT mentioned according to the four advertisements?

第二部分非选择题(四大题;共62分)

四、回答问题(共5小题,每小题2分;满分10分)

Hi,I am Paul.I have some experiences about the importance of the first-aid training.One day,I was having lunch in the park with my grandparents,my sister and her one-year-old daughter.Rose was sitting on my sister's knees and eating.My sister was watching her carefully because her teeth just started to grow.Then my sister's phone started to ring.She left Rose with my grandparents so she could focus on the call.I did not think anything about this and started to play a game on my phone

Suddenly,I heard Rose coughing.I looked up and found that Rose was breathing difficultly.My grandparents were standing up and looking worried.

“We just gave her one nut,”my grandfather said.

Immediately I ran to get my sister.She has had first-aid(急救的)training and knew just what to do.She used the Heimlich manoeuvre(海姆立克氏急救法),Which pushed the nut out of Rose's throat so she could breathe again.Accidents happen quickly and can cost a loved one's life if you do not know how to respond(做出反应).After that scary day,I decided to take first-aid classes.My training has since helped me save a life too One morning,my father was up a ladder(梯子)painting our house.I heard a loud noise and rushed outside.He was lying on the ground.He must have hit his head because his eyes were closed.I was scared but knew what to do I moved his body into the recovery position(复苏体位),put a blanket over him and called an ambulance.If you get knocked out,your brain cannot help you breathe or stay warm The fall could have caused some bleeding(失血)so the recovery position helps the throat clear.The ambulance men said I had done the right thing

38.When did Paul start to play a game on his phone?

39.What will happen if you don't know how to respond to accidents?

40.How did Paul's sister save Rose's life?

41.Why did Paul make his father keep the recovery position?

42.According to the passage,what advice do you think Paul will give us?

五、阅读填空(共7小题,每小题1分,满分7分)

阅读短文,然后用短文括号中所给词的适当形式填空

Today,43____________(weigh)problems,heart disease and many forms of cancer(癌症)are becoming more common because many people have44___________(health)diets.Everywhere,people are thinking about how they can eat better.There are many different answers to this question.Some people think that sugar is bad for your health.Others say that having food with sugar is the45____________(good)way to give your body energy.Some people eat meat while others do not.It is hard46_____________(say)who is right or who is wrong.

However,most47_____________(doctor)ideas are the same:You need a balanced diet to keep fit.In fact,a balanced diet means48____________(eat)many different kinds of food.You can also have a 49_____________(medicine)examination to decide what to eat and what not to eat.

六、综合阅读(共10小题,每小题2分,满分20分)

阅读短文,然后按要求完成第50-59小题

A

"The Ranson of Red Chief"is one of O.Henry's(A)best-loved stories.

In the story,two men named Bill and Sam decide to become rich by kidnapping(绑架)a young boy named Johnny Dorset.Bill and Sam drive over to Johnny's house and find him in the street playing.They carry him away to a cave in the mountains.Then they send his father Ebenezer a letter asking for$1,500if he wants his son to live.However,(B)Johnny is a very bad boy and he often brings trouble to the men.The men try to send Johnny home,but he refuses to go(C)____________he enjoys being with them.Then Ebenezer replies to their letter,saying that he will only take Johnny back if Bill and Sam pay him$250,Johnny is so much trouble to the men that they (D)______________to pay the money.They send Johnny home and pay his father$250.However,even then Johnny(E)宁愿和他们待在一起and so Bill and Sam have to(F)run away as fast as possible to get away from him.

50.写出文中划线部分(A)和(F)的同义词或近义词:______________;________________

51.将文中划线部分(B)改写为:Johnny is__________________________bad boy.

52.在文中(C)和(D)的空白处填入适当的单词:______________;______________

53.将划线部分(E)译为英语:______________________________________

54.本文的中心句是:________________________________________

B

Wang Damin is a fisherman.Although he is over65,he is very(A)fit and still enjoys working.

Damin uses cormorants to catch fish.Cormorants are large black birds.They are good at catching fish because they can(B)___________well.They can dive down and stay under the water for up to two minutes.

Damin usually(C)starts in the late afternoon and gets the cormorants ready for work.First,he ties a piece of grass around their necks to(D)_____________them from eating big fish.Then when Damin's boat reaches the right place in the river,pushes them into the river.Damin uses several ways to attract fish.During the day,he jumps up and down on his boat.

After dark,he hangs a light on a post at the front of the boat.The cormorants bring the fish back to the boat.

(E)Damin takes the fish and then throws the fish into a big basket.No nets are required for this type of fishing.

Comorant fishing was once practiced in lots of places in south-East China,and there were many fishermen in the area.But today,few young people are interested in(F)it.In50years,perhaps(G)将不再会有cormorant fishermen in the world.

55.写出文中画线部分(A)和(C)的同义词或近义词语:________________;___________________

56.在文中(B)和(D)的空白处分别填入适当的单词:___________________;__________________

57.将文中画线部分(E)改写为:

Damin takes the fish and then the fish______________________________into a big basket.

58.文中画线部分(F)提代的是:_______________________________

59.将文中画线部分(G)译成英语:______________________________

七.阅读与表达

(A)阅读下文,然后根据其内容从方框中选出可以填人文中空白处的正确选项。

A.can't wait to

B.falling over

C.enjoyed the trip so much

D.check in at an excellent hotel

E.how to ski

The Canada Travel invites you to a skiing adventure!

Spend five days at a wonder resort

Arrives by bus and60

The slopes are just opposite the hotel

There are instructors who can show you61

Don’t worry,you won’t spend all your time62

I63tell my friends how great it was!

It was so wonderful!I was sad when the holiday was over.

It’s a great place for couples.

My wife and I64

B)根据下列要求,完成大作文(80-100词)

国家鼓励青少年进行体育运动,运动不但强身健体还可以让大家养成健康的生活方式。你经常做哪些运动,你的生活或者你自己因此发生了哪些改变?通过运动你收获了什么?

请以The more I exercise,the______________I will be为题一篇作文。

注意:

1.补全标题(参考词汇:healthy,happy,beautiful.strong等)

2.确定主题,说明原因;围绕主题适当论述;按题的要求,丰富文章内容。

3.可以使用自己亲身经历或者虚构故事,也可以进行单纯的观点阐述。

4.作文中不要出现考生和相关人物的真实校名和姓名。

2019年沈河区九年级教学质量监测(一)

英语参考答案及评分标准

一、单项选择:

1-5:DDCBB6-10:DCADB

二、完形填空:

11-15:DCBAC16-20:DBDAD21-25:CBDCA

三、阅读理解:

26-29:DCDB30-33:BADA34-37:DACB

四、回答问题:

38.After his sister left Rose with his grandparents.

39.Accidents happen quickly and can cost a loved one's life.

40.She used/By using the Heimlich manoeuvre,which pushed the nut out of Rose's throat.

41.To help the throat clear.

42.Everyone should have first-aid training.

五、阅读填空:

43.weight44.unhealthy45.best46.to say

47.doctor's48.eating49.medical

六、综合阅读:

(A)

50.favourite;leave/escape

51.quite a

52.because;agree

53.would rather stay with them

54."The Ranson of Red Chief"is one of O.Henry's best-loved stories.

(B)

55.healthy;sets off

56.swim;stop

57.are thrown

58.cormorant fishing

59.there will be no more

六、阅读与表达:

A):DFBAC

2018-2019学年辽宁省沈阳市沈河区九年级上学期期末数学试卷与答案

2018-2019学年辽宁省沈阳市沈河区九年级上学期期末数学试卷一、选择题(每小题2分,共20分) 1.(2分)若,则的值为() A.B.C.D. 2.(2分)如图是一个由正方体和一个正四棱锥组成的立体图形,它的俯视图是() A.B.C.D. 3.(2分)若反比例函数y=﹣的图象上有三个点(﹣1,y1),(﹣,y2),(,y3),则y1,y2,y3的大小关系是() A.y1<y2<y3B.y3<y2<y1C.y3<y1<y2D.y2≤y1<y3 4.(2分)如图,AB与CD相交于点E,AD∥BC,,CD=16,则DE的长为() A.3B.6C.D.10 5.(2分)下表记录了一名设计运动员在同一条件下的射击成绩,这名射击运动员射击一次,射击中9环的概率约是()

6.(2分)若△ABC∽△DEF,且△ABC与△DEF的面积比是,则△ABC与△DEF对应中线的比为() A.B.C.D. 7.(2分)下列命题正确的是() A.对角线互相平分的四边形是平行四边形 B.对角线互相垂直的四边形是菱形 8 9 A.9.6cm B.10cm C.20cm D.12cm 10.(2分)如图,在正方形网格中,△ABC的位置如图,其中点A、B、C分别在格点上,则sin A的值是()

A.B.C.D. 二、填空题(每小题3分,共18分) 11.(3分)计算:cos230°+|1﹣|﹣2sin45°+(π﹣3.14)0=. 12.(3分)如图,已知路灯离的面的高度AB为4.8m,身高为1.6m的小明站在D处的影长为2m,那么此时小明离电杆AB的距离BD为m. 13.(3分)在某校运动会4×400m接力赛中,甲乙两名同学都是第一棒,他们随机从三个赛道中抽取两个不同赛道,则甲乙两名同学恰好抽中相邻赛道的概率为.14.(3分)如图,在平面直角坐标系中,已知点A(﹣2,4),B(﹣4,﹣2),以原点O为位似中心,相似比为,把△ABO缩小,则点A的对应点A'的坐标是. 15.(3分)若关于x的一元二次方程(k﹣1)x2+4x+1=0有实数根,则k的取值范围是.16.(3分)在矩形ABCD中,AB=9,tan∠ADB=,点E在射线DA上,连接BE,将线段BE绕点E旋转90°后,点B恰好落在射线DB上(此时点B的对应点为点F),则线段DF的长为.

2019年辽宁省沈阳市铁西区中考数学一模试卷(含答案解析)

2019年辽宁省沈阳市铁西区中考数学一模试卷 一、选择题 1.计算:(﹣5)+3的结果是() A.﹣8 B.﹣2 C.2 D.8 2.把多项式m2﹣9m分解因式,结果正确的是() A.m(m﹣9)B.(m+3)(m﹣3) C.m(m+3)(m﹣3)D.(m﹣3)2 3.在下面几何体中,其俯视图是三角形的是() A.B. C.D. 4.2016年国庆节期间,沈阳共接待游客约657.9万人次,657.9万用科学记数法表示为()A.0.6579×103 B.6.579×102 C.6.579×106 D.65.79×105 5.某校调查了20名男生某一周参加篮球运动的次数,调查结果如表所示,那么这20名男生该周参加篮球运动次数的平均数是() 次数 2 3 4 5 人数 2 2 10 6 A.3次B.3.5次C.4次D.4.5次 6.在平面直角坐标系中,点A在第一象限,点B在x轴正半轴上,∠AOB=60°,OA=8.点A的坐标是() A.(4,8)B.(4,4)C.(4,4)D.(8,4) 7.如图,正五边形ABCDE的对角线BD.CE相交于点F,则下列结论正确的是()

A.∠BCE=36°B.△BCF是直角三角形 C.△BCD≌△CDE D.AB⊥BD 8.分式方程=的解是() A.x=﹣2 B.x=﹣3 C.x=2 D.x=3 9.已知点A(﹣2,y1)、B(﹣4,y2)都在反比例函数y=(k<0)的图象上,则y1.y2的大小关系为() A.y1>y2 B.y1<y2 C.y1=y2 D.无法确定 10.二次函数y=ax2+bx+c的图象如图所示,下列结论:①a+c>b;②4ac<b2;③2a+b>0.其中正确的有() A.①② B.①③ C.②③ D.② 二、填空题 11.计算:2a3÷a=_________. 12.学校准备从甲、乙、丙、丁四个科创小组中选出一组代表学校参加青少年科技创新大赛,各组的平时成绩的平均数(单位:分)及方差s2如表所示: 甲乙丙丁 7 8 8 7 s2 1 1.2 1 1.8 如果要选出一个成绩较好且状态稳定的组去参赛,那么应选的组是__________. 13.若关于x的一元二次方程x2﹣4x+m=0有两个不相等的实数根,则m的取值范围为________.14.如图,AB∥CD,点E是线段CD上的一点,BE交AD于点F,EF=BF,CD=10,AB=8,CE=____.

辽宁省沈阳市和平区各个街道电话

街道名称所属社区联系电话街道名称所属社区联系电话 太原街沈阳站62503573 新华 中兴23507343正大23861913华光23527318洪福62105620红星23515673中华23254817新华西23393561环宇62682732同泽23370378五环23214422南十62118896铁军62102531临沂路23397603八一62501007平安23516567中山62500521宜春23512166联营23341617砂阳北23311804民族62102524 八经 沈电62251580 西塔 方迪23470798和平新村62251581图们62102532延安里62538552沈纺北62100166桂林22840392西铁62503277市府22835729安图62501956兰翎22704884纺织62504985宝环62251582 南湖三好街23890297 集贤 光复里62033277文安路23991637辽声23315636东大83688298南九62033050保安寺23902892太平里62037370彩塔街23930390 文化路23900485南十62688720中科院23925013湖畔23389676新世界23604878光明23305960旺嘉园23601096鑫贸62534737 马路湾 四平街23224398 浑河湾 砂山新村23318169嘉兴23235722砂阳南23300169城中花园62258581水源地23316076省委23253694南京南23306510振兴62689775河北23316406铁厦62689779万和23312019电业28654503和平湾23327736长兴62534626玉屏二23300310 南市场群芳62180725 北市场 市府路62660268鲁园62180715皇寺路62660273

辽宁省沈阳市沈河区2017-2018学年七年级(上)期末数学试卷

第1页,总8页 …………○…………外…………○…………装…………○…………订…………○…………线…………○………… 姓名:____________班级:____________学号:___________ …………○…………内…………○…………装…………○…………订…………○…………线…………○………… 辽宁省沈阳市沈河区2017-2018学年七年级(上)期末数学 试卷 考试时间:**分钟 满分:**分 姓名:____________班级:____________学号:___________ 题号 一 二 三 总分 核分人 得分 注意 事项 : 1、 填 写 答 题 卡 的 内 容 用 2B 铅 笔 填 写 2、提前 15 分钟收取答题卡 第Ⅰ卷 客观题 第Ⅰ卷的注释 评卷人 得分 一、单选题(共10题) 1. 地球的表面积约为510000000km 2,将510000000用科学记数法表示为() A .0.51×109 B .5.1×109 C .5.1×108 D .0.51×107 2. 已知x ﹣2y=3,那么代数式3﹣2x+4y 的 值 是 ( ) A. ﹣3 B. 0 C. 6 D. 9 3. ﹣2017的绝对值是( ) A .﹣2017 B .2017 C .1 D .﹣1 4. 下列四个几何体中,主视图与左视图相同的几何体有( ) A .1个 B .2个 C .3个 D .4个 5. 下列结论中,正确的是 A .0是最小的正数 B .0是最大的负数 C .0既是正数,又是负数 D .0既不是正数,也不是负数 6. 下列方程中,解为 的方程是 A . B . C . D . 7. 下列生活、生产现象:①用两个钉子就可以把木条固定在墙上;②从A 地到B 地架设电线,总是尽可能沿着线段架设;③植树时,只要定出两颗树的位置,就能确定同一行树所在的直线;④把弯曲的公路改直,就能缩短路程.其中可用“两点之间,线段最短”来解释的现象有( )

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2020-2021学年辽宁省沈阳市铁西区八年级(上)期末数学试卷

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( ) A .1 2x y =?? =? B .2 1x y =?? =? C .2 3x y =?? =? D .1 3x y =?? =? 7.(3分)对于一次函数24y x =-+,下列结论错误的是( ) A .函数值随自变量的增大而减小 B .函数的图象不经过第三象限 C .函数的图象向下平移4个单位长度得2y x =-的图象 D .函数的图象与x 轴的交点坐标是(0,4) 8.(3分)如图,在33?的网格中,每个小正方形的边长均为1,点A ,B ,C 都在格点上,若BD 是ABC ?的高,则BD 的长为( ) A . 10 1313 B . 9 1313 C . 8 1313 D . 7 1313 二、填空题(每小题4分,共20分) 9.(4分)16的算术平方根是 . 10.(4分)如图,在四边形ABDC 中,//CD AB ,AC BC ⊥于点C ,若40A ∠=?,则DCB ∠的度数为 ?. 11.(4分)祖冲之是我国著名的数学家,他把圆周率精确到小数点后7位,这是祖冲之最重要的数学贡献.随着科技的不断发展,人们开始使用计算机来计算圆周率的小数位.数学杨老师对圆周率的小数点后100位数字进行了如下统计: 数字 0 1 2 3 4 5 6 7 8 9 频数 8 8 12 11 10 8 9 8 12 14

年辽宁省沈阳市中考数学试题及解析

2015年辽宁省沈阳市中考数学试卷 一.选择题(每小题3分,共24分,只有一个答案是正确的) 1.(3分)(2015?沈阳)比0大的数是() C.﹣0.5 D.1 A.﹣2B. ﹣ 2.(3分)(2015?沈阳)如图是由6个相同的小立方块搭成的几何体,这个几何体的左视图是() A. B.C. D. 3.(3分)(2015?沈阳)下列事件为必然事件的是() A. 经过有交通信号灯的路口,遇到红灯 B. 明天一定会下雨 C. 抛出的篮球会下落 D. 任意买一张电影票,座位号是2的倍数 4.(3分)(2015?沈阳)如图,在△ABC中,点D是边AB上一点,点E是边AC上一点,且DE∥BC,∠B=40°,∠AED=60°,则∠A的度数是( ) A.100°B.90° C. 80° D. 70° 5.(3分)(2015?沈阳)下列计算结果正确的是( ) A. a4?a2=a8 B. (a5)2=a7 C. (a﹣b)2=a2﹣b2 D. (ab)2=a2b2 6.(3分)(2015?沈阳)一组数据2、3、4、4、5、5、5的中位数和众数分别是( ) A.3.5,5 B. 4,4 C.4,5 D.4.5,4 7.(3分)(2015?沈阳)顺次连接对角线相等的四边形的各边中点,所形成的四边形是() A.平行四边形 B. 菱形C.矩形 D. 正方形

8.(3分)(2015?沈阳)在平面直角坐标系中,二次函数y=a(x﹣h)2(a≠0)的图象可能是() A.B. C. D. 二.填空题(每小题4分,共32分) 9.(4分)(2015?沈阳)分解因式:ma2﹣mb2 = . 10.(4分)(2015?沈阳)不等式组的解集是. 11.(4分)(2015?沈阳)如图,在△ABC中,AB=AC,∠B=30°,以点A为圆心,以3cm为半径作⊙A,当AB=cm时,BC与⊙A相切. 12.(4分)(2015?沈阳)某跳远队甲、乙两名运动员最近10次跳远成绩的平均数为602cm,若甲跳远成绩的方差为S甲2=65.84,乙跳远成绩的方差为S乙2=285.21,则成绩比较稳定的是.(填“甲”或“乙”) 13.(4分)(2015?沈阳)在一个不透明的袋中装有12个红球和若干个黑球,每个球除颜色外都相同,任意摸出一个球是黑球的概率为,那么袋中的黑球有个. 14.(4分)(2015?沈阳)如图,△ABC与△DEF位似,位似中心为点O,且△ABC的面积等于△DEF面积的,则AB:DE= . 15.(4分)(2015?沈阳)如图1,在某个盛水容器内,有一个小水杯,小水杯内有部分水,现在匀速持续地向小水杯内注水,注满小水杯后,继续注水,小水杯内水的高度y(cm)和注水时间x(s)之间的关系满足如图2中的图象,则至少需要s能把小水杯注满.

2017-2018学年辽宁省沈阳市沈河区七年级(上)期末数学试卷

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B.卖早餐的师傅想了解一锅茶鸡蛋的咸度 C.班主任了解每位学生的家庭情况 D.了解九年级一班全体学生立定跳远的成绩 8.下列运用等式的性质,变形不正确的是() A.若x=y,则x+5=y+5 B.若a=b,则ac=bc C.若x=y,则=D.若=(c≠0),则a=b 9.已知x﹣2y=3,那么代数式3﹣2x+4y的值是() A.﹣3 B.0 C.6 D.9 10.如果过一个多边形的一个顶点的对角线有6条,则该多边形是() A.九边形B.八边形C.七边形D.六边形 二、填空题(每小题3分,共18分) 11.用一个平面去截长方体,三棱柱,圆柱,和圆锥,其中不能截出三角形的几何体是. 12.下表列出了国外几个市与北京的时差(带正号的数表示问一时刻比北京时间早的点时数) 如果现在的东京时间是8:00,那么北京的时间是,伦敦的时间是,纽约的时间是.13.某种商品的标价为120元,若以九折降价出售,仍获利20%,该商品的进货价为元. 14.世界上大部分国家都使用摄氏(℃)温度,但美、英等国的天气预报仍然使用华氏(F)温度.两种计量之间有如下对应:a=1.8b+32(a表示华氏温度,b表示摄氏温度),那么摄氏2.5度相当于华氏度. 15.如图,∠AOB是直角,∠AOC=40°,OD平分∠BOC,则∠AOD的度数为. 16.按如图所示的程序计算,我们发现第二次输出的结果为24,那么x的值为.

2018年辽宁省沈阳市中考数学试卷(含答案解析版)

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