江苏省扬州市2018年中考英语试题(Word版,无答案)

扬州市2018年初中毕业、升学统一考试英语试题

一、单项选择(共15小题；每小题1分，计15分)

1.----Who is the lady in red? ----Miss Gao. She teaches English.

A. we

B. us

C. our

D. ours

2.---- does Joanna take the course in DIY? ----Every Saturday afternoon.

A. How long

B. How much

C. How soon

D. How often

3.----Where would you like to go tomorrow, Beijing or Xi'an? ---- is OK. It’s up to you.

A. Either

B. Neither

C. Both

D. All

4. ----I offered Sandy a helping hand. However, she it.----Maybe she can manage herself

A. received

B. returned

C. refused

D. rewarded

5. --Mr. Wu has recommended many books. Have you decided first?--Yes. The Little Prince.

A. how to read

B. which to read

C. when to read

D. where to read

6.--- If I want to be an astronaut, how will I get to be one?

----You do well in school and tame your fears.

A. may

B. can

C. must

D. could

7. Hawking is no longer with us, he will continue to inspire the world.

A. so

B. if

C. but

D. as

8. The Queqiao satellite(卫星) will form a bridge between controllers on Earth and the far side of the Moon.

A. contribution

B. communication

C. celebration

D. competition

9. Hi, guys, please write three facts you last term in your project.

A. learned

B. are learning

C. have learned

D. learn

10. ----When will your sister go to England?----She London since four months ago.

A. went to

B. has gone to

C. has been to

D. has been in

11. We should stop fireworks to reduce pollution.

A. getting off

B. turning off

C. taking off

D. setting off

12.--- What are you watching?

----The Story of China. This part at China Block Printing Museum of Yangzhou in 2014.

A. filmed

B. was filmed

C. has filmed

D. is filmed

13. ----I can't afford the white dress.----What about the orange one? The price is a little .

A. cheaper

B. higher

C. lower

D. more expensive

14.---- You must hand in your report tomorrow.----What? .We can't finish it that quickly.

A. No way

B. No problem

C. That's right

D. That's for sure

15.----I'm tired out. ----How can you be manager and accountant at one time? .

A. The early bird catches the worm

B. Don't put all your eggs in one basket

C. Actions speak louder than words

D. Don't burn the candle at both ends

二、完形填空(共15小题；每小题1分，计15分)

One afternoon a few months after Tom and I were married. Max walked into the dining room, where I was looking through my old photos.

These months I was learning to let Max come 16 on his own. If I moved too quickly, he ran away. If I was 17 , we often ended up playing, laughing, and recently, even sitting together on the sofa with a book.

“Who' s that?” he pointed to one photo.

“My mom. I suppose she is your 18 Sylvia.”

“Cool. Who is th at to me?”

“That was my grandfather. He died a few months ago.”

“Hmm. Too bad he had to die.”

Death is always a painful 19 especially for a seven-year-old child who d lost his mother only two years before. I secretly put away the pictures of 20 relatives.

He began to finger through the photos. "Who is that to me?

Under his finger I could see my own face. I should have known the answer to his 21 question. But I said, “I’m your 22 mom. I' m sorry that your first mom died.”

“What should I call you?” he asked.

Mom, I wanted to cry. I held back.

“You can call me Mom or Betsy. 23 feels OK for you.”

I waited, expecting a pronouncement of my new 24 .

“S weet,” he said, walking out of the roo m.

For a couple of days afterward, Max 25 a new title for me. "Can we go bowling?”“Can I watch TV?”he'd ask, and then 26 the questions by mouthing the word Mom. Mom was always 27 .

One weekend, he suddenly said, “I notice I don't call you Mom.”

“I noticed that too.”

“28 I say Betsy, I mean Mom. Moms die, you know. I think it's maybe 29 if y ou’ re just Betsy.”

Tears(眼泪) were filling my eyes.

“Hey, Betsy?”

“Yeah,” I said, taking pleasure in the new 30 of my old name.

16. A. down B. near C. close D. back

17. A. kind B. patient C. Helpful D. confident

18. A. grandmother B. mother C. aunt D. cousin

19. A. subject B. speech C. message D. sign

20. A. dead B. boring C. unknown D. strict

21. A. simple B. proper C. stupid D. funny

22. A. natural B. past C. only D. second

23. A. Whoever B. Whatever C. That D. Anybody

24. A. position B. name C. title D. call

25. A. worked out B. turned out C. carried out D. tried out

26. A. answer B. follow C. confirm D. raise

27. A. alive B. wise C. silent D. lost

28. A. Until B. before C. When D. Unless

29. A. politer B. safer C. sadder D. riskier

30. A. pronunciation B. announcement C. voice D. sound

三、阅读理解(共15小题；每小题2分，计30分)

A

Think of the animal world. and a group of colorful wild animals will spring to mind: a parrot's rainbow feathers or the showy scales of sea fish. But, many mammals(哺乳动物) on the planet come in only two colors: black and white. Spend some time exploring what science has discovered about these animals' appearances, and you' ll see that basic black and white isn't so basic at all.

A. The panda's white parts help it hide against snow.

B. Both white spots and white stripes help skunks kill their victims.

C. Zebras with wider stripes are less attractive to flies.

D. Scientists have already known all the secrets about the stripes.

32. What does the underlined word "vulnerable" mean?

A. Being easily landed.

B. Being easily attracted.

C. Being easily discovered.

D. Being easily attacked.

33. Which could be the best title of the passage?

A. Why Animal Stripes Come in Different Shapes

B. Why So Many Animals Wear Black-and-White Coats

C. How Wild Animals Protect Themselves from Enemies

D. How Black and White Become Basic Colors in Animal World

B

I saved the grain carefully and finally had enough to plant. I built a wall around my garden to keep the wild goats away.

Then when my crop bore its fruit, the birds discovered it. The birds were not afraid of my dog at all. I shot them but as soon as I walked away. they returned. At last, I killed some birds and hung them among the crop, hoping they would serve as the scarecrows, which turned out to be successful. By harvest time. I had nearly two bushels of rice and two and a half bushels of wheat.

With my new grain to store, I found a new problem. The fine grain ran through my baskets. It took me nearly two months to form and dry two ugly pots- one for rice and one for wheat.

Next I formed a clay oven and made some other tools from hard wood and cloth to bake bread.

I made and baked bread in my oven. I spent the third year on the island in farming and baking.

Soon after that. I began to think of my days sailing in a tidy boat with Xury. I wished to have a boat and explore the island by sea.

I tried to turn over the ship's boat that I had seen washed up, but failed. I was still determined to have a boat. So I chose a strong tree and spent weeks cutting it down. Then it took me months to turn

it from tree to boat.

When it was time to launch, I realized I had made my boat too far from the nearest stream. The boat was far too heavy for me to move. I tried bringing the water to the boat instead of the boat to the water. I soon saw it would take me twenty years of constant labor.

I celebrated my fourth year on the island with two boats, but I was no closer to a sea journey.

----Taken from The Adventures of Robinson Crusoe

34. Paragraph 2 mainly tells us .

A. how much rice and wheat I harvested

B. how many tools I made to bake bread

C. how I protected my crop from the birds

D. how I kept the wild goats away from my crop

35. What does "a new problem" in Paragraph 3 refer to?

A. How to plant grain.

B. How to make pots.

C. How to store grain.

D. How to fix the baskets.

36. By the last sentence "I was no closer to a sea journey", the writer means .

A. I was getting closer and closer to the sea

B. I was getting farther and farther from the sea

C. it was possible for me to have a sea journey in my boats

D. it was still impossible for me to explore the island by sea

37. What can we infer(推断) from the passage?

A. I managed to turn over the ships boat.

B. I spent months bringing the boat to the nearest stream.

C. I tried to solve the problems with my courage and wisdom.

D. I spent the third year on the island in farming and baking.

C

This spring, the town of Oso saw twice the usual rainfall. When the sun finally shone, LoAnna and Kris's three older kids ran outside. Inside, LoAnna nursed their four-month-old Kristian. Suddenly LoAnna heard a loud noise. She rushed outside in time to see a half-mile-wide mud and sand thundering down the hill toward them, knocking over hundreds of trees.

Mudslide(泥流)!

LoAnna gathered everyone into the bedroom farthest from the falling hill side and waited.

Kris got a call from LoAnna, He hurriedly drove home.

Highway 530 was covered with thick sand, fallen trees. Kris had to run home.

The mud came up to his knees. Suddenly he heard a woman screaming for help. He pulled through mud, over pieces of houses to the source of the cries.

At first, he saw an arm reaching up through the debris. There, a woman, buried under pieces of walls. furniture, and trees. was holding a baby. Finally, he freed the baby. By this time, other citizens had come.

After saving the woman, Kris moved on. He was still a mile from home. Ahead lay two fallen houses. He heard a moan. Stepping toward the house, Kris nearly killed himself in the mud. An older man was trapped in house debris. He was twice Kriss weight. He'd have to wait for more help.

Just then, Kris heard another man moaning from the second house. Kris pulled away some pieces of the house, but the man was buried too deeply for him.

Hearing helicopter(直升飞机) on the roof, Kris climbed up, met a member of the

search-and-rescue team and led him to the first man. Then he headed back and kept digging until he could turn the second man over. After the rest of the team arrived, Kris moved on to find his family.

Kris finally reached home. It was flooded, but the mud had stopped just shy of the house. His truck was gone, as were LoAnna and the others. He checked cars and houses nearby for survivors, then ran to the command center.

Not long after he arrived, he saw his truck coming down the road. LoAnna jumped out.

Kris was praised by the Red Cross for his heroics.

38. The purpose of the first two paragraphs is to .

A. create an unusual setting of the story

B. introduce the central idea of the story

C. describe a turning point of the story

D. review the main character of the story

39. Which of the following is the correct order of the story?

a. Kris found a man buried too deeply for him.

b. Kris heard a woman screaming for help.

c. Kris led a rescue member to save the older man.

d. Kris found LoAnna, kids and his truck gon

e.

e. Kris was nearly killed in the mud.

A. beacd

B. badec

C. aecbd

D. aedbc

40. Which of the following sentences is TRUE?

A. Kris saved three persons in all.

B. Kris saved the baby by himself.

C. Kris pulled the first man out of mud.

D. Kris found some survivors near his house.

41. Which sentence best shows the central theme in the text?

A. Kris got a call from LoAnna.

B. He was still a mile from home.

C. He saw his truck coming down the road.

D. Kris was praised by the Red Cross for his heroics.

D

“Growing up, Einstein saw his father struggle to support the family and move the family for different jobs, Einstein had to move between schools and it was challenging for him to catch up with his new class.”

This story about the struggles(f +)of famous scientists can't be found in your science textbook, but a new study suggested maybe it should be.

In the study, 402 9th- and 10th-grade students from four New York City high schools in low-income areas were divided into three groups. The students read some 800-word stories about Albert Einstein and Marie Curie. The control group read a regular science textbook description about their great achievements. Another group read about the scientists' personal struggles, like Einstein's running away from Nazi Germany. The third group read about the scientists' intellectual struggles, as they tried different experiments--- and failed.

As it turned out. the students who had read about scientists' struggles, whether personal or intellectual, had higher grades than students who had read about achievements. Those who weren’t getting good grades to begin with gained the most. Those in the control group not only didn't see a grade increase, they had lower grades than the grading before the study began.

“We think that struggle stories showed scientists' weaknesses.” the researchers write, “which creates a sense of connection between the students and scientists. And that may make it easier for students to see them as role models.”

“When kids think Einstein is a talent who is untouchable, then they believe they will never get there, "said lead researcher Xiaodong Lin-Siegler, PhD.

If we want to educate a future generation of great scientists, we can start by changing the way we talk about the great scientists of the past. An 800-word story about scientists’ failures, not just their achievements, in science textbooks will make it happen.

42. What does the article mainly talk about?

A. Learning about struggles of scientists may help students succeed in science.

B. Reading stories of scientists' achievements will help educate future scientists.

C. Science textbooks should describe scientists failures instead of their achievements.

D. Stories of scientists' struggles may make students see scientists as being untouchable.

43. From Paragraph 4, we can know that .

A. those good at science achieved most from this exercise

B. the control group had lower grades than the other two groups

C. the students' grades in the control group remained the same

D. the students in the third group had the highest grades

44. What's the main idea for Paragraphs 5 and 6?

A. Findings of the study

B. Explanations from the researchers

C. Process of the stud

D. Suggestions from the researchers

45. In the study, which of the following would the third group probably read?

A. Einstein won many awards in his life, including the 1921 Nobel Prize in physics.

B. Going to college was hard for Curie because at that time women were not allowed to attend school. So, Curie had to study at secret classes.

C. By the time she reached college, Curie was able to understand five languages that top scientists spoke at that time.

D. Often working hour after hour and day after day. Curie devoted herself to solving challenging

problems and learning from her mistakes.

四、词汇运用(共10小题;每小题1分,计10分)

46. Cells are the and most basic units of living matter. (small)

47. There is a place in my heart where all nations will live some day. (peace)

48. Tom is thinking about going as a cowboy for the year at Halloween. (five)

49. Dad them to our house and Mum soon had a lunch ready for them.(bring)

50. The librarian was at me and seemed friendly. (smile)

51. Visitors to Yangzhou can enjoy a bite of dishes at Yechun Tea House.(当地的)

52. Ge Garden with an area of12,000 meters houses over60 types of bamboo.(平方的)

53. Some valuable jewellery in that shop was last week.(偷)

54. Yangzhou Eight Eccentrics were a group of who created their own style.(艺术家)

55. China has changed our country and impressed the world. (速度)

五、任务型阅读(共10空;每空1分,计10分)

Beyond its influence on health, not getting enough sleep can lead to car accidents or other mistakes. Here are what sleep researchers have found about how to sleep.

How much sleep do we actually need?

It is known that all of us naturally need no less than eight hours of sleep per night. When we sleep below six hours per 24. we're at an increased risk of health problems. Some of us think we can make up any of those hours lost during the week on the weekends. Sadly there is no storage system for sleep in the brain.

Can we train ourselves to need less sleep?

As a study in 1964, a 17-year-old boy named Randy Gardner stayed awake for 264 hours. How many people could do anything close to that without dying?

When you are reading this, you might say you usually get six hours of sleep and feel just fine. Sleep experts often compare people without enough sleep to drunk drivers: They don’t get behind the wheel thinking they're probably going to kill someone.

Can we drink coffee instead of sleeping?

Coffee can keep us awake. Remember, too much coffee may throw off our sleep and energy cycles. So limit coffee and avoid caffeine for four to six hours before bedtime.

Does a sense of purpose connect to sleep quality?

A new research suggests a kind of strong connection between purpose in life and sleep. People who have a greater sense of purpose usually have better physical and mental health, which in turn explains their higher-quality sleep. Perhaps developing a sense of purpose in life could be as useful

六、缺词填空(共10空;每空1分，计10分)

After crossing the river, Dorothy and her friends came to a poppy flower field, with many other colourful flowers next to it.

“How b 66 !” Dorothy said.

“When I have brains, I will probably like them better,” the Scarecrow said.

“If I had a heart, I w ould love them.” added the Tin Woodman.

“I always liked flowers.”the Lion said."But there are n 67 in the forest so bright as these.”

Soon they found t 68 in the middle of poppies. It is known that when there are many of these flowers together, their strong smell will make anyone breathing it fall asleep, even sleep forever. But Dorothy didn’t k 69 this. Soon Dorothy's eyes grew so h 70 that she felt she had to sleep. Dorothy fell among the poppies, fast asleep.

“The smell is k 71 us all. If we leave her here, she will die,” said the Lion. “I can h 72 keep my eyes open, and the dog Toto is asleep already.”

“Run fast and get out of here,” said the Scarecrow to the Lion, "We can carry the little girl, but you are too heavy.

The Lion ran as fast as possible but he fell asleep b 73 he was out of the field. Luckily, the Scarecrow and the Tin Woodman were not troubled by the smell. They made a chair with their hands and carried Dorothy t 74 the flowers to the grass far enough from the poppy field. The Tin Woodman built a truck and pulled the Lion with the Scarecrow. The sweet fresh air w 75 Dorothy, Toto and the Lion. Soon they continued their journey.

七、书面表达(计30分)

A.句子翻译(共5小题;每小题2分,计10分)

将下列句子译成英语，并将所译句子写在答题卡标有题号的横线上。

76.糖果含糖太多,对我们的牙齿有害。

77.总体来说,这个产品满足了大部分顾客的需求。

78.记住,每个人都可以做点对保护环境有益的事情。

79.扬州位于江苏中部,以其悠久的历史和文化而闻名。

80.如果在这里建设一个新的机场,许多动物将失去家园。

B.写作(计20分)

2)须回复所有问题(问题1两点，问题2和问题3各三点)，并适当发挥；

3)词数：100词左右(开头与结尾已给出，不计入总词数)；

4)不得使用真实姓名、校名和地名等。

Dear Mike

It's fantastic that you will come to China and spend the Mid- Autumn Festival with a Chinese family.

Enjoy your stay in China.

Li Ming

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5. （1）计算： （2）解分式方程： 【答案】（1）原式= ×3 - × +2- + ， = - +2- + ， =2. （2）方程两边同时乘以x-2得： x-1+2（x-2）=-3, 去括号得：x-1+2x-4=-3, 移项得：x+2x=-3+1+4, 合并同类项得：3x=2， 系数化为1得：x= . 检验：将x= 代入最简公分母不为0，故是原分式方程的根， ∴原分式方程的解为：x= . 6. （1）计算：2（－1）＋|-3|-（-1）0； （2）化简并求值，其中a=1，b=2。 【答案】（1）原式=4 -2+3-1=4 （2）原式= =a-b 当a=1，b=2时，原式=1-2=-1 7. （1）计算： （2）解方程：x2-2x-1=0 【答案】（1）解：原式= - -1+3=2 （2）解：∵a=1,b=-2,c=-1 ∴?=b2-4ac=4+4=8,

∴x= x= ∴x1= ，x2= 8.计算：＋－4sin45°＋． 【答案】原式= 9.计算： 【答案】原式=2-3+8-1=6 10.计算： 【答案】解：原式= = 11.计算：． 【答案】解：原式=4+1-6=-1 12.计算或化简. （1）； （2）. 【答案】（1）解：（）-1+| ?2|+tan60° =2+（2- ）+ =2+2- + =4 （2）解：（2x+3）2-（2x+3）（2x-3） =（2x）2+12x+9-[（2x2）-9] =（2x）2+12x+9-（2x）2+9 =12x+18 13.计算： 【答案】解： =1+2+

2018年福建省中考英语真题试卷含解析

2018年福建省初中毕业和高中阶段学校招生考试卷含解析 英语（A）试题 Ⅰ.听力（共三节，20小题；每小题1.5分，满分30分） 第一节听句子听下面五个句子，从每小题所给的三幅图中选出与句子内容相符的选项。（每个句子读两遍。） 1. 2. 3. 4. 5. 第二节听对话听下面七段对话，从每小题所给的A、B、C三个选项中选出正确答案。(每段对话读两遍) 听第1段对话，回答第6小题。 6. How was the weather yesterday? A. Warm. B. Cold. C. Hot. 听第2段对话，回答第7小题。

7. What are the speakers talking about? A. No littering B. No smoking. C. No smoking. 听第3段对话，回答第8小题。 8. Who made a speech at the ceremony? A. Susan. B. Bob. C. Betty. 听第4段对话，回答第9小题。 9. How long will the meeting last? A. Two hours. B. Three hours. C. Five hours. 听第5段对话,回答第10、11小题。 10. Where does the woman want to go? A. A library. B. A restaurant. C. A supermarket. 11. Which bus will the woman take? A. No. 3. B. No. 5.

2018年中考数学真题汇编 圆

2018年中考数学真题汇编:圆(填空+选择46题)答案 一、选择题 1.已知的半径为，的半径为，圆心距，则与的位置关系是（ C ） A. 外离 B. 外切 C. 相交 D. 内切 2. 如图，为的直径，是的弦，，则的度数为（ C ） A. B. C. D. 3.已知半径为5的⊙O是△ABC的外接圆，若∠ABC=25°，则劣弧的长为（ C ） A. B. C. D. 4. 如图，在中，，的半径为3，则图中阴影部分的面积是（ C ） A. B. C. D. 5.如图，AB是圆O的弦，OC⊥AB，交圆O于点C，连接OA，OB，BC，若∠ABC=20°，则∠AOB的度数是（ D ） A.40° B.50° C.70° D.80° 6.如图，蒙古包可近似看作由圆锥和圆柱组成，若用毛毡搭建一个底面圆面积为25πm2，圆柱高为3m，圆锥高为2m的蒙古包，则需要毛毡的面积是（ A ） A. B.40πm2 C. D.55πm2 7.如图,从一块直径为的圆形铁皮上剪出一个圆心角为90°的扇形.则此扇形的面积为（ A ） A. B. C. D. 8.用反证法证明时，假设结论“点在圆外”不成立，那么点与圆的位置关系只能是（D ） A. 点在圆内 B. 点在圆上 C. 点在圆心上 D. 点在圆上或圆内 9.如图，AB是圆锥的母线，BC为底面直径，已知BC=6cm，圆锥的面积为15πcm2，则sin∠ABC的值为（ C ） A. B. C. D.

10.如图所示，AB是⊙O的直径，PA切⊙O于点A，线段PO交⊙O于点C，连结BC，若∠P=36°，则∠B等于（ A ）。 A.27° B.32° C.36° D.54° 11.如图，过点，，，点是轴下方上的一点，连接，，则 的度数是（ B ） A. B. C. D. 12.如图，AC是⊙O的直径，弦BD⊥AO于E，连接BC，过点O作OF⊥BC于F，若BD=8cm，AE=2cm，则OF的长度是（ D ） A. 3cm B. cm C. 2.5cm D. cm 13.如图，在△ABC中，∠ACB=90°，∠A=30°，AB=4，以点B为圆心，BC长为半径画弧，交边AB于点D，则 的长为（ C ） A. B. C. D. 14.如图，点A，B，C在⊙O上，∠ACB=35°，则∠AOB的度数是（ B ） A. 75° B. 70° C. 65° D. 35° 15.如图，一把直尺，的直角三角板和光盘如图摆放，为角与直尺交点，,则光盘的直径是( D ) A.3 B. C. D. 16. 如图，已知AB是的直径，点P在BA的延长线上，PD与相切于点D，过点B作PD的垂线交PD 的延长线于点C，若的半径为4，，则PA的长为（ A ） A. 4 B. C. 3 D. 2.5 17.在中，若为边的中点，则必有成立.依据以上结论，解决如下问题： 如图，在矩形中，已知，点在以为直径的半圆上运动，则的最小 值为（ D ）A. B. C. 34 D. 10

2018年中考英语试卷及答案

初中毕业考试 英语试卷 Ⅳ单项选择从A、B、C、D 四个选项中，找出可以填 入相应空白处的最佳答案。（共15分，每小题1分） 3 21. --- Morning, class! Good luck to all of you in the exam! --- Morning, teacher. ________. A. The same to you. B. You, too. C. Thank you. D. I’m sorry I can’t. 22. --- I don’t think teenagers should drive cars. --- _______. They aren’t serious enough. A. I agree B. I don’t agree C. I think D. I don’t think 23. ---If there are ______ people driving , there will be ______ air pollution. --- Yes, the air will be fresher. A. less; less B. less; fewer C. fewer; fewer D. fewer; less 24. ---There are many volunteers ______ are helping the children in Sichuan. --- And most of them are college students. A. which B. when C. whose D. who 25. --- You always spend only a little time on your study. You really _____ me down. --- I’m sorry, Mum. I won’t do that again. A. take B. put C. let D. look 26. --- Can you_____ your little brother? I’m busy now.

全国各地2018年中考数学真题汇编：实数与代数式选择填空题(word版含答案)

实数与代数式(选择+填空28题) 一、选择题 1. (2018山东潍坊)( ) A. B. C. D. 【答案】B 2.(2018四川内江)已知：，则的值是（） A. B. C. 3 D. -3 【答案】C 3.按如图所示的运算程序,能使输出的结果为的是（） A. B. C. D. 【答案】C 4.下列无理数中，与最接近的是（） A. B. C. D.

【答案】C 5.四个数0，1，，中，无理数的是（） A. B.1 C. D.0 【答案】A 6.下列计算正确的是（） A. B. C. D. 【答案】D 7.估计的值在（） A. 5和6之间 B. 6和7之间 C. 7和8之间 D. 8和9之间 【答案】D 8.我国南宋数学家杨辉所著的《详解九章算术》一书中，用下图的三角形解释二项式 的展开式的各项系数，此三角形称为“杨辉三角”．

根据“杨辉三角”请计算的展开式中从左起第四项的系数为（） A. 84 B. 56 C. 35 D. 28 【答案】B 9.如果规定[x]表示不大于x的最大整数，例如[2.3]=2，那么函数y=x﹣[x]的图象为（） A. B. C. D. 【答案】A 10.某班要在一面墙上同时展示数张形状、大小均相同的矩形绘画作品，将这些作品排成一个矩形(作品不完全重合)，现需要在每张作品的四个角落都钉上图钉，如果作品有角落相邻，那么相邻的角落共享一枚图钉(例如，用9枚图钉将4张作品钉在墙上，如图)，若有34枚图钉可供选用，则最多可以展示绘画作

品( ) A. 16张 B. 18张 C. 20张 D. 21张 【答案】D 11.把三角形按如图所示的规律拼图案，其中第①个图案中有4个三角形，第②个图案中有6个三角形，第③个图案中有8个三角形，…，按此规律排列下去，则第⑦个图案中三角形的个数为（） A. 12 B. 14 C. 16 D. 18 【答案】C 12.在平面直角坐标系中，一个智能机器人接到如下指令，从原点O出发，按向右，向上，向右，向下的方向依次不断移动，每次移动1m，其行走路线如图所示，第1次移动到，第2次移动到……，第n 次移动到，则△的面积是（） A.504 B. C. D.

全国各地2018年中考数学真题汇编(含答案)

全国各地2018年中考数学真题汇编（含答案） 实数与代数式(选择+填空28题) 一、选择题 1. (2018山东潍坊)( ) A. B. C. D. 【答案】B 2.(2018四川内江)已知：，则的值是（） A. B. C. 3 D. -3 【答案】C 3.按如图所示的运算程序,能使输出的结果为的是（） A. B. C. D. 【答案】C 4.下列无理数中，与最接近的是（） A. B. C. D. 【答案】C 5.四个数0，1，，中，无理数的是（） A. B.1 C. D.0 【答案】A 6.下列计算正确的是（）

A. B. C. D. 【答案】D 7.估计的值在（） A. 5和6之间 B. 6和7之间 C. 7和8之间 D. 8和9之间 【答案】D 8.我国南宋数学家杨辉所著的《详解九章算术》一书中，用下图的三角形解释二项式 的展开式的各项系数，此三角形称为“杨辉三角”． 根据“杨辉三角”请计算的展开式中从左起第四项的系数为（） A. 84 B. 56 C. 35 D. 28 【答案】B 9.如果规定[x]表示不大于x的最大整数，例如[2.3]=2，那么函数y=x﹣[x]的图象为（） A. B. C. D. 【答案】A 10.某班要在一面墙上同时展示数张形状、大小均相同的矩形绘画作品，将这些作品排成一个矩形(作品不完全重合)，现需要在每张作品的四个角落都钉上图钉，如果作品有角落相邻，那么相邻的角落共享一枚

图钉(例如，用9枚图钉将4张作品钉在墙上，如图)，若有34枚图钉可供选用，则最多可以展示绘画作品( ) A. 16张 B. 18张 C. 20张 D. 21张 【答案】D 11.把三角形按如图所示的规律拼图案，其中第①个图案中有4个三角形，第②个图案中有6个三角形，第③个图案中有8个三角形，…，按此规律排列下去，则第⑦个图案中三角形的个数为（） A. 12 B. 14 C. 16 D. 18 【答案】C 12.在平面直角坐标系中，一个智能机器人接到如下指令，从原点O出发，按向右，向上，向右，向下的方向依次不断移动，每次移动1m，其行走路线如图所示，第1次移动到，第2次移动到……，第n 次移动到，则△的面积是（） A.504 B. C. D. 【答案】A 13.将全体正奇数排成一个三角形数阵 1 3 5 7 9 11