当前位置:文档之家› 〖加21套中考模拟卷〗南昌市南大附中重点达标名校2019-2020学年十校联考最后英语试题含解析

〖加21套中考模拟卷〗南昌市南大附中重点达标名校2019-2020学年十校联考最后英语试题含解析

〖加21套中考模拟卷〗南昌市南大附中重点达标名校2019-2020学年十校联考最后英语试题含解析
〖加21套中考模拟卷〗南昌市南大附中重点达标名校2019-2020学年十校联考最后英语试题含解析

南昌市南大附中重点达标名校2019-2020学年十校联考最后英语试题Ⅰ. 单项选择

1、--Did you hear someone knocking at the door just now, Tom?

--No, I _______ TV with my friend in my bedroom.

A.was watching B.watched C.am watching D.watch

2、—Which sign means "No smoking"?

—________.

A.B.C.D.

3、—I didn't hear you come in just now.

—That's good.We tried ________ any noise, for you were sleeping.

A.not make B.to make C.not to make D.making

4、On World Environment Day, we notices to help people form a habit of sorting the waste.

A.put out B.hand out C.bring out

5、Driving after drinking ______ a lot of traffic accidents every year.

A.makes B.completes C.causes D.prevents

6、Get up early, John. you will be late for the class.

A.And B.But C.So D.Or

7、---Was this photo taken in Tibet?

---Yes. You can see beautiful snow mountains in the ______ of the photo.

A.form B.shape

C.background D.Direction

8、Generally speaking, over my career , the harder the course is, ______ I play.

A.well B.better C.the best D.the better

9、— Could I use this dictionary?

—______. It’s a spare one.

A.Good idea. B.Just go ahead. C.Not at all. D.Y ou’d better not.

10、Not only my friends but also I interested in football and Messi is our favorite star.

A.are B.be C.is D.am

Ⅱ. 完形填空

11、Almost everyone knows Ma Yun. He became one of the 1 men in China when his company Alibaba went on the stock(股票)market in 2014.What an amazing thing it is! Here are some stories about him on the way to 2

Ma Yun made his first trip to the US in 1995 and used the Internet for the first time. After searching

for "beer", he found that 3 results came up about Chinese beer. Then he searched for "China" and still found no results. He decided to 4 a Chinese website. From then on, Alibaba was born.

Ma Yun said he suffered many failures in his life. He 5 the College Entrance Examination in China two times and few companies offered him jobs, including one at KFC.And he 6 by the famous Harvard University 10 times.

Because of the poor conditions, learning English was not easy when Ma Yun was a teenager .But he found a good way to learn English well 7 giving tourists free guides in Hangzhou. He kept it for nine years. Ma Yun said that tourists opened up a new world for him. Everything they said and did was so different from 8 he had been taught at school and by his parents.

Ma Yun is the very person who never gives up. In 2015,he made a 9 at the World Economic Forum in Davos. He said, "Life is 10 challenges. You never know what you are going to get tomorrow."

Do as Ma Yun does.Follow your dream and your dream will come true one day.

1.A.strangest B.funniest C.richest D.strongest

2.A.power B.health C.success D.mystery

3.A.no B.any C.some D.many

4.A.set up B.take up C.get up D.show up

5.A.passed B.failed C.compared D.influence

6.A.was cheated B.was treated C.was accepted D.was refused

7.A.in B.by C.of D.with

8.A.what B.that C.which D.how

9.A.mistake B.difference C.decision D.speech

10.A.sure of B.full of C.proud of D.afraid of

Ⅲ. 语法填空

12、阅读下面对话,在空白处填入恰当的词,或填入括号中所给单词的正确形式(最多不超过3个)。

I used to be full 1.passion and imagination. In my childhood, I dreamed of 2.(build) a castle with thousands of red roses. I also dreamed of travelling around the world to enjoy different cultures.

But my dream3.(change) already. My dream not only focuses on 4.(my),but also on helping the staving(饥饿的) and 5.(home)people who are now living on the 6.(alone) island of poverty.

I am glad to see my dream change. To me, a dream is the light at the end of tunnel and the sunrise of the new day. It gives me the courage and strength to keep on, overcome the challenges and achieve my 7.(goal).

I don’t know how my dream can come true, 8.I do know it will come true as long as I continue to pursue (追求) it. I will keep my dream in my heart, study hard and be ready to do 9.I can to help staring and poor people. I believe, one day, we will all live in a place of justice(正义)and 10.(happy), where laughter is

the language of the world.

Ⅳ. 阅读理解

A

13、My sister Alli and I have been trying to get people to stop dropping cigarette butts(烟蒂) for seven years. One day, we were walking in our hometown and saw hundreds of cigarette butts on the ground. They made the town look so ugly that we decided to start a group to make people stop dropping butts. We called it “No Butts About It”. At first, we drew pictures with “The Earth is Not Your Ashtray(烟灰缸)” written on them. We put the pictures around our hometown---in parks, by beaches, and along roads. We wanted to make people understand that dropping butts hurts the environment. Most smokers d on’t think that dropping butts hurts the earth. But it does! All rubbish does. Later, we wrote to companies and asked them for money to help us. We used the money to buy ashtrays to give smokers. We wanted smokers to carry the ashtrays with them so they di dn’t have to drop butts. At the moment, we are trying to get cigarette companies to put an ashtray in each pack of cigarettes. Some companies want to do it.

Many people have started to join our group since it began. Today there are 45 other “No Butts About It” groups in America. And there are even groups in England, Australia and India! Many newspapers have written about my sister and I over the last seven years. And we have won many prizes for our good work. But we are not interested in prizes. We just want to make the earth a better and cleaner place for animals, plants and people. One day it will be.

1.(小题1)“No Butts About It” started___________

A.seventeen years ago. B.seven years ago.

C.seventy years ago D.It’s not mentioned.

2.(小题2)Why did they start the group?

A.Because they don’t like cigarette.

B.Because they want to make money.

C.Because they want people to know them.

D.Because they want to protect the environment.

3.(小题3)How many “No Butts About It” groups are there in America?

A.7 B.45 C.46 D.49.

4.(小题4)The writer lives in_________

A.America. B.England. C.Australia. D.India.

5.(小题5)What did the writer do the following EXCEPT__________?

A.starting a group called “No Butts About It”

B.writing to companies to ask them for help

C.asking newspapers to write about her sister and her

D.managing to get some cigarette companies to put an ashtray in each cigarette pack

B

14、Have you ever thought about seeing the world for free? Although it may sound impossible, there’s a growing community that is making that dream one step closer.

The community is called Couchsurfing. The idea is that people open their homes up to travelers for free, and in exchange both people will learn from each other.

Instead of paying a lot of money staying in hotels, living with locals is both cheap and authentic(正宗的). Maybe you’ll find a hidden attraction in th e city. It may be a good place where people like to visit. This is also your chance to ask what life in their country is really like.

It also works as a culture exchange. For example,if you play the guitar and your host is a great cook, teach him or her how to play to say thank you for the dinner. This type of exchange is popular.

But what are some manners of being a good Couchsurfer? First, be careful about cultural taboos(禁忌). For example, if you eat with Indians, never use your left hand. In Indian culture, left hands are used for the toilet. Also, when you are going to leave, it’s a good idea to prepare a small gift. This shows your______to the home owner.

Now, are you ready to travel like a local? Where will you surf first?

1.According to the passage, w hat’s the Couchsurfing?

A.A travel way to offer the travelers their homes for free.

B.Offer food to the travelers for free.

C.Show some places of interest for free.

D.Take the travelers to some places in the city for free.

2.What does the underlined word “appreciation ” mean?

A.客气B.准备C.感激D.欣赏

3.What should we do if we eat with Indians?

A.Don’t eat with the right hand.

B.Don’t eat with the left hand.

C.Eat with two hands.

D.Don’t eat with hands.

4.What’s the main idea of the passage?

A.Hidden city.

B.Surfing on the Internet.

C.A community in the city.

D.A cheap way to travel and manners.

C

15、C

Why are you study habits different from those of your friends? Why do you seem to learn faster in some classes while more slowly in others? One reason you may not know is that people have different types. Scientists say there are three different learning types: Visual(视觉型),Auditory(听觉型),and Kinesthetic (动觉型)。

Visual learners learn best by seeing. If you seem to easily remember information from pictures, graphs(图表),and videos, you are probably a visual learner. You’re not good at copying down what the teacher says in class. Never mind. You can draw graphs or pictures instead, if you find that works better for you. Auditory learners learn best by hearing. If you seem to easily remember things by hearing them, then you are probably an auditory learner. You must listen carefully while the teacher is speaking because it’s the easiest way for you to learn . Sometimes you may find that taking notes tops you from listening carefully. After class, you can write down what you remember or borrow your friend’s notes to copy.

Kinesthetic learners learn best by doing. If you seem to learn best by working with your hands, you are probably a kinesthetic learner. Taking notes by writing can make you pay close attention to information as you receive it. Of course, you can learn best by making full use of labs or other class activities.

Hope you learn better by knowing what your personal learning type is.

1.There are____________ different learning types according to the passage.

A.two B.three C.four D.five

2.Jude can remember the words of a song quickly by listening to it once or twice. She might be a /an

____________ according to the passage.

A.auditory learner B.visual learner

C.strange leaner D.usual learner

3.Kinesthetic learners learn best by ____________

A.Remembering information from videos B.listening teachers in class

C.drawing graphs or pictures D.doing things with their hands

4.The best title of this passage may be “____________”

A.Study Habits B.Ways to study

C.Learning types D.Reasons to lear

D

16、Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.

You probably know how to ride a bike safely. Now learn to use a computer safely.

Your eyes

Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least

50cm from the screen. Remember to look away from it sometimes. This gives your eyes a rest.

When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect(反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.

Your hands and wrists(手腕)

Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these rules: ①Rest your wrists on something. ②Keep your elbows at the same height as the keyboard. ③Stop sometimes and exercise your hands, wrists and fingers in a different way.

Your back

Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Y our forearms, wrists, hands and the upper part of your legs should all the parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck. 1.A computer screen may injure your eyes if __________.

A.you sit 60cm away

B.your eyes are too close to it

C.the window is on your left or right

2.Hand and wrist injuries are caused when you __________.

A.move in the same way again and again

B.rest your wrists on something

C.keep your elbows as high as the keyboard

3.When using a computer, your eyes and hands will be safe if you __________.

A.work near a window

B.work for a long time

C.take rests at times

4.It is good for your back and neck if you sit __________.

A.for many hours

B.in the right way

C.with the screen below your eyes

5.What would be the best title for the text?

A.How to Use a Computer Safely

B.How to Keep your Hands and Wrists Safe

C.How to Protect your Eyes and your Back

E

17、Captain James Cook was a great explorer. Before he started exploring, maps of the Pacific Ocean were almost empty. He visited hundreds of islands across the Pacific Ocean and put them in the correct places on the map. He made maps of the coastlines of Australia and New Zealand. James Cook was born in England in 1728. His parents were poor farm workers. When James was 18, he found a job on a coastal ship. He worked on the ship until he was 27 years old, and then he joined the navy. He fought in Canada in a war against France, and he mapped some of the eastern coasts of Canada. In 1768, King George made him Captain(船长) of a ship and sent him to the Pacific. He was gone for nearly three years. When he returned, he was regarded as a national hero.

He started his third journey in 1776. On this trip he visited Hawaii. He was the first European to set foot on this beautiful island. Then he mapped the western coast of North America. After that he returned to Hawaii. Unluckily, there was some trouble between the Hawaiians and the white men and they started fighting. In the end, Captain was killed in a fight against the local.

1.(小题1)In which order did James Cook do the following things?

a. Fought against France.

b. Mapped the western coast of North America.

c. Was made Captain of a ship.

d. Worked on a coastal ship.

A.a c d b B.d a c b

C.b a d c D.d c a b

2.(小题2)He started exploring when _______.

A.he worked on a coastal ship

B.he was 18 years old

C.he was sent to the Pacific

D.he served in the navy

3.(小题3)He was considered a national hero because of _______.

A.his experience in Canada

B.his being the first European to visit Hawaii

C.his heroic death

D.his devotion to exploration on the Pacific Ocean

4.(小题4)Captain Cook was killed by _______.

A.his sailors B.the Hawaiians

C.the Canadians D.the French

F

18、Next time you make yourself a hot cup of tea or coffee,you might want to let it cool down a bit before drinking.

Researchers say letting your hot drinks cool off could help you avoid some kinds of cancer. Researchers at the International Agency for Research on Cancer (IARC) found evidence that drinks at temperatures above 65 degrees Celsius, when swallowed, can cause cancer of the esophagus (食道). The researchers examined findings from other studies where tea and coffee were often served at 70degrees Celsius or above. Those studies were completed in Iran, China and South America.

In developed countries, health experts have linked esophageal cancer to smoking and alcoholic drinks. However, this form of cancer is more common in areas where people drink beverages at very high temperatures.

In Europe and the United States, many people drink coffee and tea at temperatures around 60degrees Celsius. And they often add milk which lowers the temperature considerably. However,tea﹣drinkers in Iran and mate﹣drinkers in South America often enjoy their beverages at closer to 70degrees Celsius.

The researchers note that South Americans not only drink their mate very hot,they also drink it through a metal straw. This sends the scalding liquid directly into the throat.

The findings, however, are good news for coffee drinkers. In 1991, the World Health Organization listed coffee as possibly carcinogenic (致癌的). WHO officials have since changed their position on that listing. They now suggest that the temperature of your hot drink is a greater risk factor than the actual drink itself.

The results suggest that drinking very hot beverages is one probable cause of esophageal cancer and that it is the temperature, rather than the drinks themselves, that appears to be responsible.

1.What might be the cause of esophageal cancer in developed countries?

A.Smoking. B.Alcoholic drinks. C.Unhealthy vegetables. D.Hot drinks.

2.Where do tea﹣drinkers like adding milk?

A.In China. B.In Iran. C.In South America. D.In Europe.

3.What does the underlined word “scalding” in paragraph 5 mean?

A.Sweet. B.Hot. C.Sour. D.Harmful.

4.What is the best title for the passage?

A.Cool it Down before Drinking B.Hot Drinks Are Still Popular

C.Hot Drinks Linked to Cancer D.Tea or Coffee, a Different Choice.

Ⅴ.书面表达

19、书面表达

在本周班会课上,同学们对“初中生什么时候放学比较合适?”这一问题进行了热烈的讨论。大部分同学认

为初中生应该在5点左右放学,下表所列里大家的发言记录。请你写一篇短文介绍大家的想法并阐述你的观点。

注意:(1)短文必须包括表格中所有要点,并适当发挥;文中不得出现真实的人名和校名;词数:80-100;短文开头仅供参考,不计入总词数。

短文开头:“What time should junior high school students leave school?” This week we have held a class meeting to talk about it. Here is the result of the discussion.

___________________________________________________________________________________________ ___________________________________________________________________________________________

参考答案

Ⅰ. 单项选择

1、A

2、B

3、C

4、B

5、C

6、D

7、C

8、D

9、B

10、D

Ⅱ. 完形填空

11、1.C

2.C

3.A

4.A

5.B

6.D

7.B

8.A

9.D

10.B

Ⅲ. 语法填空

12、1.of 2.building

3.has changed 4.myself 5.homeless 6.lonely

7.goals

8.but

9.whatever 10.happiness

Ⅳ. 阅读理解

13、1.2.B 3.4.D

5.【小题3】C

【小题4】【小题4】A 【小题5】【小题5】C 14、1.A

2.C

3.B

4.C

15、1.B

2.A

3.D

4.C

16、1. B

2. A

3. C

4. B

5. A

17、1.2.B 3.4.D

【小题3】【小题3】D

2019年中考数学模拟冲刺试卷及答案

2019年中考数学模拟冲刺试卷及答案 本试卷分试题卷和答题卷两部分,试卷共6页,答题卷共6页,满分150分。考试时间120分钟。 注意事项: 1. 答题前,考生务必将自己的姓名、考号用0.5mm 黑色墨水签字笔填写在答题卡上,并核对相关信息是否一致。 2. 选择题使用2B 铅笔填涂在机读卡对应题目标号的位置上,非选择题用0.5mm 墨水签字笔书写在答题卷的对应位置。答在草稿纸、试卷上答题无效。 3. 考试结束后,将试题卷、答题卷、草稿纸一并交回。 一.选择题(本大题共12小题,每小题3分,共36分.在每小题所给出的四个选项中,只有 一项是正确的,请用2B 铅笔把答题卡上相应的选项标号涂黑...............) 1.16的平方根是( ) A.4 B.-4 C.±4 D.±8 2.下列运算正确的是( ) A .743)(x x = B .532)(x x x =?- C .34)(x x x -=÷- D. 23x x x += 3.下列美丽的图案,既是轴对称图形又是中心对称图形的个数是( ) A.1个 B.2个 C.3个 D.4个 4.如图,桌面上有一个一次性纸杯,它的俯视图应是( ) 5.某学习小组为了解本城市500万成年人中大约有多少人吸烟,随机调查了50个成年人,结果其中有10个成年人吸烟.对于这个数据收集与处理的问题,下列说法正确的是( ) A.该调查的方式是普查 B.本地区只有40个成年人不吸烟 A B C D

C.样本容量是50 D.本城市一定有100万人吸烟 6 杭州银泰百货对上周女装的销售情况进行了统计,如下表所示: 颜色 黄色 绿色 白色 紫色 红色 数量(件) 100 180 220 80 550 经理决定本周进女装时多进一些红色的,可用来解释这一现象的统计知识是( ) A .平均数 B . 众数 C .中位数 D .方差 7.两圆的半径分别为3和7,圆心距为7,则两圆的位置关系是( ) A. 内切 B.相交 C.外切 D.外离 8.在△ABC 中,D 、E 分别是边AB 、AC 的中点,若BC =5,则DE 的长是( ) A.2.5 B.5 C.10 D.15 9.如右图,一次函数y =kx +b 的图象经过A 、B 两点, 则不等式kx +b < 0的解集是( ) A.x <0 B. 0< x <1 C.x <1 D. x >1 10.某剧场为希望工程义演的文艺表演有60元和100元两种票价,某团体需购买140张, 其中票价为100元的票数不少于票价为60元的票数的两倍,则购买这两种票最少共需要( ) A.12120元 B.12140元 C.12160元 D.12200元 11.若2-=+b a ,且a ≥2b ,则( ) A.a b 有最小值21 B.a b 有最大值1 C.b a 有最大值2 D.b a 有最小值9 8- 12.在矩形ABCD 中,有一个菱形BFDE (点E ,F 分别在线段AB ,CD 上),记它们的 面积分别为ABCD S 和BFDE S ,现给出下列命题: ①若 2 32+= BFDE ABCD S S ,则33 tan =∠EDF ; ②若EF BD DE ?=2,则DF=2AD.则( ) A. ①是真命题,②是真命题 B. ①是真命题,②是假命题 A B O y x 1 2 y =kx +b

2008年江西省南昌市中考数学试题及答案(word版)

江西省南昌市2008年初中毕业暨中等学校招生考试 数学试题卷 说明:1.本卷共有五个大题, 25个小题;全卷满分120分;考试时间120分钟. 2.本卷分为试题卷和答题卷,答案要求写在答题卷上,不得在试题卷上作答,否则不给分. 一、选择题(本大题共8小题,每小题3分,共24分); 每小题只有一个正确的选项,请把正确选项的代号填涂在答题卡的相应位置上. 1.1 5 -的相反数是( ) A .5 B .5- C .15 - D . 15 2.不等式组213 1 x x -

2020年中考数学名校全真模拟卷(三)(学生版)

2020年中考数学名校全真模拟卷(三) (考试时间:120分钟 满分:150分) 班级:________ 姓名:________ 得分:________ 一、选择题(本大题共10个小题,每小题3分,共30分) 1.在-2,-1,0,1 3这四个数中,正数是( ) A.13 B .0 C .-1 D .-2 2.下列图是由5个大小相同的小立方体搭成的几何体,主视图和左视图相同的是( ) 3.下列计算正确的是( ) A.????-132+????120=76 B.8-2= 6 C .a 3+a 2=a 5 D .(-a 3)2=a 6 4.在菱形ABCD 中,∠ABC =60°,若AB =3,菱形ABCD 的面积是( ) A.9 2 3 B .8 3 C.9 2 5 D.94 5 5.一个不透明的袋子中装有除颜色外其余均相同的2个白球,n 个黑球.随机地从袋子中摸出一个球,记录下颜色后,放回袋子中并摇匀.大量重复试验后,发现摸出白球的频率稳定在0.2附近,则n 的值为( ) A .2 B .4 C .8 D .10 6.如图,已知正五边形ABCDE 内接于⊙O ,连接BD ,则∠ABD 的度数是( ) A .60° B .70° C .72° D .144° 第6题图 第9题图 第10题图 7.小刚家2019年和2020年的家庭支出情况如图所示,则小刚家2020年教育方面支出的金额比2019年增加了( )

A .0.216万元 B .0.108万元 C .0.09万元 D .0.36万元 8.如图,数轴上A ,B 两点所表示的数互为相反数,则关于原点的说法正确的是( ) A .在点 B 的右侧 B .在点A 的左侧 C .与线段AB 的中点重合 D .位置不确定 9.如图,在?ABCD 中,以点A 为圆心,以适当长度为半径作弧分别交AB ,AD 于点E ,F ,再分别以点E ,F 为圆心,大于EF 一半的长度为半径作弧,两弧交于一点H ,连接AH 并延长交DC 于点G ,若AB =5,AD =4,则CG 的长为( ) A .1 B .2 C .3 D .4 10.如图,在平面直角坐标系中,已知点A (-1,4),B (2,1),直线AB 与x 轴和y 轴分别交于点M ,N ,若抛物线y =x 2-bx +2与直线AB 有两个不同的交点,其中一个交点在线段AN 上(包含A ,N 两个端点),另一个交点在线段BM 上(包含B ,M 两个端点),则b 的取值范围是( ) A .1≤b ≤5 2 B .b ≤1或b ≥5 2 C.52≤b ≤11 3 D .b ≤52或b ≥11 3 二、填空题(本大题共5个小题,每小题4分,共20分) 11.若分式|x|-4 4-x 的值为0,则x =__ _. 12.如图,根据函数图象回答问题:方程组? ????y =kx +3, y =ax +b 的解为 . 第12题图 第14题图 13.袋中装有6个黑球和n 个白球,经过若干次试验,发现“若从袋中任摸出一个球,恰是黑球的概率为3 4”, 则这个袋中白球大约有 个. 14.如图,在边长为a 的正方形ABCD 中,分别以A ,B 为圆心,以a 为半径作弧交对角线于F ,E 两点,AE ︵ ,

【冲刺卷】数学中考模拟试卷含答案

【冲刺卷】数学中考模拟试卷含答案 一、选择题 1.如图A,B,C是上的三个点,若,则等于() A.50°B.80°C.100°D.130° 2.如图,在平面直角坐标中,正方形ABCD与正方形BEFG是以原点O为位似中心的位 似图形,且相似比为1 3 ,点A,B,E在x轴上,若正方形BEFG的边长为12,则C点坐 标为() A.(6,4)B.(6,2)C.(4,4)D.(8,4) 3.三张外观相同的卡片分别标有数字1,2,3,从中随机一次性抽出两张,则这两张卡片上的数字恰好都小于3的概率是() A.1 9 B. 1 6 C. 1 3 D. 2 3 4.某球员参加一场篮球比赛,比赛分4节进行,该球员每节得分如折线统计图所示,则该球员平均每节得分为() A.7分B.8分C.9分D.10分 5.等腰三角形的两边长分别为3和6,则这个等腰三角形的周长为() A.12 B.15 C.12或15 D.18 6.如图,在平面直角坐标系中,菱形ABCD的顶点A,B在反比例函数 k y x =(0 k>,

x )的图象上,横坐标分别为1,4,对角线BD x ∥轴.若菱形ABCD的面积为45 2 , 则k的值为() A.5 4 B. 15 4 C.4D.5 7.如图,长宽高分别为2,1,1的长方体木块上有一只小虫从顶点A出发沿着长方体的外表面爬到顶点B,则它爬行的最短路程是() A.10B.5C.22D.3 8.将两个大小完全相同的杯子(如图甲)叠放在一起(如图乙),则图乙中实物的俯视图是(). A.B.C.D. 9.将一块直角三角板ABC按如图方式放置,其中∠ABC=30°,A、B两点分别落在直线m、n上,∠1=20°,添加下列哪一个条件可使直线m∥n( ) A.∠2=20°B.∠2=30°C.∠2=45°D.∠2=50°

安徽初三中考语文模拟试题及答案

安徽初三中考语文模拟试题及答案安徽初三中考语文模拟试题及答案 一、积累与与运用(共7小题,28分) 1,下列加点字注音不正确的一项是()(2分) A.贮蓄(zhù)黄晕(yùn)阻遏(è)绯红(fēi) B.迸溅(bèng)殷红(yīn)恣睢(zì)蓬蒿(hāo) C.潺潺(chán)吞噬(shì)阔绰(chuò)苋菜(xiàn) D.镂空(lòu)胚胎(pēi)黝黑(yǒu)譬喻(pì) 2.下列词语书写全部正确的一项是()(2分) A.诀别感概嶙峋锋芒毕露 B,琐屑妖娆取缔语无轮次 C.亵渎商酌藉贯重峦叠嶂 D.推崇禁锢恻隐唯唯连声 3.下列句中加点的成语使用不恰当的一项是()(2分) A.端午节包粽子、插艾叶、赛龙舟等传统习俗,已在我们的头脑中根深蒂固。 B.在第五届国际矿博会上,当看到世界最大碧玺“长征火箭”时,我的脚步戛然而止。 C.5月22曰,恐怖分子在英国曼彻斯特了骇人听闻的恐怖袭击,造成22死59伤。

D.张大爷是个棋迷,连走路、吃饭、睡觉都在琢磨棋谱,真是乐此不疲。 4.下列句子没有语病的一项是()(2分)^^^ A.经过近二十年的不懈努力,我国首次海域可燃冰试采成功。 B.能否杜绝餐桌上的浪费,关键在于人们的正确认识和自觉行为。 C.“扶贫楷模”王新法同志的感人事迹被报道后,在全社会迅速引发了巨大反映。 5.下列句子组成语段,顺序排列正确的一项是()(2分) ②这种条理性和有序性正是内心满足感的主要来源 ④而守时可以减缓甚至消除因时间不确定带来的焦虑 ⑤现代人普遍患有“时间焦虑症” A.②③⑤④① B.③②⑤④① C.③②①⑤ D.③⑤②④① 中国是礼仪之邦,礼仪文化历史悠久,博大精深。为弘扬中国的礼仪文化,学校准备举行“礼文化”为主题的活动,请你参加。 【礼仪板报我设计】 (1)为营造浓厚的礼仪文化氛围,你班准备出一期以“礼仪”为 主题的黑板报,请身为宣传委员的你设计三个版块名称。(3分) ①②③ 【礼貌用语我知晓】 (2)从括号中选出恰当的词语填人横线。(3分) 你被评为校“礼仪之星”,学校委托你邀请市礼仪专家梁教授来校讲座。 见面时,你会说:“梁教授,①(久违、久仰)大名!”

2020年中考数学名校模拟卷(二)(教师版)

2020年中考数学名校全真模拟卷(二) (考试时间:120分钟 满分:150分) 班级:________ 姓名:________ 得分:________ 一、选择题(本大题共10个小题,每小题4分,共40分) 1.下列四个数中,最小的数是( C ) A .-2 B .(-2)0 C.??? ?-13-1 D .- 3 2.截至2019年4月10日,黔南全州蓄水量为84 327 000 m 3,将数据84 327 000用科学记数法表示为( B ) A .0.843 27×108 B .8.432 7×107 C .8.432 7×108 D .84 327×103 3.如图,立体图形的左视图是( A ) 4.下列全国各地地铁标志图中,既是轴对称图形又是中心对称图形的是( C ) 5.下列计算正确的是( D ) A .2x +3y =5xy B .(m +3)2=m 2+9 C .(xy 2)3=xy 6 D .a 10÷a 5=a 5 6.下列等式正确的是( B ) A. (-4)2=-4 B.3 -53=-5 C.12a 3b(b <0)=2a 3ab D.41 2 =212 7.如图,已知AE =CF ,∠AFD =∠CEB ,那么添加下列一个条件后,仍无法判定△ADF ≌△CBE 的是( B )

A .∠A =∠C B .AD =CB C .BE =DF D .AD ∥BC 8.从1,2,3,4四个数中随机选取两个不同的数,分别记为a ,c ,则关于x 的一元二次方程ax 2+4x +c =0有实数解的概率为( C ) A.14 B.13 C.12 D.23 9.若点A (-3,y 1),B (-2,y 2),C (1,y 3)都在反比例函数y =-12 x 的图象上,则y 1,y 2,y 3的大小关系是( B ) A .y 2<y 1<y 3 B .y 3<y 1<y 2 C .y 1<y 2<y 3 D .y 3<y 2<y 1 10.如图,在矩形ABCD 中,AB =8,BC =12,点E 为BC 的中点,将△ABE 沿AE 折叠,使点B 落在矩形内点F 处,连接CF ,则CF 的长为( D ) A.16 5 B.18 5 C.24 5 D.365 第10题图 第13题图 二、填空题(本大题共10个小题,每小题3分,共30分) 11.一组数据:5,2,4,5,3,2,5的众数是__5__. 12.分解因式:x 3-2x 2y +xy 2=__x (x -y )2__. 13.已知:如图,在△ABC 中,AB =AC ,∠C =72°,BC = 5.以点B 为圆心,BC 为半径画弧,交AC 于点D ,则线段AD 的长为 5 . 14.已知?????x =3,y =-2是方程组?????ax +by =2,bx +ay =-3 的解,则a +b 的值是__-1__. 15.小慧去花店购买鲜花,若买5支玫瑰和3支百合,则她所带的钱还剩下10元;若买3支玫瑰和5支百合,

2017年中考数学模拟冲刺卷 03(河南卷考试版)

【密卷】2017年河南中考模拟冲刺卷(三) 数学 (考试时间:100分钟试卷满分:120分) 注意事项: 1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 2.回答第Ⅰ卷时,选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案标号。写在本试卷上无效。3.回答第Ⅱ卷时,将答案写在答题卡上。写在本试卷上无效。 4.考试结束后,将本试卷和答题卡一并交回。 第Ⅰ卷 一、选择题(本大题共10个小题,每小题3分,共30分.在每小题给出的四个选项中,只有一个选项是符合题目要求的) 1. 3 4 -的相反数是 A. 3 4 -B. 4 3 -C. 3 4 D.4 3 2.人类的遗传物质是DNA,DNA是一个很长的链,最短的22号染色体也长达30000000个核苷酸,数据30000000用科学记数法表示为 A.30×104B.3×107 C.0.3×107 D.3×108 3.下列图形中,既是轴对称图形,又是中心对称图形的是 A.B.C.

D . 4.下列计算正确的是 A .822-= B .()236-= C .42232a a a -= D .()2 35a a -= 5.下列说法中不正确的是 A .函数y =2x 的图象经过原点 B .函数y =1x 的图象位于第一、三象限 C .函数31y x =-的图象不经过第二象限 D .函数3y x =- 的值随x 的值的增大而增大 6.如图所示,将一个含30°角的直角三角板ABC 绕点A 旋转,使得点B ,A ,C ′在同一条直线上,则三角板ABC 旋转的角度是 A .90° B .60° C .150° D .120°7.某班10名学生校服尺寸与对应人数如下表所示: 尺寸(cm ) 160 165 170 175 180 学生人数(人) 1 3 2 2 2 则这10名学生校服尺寸的众数和中位数分别为 A .165,165 B .165,170 C .170,165 D .170,170 8.如图,△ABC 中,D 为AB 上一点,E 为BC 上一点,且AC =CD =BD =BE ,∠A =50°,则∠CDE 的度数为 A .50° B .51° C .51.5° D .52.5° 9.已知抛物线2y ax bx c =++(0b a >>)与x 轴最多有一个交点,现有以下四个结论: ①该抛物线的对称轴在y 轴左侧; ②关于x 的方程220ax bx c +++=无实数根;

2013年江西省南昌市中考数学试卷及答案(Word解析版)

2013年江西省南昌市中考数学试卷 参考答案与试题解析 一、选择题(本大题共12小题,每小题3分,满分36分)每小题只有一个正确选项。 1.(3分)﹣1的倒数是() A.1B.﹣1 C.±1 D.0 考点:倒数. 分析:根据倒数的定义,得出﹣1×(﹣1)=1,即可得出答案. 解答:解:∵﹣1×(﹣1)=1, ∴﹣1的倒数是﹣1. 故选:B. 点评:此题主要考查了倒数的概念及性质.倒数的定义:若两个数的乘积是1,我们就称这两个数互为倒数. 2.(3分)下列计算正确的是() A.a3+a2=a5B.(3a﹣b)2=9a2﹣b2C.(﹣ab3)2=a2b6D.a6b÷a2=a3b 考点:完全平方公式;合并同类项;幂的乘方与积的乘方;整式的除法. 分析:根据同类项的定义,完全平方公式,幂的乘方以及单项式的除法法则即可判断. 解答:解:A、不是同类项,不能合并,选项错误; B、(3a﹣b)2=9a2﹣6ab+b2,故选项错误; C、正确; D、a6b÷a2=a4b,选项错误. 故选C. 点评:本题考查了幂的运算法则以及完全平方公式,理解公式的结构是关键. 3.(3分)某单位组织34人分别到井冈山和瑞金进行革命传统教育,到井冈山的人数是到瑞金的人数的2倍多1人,求到两地的人数各是多少?设到井冈山的人数为x人,到瑞金的人数为y人.下面所列的方程组正确的是() A.B.C.D. 考点:由实际问题抽象出二元一次方程组. 分析:设到井冈山的人数为x人,到瑞金的人数为y人,根据共34人进行革命传统教育,到井冈山的人数是到瑞金的人数的2倍多1人,即可得出方程组. 解答:解:设到井冈山的人数为x人,到瑞金的人数为y人, 由题意得:. 故选B. 点评:本题考查了有实际问题抽象出二元一次方程组,难度一般,关键是读懂题意设出未知数找出等量关系.

2019年最新版北京广州上海衡水黄冈名校初中中考数学模拟试卷626681

初中数学模拟测试 学校:__________ 姓名:__________ 班级:__________ 考号:__________注意事项: 1.答题前填写好自己的姓名、班级、考号等信息 一、选择题 1.如图,在△ABC 中,AB=AC=5,BC=6,点M 为BC 中点,MN ⊥AC 于点N ,则MN 等于( ) A .65 B . 95 C . 125 D . 165 2.若||a a >- ,则a 的取值范围是( ) A .0a > B .0a ≥ C .0a < D .D. 自然数 3.下列运算正确的是( ) A .0(3)1-=- B .236-=- C .9)3(2-=- D .932-=- 4.下列成语所描述的事件是必然发生的是( ) A . 水中捞月 B . 拔苗助长 C . 守株待免 D . 瓮中捉鳖 5.下列各式中,不能.. 继续分解因式的是( ) A .22862(43)xy x xy x -=- B .113(6)22x xy x y -=- C .3224844(+21)x x x x x x ++=+ D .221644(41)x x -=- 6. 下图中,正确画出△ABC 的AC 边上的高的是( ) A . B . C . D . 7. 下列长度的三条线段不能.. 组成三角形的是( ) A .1,2,3 B .2,3,4 C .3,4,5 D .4,5,6 8.己在△ABC 中,∠A=55°,∠C=42°,则∠B 的 数为( ) A . 42° B .55° C .83° D .97° 9.如图,从下列四个条件:①BC=B ′C ,②AC=A ′C ,③∠A ′CA =∠B ′CB ,④ AB=A ′B ′中,任取三个为条件,余下的一个为结论,则最多可以构成正确结论的个数是( ) A M N C B

【冲刺卷】中考数学模拟试卷(及答案)

【冲刺卷】中考数学模拟试卷(及答案) 一、选择题 1.如图,矩形ABCD中,AB=3,BC=4,动点P从A点出发,按A→B→C的方向在AB 和BC上移动,记PA=x,点D到直线PA的距离为y,则y关于x的函数图象大致是() A.B. C.D. 2.下列几何体中,其侧面展开图为扇形的是( ) A.B.C.D. 3.在“朗读者”节目的影响下,某中学开展了“好书伴我成长”读书活动.为了解5月份八年级300名学生读书情况,随机调查了八年级50名学生读书的册数,统计数据如下表所示: 册数01234 人数41216171 关于这组数据,下列说法正确的是() A.中位数是2 B.众数是17 C.平均数是2 D.方差是2

4.某商店有方形、圆形两种巧克力,小明如果购买3块方形和5块圆形巧克力,他带的钱会差8元,如果购买5块方形和3块圆形巧克力,他带的钱会剩下8元.若他只购买8块方形巧克力,则他会剩下()元 A.8B.16C.24D.32 5.肥皂泡的泡壁厚度大约是0.0007mm,0.0007用科学记数法表示为() A.0.7×10﹣3B.7×10﹣3C.7×10﹣4D.7×10﹣5 6.点 P(m + 3,m + 1)在x轴上,则P点坐标为() A.(0,﹣2)B.(0,﹣4)C.(4,0)D.(2,0) 7.下列命题中,真命题的是() A.对角线互相垂直的四边形是菱形 B.对角线互相垂直平分的四边形是正方形 C.对角线相等的四边形是矩形 D.对角线互相平分的四边形是平行四边形 8.如图,是由四个相同的小正方体组成的立体图形,它的左视图是() A.B.C.D. 9.如图中的几何体是由一个圆柱和个长方体组成的,该几何体的俯视图是( ) A.B.C.D. 10.若正比例函数y=mx(m≠0),y随x的增大而减小,则它和二次函数y=mx2+m的图象大致是()

最新最新人教版九年级语文中考模拟考试试卷及答案

精品文档 精品文档 九年级语文试卷 (考试时间:120分钟;卷面分值:150分) 一基础知识与运用(25分) 1.选出下列词语在加点字的字音、字形完全正确的一项是()(2分) A.贮.藏(zhù)屏障.(zhàng)提.防(dī)空穴.来风(xuè) B.琴弦.(xián)褴.褛(lán)蓓蕾.(lěi)人才济济.(jǐ) C.蝙.蝠(biān)冒.然(mào)狭窄.(zǎi)相形见绌.(chù) D.创.伤(chuāng)笨拙.(zhuō)症.结(zhèng)一泄.千里(xiè) 2.字词积累——给加点的字注音,根据拼音写汉字。(4分) 节日里的遵义老城,宛如一位美丽的新娘,袅娜.()多姿;湘江河如一条流光溢彩的腰带,蜿yán( 曲折;岸边一幅幅讲述长征故事的浮雕,仿佛把我们带入了千军万马的年代;jí()使岸上古老的téng(蔓,在彩灯映照下,也褶褶生辉。 3.下列句子中加点的成语运用恰当的一项是()(2分) A.孩子向家长倾吐心声时,家长应洗耳恭听 ....,这是家庭沟通中特别需要注意的地方。 B.“生命的价值在于厚度而不在于长度.在于奉献而不在于素质……”校长的一番高谈阔论 .... 育。 C.一连下了好几天雨,操场上拖泥带水 ....的。 D.我们坚信教育可以成为一件美好的、慢的、自然而然发生的,不再是急功近利 ....追求结果的事情。 4.下列句子中没有语病的一项是()(2分) A.2017年5月26日以“数据创造价值,创新驱动为来”为主题的中国国际大数据产业博览会在贵阳开幕。B.在暑假的户外活动中,同学们要注意安全,防止不要发生意外事故。 C.由于受阴天阴雨天气影响,使得部分地区的天文爱好者没能欣赏到“金星凌日”的奇观。 D.学校开展与策划的经典诵读活动,对于提升学生的语文核心素养有着重要作用。 5.下列句子中标点符号使用正确的一项是()(2分) A.你在人生中遭遇拒绝和障碍时,想想以下这种可能,不逃跑,并多问一句为什么。 B.我们是十四、五岁金色少年具有远大的志向和目标。 C.农谚曰:“寒露一到百草枯,”表明此时气温已经降到限制农作物生长的极限。 D.一代美学宗师朱光潜曾翻译近代第一部社会科学著作——维科的《新科学》。 6、下列关于名著及文学常识的表述,有误的一项是( )(2分) A 成了麻木、狡猾、好占便宜的行尸走肉。样子的这一变化正无情地批判了当时的社会现实——它不让好人有出路。 B、《朝花夕拾》是鲁迅回忆童年、少年和青年时期不同生活经历与体验的一部散文集,《从百草园到三味书屋》《狗·猫·《琐记》《藤野先生》等都是其中的作品。 C 溅鸳鸯楼,火烧瓦罐寺。 D、《钢铁是怎样炼成的》一书中,保尔在朱赫来的影响下,走上革命道路。 7.依次填入下面句子横线处的词语最恰当的一项是()(2分) 每一条河流都是一曲古老的赞歌,唱出了远古文明的() 象万马奔腾、()的壮丽景象。让我们迈开脚步,打开(),投入大自然的()。 A.光芒一碧万顷心曲怀抱B.辉煌一泻千里心扉怀抱C.光芒一往无前心扉情怀D.辉煌一望无际心曲情怀 8、综合性学习(9分)请参加“与狼共舞”综合性学习活动。 生物视角 奔跑,耐力强,常采用穷追的方式获得猎物。狼属于食肉动物,主要以鹿、羚羊、兔为食,也会食用昆虫、老鼠等,能耐饥。 又过了三天, 愁是辛弃疾笔下 。 _ !其真无马邪? 三团中学2017-2018学年第二学期第二次模拟考试

南昌市中考数学试卷

20XX年江西省南昌市中考数学试卷 一、选择题(共8小题,每小题3分,满分24分) 1、(2009?南昌)在0,﹣2,1,3这四数中,最小的数是() A、﹣2 B、0 C、1 D、3 8、(2009?南昌)二次函数y=ax2+bx+c(a≠0)的图象如图所示,下列结论正确的是() A、ac<0 B、当x=1时,y>0 C、方程ax2+bx+c=0(a≠0)有两个大于1的实数根 D、存 在一个大于1的实数x0,使得当x<x0时,y随x的增式系数的关 系,涉及的知识面比较广. 二、填空题(共8小题,每小题3分,满分24分) 10、(2009?南昌)计算:= . 11、(2009?南昌)若点A在第二象限,且到x轴的距离为3,到y轴的距离为2,则点A的坐标为. 12、(2009?南昌)一个圆锥的底面直径是80cm,母线长是90cm,则它的侧面积是cm2. 三、解答题(共9小题,满分72分) 17、(2009?南昌)化简求值:[(x﹣y)2+y(4x﹣y)﹣8x]÷2x,其中x=8,y=2009. 18、(2009?南昌)解方程: 19、(2010?大田县)某市今年中考理、化实验操作考试,采用学生抽签方式决定自己的考试内容.规定:每位考生必须在三个物理实验(用纸签A、B、C表示)和三个化学实验(用纸签D、E、F表示)中各抽取一个进行考试,小刚在看不到纸签的情况下,分别从中各随机抽取一个. (1)用“列表法”或“树状图法”表示所有可能出现的结果; (2)小刚抽到物理实验B和化学实验F(记作事件M)的概率是多少? 20、(2009?南昌)经市场调查,某种优质西瓜质量为(5±0.25)kg的最为畅销.为了控制西瓜的质量,农科所采用A、B两种种植技术进行试验.现从这两种技术种植的西瓜中各随机抽取20颗,记录它们的质量如下(单位:kg): A: B: (1)若质量为(5±0.25)kg的为优等品,根据以上信息完成下表: (2)请分别从优等品数量、

中考最后冲刺模拟数学试卷(含答案)

中考数学模拟试卷(最后冲刺1) 一、选择题(本大题5小题,每小题3分,共15分)每小题列出的四个选项中,只有一个是正确的) 1.下列式子中结果是负数的是 ( ) A. -(-7); B.-∣-2∣; C. -(-3)3 ; D. 3-2 2.一种细菌的半径是0.000045米,该数字用科学记数法表示正确的是( ). A.5 105.4? B.6 1045? C.5 10 5.4-? D.4.5×10 -4 3.在艺术字中,有些字母是中心对称图形,下面的5个字母中,是中心对称图形的有( ) C Q I N A A. 2个 B. 3个 C . 4个 D. 5个 4.不等式组??? ??≤<-15 112x x x 的解集在数轴上表示正确的是 ( ) 5.图(1),⊙O 的直径AB=10,弦CD ⊥AB 于M ,BM=4,则弦CD 为( ) A.62 B.64 C.215 D.210 二、填空题(本大题共5小题,每小题4分,共20分)把下列各题的正确答案填写在横线上。 6.函数y= 3 1+x 自变量x 的取值范围是 7.因式分解:=+-a ab ab 22 . 8.如果点(45)P -,和点()Q a b ,关于y 轴对称,则a 的值为 9.一组数据1,6,x ,5,9的平均数是5,那么这组数据的中位数是 . 10.方程2 2310--=x x 的两根为1x 、2x ,则12(1)(1)x x --的值为 B C M O A D . 图(1)

三、解答题(一)(本大题5小题,每小题6分,共30分) 11.(本题满分6分)计算:12-4cos30°-(π-1)0+2-1 12.(本题满分6分)解方程: 13.(本题满分6分)先化简代数式22443 (1)11 x x x x -+÷--+,然后选取一个合适..的x 代入求值. 2 1 221-=+--x x x

初三中考语文模拟试题(一)

中考语文模拟试题 https://www.doczj.com/doc/829317131.html, (满分150分,时间120分钟) 班别:姓名:分数: 一.语文积累与运用(1----10题,共25分) 1.下列加点字的注音有错误的一项是() A.玷diàn)污蔑褴褛(lǚ) 偃(yǎn)旗息鼓 B.歼(jiān)灭匀称(chèn) 敝(bì)帚自珍 C.嗤(chī)笑盔(kuēi)甲油光可鉴(jiàn) D.拮(jié)据缄(jiān)默声名狼藉(jí) 2.下列词语中没有别字的一组是[ ](2分) A.不屑置辩无耻谰言虚张声势D.敷衍塞责纵横绝荡错落有致 C为富不仁坦荡如底嗟来之食D.骄生惯养雍容典雅巧妙绝论 3.依次填入下列句中横线上的词,恰当的一组是[ ](2分) (1)(野花)一在草丛里像眼睛,像星星,还贬呀眨的。 (2)语言,也就是说话,是极其稀松平常的事儿,可是仔细想想,实在是一件了不起的大事。 (3)长的草里是不去的,——一相传这园里有一条很大的赤练蛇。 A.开好像因为B.散好像因为 C.散其实所以D.开其实所以 4.下列各句加点词语感情色彩没有变化的一项是[ ](2分) ‘丸在乌云和大海之间,海燕像黑色的闪电,在高傲地飞翔。 n.于是点上一枝烟,再继续写些为“正人君子”之流所深恶痛疾的文字。 C.我用儿童的狡猾的眼光察觉,她爱我们,并没有存心要打的意思。 D.你不以我们的祖国有着这样的英雄而自豪吗? 5.没有语病的一句是[ ](2分) A..语言流畅是衡量文章好坏的重要标准之一。 B.我们要认真克服并随时发现自己的缺点。 C.在老师和同学们的帮助下,使他的成绩有了很大进步。 D.只有坚持不懈的刻苦努力,才能取得优异的成绩。 6.对下列句子的分析,正确的—项是[ ](2分) A.初春时节,杭州市的西湖公园是人们踏青的好地方。(句子主干是:杭州市是地方) B.建国门立交桥竣工:通车。(“建国门”在句中充当主语) C.外面的短衣主顾,虽然容易说话,但唠唠叨叨缠夹不清的也很不少、(这是转折复句) D.我赞美白杨树,就因为它不但象征了北方的农民,尤其象征厂今天我们民族解放斗争中所不可缺少的质朴,坚强,以及力求上进的精神。(这是二重复句,第二层是因果关系) 7.下面搭配正确的一项是[ ](2分) A.心旷神怡——《岳阳楼记》——范仲淹——唐朝 B.讳疾忌医———《扁鹊见蔡桓公》——韩非——战国 C。作奸犯科——《出师表》——司马迁——汉朝 D.醉翁之意不在酒一一—《捕蛇者说》——柳宗元——唐朝 6.根据课文填空。(6分) (1) ,西出阳关无故人。 (2)接天莲叶无穷碧,。

江西省南昌市中考数学试卷及答案

2008年江西省南昌市中考数学试题卷 说明:1.本卷共有五个大题, 25个小题;全卷满分120分;考试时间120分钟. 2.本卷分为试题卷和答题卷,答案要求写在答题卷上,不得在试题卷上作答,否则不给分. 一、选择题(本大题共8小题,每小题3分,共24分); 每小题只有一个正确的选项,请把正确选项的代号填涂在答题卡的相应位置上. 1.1 5 -的相反数是( ) A .5 B .5- C .15 - D . 15 2.不等式组213 1 x x -

无锡市天一实验学校初三数学模拟试题

无锡市天一实验学校初三数学模拟试题 2010.3 注意事项:1.答案一律写在答卷上,写在试卷上无效。 2.请按照题号顺序在各题目的答题区域内作答,超出答题区域书写的答案无效. 一、精心选一选(本大题共有7小题,每小题3分,共21分.) 1.下列计算正确的是 ( ) A. 325 2a a a += B. 32 6 (2)4a a -= C. a 2·a 3=a 6 D. 623a a a ÷= 2. 不等式组213 3 x x +?? >-?≤的解集在数轴上表示正确的是( ) 3.下列调查适合作普查的是( ) A .了解在校大学生的主要娱乐方式 B .了解无锡市居民对废电池的处理情况 C .日光灯管厂要检测一批灯管的使用寿命 D .对甲型H1N1流感患者的同一车厢的乘客进行医学检查 4.用四个全等的矩形和一个小正方形拼成如图1所示的大正 方形,已知大正方形的面积是144,小正方形的面积是4, 若用x ,y 表示矩形的长和宽(x >y ),则下列关系式中不正 确的是 A .x +y =12 . B .x -y =2. C .xy =35. D .x 2 +y 2 =144. 5.图2是由几个相同的小正方体搭成的一个几何体,它的俯视图是( ) 6. 已知33-=-y x ,则y x 35+-的值是( ) A .0 B .2 C .5 D .8 7.如图3,直线3 33 y x = +与x 轴、y 轴分别相交于A B , 两点,圆心P 的坐标为(1 0),,圆P 与y 轴相切于点O .若将圆P 沿x 轴向左移动,当圆P 与该直线相交时,横坐标为整数的点P 的个数是 ( ) A. 2 B. 3 C. 4 D. 5 二、细心填一填(本大题共有12小题,15空, 每空2分,共30分.) -3 1 0 A . -3 1 0 B . -3 1 0 C . -3 1 0 D . 图2 A . B . C . D . O y B A 图3 P 图1 y x

2017年中考数学冲刺模拟卷(1)及答案

2017年中考数学冲刺模拟卷(1)一、单选题(本大题共8个小题,每小题3分,共24分) 1.-9的相反数是() A. 1 9 B. 9 C. 1 9 D. -9 2.在如图的图案中可以看出由图案自身的部分经过平移而得到的是() A. B. C. D. 3.随着行政区划调整,2017年我区计划新建续建主次干道项目25个,全年计划完成交通投资19.79亿元,其中19.79亿元用科学记数法可表示为() A. 1.979×107元 B. 1.979×108元 C. 1.979×109元 D. 1.979×1010元 4.下列语句中错误的是() A. 数字0是单项式 B. 的系数是 C. 单项式xy的次数是2 D. 单项式﹣a的系数和次数都是1 5.不透明袋子中有2个红球、3个绿球,这些球除颜色外其它无差别.从袋子中随机取出1个球,则() A.能够事先确定取出球的颜色B.取到红球的可能性更大 C.取到红球和取到绿球的可能性一样大D.取到绿球的可能性更大 6.下列计算中,正确的是() A.a0=1 B.a﹣1=﹣a C.a3?a2=a5 D.2a2+3a3=5a5 7.已知a﹣b=3,则代数式a2﹣b2﹣6b的值为() A.3 B.6 C.9 D.12 8.Rt△ABC中,AB=AC=2,点D为BC中点.∠MDN=90°,∠MDN绕点D旋转,DM、DN分别与边AB、AC交于E、F两点.下列结论:①(BE+CF)=BC;②S△AEF≤S△ABC;③S四边形AEDF=AD?EF;

④AD≥EF;⑤点A 到线段EF 的距离最大为1,其中正确结论的个数是() A 、1 B 、2 C 、3 D 、4 二、填空题(本大题共10个小题,每小题3分,共30分) 9.分式3 3x x -+的值为零,则x = ____________. 10.因式分解:24xy x -=________. 11.如果点P (﹣2,b )和点Q (a ,﹣3)关于x 轴对称,则a+b 的值是. 12.按照如图所示的操作步骤,若输入的值为2,则输出的值为__________. 13.初四二班的“精英小组”有男生4人,女生3人,若选出一人担任组长,则组长是男生的概率为__________. 14.已知关于x 的一元二次方程x 2-3x +1=0的两个实数根为1x 、2x ,则()()1211x x --的值为_________. 15.若关于x 的反比例函数1m y x -=的图象位于第二、四象限内,则m 的取值范围是____ 16.已知直角三角形的两条直角边长为3,4,那么斜边上的中线长是________. 17.一个圆锥的高为3,侧面展开图是半圆,则圆锥的侧面积是_________ 18.在平面直角坐标系中,点O 为坐标原点,A 、B 、C 30)、(30)、(0,5),点D 在第一象限,且∠ADB =60o,则线段CD 的长的最小值为______. 三、解答题(本大题76分)

2020-2021年中考数学模拟冲刺卷

2020年中考 数学模拟冲刺卷 (时间100分钟,满分120分) 一、选择题(共10小题,每小题3分,共30分) 1.-1 3的倒数是( ) A .3 B .-3 C .-1 3 D .13 2.下列图案中,是中心对称图形但不是轴对称图形的是( ) A B C D 3.如图,已知AB ∥CD ,∠2=120°,则∠1的度数是( ) A .30° B .60° C .120° D .150° 4.一个多边形的每个内角的度数均为108°,则这个多边形是( ) A .七边形 B .六边形 C .五边形 D .四边形 5.下列运算正确的是( ) A .2a 2+3a 2=5a 4 B .a 2·a =a 3 C .(a 2)3=a 5 D.a 2=a 6.在平面直角坐标系中,点A(-1,2)关于x 轴对称的点B 的坐标为( ) A .(-1,2) B .(1,2) C .(1,-2) D .(-1,-2) 7. 如图是由一个长方体和一个球组成的几何体,它的主视图是( ) A B C D 8.图1、图2分别是某厂六台机床10月份第一天和第二天生产零件数的统计图,与第一天相比,第二天六台机床生产零件数的平均数与方差的变化情况是( ) A .平均数变大,方差不变 B .平均数变小,方差不变

C .平均数不变,方差变小 D .平均数不变,方差变大 9.圆锥的母线长为4,底面半径为2,则此圆锥的侧面积是( ) A .6π B .8π C .12π D .16π 10.如图,在平面直角坐标系xOy 中,直线y =12x 与双曲线y =k x 交于A ,B 两点,且点A 的坐标为 (4,a),将直线y =12x 向上平移m 个单位,交双曲线y =k x (x >0)于点C ,交y 轴于点F ,且△ABC 的 面积是323.给出以下结论:①k =8;②点B 的坐标是(-4,-2);③S △ABC <S △ABF ;④m =8 3.其中正确 的结论有( ) A .1个 B .2个 C .3个 D .4个 二.填空题(共8小题,每小题3分,共24分) 11.因式分解:x 3-9x =__________. 12.在函数y = 3 2x -4 中,自变量x 的取值范围是 . 13.如图,在矩形ABCD 中,对角线AC ,BD 相交于点O ,AC =6,则OD = . 14.设m ,n 是方程x 2-x -2 019=0的两实数根,则m 3+2 020n -2 019=________. 15.如图,在等腰△ABC 中,AB =AC ,∠A =36°,BD ⊥AC 于点D ,则∠CBD = . 16.据军事网站报道,辽宁号航空母舰,简称“辽宁舰”,舷号16,是中国人民解放军海军第一艘可以搭载固定翼飞机的航空母舰.辽宁舰的满载排水量67 500吨,将数据67 500用科学记数法表示

相关主题
文本预览
相关文档 最新文档