2014年中考冲刺英语模拟试卷(1)
班级姓名考生号
第一卷
Ⅰ.选择填空(每小题1分,共10分)
1.. --Jenny, could you please play piano for me while I'm singing?
--With pleasure.
A. a
B. an
C. the
D. /
2. --Why did you look so ?
--Because I had a really busy weekend.
A. nice
B. tired
C. exciting
D. beautiful
3. --What can I do for you?
--Oh, I'm so thirsty. I' d like two
A. bowl of rice
B. bowls of rice
C. bottle of juice
D. bottles of juic
4. Health is___than money.
A important
B most important
C more important
D as important as
5.. --The radio is too noisy. Would you mind a little, please?
--Sure, sorry about that.
A. turn down it
B. turning it down
C. turning it on
D. to turn it off
6.. --If you a new idea, please call me as soon as possible.
--Sure, I will.
A. catch up with
B. keep up with
C. feed up with
D. come up with
7.. --I think Mr. Lin may be in his office.
--No, he be there. I saw him there just now.
A. can?t leave
B. can't leaving
C. mustn?t left
D. may not stay
8. --My parents have ever been to Hainan Island.
--Really? When there?
A. did they go
B. will they go
C. have they gone
D. have they been
9. --Did you go to the concert yesterday evening?
--Yes. The music wonderful.
A. heard
B. found
C. sounded
D. listened
10. --Excuse me, do you know what time ?
--At 22 : 30.
A. does the last bus leave
B. will the last bus leave
C. the last bus leaves
D. the last bus has left
Ⅱ.完形填空(每小题1分,共10分)
阅读下面短文,从各题所给的四个选项中选出最佳选项。
Bill Gates' friends knew that he was different even when they were children. One" of them said, "We all knew that Bill was 11 than us. Sometimes we could not understand him. "
Bill was also 12 of his classmates in math and science, so his parents sent him to Lakeside--a boy's school for 13 students. It was Seattle's most famous school.
In 1968, the school made a decision that changed 13-year-old Bill Gates- life. In that
school, money 14 mainly by parents, which could make the school have a computer and
15 it through a teletype machine(电传打字机).The students typed in a few words on the teletype machine and 16 seconds later the computer typed back to students.Bill Gates was interested in it at once. From then on, 17 could stop Bill from studying it. 18 he was free, he would run to the computer room to use the machine. He became 19 excited about it that he soon was much better than his teachers in knowledge of computer.
At fourteen, Bill was already writing 20 for the computer. And they were written in what was to become Bill's second language, BASIC.
11. A. worse B. richer C. shorter D. cleverer
12. A. top B. worst C. weak D. well
13. A. poor B. rich C. excellent D. healthy
14. A. is given B. was given C. is sent D. was sent
15. A. put B. use C. buy D. offer
16. A. few B. a few C. little D. a little
17. A. nothing B. anything C. everything D. something
18. A. Whoever B. However C. Wherever D. Whenever
19. A. so B. such C. very D. much
20. A. funny stories B. some words C. some letters D. short programmes
阅读理解(25分)
Ⅰ.阅读下面材料。选择最佳答案。(每小题2分,共20分)
(A)
Come and see the Indian elephants and tigers from America. The koalas are waiting to meet you, and the monkeys from Thailand are waiting to throw things at you. The cute dogs from Australia are waiting to laugh at you, and the giraffes from Zambia are waiting to look down on you.
Tickets Time
Adult(成人):$6 June l~June 2
Children:Free 9:00 a.m.~7:00 P.m.
Keep the park clean!
Do not touch,give food or go near the animals!
21. How many kinds of animals are talked about in the poster?
A. 4.
B. 5.
C. 6.
D. 7.
22. Mr. and Mrs. Brown will take their twins aged 6 to the park. How much will the tickets be together?
A. $6.
B. $12.
C. $18.
D. $24.
233. Visitors can do the following things EXCEPT
A. taking some photos
B. watching the elephants dancing
C. giving some food to the tigers
D. laughing at the dogs from Australia
24. From the passage we can know the animal "giraffe" is
A. fat
B. tall
C. long
D. strong
25. The poster may be made just
A. on New Year's Day .
B. on Christmas Day
C. after Children's Day
D. before Children's Day
(B)
EVERYONE is talking about bird flu. Yes it is a very dangerous disease that could make people very sick. It will be a few months before we have good medicine for bird flu. But that doesn't mean you can't do anything to prevent it now.
So far, all the people who have caught bird flu have been those who touched sick chickens or their droppings. So it is a good idea for people to stay away from live chickens. "People used to go to the markets to buy live chickens to eat, but now they have to change that habit. " said Peter, an expert from World Health Organization. But if you do touch a sick bird, remember to wash your hands carefully with soap right away.
Experts also say having good habits and a healthy body will help keep you safe from bird flu. For example, don?t bu y or eat birds that have not been checked. Don't eat anything that has touched raw meat. Also don't forget to open your windows often and exercise regularly. Getting enough sleep is also very important for fighting illness. If you feel sick, see a doctor right away. At present, no one in Shanghai has bird flu. But WHO says children under 12 years old could easily get sick with bird flu.
Try to stay away from people who have the flu, and always cover your mouth and nose when you cough or sneeze.
26. Which sentence is NOT true according to the passage?
A. Bird flu is widely known to people.
B. Bird flu is a very dangerous disease.
C. Bird flu could make people sick.
D. We have good medicine for bird flu now.
27. How do people catch bird flu?
A. By eating boiled eggs.
B. By eating checked birds.
C. By forgetting to open windows.
D. By touching sick chickens or their droppings.
28. Which habit is not safe for fighting the illness?
A. If you feel sick, see a doctor right away.
B. To do some exercises regularly and keep healthy.
C. To go to the market to buy live chicken to eat.
D. To wash your hands carefully with soap if you do touch a sick bird.
29. Who is easy to get bird flu?
A. Experts.
B. Everyone.
C. Grownups.
D. Children under 12 years old.
30. What should you do when you cough or sneeze?
A. Have enough sleep.
B. Cover your mouth and nose.
C. Stay with other people.
D. Always close the windows.
Ⅱ.根据短文内容判断下列句子的正误,正确的用“A”,错误的用“B”。(每小题1分,共5分)
Mr..and Mrs..Brown had two sons and three daughters.One Sunday,Mrs..Brown sai to her husband。“The children don?t have any lessons today,and you?re free t oo.There's a new funfair(游乐场)in the park.Let?s all go there to play.”
Her husband said, "I want to finish some work today. " "Oh, forget it. Go there and make our children happy. That's the most important work. " Mrs. Brown said.
So Mr. and Mrs. Brown took their children to the funfair. Mr. Brown was forty-five years old, but he enjoyed the funfair more than his children. He hurried from one thing to
another, and ate lost of sweets. One of the children said to her mother, "Dad is just like a small child, isn't he, Morn?" Mrs. Brown didn't want to follow her husband around any more at that time and answered, "He is even worse than a small child, Mary, because he might spend more money than a small child. "
31. There were five children in the Brown family.
32. One Sunday, Mr. and Mrs. Brown went to a shop with their children.
33. Mr. Brown liked the funfair so much that he took many photos.
34. From the story we know Mrs. Browns had a good time in the park.
35. Of all the family members, Mr. Brown enjoyed playing there most that Sunday.
请同学们把第一卷答案写在答题卡上:
题号 1 2 3 4 5 6 7 8 9 10
答案
题号11 12 13 14 15 16 17 18 19 20
答案
题号21 22 23 24 25 26 27 28 29 30
答案
题号31 32 33 34 35
答案
第二卷
语言知识运用(20分)
Ⅰ.词汇(10分)
根据汉语意思完成句子。(每小题2分,共10分)
1.这种特殊的桌子不是有木头而是由石头制成的。
.This special table is not wood but of stone.
2. 张老师对孩子很友好。
Mr. hang _______ _______ ______children.
3.我想要听音乐。
.1 would like to music
4.爱丽丝擅长跳舞,她想将来做个舞蹈家。
Alice is dancing.She wants to be a dancer in the future.
5. 西安是我国最大的城市之一。
Xi?an is one of _____ ______ _____ ______in China.
Ⅱ.综合填空(每小题1分,共10分)
用方框中所给单词的适当形式填空,使短文正确、通顺。每词限用一次。
Ask let good free time able look alone choose teacher Students often want to practice their English outside class. One of the 1_______ ways
of practicing your English is to speak to foreigners. Most of the students 2 , "Is it
OK to talk to foreigners when we meet them in the street?"
The answer is yes or no, but probably no! If you see a foreigner who 3 lost,
it is polite to ask him or her, "May I help you?" But if not, you should probably 4
him or her get on with the business. That is, you can talk to a foreigner at some 5
or place. Feel free to ask him or her question if a foreigner comes into your school, classroom or your 6 office.
It's also OK to talk to foreigners in some public places. If you see a foreigner 7 in a
restaurant, a waiting room, or a shop, it may be the right time for you to ask him or her, "Is this
seat 8 9" or questions like this. You can probably help them if they are new to China.
And if they are alone, you may be 9 to make them feel more welcome.
It…s a pleasure to talk to a forei gner if you 10 the right time and place.
口语应用(15分)
Ⅰ.根据对话内容。从方框中选择恰当的句子补全对话。(每小题1分,共5分)
A: Excuse me. Are you Sandra Li?
B: 1 A: I'm Tony Liang. I'm in Grade Nine. We are pub- lishing a newspaper this year, and I'm the spor editor. B: 2 How can I help you, Tony? A: Well, I'd like to interview you about the girls' ta- ble tennis team, please. B: Yes, all right. 3 A: Could we meet today after school?
B: 4 What about tomorrow, in the lunch hour?
A: Yes, that would be fine. 5
B: All right. I'll meet you in Room 16, at about half past twelve.
A: Right. Thanks very much, Sandra. Goodbye:
B: Bye.
Ⅱ.用恰当的单词填空。完成对话。每空一词。(每小题1分,共l0分)
A: Hi, Jenny. Would you 6 to go swimming this afternoon?
B: I wish I could, Mike, but I have to 7 the rest of the day in the library. I have
to 8 in a paper tomorrow.
A.. Oh, is that for Professor Smith's class?
B~ Yes, I have to 9 an article on a book we read in class.
A: That's hard. How are you 10 on with your study so far?
B: Not very well. And I also have to study a lot for 1l I don't know how I'm
going to do it at 12
A: You know, Jenny. I've been doing 13 in math, so I'd be happy to 104
you.
B: That's very 15 of you.
A: Good luck with your paper.
任务阅读 (10分)
Ⅰ.阅读短文。根据短文内容填空。完成句子。每空一词。(每小题2分,共10分)
In most parts of the world, many students help their schools make less pollution." They
join "environment clubs". In an environment club, people work together to make our
environment clean.
Here are some things students often do:
N0—garbage(垃圾)lunches .How much do you throw away after lunch? Environment
clubs ask students to bring their lunches in bags that can be used again. Every week they A .N0,I have a match today ,
1?m afraid .
B .Can you come to Room l67
C .I see .
D .That?s OK .
E .When do you want to meet?
F .Can you help me?
G .Yes ,that?s right .
will choose the classes that make the least garbage and report them to the whole school.
No-car day. On a no-car day, nobody comes to school in a car. The students and the teachers drive cars. Cars give pollution to our air, so remember: walk, jump or run. Use
your legs! It's lots of fun.
Turn off the water! Did you know that some toilets could-waste twenty to forty cubic
(立方) meres of water an hour? In a year,that would fill a small river! In environment
clubs, students mend those broken toilets.
We love our environment. Let's work together to make it clean.
1.. Environment clubs ask students not to away lunch
2. From the passage we know the students usually have at
3. The environment clubs call on the students to to school because cars always our
air.
4.. In environment clubs, students mend the toilets to save
5.. The writer the passage to ask the students to make pollution.
书面表达(10分)
1.假设你叫唐玫,是某电视台英语频道“School English”栏目的忠实观众。请根据下列信息给该栏目的主持人Kate写一封英文信,说说你对栏目的看法,并表达你对这个栏目的良好祝愿。
优点内容丰富(有故事、游戏、英文歌曲等),有利于提高英语水平(词汇量、听说能力);能了解更多的外国文化
不足语速有点快;每周只播出两次
要求:1.语句通顺,合乎逻辑。
2.词数80左右(信的开头和结尾已给出,不计入总词数)。
April l8th,2012 Dear Kate,
I like your program very much.
Yours sincerely,
Tang Mei
答案
第一卷
语言知识运用
1.1—5CBBBB 6—10 DDACC
Ⅱ.11—15DACBB 16—20 BADAD
阅读理解
Ⅰ.(A)21—25 CBCBD
(B) 26—30 DDCDB
Ⅱ.31—35 ABBBA
第二卷
语言知识运用
Ⅰ.
ii.76.made of 77.1isten t0 78.Is friendly to
79.good at 80。The biggest cities
Ⅱ.1.best 2.ask 3.Looks 4.1et 5.time
6.teacher?s 7.alone 8.free 9.able
10.choose
口语应用
Ⅰ.1—5 GCEAB
Ⅱ.6.1ike 7.spend 8.hand 9.write l0.getting
11.math l2.all l3.well l4.help
15.kind
任务阅读
1.1.throw,bags 2.1unch,school 3.walk,
pollute l4.broken。water 5.wrote.1ess
书面表达
(范文仅供参考)
April l8th,2012
Dear Kate,
I like your program very much. It has a lot of interesting stories, attractive games and popular English songs. From your program we can learn many new words and expressions. We can improve our listening and speaking. We can also know more about the culture of other countries in the world. In a word, we learn a lot from your program.
I'm sorry to tell you that I can't follow you easily sometimes because you speak a little bit fast. It?s also a pity that we can only watch your program twice a week.
Thank you for giving us a lot of fun! I wish your program a bright future!
Yours sincerely,
Tang Mei
2012陕西省中考数学试题及解析 第Ⅰ卷(选择题 共30分) 一、选择题(共10小题,每小题3分,计30分) 1.如果零上5℃记做+5℃,那么零下7℃可记作() A .-7℃ B .+7℃ C .+12℃ D .-12℃ 2.如图,是由三个相同的小正方体组成的几何体,该几何体的左视图是() 3.计算2 3)5(a -的结果是() A .510a - B .610a C .525a - D .625a 4.某中学举行歌咏比赛,以班为单位参赛,评委组的各位评委给九年级三班的演唱打分情况(满分100分)如下表,从中去掉一个最高分和一个最低分,则余下的分数的平均分是() 分数(分) 89 92 95 96 97 评委(位) 1 2 2 1 1 A .92分 B .93分 C .94分 D .95分 5.如图,在BE AD ABC ,中,?是两条中线,则=??ABC EDC S S :() A .1∶2 B .2∶3 C .1∶3 D .1∶4 6.下列四组点中,可以在同一个正比例函数图象上的一组点是() A .(2.-3),(-4,6) B .(-2,3),(4,6) C .(-2,-3),(4,-6) D .(2,3),(-4,6) 7.如图,在菱形ABCD 中,对角线AC 与BD 相交于点O ,OE AB ⊥, 垂足为E ,若=130ADC ∠?,则AOE ∠的大小为() A .75° B .65° C .55° D .50° 8.在同一平面直角坐标系中,若一次函数533-=+-=x y x y 与图象交于 点M ,则点M 的坐标为() A .(-1,4) B .(-1,2) C .(2,-1) D .(2,1) 9.如图,在半径为5的圆O 中,AB ,CD 是互相垂直的两条弦,垂足为P ,且AB =CD =8,则OP 的长为() A .3 B .4 C .32 D .24
陕西省2004年中考试题 数学试卷 第Ⅰ卷(选择题 共30分) A 卷 一、选择题(共10小题,每小题3分,计30分.每小题只有一个选项是符合题意的) 1.下列计算正确的是 【 】 A .(-2)0=-1 B .-23=-8 C .-2-(-3)=-5 D .3-2=-6 2.如图,若数轴上的两点A 、B 表示的数分别为a 、b ,则下列结论正确的是【 】 A . 1 2 b-a >0 B .a-b >0 C .2a+b >0 D .a+b >0 3. 如图,在锐角△ABC 中,CD 、BE 分别是AB 、AC 边上的高,且CD 、BE 交于一点P ,若∠A =50°,则∠BPC 的度数是【 】 A .150° B .130° C .120° D .100° 4. 下列函数中,当x <0时,y 随x 的增大而减小的函数是【 】 A .y =-3x B .y =4x C .y =- x 2 D .y =-x 2 5. 在下列图形中,是中心.. 对称图形的是【 】 6. 如图,⊙O 1和⊙O 2内切,它们的半径分别为3和1,过O 1作⊙O 2的切线,切点为A ,则OA 的长为【 】 A .2 B .4 C D 7. 已知圆锥形模具的母线长和底面圆的直径均是10cm ,求得这个模具的侧面积是【 】 A B a b -1 0 1 (第2题图) D A B E (第3题图) C P A. B. D. (第6题图)
A .50πcm 2 B .75πcm 2 C .100πcm 2 D .150πcm 2 8. 二次函数y =ax 2+bx+c 的图象如图所示,则下列关于a 、b 、c 间的关系判断正确的是【 】 A.ab <0 B .bc <0 C.a+b+c >0 D.a-b+c <0 9. 在一幅长80cm ,宽50cm 的矩形风景画的四周镶一条金色纸边,制成一幅矩形挂图,如图所示,如果要使整 个挂图的面积是5400cm 2,设金色纸边的宽为x cm ,那么x 满足的方程是【 】 A .x 2+130x -1400=0 B .x 2+65x -350=0 C .x 2-130x -1400=0 D .x 2-65x -350=0 10. 如图,矩形ABCD ,AD=a ,AB=b ,要使BC 边上至少存在一点P ,使△ABP 、△APD 、△CDP 两两相似,则 a,b 间的关系一定满足【 】 A . a ≥ 12 b B .a ≥b C. a ≥ 3 2 b D .a ≥2b 第Ⅱ卷(非选择题,共90分) 二、填空题(共7小题,每小题3分,计21分) 11. 不等式1-2x >0的解集是 . 12. 分解因式:x 3y 2-4x = . 13. = . 14. 若反比例函数y = k x 经过点(-1,2),则一次函数y=-kx +2的图象一定不经过第 象限. 15. 已知:在Y ABCD 中,AB =4cm,AD =7cm,∠ABC 的平分线交AD 于点E ,交CD 的延长线于点F ,则DF = cm. 16. 用科学计算器或数学用表求: 如图,有甲、乙两楼,甲楼高AD 是23米,现在想测量乙楼CB 的高度.某人在甲楼的楼底A 和楼顶 D ,分别测得乙楼的楼顶B 的仰角为65°13′和45°,处用这些数据可求得乙楼的高度为 米.(结果精确到0.01米) (第8题图) (第10题图) A D C B (第15题图) F E (第9题图)
陕西中考数学历年压轴题 1、(15)如图,在每一个四边形ABCD中,均有AD//BC,CD⊥BC, ∠ABC=60°,AD=8,BC=12. (1)如图①,点M是四边形ABCD边AD上的一点,则△BMC的面积为__________; (2)如图②,点N是四边形ABCD边AD上的任意一点,请你求出△BNC周长 的最小值; (3)如图③,在四边形ABCD的边AD上,是否存在一点P,使得cos∠BPC的值 最小?若存在,求出此时cos∠BPC的值;若不存在,请说明理由。
2、(14)问题探究 (1)如图①,在矩形ABCD 中,AB=3,BC=4,如果BC 边上存在点P,使△APD 为等腰三角形,那么请画出满足条件的一个等腰△APD ,并求出此时BP 的长; (2)如图②,在△ABC 中,∠ABC=60°,BC=12,AD 是BC 边上的高,E,F 分别为边AB 、AC 的中点,当AD=6时,BC 边上存在一点Q ,使∠EQF=90°。求此时BQ 的长; 问题解决 (3)有一山庄,它的平面为③的五边形ABCDE ,山庄保卫人员想在线段CD 上选一点M 安装监控装置,用来监视边AB ,现只要使∠AMB 大约为60°,就可以让监控装置的效果达到最佳。已知∠A=∠E=∠D=90°。AB=270m 。AE=400m ,ED=285m,CD=340m,问在线段CD 上是否存在点M ,使∠AMB=60°?若存在,请求出符合条件的DM 的长;若不存在,请说明理由。 ┓ ② ③ C A A B C F E D C A A B E D A
3、(13)问题探究 (1) 请在图①中作出两条直线,使它们将圆面四等分; (2) 如图②,M 是正方形ABCD 内一定点,请在图②中作出两条直线(要求其中一条直 线必须过点M ),使它们将正方形ABCD 的面积四等分,并说明理由. 问题解决 (3)如图③,在四边形ABCD 中,AB ∥CD ,AB+CD=BC ,点P 是AD 的中点.如果AB=a ,CD=b ,且b >a ,那么在边BC 上是否存在一点Q ,使PQ 所在直线将四边形ABCD 的面积分成相等的两部分?若存在,求出BQ 的长;若不存在,说明理由. M D B C A P D B C A (第25题图) ① ② ③
2019年陕西中考数学 一、选择题(共10小题,每小题3分,共30分) 1. 计算:()=0 3- A.1 B.0 C. 3 D.31- 2. 如图,是由两个正方体组成的几何体,则该几何体的俯视图为 3. 如图,OC 是∠AOB 的角平分线,l //OB,若∠1=52°,则∠2的度数为 A.52° B.54° C.64° D.69° 4. 若正比例函数x y 2-=的图象经过点O (a -1,4),则a 的值为 A. -1 B.0 C.1 D.2 5. 下列计算正确的是 A. 2 22632a a a =? B.() 242 263b a b a =- C.()222 b a b a -=- D.2222a a a =+- 6. 如图,在△ABC 中,∠B=30°,∠C=45°,AD 平分∠BAC 交BC 于点D ,DE ⊥AB ,垂足为E 。若DE=1,则BC 的长为 A.2+2 B.32+ C.2+3 D.3 7. 在平面直角坐标系中,将函数x y 3=的图象向上平移6个单位长度,则平移后的图象与
x 轴的交点坐标为 A. (2,0) B.(-2,0) C.(6,0) D.(-6,0) 8. 如图,在矩形ABCD 中,AB=3,BC=6,若点E ,F 分别在AB,CD 上,且BE=2AE ,DF=2FC ,G ,H 分别是AC 的三等分点,则四边形EHFG 的面积为 A.1 B. 2 3 C.2 D.4 9. 如图,AB 是⊙O 的直径,EF ,EB 是⊙O 的弦,且EF=EB ,EF 与AB 交于点C ,连接OF ,若∠AOF=40°,则∠F 的度数是 A.20° B.35° C.40° D.55° 10. 在同一平面直角坐标系中,若抛物线()42122 -+-+=m x m x y 与()n x n m x y ++-=32 关 于y 轴对称,则符合条件的m ,n 的值为 A. m=75,n=7 18 - B.m=5,n= -6 C.m= -1,n=6 D.m=1,n= -2 二、填空题(共4小题,每小题3分,共12分) 11. 已知实数2 1 - ,0.16,3,π,25,34,其中为无理数的是 12. 若正六边形的边长为3,则其较长的一条对角线长为
2012年陕西省中考试题及答案 数学 第Ⅰ卷(选择题 共30分) 一、选择题(共10小题,每小题3分,计30分) 1.如果零上5 ℃记做+5 ℃,那么零下7 ℃可记作( ) A .-7 ℃ B .+7 ℃ C .+12 ℃ D .-12 ℃ 【答案】A 【解析】通过题意我们可以联想到数轴,零摄氏度即原点,大于零摄氏度为正方向,数值为正数, 小于零摄氏度为负数.故选A . 2.如图,是由三个相同的小正方体组成的几何体,该几何体的左视图是( ) 【答案】C 【解析】三视图主要考查学生们的空间想象能力,是近几年中考的必考点,从图中我们可以知道正 面为三个正方形,(下面两个,上面一个),左视图即从左边观看,上边有一个正方形,下 面两个正方体重叠,从而看到一个正方形,故选C . 3.计算2 3)5(a -的结果是( ) A .510a - B .6 10a C .5 25a - D .6 25a 【答案】D 【解析】本题主要考查了数的乘方以及幂的乘方,从整体看,外边是个平方,那么这个数肯定是正 数,排除A ,C ,然后看到5的平方,是25,3 a 的平方是6 a ,积为6 25a ,选
D . 4.某中学举行歌咏比赛,以班为单位参赛,评委组的各位评委给九年级三班的演唱打分情况(满分100分)如下表,从中去掉一个最高分和一个最低分,则余下的分数的平分数(分) 89 92 95 96 97 评委(位) 1 2 2 1 1 A .92分 B .93分 C .94分 D .95分 【答案】C 【解析】统计题目也是年年的必考题,注重学生们的实际应用能力,根据题目规则,去掉一个最高 分和一个最低分,也就是不算89分和97分,然后把其余数求平均数,得到94分.其实这 种计算有个小技巧,我们看到都是90多分,所以我们只需计算其个位数的平均数,然后再 加上90就可以快速算出结果.个位数平均数为45)62522(=÷+?+?,所以其余这些数 的平均数为94分.故选C . 5.如图,在BE AD ABC ,中,?是两条中线,则=??ABC EDC S S :( ) A .1∶2 B .2∶3 C .1∶3 D .1∶4 【答案】D 【解析】本题主要考查了三角形的中位线的性质,由题意可知,ED 为ABC ?的中位线,则面积比 =??ABC EDC S S :4:1)2 1 ()( 22==AB ED ,故选D . 6.下列四组点中,可以在同一个正比例函数图象上的一组点是( ) A .(2.-3),(-4,6) B .(-2,3),(4,6) C .(-2,-3),(4,-6) D .(2,3),(-4,6) 【答案】A 【解析】本题考查了一次函数的图象性质以及应用,若干点在同一个正比例函数图像上,
2019-2020年中考政治试题及答案 一、选择题(共30小题,每小题2分,共60分。每小题给出的四个选项中只有一个选项 是最符合题意的) 1.2013年12月,中共中央办公厅印发《关于培育和践行社会主义核心价值观的意见》,将 24字核心价值观分成三个层面。公民个人层面的价值准则是() A.富强、民主、文明、和谐 B.爱国、敬业、诚信、友善 C.自由、平等、公正、法治 D.民主、自由、文明、博爱 2.2013年6月18日,党的群众路线教育实践活动正式启动,将 主要任务聚焦到作风建设上。右侧漫画讽刺的是() A.形式主义 B.官僚主义 C.享乐主义 D.奢靡之风 3.在中国传统文化中,宽容是支撑中国人精神生活的支柱之一。 下列说法中表明“宽容友善”的是() A.授人玫瑰,手留余香 B.勿以善小而不为,勿以恶小而为之 C.我为人人,人人为我 D.千里家书只为墙,让他三尺又何妨 4.一滴水珠总想跃出大海,到外面去看看整个世界。同伴和鱼儿劝阻它,它都不听,一天, 当海上起风时,它猛地跃出了海洋。可它一探头,就瞬间消失了,这则寓言说明() A.个人离不开集体 B.集体需要成员团结合作 C.集体离不开个人 D.集体必须有共同的目标 5.跳楼身亡的姜某,在生前的博客中,记载了丈夫王某的一些不良行为。姜某死后,网友在 口诛笔伐王某的同时,启动了“人肉搜索”,王某大量的个人隐私被传到网上,网友的行 为() A.是国扶正义的表现 B.割裂了权利与义务关系 C.明辨了是非与善恶 D.破坏了国家的网络安全 6.一味地依赖别人,把自己的命运寄托在他人身上,时时事事靠别人指点才能过日子的人, 是不会有什么大的作为的,这种人表现为() ①经常听取父母与老师意见②无意识地以别人的看法评价自己 ③接受礼物时先推辞再接受④理所当然地认为别人北自己能干 A.①② B.①③ C.②④ D.③④ 7.坚强的意志能促使人的潜能得到充分的开发,能使人积极地迎接挑战,不断地超越自我。 下列能突出说明这一道理的是() A.东汉时期的杨震拒收礼金 B.李时珍编著《本草纲目》做了千万次试验 C.朱光潜一生立三次座右铭 D.吴文俊从零分起步锲而不舍终成数学家 8.日常生活中,有人会随口答应别人的请求:“没问题,这事包在我身上!”很多时候“没问题”成了“大问题”,因为这个问题他根本解决不了,这告诉我们() A.生活中时时有承诺 B.人与人之间是一种承诺的链接 C.承诺时应量力而行 D.兑现承诺需要付出高昂的代价 9.“我是看科幻小说长大的,这些书将我带到另一个世界,满足了我无止境的好奇……”卡 梅隆正是在试图认知全新世界的探险中拍摄了《阿凡达》等多部名片,可见好奇心()
机密★启用前试卷类型:A 2019年陕西省初中毕业学业考试 数学试卷 注意事项: 1、本试卷分为第一部分(选择题)和第二部分(非选择题)。全卷共8页,总分120分。考试时间120分钟。 2、领取试卷和答题卡后,请用0.5毫米黑色墨水签字笔,分别在试卷和答题卡上填写姓名和准考证号,同时用2B铅笔在答题卡填涂对应的试卷类型信息点(A或B)。 3、请在答题卡上各题的指定区域内作答,否则作答无效。 4、作图时,先用铅笔作图,再用规定签字笔描黑。 5、考试结束,本试卷和答题卡一并交回。 第一部分(选择题共30分) 一、选择题(共10小题,每小题3分,计30分,每小题只有一个选项是符合题意的) 1.计算:(-3)0=【A】 A.1 B.0 C.3 D .- 1 3 2.如图,是由两个正方体组成的几何体,则该几何体的俯视图为【D 】 3.如图,OC是∠AOB的平分线,l∥OB.若∠1=52°,则∠2的度数为【C】A.52°B.54° C.64°D.69° 4.若正比例函数y=-2x的图象经过点(a-1,4),则a的值为【A】 A.-1 B.0 C.1 D.2 5.下列计算正确的是【D】 A.2a2·3a2=6a2B.(-3a2b)2=6a4b2 C.(a-b)2=a2-b2D.-a2+2a2=a2 6.如图,在△ABC中,∠B=30°,∠C=45°,AD平分∠BAC,交BC于点D,DE⊥AB,垂足为E,若DE=1,则BC的长为【A】 A.2+ 2 B.2+ 3 C.2+ 3 D.3 7.在平面直角坐标系中,将函数y=3x的图象向上平移6个单位长度,则平移后的图象与x轴交点的坐标为【B】 A.(2,0) B.(-2,0) C.(6,0) D.(-6,0) 8.如图,在矩形ABCD中,AB=3,BC=6.若点E、F分别在AB、CD上,且BE=2AE,DF=2FC,G、H分别是AC的三等分点,则四边形EHFG的面积为【C】 A.1 B. 3 2 C.2 D.4 BE=2AE,DF=2FC,G、H分别是AC的三等分点 ∴E是AB的三等分点,F是CD的三等分点 ∴EG∥BC且EG=- 1 3BC=2 同理可得HF∥AD且HF=- 1 3AD=2 ∴四边形EHFG为平行四边形EG和HF间距离为1 S四边形EHFG=2×1=2 9.如图,AB是⊙O的直径,EF、EB是⊙O的弦,且EF=EB,EF与AB交于点C,连接OF.若∠AOF=40°,则∠F的度数是【B】 A.20°B.35°C.40°D.55° 连接FB,得到FOB=140°; ∴∠FEB=70° ∵EF=EB
初中政治模拟试题及答案 初中政治模拟试题及答案 初中政治模拟试题及答案 人教版思想品德八年级上册第一单元测试题及答案 一、单项选择题(将正确答案前面的字母写在相应的括号里,每小题2分,共10分) 1、我们与父母之间产生代沟的直接原因是() A、生活经验 B、年龄差距 C、人生经历 D、兴趣爱好 2、与父母发生冲突时,应采取的正确方法是() A、以强硬的态度顶撞 B、以粗暴的举止反抗 C、不理不睬,冷淡相对 D、冷静下来,心平气和地与父母商量 3、现在的家庭结构一般为() ①主干家庭②单亲家庭③核心家庭④联合家庭 A、①③ B、②③ C、③④ D、①② 4、孝敬父母() A、是道德义务,但不是法律义务 B、是法律义务,但不是道德义务 C、既是道德义务,也是法律义务 D、既不是道德义务,也不是法律义务
5、有人对500名中学生进行问卷调查,反映与父母有代沟的选择较为集中,具体表现在“穿衣打扮”、“父母唠叨”、“业余爱好”、“零用钱消费”、“课外读物”、“交友”、“隐私”等方面的分歧,这表明() A、严也是一种爱 B、我们要努力克服逆反心理 C、代沟的实质是反映在年龄差异背后的多重代际差异 D、在家庭交往中,与父母不必太计较 二、不定项选择题(有一个或一个以上是正确的。请把正确答案前面的字母填在相应的括号内。每小题3分,共12分) 1、下列体现父母与子女出现代沟的是() A、小云在家听流行歌曲,妈妈说心烦,要她关掉 B、小勇喜欢足球,经常向爸爸要钱买《足球报》,爸爸说他不务正业 C、妈妈与圆圆到商场买衣服,圆圆看中的妈妈不肯买,妈妈看中的圆圆不喜欢 D、吃饭时爸爸和文文分析文文学习成绩下降的原因 2、小莉过几天就要过生日了,小莉想请几个要好的同学来参加她的生日聚会。可小莉家境并不富裕,父母上班又忙。因此小莉应该() A、先征求父母的意见 B、考虑家里的难处,量力而行 C、请同学去饭店大吃一顿 D、永远取消生日聚会
2010年中考数学压轴题10题精选 【1】如图,点P 是双曲线11( 00)k y k x x = <<,上一动点,过点P 作x 轴、y 轴的垂线,分别交x 轴、y 轴于A 、B 两点,交双曲线y = x k 2 (0<k 2<|k 1|)于E 、F 两点. (1)图1中,四边形PEOF 的面积S 1= ▲ (用含k 1、k 2的式子表示); (2)图2中,设P 点坐标为(-4,3). ①判断EF 与AB 的位置关系,并证明你的结论; ②记2PEF OEF S S S ??=-,S 2是否有最小值?若有,求出其最小值;若没有,请说明理由。 【2】一开口向上的抛物线与x 轴交于A (m -2,0),B (m +2,0)两点,记抛物线顶点为C ,且AC ⊥BC . (1)若m 为常数,求抛物线的解析式; (2)若m 为小于0的常数,那么(1)中的抛物线经过怎么样的平移可以使顶点在坐标原点? (3)设抛物线交y 轴正半轴于D 点,问是否存在实数m ,使得△BCD 为等腰三角形?若存在,求出m 的值;若不存在,请说明理由. 【3】如图,在梯形ABCD 中,24AD BC AD BC ==∥,,,点M 是AD 的中点,MBC △是等边三角形. (1)求证:梯形ABCD 是等腰梯形; (2)动点P 、Q 分别在线段BC 和MC 上运动,且60MPQ =?∠保持不变.设PC x MQ y ==,, 求y 与x 的函数关系式; (3)在(2)中:①当动点P 、Q 运动到何处时,以点P 、M 和点A 、B 、C 、D 中的两个点 B D A C O x y