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篇一:2016年山东省日照市中考数学试卷(解析版)

2016年山东省日照市中考数学试卷

参考答案与试题解析

一、选择题:本大题共12小题,其中1-8小题,每小题3分,9-12小题,每小题3分,满分40分.在每小题给出的四个选项中,只有一项是符合题目要求的,请将正确选项的字母代号填涂在答题卡相应位置上.

1.以下选项中比|﹣|小的数是( )

A.1 B.2 C. D.

【考点】有理数大小比较;绝对值.

【分析】先求出|﹣|的值,再根据有理数的大小比较法则比较即可.

【解答】解:∵|﹣|=,

A、1>,故本选项错误;

B、2>,故本选项错误;

C、=,故本选项错误;

D、﹣<,故本选项正确;

故选D.

2.如图,小明同学将一个圆锥和一个三棱柱组成组合图形,观察其三视图,其俯视图是(

A. B. C. D.

【考点】简单组合体的三视图.

【分析】根据组合图形的俯视图,对照四个选项即可得出结论.

【解答】解:由题意得:俯视图与选项B中图形一致.

故选B.

3.下列各式的运算正确的是( )

A. B.a2+a=2a3 C.(﹣2a)2=﹣2a2 D.(a3)2=a6

【考点】幂的乘方与积的乘方;合并同类项;约分.

【分析】A选项中分子分母同时约去公因式a可得a2,根据合并同类项的法则:把同类项的系数相加,所得结果作为系数,字母和字母的指数不变可得B错误;根据积的乘方法则:把每一个因式分别乘方,再把所得的幂相乘可得C错误;根据幂的乘方法则:底数不变,指数相乘可得D错误.

【解答】解:A、=a2,故原题计算错误;

B、a2和a不是同类项,不能合并,故原题计算错误;

C、(﹣2a)2=4a4,故原题计算错误;

D、(a3)2=a6,故原题计算正确;

故选:D.

4.小红把一把直尺与一块三角板如图放置,测得∠1=48°,则∠2的度数为( )

A.38° B.42° C.48° D.52°

【考点】平行线的性质.

【分析】先根据余角的定义求出∠3的度数,再由平行线的性质即可得出结论.

【解答】解:∵∠1=48°,

(转自:wWw.DXf5.Com 东星 资源网:日照中考答案)

∴∠3=90°﹣∠1=90°﹣48°=42°.

∵直尺的两边互相平行,

∴∠2=∠3=42°.

故选B.

5.每到四月,许多地方杨絮、柳絮如雪花般漫天飞舞,人们不堪其忧,据测定,杨絮纤维的直径约为0.0000105m,该数值用科学记数法表示为( )

A.1.05×105 B.0.105×10﹣4 C.1.05×10﹣5 D.105×10﹣7

【考点】科学记数法—表示较小的数.

【分析】绝对值小于1的正数也可以利用科学记数法表示,一般形式为a×10﹣n,与较大数的科学记数法不同的是其所使用的是负指数幂,指数由原数左边起第一个不为零的数字前面的0的个数所决定.

【解答】解:0.0000105=1.05×10﹣5,

故选:C.

6.正比例函数y1=k1x(k1>0)与反比例函数y2=

k1x的解集在数轴上表示正确的是( ) 图象如图所示,则不等式

A.

D. B. C.

【考点】在数轴上表示不等式的解集;反比例函数与一次函数的交点问题.

【分析】由图象可以知道,当x=﹣2或x=2时,两个函数的函数值是相等的,再根据函数的增减性可以判断出不等式k1x的解集,即可得出结论.

【解答】解:两个函数图象的另一个交点坐标为(﹣2,﹣1),

当﹣2<x<0或x>2时,直线y=k1x在y2=

故不等式k1x的解集为x<﹣1或x>2. 图象的上方,

故选:B.

7.积极行动起来,共建节约型社会!我市某居民小区200户居民参加了节水行动,现统计

10

A.240吨 B.360吨 C.180吨 D.200吨

【考点】用样本估计总体.

【分析】先根据10户家庭一个月的节水情况,求得平均每户节水量,再计算200户家庭这个月节约用水的总量即可.

【解答】解:根据10户家庭一个月的节水情况可得,平均每户节水:(0.5×2+1×3+1.5

×

4

+

2

×

1

)÷(

2

+

3+4+1)=1.2(吨)

∴200户家庭这个月节约用水的总量是:200×1.2=240(吨)

故选(A)

8.2015年某县GDP总量为1000亿元,计划到2017年全县GDP总量实现1210亿元的目标.如果每年的平均增长率相同,那么该县这两年GDP总量的平均增长率为( ) A.1.21% B.8% C.10% D.12.1%

【考点】一元二次方程的应用.

【分析】设该县这两年GDP总量的平均增长率为x,根据:2015年某县GDP总量×(1+增长百分率)2=2017年全县GDP总量,列一元二次方程求解可得.

【解答】解:设该县这两年GDP总量的平均增长率为x,根据题意,

得:1000(1+x)2=1210,

解得:x1=﹣2.1(舍),x2=0.1=10%,

即该县这两年GDP总量的平均增长率为10%,

故选:C.

9.下列命题:①若a<1,则(a﹣1)=﹣;②平行四边形既是中心对称图形又是轴对称图形;③的算术平方根是3;④如果方程ax2+2x+1=0有两个不相等的实数根,则实数a<1.其中正确的命题个数是( )

A.1个 B.2个 C.3个 D.4个

【考点】命题与定理.

【分析】分别根据平方根的定义、平行四边形的性质、一元二次方程根与判别式的关系对各小题进行逐一判断即可.

【解答】解:①∵a<1,1﹣a>0,∴(a﹣1)=﹣,故本小题正确; ②平行四边形既是中心对称图形但不是轴对称图形,故本小题错误;

③的算术平方根是,故本小题错误;

④∵方程ax2+2x+1=0有两个不相等的实数根,∴△=4﹣4a>0,解得a<1且a≠0,故本小题错误.

故选A.

10.如图,P为平行四边形ABCD边AD上一点,E、F分别是PB、PC(靠近点P)的三等分点,△PEF、△PDC、△PAB的面积分别为S1、S2、S3,若AD=2,AB=2

则S1+S2+S3的值为( ) ,∠A=60°,

A. B. C. D.4

【考点】相似三角形的判定与性质;平行四边形的性质.

【分析】先作辅助线DH⊥AB于点D,然后根据特殊角的三角函数值可以求得DH的长度,从而可以求得平行四边形的面积,然后根据三角形的相似可以求得S1+S2+S3的值.

【解答】解:作DH⊥AB于点H,如右图所示,

∵AD=2,AB=2,∠A=60°,

∴DH=AD?sin60°=2×

∴S?ABCD=AB?DH=2

=, =6,

∴S2+S3=S△PBC=3,

又∵E、F分别是PB、PC(靠近点P)的三等分点,

∴,

∴S△PEF=×3=,

即S1=,

∴S1+S2+S3=+3=

故选A. ,

11.①abc>0;②2a+b=0;如图是二次函数y=ax2+bx+c的图象,其对称轴为x=1,下列结论:

③4a+2b+c<0;④若(﹣

确的是( ) ),()是抛物线上两点,则y1<y2其中结论正

A.①② B.②③ C.②④ D.①③④

【考点】二次函数图象与系数的关系.

【分析】由抛物线开口方向得到a<0,有对称轴方程得到b=﹣2a>0,由∵抛物线与y轴的交点位置得到c>0,则可对①进行判断;由b=﹣2a可对②进行判断;利用抛物线的对称性可得到抛物线与x轴的另一个交点为(3,0),则可判断当x=2时,y>0,于是可对③进行判断;通过比较点(﹣)与点()到对称轴的距离可对④进行判断.

【解答】解:∵抛物线开口向下,

∴a<0,

∵抛物线的对称轴为直线x=﹣=1,

∴b=﹣2a>0,

∵抛物线与y轴的交点在x轴上方,

∴c>0,

∴abc<0,所以①错误;

篇二:2016日照中考英语试题及答案

英语试题

(满分120分,时间120分钟)

注意事项:

1.本试卷分第Ⅰ卷和第Ⅱ卷两部分,共10页。答题前,考生务必用0.5毫米黑色签字笔将自己的姓名、座号、准考证号等填写在答题卡规定的位置上。考试结束后,将本试卷和答题卡一并交回。

2.第I卷每题选出答案后,都必须用2B铅笔把答题卡上对应题号的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案标号。不涂在答题卡上,答在试卷上无效。

3.第II卷必须用0.5毫米黑色签字笔作答,答案须写在答题卡各题目指定的区域内,在试卷上答题不得分;如需改动,先划掉原来的答案,然后再写上新的答案。

第Ⅰ卷 (选择题,共75分)

一、听力测试(共20小题,计20分)

(一)录音中有五个句子,每个句子听一遍,然后从每小题A、B、C中选出能对每个句子做出适当反应的答语。 1. A. Me, too.

B. Not bad.

C. Thank you. C. Thanks a lot. C. Of course not.C. Have a good time! C. My pleasure.

2. A. Oh, I’m thirsty. 3. A. Sorry, I’m new here. 4. A. Congratulations! 5. A. Good idea! 的正确答案。

6. What are the speakers talking about? A. Music.

B. Books.

C. Movies.

7. What can we learn from the dialogue? A. Peter is at work. B. It’s lunch time.

C. The woman is having her lunch. 8. Who is the man probably talking to? A. A teacher.

9. What will the speakers do?A. Go to work.

B. Go to the theater.

C. Have dinner.

B. A doctor.

C. His mother.

B. A cup of tea, please. B. Yes, you can.B. You’re so lucky. B. Good luck!

(二)录音中有五组对话,听对话两遍后,从每小题A、B、C中选出能回答所给问题

10. What are the students doing now?

AB C

(三)录音中有一段对话,听对话两遍后,从每小题A、B、C中选出能回答所给问题的正确答案。

11. Where is the coat made? A. In China. A. Size L. A. White.

A. 500 yuan. 15. Where are the speakers? A. At a shop.

B. At home.

C. At school.

B. In England. B. Size S.

B. Black. B. 400 yuan.

C. In Korea. C. Size M. C. Brown. C. 300 yuan.

12. What size coat does the man wear? 13. What color does the man want? 14. How much will the man pay for the coat?

(四)录音中有一段独白,听独白两遍后,从每小题A、B、C中选出能回答所给问题的正确答案。

16. How long does the bus ride take to the hotel?A. A quarter of an hour. A. Sunny.

A. Go hiking in the forest. B. Go shopping in the town. C. Visit some lovely villages.

19. What phone number should the visitors call if they need help? A. 6828-0960. 20. Who is the speaker? A. A tourist.

B. A guide.

C. A teacher.

B. 6826-0790.

C. 6826-0690.

B. Half an hour.B. Rainy.

C. An hour. C. Cloudy.

17. What’s the weather like in the coming days?

18. What are the visitors going to do tomorrow afternoon?

二、单项选择(共10小题,计10分)

从每小题A、B、C、D中选出一个能填入句中空白处的最佳答案。

21. — Excuse me. How can I get to Shanzihe Airport?

— Take Shanghai Road, follow the __________ and you can’t miss it. A. way

B. traffic D. signs

C. notices

22. — I often feel __________ when speaking in public. — Well, just take it easy. A. boredC. nervous

B. great D. serious

23. Mum always tells me “A smile costs __________, but gives much.” A. anything B. somethingC. everything D. nothing

24. Rio 2016 Olympics will __________ 16 days from August 5th to August 21st. A. last B. continueC. count D. keep

25. I was caught in the rain. Even __________, I was late again! A. better B. worse C. further D. worst

26. Don’t let homework __________ too much time. Children need to play. A. give up B. take upC. look up D. put up 27. — Well, mum, could I hang out with my friends now? — Yes, you __________. A. mayB. can C. mustD. could

28. Give me a chance, __________ I’ll give you a wonderful surprise. A. orB. so C. and D. but 29. — May I speak to Mary?

— Hold on, please. She _________ in the kitchen. A. has cooked B. cooked C. will cook D. is cooking 30. — Could you please tell me __________? — At 169, Jinan Road. A. where the library liesB. how I can get to the library C. where is the libraryD. how can I get to the library

三、完形填空(共15小题,计15分)

阅读下面的短文,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选出最佳选项。

It was a cold windy winter day and I was walking home from work. My head pointed down against the when I noticed an old lady. She was on the sidewalk in her house slippers (拖鞋).

As I her, I saw that she was well into her 80s, and she was holding somein her hands.

I walked on and arrived at the traffic light. Waiting there, I saw the mailbox the street. The light turned green, but I pretended (假装) to check my phone and waited for her to catch up with me. In this neighborhood, even crossing with the green light was . Drivers often drove through red lights and stop signs.

I stayed there until she me. I turned to her and touched her gently on the arm. She smiled and took my hand in hers and it. Her small hand was soft and warm. Hand-in-hand, we were waiting for the to change.

When the light turned green, we walked together slowly across the street, the letters in the mailbox. Then I took her across the street.

As I walked the rest of the way home, I could still feel the of her hand in my own. People say the first language of all humans is situation touch.

31. A. crowd32. A. begging33. A. knew

34. A. letters35. A. across36. A. strange37. A. carefully 38. A. called39. A. pushed40. A. way

41. A. took

B. snowB. walking B. expected B. pictures B. overB. crazyB. quietly B. reached B. pulledB. light

B. sentB. backB. trustB. kindness B. necessary

C. wind C. missed C. books

D. rain D. riding D. passed D. flowers D. behind D. safe D. calmly D. caught D. held D. traffic D. locked D. ahead D. love D. action D. hopeful

C. running

C. throughC. dangerous C. wildly C. found C. hit C. ride

C. droppedC. awayC. careC. touchC. popular

42. A. forward43. A. warmth44. A. help

45. A. interesting

四、阅读理解(共15小题,计30分)

阅读下列材料,然后从每小题A、B、C、D四个选项中选出能回答所提问题或完成所给句子的最佳答案。

A

Do you want to get home from work knowing you have made a real difference in someone’s life?

If yes, don’t care about sex or age! Come and join us, then Job: Volunteer Social Care Assistant(No Pay with Free Meals) Place: Manchester Hours: Part Time

We are now looking for volunteers to support people with learning disabilities to live active lives! Only 4 days left. Don’t miss the chance of lending your warm hands to help others!

Role:

You will provide people with learning disabilities with all kinds of help in their daily life. You will help them to develop new skills. You will help them to protect their rights and their safety. Most important of all, you should let them know they are valued.

Skills and Experience Required:

You will have the right values and great listening skills. You will be honest and patient. You should have the ability to drive a car and to communicate in excellent written and spoken English, since you’ll help those people with different learning disabilities. Previous (先前的) related experience will be a great advantage for you. 46. What does the underlined part in Paragraph 2 mean? A.You’ll make others’ life more meaningful with this job. B. You’ll arrive home from work just in time. C. You’ll make much money from this job. D. You’ll succeed in getting this job.

47. The volunteers’ key role is to help people with learning disabilities _____________. A. get some support

B. protect themselves D. know their own value

C. learn some living skills

48. Which of the following is NOT true according to the passage? A. The volunteers needn’t work all day long. B. Free meals are provided for the volunteers. C. The volunteers should be over sixteen.

D. Only four days are left for those who want to get the job.

篇三:山东省日照市2015年中考数学试卷(解析版)

2015年山东省日照市中考数学试卷

一、选择题(1-8小题每小题3分,9-12小题每小题3分)

1.(3分)(2015?日照)下面四个图形分别是节能、节水、低碳和绿色食品标志,在这四个

32

4.(3分)(2015?日照)某市测得一周PM2.5的日均值(单位:微克/立方米)如下:31,

5.(3分)(2015?日照)小红在观察由一些相同小立方块搭成的几何体时,发现它的右视图、俯视图、左视图均为如图,则构成该几何体的小立方块的个数有( )

6.(3分)(2015?日照)小明在学习了正方形之后,给同桌小文出了道题,从下列四个条件:①AB=BC,②∠ABC=90°,③AC=BD,④AC⊥BD中选两个作为补充条件,使?ABCD为正方形(如图),现有下列四种选法,你认为其中错误的是( )

7.(3分)(2015?日照)不等式组

的解集在数轴上表示正确的是( )

8.(3分)(2015?日照)如图,等腰直角△ABC中,AB=AC=8,以AB为直径的半圆O交斜边BC于D,则阴影部分面积为(结果保留π)( )

9.(4分)(2015?日照)某县大力推进义务教育均衡发展,加强学校标准化建设,计划用三年时间对全县学校的设施和设备进行全面改造,2014年县政府已投资5亿元人民币,若每

10

.(4分)(2015?日照)如图,在直角△BAD中,延长斜边BD到点C,使DC=BD,连接AC,若tanB=,则tan∠CAD的值( )

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