当前位置: 东星资源网 > 中考资料 > 中考时间 > 正文

青海中考时间

时间:2017-04-18 来源:东星资源网 本文已影响 手机版

篇一:2015年青海省英语中考试卷手打

一、单项选择(每小题1分,共20分)从A、B、C三个选项中选出一个可以填入空白处的最佳答案。

21.My little brother Bob hopes to travel to ________ space in the future.

Aa B / Cthe

22. — Must we stay here waiting for you?

— No, you ________.

A needn'tB can't C shouldn't

23. — Judy and I will go to the beach tomorrow.

— It's so nice. Enjoy ________.

Ayourselves B yourself C herself

24. — What is ________ brother?

— He is a policeman.

A Jim's and Paul's B. Jim and Paul C. Jim and paul's

25. — I usually go hiking with my friends.

— ________ do I.

A nor B. So C. Neither

26. I don't like TV series ________ it's boring.

A but B. and C. because

27. Look! ________ sweet smile the little girl has!

A HowB. What aC what

28. Do more exercise, ________ you'll have a strong body.

A /Bor Cand

29. It's well-know that learning English well ________ time and efforts.

A requires B. wastes C takes

30. — What do you think of the talk show last night?

— I didn't watch it. I ________ mum with some chores.

A helped B was helpingC. have helped

31. The stone bridge ________ was built in Song Dynasty was repaired last month.

Athat B when C where

32. — There ________ many trees at the foot of the mountain.

— But now they are slowly disappearing because of human activities.

A is used to B used to C used to be

33. — Have you heard the news of the traffic accident?

— Yes, many people have lost their lives and the situation is becoming ________.

A worse and worse B better and better C more and more

34. — Jane, is this your bike?

— No, you can ask Alice. It may be ________.

A she B her C hers

35. Playing computer games too often ________ our eyes.

A is helpful to B is harmful to C is good for

36. I had some ________, vegetables and two eggs for dinner.

Arice B noodle C banana

37. — Your school is so beautiful.

— Thanks! A modern stadium and a big garden ________ to make it nicer this year.

A will be built B has been built C is built

38. — It's so hot today.

— Why don't you ________ your jacket?

A take away B. take off C take back

39. — Don't you tell me that they have gone to Australia?

— Sure. But I don't know ________.

A when they have come back B when have they come back C when did they come back

40. — Guess what? I won the dancing competition last week.

— Wow, ________!

A Never mind B No problem C congratulations

二、完型填空(共两节,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。

Chris's parents were proud of him when he graduated from college. But after six months, he still didn't find a job. In fact, he had no idea <u><b>1</b></u> he wanted to do. He was living at home with his parents and things were becoming not good. His father thought of <u><b>2</b></u> as a lazy man who was afraid <u><b>3</b></u> the real world.

Chris thought his dad was ueasonable(不讲道理的). After all, he was young and he needed some space. During a recent argument, Chris said, “I'm not you, Dad. I have my own way <u><b>4</b></u> doing things. I want a job I enjoy.” His dada said, “That's a nice idea, <u><b>5</b></u> anyway we call it ‘job’ because it's about making a living, not <u><b>6</b></u> fun.”

There are many young people like Chris. They are having trouble getting started with a serious job and becoming <u><b>7</b></u>. They just don't want to grow up. They think when the time is right, everything will be all right. <u><b>8</b></u>, it doesn't work that way. Things happen and opportunities appear most often when we are moving, not standing still(静止). The <u><b>9</b></u> step is the hardest, but they key to <u><b>10</b></u> in anything is getting started.

41. A. howB whatC where D whey

42. A. he B his C it D him

43. A. to enter B entering C entered D enter

44. A. to B with C atD of

45. A. however BandC but Dso

46. A. have B to have C having D had

47. A. funnyBindependent C strange D famous

48. A. Unluckily B Luck C Lucky D Luckily

49. A. last B first C one D only

50. A. success B successfulC succeed D successfully

用方框中所给词的适当形式填空,使短文完整、通顺。(每空1分,共5分)

<table border="1" width="300" cellspacing="0" cellpadding="3" bordercolorlight="#000000"><tr><td align="center">find turn down care phone safe</td></tr></table>

Do you often listen to music through earphones? Then you should be51 . More than 1,000,000,000 young people are at risk of losing their hearing from loud music, a new World Health Organization(WHO) report says. The study 52 that among people aged 12 to 35,

nearly half were at risk because of 53 levels of sound on MP3 players and smart 54 . Volumes(音量) over 85 decibels(分贝) for eight hours or 100 decibels for 15 minutes can damage your ears. Traffic noise at rush hour can reach 85 decibels. Perhaps it's time 55 the volume.

三、阅读理解(共四节,20小题,计40分)

仔细阅读图片内容,从A、B、C、D四个选项中选出最佳选项。

56. If you have a headache, take ________ tablets of Aspirin.

A2B 4 C8 D 24

57. If you are burned, you can use ________.

A BAYOR ASPIRIN B FIRST AID CREAMC ANTIHISTAMINE CREAM

D SOME TABLETS

58. You can apply first aid cream every ________ hours.

A3 B 4C 3 to 4 D24

59. Antihistamine Cream is used for ________.

A insect bites B fast pain relief C burns D cuts

60. Don't apply Antihistamine Cream ________.

A in a 24 hours period B in the eyes C near the eyesD on broken skin

A recent survey showed that only 9 percent of teens in the United States smoke cigarettes. That's down from 23 percent in 2000. While this is good news for the US's overall health, tobacco(烟草) use is still a problem.

Cigarettes can cause many diseases, such as cancer(癌症), lung diseases and heart problems. Although they know about the health problems, teenagers still smoke. So the <u>campaign</u> of the US Anti-smoking Organization is working to end teenage smoking. Their latest activity uses social media(社交媒体) to remind teenagers of the dangers of smoking. And the activity also encourages teens to learn the facts and become the generation that ends smoking.

However, anti-smoking campaigns may have a new problem to worry about. According to a 2013 report, the use of electronic cigarettes is on the rise. American high school students who reported having used an electronic cigarette rose from 4. 7 percent in 2011 to 10 percent in 2012. The increased use of e-cigarettes by teens is deeply troubling. It may become lifelong addicted(上瘾). Besides, we still don't yet understand the long—term effects(作用) of e-cigarettes. 根据材料内容,选择最佳答案。

61. According to the survey, how many American teenagers smoked in 2000?

A 9 percent. B 23 percent. C 4.7 percent. D 10percent.

62. Which of the following disease may not be caused by cigarettes?

A skin disease B cancer C lung disease D heart disease

63. What is the aim of the campaign of the US Anti-smoking Organization?

A To end the production of cigarettes. B To criticize those children who smoke.

C To protect the rights of non-smokers. D To make an effort to end teenage smoking.

64. The und

青海中考时间

erlined word “campaign” means _________.

A activityB newspaper C movie D officer

65. What do we know about e-cigarettes?

A E-cigarettes are becoming popular among teenagers.

B School students like e-cigarettes more than adults do.

C People won't get addicted to e-cigarettes.

D E-cigarettes have bad effects on people's health.

If you are not happy with China's high Internet fees and slow speed, you are not alone. So is Premier Li Keqiang. On April 14, he said in a meeting that the government should speed up the Internet and lower the fees.

“The first question people ask at a new place is ‘Is there WI-FI?’ because Internet service fees are too high,” said Premier Li. According to recent survey by CCTV, the average cost of 1 GB mobile Internet data per month in China is 100 Yuan, while it is only 60 Yuan in the US and 40 in Japan.

However, high prices don't necessarily mean good service. The average Internet speed in China was 4.25 Mbps(兆比特每秒) in late 2014. South Korea had the fastest average Internet speed-25.3 Mbps. People can download a 1 GB movie within 6 minutes in South Korea, but in China it would take half an hour.

To improve Internet services, the key is to build more fiber(光纤) networks. Through them we can send text, pictures and videos globally in less than a second, which offer high speed Internet. Besides, the lack of market competition is another problem. <u>Having more operators(运营商) besides China Unicom and China Telecom may lower the prices.</u> 根据材料内容,选择最佳答案。

66. Why do people always ask for WI-FI at a new place in China?

A Because they can't use internet without WI-FI.

B Because they can communicate with their families.

篇二:青海2015中考数学试题(解析版)

2015年青海省中考数学试卷

一、填空题(本大题共12小题15空,每空2分,共30分)

1.(4分).﹣的绝对值是

,的算术平方根是

考点: 实数的性质;算术平方根.

分析: 根据负数的绝对值等于它的相反数进行计算;根据算术平方根的定义进行解答. 解答: 解:﹣故答案为:; 的绝对值是,的算术平方根是, 点评: 本题考查了算术平方根的定义、绝对值的定义.注意一个正数的算术平方根是正数,0的算术平方根是0;负数没有算术平方根.

2.(4分).4x?(﹣2xy)= ﹣8x ;分解因式:xy﹣4x= x(y+2)(y﹣2) .

考点: 提公因式法与公式法的综合运用;单项式乘单项式.

2分析: 4x?(﹣2xy):根据单项式与单项式相乘的法则,把系数相乘作为积的系数,相同

2的字母相乘作为积的因式,只在一个单项式中含有的字母也作为积的一个因式计算即可;xy

﹣4x:只需先提得公因子x,然后再运用平方差公式展开即可

2解答: 解:4x?(﹣2xy),

2=4×(﹣2)?(x?x)?y,

22=﹣8xy.

22xy﹣4x=x(y﹣4)=x(y+2)(y﹣2).

22故答案为:﹣8xy,x(y+2)(y﹣2).

点评: 本题考查了单项式与单项式的乘法,提公因式法与公式法的综合运用,关键是对平方差公式的掌握.

2222

3...已知关于x的一元二次方程2x﹣3mx﹣5=0的一个根是﹣1,则m= 1 .

考点: 一元二次方程的解.

2分析: 设一元二次方程2x﹣3mx﹣5=0的另一个根a,利用根与系数的关系先求出a,再

得利用根与系数的关系先求出m即可. 2

解答: 解:∵设一元二次方程2x﹣3mx﹣5=0的另一个根a,

∴a×(﹣1)=﹣,解得a=, ∴+(﹣1)=,解得m=1. 2

故答案为:1.

点评: 本题主要考查了一元二次方程的解,解题的关键是灵活运用根与系数的关系.

4...我省具有发展太阳能光伏发电产业得天独厚的条件.截止2015年,我省光伏并网发电容量将超过5000000千瓦,该数字用科学记数法可以表示为 5×10 千瓦.

考点: 科学记数法—表示较大的数.

n分析: 科学记数法的表示形式为a×10的形式,其中1≤|a|<10,n为整数.确定n的值时,

要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数. 6解答: 解:5000000千瓦用科学记数法可以表示为5×10千瓦,

6故答案为:5×10

n点评: 此题考查了科学记数法的表示方法.科学记数法的表示形式为a×10的形式,其中

1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.

5...如图,直线a∥b,直线l与a相交于点P,与直线b相交于点Q,且PM垂直于l,若∠1=58°,则∠2= 32° .

6

考点: 平行线的性质.

分析: 由平行线的性质得出∠3=∠1=58°,由垂直的定义得出∠MPQ=90°,即可得出∠2的度数.

解答: 解:如图所示:

∵a∥b,∴∠3=∠1=58°,

∵PM⊥l,

∴∠MPQ=90°,

∴∠2=90°﹣∠3=90°﹣58°=32°;

故答案为:32°.

点评: 本题考查了平行线的性质、垂线的定义、角的互余关系;熟练掌握平行线的性质,弄清各个角之间的关系是解决问题的关键.

6...若实数m,n满足(m﹣1)+=0,则(m+n)=

考点: 非负数的性质:算术平方根;非负数的性质:偶次方.

5分析: 根据非负数的性质可求出m、n的值,进而可求出(m+n)的值. 25

解答: 解:由题意知,

m,n满足(m﹣1)+=0,

∴m=1,n=﹣2,

55∴(m+n)=(1﹣2)=﹣1.

故答案为:﹣1.

点评: 此题主要考查了非负数的性质,初中阶段有三种类型的非负数:(1)绝对值;(2)偶次方;(3)二次根式(算术平方根).当它们相加和为0时,必须满足其中的每一项都等于0.根据这个结论可以求解这类题目.

7...如图,三个小正方形的边长都为1,则图中阴影部分面积的和是

π).

2

考点: 扇形面积的计算.

专题: 压轴题.

分析: 阴影部分可看成是圆心角为135°,半径为1是扇形.

解答: 解:根据图示知,∠1+∠2=180°﹣90°﹣45°=45°,

∵∠ABC+∠ADC=180°,

∴图中阴影部分的圆心角的和是90°+90°﹣∠1﹣∠2=135°,

∴阴影部分的面积应为:S=故答案是:.

=.

点评: 本题考查学生的观察能力及计算能力.求不规则的图形的面积,可以转化为几个规则图形的面积的和或差来求.

8...若将等腰直角三角形AOB按如图所示放置,OB=2,则点A关于原点对称的点的坐标为 (﹣1,﹣1) .

考点: 关于原点对称的点的坐标.

分析: 过点A作AD⊥OB于点D,根据等腰直角三角形的性质求出OD及AD的长,故可得出A点坐标,再由关于原点对称的点的坐标特点即可得出结论.

解答: 解:过点A作AD⊥OB于点D,

∵△AOB是等腰直角三角形,OB=2,

∴OD=AD=1,

∴A(1,1),

∴点A关于原点对称的点的坐标为(﹣1,﹣1).

故答案为(﹣1,﹣1).

点评: 本题考查的是关于原点对称的点的坐标特点,熟知等腰直角三角形的性质是解答此题的关键.

9...如图,点O为

∠D= 28° .

所在圆的圆心,∠BOC=112°,点D在BA的延长线上,AD=AC,则

考点: 圆周角定理;等腰三角形的性质.

分析: 由AD=AC,可得∠ACD=∠ADC,由∠BAC=∠ACD+∠ADC=2∠D,可得∠BAC的度数,由∠D=∠BAC即可求解.

解答: 解:∵AD=AC,

∴∠ACD=∠ADC,

∵∠BAC=∠ACD+∠ADC=2∠D,

∴∠BAC=∠BOC=×112°=56°,

∴∠D=∠BAC=28°.

故答案为:28°.

点评: 本题主要考查了圆周角及等腰三角形的性质,解题的关键是找出∠D与∠BOC的关系.

10...如图,点B,F,C,E在同一直线上,BF=CE,AB∥DE,请添加一个条件,使△ABC≌△DEF,这个添加的条件可以是(只需写一个,不添加辅助线).

考点: 全等三角形的判定.

专题: 开放型.

分析: 求出BC=EF,∠ABC=∠DEF,根据SAS推出两三角形全等即可.

解答: 解:AC=DF,

理由是:∵BF=CE,

∴BF+FC=CE+FC,

∴BC=EF,

∵AB∥DE,

∴∠ABC=∠DEF,

在△ABC和△DEF中,

∴△ABC≌△DEF(SAS),

故答案为:AC=DF.

点评: 本题考查了全等三角形的判定的应用,注意:全等三角形的判定定理有SAS,ASA,AAS,SSS,答案不唯一.

11.在一个不透明的袋子中装有红白两种颜色的球(形状大小质地完全相同)共25个,其中白球有5个.每次从中随机摸出一个球,并记下颜色后放回,那么从袋子中随机摸出一个红球的概率是

考点: 概率公式.

分析: 根据袋中共有25个球,每个球被摸到的机会是均等的,利用概率公式即可解答. 解答: 解:∵袋子中装有20个红球和5个白球,

∴根据概率公式,从袋子中摸出一个红球的概率P=故答案为:. =; 点评: 此题考查了概率公式:如果一个随机事件有以下特征,(1)试验中所有可能出现的基本事件有有限个;(2)每个基本事件出现的可能性相等,则可用概率公式计算.

篇三:2015年青海中考数学解析

2015年青海省中考数学解析版

一、填空题(本大题共12小题15空,每空2分,共30分)

1.(4分).﹣的绝对值是

,的算术平方根是

考点: 实数的性质;算术平方根.

分析: 根据负数的绝对值等于它的相反数进行计算;根据算术平方根的定义进行解答. 解答: 解:﹣故答案为:的绝对值是,的算术平方根是, ;

点评: 本题考查了算术平方根的定义、绝对值的定义.注意一个正数的算术平方根是正数,0的算术平方根是0;负数没有算术平方根.

2.(4分).4x?(﹣2xy)= ﹣8xy ;分解因式:xy﹣4x= x(y+2)(y﹣2) .

考点: 提公因式法与公式法的综合运用;单项式乘单项式. 2222

分析: 4x?(﹣2xy):根据单项式与单项式相乘的法则,把系数相乘作为积的系数,相同

2的字母相乘作为积的因式,只在一个单项式中含有的字母也作为积的一个因式计算即可;xy

﹣4x:只需先提得公因子x,然后再运用平方差公式展开即可

解答: 解:4x?(﹣2xy),

2=4×(﹣2)?(x?x)?y,

22=﹣8xy.

22xy﹣4x=x(y﹣4)=x(y+2)(y﹣2).

22故答案为:﹣8xy,x(y+2)(y﹣2).

点评: 本题考查了单项式与单项式的乘法,提公因式法与公式法的综合运用,关键是对平方差公式的掌握.

3...已知关于x的一元二次方程2x﹣3mx﹣5=0的一个根是﹣1,则m= 1 .

考点: 一元二次方程的解. 222

分析: 设一元二次方程2x﹣3mx﹣5=0的另一个根a,利用根与系数的关系先求出a,再得利用根与系数的关系先求出m即可.

解答: 解:∵设一元二次方程2x﹣3mx﹣5=0的另一个根a,

∴a×(﹣1)=﹣,解得a=, ∴+(﹣1)=,解得m=1. 22

故答案为:1.

点评: 本题主要考查了一元二次方程的解,解题的关键是灵活运用根与系数的关系.

4...我省具有发展太阳能光伏发电产业得天独厚的条件.截止2015年,我省光伏并网发电容量将超过5000000千瓦,该数字用科学记数法可以表示为 5×10 千瓦.

考点: 科学记数法—表示较大的数. 6分析: 科学记数法的表示形式为a×10的形式,其中1≤|a|<10,n为整数.确定n的值时,要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数.

解答: 解:5000000千瓦用科学记数法可以表示为5×10千瓦,

6故答案为:5×10

n点评: 此题考查了科学记数法的表示方法.科学记数法的表示形式为a×10的形式,其

中1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.

5...如图,直线a∥b,直线l与a相交于点P,与直线b相交于点Q,且PM垂直于l,若∠1=58°,则∠2= 32° .

6n

考点: 平行线的性质.

分析: 由平行线的性质得出∠3=∠1=58°,由垂直的定义得出∠MPQ=90°,即可得出∠2的度数.

解答: 解:如图所示:

∵a∥b,∴∠3=∠1=58°,

∵PM⊥l,

∴∠MPQ=90°,

∴∠2=90°﹣∠3=90°﹣58°=32°;

故答案为:32°.

点评: 本题考查了平行线的性质、垂线的定义、角的互余关系;熟练掌握平行线的性质,弄清各个角之间的关系是解决问题的关键.

6...若实数m,n满足(m﹣1)+=0,则(m+n)= ﹣1 .

考点: 非负数的性质:算术平方根;非负数的性质:偶次方. 25

分析: 根据非负数的性质可求出m、n的值,进而可求出(m+n)的值. 5

解答: 解:由题意知,

m,n满足(m﹣1)+

∴m=1,n=﹣2,

552=0, ∴(m+n)=(1﹣2)=﹣1.

故答案为:﹣1.

点评: 此题主要考查了非负数的性质,初中阶段有三种类型的非负数:(1)绝对值;(2)偶次方;(3)二次根式(算术平方根).当它们相加和为0时,必须满足其中的每一项都等于0.根据这个结论可以求解这类题目.

7...如图,三个小正方形的边长都为1,则图中阴影部分面积的和是

π).

(结果保留

考点: 扇形面积的计算.

专题: 压轴题.

分析: 阴影部分可看成是圆心角为135°,半径为1是扇形.

解答: 解:根据图示知,∠1+∠2=180°﹣90°﹣45°=45°,

∵∠ABC+∠ADC=180°,

∴图中阴影部分的圆心角的和是90°+90°﹣∠1﹣∠2=135°,

∴阴影部分的面积应为:S=故答案是:.

=.

点评: 本题考查学生的观察能力及计算能力.求不规则的图形的面积,可以转化为几个规则图形的面积的和或差来求.

8...若将等腰直角三角形AOB按如图所示放置,OB=2,则点A关于原点对称的点的坐标为 (﹣1,﹣1) .

考点: 关于原点对称的点的坐标.

分析: 过点A作AD⊥OB于点D,根据等腰直角三角形的性质求出OD及AD的长,故可得出A点坐标,再由关于原点对称的点的坐标特点即可得出结论.

解答: 解:过点A作AD⊥OB于点D,

∵△AOB是等腰直角三角形,OB=2,

∴OD=AD=1,

∴A(1,1),

∴点A关于原点对称的点的坐标为(﹣1,﹣1).

故答案为(﹣1,﹣1).

点评: 本题考查的是关于原点对称的点的坐标特点,熟知等腰直角三角形的性质是解答此题的关键.

9...如图,点O为

D= 28° .

所在圆的圆心,∠BOC=112°,点D在BA的延长线上,AD=AC,则∠

考点: 圆周角定理;等腰三角形的性质.

分析: 由AD=AC,可得∠ACD=∠ADC,由∠BAC=∠ACD+∠ADC=2∠D,可得∠BAC的度数,由∠D=∠BAC即可求解.

解答: 解:∵AD=AC,

∴∠ACD=∠ADC,

∵∠BAC=∠ACD+∠ADC=2∠D,

∴∠BAC=∠BOC=×112°=56°,

∴∠D=∠BAC=28°.

故答案为:28°.

点评: 本题主要考查了圆周角及等腰三角形的性质,解题的关键是找出∠D与∠BOC的关系.

10...如图,点B,F,C,E在同一直线上,BF=CE,AB∥DE,请添加一个条件,使△ABC≌△DEF,这个添加的条件可以是 AC=DF (只需写一个,不添加辅助线).

考点: 全等三角形的判定.

专题: 开放型.

分析: 求出BC=EF,∠ABC=∠DEF,根据SAS推出两三角形全等即可.

解答: 解:AC=DF,

理由是:∵BF=CE,

∴BF+FC=CE+FC,

∴BC=EF,

∵AB∥DE,

∴∠ABC=∠DEF,

在△ABC和△DEF中,

∴△ABC≌△DEF(SAS),

故答案为:AC=DF.

点评: 本题考查了全等三角形的判定的应用,注意:全等三角形的判定定理有SAS,ASA,AAS,SSS,答案不唯一.

11.在一个不透明的袋子中装有红白两种颜色的球(形状大小质地完全相同)共25个,其中白球有5个.每次从中随机摸出一个球,并记下颜色后放回,那么从袋子中随机摸出一个红球的概率是

考点: 概率公式.

分析: 根据袋中共有25个球,每个球被摸到的机会是均等的,利用概率公式即可解答. 解答: 解:∵袋子中装有20个红球和5个白球,

∴根据概率公式,从袋子中摸出一个红球的概率P=故答案为:. =; 点评: 此题考查了概率公式:如果一个随机事件有以下特征,(1)试验中所有可能出现的基本事件有有限个;(2)每个基本事件出现的可能性相等,则可用概率公式计算.

标签:青海 中考 时间 2017年青海中考时间 2016青海西宁中考时间