2013-2014学年河北省滦南县八年级下学期期中考试数学试卷(带解析)

适用年级:初二
试卷号:592557

试卷类型:期中
试卷考试时间:2017/7/26

1.单选题(共7题)

1.
已知坐标平面内点M( a,  b )在第三象限,那么点N( b, -a )在(   )
A.第四象限B.第三象限C.第二象限D.第一象限
2.
设点轴上,且位于原点的左侧,则下列结论正确的是(   )
A.为一切实数B.
C.为一切实数,D.
3.
在平面直角坐标系中,一个图案上各个点的横坐标和纵坐标分别加正数a,则所得的图案与原来图案相比(  )
A.形状不变,大小扩大到原来的a倍
B.图案向右平移了a个单位
C.图案向上平移了a个单位
D.图案向右平移了a个单位,并且向上平移了a个单位
4.
若点P()在第二象限且到轴的距离是2,到轴的距离是3,则点P的坐标为 (  )
A.(-2,3) B.(2,-3)C.(-3,2)D.(3,-2)
5.
为了了解某校九年级400名学生的体重情况,从中抽取50名学生的体重进行统计分析,在这个问题中,样本是指(  )
A.400B.被抽取的50名学生
C.400名学生D.被抽取的50名学生的体重
6.
下列调查中,适宜采用全面调查(普查)方式的是()
A.对我国首架大型民用飞机各零部件质量的检查
B.调查我国网民对某件事的看法
C.对我市中学生心理健康现状的调查
D.调查我市冷饮市场雪糕质量情况
7.
某超市统计了某个时间段顾客在收银台排队付款的等待时间,并绘制成频数分布直方图(图中等待时间6分钟到7分钟表示大于或等于6分钟而小于7分钟,其他类同).这个时间段内顾客等待时间不少于4分钟的人数为()
A.8B.16C.19D.32

2.选择题(共13题)

8.完形填空

    The day before Christmas I pulled into a store parking lot and counted my money again. It wasn't much. I 1 being poor, not having enough to 2 my small children a few simple toys. As I was 3 I noticed the Salvation Army (救世军) bell ringer at the4. I felt bad again because I didn't feel I could 5 anything to give him. I started walking towards the entrance 6 two cars entered empty parking spaces in front of me. The first was a7, new Cadillac which became the 8 of me the moment I saw it. “How 9 I thought, “would it be to have enough money to buy a car like that!” The second car10, was an ancient car more shabby than the one I was driving.

    A man got out of the Cadillac and hurried into the store 11 past the bell ringer without a second 12. Out of the old car came a young mother with three small children following 13 behind her. Her clothes looked as 14 as her car, yet she slopped at the entrance and 15 a bill. In that second a(n)16 touched me, my envy and dislike 17 me, and all the love and joy filled me. I fished a bill out of my own purse18 it in the Salvation Army kettle, and wished the 19 a “Merry Christmas!”

    Now I felt I was a poor man hut rich on the 20. After finding a few things for my kids, I drove home with my heart singing.

9.完形填空

    The day before Christmas I pulled into a store parking lot and counted my money again. It wasn't much. I 1 being poor, not having enough to 2 my small children a few simple toys. As I was 3 I noticed the Salvation Army (救世军) bell ringer at the4. I felt bad again because I didn't feel I could 5 anything to give him. I started walking towards the entrance 6 two cars entered empty parking spaces in front of me. The first was a7, new Cadillac which became the 8 of me the moment I saw it. “How 9 I thought, “would it be to have enough money to buy a car like that!” The second car10, was an ancient car more shabby than the one I was driving.

    A man got out of the Cadillac and hurried into the store 11 past the bell ringer without a second 12. Out of the old car came a young mother with three small children following 13 behind her. Her clothes looked as 14 as her car, yet she slopped at the entrance and 15 a bill. In that second a(n)16 touched me, my envy and dislike 17 me, and all the love and joy filled me. I fished a bill out of my own purse18 it in the Salvation Army kettle, and wished the 19 a “Merry Christmas!”

    Now I felt I was a poor man hut rich on the 20. After finding a few things for my kids, I drove home with my heart singing.

10.完形填空

    The day before Christmas I pulled into a store parking lot and counted my money again. It wasn't much. I 1 being poor, not having enough to 2 my small children a few simple toys. As I was 3 I noticed the Salvation Army (救世军) bell ringer at the4. I felt bad again because I didn't feel I could 5 anything to give him. I started walking towards the entrance 6 two cars entered empty parking spaces in front of me. The first was a7, new Cadillac which became the 8 of me the moment I saw it. “How 9 I thought, “would it be to have enough money to buy a car like that!” The second car10, was an ancient car more shabby than the one I was driving.

    A man got out of the Cadillac and hurried into the store 11 past the bell ringer without a second 12. Out of the old car came a young mother with three small children following 13 behind her. Her clothes looked as 14 as her car, yet she slopped at the entrance and 15 a bill. In that second a(n)16 touched me, my envy and dislike 17 me, and all the love and joy filled me. I fished a bill out of my own purse18 it in the Salvation Army kettle, and wished the 19 a “Merry Christmas!”

    Now I felt I was a poor man hut rich on the 20. After finding a few things for my kids, I drove home with my heart singing.

11.任务型阅读

    Lots of people find it hard to get up in the morning and put the blame on the alarm clock. In fact, the key to easy morning wake-up lies in resting your body clock {#blank#}1{#/blank#} Here is how to make one.

    {#blank#}2{#/blank#} In order to make a change, you need to decide why it's important. Do you want to get up in time to have breakfast with your family, get in some exercise or just be better prepared for your day? Once you are clear about your reason, tell your family or roommates about the change you want to make.

    Rethink mornings. Now that you know why you want to wake up, consider re-arranging your morning activities. If you want time to have breakfast with your family, save some time the night before by setting out clothes, shoes, and bags{#blank#}3{#/blank#} That's a quarter-hour more you could be sleeping if you bought a coffee maker with a timer.

    Keep your sleep/wake schedule on weekends. If you're tired out by Friday night, sleeping in on Saturday could sound wonderful. But compensating (弥补) on the weekends actually feeds into your sleepiness the following week, a recent study found{#blank#}4{#/blank#}

    Keep a record and evaluate it weekly. Keep track of your efforts and write down how you feel. After you've tried a new method for a week, take a look at your record.{#blank#}5{#/blank#} If rot, take another look at other methods you could try.

A. Gel a sleep specialist.

B. Find the right motivation.

C. A better plan for sleep can help.

D. And consider setting a second alarm.

E. If the steps you take arc working, keep it up.

F. Slick to your set bedtime and wake-up time, no matter the clay it is.

G. Reconsider the 15 minutes you spend in line at the café to get coffee.

12.The White Horse Temple first gained importance _________ Buddhism spread from here to other parts of China and Asia.
13.进入高考复习紧张阶段,为帮助学生健康成长,学校英文报开辟了“HEART-TO-HEART”专栏。假设你是该栏目的编辑李华,收到一封署名为Worried的求助信。信中该同学向你诉说了自己的困扰:近日由于压力很大,经常发脾气,使正常的学习和生活受到了影响。请用英文给该同学写一封回信。

内容要点如下:

1).表示理解并给予安慰;

2).提出建议并说明理由:向朋友倾诉,加强户外运动,保持积极心态等。

注意:

1).词数100左右;

2).信中不能出现与本人相关的信息;

3).信的开头与结尾已为你拟好,不计入总词数。

Hi, Worried,

    I'm sorry to know that you're having such a bad time at the moment.


                                                                                                                                                Yours,

                                                                                                                                                Li Hua

14.语法填空

MY Travel Experience in China

    During the summer holidays I visited a variety of regions in China.

My first stop was Beijing and of course the Great Wall. Without question it lived up to my {#blank#}1{#/blank#} (expect).

    After a long journey, I reached Yunnan. With{#blank#}2{#/blank#}(it) minority villages and impressive landscapes, Yunnan had a lot to offer. One of my {#blank#}3{#/blank#} (enjoy) moments in Yunnan was during my visit to The Tiger Leaping Gorge. The climb over the gorge was at times exhausting {#blank#}4{#/blank#} always breathtaking. The views couldn't {#blank#}5{#/blank#} (imagine) in their beauty and they {#blank#}6{#/blank#} (leave) me with many great memories.

    After taking a boat from the mainland I arrived at {#blank#}7{#/blank#} island province of Hainan. There I visited Baihua Waterfall. Floating on a pool of water at the base and looking up at the waterfall with a background of blue sky was one of the most {#blank#}8{#/blank#} (relax) experiences of my life.

    Throughout China there are many ancient buildings and in particular ancient towns. Lijiang and Dali both have glorious {#blank#}9{#/blank#} (example) of this. It was remarkable to step back in time and get an idea of{#blank#}10{#/blank#} China might have looked like all those years ago. I thought the buildings were beautiful and full of history.

    I had a wonderful time! China is both fascinating and beautiful!

15.语法填空

MY Travel Experience in China

    During the summer holidays I visited a variety of regions in China.

My first stop was Beijing and of course the Great Wall. Without question it lived up to my {#blank#}1{#/blank#} (expect).

    After a long journey, I reached Yunnan. With{#blank#}2{#/blank#}(it) minority villages and impressive landscapes, Yunnan had a lot to offer. One of my {#blank#}3{#/blank#} (enjoy) moments in Yunnan was during my visit to The Tiger Leaping Gorge. The climb over the gorge was at times exhausting {#blank#}4{#/blank#} always breathtaking. The views couldn't {#blank#}5{#/blank#} (imagine) in their beauty and they {#blank#}6{#/blank#} (leave) me with many great memories.

    After taking a boat from the mainland I arrived at {#blank#}7{#/blank#} island province of Hainan. There I visited Baihua Waterfall. Floating on a pool of water at the base and looking up at the waterfall with a background of blue sky was one of the most {#blank#}8{#/blank#} (relax) experiences of my life.

    Throughout China there are many ancient buildings and in particular ancient towns. Lijiang and Dali both have glorious {#blank#}9{#/blank#} (example) of this. It was remarkable to step back in time and get an idea of{#blank#}10{#/blank#} China might have looked like all those years ago. I thought the buildings were beautiful and full of history.

    I had a wonderful time! China is both fascinating and beautiful!

16.阅读理解

    The popular smartphone application Instagram (照片分享) has changed the way we look at photography, even our world. The photo-worthy moments we share serve as an important function in cultivating the photographic artistic eye.

    Instagram has got people to start noticing the art in their everyday life. It has also allowed us to share the artful moments in our lives with others. Clearly, making people focus on beautiful moments in their lives and how to share them is a positive takeaway from Instagram.

    Not only has Instagram changed the way we look at things around us, but it has also changed the way people view professional photography. Instagram has turned everyone with a smartphone into an artist. Opening up art to the general community is a groundbreaking (创新的) aspect of this application. Making artistic attempts accessible for everyone to discover their artistic talents and explore creatively is something that has made people find the beauty in the everyday. However, this accessibility has also created questioning around art and respect deserved by professional photography.

    The art in a professional photograph versus an Instagram can sometimes be hard to notice at a quick glance. But photographs taken by true professional photographers hold something that Instagram's can't match in terms of photographic quality, or advanced compositional knowledge.

    This is not to say Instagram is a lesser art. Aesthetic qualities of art are a personal matter and how good an artwork is depends on personal preferences. Good is a very arbitrary term in the art world. For example, I may find one photo more pleasing than another, but not everyone has to agree with me.

    The point I am trying to make is that professional photography should not be lost, but instead approached with a new, enhanced level of respect and admiration—despite how accessible, common and fun Instagram now makes the taking and sharing of photos.

17.阅读理解

    Christmas was near a season that we took seriously in our house. But a week or so before the 25th, my father would give each of his children $ 20. This was the 1970s, and $ 20 was quite a bit of money.

    But I saw it differently. My father trusted me to have the smart to spend money wisely. Even better, he gave me the means to get it. On a very basic level, my father was giving me a shopping spree (狂欢) every year.. But he was also giving me charge over my own fun, trusting my ability to manage money and making me feel like a grown-up. He didn't buy me Sherlock Holmes, but he gave me the means to walk into the bookstore and choose it for myself, so it felt like a gift from him.

    My mother had a gift for giving me what I needed, usually right at the moment I needed it most. This was when I was 25, I failed at being an adult on my very first try. I had quitted my previous job but had no new one. But when my mother paid me a visit, I put on a good show, telling her I had started my own company.

    My mother knew that I was trying hard and failing at that time. It wasn't until after she left that I noticed at the foot of my bed an envelope thick with cash. She knew how desperately I needed it. She knew that had she just shown up with groceries, or offered to pay my rent, she would have made me feel much worse. The cold, hard cash meant she was helping me. And, funnily enough, the distance with which she gave the gift felt like she was giving me space to fix my life and preserve my dignity. My mother and father both did the same thing. One was giving me the means to take my own decisions, and the other was giving me a second chance when those decisions had cost me dearly.

18.阅读理解

    Christmas was near a season that we took seriously in our house. But a week or so before the 25th, my father would give each of his children $ 20. This was the 1970s, and $ 20 was quite a bit of money.

    But I saw it differently. My father trusted me to have the smart to spend money wisely. Even better, he gave me the means to get it. On a very basic level, my father was giving me a shopping spree (狂欢) every year.. But he was also giving me charge over my own fun, trusting my ability to manage money and making me feel like a grown-up. He didn't buy me Sherlock Holmes, but he gave me the means to walk into the bookstore and choose it for myself, so it felt like a gift from him.

    My mother had a gift for giving me what I needed, usually right at the moment I needed it most. This was when I was 25, I failed at being an adult on my very first try. I had quitted my previous job but had no new one. But when my mother paid me a visit, I put on a good show, telling her I had started my own company.

    My mother knew that I was trying hard and failing at that time. It wasn't until after she left that I noticed at the foot of my bed an envelope thick with cash. She knew how desperately I needed it. She knew that had she just shown up with groceries, or offered to pay my rent, she would have made me feel much worse. The cold, hard cash meant she was helping me. And, funnily enough, the distance with which she gave the gift felt like she was giving me space to fix my life and preserve my dignity. My mother and father both did the same thing. One was giving me the means to take my own decisions, and the other was giving me a second chance when those decisions had cost me dearly.

19.阅读理解

    English is full of colorful phrases to describe shyness. Someone shy might be called shrinking violet or a wallflower, while for especially nervous types we have the curious expression: they wouldn't say boo to a goose.

    None of these are traditionally seen as positive descriptions, even if you like geese. In a culture of go-getting, high achievers, shy people don't come first. Or that's what the self-help industry would have you believe. Bookshops are filled with vital tomes(巨著) that promise to help beat social fears and find success in life, love and business. That is why one book, Shrinking Violets: A Field Guide to Shyness, bucks the trend. It became a sudden success across English-language media recently for its new take-on shyness.

    Author Joe Moran says that despite struggling with shyness and longing for loneliness all his life, being shy can also be "a gift". Freed from the constant urge to participate and compete in social situations, people are liberated to look at the world in new ways, and gain fresh insights.

    Indeed, many of the world's great thinkers and artists are introverts(内向的人). Scientists Charles Darwin and Albert Einstein preferred their own company; actress Keira Knightley often finds herself tongue-tied at parties; and Harry Potter author JK Rowling claims she used to be too nervous to even borrow a pen.

    Moran told BBC Future: "I think shyness probably does turn you into an amateur anthropologist(人类学家), really-you are more likely to be an observer."

    So, while extroverts make all the noise, they don't necessarily have the best ideas.

    If you're shy, you've probably known this for a long time. You just don't shout about it.

20.任务型阅读

How to Build a Student's Self-Confidence

    Educating students means more than giving them academic knowledge. Simply knowing a correct response doesn't give a student the confidence to raise his hand to answer a question. Students perform best in constructive learning environments{#blank#}1{#/blank#}Provide leadership opportunities for students. Cultivate (培养) important characteristics, including responsibility and independence by assigning students to take different classroom roles. Suitable jobs include hall monitors, audio-visual assistants and classroom helpers.{#blank#}2{#/blank#}

Set achievable goals for each student.{#blank#}3{#/blank#}Engage in ongoing dialogue regarding your expectations and their individual progress. Reward students for meeting challenges, while persuading struggling students back on track.

    Give constructive feedback to help reduce weaknesses and strengthen strengths. Teach students that self-confidence isn't built from being harmed by praise. Remain honest with each student to encourage them to speak out their problems, instead of avoiding or denying their existence. Make corrections without damaging your students' confidence.

    Encourage students to set high standards for themselves.{#blank#}4{#/blank#}Reinforce(强化) this message with age-appropriate examples and literature. Provide consistent encouragement to students to show your commitment to their success.

    {#blank#}5{#/blank#}Realize that conquering difficult tasks builds mental toughness and fosters persistence. Relay this message to your students by asking each one to write a goal that focuses on improving a weak area. Help your students develop relevant attack plans.

A. Push students to improve their weaknesses.

B. Self-confidence games can help students of all ages.

C. Reassure students that they are capable of achieving greatness.

D. You can ease students' insecurities with various activities that build confidence.

E. They are especially useful in helping young children build success for their future.

F. Realize that overcoming self-doubt to achieve objectives helps build students' confidence.

G. Mastering some duties can help build confidence and erase fear of trying new experiences.

3.填空题(共7题)

21.
已知直角坐标系中的点A,点B的坐标分别为A(-2,6),B(0,-4),且P为AB的中点,若将线段AB向右平移3个单位后,与点P对应的点为Q,则点Q的坐标为
22.
.观察图形由(1)→(2)的变化过程,写出A、B对应点的坐标分别为
23.
根据如图所示的程序计算输出结果.若输入的 x 的值是,则输出的结果为_____.
24.
函数的自变量x的取值范围是__。
A.B.C.D.
25.
某校为了了解本校七年级学生课外阅读的喜好,随机抽取该校七年级部分学生进行问卷调査(每人只选一种书籍).下图是整理数据后绘制的两幅不完整的统计图,请你根据图中提供的信息解答下列问题:
(1)在扇形统计图中,“其他”所在扇形的圆心角等于   度;
(2)若该年级有600名学生,请你估计该年级喜欢“科普常识”的学生人数约是   
26.
为了增强抗旱能力,保证今年夏粮丰收,某村新建了一个蓄水池,这个蓄水池安装了两个进水管和一个出水管(两个进水管的进水速度相同)一个进水管和一个出水管的进出水速度如图1所示,某天0点到6点(至少打开一个水管),该蓄水池的蓄水量如图2所示,并给出以下三个论断:①0点到1点不进水,只出水;②1点到4点不进水,不出水;③4点到6点只进水,不出水.则一定正确的论断是________ .
27.
如图是统计学生跳绳情况的频数分布直方图,如果跳 75次以上(含75次)为达标,则达标学生所占比例为

4.解答题(共5题)

28.
平面直角坐标系中,三角形ABC的顶点都在网格点上。
(1)平移三角形ABC,使点C与坐标原点O是对应点,请画出平移后的三角形A′B′C′;
(2)写出A、B两点的对应点A′、B′的坐标;
(3)求出三角形ABC的面积。
29.
在平面直角坐标系中,将坐标为(0,0),(2,4),(2,0),(4,4)的点用线段依次连接起来形成一个图案:
(1)若这四个点的纵坐标若保持不变,横坐标变为原来的,所得图案与原来的图案相比有什么变化?
(2)横坐标不变,纵坐标分别减3,所得图案与原来图案相比有什么变化?
(3)横坐标、纵坐标分别变为原来的2倍,所得图形与原图形相比有什么变化?
30.
已知动点P以每秒2cm的速度沿如图所示的边框按从B⇒C⇒D⇒E⇒F⇒A的路径移动,相应的△ABP的面积S关于时间t的函数图象如图所示,若AB=6cm,试回答下列问题:
(1)动点P在线段 上运动的过程中△ABP的面积S保持不变.
(2)BC= cm;  CD= cm;   DE= cm;   EF= cm
(3)求出图乙中的a与b的值.
31.
如图,某中学为合理安排体育活动,在全校喜欢乒乓球、排球、羽毛球、足球、篮球五种球类运动的1000名学生中,随机抽取了若干名学生进行调查,了解学生最喜欢的一种球类运动,每人只能在这五种球类运动中选择一种.调查结果统计如下:

球类名称
乒乓球
排球
羽毛球
足球
篮球
人数
a
12
36
18
b
 
解答下列问题:
(1)本次调查中的样本容量是    
(2)a=    ,b=    
(3)试估计上述1000名学生中最喜欢羽毛球运动的人数.
32.
某移动通讯公司开设了两种通讯业务:“全球通”使用者先缴50元月租费,然后每通话1分钟,再付话费0.4元;“神舟行”不缴月租费,每通话1min付费0.6元.若一个月内通话x min,两种方式的费用分别为y1元和y2元.
(1)写出y1、y2与x之间的函数关系式;
(2)一个月内通话多少分钟,两种移动通讯费用相同;
(3)你能为用户设计一个方案,使用户合理地选择通信业务吗?
(4)某人估计一个月内通话300min,应选择哪种移动通讯合算些.
试卷分析
  • 【1】题量占比

    单选题:(7道)

    选择题:(13道)

    填空题:(7道)

    解答题:(5道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:3

    7星难题:0

    8星难题:6

    9星难题:10