2014届河北省保定市新市区江城中学九年级上学期期中考试化学试卷

适用年级:初三
试卷号:306898

试卷类型:期中
试卷考试时间:2013/12/23

1.单选题(共6题)

1.
下列变化过程中,不包含缓慢氧化的是
A.动植物的呼吸B.蜡烛的燃烧C.酒和醋的酿造D.食物的腐烂
2.
镁有“国防金属”的美誉。在元素周期表中,镁元素的信息如下图所示,对图中信息解释不正确的是
A.原子序数为12
B.核外电子数为 24
C.元素符合为Mg
D.相对原子质量为24.31
3.
下列物质在氧气中燃烧时,其集气瓶中需加少量沙子或水的是
A.红磷B.硫C.铁丝D.木炭
4.
空气中含量较多,且性质稳定的是()
A.氮气B.氧气C.二氧化碳D.水蒸气
5.
下图是电解水的实验装置,对该实验描述正确的是
A.正极产生的气体是氢气
B.电解过程中水分子没有发生改变
C.生成氧气、氢气的体积比约为2:1
D.该实验能证明水是由氢、氧元素组成
6.
对于人体必需元素,我们也要注意合理摄入,摄入不足或过量均不利于人体健康.下列有关几种人体必需元素对人体健康的影响说法正确的是
A.缺锌会引起佝偻病、骨质疏松B.缺钙会引起贫血
C.缺锌会引起智力低下、侏儒症D.缺铁会引起甲状腺肿大

2.选择题(共8题)

7.

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏子符号(∧),并在此符号下面写出该加的词。

删除:把多余的词用(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1. 每处错误及其修改均仅限一词;2  只允许修改10处,多者(从第11处起)不计分。

    Cars are everywhere. In big city and small towns, the preferred method of transportation is the automobile. People can get to where they need to go quickly and easy, and it has given a new kind of freedom to many people who may not have experienced it ago. But was driving really the best thing for our society? I argue that it is not. First, pollution was a serious problem, and more cars only make them worse. There is just not way to reduce pollution without decrease the number of cars on the road. Second, cars are very dangerous. Traffic accidents are responsible tens of thousands of deaths every year. Finally, cars are so expensive for most people to afford. However, that doesn't stop low-income families from spending the most of their money to pay for the family car.

8.

假定你是某国际学校的学生李华。最近,你校打算为同学们制作统一的校服,请你给外籍校长威尔逊先生写一封建议信,要点如下:1. 写信的目的:2. 对校服布料、款式等提出建议并说明理由。

注意:1. 词数100左右;2  可以适当增加细节,以使行文连贯;3  开头和结尾已给出,但不计入总词数。

Dear Mr. Wilson,

   

Yours sincerely,

Li Hua

9.为杜绝操作工手指损伤事故的发生,某厂家设计制造的切纸机,必需将两只手同时分别按住左、右开关,切纸机才能正常工作.下列电路设计中符合要求的是(   )
10.

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。作文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏词符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下画一横线,并在该词下面写出修改后的词。

注意:1. 每处错误及其修改均仅限一词;2. 只允许修改10处,多者(从第11处起)不计分。

    On the development of the Internet, people use computer to surf the Internet every day. The Internet made it easy for people to leave their own opinions on hot issues, and then some new words are creating. Zhai is a very popular word, which refers to the people who is staying at home all the time. They seldom go out to a real world. People can buy that they want on the Internet and the goods can be delivered to their homes, so more and more people like staying at home. Of course it's good for health. Get rid of the habit of staying at home can bring people a health life.

11.已知( {#mathml#}1a{#/mathml#} +ax)5﹣( {#mathml#}1b{#/mathml#} +bx)5的展开式中含x2与x3的项的系数的绝对值之比为1:6,则a2+b2的最小值为(   )
12.

下面四个图案中,不能由基本图案旋转得到的是(  )

13.

完形填空

    One summer, Aunt Betta and Uncle Bill invited me to travel with them back home to Pennsylvania. I had never been1Los Angeles and was eager to meet our relatives.

    Our first night, we drove through the desert, and then through roads cut through hills. The next day we went through the Rocky Mountains. It was2driving up long inclines(斜坡) with abrupt U-shape turns on the steep hillsides, then driving3slowly with great caution. Beyond Colorado, we drove through miles of 4, where I saw actual food being grown. I5some of the crops.

    In one small town we passed through, Aunt Betta decided I needed new6and took me to a country 7. I was used to8dresses and skirts. Now I had my first pair of jeans, a flannel shirt, shorts and a T-shirt. I loved them all.

    9 we reached our destination. Uncle Bill's aunt had a perfect little two-story house. The first thing I 10was a bed in a cute little room — for me! I looked forward to that. It would be like sleeping in a dollhouse. In the backyard, I saw red things11the back fence. Uncle Bill's uncle said, "I think you never ate a 12tomato in L.A." I hadn't. He 13picked one for me.

    I met all my new aunts, uncles and cousins. My cousins taught me how to do cartwheels (恻手翻) in the big front yard. Country people have more14, I thought.

    All the adults cried when we 15, but I took home all the 16of everything I'd seen. Back in L.A., my lungs hurt when I took a deep breath. I 17 the fresh air. I dreamed of homegrown tomatoes. My country clothes seemed out of 18, but I wore them anyway.

    I was two weeks late starting19, but I told my teachers only that I'd been in Pennsylvania and decided to 20all the rest to myself. If only they could have experienced everything that I did!

14.

完形填空

    One summer, Aunt Betta and Uncle Bill invited me to travel with them back home to Pennsylvania. I had never been1Los Angeles and was eager to meet our relatives.

    Our first night, we drove through the desert, and then through roads cut through hills. The next day we went through the Rocky Mountains. It was2driving up long inclines(斜坡) with abrupt U-shape turns on the steep hillsides, then driving3slowly with great caution. Beyond Colorado, we drove through miles of 4, where I saw actual food being grown. I5some of the crops.

    In one small town we passed through, Aunt Betta decided I needed new6and took me to a country 7. I was used to8dresses and skirts. Now I had my first pair of jeans, a flannel shirt, shorts and a T-shirt. I loved them all.

    9 we reached our destination. Uncle Bill's aunt had a perfect little two-story house. The first thing I 10was a bed in a cute little room — for me! I looked forward to that. It would be like sleeping in a dollhouse. In the backyard, I saw red things11the back fence. Uncle Bill's uncle said, "I think you never ate a 12tomato in L.A." I hadn't. He 13picked one for me.

    I met all my new aunts, uncles and cousins. My cousins taught me how to do cartwheels (恻手翻) in the big front yard. Country people have more14, I thought.

    All the adults cried when we 15, but I took home all the 16of everything I'd seen. Back in L.A., my lungs hurt when I took a deep breath. I 17 the fresh air. I dreamed of homegrown tomatoes. My country clothes seemed out of 18, but I wore them anyway.

    I was two weeks late starting19, but I told my teachers only that I'd been in Pennsylvania and decided to 20all the rest to myself. If only they could have experienced everything that I did!

3.填空题(共3题)

15.
用适当符号或化学式填写:
(1)一个氧原子 (2)三个二氧化碳分子 (3)一个亚铁离子
(4)地壳中含量最高的金属元素 (5)碳酸钙
(6)高锰酸钾中锰元素的化合价 (7)5个硫酸根离子  
(8)保持水化学性质的最小微粒是 。 +7
16.
测定空气中氧气体积分数的实验装置如下图(一)所示。在集气瓶内加入少量的水并五等分水面以上的容积,做上记号,关闭止水夹,通电使红磷燃烧。请回答下列问题:
    
(图一)   (图二)
(1)红磷燃烧的现象是    
(2)红磷燃烧的文字表达式 ,基本反应类型   
(3)冷却后,松开止水夹,你观察到的现象为     
(4)实验结论
(5)实验结束后,如果发现进入集气瓶内水的体积不足1/5的原因    
。(答出一点即可)
(6)红磷熄灭后,集气瓶内剩余的气体主要是
(7)实验一装置比实验二装置的优点是:    。(答出一点即可)
17.
2010年4月14日青海玉树发生了7.1级地震,震后当地生态环境和生活条件受到极大破坏,水源受到一定程度污染。灾区人们日常生活用水必需经过一系列的精心处理才能使用。
(1)向水样中加入明矾,经溶解、静置、_______(填操作名称),除去不溶性杂质,然后加入活性炭,利用其  性除去异味,再杀菌消毒,得到生活用水。
(2)欲判断得到的生活用水是硬水还是软水,可加入  进行检验,出现较多  现象的为硬水。生活中常通过   的方法降低水的硬度。
(3)水是生命之源,我们每个人都要爱护水资源。请你提出一条保护水资源的合理化建议:________________________。

4.实验题(共1题)

18.
实验室开放日,某化学兴趣小组的同学在老师的指导下,设计了如下实验装置进行气体制取和性质的探究,请回答有关问题:
    
A B     C D     E   F
试卷分析
  • 【1】题量占比

    单选题:(6道)

    选择题:(8道)

    填空题:(3道)

    实验题:(1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:4

    7星难题:0

    8星难题:3

    9星难题:3