2011—2012学年重庆外国语学校九年级上学期半期考试化学卷

适用年级:初三
试卷号:307229

试卷类型:期中
试卷考试时间:2011/11/23

1.单选题(共6题)

1.
下面能量转化过程中,主要发生了化学变化的是()
A.蜡烛照明B.水力发电C.太阳能供热D.电热器取暖
2.
今年“六•五”世界环境日中国主题是“污染减排与环境友好型社会”。推动污染减排、建设环境友好型社会是全社会共同的责任。下列物质中,属于大气主要污染物,必须减少排放的是(  )
A.SO2B.CO2C.N2D.O2
3.
近年来汽车轮胎中常以空气中含量最多的气体作为填充气,这种气体是
A.氧气B.氮气C.二氧化碳D.稀有气体
4.
在有关水净化的探究活动中,小星将浑浊的河水倒入烧杯中,先加入明矾粉末搅拌,静置后,下一步小星应该进行的操作是
A.溶解B.过滤C.吸附D.消毒
5.
下列气体遇到明火可能发生爆炸的是
A.纯氧气B.二氧化碳C.混有空气的氢气D.纯净的氢气
6.
小明同学在化学课上提出可以用澄清的石灰水来检验人呼出的气体是否含有二氧化碳气体。就这一过程而言属于科学探究环节中的(   )
A.建立假设B.收集证据C.设计实验D.做出结论

2.选择题(共3题)

7.

    An artist went to a beautiful place of the country for a holiday, and stayed with a farmer. Every day he went out and painted from morning to evening. When it got dark, he came back to the farm and had a good dinner before he went to bed.
    At the end of his holiday he wanted to pay the farmer, but the farmer said, “No, I don't want money but give me one of your pictures. What is money? In a week it will all be finished, but your painting will be here.”
    The artist was very pleased and thanked the farmer for saying such kind words. The farmer smiled and said, “I have a son in London. He wants to become an artist. When he comes here next month, I will show him your picture, and then he will not want to be an artist any more, I believe.”

8.

——We like Zhang Lili, the most beautiful teacher .
——Yes, she is ____________ popular with her students.

9.

    Beijing Opera is also called Peking Opera. It came into being after 1790 when the famous four Anhui opera troupes(戏班) came to Beijing. Its music and singing(唱腔) come from Xipi and Erhuang in Anhui and Hubei. Its costumes are all fascinating and artistic. It is the highest expression of the Chinese culture. It's full of famous stories, beautiful facial paintings, and wonderful gestures and fighting. This kind of opera is very popular with Chinese people.
    There are four main roles in Beijing Opera: Sheng, Dan, Jing and Chou. Sheng is the leading male(男性) actor. For example, a Wusheng is a soldier or fighter. A Xiaosheng is a young man. A Laosheng is an old man. Dan is the female(女性) role. Jing, mostly male, is the face-painted role and Chou is the comedy actor or clown.
    Stories in Beijing Opera are very interesting. Some of them are from the history book, but most of them are from the literature, especially famous novels. The people in the story usually have some disagreements. They become angry and unhappy. They are sad and lonely. Sometimes they are nervous and worried. Then they find a way to make peace. The stories usually end with happiness and laughter and people are all happy in the end.

3.填空题(共1题)

10.
某化学实验小组在实验室中对一烧杯浑浊的河水按下列步骤进行了净化,请完成下列空白:
(1)先向烧杯中加入适量明矾粉末,这是利用明矾溶于水后生成的胶状物对杂质的吸附,使悬浮于水中的杂质 达到净水的目的。
(2) 再进行过滤,
①过滤操作所必需的仪器有(填序号)  。2’
A烧杯、B酒精灯、C铁架台(带铁圈)、D试管、E玻璃棒、F漏斗、G托盘天平.
②玻璃棒的作用是  
(3)然后用活性炭除去水中异味,可用 来区分硬水和软水。
试卷分析
  • 【1】题量占比

    单选题:(6道)

    选择题:(3道)

    填空题:(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:2

    7星难题:0

    8星难题:5

    9星难题:0