九年级(初三)试题
材料一：党的十八大首次提出建设美丽中国，党的十八届五中全会提出的五大发展理念是：创新、协调、绿色、开放、共享。
材料二：在2017年两会政府工作报告中，李克强总理代表国务院布置了2017年重点工作任务，其中谈到：“加快改善生态环境特别是空气质量，市人民群众的迫切愿望，是可持续发展的内在要求。”
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（1） 请你列举宣传家乡美的四种活动方式。
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（2） 请你为建设美丽家乡，献计献策（至少3个）
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Join BCNC - Quincy Youth Center's College Access Program (CAP) What Is CAP? CAP is a program which tries to teach you everything that should be known about getting into college so that you will be able to make wise decisions on the following questions: 1. Is college right for you? 2. Which college is right for you? 3 What can you do now to prepare for college? Who Can Take Part In CAP? Any member of Quincy Youth Center who wants to learn more about college can take part in CAP. Where Do We Meet? 275 Hancock Street Suite 200, Quincy MA 02171 When Do We Meet? We meet every Wednesday at 3-5 p. m. from November to June. Important Dates: ◆November 9th:Meeting at 3 p. m. Come to learn more about CAP. ◆November 16th :UMass Boston tour from 2:30 p. m. to5 p. m. Come to visit UMass Boston with us. For more information, please call 617 - 249 - 2569. Ask for extension (分机号) 1090 and Sammy Wong will be glad to answer your questions. |
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（1） How often do the CAP members meet?A . Once a week. B . Twice a week. C . Once a month. D . Twice a month.
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（2） At what time does the tour to UMass Boston start?A . At 3 p. m. B . At 2:30 p. m. C . At 5 p. m. D . At 5:30 p. m.
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（3） CAP can help its members know the following EXCEPT _______.A . what college teachers are like B . what to do to get ready for college C . how to choose the right college D . if it's good for them to go to college
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（4） What's Sammy Wong's extension number?A . 617. B . 249. C . 2569. D . 1090.
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（5） To take part in CAP, one must satisfy the condition that _______.A . he has toured UMass Boston B . he is a member of Quincy Youth Center C . he performs well at high school D . he gets on with Sammy Wong
（x＞0）的图象经过等腰三角形OAB（OB=AB）的顶点B，等腰三角形OAB的面积为2个平方单位，则k的值为（ ）
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（1） 除去甲中混有的少量乙的方法是。
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（2） 将t1℃时甲、乙两种物质的饱和溶液升温至t2℃（其他条件不变），所得溶液溶质质量分数的关系是甲（填“>”、“<”或“=”）乙。
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（3） t2℃时，若将75g甲的饱和溶液稀释成20%，需加水的质量为g。
Q+2R。M、N、Q、R均是由分子构成的物质,表中列出了N、Q、R的分子示意图。下列说法错误的是( ) | 物质 | N | Q | R | |
| 分子示意图 | | | |
①燃烧过程中伴随着发光放热，所以有发光放热现象的变化一定是燃烧
②分子可以构成物质，所以物质一定是由分子构成的
③单质只含一种元素，所以含一种元素的物质一定是单质
④氧化物都含有氧元素，所以含有氧元素的化合物一定是氧化物
One of my favourite posters says, "Life is a test. It is only a test. If you face life at ease (从容地), you will know where to go and what to do." It reminds me not to take my life too seriously and then I will have a more relaxing life.
Maybe you have many problems in your daily life. However, if you regard a problem as a test, you will get a chance to grow up. Whatever problem you have, just look at it as a test. and then you will always have a chance to succeed because it is a battle(战斗) that you must win to save yourself. It is a time when you are probably on a very hard journey. The only time when you are likely (可能的) to be happy is when everything is working out just right.
Perhaps you have much pressure from your parents or a very strict teacher. Just face it. Rather than worry about your problem, just ask yourself, "Why is it a problem in my life? What can I do to solve it?"
Indeed (确实), life is a test. Just face it at ease. If you use this way to think about your problems, you will be surprised to find that you have changed yourself and have been the owner of your life.
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（1） The poster saying reminds us _______________________.A . to mind our problems in life B . not to take our life too seriously C . to try to face the problems in life D . to ignore the problems in life
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（2） _____________________ if we regard a problem as a test.A . We can get a chance to grow up or succeed B . We can never have a chance to grow up C . We can hardly have a chance to succeed D . We will feel tired
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（3） You may feel happy when _____________________.A . everything is working out just right B . you have too much pressure to face C . you are probably on a hard journey D . your problems aren't solved
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（4） What is life according to the passage?A . Life is a problem. B . Life is a test. C . Life is pressure. D . Life is a game.
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（5） What does the passage mainly tell us?A . We need to take life seriously. Don't take it easy. B . We should try to run away from the problems in life. C . We should face the problems and pressure at ease. D . We should take life seriously.
（查阅资料）硫酸铜是一种白色粉末，具有吸水性，吸水后变为蓝色。
（进行实验）
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（1） 如图A，点燃蜡烛，取一片铁纱窗罩在火焰中心，观察到外焰的铁纱窗出现红热的环，内焰及焰心处的铁纱窗无明显变化，该实验的结论为。
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（2） 如图B，取一支导管，将其中一端伸入焰心，等另一端导管口有白烟出视时，再将燃着的火柴放在导管口，观察到的现象为，证明焰心中的可燃物质是“气态”的石蜡。
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（3） 如图C，用一个大烧杯罩在一支点燃的小蜡烛上，并在烧杯内靠近顶部的位置放置适量的硫酸铜粉末和澄清石灰水，一段时间后，蜡烛熄灭，观察到硫酸铜粉末变蓝，澄清石灰水变浑浊。
①结论：石蜡燃烧后生成的产物是和。
②由该实验结论可以推断石蜡中一定含有的元素是、。
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（1） 计入空气污染指数的项目中除了可吸入颗粒物外，还包括(填序号)
①CO ②CO2 ③SO2 ④NO2
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（2） 下列关于PM2.5的说法错误的是(填序号)。
①燃放烟花爆竹会产生PM2.5； ②PM2.5是造成灰霾天气的“元凶”；
③PM2.5的颗粒大小与分子大小差不多；④PM2.5专用口罩使用了活性炭，是利用了活性炭的吸附性。
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（3） 除了对汽车尾气的检测，还有哪些措施对PM2.5的治理能起到积极作用，请举一例：。
①弘扬以改革创新为核心的时代精神
②推进以制度创新为核心的全面创新
③把提升发展质量摆在首位
④加强核心技术的自主研发
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（1） “沙里淘金”说明黄金在自然界中能够以(填“单质”或“化合物”)形式存在.
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（2） 葡萄表皮上因喷洒“波尔多液”而呈现的蓝色斑点,可以用厨房调料洗净.
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（3） 刘大爷种的小麦出现倒伏现象,你会建议他使用化肥中的肥．
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（4） 通常所说的煤气中毒是指由(填物质化学式)引起的中毒.
- 下列物质在生活中应用时,起还原作用的是(
- 单项选择 I have a , so the doctor tells me to take my t
- It is reported that many a new house_________at present in t
- Good news-two of our classmates ______ into Tsinghua Univers
- （09年西城区抽样文）为了了解在一个水库中
- 钛和钛合金被认为是 21 世纪的重要金属材料
- 2013年8月17日，中共中央政治常委、国务院总
- 下列说法中正确的有（ ） （1）描述一组
- 有三盏白炽灯，甲标有“PZ220-15”，乙标有“P
- 利用右图装置收集下列各种气体并进行相应性
- 由于经济的发展．人类对大自然造成了许多干
- 用括号中所给单词的适当形式完成下列句子 1.
- I hope my teacher will take my recent illness into _____
- 电视台在“欢乐今宵”节目中拿出两个信箱，
- 已知甲、乙、丙 、丁四种化合物，都由Na、H
- 已知双曲线的左焦点为F1,左、右顶点为A1、A2,P
- 若单项式与单项式的和仍是单项式，则=_______
- 学校冬季趣味运动会开设了“抢收抢种”项目
- 1942年5月前后，日商企图强行收买上海申新一
- 已知∠AOB=100°，∠BOC=40°，求∠AOC=
