(冲刺)2019年4月2019届九年级第二次模拟大联考(浙江卷)科学卷(答题卡)

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浙江省温州市2019年中考第二次模拟训练科学试题(word版含答案)

浙江省温州市2019年中考第二次模拟训练科学试题(word版含答案)

2019年中考第二次模拟训练科学考生须知:1.全卷满分为200分,考试时间120分钟。

试卷共8页,有4大题,37小题。

,否则无效。

2.答案必须做在答题纸的相应答题框内......3.可能用到的相对原子质量:H-1 C-12 N-14 O-16 Na-23 Mg-24 Zn-65 S-324.本卷g取10牛/千克。

卷I一、选择题(本题有15小题,每题4分,共60分。

请选出各题中一个符合题意的正确选项,不选、多选、错选,均不给分。

)1.下图各种自然现象,属于化学变化的是(▲ )A.冰川消融 B.光合作用 C.降水 D.雾凇形成2.生活中蕴涵了丰富的科学知识。

下列说法中不正确的是(▲ )A.磁暴--太阳活动 B.昼夜交替现象--地球的自转C.地壳变动--板块的碰撞和张裂 D.一天中树影的长短变化--地球的公转3.如图所示的光现象中,可用光的反射原理解释的是(▲)4.正确规范的操作是实验成功的关键。

下列实验操作,符合规范的是(▲ )A.滴加液体 B.稀释浓硫酸 C.过滤液体 D.盖上盖玻片5.右图所示是是植物体几种重要的生理过程,下列说法不正确的是(▲ )A.1表示水分和无机盐的运输 B.2表示有机物的运输C.3表示蒸腾作用 D.4表示光合作用6.图为某原子结构模型,其中①②③是构成该原子的三种不同粒子,下列说法正确的是(▲ )A.决定该元素种类的粒子是②B.原子中②与③的数目一定相同C.该图为碳原子结构模型D.原子的质量集中在②和③上7.今年入春以来,病毒性流感“来势汹汹”。

下列说法正确的是( ▲ ) A .病毒性流感属于呼吸道传染病 B .流感病毒是本次流感的传染源C .流感病毒没有成形的细胞核属原核生物D .给患流感的同学吃感冒药是保护易感人群8.图是在地球上观察到的月相图,则我们观察图甲的月相后,大约需要几天才能观察到图乙的月相( ▲ )A .7-8天B .15-16天C .23-24天D .29-30天9.气体的收集和处理往往需要考虑气体的性质,某同学用图所示装置成功干燥并收集了某纯净气体,则该气体可能是 ( ▲ )A.CO 2B.O 2C.H 2D.SO 2 10.如图为某品牌平衡车。

2019年4月2019届九年级第二次模拟大联考(浙江卷)英语卷(考试版)

2019年4月2019届九年级第二次模拟大联考(浙江卷)英语卷(考试版)

2019届九年级第二次模拟大联考【浙江卷】英 语(考试时间:100分钟 试卷满分:100分)第一部分 阅读理解(共两节,满分 40 分)第一节(共 15 小题,每小题 2 分,满分 30 分)阅读下列短文,从每题所给的四个选项(A 、B 、C 和 D)中选出最佳选项。

AThree Little Kittens The three little kittensThey lost their mittens and they began to cry Our mittens we have lost.""What? Lost your mittens? You naughty kittens!Then you shall have no pie!" "Meow meow~""Now you shall have no pie!"The three little kittensThey found their mittens and they began to cry "Oh mother dear see here see here Our mittens we have found." "Put on your mittens you silly kittens. And you shall have some pie!""Meow meow oh, let us have some pie!" The three little, kittens put on their mittens And soon ate up the pie"Oh mother dear we greatly fear. Our mittens we have soiled.""Soiled your mittens? You naughty kittens! " Then they began to sigh. Meow MeowThen they began to sigh The three little kittensThey washed their mittens and __________ them out to dry "Oh mother dear do you not hear Our mittens we have washed. ""Washed your mittens? Then you are good kittens.Let’s all have some pie!" Meow MeowLet’s all have some pie!"1. What happened to the kittens " mittens at first?A. They were broken.B. They were lost.C. They were taken away.D. They were hidden.2. The best word for the blank is __________.A. hungB. hangedC. foundD. lost3. What is the song mainly about?A. Dangerous war.B. Interesting games.C. Delicious pie.D. Good manners.B英语试题第3页(共8页)英语试题第4页(共8页)4. If you want to see some real satellites, you can visit __________.A. the Space Science CentreB. Our EarthC. the Eden ProjectD. World Life5. If you would like to take a time machine, you should see Box __________.A. OneB. TwoC. ThreeD. Four6. What can people know in Box3?A. A little rocket science.B. The unknown future of our planet.C. The secrets of life itself.D. The relationships between plants and people.7. The writer wrote the passage to__________.A. encourage us to learn more about futureB. introduce some attractionsC. explain some interesting factsD. show us some famous museumsCOne day in summer, little Jack was playing on the beach with his father. Suddenly, he saw a little tortoise moving slowly on the sand He started to look at it carefully and began to touch it with his hand. To his surprise, the tortoise stopped moving. It pulled in its head and legs, and closed its shell tightly. He touched it again but the tortoise didn’t move at all Jack became angry. He used a stick and tried to force(强迫)it to open.When his father saw this, he stopped him and said,"No, son, you mustn’t do that! You will kill the tortoise. You won’t get it open with a stick."Jack was curious and asked, "Why?""Just wait and see,"his father replied. Then he picked up the tortoise and put it in a bag.After they came back home, the father took the tortoise out of the bag. He put it near the fireplace(壁炉). After a few minutes, the tortoise began to move a little. Then the tortoise stretched out(伸出)its head and legs. At last, the tortoise began to crawl across the room. How excited Jack was when he saw this."Son, now you see,"said his father, "sometimes, you can’t force someone to do things he doesn’t like. But if you get him warm first, he will do what you want him to do. "8. One day Tack and his father were playing __________.A. on the beachB. in the zooC. on the hillD. in the garden9. Tack used a stick to __________ the tortoise.A. saveB. feedC. openD. close10. The father picked up the tortoise and __________.A. killed itB. put it in a bagC. cooked itD. threw it into the sea11. The story tells us that __________.A. people will do things we want them to doB. people won’t do things we want them to doC. we can force people to do things they don’t likeD. we can’t force people to do things they don’t likeD①The Dream It is everyone’s dream to work at home or not work at all. You can plan your own hours and workwhen you want to. There is no more rush hour and no hours that people waste when they get to and from a job every day.②The Fact The fact is that this dream can be attained. You can stay at home, work when you want to and makemoney when you need to. There are plenty of opportunities for you make money at home, just by using your computer and the Internet.③Start Today! Educate yourself, look closely in to all the opportunities and decide on what works best for you. Itwill not happen during one night, but you can make the decision to day and start to make it happen today.④How Could You Do It? Do you have a blog(博客)or a personal website like millions of other people? Areyou using it to make money? Most of these blog and website owners are not. But you can do that!⑤When you have your computer and the Internet working for you, your businesses will be working for you 24hours a day, seven day a week. You will make money while you sleep, travel or do whatever you want to do all day long.⑥Get Going! There are many ways you can make money with your computer. And you can begin yourStay-at-home businesses with just a little money. What are you waiting for?12. In which part of a newspaper would you most probably read this passage?A. Sports.B. News.C. Culture.D. Business.13. What does the underlined word"attained"in Point②mean?A. Broken.B. Realized.C. Lost.D. Destroyed.14. What’s the best title for Point⑤?A. Sleep24 Hours a DayB. Make Money Every MomentC. Play All Day LongD. Travel Around the World15. Which of the following is NOT TRUE according to the passage?A. People need a lot of money to start a stay-at-home business.B. People can even use their blogs to make money.C. People can plan their own time when they work at home.D. People can make the best decision and start to make it happen today.第二节(共5 小题,每小题2 分,满分10 分)下面文章中有五处(第16—20 题)需要添加小标题。

(冲刺)2019年4月2019届九年级第二次模拟大联考(浙江卷)英语卷(答题卡)

(冲刺)2019年4月2019届九年级第二次模拟大联考(浙江卷)英语卷(答题卡)

请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!2019届九年级第二次模拟大联考【浙江卷】英语·答题卡姓名:______________________________________ 准考证号选择题(请用2B 铅笔填涂)选择题非选择题(请在各试题的答题区内作答)第二部分 语言知识运用(共两节,满分45分) 第二节 (共10小题;每小题1.5分,满分15分)注意事项1.答题前,考生先将自己的姓名、准考证号码填写清楚。

2.请将准考证条码粘贴在右侧的[条码粘贴处]的方框内。

3.选择题必须使用2B 铅笔填涂;非选择题必须用0.5毫米黑色字迹的签字笔填写,字体工整。

4.请按题号顺序在各题的答题区内作答,超出范围的答案无效,在草纸、试卷上作答无效。

5.保持卡面清洁,不要折叠、不要弄破、弄皱,不准使用涂改液、刮纸刀。

6.填涂样例 正确 [■] 错误 [--][√] [×]缺考标记考生禁止填涂缺考标记!只能由监考老师负责用黑色字迹的签字笔填涂。

条 码 粘 贴 处1.[ A ] [ B ] [ C ] [ D ]2.[ A ] [ B ] [ C ] [ D ]3.[ A ] [ B ] [ C ] [ D ]4.[ A ] [ B ] [ C ] [ D ]5.[ A ] [ B ] [ C ] [ D ]6.[ A ] [ B ] [ C ] [ D ]7.[ A ] [ B ] [ C ] [ D ]8.[ A ] [ B ] [ C ] [ D ]9.[ A ] [ B ] [ C ] [ D ] 10.[ A ] [ B ] [ C ] [ D ]11.[ A ] [ B ] [ C ] [ D ] 12.[ A ] [ B ] [ C ] [ D ] 13.[ A ] [ B ] [ C ] [ D ] 14.[ A ] [ B ] [ C ] [ D ] 15.[ A ] [ B ] [ C ] [ D ]16.[ A ] [ B ] [ C ] [ D ] [ E ] [ F ] 17.[ A ] [ B ] [ C ] [ D ] [ E ] [ F ] 18.[ A ] [ B ] [ C ] [ D ] [ E ] [ F ] 19.[ A ] [ B ] [ C ] [ D ] [ E ] [ F ] 20.[ A ] [ B ] [ C ] [ D ] [ E ] [ F ]21.[ A ] [ B ] [ C ] [ D ] 22.[ A ] [ B ] [ C ] [ D ] 23.[ A ] [ B ] [ C ] [ D ] 24.[ A ] [ B ] [ C ] [ D ] 25.[ A ] [ B ] [ C ] [ D ]26.[ A ] [ B ] [ C ] [ D ] 27.[ A ] [ B ] [ C ] [ D ] 28.[ A ] [ B ] [ C ] [ D ] 29.[ A ] [ B ] [ C ] [ D ] 30.[ A ] [ B ] [ C ] [ D ]31.[ A ] [ B ] [ C ] [ D ] 32.[ A ] [ B ] [ C ] [ D ] 33.[ A ] [ B ] [ C ] [ D ] 34.[ A ] [ B ] [ C ] [ D ] 35.[ A ] [ B ] [ C ] [ D ]第二部分 英语知识运用(共两节,满分 25 分)第二节:(共 10 小题,每小题 1 分,满分 10 分)36.____________ 37. ____________ 38. ____________ 39. ____________ 40. ____________41.____________ 42. ____________ 43. ____________ 44. ____________ 45. ____________请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!第三部分写作(共两节,满分35 分)第一节:单词拼写(共10 小题,每小题1 分,满分10 分)46.____________47. ____________48. ____________ 49. ____________50. ____________51. ____________ 52. ____________53. ____________54. ____________55. ____________第二节: 书面表达(共 1 小题,满分25 分)________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!。

(冲刺)2019年4月2019届九年级第二次模拟大联考(浙江卷)道德与法治·历史与社会卷(答题卡)

(冲刺)2019年4月2019届九年级第二次模拟大联考(浙江卷)道德与法治·历史与社会卷(答题卡)

1 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 2019届九年级第二次模拟大联考【浙江卷】道德与法治·历史与社会·答题卡请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________32.(8分) ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 准考证号: 姓 名:_________________________________________2 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 33.(10分)___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 34.(8分)_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效! 35.(12分)________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________。

2019年4月2019届九年级第二次模拟大联考(浙江卷)科学卷(考试版)

2019年4月2019届九年级第二次模拟大联考(浙江卷)科学卷(考试版)

绝密★启用前|试题命制中心2021届九年级第二次模拟大联考【浙江卷】科学〔考试时间:120分钟试卷总分值:160分〕考前须知:1.本试卷共10页,四大题,37小题。

2.答复第一大题时,选出每题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。

如需改动,用橡皮擦干净后,再选涂其他答案标号。

写在本试卷上无效。

3.答复第二、三、四大题时,请用蓝、黑色水笔或圆珠笔在答题卡上作答,写在本试卷上无效。

4.考试结束后,将本试卷和答题卡一并交回。

5.答卷前请将密封线内的工程填写清楚。

相对原子质量:H:1 C:12 O:16 Na:23 S:32 Fe:56 Cu:64 Zn:65 Ba:137一、选择题〔本大题共20小题,共60分,每题只有一个选项符合题意〕1.如图是镉元素在元素周期表中的信息和镉原子结构示意图。

以下说法错误的选项是......A.镉是一种对人体有害的金属元素B.镉的原子序数和原子核内中子数均为48D.化学反响中,镉原子易失电子2.钛和钛合金是重要金属材料。

工业上用钛酸亚铁〔FeTiO3〕冶炼钛〔Ti〕的过程是:①2FeTiO3+6C+7Cl 22TiCl4+2FeCl3+6CO②在氩气环境中:2Mg+TiCl 4Ti+2MgCl2以下判断不正确的选项是A.反响①中生成的气体对环境有污染B.MgCl2属于盐类物质C.反响①、②中钛元素的化合价都改变D.反响②属于置换反响3.以下有关生物体生命活动的说法中,不正确的一项为哪一项A.放置在窗台上的盆栽植物表现出明显的向光生长现象,这主要是植物背光一侧的生长素比向光一侧的多B.植物体蒸腾散失水分的多少主要由保卫细胞控制C.植物吸收的水分大局部用于光合作用D.人体在炎热环境中,血管舒张,此时人体产热量等于散热量4.依据图①﹣③,以下表达正确的选项是A.图示生物①是动物,②③是植物B.图示生物①②③都具有细胞结构和遗传物质C.图示生物②是由上皮组织、分生组织、输导组织和营养组织等组成D.图示生物①②的结构层次为:细胞→组织→器官→系统→生物5.长江三峡雄奇险秀,滔滔江水奔流到海。

浙江省宁波市鄞州区2019中考二模科学考试试题

浙江省宁波市鄞州区2019中考二模科学考试试题

2019年宁波市初中毕业生学业考试模拟试卷(鄞州区二模)科学试题卷Ⅰ一、选择题(本大题共15小题,第1~10 小题,每小题4分,第11~15小题,每小题3分,共55分。

请选出每小题中一个符合题意的选项,不选、多选、错选均不给分)1.关于物质结构和性质的下列说法中,正确的是(A)A.金刚石和石墨是不同的物质,它们之间的转变一定属于化学变化B.氢气是一种清洁能源,目前没有大规模做燃料的主要原因是容易发生爆炸C.二氧化碳与一氧化碳的不同之处是二氧化碳比一氧化碳多一个原子D.有2 个微粒,若它们的质子数相同,则它们一定是同种原子[命题考向:考查物质的结构和性质。

解析:氢气没有大规模做燃料的主要原因是没有找到比较理想的制氢方法。

二氧化碳和一氧化碳的不同之处是一个二氧化碳分子比一个一氧化碳分子多一个氧原子。

两个质子数相同的微粒不一定是同种原子,如水分子和氖原子。

]2.下列与人体健康有关的叙述,正确的是(D)A.有些人因为职业关系患有洁癖,这是生理不健康的表现B.缺少碘元素会使儿童发育停滞,严重的会导致侏儒症C.抽血化验时,针头刺入的是动脉D.被毒蛇咬了,注射毒蛇血清解毒,这属于特异性免疫,注射的血清是抗体[命题考向:考查人体健康。

解析:患有洁癖是心理不健康的表现。

人体缺少碘元素会患甲状腺肿大,导致儿童发育停滞和侏儒症的原因是生长激素分泌不足。

抽血化验时,针头刺入的是静脉。

]3.甲、乙、丙、丁四幅图分别表示有关的生物学过程,下列对相应曲线的理解中,不正确的是(B)第3题图A.图甲中,该酶在B点所对应的pH时活性最强B.图乙中,害虫种群中抗药性害虫所占的百分比A比B点大C.图丙中,若A点为茎向光侧的浓度,则B点可能为茎背光侧的浓度D.图丁中,香蕉储藏室的氧气浓度调整到对应的B点时效果要比A点好[命题考向:考查影响酶活性的因素、遗传和进化、植物的生长和发育。

解析:图乙中AB段随着农药使用次数的增加,不抗药的个体逐渐死亡,所以害虫种群中抗药性害虫所占的百分比B点比A点大。

2019年浙江中考科学模拟试卷仿真试卷(含答案)

2019年浙江中考科学模拟试卷仿真试卷(含答案)

浙江中考科学押题卷(含答案)C-12 N-14 O-16 Na-23 S-32 Cl-35.5 K-39 Ca-40 Fe-56 Cu-64 Zn-65 I-1274.本卷计算中g 取10牛/千克。

一、选择题(本题有15小题,每小题4分,共60分。

请选出各题中一个符合题意的选项,不选、多选、错选均不给分)1.开化素有中国“亚马逊雨林”之称,自然环境优越,是绿茶生长的好地方,开化龙顶以其“干茶色绿,汤水青绿,叶底鲜绿”为特征,成为浙江名茶中的一枝新秀,闻名全国。

茶叶中的咖啡因能使中枢神经系统兴奋,因此能够增加警觉度,使人警醒,有快速而清晰的思维,增加注意力和保持较好的身体状态。

咖啡因的化学式为C 8H 10N 4O 2,则关于咖啡因的说法中错误的是A .茶叶树的根向地生长是植物对地球引力刺激作出的反应B .茶叶树吸收的水分主要参与枝叶的生长和花果的发育C .茶叶树相邻的叶总是不重叠,增大光照面积是对光合作用的适应D .咖啡因中碳元素的质量分数约为49.5%2.下列认识或做法错误的是( )A .“低碳经济”的含义是节约能源,减少二氧化碳的排放,控制“温室效应”B .“纳米技术”可以实现直接用原子制造分子,使物质资源的利用达到最高水平C .“白色污染”一般是指合成塑料、合成橡胶等分解者难以分解的垃圾D .“绿色食品”是不含任何化学物质的食品3.实验离不开测量工具。

下列关于科学常用测量工具的刻度说法中正确..的是( ) A .电流表的零刻度偏左边,刻度均匀 B .量筒的零刻度在下端,刻度均匀C .体温计的零刻度在下端,刻度均匀D .密度计的零刻度在下端,刻度不均匀4.关于生活中常见的和“影”字有关的自然现象,下列说法中正确的是( )A .太阳光下的“树影”是由于光的直线传播形成的B .岸边的人在水中所成的“倒影”是由于光的折射形成的C .“摄影”用的照相机是根据凹透镜成像的原理制成的D .放电影时,屏幕上的“影像”能被所有观众看到,是光在屏幕上发生了镜面反射5.下列化学符号中数字“2”表示的意义正确的是( )A .Mg 2+:一个镁离子带2个单位正电荷B .CO 2:二氧化碳气体中含有2个氧原子C .2H :2个氢元素D .Ca +2O :氧化钙的化合价为+2价6.我国科学家屠呦呦因创制新型抗疟药——青蒿素,荣获2015年诺贝尔医学奖。

浙江省杭州市拱墅区2019届九年级中考二模科学考试试题

浙江省杭州市拱墅区2019届九年级中考二模科学考试试题

浙江省杭州市拱墅区2019届九年级中考二模科学考试试题2019年杭州市初中毕业生学业考试模拟试卷(拱墅区二模)科学一、选择题(每小题3分,共60分,每小题只有一个选项符合题意)1.2019年4月,《自然》杂志发文宣布,科学家首次在太空中检测到氦合氢离++被认为是宇宙中首个化学反应的产物,是宇宙演化的最重要标HeH)。

子(HeH+(B)记之一。

则1个HeHA.只有1个原子核B.共有3个质子C.共有4个电子D.相对质量为3中有2个原子核、3个质+HeH解析:一个[命题考向:考查构成物质的微粒。

子、2个电子,相对质量为5。

]2.如图是以“铁氧化物”为催化剂,利用太阳能将CO资源化利用的方法之2一,在此转化过程中包含化学反应①和②,则下列说法正确的是(C)第2题图A.①中FeO体现出氧化性,做氧化剂)(1y-B.②中的能量转化为:化学能转化为太阳能铁氧化物C.此转化过程总的化学方程式为:CO========= C+O 22太阳能D.做催化剂的“铁氧化物”是FeO 43[命题考向:考查物质的相互转化、氧化性和氧化剂、能量转化、催化剂。

解反应生成C和Fe,CO里的氧被FeO夺和FeCOOO 反应析:①中,--)2y23(1y)(14取,FeO体现出还原性,做还原剂。

②中的能量转化为太阳能转化为化学-)y(1能。

做催化剂的“铁氧化物”是FeO。

] -)(1y3.下列有关图示生物的叙述,正确的是(C)1 / 27浙江省杭州市拱墅区2019届九年级中考二模科学考试试题第3题图A.图示生物①体内有脊椎骨B.图示生物②有上皮组织等多种组织C.图示生物①②③都具有细胞结构和DNAD.图示生物①②③都是由受精卵发育而来的[命题考向:考查生物体的结构层次、生物的分类、生物的遗传和生殖。

解析:图示生物①蝗虫属于昆虫,是无脊椎生物。

图示生物②是植物,由保护组织、分生组织、输导组织和营养组织等组成,而上皮组织是动物体所具有的。

图示生物①②的生长发育是从一个受精卵开始的,图示生物③用孢子繁殖。

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18 [A] [B] [C] [D]
4 [A] [B] [C] [D]
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请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效!
35.(8 分)
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2019 届九年级第二次模拟大联考【浙江卷】
科学·答题卡
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一、选择题(请用 2B 铅笔填涂)(每小题 3 分,共 60 分)
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