1.推断题- (共1题)

(1)F的化学式:_________;D的化学式:________;
(2)分别写出①和③反应的化学方程式:_____________;___________;②的反应类型是_________(选填“化合反应”、“分解反应”、“置换反应”);
(3)写出在生产、生活中I的用途:_________________________;
(4)实验室中检验C的方法是_______________________.
2.简答题- (共1题)

3.选择题- (共13题)
A. show me the building, B. was rising , C. make a living, D. could hardly sleep E. took my taxi F. pay you |
Twenty years ago, I drove a taxi for a living. One time in the middle of the night, an old lady in her 80s {#blank#}1{#/blank#} . She gave me an address, and then asked, “Could you {#blank#}2{#/blank#}?”
“It's not the shortest way,” I answered quietly .
“Oh, I don't mind,” she said. “I'm in no hurry. I'm on my way to a hospice(临终医院). I {#blank#}3{#/blank#} The doctor says I don't have very long.”
I quickly reached over and shut off the meter(计价器). For the next two hours, we drove through the city. She{#blank#}4{#/blank#}where she had once worked, the neighborhood where she had lived, the place where she danced as a girl. As sun {#blank#}5{#/blank#}, we got to the hospice.
“How much should I {#blank#}6{#/blank#}?” she asked, reaching into her purse.
“Nothing ” I said.
“You have to{#blank#}7{#/blank#} ” she answered.
“Oh, there are other passengers,” I answered.
“You gave an old woman some moment of happiness”. She said: “Thank you.”
I drove into the fine morning light. Behind me, a door shut. It was the sound of closing of a life. I drove aimlessly, lost in thought. For the rest of the day, I {#blank#}8{#/blank#}. What if that woman had got an unfriendly drive, or one who was impatient to his shift? What if I had refused to take the run?
A. show me the building, B. was rising , C. make a living, D. could hardly sleep E. took my taxi F. pay you |
Twenty years ago, I drove a taxi for a living. One time in the middle of the night, an old lady in her 80s {#blank#}1{#/blank#} . She gave me an address, and then asked, “Could you {#blank#}2{#/blank#}?”
“It's not the shortest way,” I answered quietly .
“Oh, I don't mind,” she said. “I'm in no hurry. I'm on my way to a hospice(临终医院). I {#blank#}3{#/blank#} The doctor says I don't have very long.”
I quickly reached over and shut off the meter(计价器). For the next two hours, we drove through the city. She{#blank#}4{#/blank#}where she had once worked, the neighborhood where she had lived, the place where she danced as a girl. As sun {#blank#}5{#/blank#}, we got to the hospice.
“How much should I {#blank#}6{#/blank#}?” she asked, reaching into her purse.
“Nothing ” I said.
“You have to{#blank#}7{#/blank#} ” she answered.
“Oh, there are other passengers,” I answered.
“You gave an old woman some moment of happiness”. She said: “Thank you.”
I drove into the fine morning light. Behind me, a door shut. It was the sound of closing of a life. I drove aimlessly, lost in thought. For the rest of the day, I {#blank#}8{#/blank#}. What if that woman had got an unfriendly drive, or one who was impatient to his shift? What if I had refused to take the run?
根据意思写词语
①急急忙忙的样子。{#blank#}1{#/blank#}
②完全不知道的样子。{#blank#}2{#/blank#}
③眼睛定定地看的样子。{#blank#}3{#/blank#}
④在一个地方来回地走。{#blank#}4{#/blank#}
根据意思写词语
①急急忙忙的样子。{#blank#}1{#/blank#}
②完全不知道的样子。{#blank#}2{#/blank#}
③眼睛定定地看的样子。{#blank#}3{#/blank#}
④在一个地方来回地走。{#blank#}4{#/blank#}
阅读理解
The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.
American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.
In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.
Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.
阅读理解
The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.
American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.
In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.
Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.
阅读理解
The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.
American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.
In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.
Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.
4.单选题- (共29题)
A.清洗苹果 | B.把苹果捣碎 |
C.苹果发酵成醋 | D.用纱布过滤后装瓶 |
A.二氧化锰是加快过氧化氢分解的催化剂,所以催化剂是加快化学反应速率的物质 |
B.水电解产生氢气和氧气,所以水是由氢气和氧气组成的 |
C.空气中可燃物燃烧必须与氧气接触,所以把可燃物与氧气隔绝是灭火的有效方法之一 |
D.溶液中有晶体析出,其溶质的质量减小,所以溶质的质量分数一定减小 |
A.化学变化都遵循质量守恒定律,所以质量不发生改变的变化就是化学变化 |
B.单质中只含有一种元素,但是只含有一种元素的物质不一定是单质 |
C.二氧化锰可以加快过氧化氢分解速率,所以二氧化锰可作任何化学反应的催化剂 |
D.原子核是由质子和中子构成的,所以任何原子的原子核内部含有质子和中子 |
A.CaO | B.CaO2 | C.CaCO3 | D.CaCl2 |

A.①铜片上有划痕,黄铜的硬度比铜大 |
B.②试管中黑色粉末变成红色,澄清石灰水变浑浊,木炭具有还原性 |
C.③烧杯内壁上有无色液滴出现,生成物是水 |
D.④将稀盐酸倒入烧杯后,有气泡产生,天平失去平衡,质量不守恒 |
①C+O2

②2CO2+C

③CaCO3

④Fe2O3+3CO

A. ③ B. ②和③ C. ③和④ D. ①和④

A. 硒的核电荷数为79 B. 硒的相对原子质量是34
C. 相对分子质量为78.96 D. 中子数为45
A.柠檬酸属于氧化物 |
B.柠檬酸是由6个碳原子、8个氢原子和7个氧原子组成的 |
C.柠檬酸中氧元素的质量分数最大 |
D.柠檬酸中碳、氢、氧三种元素的质量比为6:8:7 |
A.“人造空气”比空气中的氮气含量高 |
B.燃着的蜡烛在“人造空气”中会熄灭 |
C.可以采用测定空气里氧气含量的方法,测定“人造空气”中氧气的含量 |
D.“人造空气”若只含有O2会更有益于人的呼吸 |

A.该实验证明空气中氧气的体积分数约占![]() |
B.实验时红磷一定要过量 |
C.实验前一定要检查装置的气密性 |
D.红磷燃烧产生大量的白雾,火焰熄灭后立刻打开弹簧夹 |

A.该实验的主要目的是验证水的组成 | B.水电解产生的氢气和氧气的质量比是2:1 |
C.试管1中的气体能使带火星的木条复燃![]() | D.电解水的化学方程式是2H2O![]() |
A.自然界中的水经过沉淀、过滤、吸附后即可得到纯水 |
B.用肥皂水鉴别硬水和软水 |
C.大量施用农药、化肥不会造成水体污染 |
D.我市水资源丰富,不需要节约用水 |

A.t1℃时,甲、乙两种饱和溶液的溶质质量一定相等 |
B.温度由t2℃降到t1℃时,物质甲的饱和溶液的溶质质量分数不变 |
C.t2℃时,物质甲的溶解度大于物质乙的溶解度 |
D.通过降低温度的方法,均可以使甲、乙两种溶液中析出晶体 |
A.析出晶体后的溶液是该温度下的饱和溶液 |
B.在溶液里进行的化学反应,通常是比较快的 |
C.同种溶质的饱和溶液的溶质质量分数一定比它的不饱和溶液的大 |
D.同一温度下,氯化钠在等质量的水中和酒精中溶解的质量不同 |
A.将氯化钠固体直接放在天平的托盘上称取5克食盐 |
B.用10mL量筒比用100毫升量筒量取95毫升水更精确 |
C.为加快固体溶液,用温度计搅拌 |
D.将配好的溶液倒入细口瓶中,塞紧瓶塞并贴上标签 |

A.该反应是化合反应 |
B.甲的相对分子质量大于乙 |
C.丙是反应物,甲和乙是生成物 |
D.t1时,丙的质量一定等于甲、乙的质量之和 |

A.t1℃时,甲的溶解度小于乙的溶解度 |
B.t1℃时,加入甲物质,可使不饱和的甲溶液变成饱和 |
C.t2℃时,甲或乙两种物质饱和溶液中溶质与溶剂的比是W:100 |
D.将甲、乙饱和溶液的温度从t3℃降到t2℃时,乙先析出晶体 |

A.将大块煤粉碎后再燃烧,其目的是延迟煤燃烧的时间 |
B.火柴头斜向下时更容易燃烧,是因为降低了火柴梗的着火点 |
C.由如图所示可知,金属镁引起的火灾不能用二氧化碳灭火 |
D.蜡烛用扇子一扇即灭,是因为扇走了蜡烛周围的空气 |
A.开发和利用太阳能、水能、风能等能源 |
B.开采出来的石油应该经过加工后再综合利用 |
C.为保护环境,严禁开采煤、石油和天然气等化石燃料 |
D.在汽油中加入适量乙醇制成汽车使用的燃料乙醇汽油 |
A.蜡烛在空气中燃烧生成二氧化碳和水 |
B.红磷在空气中燃烧产生大量白烟 |
C.硫在氧气中燃烧产生淡蓝色火焰 |
D.镁条在空气中剧烈燃烧,发出耀眼白光,生成白色的氧化镁固体 |
5.多选题- (共2题)
A.Sn+H2SO4═SnSO4+H2↑ |
B.3Sn+Al2(SO4)3═3SnSO4+2Al |
C.Fe+SnSO4═Sn+FeSO4 |
D.Sn+2AgCl═SnCl2+2Ag |
A.用闻气味的方法鉴别白醋和矿泉水 |
B.煤炉火上放一盆水,就能防止一氧化碳中毒 |
C.用观察颜色的方法鉴别氧气和二氧化碳 |
D.图书、档案失火用液态CO2灭火器灭火 |
6.填空题- (共11题)

(1)要将A中的气体通入B装置中,应选图2中的_________(填序号)“注水装置”。
(2)B处是干冷的大烧杯,甲烷燃烧后烧杯内壁有水雾出现,证明甲烷中一定含有_____元素;将B中烧杯正放向其中滴加澄清石灰水,出现浑浊,证明甲烷中一定含有_______元素。
(3)此实验能否证明甲烷分子中是否含有氧元素_________(填“能”或“不能”)。
(4)写出甲烷燃烧的化学方程式_________________________________________。

(1)浓硝酸的化学性质:_____________(写出一种即可);
(2)水中氢、氧元素的质量比:____________(最简整数比);
(3)判断X的化学式:__________,判断依据是________________;
(4)二氧化氮分子由氮原子和氧原子构成,其中氮原子的原子结构示意图如图,氮原子的最外层上的电子数为_______。

(1)甲、乙、丙三种物质分别是_____、_________、_________.(填化学式)
(2)写出甲与氧化铜在高温条件下生成丙气体的化学方程式_______________.

请根据以上信息回答问题:
(1)该金属元素原子核外电子数 = ;图一所示微粒的符号为 ;
(2)图二所示的该金属在空气中燃烧时反应的化学方程式为 。
(1)请用数字和化学符号填空:
①2个氮原子_____; ②4个二氧化碳分子______; ③钙离子_____; ④钻石的主要成分_____.
⑤+6价的硫元素________; ⑥地壳中含量最高的金属元素_____; ⑦可用于人工降雨的液氮_______;
⑧氯酸钾______.
(2)元素周期表是学习化学的重要工具,如图是表中的一格,其中A表示_______;B表示__________.

(1)空气中含量最多的气体是______.(填化学式)
(2)在金属元素与非金属元素构成的化合物中,非金属元素显_______(选填“正价”或“负价”).

(1)写出图中标有序号的仪器名称:①__________,②____________.
(2)实验过程中,先要进行的是________(填“Ⅰ”或“Ⅱ”)Ⅰ.加热Ⅱ.通一氧化碳
(3)酒精灯上加金属网罩的作用是______________________.
(4)A中反应的化学方程式是_________________;A中观察到的现象是__________________;
B中反应的化学方程式是_______________________;B中观察到的现象是_______________;
(5)该装置的不足之处是_________________.

(1)35℃时,甲、乙、丙的溶解度大小关系为________________;
(2)25℃时,将25g甲固体加入到50g水中,充分溶解并恢复到原温度后,得到溶液的质量为______g;
(3)要使35℃时接近饱和的甲溶液变成该温度下的饱和溶液,可采用的一种方法是_____________;
(4)如图,往试管中滴加适量水,试管中发生的反应属于_____反应(填“吸热”或“放热”),反应完全后,发现烧杯中的饱和溶液变浑浊.请判断该饱和溶液中的溶质一定不是甲、乙、丙三种物质中的____.


(1)t1℃时,A、B、C三种物质的溶解度由大到小的顺序是 ;
(2)t2℃时,将30gA放入100g水中,充分搅拌后,所得溶溶液的溶质质量分数是 ;
(3)t3℃时,将等质量A、B两种物质的饱和溶液降温到t2℃时,析出晶体质量较大的是 ;
(4)t3℃时,将25gC放入100g水中,充分搅拌后得到C的饱和溶液,在不改变溶剂量的前提下,将其变为不饱和溶液的方法是 .
(1)生活中硬水软化的常用方法 。
(2)食品袋内充入氮气的目的是 。
(3)稀有气体能制成多种用途的电光源的原因 。
(4)做饭时,有时燃气灶或煤炉的火焰呈现黄色或橙色,锅底出现黑色,此时应将灶具或炉具的进风口 。
(5)在书写具有保存价值的档案时,最好使用 (填序号 )
A.纯蓝墨水笔 B.碳素墨水笔 C.圆珠笔
(6)纳米级材料二氧化钛(TiO2)能有效去除因装修带来的多种有害气体.TiO2中Ti的化合价为 。
(7)硫化镉是“纹身彩贴”的主要成分,可经皮肤进入人体内,干扰人体正常的新陈代谢。已知硫化镉中镉(Cd)元素化合价为+2、硫元素的化合价为-2,其化学式是 。
(8)用活性炭除去装修产生的对人体有害的气体,利用了它的 性。
(9)油库、面粉厂都要严禁烟火的原因 。
(10)实验室用酒精作为燃料: (用化学方程式表示)。
(11)小明在生活中观察到:点燃的小木棒燃烧端朝上,往往没燃尽就熄灭,而燃烧端朝下,往往不易熄灭。从燃烧的条件来看,你认为燃烧端朝上的小木棒,没燃尽就熄灭的最主要原因是 ,若将小木棒事先涂油,燃烧端朝上也不易熄灭,请说明原因: 。
(12)许多家庭做饭用罐装的“煤气”作燃料,罐中所装的是液化石油气。
①它是石油化工的一种产品。石油属于 能源(填“可再生”或“不可再生”)。
②若厨房失火时,移走“煤气罐”,这是利用了 原理灭火(填序号)。
A.清除可燃物 B.使可燃物与氧气隔绝 C.降低可燃物的着火点
(1)酸雨是指pH小于5.6的降水.煤燃烧时排放出________、_________(写化学式)等污染性气体,这些气体或气体在空气中发生反应后的生成物溶于水,会形成酸雨;
(2)PM2.5是指大气中微粒直径小于2.5um的颗粒物.下列物质中不会形成PM2.5的是____(填序号).
A.焚烧秸秆 B.汽车尾气排放 C.太阳能发电
(3)“低碳”是一种生活理念,也是一种生活态度.下列做法中不符合“低碳”要求的是______(填序号).
A.节约纸张 B.大量使用化石燃料 C.提倡使用节约技术和节能产品
(4)“三效催化转换器”可将汽车尾气中的有毒气体转化为无污染的气体,其中某个反应的微观示意图如图.从图示获得的下列信息错误的是______.

A.该图已表示出质量守恒定律
B.反应前后共有4种分子
C.乙和丙中所含原子种类相同.
7.实验题- (共2题)

(1)仪器①的名称__________;
(2)实验室制取并收集二氧化碳气体应选择的装置是_____(填序号),检验二氧化碳是否收集满的方法是__________
(3)用装置A与C连接制取氧气,当观察到装置C中_________时才开始收集,装置A中反应的化学方程式为______________;
(4)F装置可用来测量生成的CO2气体的体积,其中在水面上放一层植物油的目的是__________,植物油上方原有的空气对实验的结果___________(填“有”或“没有”)明显影响.
(5)你认为实验室制取气体时要注意的是:
①选择适当的反应,包括反应状态和______________
②选择合适的_________,并验证所制的气体;
(6)实验室中常用锌和稀盐酸或稀硫酸反应制取氢气.C和E都可以作为氢气的收集装置,由此推知氢气的物理性质_________(写一点即可)

(1)如何检查A装置的气密性________________________________
(2)实验室用高锰酸钾制取氧气应选用的装置是_____(填字母),反应的化学方程式为_____。
(3)实验室可用氧化钙固体与浓氨水在常温下混合制取少量氨气,为了得到平稳的氨气流,应选择的发生装置是_____(填字母)
(4)收集某气体的方法,主要取决于这种气体的性质。在标况下,氨气的密度为0.771g/L,且氨气极易溶于水,所以收集氨气是应选用的装置是_______。(填字母)
(5)氯化铵是一种氮肥,将氯化铵与熟石灰粉末混合,稍加热时会生成无色、有刺激性气味、密度比空气小、易溶于水的氨气。试回答:若用上述方法制取氨气,应选用与___________(填“制二氧化碳”或“用高锰酸钾制氧气”相似的气体发生装置。氨气可用____________法收集。
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【1】题量占比
推断题:(1道)
简答题:(1道)
选择题:(13道)
单选题:(29道)
多选题:(2道)
填空题:(11道)
实验题:(2道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:31
7星难题:0
8星难题:7
9星难题:5