1.科学探究题- (共1题)

(1)通过以上实验,可知产物中有 气体。
(2)取出反应后的固体,观察呈红色。
(查阅资料)
①C也能将CuO还原为红色固体Cu2O(氧化亚铜)
②Cu2O + H2SO4(稀)= Cu + CuSO4 + H2O
(猜想)(a)红色固体只是Cu;(b)_______;(c)红色固体是Cu和Cu2O的混合物
(实验)请你设计一个实验证明猜想(a):
实验步骤 | 实验现象 | 实验结论 |
| | |
2.推断题- (共1题)

(1)写出化学式:甲是 ,G是 ;
(2)写出物质乙与物质C化合成H的化学方程式: ,该反应是 (填“放热”或“吸热”)反应。
(3)足量的J溶解于稀盐酸中,溶液呈黄色,写出该反应的化学方程式: 。
3.计算题- (共1题)
| 反应前 | 反应后 |
烧杯及其中物质的质量 | 97.0克 | 96.8克 |
请你完成有关计算(结果保留0.1%):
(1) 生铁样品的质量分数是多少?
(2) 反应后所得溶液中溶质的质量分数是多少?
4.单选题- (共5题)
A.16 | B.27 | C.44 | D.56 |
选项 | 物质(括号内为杂质) | 去除杂质的方法 |
A | NaCl(Na2CO3) | 加入适量的Ca(OH)2溶液、过滤 |
B | CaO(CaCO3) | 加入水、过滤 |
C | Cu(Fe) | 加入过量CuSO4溶液、过滤 |
D | HNO3(H2SO4) | 加入适量BaCl2溶液、过滤 |
A. A B. B C. C D. D

A. C不可能是熟石灰的溶解度曲线
B. a的溶解度一定小于b的溶解度
C. 40℃时,a、b两种物质的溶液中溶质的质量分数相同
D. 三种物质的饱和溶液分别从40℃降温到20℃,a、b析出的晶体质量相等
A. 向某固体中滴加稀盐酸,有气泡产生,该固体一定是碳酸盐
B. 在无色溶液中滴入酚酞试液,溶液变红色,该溶液一定是碱溶液
C. 用小木棍蘸少量浓硫酸,小木棍变黑说明浓硫酸有吸水性
D. 燃着的蜡烛用烧杯罩住,火焰熄灭,说明燃烧一般需要氧气
5.选择题- (共12题)
请先阅读下面短文,掌握其大意,然后根据短文内容从下面方框内的七个选项中,选择五个还原到文中,使短文意思通顺、结构完整,并在答题卡上将其序号涂黑。
Humans’ Greatest Achievements
The Earth is 4.5 billion years old, but the human race has lived on it for just 200,000 years. In that short time, we have achieved some amazing things.
{#blank#}1{#/blank#} The list is almost endless. The invention of the airplane has changed our lives. The discovery of antibiotics (抗生素) has saved the lives of millions of people. Can you imagine living without electricity? What about the printing press (印刷术)? Without the printing press, you wouldn’t be reading this. In the last 50 years, there have been great achievements in communication, such as radio, TV, computers, the Internet, and smartphones (智能手机). {#blank#}2{#/blank#}
What about the arts? The arts have brought pleasure to many people, but are the Beatles and Bach more important than antibiotics? {#blank#}3{#/blank#}
Finally, we must not forget humans' early achievements. {#blank#}4{#/blank#} We can't imagine modern life without cooked food and cars.
What are humans' greatest achievements? To answer the question, we need to decide what we mean by “great”. {#blank#}5{#/blank#} Or is it just something that makes us say “Wow,” like the Great Wall? What do you think?
A. Do you think it is difficult to have great achievements? B. Is it something that makes us rich or happy or save lives? C. We enjoy these things every day because they are free to use. D. They used fire for cooking and heating and invented the wheel. E. Many of humans' great achievements are in science and technology. F. And is Mickey Mouse as important an achievement as going to space? G. We could probably live without them, but life wouldn’t be as interesting. |
请阅读下面短文,根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项。
Carlton Joseph is a fashion designer(服装设计师), but not just any fashion designer. He appears on television, he writes books, and he owns his fashion house.
Born in 1980, Carlton started designing clothes when he was eleven. His father owned a clothes store, and Carlton used to work there at the weekend. Then he did a design course at college.
When he was 21, someone suggested doing a TV program. He made his first show “Carlton's Clothes” in 2004, and he wrote his first book in the same year. Since then he has written four more. Carlton got married to TV producer Susan Mills in 2005.
Three months ago, Carlton started his new company. He called it “Design Carlton”.
At work Carlton always wears black trousers and a blue coat, but at home, or when he goes out, he wears clothes with bright colors (red, blue and yellow). He is especially crazy about new glasses, he buys a new pair every few weeks. “I like to look different every day,” he says.
Carlton started wearing glasses when he was twelve. He dyed(给……染色) his hair red when he was 18. It is still red, and this year, for the first time, he has grown a beard. “My wife likes it, that's why” is his explanation. But his beard is black.
请阅读下面短文,根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项。
Carlton Joseph is a fashion designer(服装设计师), but not just any fashion designer. He appears on television, he writes books, and he owns his fashion house.
Born in 1980, Carlton started designing clothes when he was eleven. His father owned a clothes store, and Carlton used to work there at the weekend. Then he did a design course at college.
When he was 21, someone suggested doing a TV program. He made his first show “Carlton's Clothes” in 2004, and he wrote his first book in the same year. Since then he has written four more. Carlton got married to TV producer Susan Mills in 2005.
Three months ago, Carlton started his new company. He called it “Design Carlton”.
At work Carlton always wears black trousers and a blue coat, but at home, or when he goes out, he wears clothes with bright colors (red, blue and yellow). He is especially crazy about new glasses, he buys a new pair every few weeks. “I like to look different every day,” he says.
Carlton started wearing glasses when he was twelve. He dyed(给……染色) his hair red when he was 18. It is still red, and this year, for the first time, he has grown a beard. “My wife likes it, that's why” is his explanation. But his beard is black.
请先阅读下面短文,掌握其大意,然后用方框中所给的词的适当形式填空,并写在答题卡的相应位置。每个词限用一次。
real noisy clean after work be area traffic also live |
Many people have cars in the city. But pollution is a problem because of the{#blank#}1{#/blank#}. Nowadays some downtown (市中心) areas around the world don't have cars. These car-free zones (无车区) are{#blank#}2{#/blank#} for people, bicycles, and public transportation only.
Eight million people{#blank#}3{#/blank#} in the center of London and another two million people go to work there every day. The downtown area is very{#blank#}4{#/blank#} with hundreds of cars, buses, and taxis, but there are {#blank#}5{#/blank#}a lot of beautiful parks with free music concert. At lunchtime, many people go there for a rest {#blank#}6{#/blank#} they get off work.
Parts of Tokyo are always crowded with hundreds of people - but no cars! These modern car-free zones are{#blank#}7{#/blank#} popular and people like shopping there.
In the past, Bogota was polluted because there{#blank#}8{#/blank#}lots of cars and traffic. Now the downtown area is car-free zone and the air is{#blank#}9{#/blank#}! Many people don't have a car and half a million people take the bus{#blank#}10{#/blank#}. There are lots of stores. It's not expensive.
6.填空题- (共5题)

请回答下列问题:
(1)铝元素的原子序数为 ;属于铝离子的结构示意图是 (填“丙或丁”);
(2)图A、B分别表示氧元素和硫元素的原子结构示意图,从图可知,这两种元素的化学性质 (填相似或不同);
(3)氧元素与铝元素最本质的区别是 ;
A.中子数不同 B.质子数不同
C.相对原子质量不同 D.电子数不同

5SO2中“5”的含义是 。
(1)铁丝在氧气中燃烧
(2)实验室用氯酸钾和二氧化锰共热制取氧气 ()
(3)铜丝插入硝酸银溶液 ()
(4)氢氧化钠放置在空气中变质的原因
(1)常用做干燥剂的氧化物 ;(2)可用做酒精灯燃料的是 ;
(3)常用来改良酸性土壤的碱 ;(4)说“碱”不是碱,但其水溶液呈碱性的一种盐 ;(5)一种有毒的气体 ;
在配制过程导致溶液中氯化钠质量分数小于10%的可能原因是 (填序号)
①用量筒量取水时仰视读数
②量取液体时量筒预先用少量蒸馏水润洗
③盛装溶液的试剂瓶用蒸馏水润洗
④氯化钠晶体不纯
7.实验题- (共2题)
步骤 | 实验操作 | 实验现象 | 推断(或结论) |
(1) | 取废液放入试管观察 | | 废液中肯定不含FeCl3 |
(2) | 用广泛pH试纸测定废液的pH | 测定结果:pH=3 | |
(3) | 向废液中滴入足量 溶液 | 有白色沉淀出现 | 有硫酸或硫酸钠 |
(4) | 向上述过滤所得的滤液中滴加AgNO3溶液 | 无明显反应现象 | |
废液成分的可能组合(写出溶质的化学式) | ①_____________________ ②H2SO4、HNO3 ③_____________________ |
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【1】题量占比
科学探究题:(1道)
推断题:(1道)
计算题:(1道)
单选题:(5道)
选择题:(12道)
填空题:(5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:4
5星难题:0
6星难题:7
7星难题:0
8星难题:1
9星难题:1