1.流程题- (共1题)




(1)A是_________,F是_________(填化学式)。
(2)B→H反应的化学方程式是____________________________。
(3)D→G反应的化学方程式是__________________,其基本反应类型是_____________。
(4)E→F反应中可观察到有白色沉淀产生,充分反应后过滤,向滤液中滴加稀盐酸,产生气体体积与所加稀盐酸体积的关系如右图所示.由此可推知上述滤液中含有的溶质是_________。
2.科学探究题- (共1题)
实验结束后,两组同学将全部的浊液集中倒进一个废液缸中。浊液中白色沉淀物质是________和 。
化学兴趣小组对浊液进行过滤,探究滤液的成分。
(提出问题)滤液里除了NaCl外,还有什么物质?
(提出猜想)猜想①: ;猜想②:Na2SO4;
猜想③:Na2CO3;猜想④:Na2CO3、Na2SO4
(实验探究)

若现象a只有白色沉淀,则猜想 成立;若现象a只有气泡产生,则猜想 可能成立;若现象b产生白色沉淀,然后加稀硝酸沉淀部分溶解,并产生气泡,则猜想 成立,若沉淀全部不溶解,则猜想 成立。
3.单选题- (共7题)

(说明:吸收池中盛有饱和的K2CO3溶液,主要反应为:K2CO3+H2O+CO2=2KHCO3)
下列有关说法错误的是:
A.该方法可以减少碳排放 | B.可循环利用的物质A是K2CO3 |
C.分解池中的主要反应属于分解反应 | D.合成塔中的主要反应属于化合反应 |
A. ④②③① B. ③①④② C. ③②④① D. ④①③②
A.使燃烧物隔绝氧气 | B.使燃烧物的温度降至着火点以下 |
C.使燃烧物与其他可燃物隔离 | D.使燃烧物的着火点降低 |
A.尽量乘坐公交车或骑自行车出行 | B.露天焚烧废旧塑料解决“白色污染” |
C.用清洁能源代替化石燃料 | D.植树造林增加绿化 |
4.选择题- (共11题)
阅读理解
“Please take my penny,” said Maggie to old Dan, the fisherman, who sat on a bench repairing his nets.
Her brother Andrew drew her back, whispering, “Maggie, he is not a beggar (乞丐)!”
But Maggie paid no attention. “Please take it,” she said again. Old Dan smiled, and took it. “Thank you, little miss,” he said, “It is kindly meant.”
After that, Maggie went to the beach to gather shells. She never thought how fast the hours were passing until being tired. She sat down on a rock. Soon she was scared because the sea water was going up. She wanted to go home, but she found the places she had gone down easily very difficult to climb up. The stones were wet and smooth. What could poor Maggie do? She felt sad and cried.
Luckily, Dan's large dog Rover jumped down from a rock! Rover raised his loud bark. The fisherman had taken his nets to the top of the cliffs (悬崖), and was laying them out in the sun when he heard the loud barking of a dog. He felt sure that it was Rover, and Rover was in trouble, so he looked over. There he saw it all.
“Bless her! It is the little one that was so kind-spoken to me this morning!” he cried, and he hurried to his sons' rooms.
“Quick, boys, quick!” he said. “Get to the boat, and row fast to the sea. There is a poor child there just waiting to be helped.” The fishermen lost no time, and soon little Maggie and Rover were rowed safely to land! Old Dan was waiting there to lift her out to give her into her mother's arms.
“It was the penny that did it, madam,” he said to Mrs. Weston later. “I saw Rover looking at her when she put the penny. And I am thinking he had been looking after her all the day.”
Some years later, Rover came to Maggie's home with a little note, in which was written—“Will Maggie help Rover?—his master is dead.”
阅读理解
“Please take my penny,” said Maggie to old Dan, the fisherman, who sat on a bench repairing his nets.
Her brother Andrew drew her back, whispering, “Maggie, he is not a beggar (乞丐)!”
But Maggie paid no attention. “Please take it,” she said again. Old Dan smiled, and took it. “Thank you, little miss,” he said, “It is kindly meant.”
After that, Maggie went to the beach to gather shells. She never thought how fast the hours were passing until being tired. She sat down on a rock. Soon she was scared because the sea water was going up. She wanted to go home, but she found the places she had gone down easily very difficult to climb up. The stones were wet and smooth. What could poor Maggie do? She felt sad and cried.
Luckily, Dan's large dog Rover jumped down from a rock! Rover raised his loud bark. The fisherman had taken his nets to the top of the cliffs (悬崖), and was laying them out in the sun when he heard the loud barking of a dog. He felt sure that it was Rover, and Rover was in trouble, so he looked over. There he saw it all.
“Bless her! It is the little one that was so kind-spoken to me this morning!” he cried, and he hurried to his sons' rooms.
“Quick, boys, quick!” he said. “Get to the boat, and row fast to the sea. There is a poor child there just waiting to be helped.” The fishermen lost no time, and soon little Maggie and Rover were rowed safely to land! Old Dan was waiting there to lift her out to give her into her mother's arms.
“It was the penny that did it, madam,” he said to Mrs. Weston later. “I saw Rover looking at her when she put the penny. And I am thinking he had been looking after her all the day.”
Some years later, Rover came to Maggie's home with a little note, in which was written—“Will Maggie help Rover?—his master is dead.”
近年来校园安全问题越来越引起人们的关注,建设平安校园是我们每个人的责任与义务。作为一名学生,我们不仅要注意自己的人身安全,更应该珍惜自己和他人的生命。请你根据下列表格,就安全问题写一封约90词的演讲稿,并谈谈自己的想法。
现状 | 最近发生两起安全事故 | |
建 议 | 人身安全 | 刀具类危险品不允许带到学校 课间不相互追逐打架 |
心理安全 | 学习压力过大时通过听音乐等方式放松 | |
你的意见 | 校园安全还需要注意什么?请自拟至少两点。 |
注意事项:
1). 词数90左右。短文的开头和结尾部分已为你写好,不计入总词数;
2). 短文须包括所有提示内容,可适当发挥,使短文连贯、通顺;
3). 短文中不得出现真实的校名和人名。
Hello, teachers and schoolmates. It's my honour to be here and talk about how to keep safe at school.
……
That's all for my speech. Thanks a lot.
近年来校园安全问题越来越引起人们的关注,建设平安校园是我们每个人的责任与义务。作为一名学生,我们不仅要注意自己的人身安全,更应该珍惜自己和他人的生命。请你根据下列表格,就安全问题写一封约90词的演讲稿,并谈谈自己的想法。
现状 | 最近发生两起安全事故 | |
建 议 | 人身安全 | 刀具类危险品不允许带到学校 课间不相互追逐打架 |
心理安全 | 学习压力过大时通过听音乐等方式放松 | |
你的意见 | 校园安全还需要注意什么?请自拟至少两点。 |
注意事项:
1). 词数90左右。短文的开头和结尾部分已为你写好,不计入总词数;
2). 短文须包括所有提示内容,可适当发挥,使短文连贯、通顺;
3). 短文中不得出现真实的校名和人名。
Hello, teachers and schoolmates. It's my honour to be here and talk about how to keep safe at school.
……
That's all for my speech. Thanks a lot.
根据句意和汉语注释,写出单词的正确形式。
Parents sometimes have difficulty understanding the strange {#blank#}1{#/blank#} (think) in their children's mind .
根据句意和汉语注释,写出单词的正确形式。
Parents sometimes have difficulty understanding the strange {#blank#}1{#/blank#} (think) in their children's mind .
根据句意和汉语注释,写出单词的正确形式。
Parents sometimes have difficulty understanding the strange {#blank#}1{#/blank#} (think) in their children's mind .
用括号内所给动词的适当形式填空。
—You have been chosen as the general manager of our company. Congratulations!
— Thank you very much. I never thought I{#blank#}1{#/blank#} (get) the position. I will work harder.
In spring, Suzy is always fond of hearing the rain beat lightly {#blank#}1{#/blank#} (碰撞) the ndows.
In spring, Suzy is always fond of hearing the rain beat lightly {#blank#}1{#/blank#} (碰撞) the ndows.
5.多选题- (共3题)
6.填空题- (共2题)

(1)50℃时,乙物质的溶解度是 g.
(2)20℃时,甲、乙、丙三种物质溶解度由大到小的顺序为 .
(3)50℃时,将等质量的甲、乙、丙三种物质的饱和溶液同时降温至10℃,所得溶液中溶质质量分数最
小的是 .
(4)要配制110g溶质质量分数为9.1%的丙物质溶液,配制时溶液的温度需要控制的范围是 .
豆腐的主要成分:每100g含有:水89.30g,蛋白质4.70g,油脂1.30,糖类2.80g,维生素B10.06mg,维生素B20.03mg,钙0.24g,铁1.40g,其他.
(1)其中的铁、钙是指(填序号)_____.
①分子 ②原子 ③元素
(2)当人体缺钙时,可能引起的疾病是(填序号)_____.
①骨质疏松症 ②贫血症 ③夜盲症
(3)豆腐中除了蛋白质、油脂、糖类、无机盐、水之外,还包括的营养物质是_____.
(4)豆腐常用塑料袋包装,请指出使用塑料袋包装的利与弊(各答一条)_____.
7.实验题- (共1题)
-
【1】题量占比
流程题:(1道)
科学探究题:(1道)
单选题:(7道)
选择题:(11道)
多选题:(3道)
填空题:(2道)
实验题:(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:1
5星难题:0
6星难题:8
7星难题:0
8星难题:4
9星难题:2