1.简答题- (共1题)
2.推断题- (共1题)
回答下列问题：
（1）若现象I为“生成白色沉淀”，则反应①的化学方程式为 ；
②的化学方程式为 。
(2)若现象I为“无明显变化”，则A的化学式可能为 等。
3.计算题- (共1题)
②所得不饱和溶液中溶质的质量分数。
4.单选题- (共8题)
变浑浊的气体是| A．燃烧可燃性垃圾用于发电 | B．利用太阳能分解水制氢气 |
C．全力 开采化石燃料用于居民供暖 | D．农村利用植物秸秆、牲畜粪便等 |
| 选项 | 物质 | 杂质 | 除去杂质的方法 |
| A | CO2 | H2O | NaOH固体干燥 |
| B | CuO粉末 | Cu粉 | 加入足量的稀硫酸，过滤 |
| C | KCl粉末 | MnO2 | 加水溶解，过滤，洗涤，烘干 |
| D | CaCl2溶液 | HCl | 加入过量的CaCO3，过滤 |
| A．A | B．B | C．C | D．D |
5.选择题- (共17题)
画出格点△ABC（顶点均在格点上）关于直线DE对称的△A1B1C1；在DE上画出点P，使PB+PC最小；在DE上画出点Q，使QA=QC．
画出格点△ABC（顶点均在格点上）关于直线DE对称的△A1B1C1；在DE上画出点P，使PB+PC最小；在DE上画出点Q，使QA=QC．
画出格点△ABC（顶点均在格点上）关于直线DE对称的△A1B1C1；在DE上画出点P，使PB+PC最小；在DE上画出点Q，使QA=QC．
通读全文，根据对短文的理解，选择正确的答案填空。
My name is Tony. I'm1 English boy. I'm twelve years old. I'm a 2 . Jim is my good friend. He3 from the USA. We are in 4 class. He's twelve years old, 5 . I have a nice 6 . Now, look 7 my photo. Jim has a long face, small eyes, brown and short hair. And the boy in a yellow cap is me. Yellow is my favourite 8 . Jim has a 9 . Her name is Kate. She is ten years old. Kate has a round face and 10 eyes. They look different.
从方框中选择适当的句子补全对话，有两项多余。
A: Good morning.
B: {#blank#}1{#/blank#}
A: Do you have a friend here?
B: Yes, I do.
A: {#blank#}2{#/blank#}
B: Oh. She is my friend, Amy.
A: {#blank#}3{#/blank#}
B: She comes from the USA.
A: She looks like Judy.
B: {#blank#}4{#/blank#}
A: Are they in the same grade?
B: Yes. {#blank#}5{#/blank#}
A: Is Judy your friend, too?
B: No, she isn't.
A. Who is that girl? B. But they're in different classes. C. Where is she? D. They are sisters. E. Good morning. F. Thank you. G. Where does she come from? |
从方框中选择适当的句子补全对话，有两项多余。
A: Good morning.
B: {#blank#}1{#/blank#}
A: Do you have a friend here?
B: Yes, I do.
A: {#blank#}2{#/blank#}
B: Oh. She is my friend, Amy.
A: {#blank#}3{#/blank#}
B: She comes from the USA.
A: She looks like Judy.
B: {#blank#}4{#/blank#}
A: Are they in the same grade?
B: Yes. {#blank#}5{#/blank#}
A: Is Judy your friend, too?
B: No, she isn't.
A. Who is that girl? B. But they're in different classes. C. Where is she? D. They are sisters. E. Good morning. F. Thank you. G. Where does she come from? |
从方框中选择适当的句子补全对话，有两项多余。
A: Good morning.
B: {#blank#}1{#/blank#}
A: Do you have a friend here?
B: Yes, I do.
A: {#blank#}2{#/blank#}
B: Oh. She is my friend, Amy.
A: {#blank#}3{#/blank#}
B: She comes from the USA.
A: She looks like Judy.
B: {#blank#}4{#/blank#}
A: Are they in the same grade?
B: Yes. {#blank#}5{#/blank#}
A: Is Judy your friend, too?
B: No, she isn't.
A. Who is that girl? B. But they're in different classes. C. Where is she? D. They are sisters. E. Good morning. F. Thank you. G. Where does she come from? |
根据短文内容, 回答下列问题
Look! This is Li Ming. He is from Haikou. He is thirteen years old. Now he is in Haikou No. 14 Middle School. He is in Class Five, Grade Eight. His telephone number is (020)7868-9688. Li Ming and Sally are good friends. They are in the same class, but not of the same age(年龄). She is twelve. She's from America. Now Sally and her mom are in the same school. Her mom is a good teacher.
根据短文理解完成下列各题。
Nancy and Sheila are in the same class. They are friends. Nancy wants to invite Sheila to dinner on Sunday. But Sheila doesn't know the way. Now Nancy is telling her.
It's easy. You can take No. 4 bus. After you get off at Red Road, cross it and take the first turning on the left. Walk along the road for about five minutes, and then you will see a big tree. Go straight on and walk about 100 metres, you'll see a big red house. This is not my home. Go past the big house about four hundred metres, and you will see a small yellow house beside a small tree. Then you can open the door with your foot.
"With my foot?" asks Sheila. "Why?"
"Well, you won't come to my house empty-handed(空手地), will you?" answers Nancy.
6.填空题- (共5题)
（1）能支持燃烧的是 ；
（2）用来腌制食品的是 ；
（3）用来除铁锈的是 ；
（4）在农业上做氮肥的是 。
（5）食醋中的酸 。
（6）光合作用需要的是 。
（1）写出由上述元素形成的双原子单质分子化学式 。
（2）各元素的质量比为1:1的氧化物为 ，其中除氧元素外，另一种元素的化合价为 。
（3）写出由上述元素组成物质发生反应的化学方程式
①有水生成的化合反应 。
②有水生成的复分解反应 。
（1）航天员携带的应急食品采用高强度真空包装。真空包装的食品不易变质的原因是___。
（2）航天员呼吸、排汗产生的水汽被自动收集，冷凝后通过电解制得氧气，反应的化学方程式为 ，制得的氧气可用于 。
（3）航天员的尿液通过“尿液循环器”可转化成高品质的纯净水。要将尿液转化成纯净水，可能用到的净化水的方法有 。
(1)该实验正确的操作顺序为 。(填序号)
(2)同学们在称量氯化钠质量时，右盘未放纸片，则结果会导致所得溶液中溶质的质量分数 。(填“偏大”或“偏小”或“不变”)
(3)在用托盘天平称取氯化钠的过程中，发现指针偏向分度盘的右侧，同学们接下来的操作应该是 。
(4)同学们量取水的体积如图2所示，则该小组同学实际量取水的体积为 mL。(取整数).所取的水的体积 。(填“偏大”或“偏小”或“不变”)。若其他的操作都正确，则结果配制的溶液的质量分数 。(填“偏大”或“偏小”或“不变”)。
7.实验题- (共1题)
（1）分别向两支装有碳酸钠和碳酸钙粉末的试管中注入一定量的稀盐酸，均观察到的现象是 ，固体粉末全部消失，最终形成无色溶液。写出其中一个反应的化学方程式： 。
（2）实验结束后，同学们将两种反应后的废液倒入同一只洁净的烧杯中，发现烧杯中的废液变浑浊。写出产生浑浊现象的化学方程式： 。
小组同学将烧杯中的物质进行了过滤，对滤液中的溶质成分展开了探究，请你一起参与。
（提出猜想）猜想1：滤液中的溶质是氯化钠；
猜想2：滤液中的溶质是氯化钠和碳酸钠；
猜想3：滤液中的溶质是 。
（设计实验）请你选择一种猜想进行验证。
| 实验步骤 | 预计实验现象 | 预计结论 |
| 取少量溶液于试管中， | | 猜想 正确 |
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【1】题量占比
简答题:(1道)
推断题:(1道)
计算题:(1道)
单选题:(8道)
选择题:(17道)
填空题:(5道)
实验题:(1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：4
7星难题：0
8星难题：7
9星难题：2