1.选择题- (共4题)
根据短文，从A、B、C、D四个选项中选择正确答案填空。
It's December 28th. New Year's Day is 1. Ma Li is in a 2 shop. She wants to buy a blouse 3 her mother. She is happy because she 4 a blue blouse. It looks pretty. She thinks it 5 her mother's trousers well, so she asks the shopkeeper what the 6 is. “198 yuan,” says the shopkeeper. Ma Li is surprised (吃惊的), “Too 7! What's it made of?” The shopkeeper tells her the blouse is made of silk. “Good things always 8 much,” he says.
“But I have only 190 yuan. Can it be cheaper (更便宜)? I buy it for my mother. ”
“9. 198 yuan is the last price. But I will lend you 8 yuan.”
“10? We don’t know each other.”
“Because I love my mother, too,” says the shopkeeper with a smile (微笑).
- What present do you want to buy for your father?
- . They can keep his hands warm in winter.
- What present do you want to buy for your father?
- . They can keep his hands warm in winter.
①增加财政收入，刺激经济增长 ②鼓励发展小排量汽车，促进产业结构优化
③抑制汽车消费，缓解资源压力 ④引导消费者节能减排、绿色消费
2.单选题- (共3题)
| A．共价化合物和离子化合物中，一定都含有非金属元素 |
| B．某元素原子最外层只有1个电子，它跟卤素可能形成离子键也可能形成共价键 |
| C．离子化合物如果能溶于水，其水溶液一定可以导电 |
| D．共价化合物都是由分子构成的，而离子化合物中一般不存在单个分子 |
3.填空题- (共1题)
（1）只存在共价键的是__ ___，既存在离子键又存在共价键的是 。
（2）熔化时不需要破坏化学键的是_______，熔化时需要破坏共价键的是 。
4.实验题- (共1题)
（1）如果加热温度在600℃以上，再向所得固体的试样溶液中缓缓滴加稀盐酸至足量，观察到品红溶液不褪色，CuSO4溶液中出现黑色沉淀，试分析试样溶液中可能出现的现象__________ _________，解释这种现象的离子方程式是_____________ _ _；品红溶液不褪色的原因是：_____________________。
（2）通过上述实验现象推断无水亚硫酸钠受热分解的化学方程式是____________________，装置中的NaOH溶液的作用是____________________________。
（3）若加入了足量的稀盐酸后，品红溶液和CuSO4溶液中都无明显的现象发生，原因是_____________________________________。
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【1】题量占比
选择题:(4道)
单选题:(3道)
填空题:(1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：1
5星难题：0
6星难题：2
7星难题：0
8星难题：2
9星难题：0