问题
选择题
在化学反应前后，物质所含元素化合价发生变化的反应是氧化还原反应；它与化学反应基本类型间的关系如下图所示，下列示例中错误的是
A．阴影1：C+O2
CO2
B．阴影2：2H2O
2H2↑+O2↑
C．阴影3：Mg(OH)2+2HCl==MgCl2+2H2O
D．阴影4：Fe+CuSO4==FeSO4+Cu
答案
答案：C
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在化学反应前后，物质所含元素化合价发生变化的反应是氧化还原反应；它与化学反应基本类型间的关系如下图所示，下列示例中错误的是
A．阴影1：C+O2CO2
B．阴影2：2H2O2H2↑+O2↑
C．阴影3：Mg(OH)2+2HCl==MgCl2+2H2O
D．阴影4：Fe+CuSO4==FeSO4+Cu
答案：C
| 阅读理解。 | |||
Ⅰ
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| 1. Look at advertisement I. Man: I'm looking for a room to rent. It doesn't matter how the furniture (家俱) is. I've got to study for my exams so the house must be quiet. Girl: There are some advertisements for rooms in the paper. What about this one? Man: Yes…Yes…that's right. Oh dear, no, I don't think it would do. What's wrong with the room in advertisement I? | |||
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| A. It's too small. B. The walls are the wrong colour. C. The man likes old furniture better. D. It's too noisy (吵闹的). | |||
| 2. Look at advertisement Ⅱ and Ⅲ. Man: Why don't we rent one of the Seaview Holiday Flats for our holiday, Mary? They sound just as good as the Seaview Hotel, and it would be much cheaper. Mary: There's one big difference between the holiday flats and the hotel. The hotel would do much less work! Why would Mary rather stay at the hotel? | |||
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| A. They wouldn't have to cook. B. It's not so expensive. C. She would enjoy the beautiful gardens. D. It's near the sea. |