下列物质中，含有离子键的是 A．H2 B．HC1 C．CO2 D．NaC1

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问题选择题

下列物质中，含有离子键的是

A．H₂

B．HC1

C．CO₂

D．NaC1

答案

答案：D

考查化学键的判断。一般活泼的金属和活泼的非金属容易形成离子键，非金属元素的

原子间容易形成共价键，所以D正确，ABC都是含有共价键的物质，答案选D。

句型转换

句型转换.

1. I like reading and listening to music. (变否定句)

I ________ ________ reading or listening to music.

2. Kate comes from America. (变一般疑问句)

________ Kate ________ from America?

3. He often tells interesting stories to the class. (变同义句)

The class often ________to him tell interesting stories.

4. My father has lunch at twelve o'clock. (就划线部分提问)

________ ______does your father have lunch?

5. What's your father's job? (变同义句)

________ does your father ________?

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