| 听对话，选择正确答案。 |
| 1. How many inventions did Edison make in his life? |
|
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| A. One thousand. B. About one thousand. C. Over one thousand. |
| 2. When did Edison die? |
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| A. In 1931. B. In 1913. C. In 1930. |
| 3. Why did someone suggest (建议) turning off all the lights when Edison died? |
|
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| A. In memory (纪念) of him. B. It's not talked about. C. To save electricity. |
| 4. How long did someone suggest turning off all the lights when Edison died? |
|
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| A. For several hours. B. For several minutes. C. For a minute. |
| 5. Did people really turn off all the lights when he died? |
|
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| A. Yes, they did. B. No, they didn't. C. It's not talked about. |