新课程能力培养九年级英语人教版
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1. Where is X - ray technology used?
答案：It is widely used in medicine and other fields like hospitals for checking players' injured legs or arms, dentists using it to look at teeth and airport workers using it to check objects before a plane leaves.
2. When were X - rays discovered?
答案：They were discovered in 1895.
3. Whose hand was in the first X - ray photo?
答案：Röntgen's wife's hand was in the first X - ray photo.
4. Why did Röntgen name the ray “X - ray”?
答案：Because he couldn't explain exactly how it worked.
5. What do you think of Röntgen? And why?
答案：He is great and selfless. Because he gave away his Nobel Prize money to his university and never took out any patents on X - rays, making his discovery freely available to the world.
