2009年中国出现了日食奇观．小华借助小孔成像实验装置对“”形太

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问题选择题

2009年中国出现了日食奇观．小华借助小孔成像实验装置对“”形太阳进行观察，纸盒上扎有圆形小孔，则她在半透明光屏上看到像的形状是（）

答案

答案：C

这属于小孔成像原理，可以成倒立实像，选C

填空题

根据句意完成单词：

1. The picture ________ (与……相配) the story.

2. He is always in ________ (时尚).

3. It was the worst air disaster last ________ (世纪).

4. The work she has done makes her one of the great women in ________ (现代的) times.

5. It takes time to adapt to new life ________ (风格).

6. He was quite ________ (有礼貌的), but he wasn't ready to help me.

7. When a family buys a house, it is necessary to ________ (借用) money from a bank to pay for it.

8. I thought that the ________ (整个的) family could go together.

9. I like it more than ________ (其他的物或人) of the same kind.

10. She works as a ________ (模特儿).

选择题

用下图装置(X、Y是直流电源的两极)分别进行下列各组实验，则下表中所列各项对应关系均正确的一组是