1. 听独白，回答问题。

Did you ever make a camera by yourself?<br />Students in class 9, grade 8 of her fay, number 45 middle school did.<br />They made cameras with paper and glass.<br />It was a physics class, and they are interested in it.<br />The students have been learning about light and pictures these days.<br />The self-made cameras can't really take photos.<br />But with them, students can see a building that is about 200 meters away clearly.<br />Students made cameras in different sizes.<br />One is just half the size of a computer mouse.<br />Another one is as big as a telephone.<br />The camera with the clearest picture got a full mark.<br />Did you ever make a camera by yourself?<br />Students in class 9, grade 8 of her fay, number 45 middle school did.<br />They made cameras with paper and glass.<br />It was a physics class, and they are interested in it.<br />The students have been learning about light and pictures these days.<br />The self-made cameras can't really take photos.<br />But with them, students can see a building that is about 200 meters away clearly.<br />Students made cameras in different sizes.<br />One is just half the size of a computer mouse.<br />Another one is as big as a telephone.<br />The camera with the clearest picture got a full mark.

1. （1） Did the students in Class 9,Grade 8 of Hefei No.45 Middle School make cameras by themselves?

   A . Yes, they did. B . No, they didn't. C . I don't know.
3. （2） Which subject are students interested in?

   A . Chemistry. B . Math. C . Physics.
5. （3） What were the "cameras" made of?

   A . Paper and glass. B . Silver and glass. C . Glass and clay.
7. （4） What kind of "camera" can get a full mark?

   A . The biggest one. B . The smallest one. C . The one with the clearest picture.
9. （5） What can we learn from the passage?

   A . The self-made cameras can really take photos. B . Students made cameras in different sizes. C . Students can see a building that is 2,000 meters away clearly.