补全对话

A: Who is your English teacher?

B: Miss Green.

A:（1）____

B: She is tall and thin. And she has curly hair.

A:（2）____

B: Yes, of course. We all love her. She's fun. She often tells us 　　interesting stories.

A: That sounds great. （3）____

B: Oh, she's American.（4）____

A: He's a man. He's from China, but his English is good.

B: （5）____

A: He is of medium build. He has short black hair. He is friendly to us.

B: Good! I hope you can learn Chinese well!

 小明同学用焦距为10cm的凸透镜做“探究凸透镜成像规律”的实验，在实验过程中保持凸透镜的位置不变，请你根据所学知识回答下列问题．
（1）小明一次将蜡烛、凸透镜、光屏放置在光具座上，并调整凸透镜和光屏的高度，使它们的中心跟蜡烛的中心大致在____ ．
（2）过了一段时间后，小明发现烛焰在光屏上的像偏高，若要使烛焰成像在光屏中心，只调节光屏，应将光屏向____ （选填“上”“下”）调节．
（3）小明将蜡烛放在15cm的刻度线处，左右移动光屏，直到光屏上成清晰的倒立____ （选填“放大”“等大”“缩小”）的实像，____ （选填“照相机”“幻灯机”或“放大镜”）就是利用这一成像原理制成的．