题目内容
4．The theater goes dark．The audience quiets down．The curtain opens．Actors step onto the stage，and the audience sits and waits for the play to begin．Many people are needed to put ona play．Some of these people have made the setting，or set，that decorates the stage，and costumes（戏服）for the actors to wear．Actors have tried out for the parts．Then they have taken time to learn their lines．Even after the play is ready to be performed，the work doesn't end．Let's take a look behind the scenes．
To get ready for the play，actors put on costumes and makeup．These items will help the audience get to know the characters that the actors will play on the stage．Someone backstage may help with costume changes and repairs．
A set is like a costume for the stage．It can look like a forest or a playground or anyplace else you can imagine．Sets may be made from wood，paper，and even fabric．They are usually light so they are easy to move on and off the stage．
The lights in a play are very important．Lighting shows the time of day．It can also set the feeling of a scene．For example，brightness may make the audience feel happy and get their attention．A lighting technician controls the lighting during the play．
This is just some of what's needed to put on a play．Next time you see a performance，imagine all of the people who work hard to help the performers put on a good show．
21．The first paragraph introduces readers to the topic byD．
A．describing a scene in a play
B．showing how to produce a play
C．explaining different roles in a play
D．presenting the last-minute preparation for a play
22．According to the passage，settings，or setsA．
A．decorate the stage like costumes
B．are usually made from rare materials
C．must be slowly changed with great care
D．determine the time and atmosphere of a play
23．Who is the passage probably written for？C
A．Actors．
B．Play writers．
C．Audiences．
D．Directors．
分析 本文主要介绍了表演开始前幕后的一些准备，简单介绍了演员的衣服和妆容，服装的编制以及灯光的重要性．
解答 21-23 DAC
21．D．推理判断题．根据"The theater goes dark．The audience quiets down．The curtain opens．Actors step onto the stage，and the audience sits and waits for the play to begin．"可知第一段是通过表演的最后时刻的准备来引出话题．故选D．
22．A．细节理解题．根据"Some of these people have made the setting，or set，that decorates the stage，and costumes（戏服）for the actors to wear．"可知背景和布景像服装一样被用来装饰舞台．故选A．
23．C．推理判断题．A．Actors演员；B．Play writers剧作家；C．Audiences观众；D．Directors导演．根据第一段"The theater goes dark．The audience quiets down．The curtain opens．Actors step onto the stage，and the audience sits and waits for the play to begin．"和最后一段"Next time you see a performance，imagine all of the people who work hard to help the performers put on a good show．"可知本文主要介绍了表演开始前幕后的准备情况，所以本文是写给观众的．故选C．
点评 此题主要考查学生的细节理解和推理判断能力．做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确选择．在做推理判断题时不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
