show的过去式和过去分词

　　show例句

　　Tests have shown high levels of pollutants in the water.

　　测试显示水中污染物质的含量很高。

　　Her decision to continue shows great strength of will.

　　她决心坚持下去，显示出了很大的意志力。

　　The team put on a good show in the competition.

　　这支队伍在比赛中有上佳表现。

　　We were shown around the school by one of the students.

　　我们由一名学生领着参观了学校。

　　I'll show you how to load the software.

　　我给你演示一下如何装入这套软件。