题目

如图，矩形中，cm，cm，点为边上的任意一点，四边形 也是矩形，且，则          ． 答案：1cm或7cm What can you make with pieces of paper？Look at Chen Yiyan’s works!The 14﹣year﹣old has Origami（折纸） talent at Hangzhou Entel Foreign Language School．Zhejiang．【1】 But he wasn’t born with this talent．When Chen was a fourth﹣grader，he found his brother’s paper﹣folding book．【2】 Following the 50steps shown in the book，he made his first work，a paper peacock，within two hours．Since then，he has read many books about Origami and practices in his spare time．So far，his“fantasy world“has man members，such as monsters and robots．And he made his favorite work last year．【3】 Chen used to fold （折叠）paper himself until he met Chen Changnan，an eighth﹣grader at his school，who also loves Origami．They set up a paper﹣folding club last year．With support from school，they host a paper﹣folding class every Wednesday afternoon．The club soon attracted people．Now it has more tan 20 members．【4】 On February 14th．The club also held a speech for the kids in wenzhou Children’s Library．“It’s really exciting to develop my hobby and share it with others at the same time．”said Chen，“I hope more and more people get to know Origami and love this art．”A．It’s a paper dragon that involved （包含）almost 2000 steps．B．They show their works and teach students how to fold．C．He has folded a“kingdom“with his hands．D．It got him interested in Origami【5】The passage mainly tells us ．A．a paper﹣folding club B．how to fold paperC．a student with Origami talent D．how to develop hobbies．