【正文】 his attention to the library.50. David discovered that _________ after he was locked in the library.A. he was very afraid of the dark. B. he became interested in this placeC. his mom was worried about himD. His friend became nervous about him. 解析：。s books to the library on his way to Jim39。故選D。根據(jù)第二段第二句He thought he had read a lot during the school year. 可知他認(rèn)為他在這一學(xué)年里讀了很多書。d just drop the books off in the outside return box，but it was locked. 可知今天他想把書放在外面的返還箱里，但是被鎖上了。故選D。根據(jù)最后一段中描述David的行為和心理活動，可知他逐漸對圖書館感興趣了。答案：46. D 47. B 48. D 49. D 50. BBYou Can Make a Windsock(風(fēng)筒)Have you ever seen a windsock blowing in the wind？Well，you can make one of your own! This is a fun project that you can do with things you may have. You just need to follow a few easy steps. You will need：●one piece of heavy colored paper five ribbons●strong tape a string●a pencilWhat to do：Step 1：Draw pictures on the paper. You can write your name on it. Do anything that will make it special to you.Step 2：Make the paper into the shape of a tube. Hold one of the shorter edges（邊緣） over he other. Then make them together with the tape at each end and in the middle.Step 3：Use a pencil to make a hole into both sides of the tube. The holes should be only on one end of the tube. Pull the string through both holes. Then tie the ends of the string together. Step 4：Now make five holes around the top of the other end of the tube. Put a ribbon through each of the holes. Tie a knot in the ends. Make sure the knots are bigger than the holes.Now your windsock is ready to use，but how does it work？The shape of the tube plays an important part. Wind blows through the tube and makes it fly and dance around. Hold the windsock up in the air by its string and run around. It will fly behind you. You can also hang it outside and watch it dance around on its own!51. You draw pictures on the paper to make the windsock ________.A. funB. heavyC. strongD. special52. Which of these things do you need for ________ Step 2?A. Tape. B. Ribbons. C. A pencil. D. A string. 53. What do you do after you put ribbons through the holes in the tube?A. Make holes in the tube. B. Tape the tube together. C. Tie knots in the ribbons. D. Put a string through the hole. 54. What is probably the most important to make a windsock work?A. Its shape. B. Its size. C. The color of the paper. D. The number of the holes. 55. What is the main purpose of this article?A. To tell an interesting story. B. To explain how to do something. C. To teach an important lesson. D. To show what a windsock is like. 解析：。，結(jié)合第二步Hold one of the shorter edges（邊緣） over he other. Then make them together with the tape at each end and in the middle可知是需要磁帶，故選A。結(jié)合第四步Tie a knot in the ，故選C。結(jié)合最后The shape of the tube plays an important part可知是管的形狀是最重要的，故選A。結(jié)合第一段Have you ever seen a windsock blowing in the wind? Well, you can make one of your own可知是告訴我們風(fēng)筒是什么樣的，故選D。t struggle（掙扎；奮斗） to leave the chrysalis，it can39。s death forced him to mature fast. He had to bring up a family of nine people. He took up the challenges and overcame them. Today his brothers and sisters are leading successful lives.Sometimes challenges do not appear to us because we keep away from them. So some parents and teachers actively encourage young people to face challenges. They might organize some activities for young people which provide them with challenges，like rock﹣climbing，camping，volunteer work and so on. However，just passing exams will not prepare a person for life. We must meet and overe challenges. The young people of today will bee the leaders of tomorrow. For countries to continue to bee successful，it is important that the young people learn to meet challenges and overe them.56. From the story we know that the butterfly can39。s example shows that successful people should __________. A. overe the difficultiesB. take up business earlyC. bee the leaders of tomorrowD. sell clothes from door to door58. The meaning of the underlined word mature in the passage is__________. A. wake upB. give upC. grow upD. bring up59. What is the writer trying to do in this passage?A. Describe where a butterfly es from. B. Encourage young people to face challenges. C. Suggest how to bee a successful businessman. D. Explain what will happen if a person fails the exam. 60. What is the best title for this passage?