1、温馨提示： 此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。关闭Word文档返回原板块。单元素养培优(二) Unit 1. 单词拼写1. He thought it was very difficult and hoped to speak Chinese fluently (流利). 2. However, a nationwide school lunch program actually (事实上)plays a key role. 3. Some students are addicted (有瘾的) to mobile phones both ph
2、ysically and mentally. 4. Many schools need volunteers (志愿者) to show children how to read. 5. The couple were attracted(吸引) by the beauty of nature, so they decided to spend another two days. 6. Since his parents died early, he had to earn his own living when he was a teenager (青少年). 7. Obviously (明
3、显地), he is interested in English and cartoons. 8. Whatever happens, we must stay calm first and then find a wise solution (解决办法). 9. We were all deeply moved and proud of having such a responsible (负责的) teacher. 10. Teachers recommend (建议) parents should not allow their children to play computer gam
4、es too much. . 单句语法填空1. I often take my son to bookstores to find something suitable(suit) for him to read. 2. There was a confused(confuse) look on his face when he met with the problem. 3. The little girl preferred to go(go) to the cinema rather than stay at home alone that night. 4. It is recomme
5、nded that the machine (should) be checked(check) every year. 5. I have to put it away and focus my attention on study this week. 6. As the boy is addicted to playing(play) computer games, he has lost all interest in his lessons. 7. The meeting is scheduled(schedule) to last three days. 8. After grad
6、uation/graduating(graduate) from medical school, she decided to further her education in Paris. 9. It is said that next years Chinese class is going to be very challenging (challenge). 10. It is unwise to give the children whatever they want. . 完成句子1. If you want to be part of it, please sign up for
7、 it before June 2 at the website of our school. 如果你想参加, 请于6月2日前在我们学校网站报名。2. The little boy saved every coin so that he could buy his mother a present on Mothers Day. 小男孩把每一个硬币都攒起来, 以便在母亲节给母亲买礼物。(so that)3. I will clean up after dinner, and I also help with other things like sweeping and dusting. 晚饭后
8、我会打扫卫生, 并且我也会帮忙做些其他事情, 比如, 扫地和除尘。4. This makes it possible for agriculture and industry to develop quickly. 这使工农业有可能快速发展。(it作形式宾语)5. Why not have a picnic this afternoon? 今天下午为何不去野餐呢? 6. Visitors can book tickets seven days in advance. 游客可以提前七天订票。. 写出下列加黑短语的类型及其在句中所作成分1. She is my best friend. 名词短语;
9、 作表语2. The bottle is full of water. 形容词短语; 作表语3. He is a very good teacher. 形容词短语; 作定语4. This old house is for sale. 名词短语; 作主语5. We consider him a good artist. 名词短语; 作宾语补足语6. I find the problem really confusing. 形容词短语; 作宾语补足语7. Much interested, he agreed to give it a try. 形容词短语; 作状语8. Chinese tea ha
10、s become a green, healthy and popular drink. 名词短语; 作宾语9. Paul doesnt have to be made to learn. He always works very hard. 副词短语; 作状语10. Harvard is one of the most famous universities in the United States. 名词短语; 作表语. 阅读理解A(2021渭南高一检测)Many teenagers feel that the most important people in their lives ar
11、e their friends. They believe that their family members dont know them as well as their friends do. In large families, it is quite often for brothers and sisters to fight with each other and then they can only go to their friends for some ideas. It is very important for teenagers to have one good fr
12、iend or a group of friends. Even when they are not with their friends, they usually spend a lot of time talking among them on the phone. This communication is very important in childrens growing up, because friends can discuss something. These things are difficult to tell their family members. Howev
13、er, parents often try to choose their childrens friends for them. Some parents may even stop their children from meeting their good friends. Have you ever thought of the following questions? Who chooses your friends? Do you choose your friends or your friends choose you? Have you got a good friend y
14、our parents dont like? Your answers are welcome. 【文章大意】文章论述了孩子们交朋友的原因和其重要性, 也建议父母应该更好地了解他们的孩子。1. Who do many teenagers think can understand them better? A. Parents. B. Brothers. C. Sisters. D. Friends. 【解析】选D。细节理解题。根据第一段可知, 许多青少年认为他们生活中最重要的人是他们的朋友。他们认为家人不像朋友那样了解他们。由此可知, 许多青少年认为朋友可以更好地理解他们。故选D。2. Wha
15、t do teenagers usually do when they have something difficult to tell their parents? A. Stay alone at home. B. Fight with their parents. C. Discuss it with their friends. D. Go to their brothers and sisters for help. 【解析】选C。细节理解题。根据第二段最后两句可知, 这种交流在孩子的成长中是非常重要的, 因为朋友可以讨论一些事情。这些事情很难告诉他们的家人。由此可推知, 当青少年有
16、事难以告诉他们的父母时, 他们通常与他们的朋友讨论。故选C。3. What does the underlined sentence “Your answers are welcome. ” mean? A. You are welcome to discuss the questions with us. B. Weve got no idea, so your answers are welcome. C. Your answers are always right. D. You can give us all the right answers. 【解析】选A。词句猜测题。根据上文询问
17、的一些具体的问题可知, 画线句Your answers are welcome. 意为“欢迎你和我们讨论这些问题的答案”。故选A。4. Which of the following is the writers attitude? A. Parents should choose friends for their children. B. Children should choose everything they like. C. Parents should understand their children better. D. Teenagers should only go to
18、their friends for help. 【解析】选C。推理判断题。根据第二段中This communication is very important in childrens growing up, because friends can discuss something. “这种交流在孩子的成长中是非常重要的, 因为朋友可以讨论一些事情。”以及第三段中Some parents may even stop their children from meeting their good friends. “一些父母甚至可能阻止他们的孩子去见他们的好朋友。”可知, 作者对孩子交朋友是支持
19、的, 认为父母不应该过多干涉他们, 因此“父母应该更好地了解他们的孩子。”是作者的态度。故选C。B(2021莆田高一检测)I was never very neat, while my roommate Kate was extremely organized. Each of her objects had its place, but mine always hid somewhere. She even labeled(贴标签) everything. I always looked for everything. Over time, Kate got neater and I got
20、 messier. She would push my dirty clothing over, and I would lay my books on her tidy desk. We both got tired of each other. War broke out one evening. Kate came into the room. Soon, I heard her screaming. “Take your shoes away! Why under my bed! ” Deafened, I saw my shoes flying at me. I jumped to
21、my feet and started yelling. She yelled back louder. The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Kate answered it. From her end of the conversation, I could tell right away her grandma was seriously ill. When she hung up, she quickly cr
22、awled(爬)under her covers, sobbing. Obviously, that was something she should not go through alone. All of a sudden, a warm feeling of sympathy rose up in my heart. Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even on her side. I got so into
23、 my work that I even didnt notice Kate had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. I looked up into her eyes. She smiled at me, “Thanks. ”Kate and I stayed roommates for the rest of the year. We didnt always agree,
24、 but we learned the key to living together: giving in, cleaning up and holding on. 【文章大意】作者与室友生活习惯迥异, 时有摩擦, 但是在室友遭遇悲痛之时, 作者以实际行动表达自己的同情, 从而达成和好。5. What made Kate so angry one evening? A. She couldnt find her books. B. She heard the author shouting loud. C. She got the news that her grandma was ill.
25、D. She saw the authors shoes beneath her bed. 【解析】选D。细节理解题。根据第二段可知, 室友生气是因为作者乱丢乱放的鞋子。故选D。6. The author tidied up the room most probably because . A. she was scared by Kates angerB. she hated herself for being so messyC. she wanted to show her careD. she was asked by Kate to do so【解析】选C。推理判断题。根据第三段中的
26、All of a sudden, a warm feeling of sympathy rose up in my heart. 可知, 作者整理房间是出于对室友悲伤的同情, 想表达自己的关切。故选C。7. How is Paragraph 1 mainly developed? A. By analyzing causes. B. By showing differences. C. By describing a process. D. By following time order. 【解析】选B。推理判断题。第一段对比描述了作者与室友在日常习惯上的种种差异。由此可以推断出第一段是通过展
27、示差异进行阐述。故选B。. 阅读填句(2021珠海高一检测)How to Have a Successful Teenage LifeEveryone wants to succeed in their life, dont they? Even as a teenager, you can achieve success in your life. It really isnt that hard. 1Do well in school. No matter how boring it is now, education will help you be a productive membe
28、r in society. Try your best in excellence in school: listen to the teachers, do your homework, study and get good grades. Doing so will help you get into a better university, which will enable you to have a bright future. 2Do good in your community. 3Volunteering at an animal shelter. If you love he
29、lping the environment, plant trees or pick up litter. When you help others, it will make you feel better about yourself. 4Remember, theyre there to help you be the best that you can be. Respect them and value their opinions, even if they annoy you sometimes. 5You dont get to choose your teachers or
30、your family, but you still have to put up with them. Learn how to deal with people now, because when you are an adult, you dont get to choose your boss or your co-workers, so learn how to respect them now. A. Live life fully. B. Be nice to your parents and teachers. C. School sets you up on the righ
31、t track. D. Find chances to do voluntary work that interests you. E. It will help you pass time and develop your personality. F. Here are some important points that you may find helpful. G. Keep in mind that they do the things because they care about you. 【文章大意】文章主要说明了拥有成功的青少年生活的方法。1. 【解析】选F。空处为第一段最
32、后一句, 有启示下文的作用, 结合后文主要说明了一些如何拥有成功的青少年生活的要点, 可知F选项“这里有一些你可能会发现有用的要点”符合语境, 故选F。2. 【解析】选C。根据上文可知, 本段主要说明了学校对于拥有成功的青少年生活的作用, 本句为本段最后一句, 总结上文, 且上文中school可对应C选项中的School。故C选项“学校让你走上正确的道路”符合语境, 故选C。3. 【解析】选D。根据上文“Do good in your community. (为你的社区做好事。)”以及后文可知, 本句为过渡句, 上文“为社区做好事”即参与志愿工作, 后文中Volunteering可对应D选项中
33、的voluntary work。故D选项“找机会做你感兴趣的志愿工作”符合语境, 故选D。4. 【解析】选B。根据下文可知, 你不能选择你的老师或你的家人, 但你仍然必须忍受他们。本段主要说明的是对待老师和父母的态度, 后文中your teachers or your family可对应B选项中的your parents and teachers。故B选项“善待你的父母和老师”符合语境, 故选B。5. 【解析】选G。根据上文可知, 本句承接上文进一步解释说明尊重父母和老师的原因, 且上文中Remember可对应G选项中的Keep in mind。故G选项“记住, 他们做这些事是因为他们关心你”
34、符合语境, 故选G。. 完形填空(2021济宁高一检测)I have a close childhood friend. He spent the last eight years attending night 1 to get his bachelors degree (学士学位) while also doing a full-time job. Last month, after years of late nights and weekends of studying, he 2 graduated. He 3 in our hometown after high school, 4
35、 most of his friends, myself included, left long ago for other states for university and jobs. Over time, work, families, and other 5 have made it difficult for us all to be 6 in our hometown at the same time. I put forward a wonderful idea: plan a weekend that wed all be 7 to fly back to our hometo
36、wn to surprise him and celebrate his 8. It was so much fun 9 the affair. The bait (诱饵): his mom told him that he was going to have 10 with just his grandparents to celebrate. Little did he know that the family dinner would 11 a 20-person affair with friends from all around the States. I got to 12 a
37、cake so that everyone 13 could enjoy it. When the guest of honour arrived to “dinner with the 14 ”, he was greatly surprised and told us it made him feel special. The “white lie” dinner plan was a great 15 for me. 【文章大意】文章讲述了作者儿时的朋友在家乡花了八年时间读夜校, 终于拿到了学士学位。他的大多数朋友, 包括作者自己都离开家乡外出求学和工作, 很少回家乡与他相聚。这次为了庆
38、祝他历经千辛万苦获得的学士学位, 作者和其他朋友为他专门举办了一个惊喜毕业宴会。1. A. clubB. partyC. cafeD. school【解析】选D。句意: 他上夜校八年最后获得了学士学位, 与此同时他还有一份全职工作。根据下一句中的“graduated”可知, 朋友毕业获得学士学位, 这是需要通过上学获得的。attend night school表示“上夜校”, 符合语境。故选D。2. A. finallyB. quicklyC. suddenlyD. luckily【解析】选A。句意: 上个月, 经过多年的夜晚和周末的学习, 他终于毕业了。结合前面的信息, 朋友在全职工作的情况
39、下读了八年的夜校, 历经千辛万苦, 他“终于(finally)”毕业了。故选A。3. A. taughtB. stayedC. arrivedD. married【解析】选B。句意: 高中毕业后, 他留在了我们的家乡, 但他的大多数朋友, 包括我在内, 早就离开家乡去其他州上大学和工作了。根据后文“fly back to our hometown to surprise him(乘飞机回到家乡给他送去惊喜)”可推知, 他在高中毕业后留在了家乡。故选B。4. A. butB. soC. orD. for【解析】选A。空前提到高中毕业后他留在了家乡, 空后讲他的大多数朋友离开了家乡去上大学和工作。
40、因此空前后的两个分句在语意上是转折关系。故选A。5. A. adventuresB. requestsC. experiencesD. arrangements【解析】选D。adventure冒险; request要求; experience经历; arrangement 安排。本句讲的是作者及其他朋友为什么很难同时回到家乡, 原因包括工作、家庭等。此处填入“冒险、要求、经历”与work和families并列是不合适的, 而other arrangements表示“除了工作、家庭之外的安排”, 即包含了很多因素, 符合语境。故选D。6. A. insideB. apartC. backD. o
41、ut【解析】选C。句意: 随着时间的推移, 工作、家庭和其他安排使我们很难同时回到家乡。由下文“fly back to our hometown”中的“back”一词可知, 朋友们要乘飞机“回到(be back)”家乡。故选C。7. A. safeB. eagerC. freeD. anxious【解析】选C。句意: 我提出了一个绝妙的主意: 计划选择一个周末, 我们都能有空闲飞回家乡, 给他一个惊喜, 庆祝他的成就。上文提到工作、家庭和其他安排让他们很少同时回到家乡, 因此安排出一个周末以便大家“有空闲”都回去。故选C。8. A. birthdayB. achievementC. exami
42、nationD. wisdom【解析】选B。birthday生日; achievement 成就; examination考试; wisdom 智慧。朋友在全职工作的情况下读了八年的夜校终于毕业了。毕业是他历经千辛万苦取得的“成就”。因此朋友们包括作者本人从外地飞回家乡庆祝他的成就。故选B。9. A. debatingB. studyingC. planningD. controlling【解析】选C。句意: 策划这件事真是太有趣了。根据后文“The white lie dinner plan was a great for me. ”可知, 这次聚餐计划是一个善意的谎言, 作者及朋友们决定由
43、他的母亲出面, 告诉他是去与自己的祖父母一起吃饭, 到时他却发现变成了有20人参加的同学聚会, 他一定会很惊讶, 因此这是在他不知情的情况下“策划”的一件事情, plan是提示词。故选C。10. A. lunchB. dinnerC. timeD. fun【解析】选B。句意: 他妈妈告诉他, 他要和祖父母一起吃晚饭庆祝他的毕业。由下文“When the guest of honour arrived to dinner with the ”可知, 妈妈告诉他, 他要与祖父母一起吃 “晚饭”。故选B。11. A. turn intoB. give upC. relate toD. focus o
44、n【解析】选A。句意: 他不知道这顿家庭晚餐会变成一场20人的聚餐, 他的美国各地的朋友们也参加了这场聚会。 turn into变成; give up放弃; relate to 与有关; focus on 关注。朋友们回来是为庆祝他毕业的, 但他并不知道。妈妈告诉他, 他要和祖父母一起吃饭。最后他发现这顿饭“转变”为一个有20人参加的聚会。故选A。12. A. sellB. deliverC. cutD. order【解析】选D。sell卖出; deliver 寄 送, 交付; cut削减; order 订购。根据本句后面部分可知, 为了每个人能吃到蛋糕, 作者去“订购(order)”一个蛋糕
45、。故选D。13. A. attendingB. leavingC. receivingD. tasting【解析】选A。句意: 我去订购了一个蛋糕, 让所有参加的人都能享用。此处用attending作后置定语修饰everyone表示到场参加聚餐的每一个人, 符合语境。故选A。14. A. teachersB. grandparentsC. classmatesD. friends【解析】选B。句意: 当他回来与祖父母共进晚餐时, 他非常惊讶并告诉我们这让他感到很特别。由上文“his mom told him that he was going to have with just his gra
46、ndparents to celebrate”可知, 上文谈到朋友的母亲告诉他, 他要和“祖父母”一起吃晚饭。故选B。15. A. surpriseB. worryC. successD. stress【解析】选C。句意: 这个“善意的谎言”晚餐计划对我来说是一个巨大的成功。由前文“he was greatly surprised and told us it made him feel special”可知, 朋友很感动, 因此这个计划是成功的。故选C。. 语法填空(2021长沙高一检测)Diet and way of life are often a problem for teenage
47、rs. However, if you eat the right food and exercise 1. (regular), you can feel better, look better and have more energy. So healthy eating along 2. regular exercise is probably the only way to become fit. As a teenager it is important 3. (give) your body the energy it needs. For a healthy diet, you
48、should eat mostly rice, bread, vegetables and fruit. You also need to drink a lot of water. 4. (drink) enough water will improve your skin and give you healthy hair. Exercise is something 5. can help to make you look good, feel good and be healthy. Teenagers should spend at least 30 minutes exercisi
49、ng, five times a week. Walking and riding your bike count and 6. do school sports. When you exercise, your body produces 7. (chemical) that make you feel peaceful and 8. (relax) and increase your ability to concentrate when you study. A good amount of sleep every night 9. (be) also important for you
50、r health. Teenagers need eight to ten hours of sleep each night. If you follow the suggestions above, you will look and feel much 10. (good) in no time at all! 【文章大意】文章给青少年提出了一些有关健康饮食以及锻炼的建议。1. 【解析】regularly。考查副词。句意: 但是, 如果你吃合适的食物, 定期地锻炼, 你就会感觉更好, 看起来更健康并且更有精力。这里用副词修饰动词exercise, 故填regularly。2. 【解析】w
51、ith。考查固定短语。句意: 因此, 健康饮食以及定期锻炼也许是保持健康的唯一方法。这里需要用连词连接healthy eating 和regular exercise, along with和一起, 除以外(还), 以及, 故这里填with。3. 【解析】to give。考查非谓语动词。句意: 作为青少年, 给你的身体它所需要的能量非常重要。此处考查it作形式主语句型: it is+ adj. +to do sth. 。故填to give。4. 【解析】Drinking。考查动名词作主语。句意: 喝足够的水会改善你的皮肤并且让你拥有健康的头发。这里用动名词作主语, 故填Drinking。5.
52、【解析】that。考查定语从句的关系代词。根据结构可知, 此句不定代词something为先行词, 后接定语从句, 只能用关系代词that。故填that。6. 【解析】so。考查固定用法。句意: 走路和骑自行车是有用的, 学校运动也有用。根据句意可知, 这里前后主语适用于相同的情况, 肯定句用so引导部分倒装句。故填so。7. 【解析】chemicals。考查名词的数。空后是定语从句that make. . . , that指代了空格中的名词, 根据主谓一致关系可知, 这里先行词用复数形式。故填chemicals。8. 【解析】relaxed。考查形容词作表语。句意: 当你在锻炼时, 你的身体
53、产生让你感到平静和放松的化学物质。这里用形容词relaxed和peaceful作并列表语。故填relaxed。9. 【解析】is。考查主谓一致。句意: 每晚足量的睡眠对于你的健康也很重要。主语是不可数名词A good amount of sleep, 所以谓语动词用单数。故填is。10. 【解析】better。考查比较级。句意: 如果你遵循上面的建议, 你会立刻看起来更健康, 也会感觉更健康! 根据句意以及much用来修饰比较级的用法, 可知这里填better。. 读后续写阅读下面材料, 根据其内容和所给段落开头语续写两段, 使之构成一篇完整的短文。In September 1960, I w
54、oke up one morning with six hungry babies and just 75 cents in my pocket. Their father was gone. My boys were from three months to seven years, and their sister was two. I cleaned up the kids until they looked brand new, and then put on my best homemade dress. I put them into the old car and drove o
55、ff to find a job. The seven of us went to every factory, store and restaurant in our small town. No luck. The last place we went to was now called the Big Wheel, and an old lady named Granny owned the place. Finally she told me she needed someone to work from 11 at night to 7 in the morning. She pai
56、d 65 cents an hour, and I could start that night. I returned and left the children at home. Then I left to start my new job at the Big Wheel. As the weeks went by, the tires(轮胎)on the old car began to leak(漏气). I had to fill them with air on the way to work and again every morning before I could go
57、home. One cold fall morning, I dragged myself to the car to go home and found four tires in the back seat. New tires! There was no note, just those beautiful brand new tires. Christmas was coming, and I knew there would be no money for toys for the kids. So, I found a can of red paint and started re
58、pairing and painting some old toys. Then I hid them in the basement so there would be something for Santa to deliver on Christmas morning. Clothes were a worry too. I was sewing patches(补丁)on top of patches on the boys pants, and soon they would be too far gone to repair. 注意: 续写词数应为150个左右。When it wa
59、s time for me to go home at seven oclock on Christmas morning, I hurried to the car. _As I drove back through empty streets, the sun slowly rose on the most amazing Christmas Day. _【参考范文】When it was time for me to go home at seven oclock on Christmas morning, I hurried to the car. I looked carefully
60、 into one of the side windows. I was shocked. My old car was filled full to the top with boxes of all shapes and sizes. I opened the top box. Inside was a whole case of little different sizes of blue jeans! I looked inside another box. It was full of shirts to go with the jeans. Then I looked inside
61、 some of the other boxes. Finally, there were five toy trucks and one beautiful little doll! As I drove back through empty streets, the sun slowly rose on the most amazing Christmas Day. I was sobbing with gratitude. Arriving home, I hurriedly dressed my kids with new clothes. Each one got their own
62、 new gifts. We also had enough food to spend the holiday. I will never forget the joy on the faces of my little ones on that precious morning. 阅读理解From: terriwombat. com. auTo: (happylizijun)yahoo. com. cnSubject: My schoolHi, Li Zijun, Thanks very much for your email. I really enjoyed reading it. I
63、 think we have a lot in common. I wonder if our school life is similar too. I go to a big high school in Sydney called Maylands High School. There are about 1, 000 students and 80 or so teachers. My class has 25 students in it, which is normal for a Year 11 class. In the junior school there are abou
64、t 30 students in a class. In the senior high school we have lots of subjects to choose from, like maths, physics, chemistry, biology, history, German, law, geography, software design, graphic arts and media studies. (Different schools sometimes have different optional subjects. ) English is a must f
65、or everyone and we have to do at least three other subjects in Year 11 and Year 12. At the end of Year 12 we sit for a public exam called the High School Certificate. As well as school subjects, most of us do other activities at school such as playing a sport, singing in the choir or playing in the
66、school band. We can also belong to clubs, such as the drama club, the chess club and the debating society. We have a lot of homework to do in senior school to prepare for our exam, so unless I have basketball practice, I usually go straight home and start studying. I arrive home at about 4 pm, make
67、myself a snack and work till 6. Then I help the family to make dinner and we all eat together. Im usually back in my room studying by 8 pm. I stop at about 10 oclock and watch TV or read a book for half an hour to relax. On Saturdays, I usually go out with my family or with friends and I sleep in ti
68、ll late on Sunday morning. Then its back to the books on Sunday afternoon. How about you? Whats your school life like? Do you have a lot of homework? What do you do to relax when youre not studying? Im looking forward to finding out. Your Australian friend, Terri【文章大意】本文是一位澳大利亚学生给中国网友写的一封邮件, 属于应用文,
69、介绍了澳大利亚的高中。1. How many subjects do the students have to do at least in Year 11 and Year 12? A. 11. B. 3. C. 4. D. 6. 【解析】选C。细节理解题。根据第三段中English is a must. . . at least three other subjects in Year 11 and Year 12. 可知总计至少4门课程。2. What does the underlined phrase “sit for” in Paragraph 3 mean? A. passB. takeC. failD. hold【解析】选B。词义猜测题。第12学年末, 我们要参加名为高中学业水平的公开考试。sit for 参加, 应考。3. What does Terri usually do on Sunday afternoon? A. Read books. B. Play in the school band. C. Play basketball. D. Help her family to prepare dinner. 【解析】选A。细节理解题。从第五段最后一句得知, Terri通常在周日下午读书。关闭Word文档返回原板块