Unit 3 Past passing by 单元话题选词填空10篇-2026-2027学年九年级英语上册单元练习（外研版）

**基本信息** 本单元卷聚焦“考古发现与历史”主题，设10篇选词填空专题训练，分基础巩固与重难提升两层，适配初中英语单元复习，通过文化传承素材提升语言能力与文化意识。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |选词填空|10篇（基础5篇+提升5篇）|基础篇含三星堆、郑州商代遗址等素材，考查culture, history等名词及amazed, creative等形容词形式；提升篇涉及海昏侯墓针灸针、中华龙鸟化石，需综合运用connect, medical等词汇及语法转换|情境融合文化传承（如丝绸之路、秦兵马俑），问题设计分层（基础巩固词汇，提升训练语篇逻辑），契合核心素养中语言能力与文化意识的培养|

Unit 3 Past passing by 单元话题选词填空练习 单元话题：考古发现与历史 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 聚焦基础，巩固自我 重难语篇提升练 专注提升，挑战自我 ◇考点 01 基础语篇巩固练 用所给词的适当形式填空。 culture, history, treasure, discovery, effort, amazed, creative, secret, remain, archaeologist, believe, open Dear friends, Every 1 has its 2 . In this unit, we have learnt about Sanxingdui, the 3 of the ancient Shu Kingdom. It is such an amazing place that it is now world-famous. Archaeologists have been working there since 1934. Many people before them put in a great deal of 4 . The surprising discoveries are the fruit of 90 years of hard work. The finds at Sanxingdui provide a missing piece of Chinese 5 . It proves that Chinese culture was 6 from a very early period. People in the ancient Shu Kingdom were so 7 that we are 8 by their wonderful works. The 9 are so beautiful that they come alive in my imagination. Although we have found a large number of things, we are far from getting the whole picture. There are still many 10 to be dug into. Let’s work hard so that we can know more about our wonderful past! 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。 protect    tradition    ancient    we    build    with    home    city    know    visit The city of Zhengzhou, the capital of Henan Province, is 1 as a transportation hub (枢纽) in China. It connects the east and west, the north and south. What’s more, it is also 2 to a long history. One of the most famous historical sites here is the Shang Dynasty Ruins (商代遗址), which are important to Chinese civilization. It is truly a treasure for all of 3 . The ruins show us that more than 3,600 years ago, a great 4 stood on this land. Archaeologists (考古学家) have taken out many important discoveries there, including bronze ware (青铜器) and pottery. These relics (遗迹) tell us about the life and culture of 5 people. Nowadays, the government is 6 a new cultural park around the ruins. It is not only a place to 7 history but also a wonderful place for people to relax. 8 can walk through the park to enjoy the mix of ancient culture and modern life. This project helps us connect 9 our past. It reminds us that while we are running towards the future, we should never forget our 10 culture. different  die  travel  be  thousand  include  patient  they  place(v.)  near Most people wouldn’t feel the need to have an army to protect them after they died. However, the first emperor of China, Qin Shi Huangdi, was not like 1 . He ordered workers to create an army out of clay and 2 it near his tomb (墓). The task of building the terracotta army was huge. It is estimated that workers and craftsmen (工匠) worked 3 forty years to build this tomb. Life-size figures had to be made by hand without any modern tools. Each warrior looked 4 , leading some historians to believe that they were modeled after real soldiers (士兵) in Qin’s army. What’s terrible is that it is said 5 of people were buried along with Qin Shi Huangdi and the Terracotta Army, 6 these craftsmen. When finished, the warriors were armed with real weapons. Over the years, the terracotta warriors suffered from natural disasters and man-made destruction (破坏). About 2, 000 figures have 7 restored (修复) so far, but most of them are still waiting to be put together. Experts must do the work with great 8 because restoring the figures is very complex. In 2025, more than 10 million people came to the Terracotta Army Museum. For many young visitors, this trip is like 9 back to ancient China and they are inspired to learn more about Chinese history. The Qin dynasty ended four years after the emperor’s 10 , but it has made great contributions to history and will never be forgotten. 阅读短文，从方框内选出正确的词并用其适当形式填空，使短文通顺、意思完整。将所填答案填写在题后相应题号的横线上。 happen,   valuable,   read,   but,   excited,   purpose,   position,   cover,   relationship,   product As one of the many oasis (绿洲) states in ancient China’s Western areas, part of today’s Xinjiang, Loulan used to be a beautiful and important place during the Han Dynasty. But then it disappeared from history, and its cities were 1 by endless sand. In the early 1900s, a Swedish person discovered Loulan by chance in the Taklimakan Desert. This discovery made people around the world 2 to learn more about Loulan. Loulan sat at the 3 where the ancient Silk Road’s southern and northern routes (路线) met. It used to be a busy place where people from the East and the West met to trade 4 and share ideas. Beautiful cloths found here show the close 5 between the central andWestern areas of ancient China. “Everything here is full of history and culture. It’s so 6 ,” says 19-year-old AdiljanJilir, the youngest of the rangers (巡护员) whose 7 is to protect the Loulan Ruins (遗迹). Adiljan and his teammates watch over the Loulan Ruins every day. They face not only uninvited visitors, 8 also terrible weather and the feeling of being very lonely. Strong winds and sandstorms 9 a lot. In summer, the surface temperature can reach 70°C． Ma Zhuang, another ranger, says he knew little about Loulan before taking the job. But after 10 a lot of history books, he fell in love with it. He wants to protect it with all his heart. 阅读下面短文，根据语篇内容，用方框中所给词的正确形式填空，使短文通顺、连贯。方框中有两个词为多余项。 set, old, find, important, lately, laugh, record, surprise, probable, seem, he, event Last February in the remains of an ancient palace in Xi’an, Chinese archeologists (考古学家) discovered several broken parts of a 2, 400-year-old flush toilet (抽水马桶). They believe it might be the world’s 1 flush toilet. Although it’s nearly impossible 2 the upper parts of it, what’s left is still in good shape. “It is the first and only flush toilet that has been unearthed (出土) in China,” said Liu Rui, a researcher. “Everybody on the research team was 3 when we found it, and then we all 4 .” Described by researchers as a “luxury (奢华的) object”, the toilet is thought to have been located inside the palace. The researchers believe this toilet was 5 for important people between the Warring States Period and the Han Dynasty and might have been used by Duke Xiao of Qin or 6 father, Duke Xian of Qin. Liu pointed out that maybe the toilet 7 indoors and connected to an outdoor pit (深坑). The servants would pour water into it every time the owner used the toilet. There are many historical 8 about toilets in ancient China and some ancient toilets have been unearthed. It shows that the ancient Chinese people already realized the 9 of hygiene (卫生). And surprisingly, it 10 that there is not too much difference between ancient toilets and the modern ones. 根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空，将单词填写在答题卡对应的横线上。每个单词只能用一次。 popular   for    when    role    price    share    beauty   matter    know   language Silk is a thin and pretty fiber (纤维制品). Thousands of years ago in ancient China, people began making silk fiber into a soft fabric (织物). It was very 1 . However, silk could only be used in the palace because of its high 2 at first. Silk in China was not a secret. 3 ancient Chinese paid a visit to other countries, they usually carried gifts made of silk. The people in other countries started to use this unusual thing. It soon became widely 4 in the West. Silk business always encouraged businessmen to search 5 ways from Europe to the Far East. Later they came to be 6 as “the Silk Road”. At the same time, some people found sea routes (路线). The Silk Road played an important 7 in bringing different cultures and people from different countries into communication. To make successful deals, people had to learn the 8 and cultures of other countries first to make better communications. Through them, people could 9 knowledge about arts, science and technologies. No 10 in the past or at present, the Silk Road is of great help to the tour of the countries along the route. 请从方框内选择适当的词，并根据需要用其正确形式填空，使文章语法正确、完整连贯，并将答案写在答题卡对应题目的答题位置上。注意: 每空一词，每词仅用一次，有两词为多余项。 activity　all　because　history　however　keep　over　ring　special　where　though　what Macao is a beautiful city on the southern coast of China. Its 1 can date back to the Warring States Period. 2 ，it was ruled by Portuguese (葡萄牙人) for over 400 years. As early as seventy­-six years ago, the five-star red flag was already flying high 3 the land of Macao. Du Nam was the headteacher of Hou Kong Middle School in Macao. On October 1, 1949, Du Nam organized 4 the teachers and students in the school to raise the first Chinese national flag in Macao. The flag was raised when the national anthem (国歌) 5 out on the radio. At that time, Macao had not yet come back to the motherland. Du Nam never gave up 6 she faced a lot of difficulties. She said, “I’m a Chinese. I know 7 I should do. Since the People’s Republic of China has been founded, our national flag must be raised.” December 20, 1999 was a(n) 8 day. On that day Macao returned to the motherland. At that time, Du Nam was 87 years old. She was invited to raise Chinese national flag in Hou Kong Middle School. This school has 9 flag-raising for nearly seventy­-six years. Flag ­raising is one of the school’s important 10 . It educates the students to love our country forever. 根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。将单词填写在答题卡对应的横线上。每个单词只能用一次。 and   small   food   new   kind   have   from   one   them   be “The movie The Longest Day in Chang’an《长安三万里》 made me dream back to Chang’an.” a girl said. Let’s 1 a dream today. I’m 2 the Tang Dynasty’s capital Chang’an. People in your time call the city Xi’an. The Silk Road starts from Chang’an. That makes it become 3 of the most popular cities in the world. There are over 1,000,000 people in the city, and 200,000 of them are foreigners (外国人). Most of 4 come a long way along the Silk Road. They bring their goods (商品), arts 5 food, and they become an important part of our everyday life! Foreign clothes 6 popular in Chang’an. They always have close-fitting sleeves (窄袖) and turn-down collars (翻领), and they are 7 than ours. foreigners wear this kind of clothes. People in Chang’an like to wear them, too. This is hubing, a kind of popular 8 in the city. It’s a kind of cake with sesames (芝麻) on it. Travelers on the Silk Road like to eat it and bring it to Chang’an. Many 9 fruits and vegetables are brought to China, they come a long way along the Silk Road to our table. At the same time, many 10 of things different from China were also brought here. So amazing, right? ◇考点 02 重难语篇提升练 请先阅读下面短文，掌握其大意，然后用方框中所给词的适当形式填空，每个词限用一次。 show  smooth  because  sick  even  early  again  connect  medical  historian  theory Recently, Chinese experts made an amazing discovery in Jiangxi Province! In the tomb of the Marquis of Haihun (海昏侯墓), they found the 1 steel acupuncture needles (针灸针) in China. These tiny 2 instruments are over 2,000 years old and very thin, only 0.3 to 0.5mm wide. Acupuncture is an important part of Traditional Chinese Medicine (TCM). Ancient Chinese doctors developed a special 3 . They believed that good health depends on the 4 movement of energy (known as qi) inside the body. If this energy does not move properly, people will get 5 . Acupuncturists put very thin needles into special points on the body. There are hundreds of such points, and each point is 6 to different parts of the body. Putting the needles into these points helps the energy move freely 7 and this helps the body get better by itself. Acupuncture is used to help with many health problems, such as body pains, headaches, stress, and 8 common colds. Long ago, acupuncture needles were made of stone, animal bones, or bronze (青铜). Later, steel needles were developed 9 they were stronger, thinner, and could be used for a longer time. The discovery of these ancient steel needles is very important. It 10 the great wisdom (智慧) and skill of ancient Chinese doctors. For 11 , this discovery also helps them learn more about the long history of acupuncture—a tradition still widely used today, even in many other countries. 阅读下面的短文，根据短文内容，从下面方框内所给11个词中选择10个意义相符的词，必要时进行词形变化，填入空白处，每空一词。 help, it, with, lucky, one, piece, large, if, but, for, when In the summer of 1996, some strange-looking fossilized bones (骨骼化石) were dug up by a man in a dried-up lake. He was a farmer in the eastern part of China, who wondered: Could these be the remains (遗迹) of an ancient dragon? Not quite. Finally the study showed us that the bones actually belonged to a meat-eating dinosaur (恐龙), and 1 name was Sinosauropteryx prima (中华龙鸟). It was 2 than the size of a common chicken which lived about 120 million years ago. It was the 3 time to find fossils of dinosaurs in Liaoning, and it was the earliest one with feathers (羽毛). So, scientists said that Sinosauropteryx prima might have had tiny feathers, which is similar to the chicken. They have something in common! It may sound crazy 4 in fact not. Most scientists think today’s birds and dinosaurs are relatives. However, not everyone believes it. Many scientists wonder 5 some dinosaurs had feathers. Some bird scientists suggest that the feather-like structures (结构) may be 6 of scales (鳞片). Whatever they are, they are not the right size and shape 7 flying. It’s not easy to prove this because feathers are so weak that they usually rot (腐烂) away without a trace (踪迹). 8 , the fossils showed a lot of details (细节). For the study of the relationship between birds and dinosaurs, these details are very 9 . Yet still nobody knows 10 and why feathers appeared on the earth. Scientists hope to solve the puzzle (谜题) by studying the area where the fossils were found. “These beds date to a time when flowering plants and birds appeared,” says a professor. “The discovery of this area is just as important as going to Mars.” 学科网（北京）股份有限公司 $ Unit 3 Past passing by 单元话题选词填空练习 单元话题：考古发现与历史 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 聚焦基础，巩固自我 重难语篇提升练 专注提升，挑战自我 ◇考点 01 基础语篇巩固练 用所给词的适当形式填空。 culture, history, treasure, discovery, effort, amazed, creative, secret, remain, archaeologist, believe, open Dear friends, Every 1 has its 2 . In this unit, we have learnt about Sanxingdui, the 3 of the ancient Shu Kingdom. It is such an amazing place that it is now world-famous. Archaeologists have been working there since 1934. Many people before them put in a great deal of 4 . The surprising discoveries are the fruit of 90 years of hard work. The finds at Sanxingdui provide a missing piece of Chinese 5 . It proves that Chinese culture was 6 from a very early period. People in the ancient Shu Kingdom were so 7 that we are 8 by their wonderful works. The 9 are so beautiful that they come alive in my imagination. Although we have found a large number of things, we are far from getting the whole picture. There are still many 10 to be dug into. Let’s work hard so that we can know more about our wonderful past! 【答案】 1．culture 2．history 3．remains 4．effort 5．history 6．open 7．creative 8．amazed 9．treasures 10．secrets 【导语】本文围绕三星堆展开，介绍古蜀国文明遗迹、考古工作者的付出，赞美古蜀国先民的创造力，同时说明三星堆仍有许多未解之谜，呼吁大家探索中华灿烂过往。 1．句意：每一种文化都有属于它自己的历史。every后只能搭配可数名词单数，全文围绕文明、文化展开主题，名词culture贴合语境。 2．句意：每一种文化都有属于它自己的历史。its后需要名词作宾语，history意为“历史”，文化与历史相对应，语义通顺合理。 3．句意：在本单元我们了解了三星堆，古蜀国的文明遗存。固定搭配the remains of表示“……的遗迹、遗存”，remain表示古迹、遗存时必须使用复数形式remains。 4．句意：在他们之前，无数人为之付出了大量心血。a great deal of后接不可数名词，put in a great deal of effort是固定短语，意思是“付出巨大努力”。 5．句意：三星堆出土文物填补了中国历史缺失的一环。固定搭配Chinese history意为“中国历史”。 6．句意：这证明中华文化在很早的时期就具备开放包容的特质。本句为主系表结构，was后需要形容词充当表语，open作形容词表示“开放包容的”，契合古蜀文明多元开放的特点。 7．句意：古蜀国的人民拥有极高的创造力。so后接形容词，creative意为“富有创造力的”，用来修饰主语People，符合后文精美器物的描述。 8．句意：我们被他们巧夺天工的作品深深震撼。固定短语be amazed by，意为“对……感到惊叹”，修饰人要使用-ed结尾形容词amazed。 9．句意：这些珍宝精美绝伦，在我的脑海中栩栩如生。后文be动词为are，主语必须使用可数名词复数；treasure表示“文物珍宝”，复数形式treasures，对应三星堆出土各类器物。 10．句意：依旧还有许多秘密等待我们深入发掘。many后接可数名词复数，secret变为复数secrets。 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。 protect    tradition    ancient    we    build    with    home    city    know    visit The city of Zhengzhou, the capital of Henan Province, is 1 as a transportation hub (枢纽) in China. It connects the east and west, the north and south. What’s more, it is also 2 to a long history. One of the most famous historical sites here is the Shang Dynasty Ruins (商代遗址), which are important to Chinese civilization. It is truly a treasure for all of 3 . The ruins show us that more than 3,600 years ago, a great 4 stood on this land. Archaeologists (考古学家) have taken out many important discoveries there, including bronze ware (青铜器) and pottery. These relics (遗迹) tell us about the life and culture of 5 people. Nowadays, the government is 6 a new cultural park around the ruins. It is not only a place to 7 history but also a wonderful place for people to relax. 8 can walk through the park to enjoy the mix of ancient culture and modern life. This project helps us connect 9 our past. It reminds us that while we are running towards the future, we should never forget our 10 culture. 【答案】 1．known 2．home 3．us 4．city 5．ancient 6．building 7．protect 8．Visitors 9．with 10．traditional 【导语】本文是一篇说明文。文章主要介绍了河南省省会郑州市，它作为中国交通枢纽的重要地位，以及其悠久的历史和商代遗址的文化价值，还提到了政府正在围绕遗址建设新的文化公园，旨在连接过去与未来，提醒人们不忘传统文化。 1．句意：河南省省会郑州市是中国知名的交通枢纽。根据语境可知，此处表达郑州是“被大家所熟知的”交通枢纽，be known as“作为……而闻名”，应用know的过去分词known。 2．句意：更重要的是，它也是悠久历史的发源地。根据语境可知，此处表达郑州是悠久历史的“发源地”，be home to“是……的发源地”，应用名词home。 3．句意：它对我们所有人来说都是真正的宝藏。根据语境可知，此处表达“我们所有人”，of是介词，后面应用人称代词宾格us。 4．句意：遗址向我们展示了3600多年前，这片土地上矗立着一座伟大的城市。根据语境可知，此处表达“城市”，前面有不定冠词a，应用名词单数city。 5．句意：这些遗迹告诉我们古代人的生活和文化。根据语境可知，此处表达“古代的”，修饰名词people，应用形容词ancient。 6．句意：如今，政府正在围绕遗址建设一个新的文化公园。根据语境可知，此处表达政府正在“建设”文化公园，由is可知，应用现在进行时，动词用现在分词building。 7．句意：它不仅是一个保护历史的地方，也是人们放松的好地方。根据语境可知，此处表达“保护”历史，动词不定式作后置定语，修饰名词place，应用动词原形protect。 8．句意：游客可以漫步在公园里，享受古老文化与现代生活的融合。根据语境可知，此处表达“游客”，在句中作主语，应用名词visitor的复数形式Visitors，首字母大写。 9．句意：这个项目帮助我们与过去联系起来。根据语境可知，此处表达“与……联系起来”，应用介词with。 10．句意：它提醒我们，在奔向未来的同时，我们永远不要忘记我们的传统文化。根据语境可知，此处表达“传统的”，修饰名词culture，应用形容词traditional。 different  die  travel  be  thousand  include  patient  they  place(v.)  near Most people wouldn’t feel the need to have an army to protect them after they died. However, the first emperor of China, Qin Shi Huangdi, was not like 1 . He ordered workers to create an army out of clay and 2 it near his tomb (墓). The task of building the terracotta army was huge. It is estimated that workers and craftsmen (工匠) worked 3 forty years to build this tomb. Life-size figures had to be made by hand without any modern tools. Each warrior looked 4 , leading some historians to believe that they were modeled after real soldiers (士兵) in Qin’s army. What’s terrible is that it is said 5 of people were buried along with Qin Shi Huangdi and the Terracotta Army, 6 these craftsmen. When finished, the warriors were armed with real weapons. Over the years, the terracotta warriors suffered from natural disasters and man-made destruction (破坏). About 2, 000 figures have 7 restored (修复) so far, but most of them are still waiting to be put together. Experts must do the work with great 8 because restoring the figures is very complex. In 2025, more than 10 million people came to the Terracotta Army Museum. For many young visitors, this trip is like 9 back to ancient China and they are inspired to learn more about Chinese history. The Qin dynasty ended four years after the emperor’s 10 , but it has made great contributions to history and will never be forgotten. 【答案】 1．them 2．place 3．nearly 4．different 5．thousands 6．including 7．been 8．patience 9．traveling 10．death 【导语】本文讲述秦始皇令工匠造兵马俑，历经损毁与修复，成中外文化瑰宝。 1．句意：然而，中国第一位皇帝秦始皇却不像他们。前文提到“大多数人死后觉得无需军队守护”，此处用代词them指代前文的“Most people”，作介词like的宾语，符合指代逻辑。 2．句意：他下令工匠用陶土打造军队，并将其放置在陵墓附近。and连接并列不定式结构，与“to create”并列需填动词原形，place表示“放置”，符合语境。 3．句意：据估计，工人和工匠几乎耗时四十年建造这座陵墓。此处修饰数词“forty years”表“将近、近乎”，用副词nearly，贴合时间估算语义。 4．句意：每个兵马俑看起来都与众不同。系动词look后接形容词作表语，different表示“不同的”，呼应后文“仿真实士兵造型”的特点。 5．句意：据说成千上万的人与秦始皇及兵马俑一同被埋葬。固定搭配thousands of意为“成千上万的”，符合数量表达习惯。 6．句意：据说成千上万的人被埋葬，包括这些工匠。介词including表“包含、包括”，补充说明被埋葬人群的范围，逻辑通顺。 7．句意：截至目前，约2000个俑已被修复。“so far”是现在完成时标志，且兵马俑是“被修复”，需用被动语态结构“have been restored”，故填been。 8．句意：专家必须以极大的耐心完成这项工作。形容词great 后接名词，patience表示“耐心”，契合修复工作复杂、需细心的语境。 9．句意：对许多年轻游客而言，这次旅行就像游历回古代中国。介词like后接动名词，traveling与back to搭配表“游历到……”，符合旅行体验的语境。 10．句意：秦始皇去世四年后，秦朝灭亡。名词所有格emperor’s后接名词，death表示“死亡”，符合“皇帝去世后朝代终结”的历史逻辑。 阅读短文，从方框内选出正确的词并用其适当形式填空，使短文通顺、意思完整。将所填答案填写在题后相应题号的横线上。 happen,   valuable,   read,   but,   excited,   purpose,   position,   cover,   relationship,   product As one of the many oasis (绿洲) states in ancient China’s Western areas, part of today’s Xinjiang, Loulan used to be a beautiful and important place during the Han Dynasty. But then it disappeared from history, and its cities were 1 by endless sand. In the early 1900s, a Swedish person discovered Loulan by chance in the Taklimakan Desert. This discovery made people around the world 2 to learn more about Loulan. Loulan sat at the 3 where the ancient Silk Road’s southern and northern routes (路线) met. It used to be a busy place where people from the East and the West met to trade 4 and share ideas. Beautiful cloths found here show the close 5 between the central andWestern areas of ancient China. “Everything here is full of history and culture. It’s so 6 ,” says 19-year-old AdiljanJilir, the youngest of the rangers (巡护员) whose 7 is to protect the Loulan Ruins (遗迹). Adiljan and his teammates watch over the Loulan Ruins every day. They face not only uninvited visitors, 8 also terrible weather and the feeling of being very lonely. Strong winds and sandstorms 9 a lot. In summer, the surface temperature can reach 70°C． Ma Zhuang, another ranger, says he knew little about Loulan before taking the job. But after 10 a lot of history books, he fell in love with it. He wants to protect it with all his heart. 【答案】 1．covered 2．excited 3．position 4．products 5．relationship 6．valuable 7．purpose 8．but 9．happen 10．reading 【导语】本文主要介绍了古都楼兰。 1．句意：然后它就从历史上消失了，它的城市被无尽的沙土所覆盖。根据“by endless sand”知，此处指城市被沙土覆盖，结合备选词，cover“覆盖”，符合语境，此处是被动语态，动词用过去分词。故填covered。 2．句意：这一发现使得世界各地的人们都很兴奋，渴望了解更多关于它的信息。根据“learn more about Loulan”可知，此处指人们对于楼兰的态度，结合备选词，excited“兴奋的”，符合语境，此处作宾语补足语。故填excited。 3．句意：楼兰坐落在古代丝绸之路南北路线交汇的地方。根据“where the ancient Silk Road’s southern and northern routes (路 线) met”可知，此处指楼兰的位置，结合备选词，position“位置”，符合语境。故填position。 4．句意：它曾经是一个繁忙的地方，来自东方和西方的人们在这里交流商品、分享想法。根据“trade”可知，此处指交易商品，结合备选词，product“产品，商品”，符合语境，可数名词，空前没有限定词，需要使用复数。故填products。 5．句意：在这里发现的美丽布料展示了古代中国中部和西部地区之间的紧密联系。根据“between the central andWestern areas of ancient China.”可知，此处指古代中国中部和西部地区之间的联系，结合备选词，relationship“关系，联系”，符合语境。故填relationship。 6．句意：它是如此珍贵。根据“Everything here is full of history and culture.”可知，此处指楼兰充满了历史和文化，故应该是珍贵的，结合备选词，valuable“贵重的，珍贵的”，符合语境。故填valuable。 7．句意：19岁的AdiljanJilir说，他是这些巡护员中最年轻的一位，他们的目的就是保护楼兰遗址。根据“to protect the Loulan Ruins”可知，此处指保护楼兰遗址是巡护员们的目的，结合备选词，purpose“目的，目标”，符合语境。故填purpose。 8．句意：他们不仅要面对不速之客，还要应对恶劣的天气和极度孤独的感觉。根据“not only”可知，此处是固定搭配，not only…but also…“不但……而且……”。故填but。 9．句意：强风和沙尘暴经常发生。根据“terrible weather”可知，此处是描述恶劣天气，结合备选词，happen“发生”，符合语境，结合上文可知，此处用一般现在时，主语strong winds and sandstorms是复数，动词用原形。故填happen。 10．句意：但在阅读了大量历史书籍后，他爱上了它。根据“a lot of history books”可知，此处指阅读书籍，结合备选词，read“朗读，阅读”，符合语境，根据“after”可知，介词后加动名词作宾语。故填reading。 阅读下面短文，根据语篇内容，用方框中所给词的正确形式填空，使短文通顺、连贯。方框中有两个词为多余项。 set, old, find, important, lately, laugh, record, surprise, probable, seem, he, event Last February in the remains of an ancient palace in Xi’an, Chinese archeologists (考古学家) discovered several broken parts of a 2, 400-year-old flush toilet (抽水马桶). They believe it might be the world’s 1 flush toilet. Although it’s nearly impossible 2 the upper parts of it, what’s left is still in good shape. “It is the first and only flush toilet that has been unearthed (出土) in China,” said Liu Rui, a researcher. “Everybody on the research team was 3 when we found it, and then we all 4 .” Described by researchers as a “luxury (奢华的) object”, the toilet is thought to have been located inside the palace. The researchers believe this toilet was 5 for important people between the Warring States Period and the Han Dynasty and might have been used by Duke Xiao of Qin or 6 father, Duke Xian of Qin. Liu pointed out that maybe the toilet 7 indoors and connected to an outdoor pit (深坑). The servants would pour water into it every time the owner used the toilet. There are many historical 8 about toilets in ancient China and some ancient toilets have been unearthed. It shows that the ancient Chinese people already realized the 9 of hygiene (卫生). And surprisingly, it 10 that there is not too much difference between ancient toilets and the modern ones. 【答案】 1．oldest 2．to find 3．surprised 4．laughed 5．probably 6．his 7．was set 8．records 9．importance 10．seems 【导语】本文主要介绍了中国考古学家在西安古代宫殿遗址中发现了一件2400年前的抽水马桶。 1．句意：他们认为这可能是世界上最古老的抽水马桶。根据上文“Chinese archeologists (考古学家) discovered several broken parts of a 2, 400-year-old flush toilet (抽水马桶).”及备选词可知，考古学家认为这是最古老的抽水马桶，old“老的”，此处应用形容词最高级形式，故填oldest。 2．句意：虽然几乎不可能找到它的上半部分，但剩下的东西仍然完好无损。根据“Although it’s nearly impossible...the upper parts of it”及备选词可知，是指不可能找到抽水马桶的上半部分，find“找到”；it’s+形容词+to do sth.“做某事……”，应用动词不定式作真正的主语，故填to find。 3．句意：当我们发现它时，研究小组的每个人都很惊讶，然后我们都笑了。根据“when we found it”及备选词可知，找到时应是惊讶的，修饰人，应用形容词surprised“惊讶的”作表语，故填surprised。 4．句意：当我们发现它时，研究小组的每个人都很惊讶，然后我们都笑了。根据“and then we all...”及备选词可知，是指惊讶过后就笑了，laugh“笑”；根据“found”可知时态为一般过去时，动词应用过去式，故填laughed。 5．句意：研究人员认为，这个厕所可能是战国和汉代之间的重要人物使用的，可能是秦孝公或他的父亲秦献公使用过的。根据“might have been used”及备选词可知，此处表示猜测，副词probably“可能”符合语境，故填probably。 6．句意：研究人员认为，这个厕所可能是战国和汉代之间的重要人物使用的，可能是秦孝公或他的父亲秦献公使用过的。根据“Duke Xiao of Qin or...father, Duke Xian of Qin”及备选词可知，秦献公是秦孝公的父亲，he“他”，指代秦孝公，此处应用形容词性物主代词his修饰名词father，故填his。 7．句意：刘指出，也许厕所设置在室内，与室外的深坑相连。根据“the toilet...indoors”及备选词可知，是指厕所设在室内，set“设置”，与主语the toilet构成被动关系，时态为一般过去时，应用一般过去时的被动语态“was/were done”；主语是三单，be动词用was，故填was set。 8．句意：中国古代有许多关于厕所的历史记载，也出土了一些古代厕所。根据“There are many historical...about toilets in ancient China”及备选词可知，是指关于厕所的记载，record“记载”，many修饰可数名词复数，故填records。 9．句意：这表明中国古人已经意识到卫生的重要性。根据“Chinese people already realized the...of hygiene”及备选词可知，是指意识到了卫生的重要性，the importance of“……的重要性”，故填importance。 10．句意：令人惊讶的是，古代厕所和现代厕所之间似乎没有太大的区别。根据“it...that there is not too much difference”及备选词可知，是指似乎没有太大区别，seem“似乎”；根据“is”可知时态为一般现在时，主语是it，动词用三单形式，故填seems。 根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空，将单词填写在答题卡对应的横线上。每个单词只能用一次。 popular   for    when    role    price    share    beauty   matter    know   language Silk is a thin and pretty fiber (纤维制品). Thousands of years ago in ancient China, people began making silk fiber into a soft fabric (织物). It was very 1 . However, silk could only be used in the palace because of its high 2 at first. Silk in China was not a secret. 3 ancient Chinese paid a visit to other countries, they usually carried gifts made of silk. The people in other countries started to use this unusual thing. It soon became widely 4 in the West. Silk business always encouraged businessmen to search 5 ways from Europe to the Far East. Later they came to be 6 as “the Silk Road”. At the same time, some people found sea routes (路线). The Silk Road played an important 7 in bringing different cultures and people from different countries into communication. To make successful deals, people had to learn the 8 and cultures of other countries first to make better communications. Through them, people could 9 knowledge about arts, science and technologies. No 10 in the past or at present, the Silk Road is of great help to the tour of the countries along the route. 【答案】 1．beautiful 2．price 3．When 4．popular 5．for 6．known 7．role 8．languages 9．share 10．matter 【导语】本文讲述了丝绸的起源、传播及其对东西方文化交流和贸易发展的重要作用，特别是丝绸之路在促进不同文化间沟通与合作方面发挥了关键作用。 1．句意：它非常漂亮。根据“...people began making silk fiber into a soft fabric (织物). It was very...”和备选词汇可知，it指代“soft fabric”，此处指柔软的织物很漂亮，应用beauty的形容词beautiful“漂亮的”，作表语。故填beautiful。 2．句意：然而，丝绸最初只能在宫殿里使用，因为它的价格很高。根据“silk could only be used in the palace”和备选词汇可知，因价格昂贵才会仅供贵族使用，名词price“价格”符合题意。故填price。 3．句意：当古代中国人访问其他国家时，他们通常带着丝绸制成的礼物。根据“...ancient Chinese paid a visit to other countries, they usually carried gifts made of silk.”可知，此处指当古人访问其他国家时，它们带着丝绸制成的礼物，应用when“当……时”引导时间状语从句，句首首字母应大写。故填When。 4．句意：它很快在西方广受欢迎。根据“It soon became widely...in the West.”和备选词汇可知，此处指丝绸在西方受欢迎，应用形容词popular“受欢迎的”，作表语。故填popular。 5．句意：丝绸贸易一直鼓励商人寻找从欧洲到远东的途径。根据“search...ways”可知，此处指搜寻路线，应用短语search for“搜寻”。故填for。 6．句意：后来它们被称为“丝绸之路”。根据“...ways from Europe to the Far East. Later they came to be...as ‘the Silk Road’.”可知，此处指寻找到的这些线路被称为“丝绸之路”，be known as“被称为”。故填known。 7．句意：丝绸之路在促进不同文化和不同国家人民交流方面发挥了重要作用。play an important role in“在……中起重要作用”，为固定搭配。故填role。 8．句意：为了达成成功的交易，人们必须首先学习其他国家的语言和文化，以便更好地沟通。根据“learn the...and cultures of other countries first to make better communications.”和备选词汇可知，为了沟通需要学习语言，可数名词language“语言”符合题意，此处应用复数形式与“cultures”并列。故填languages。 9．句意：通过它们，人们可以分享有关艺术、科学和技术的知识。情态动词could后接动词原形；根据“people could...knowledge about arts, science and technologies.”和备选词汇可知，人们可以分享知识，动词share“分享”符合题意。故填share。 10．句意：无论是过去还是现在，丝绸之路对沿线国家的旅游都有很大的帮助。no matter“不论”，表示“不论过去还是现在”。故填matter。 请从方框内选择适当的词，并根据需要用其正确形式填空，使文章语法正确、完整连贯，并将答案写在答题卡对应题目的答题位置上。注意: 每空一词，每词仅用一次，有两词为多余项。 activity　all　because　history　however　keep　over　ring　special　where　though　what Macao is a beautiful city on the southern coast of China. Its 1 can date back to the Warring States Period. 2 ，it was ruled by Portuguese (葡萄牙人) for over 400 years. As early as seventy­-six years ago, the five-star red flag was already flying high 3 the land of Macao. Du Nam was the headteacher of Hou Kong Middle School in Macao. On October 1, 1949, Du Nam organized 4 the teachers and students in the school to raise the first Chinese national flag in Macao. The flag was raised when the national anthem (国歌) 5 out on the radio. At that time, Macao had not yet come back to the motherland. Du Nam never gave up 6 she faced a lot of difficulties. She said, “I’m a Chinese. I know 7 I should do. Since the People’s Republic of China has been founded, our national flag must be raised.” December 20, 1999 was a(n) 8 day. On that day Macao returned to the motherland. At that time, Du Nam was 87 years old. She was invited to raise Chinese national flag in Hou Kong Middle School. This school has 9 flag-raising for nearly seventy­-six years. Flag ­raising is one of the school’s important 10 . It educates the students to love our country forever. 【答案】 1．history 2．However 3．over 4．all 5．rang 6．though 7．what 8．special 9．kept 10．activities 【导语】本文介绍了澳门的历史，讲述早在76年前五星红旗就在澳门土地上飘扬，杜南组织师生在澳门升起第一面中国国旗，尽管面临困难仍未放弃，1999年澳门回归，学校持续近76年的升旗仪式是重要活动，教育学生爱国。 1．句意：澳门是中国南部海岸的一座美丽城市。它的历史可以追溯到战国时期。根据“can date back to the Warring States Period.”可知，这里表示澳门的历史。故填history。 2．句意：然而，它被葡萄牙人统治了400多年。根据“it was ruled by Portuguese (葡萄牙人) for over 400 years.”可知，前文说澳门历史悠久，后文说被葡萄牙统治400多年，存在转折关系，However表示“然而” ，符合语境，故填However。 3．句意：早在七十六年前，五星红旗就已经在澳门土地上空高高飘扬。根据“the five-star red flag was already flying high”可知，这里表示红旗在空中飘扬。over有“在……上方”的意思。故填over。 4．句意：1949年10月1日，杜南组织了学校里的所有师生在澳门升起第一面中国国旗。根据“the teachers and students in the school to raise the first Chinese national flag in Macao.”可知，这里表示组织了所有师生，all表示“全部”。故填all。 5．句意：当国歌在广播中响起时，国旗升起了。根据“The flag was raised when the national anthem (国歌)”可知，这里表示国歌响起。ring out是固定短语，意为“响起”，全文时态为过去的时态，动词需用过去式。故填rang。 6．句意：杜南从未放弃，尽管她面临许多困难。根据“Du Nam never gave up”和“she faced a lot of difficulties.”可知，二者是让步关系。though表示“尽管”，引导让步状语从句，故填though。 7．句意：她说：“我是一个中国人。我知道我应该做什么。”。根据“know”可知，know后缺宾语，what引导宾语从句，在从句中作do的宾语。故填what。 8．句意：1999年12月20日是一个特殊的日子。根据“day”可知，空格处需用形容词修饰。special是形容词，表示“特殊的”，符合语境；故填special。 9．句意：这所学校已经持续举行升旗仪式近七十六年了。根据“has”可知，“has+过去分词”构成现在完成时，keep有“持续”的意思，has kept flag-raising表示“持续举行升旗仪式”，故填kept。 10．句意：升旗仪式是学校重要的活动之一。根据“Flag-raising is one of the school’s important”可知，此处是指重要的活动；“one of+可数名词复数”表示“……之一”，activity的复数形式是activities，故填activities。 根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。将单词填写在答题卡对应的横线上。每个单词只能用一次。 and   small   food   new   kind   have   from   one   them   be “The movie The Longest Day in Chang’an《长安三万里》 made me dream back to Chang’an.” a girl said. Let’s 1 a dream today. I’m 2 the Tang Dynasty’s capital Chang’an. People in your time call the city Xi’an. The Silk Road starts from Chang’an. That makes it become 3 of the most popular cities in the world. There are over 1,000,000 people in the city, and 200,000 of them are foreigners (外国人). Most of 4 come a long way along the Silk Road. They bring their goods (商品), arts 5 food, and they become an important part of our everyday life! Foreign clothes 6 popular in Chang’an. They always have close-fitting sleeves (窄袖) and turn-down collars (翻领), and they are 7 than ours. foreigners wear this kind of clothes. People in Chang’an like to wear them, too. This is hubing, a kind of popular 8 in the city. It’s a kind of cake with sesames (芝麻) on it. Travelers on the Silk Road like to eat it and bring it to Chang’an. Many 9 fruits and vegetables are brought to China, they come a long way along the Silk Road to our table. At the same time, many 10 of things different from China were also brought here. So amazing, right? 【答案】 1．have 2．from 3．one 4．them 5．and 6．are 7．smaller 8．food 9．new 10．kinds 【导语】本文主要介绍了唐朝长安的情况。 1．句意：让我们今天做一个梦吧。根据“a dream”可知，是have a dream“做梦”，let’s do sth“让我们做某事”。故填have。 2．句意：我来自唐朝的首都长安。be from“来自”。故填from。 3．句意：这使得它成为世界上最受欢迎的城市之一。one of the+形容词最高级+名词复数“最……的……之一”。故填one。 4．句意：他们中的大多数人沿着丝绸之路走了很长的路。此处指代前文的“foreigners”，且of后跟代词宾格形式，用them“他们”指代。故填them。 5．句意：他们带来了他们的商品，艺术和食物，它们成为我们日常生活的重要组成部分！根据“goods (商品), arts ... food”可知，三者是并列关系，用and连接。故填and。 6．句意：外国服装在长安很受欢迎。be popular in“在……中受欢迎”，时态为一般现在时，主语是复数，be用are。故填are。 7．句意：它们总是有贴身的窄袖和翻领，而且它们比我们的小。根据“They always have close-fitting sleeves (窄袖) and turn-down collars”可知，外国的衣服比我们的小，由“than”可知，用比较级smaller“更小的”。故填smaller。 8．句意：这是胡饼，一种在城里很受欢迎的食物。根据“It’s a kind of cake from sesames (芝麻) on it.”可知，这是一种食物，food“食物”符合语境。故填food。 9．句意：许多新的水果和蔬菜被带到中国，它们沿着丝绸之路长途跋涉来到我们的餐桌上。根据“fruits and vegetables”及备选词可知，是指新的水果和蔬菜，形容词new“新的”，作定语。故填new。 10．句意：与此同时，许多与中国不同的事物也被带到了这里。many kinds of“许多种”。故填kinds。 ◇考点 02 重难语篇提升练 请先阅读下面短文，掌握其大意，然后用方框中所给词的适当形式填空，每个词限用一次。 show  smooth  because  sick  even  early  again  connect  medical  historian  theory Recently, Chinese experts made an amazing discovery in Jiangxi Province! In the tomb of the Marquis of Haihun (海昏侯墓), they found the 1 steel acupuncture needles (针灸针) in China. These tiny 2 instruments are over 2,000 years old and very thin, only 0.3 to 0.5mm wide. Acupuncture is an important part of Traditional Chinese Medicine (TCM). Ancient Chinese doctors developed a special 3 . They believed that good health depends on the 4 movement of energy (known as qi) inside the body. If this energy does not move properly, people will get 5 . Acupuncturists put very thin needles into special points on the body. There are hundreds of such points, and each point is 6 to different parts of the body. Putting the needles into these points helps the energy move freely 7 and this helps the body get better by itself. Acupuncture is used to help with many health problems, such as body pains, headaches, stress, and 8 common colds. Long ago, acupuncture needles were made of stone, animal bones, or bronze (青铜). Later, steel needles were developed 9 they were stronger, thinner, and could be used for a longer time. The discovery of these ancient steel needles is very important. It 10 the great wisdom (智慧) and skill of ancient Chinese doctors. For 11 , this discovery also helps them learn more about the long history of acupuncture—a tradition still widely used today, even in many other countries. 【答案】 1．earliest 2．medical 3．theory 4．smooth 5．sick 6．connected 7．again 8．even 9．because 10．shows 11．historians 【导语】本文主要讲述了中国专家在江西海昏侯墓有了惊人发现——中国最早的钢制针灸针，还介绍了针灸的相关理论、作用以及针的材质演变等内容。 1．句意：在海昏侯墓中，他们发现了中国最早的钢制针灸针。根据“in China”可知，此处是在中国范围内比较，应用形容词最高级，表示最早的，因此用early的最高级earliest。故填earliest。 2．句意：这些微小的医疗器具已有2000多年历史，非常细，宽度仅0.3到0.5毫米。根据“These tiny…instruments”可知，是医疗器具，因此用medical“医疗的”。故填medical。 3．句意：古代中国医生发展出了一种特殊的理论。根据“Ancient Chinese doctors developed a special…”结合后文他们认为健康取决于体内能量的流动可知，这是一种理论，因此用名词单数theory“理论”。故填theory。 4．句意：他们认为健康取决于体内能量（被称为气）的顺畅流动。根据“movement of energy”可知，是顺畅的流动，因此用smooth“顺畅的”。故填smooth。 5．句意：如果这种能量不能正常流动，人们就会生病。根据“If this energy does not move properly”可知，如果能量不能正常流动，人就会生病，get sick“生病”，因此用sick。故填sick。 6．句意：有数百个这样的穴位，每个穴位都与身体的不同部位相连。根据“each point is…to different parts of the body”可知，此处是固定搭配be connected to“与……相连”，因此用connected。故填connected。 7．句意：把针扎进这些穴位有助于能量再次自由流动，这有助于身体自我恢复。根据“helps the energy move freely…and this helps the body get better by itself”可知，此处表示再次自由流动，因此用again“再次”。故填again。 8．句意：针灸被用来帮助解决许多健康问题，如身体疼痛、头痛、压力，甚至普通感冒。根据“Acupuncture is used to help with many health problems”可知，此处表示递进，甚至普通感冒，因此用even“甚至”。故填even。 9．句意：后来，钢针被开发出来，因为它们更坚固、更细，而且可以使用更长时间。根据“steel needles were developed…they were stronger, thinner, and could be used for a longer time”可知，前后是因果关系，因此用because“因为”。故填because。 10．句意：它展示了古代中国医生的伟大智慧和技能。根据“It…the great wisdom and skill of ancient Chinese doctors”可知，展示了智慧和技能，主语是It，谓语动词用第三人称单数形式，因此用shows“展示”。故填shows。 11．句意：对于历史学家来说，这一发现也有助于他们更多地了解针灸的悠久历史——这一传统至今仍被广泛使用，甚至在许多其他国家也是如此。根据“For…, this discovery also helps them learn more about the long history of acupuncture”可知，此处表示对于历史学家来说，用名词复数形式，因此用historians“历史学家”。故填historians。 阅读下面的短文，根据短文内容，从下面方框内所给11个词中选择10个意义相符的词，必要时进行词形变化，填入空白处，每空一词。 help, it, with, lucky, one, piece, large, if, but, for, when In the summer of 1996, some strange-looking fossilized bones (骨骼化石) were dug up by a man in a dried-up lake. He was a farmer in the eastern part of China, who wondered: Could these be the remains (遗迹) of an ancient dragon? Not quite. Finally the study showed us that the bones actually belonged to a meat-eating dinosaur (恐龙), and 1 name was Sinosauropteryx prima (中华龙鸟). It was 2 than the size of a common chicken which lived about 120 million years ago. It was the 3 time to find fossils of dinosaurs in Liaoning, and it was the earliest one with feathers (羽毛). So, scientists said that Sinosauropteryx prima might have had tiny feathers, which is similar to the chicken. They have something in common! It may sound crazy 4 in fact not. Most scientists think today’s birds and dinosaurs are relatives. However, not everyone believes it. Many scientists wonder 5 some dinosaurs had feathers. Some bird scientists suggest that the feather-like structures (结构) may be 6 of scales (鳞片). Whatever they are, they are not the right size and shape 7 flying. It’s not easy to prove this because feathers are so weak that they usually rot (腐烂) away without a trace (踪迹). 8 , the fossils showed a lot of details (细节). For the study of the relationship between birds and dinosaurs, these details are very 9 . Yet still nobody knows 10 and why feathers appeared on the earth. Scientists hope to solve the puzzle (谜题) by studying the area where the fossils were found. “These beds date to a time when flowering plants and birds appeared,” says a professor. “The discovery of this area is just as important as going to Mars.” 【答案】 1．its 2．larger 3．first 4．but 5．if 6．pieces 7．for 8．Luckily 9．helpful 10．when 【导语】本文讲述了中华龙鸟化石的发现以及它对相关研究的重要意义。 1．句意：最后，这项研究表明，这些骨头实际上属于一种食肉恐龙，它的名字叫中华龙鸟。空处作定语，指这种食肉恐龙的名字，用it的形容词性物主代词形式its“它的”。故填its。 2．句意：它比生活在大约1.2亿年前的普通鸡要大。空处作表语，比较恐龙与鸡的大小，large“大的”符合语境，than前用比较级。故填larger。 3．句意：这是辽宁第一次发现恐龙化石，也是最早发现的有羽毛的恐龙化石。根据“the … time to find fossils of dinosaurs in Liaoning”和备选词汇可知，这是第一次在辽宁发现恐龙化石，填one的序数词形式first。故填first。 4．句意：这听起来可能很疯狂，但事实并非如此。句子前后是转折关系，用but“但是”连接。故填but。 5．句意：许多科学家想知道某些恐龙是否有羽毛。空处引导宾语从句，结合备选词汇，if“是否”符合语境，科学家不确定恐龙是否有羽毛。故填if。 6．句意：一些鸟类科学家认为，这些羽毛状结构可能是鳞片碎片。根据“… of scales”可知，修饰鳞片应用piece“一片”，pieces of...“许多片的……”。故填pieces。 7．句意：不管它们是什么，它们的大小和形状都不适合飞行。根据“they are not the right size and shape … flying”可知，这些羽毛状结构不是用来飞行的，介词for可表用途。故填for。 8．句意：幸运的是，这些化石显示了许多细节。根据“the fossils showed a lot of details”可知，新发现的化石很有研究价值，这是一件幸运的事，空处修饰整个句子，用lucky的副词形式。故填Luckily。 9．句意：对于研究鸟类和恐龙之间的关系，这些细节非常有帮助。根据“the fossils showed a lot of details”可知，新发现对研究很有帮助，空处用help的形容词helpful作表语。故填helpful。 10．句意：然而，仍然没有人知道这些羽毛何时以及为什么出现在地球上。根据“… and why feathers appeared on the earth.”可知，空处应填连词引导宾语从句，when符合语境，表示没人知道羽毛是何时出现的。故填when。 学科网（北京）股份有限公司 $