Unit 5 Power of Ideas 单词词形、词性转换练习（单句+语篇）2026-2027学年人教版九年级英语上册

Unit 5 Power of Ideas 单词词形、词性转换练习 【单句+语篇共90小题，限时60分钟】 一、用所给单词的适当形式填空 1. The telephone was a great ________ (invent). 【答案】invention 【详解】句意：电话是一项伟大的发明。括号给的invent是动词“发明”；空格前有a great，需要名词作表语；invent的名词形式是invention，意为“发明”。故填invention。 2. The cat can open the door by ________ (it). 【答案】itself 【详解】句意：这只猫能自己打开门。括号给的it是代词“它”；by oneself是固定搭配，意为“独自；自己”；it的反身代词是itself。故填itself。 3. There is something wrong with my ________ (print). 【答案】printer 【详解】句意：我的打印机出毛病了。括号给的print是动词“打印”；my后接名词，表示“打印机”；print的名词形式是printer。故填printer。 4. These ________ (produce) are made in China. 【答案】products 【详解】句意：这些产品是中国制造的。括号给的produce是动词“生产”；These后接可数名词复数，表示“产品”；produce的名词形式是product，复数是products。故填products。 5. You are ________ (suppose) to wear a seat belt in the car. 【答案】supposed 【详解】句意：在车里你应该系安全带。括号给的suppose是动词“认为”；be supposed to是固定搭配，意为“应该”；空格处用过去分词supposed作表语。故填supposed。 6. There was a ________ (rapidly) change in his attitude. 【答案】rapid 【详解】句意：他的态度发生了迅速的变化。括号给的rapidly是副词“迅速地”；空格在名词change前，需要形容词修饰名词；rapidly的形容词形式是rapid，意为“迅速的”。故填rapid。 7. The ________ (east) part of the country is rich. 【答案】eastern 【详解】句意：这个国家的东部地区很富有。括号给的east是名词“东方”；空格在名词part前，需要形容词修饰；east的形容词形式是eastern，意为“东部的”。故填eastern。 8. Water ________ (freeze) at zero degrees Celsius. 【答案】freezes 【详解】句意：水在零摄氏度结冰。括号给的freeze是动词“冰冻”；主语Water是不可数名词，视为单数；陈述自然事实用一般现在时，谓语用freezes。故填freezes。 9. Many ________ (tourism) visit Beijing every year. 【答案】tourists 【详解】句意：每年许多游客参观北京。括号给的tourism是名词“旅游业”；Many后接可数名词复数，表示“游客”；tourism的相关名词是tourist，复数是tourists。故填tourists。 10. The government is facing ________ (economy) problems. 【答案】economic 【详解】句意：政府正面临经济问题。括号给的economy是名词“经济”；空格在名词problems前，需要形容词修饰；economy的形容词形式是economic，意为“经济的”。故填economic。 11. We must face the ________ (real). 【答案】reality 【详解】句意：我们必须面对现实。括号给的real是形容词“真的”；the后需要名词作宾语，表示“现实”；real的名词形式是reality。故填reality。 12. You are ________ (responsibility) for your own choices. 【答案】responsible 【详解】句意：你要为自己的选择负责。括号给的responsibility是名词“责任”；be后接形容词作表语，表示“有责任的”；responsibility的形容词形式是responsible。故填responsible。 13. The city has ________ (rapid) changed in recent years. 【答案】rapidly 【详解】句意：近年来这座城市迅速发生了变化。括号给的rapid是形容词“迅速的”；空格修饰动词changed，需要副词；rapid的副词形式是rapidly，意为“迅速地”。故填rapidly。 14. This coat is too ________ (expense). 【答案】expensive 【详解】句意：这件外套太贵了。括号给的expense是名词“费用”；is后接形容词作表语，表示“昂贵的”；expense的形容词形式是expensive。故填expensive。 15. The police ________ (office) helped the lost child. 【答案】officer 【详解】句意：那位警官帮助了走失的孩子。括号给的office是名词“办公室”；The police后接可数名词单数，表示“警官”；office的相关名词形式是officer。故填officer。 16. I am ________ (certain) that he will come. 【答案】certain 【详解】句意：我确信他会来。括号给的certain是形容词“确定的”；be后接形容词作表语，be certain that意为“确信”；certain形式不变。故填certain。 17. The film is not ________ (suit) for children. 【答案】suitable 【详解】句意：这部电影不适合儿童。括号给的suit是动词“适合”；is后接形容词作表语，be suitable for意为“适合”；suit的形容词形式是suitable。故填suitable。 18. I feel ________ (certain) about the answer, so I need to check it again. 【答案】uncertain 【详解】句意：我对答案感到不确定，所以我需要再检查一遍。括号给的certain是形容词“确定的”；feel后接形容词作表语，so need to check说明“不确定”；certain加前缀un-变为uncertain。故填uncertain。 19. These shoes are ________ (cheap) than those ones. 【答案】cheaper 【详解】句意：这些鞋比那些鞋便宜。括号给的cheap是形容词“便宜的”；than表明要用比较级；cheap的比较级是cheaper。故填cheaper。 20. The artist ________ (creation) a beautiful painting last year. 【答案】created 【详解】句意：那位艺术家去年创作了一幅美丽的画。括号给的creation是名词“创造；作品”；句子需要谓语动词，last year表明用一般过去时；creation的动词形式是create，过去式为created。故填created。 21. My sister was ________ (birth) in 2010. 【答案】born 【详解】句意：我姐姐出生于2010年。括号给的birth是名词“诞生”；be born是固定搭配，意为“出生”；birth的形容词形式是born。故填born。 22. There are many big ________ (company) in this city. 【答案】companies 【详解】句意：这座城市里有许多大公司。括号给的company是名词“公司”；many后接可数名词复数；company以辅音字母加y结尾，变复数时把y变i再加es，即companies。故填companies。 23. The ________ (product) of paper has increased a lot. 【答案】production 【详解】句意：纸的生产已经大大增加。括号给的product是名词“产品”；The后接名词作主语，表示“生产”；product的相关名词形式是production，意为“生产；制作”。故填production。 24. The weather changed ________ (gradual) over the years. 【答案】gradually 【详解】句意：多年来天气逐渐变化。括号给的gradual是形容词“逐渐的”；空格修饰动词changed，需要副词；gradual的副词形式是gradually，意为“逐渐地”。故填gradually。 25. English is ________ (wide) used around the world. 【答案】widely 【详解】句意：英语在全世界被广泛使用。括号给的wide是形容词“宽的；广泛的”；空格修饰动词used，需要副词；wide的副词形式是widely，意为“广泛地”。故填widely。 26. Thomas Edison was a famous ________ (invent). 【答案】inventor 【详解】句意：托马斯·爱迪生是一位著名的发明家。括号给的invent是动词“发明”；a famous后接可数名词单数，表示人“发明家”；invent的名词形式是inventor。故填inventor。 27. It is my ________ (responsible) to look after my little brother. 【答案】responsibility 【详解】句意：照顾我弟弟是我的责任。括号给的responsible是形容词“有责任的”；my后接名词，表示“责任”；responsible的名词形式是responsibility。故填responsibility。 28．Last month, the whole class ________ (divide) into six groups to do different tasks in order to finish the work on time. 【答案】was divided 【详解】句意：上个月，全班被分成六个小组，去做不同的任务，以便按时完成这项工作。主语the whole class和divide是被动关系；时间状语last month表示过去，要用一般过去时的被动语态“was/were + 过去分词”形式；the whole class视作单数，be动词用was，divide的过去分词是divided。 29．All students ________ (require) to wear school uniforms on weekdays. 【答案】are required 【详解】句意：所有学生在工作日都被要求穿校服。主语“All students”与“require”之间为被动关系，描述一般规定应用一般现在时的被动语态，故填are required。 30．It is impossible ________ success without hard work. (gain) 【答案】to gain 【详解】句意：不努力就不可能获得成功。“gain”是动词，意为“获得”。固定句型“It is+形容词+to do sth.”，意思是“做某事是……的”，这个句型里it是形式主语，真正的主语是后面的动词不定式结构，所以此处要把gain变为不定式形式to gain。 31．The ancient tea trees ________ by local people long ago. (protect) 【答案】were protected 【详解】句意：这些古茶树很久以前就被当地人保护起来了。“long ago”提示本句为一般过去时；主语“The ancient tea trees”和protect是被动关系，要用一般过去时的被动语态，其结构为“was/were + 过去分词”。主语是复数，be动词用were，protect的过去分词是protected。 32．Now, ________ of students have developed the habit of daily reading, just like me. (hundred) 【答案】hundreds 【详解】句意：现在，成百上千的学生已经养成了每日阅读的习惯，就像我一样。hundred前无具体数字且后面搭配of时，要用复数形式hundreds。hundreds of 是固定搭配，表示“成百上千的”。故填hundreds。 33．Many Chinese sayings ________ (pass) on to younger people after they are shared by the old in our daily life. 【答案】are passed 【详解】句意：许多中国谚语在日常生活中由长辈分享后，便传承给了年轻人。谚语是“被传递”的，再根据句中的时间状语“in our daily life”，可知句子描述的是常规性的客观情况，要用一般现在时的被动语态，结构为“am/is/are+动词过去分词”，主语是复数“sayings”，be动词用are，pass的过去分词是passed，所以填are passed。 34．In 2016, the great “China Sky Eye” was finally ________ (complete). 【答案】completed 【详解】句意：2016年，伟大的“中国天眼”终于竣工。主语“the great ‘China Sky Eye’”和谓语动词“complete”是被动关系，空格前“was”后面接动词过去分词。应填completed。 35．Using too many non-recyclable materials can ________ (lead to) serious environmental problems. 【答案】lead to 【详解】句意：使用太多不可回收材料会导致严重的环境问题。句中情态动词can后需要接动词原形，lead to为固定短语，意为“导致”，因此填lead to。 二、语法填空 阅读下列短文，根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的正确形式。 01 What if a boat could carry people and clean water at the same time? In South Korea, a company called Ecopeace has 36 (create) the Healing Boat to do just that. The company was 37 (found) in 2012. The Healing Boat is driven by energy from the sun, so it can travel without using oil. As it moves across lakes, it also helps clean the water by filtering (滤) it. The Healing Boat can carry up to eight 38 (passenger). According to Ecopeace, about 100 tons of water can be cleaned by it every day. With its help, waste and 39 (harm) green algae (水藻) are cleared from the water. 40 this way, fish and other animals can be protected, and clean water can be enjoyed by people. In the day, 41 boat gives visitors short tours of local freshwater areas. People can learn about the waterways 42 see several landmarks during the 30-minute ride. At night, the boat is used for fun activities such as food truck tours and fireworks shows. 3D videos about underwater ecosystems are also offered to visitors and help 43 (they) learn more about how the boat itself protects nature. The Healing Boat 44 (real) helps make water protection more interesting for the public. Besides, Ecopeace hopes 45 (cooperate) with other organizations in the future to play a greater role in protecting water resources. 【答案】36．created 37．founded 38．passengers 39．harmful 40．In 41．the 42．and 43．them 44．really 45．to cooperate 【导语】本文介绍韩国一家公司研发的“治愈之船”，它依靠太阳能运行，既能载人游览，又可以净化水体，助力水资源保护。 【详解】36．句意：在韩国，一家名叫Ecopeace的公司研发出了“治愈之船”来实现这一点。该处需一个动词过去分词，在句中和has共同构成现在完成时，create的过去分词是created。 37．句意：这家公司成立于2012年。该处需一个动词过去分词；主语The company与动词found之间是被动关系，且时间状语in 2012表明是一般过去时，被动语态结构为“was+过去分词”。此处found意为“建立”，其过去分词为founded。 38．句意：这艘治愈之船最多可以搭载八名乘客。数词eight后接可数名词复数，passenger的复数形式为passengers。 39．句意：在它的帮助下，废弃物和有害水藻从水中被清理掉。该处需一个形容词，在句中作定语修饰名词green algae；harm的形容词形式为harmful，表示“有害的”。 40．句意：用这种方式，鱼类和其他动物可以得到保护，人们也能享用干净的水。in this way是固定短语，表示“用这种方式”，符合语境，句首首字母大写。故填In。 41．句意：白天，这艘船带领游客短途游览当地淡水区域。该处需一个定冠词，在句中修饰名词boat；此处特指上文提到的The Healing Boat，用定冠词the。 42．句意：人们可以了解水道，并且在30分钟的航行中观赏几处地标。该处需一个并列连词，在句中连接两个并列的谓语动词；learn about和see是并列的谓语动词，表示顺承关系，应用连词and连接。 43．句意：3D视频也提供给游客，帮助他们更多地了解船本身如何保护自然。空处位于动词help之后作宾语，应用人称代词的宾格形式，故填them。 44．句意：这艘治愈之船确实让大众对水环境保护更感兴趣。空处修饰动词helps，应用副词形式，real的副词形式为really。 45．句意：此外，Ecopeace希望未来和其他机构合作，在水资源保护方面发挥更大作用。固定搭配“hope to do sth.”表示“希望做某事”。故填to cooperate。 02 Humans are full of great ideas, and some of them have changed the world completely. The telephone 46 (invent) by Alexander Bell in 1876. Now people all over the world 47 (connect) to each other through phones and the Internet. The word “robot” 48 (introduce) for the first time in a play in 1920. Today, robots 49 (use) to do many dangerous jobs in factories. Scientists say that the world’s oldest wheel 50 (find) in Eastern Europe. Just 51 (suppose) there were no wheels — our life would be very different. Great inventions were not made in one day. They 52 (develop) little by little by hard-working people, and science and technology 53 (make) our life better every day. More and more people have 54 (gain) a lot from these great ideas. Maybe your idea will be the next great 55 (invent)! 【答案】46．was invented 47．are connected 48．was introduced 49．are used 50．was found 51．suppose 52．were developed 53．make 54．gained 55．invention 【导语】本文介绍人类历史上的伟大发明（如电话、机器人、车轮等），强调伟大的发明是劳动者逐步发展而来的。 【详解】46．句意：电话是由亚历山大·贝尔在1876年发明的。主语“The telephone”与动词“invent”之间是被动关系，时间状语“in 1876”是过去时的标志，需用一般过去时的被动语态，主语为单数，be动词用was，invent的过去分词为invented。 47．句意：现在全世界的人们通过电话和互联网相互联系。主语“people”与动词“connect”之间是被动关系，时间状语“Now”表示当前状态，需用一般现在时的被动语态，主语为复数，be动词用are，connect的过去分词为connected。 48．句意：“机器人”一词在1920年的一部戏剧中首次被引入。主语“The word ‘robot’”与动词“introduce”之间是被动关系，时间状语“in 1920”是过去时的标志，需用一般过去时的被动语态，主语为单数，be动词用was，introduce的过去分词为introduced。 49．句意：今天，机器人在工厂里被用来做许多危险的工作。主语“robots”与动词“use”之间是被动关系，时间状语“Today”表示当前情况，需用一般现在时的被动语态，主语为复数，be动词用are，use的过去分词为used。 50．句意：科学家说世界上最古老的车轮是在东欧发现的。主语“the world’s oldest wheel”与动词“find”之间是被动关系，且句子叙述过去的发现，需用一般过去时的被动语态，主语为单数，be动词用was，find的过去分词为found。 51．句意：假设没有车轮——我们的生活将截然不同。空格处所在句为祈使句，需用动词原形开头，suppose意为“假设”。 52．句意：它们是勤劳的人们一点一点发展起来的……。主语“They”指代“Great inventions”，与动词“develop”之间是被动关系，且前文“were not made”是过去时，此处需用一般过去时的被动语态，主语为复数，be动词用were，develop的过去分词为developed。 53．句意：……科学技术每天都在让我们的生活变得更好。主语“science and technology”表示“科学技术”，两个名词并列作主语，视为复数含义，描述客观事实，用一般现在时，make用原形。 54．句意：越来越多的人从这些伟大的想法中获益良多。“have”后需接过去分词构成现在完成时，gain的过去分词是gained。 55．句意：也许你的想法将是下一个伟大的发明！空格前“the next great”后需接名词，invent的名词形式是invention，主语idea为单数形式，表语invention也用单数形式。 03 Albert Einstein once said, “I have no special talents. I am only passionately curious.” In fact, many great 56 (discover) and inventions would not have been possible without this quality. Curiosity often leads 57 new understanding. Benjamin Franklin, for example, was deeply curious about electricity. His experiments, widely known today, 58 (rapid) advanced early electrical science. Through his work, the lightning rod 59 (invent), protecting buildings from storms. Curiosity also drives people to create. During the Ming Dynasty, Wan Hu was so curious about flight that he attempted to build a “flying chair” made of kites and rockets. He was supposed 60 (reach) the sky, but the test ended tragically. Still, his courage 61 (it) inspired later generations to explore space more safely. Curiosity, however, is not just about bold attempts. It also carries a 62 (responsible) to question, learn, and build upon what is known. People have always wondered how the world works and 63 to understand it better. This drive is at the heart of scientific progress. As explorer Jacques Cousteau noted, a scientist is like someone “looking through a keyhole, 64 opening into nature.” It is curiosity, 65 (complete) focused and patiently applied, that continues to open doors to new worlds for all of us. 【答案】56．discoveries 57．to 58．rapidly 59．was invented 60．to reach 61．itself 62．responsibility 63．how 64．an 65．completely 【导语】本文围绕“好奇心”这一主题展开论述，引用爱因斯坦、富兰克林、万户、雅克·库斯托等人的事例和名言，说明好奇心是科学发现与发明的重要动力，它能推动人们探索未知、创造新事物，是科学进步的核心。 【详解】56．句意：事实上，如果没有这种品质，许多伟大的发现和发明都不可能实现。根据空前many可知，此处需填可数名词复数。括号内所给词为discover，其名词形式discovery的复数形式为discoveries。 57．句意：好奇心常常带来新的理解。lead to是固定搭配，意为“导致、带来”，故填to。 58．句意：他如今广为人知的实验，迅速推进了早期电学的发展。修饰动词advanced，需用副词形式。括号内所给词为rapid，其副词形式为rapidly。 59．句意：通过他的工作，避雷针被发明出来，保护建筑物免受风暴侵袭。主语the lightning rod与invent之间是被动关系，描述过去的事情，用一般过去时的被动语态，invent的过去分词是invented，故填was invented。 60．句意：他本应到达天空，但试验以悲剧告终。be supposed to do sth.是固定搭配，意为“本应该做某事”，reach的不定式是to reach。 61．句意：尽管如此，他的勇气激励了后人更安全地探索太空。此处用于强调“他的勇气本身”，作主语his courage的同位语，表示强调用it的反身代词itself，意为“本身、自身”，指他的勇气本身激励了后人。 62．句意：它还承载着一种质疑、学习并在已知基础上继续建设的责任。空前有不定冠词a修饰，需填名词单数。括号内所给词为responsible，其名词形式为responsibility。 63．句意：人们一直想知道世界是如何运作的，并试图更好地理解它。结合语境，这里表示“世界是如何运作的”，此处用how构成疑问词 + 不定式结构作宾语，与前面的how并列，构成“wondered how... and how...”，表示“想知道世界是如何运作的，以及如何更好地理解它”。故填how。 64．句意：正如探险家雅克·库斯托所说，科学家就像“透过钥匙孔观察、一个通往自然的大门”的人。 在这个语境中，科学家透过钥匙孔看到的是“一个通向大自然的开口”，泛指“一个开口”，需要用不定冠词表示泛指的数量“一个”。opening在此作名词，意为“开口”，以元音音素/əʊ/开头，用不定冠词an。 65．句意：正是好奇心，完全专注并耐心运用，继续为我们所有人打开通往新世界的大门。修饰形容词focused，需用副词形式。括号内所给词为complete，其副词形式为completely。 04 The compass (指南针) is one of the four great inventions of ancient China. It has another Chinese name, Sinan, which 66 (invent) during the Warring States period and is considered the first compass. It was used to find the 67 (direct) at first. 68 , people preferred to use it for fortune (命运) telling rather than navigation (航海) back then. Later on, this simple tool 69 (produce) great changes in how people travelled. In the 70 (eleven) century, the Northern Song Dynasty saw a great improvement. People created small needles (指针) with magnetized steel (磁性钢). One end of the needle points north, while 71 other points south. Then the 72 (early) magnetic compass was created. This invention turned long-distance sea voyages (航行) into 73 (real). People slowly realized that the compass could really change the world 74 (great). Over the years, people have been able 75 (explore) new sea routes that were once unreachable. 76 the compass, many European countries could not have made great progress in sea voyages. It was not until around the 13th century that the compass was introduced to Europe 77 China. 78 (it) arrival sped up the development of the European marine (海洋的) industry. Today, the compass is still 79 (wide) used in many fields. It is truly one of the most 80 (value) inventions in human history. 【答案】66．was invented 67．direction 68．However 69．produced 70．eleventh 71．the 72．earliest 73．reality 74．greatly 75．to explore 76．Without 77．from 78．Its 79．widely 80．valuable 【导语】本文主要介绍了指南针的起源、发展历程及其对世界航海事业的重要影响。 【详解】66．句意：它还有一个中文名字叫“司南”，它是在战国时期被发明的，被认为是最早的指南针。主语which指代Sinan，与invent之间为被动关系，时间状语“during the Warring States period”表过去，用一般过去时被动语态，结构为“was/were+过去分词”，主语为单数，be动词用was，invent的过去分词为invented。 67．句意：最初它被用来寻找方向。定冠词the后面需要接名词，direct是形容词，对应的名词形式direction表示“方向”，此处表示寻找方向。 68．句意：然而，当时人们更倾向于用它来占卜命运，而不是用于航海。前文提到指南针被用来寻找方向，后文说人们倾向于用它来占卜命运，构成转折，空后有逗号隔开，应使用副词However“然而”，句首首字母大写。 69．句意：后来，这个简单的工具给人们的出行方式带来了巨大的改变。句子描述过去发生的动作，时态用一般过去时，produce的过去式为produced。 70．句意：在11世纪，北宋见证了巨大的进步。表达“第几世纪”需要使用序数词，eleven的序数词形式是eleventh，the eleventh century表示“11世纪”。 71．句意：指针的一端指向北方，另一端指向南方。“one…the other…”为固定结构，表示“（两者中）一个……另一个……”，故填the。 72．句意：随后最早的磁指南针就被创造了出来。空前有定冠词the，此处表达“最早的磁指南针”，需要用形容词最高级，early的最高级形式是earliest。 73．句意：这项发明使得远洋航行成为现实。固定搭配turn sth. into reality表示“将某事变为现实”，real是形容词，需要变为名词reality。 74．句意：人们慢慢意识到，指南针真的可以极大地改变世界。此处修饰动词change，需要用副词，great的副词形式是greatly，表示“极大地”。 75．句意：多年以来，人们已经能够探索那些曾经无法抵达的新航线。固定搭配be able to do sth.表示“能够做某事”，故填to explore。 76． 句意：如果没有指南针，许多欧洲国家就不可能在航海方面取得巨大进步。此处表示“没有”指南针的假设，用介词Without，句首首字母大写。 77．句意：直到大约13世纪，指南针才从中国传入欧洲。introduce sth. to sp. from sp.表示“从某地将某物传入某地”，此处表示指南针从中国传入欧洲，故填介词from。 78． 句意：它的到来加快了欧洲海洋工业的发展。此处修饰名词arrival，需要用形容词性物主代词，it对应的物主代词是Its，句首首字母大写。 79． 句意：今天，指南针仍然在许多领域被广泛地使用。此处修饰动词used，需要用副词，wide的副词形式是widely，表示“广泛地”。 80．句意：它确实是人类历史上最有价值的发明之一。固定结构“one of the+形容词最高级+名词复数”，表示“最……的……之一”，value对应的形容词为valuable，空前已有the most，故填valuable。 05 Many of us use the zipper every day, but few know who invented it. The zipper is a great 81 (invent) that we often take for granted. It 82 (create) by Whitcomb Judson in 1893. At first, it 83 (call) the “clasp locker”. However, it wasn’t widely used at that time because it was not very 84 (rely). Later, a Swedish engineer named Gideon Sundback improved 85 design in 1913, making it much stronger and 86 (easy) to use. The new version worked well, and soon zippers began to appear on clothes, bags and many other 87 (product). Today, zippers are everywhere. Without them, our daily life 88 (be) much less convenient. From coats to suitcases, zippers play 89 important part in modern life. It is amazing 90 (think) how such a small thing can change the world so greatly. 【答案】81．invention 82．was created 83．was called 84．reliable 85．its 86．easier 87．products 88．would be 89．an 90．to think 【导语】本文主要介绍了拉链的发明历程。文章讲述了惠特科姆·贾德森在1893年发明了拉链，后经瑞典工程师吉迪恩·桑德巴克改进，使其变得更强壮、更易用，如今已广泛应用于我们的日常生活中。 【详解】81．句意：拉链是一个我们经常认为理所当然的伟大发明。空前有不定冠词“a”和形容词“great”修饰，此处需填invent的名词形式invention，意为“发明”。 82．句意：它是由惠特科姆·贾德森在1893年创造的。根据时间状语“in 1893”可知句子用一般过去时；主语“It”指代拉链，与动词create之间是被动关系，应用一般过去时的被动语态（was/were + 过去分词）。故填was created。 83．句意：起初，它被称为“扣锁”。根据时间状语“At first”及上下文语境可知句子用一般过去时；主语“it”与动词call之间是被动关系（它被叫作……），应用一般过去时的被动语态。故填was called。 84．句意：然而，当时它并没有被广泛使用，因为它不是非常可靠。空前有系动词“was”和程度副词“very”修饰，此处需填rely的形容词形式reliable，意为“可靠的”。故填reliable。 85．句意：后来，一位名叫吉迪恩·桑德巴克的瑞典工程师在1913年改进了它的设计。此处指代上文提到的“拉链的”设计，需用形容词性物主代词its修饰名词“design”。 86．句意：使其（拉链）更强壮且更容易使用。空前有“much”修饰，且and连接并列成分，前文用了比较级“stronger”，此处也需用easy的比较级形式easier。 87．句意：很快拉链开始出现在衣服、包和许多其他产品上。空前有“many other”修饰，意为“许多其他的”，后需接可数名词复数形式。故填products。 88．句意：如果没有它们，我们的日常生活将会变得不那么方便。“Without them”暗示了一种与现在事实相反的假设，本句属于含蓄虚拟语气，主句谓语动词应用“would + 动词原形”。故填would be。 89．句意：拉链在现代生活中扮演着重要的角色。固定搭配“play an important part in...”意为“在……中扮演重要角色/起重要作用”。important是以元音音素开头的单词，需用不定冠词an。 90．句意：想到如此小的东西能如此巨大地改变世界，真是令人惊叹。本句为固定句型“It is+形容词+to do sth.”，其中It是形式主语，真正的主语是后面的动词不定式。故填to think。 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $ Unit 5 Power of Ideas 单词词形、词性转换练习 【单句+语篇共90小题，限时60分钟】 一、用所给单词的适当形式填空 1. The telephone was a great ________ (invent). 2. The cat can open the door by ________ (it). 3. There is something wrong with my ________ (print). 4. These ________ (produce) are made in China. 5. You are ________ (suppose) to wear a seat belt in the car. 6. There was a ________ (rapidly) change in his attitude. 7. The ________ (east) part of the country is rich. 8. Water ________ (freeze) at zero degrees Celsius. 9. Many ________ (tourism) visit Beijing every year. 10. The government is facing ________ (economy) problems. 11. We must face the ________ (real). 12. You are ________ (responsibility) for your own choices. 13. The city has ________ (rapid) changed in recent years. 14. This coat is too ________ (expense). 15. The police ________ (office) helped the lost child. 16. I am ________ (certain) that he will come. 17. The film is not ________ (suit) for children. 18. I feel ________ (certain) about the answer, so I need to check it again. 19. These shoes are ________ (cheap) than those ones. 20. The artist ________ (creation) a beautiful painting last year. 21. My sister was ________ (birth) in 2010. 22. There are many big ________ (company) in this city. 23. The ________ (product) of paper has increased a lot. 24. The weather changed ________ (gradual) over the years. 25. English is ________ (wide) used around the world. 26. Thomas Edison was a famous ________ (invent). 27. It is my ________ (responsible) to look after my little brother. 28．Last month, the whole class ________ (divide) into six groups to do different tasks in order to finish the work on time. 29．All students ________ (require) to wear school uniforms on weekdays. 30．It is impossible ________ success without hard work. (gain) 31．The ancient tea trees ________ by local people long ago. (protect) 32．Now, ________ of students have developed the habit of daily reading, just like me. (hundred) 33．Many Chinese sayings ________ (pass) on to younger people after they are shared by the old in our daily life. 34．In 2016, the great “China Sky Eye” was finally ________ (complete). 35．Using too many non-recyclable materials can ________ (lead to) serious environmental problems. 二、语法填空 阅读下列短文，根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的正确形式。 01 What if a boat could carry people and clean water at the same time? In South Korea, a company called Ecopeace has 36 (create) the Healing Boat to do just that. The company was 37 (found) in 2012. The Healing Boat is driven by energy from the sun, so it can travel without using oil. As it moves across lakes, it also helps clean the water by filtering (滤) it. The Healing Boat can carry up to eight 38 (passenger). According to Ecopeace, about 100 tons of water can be cleaned by it every day. With its help, waste and 39 (harm) green algae (水藻) are cleared from the water. 40 this way, fish and other animals can be protected, and clean water can be enjoyed by people. In the day, 41 boat gives visitors short tours of local freshwater areas. People can learn about the waterways 42 see several landmarks during the 30-minute ride. At night, the boat is used for fun activities such as food truck tours and fireworks shows. 3D videos about underwater ecosystems are also offered to visitors and help 43 (they) learn more about how the boat itself protects nature. The Healing Boat 44 (real) helps make water protection more interesting for the public. Besides, Ecopeace hopes 45 (cooperate) with other organizations in the future to play a greater role in protecting water resources. 02 Humans are full of great ideas, and some of them have changed the world completely. The telephone 46 (invent) by Alexander Bell in 1876. Now people all over the world 47 (connect) to each other through phones and the Internet. The word “robot” 48 (introduce) for the first time in a play in 1920. Today, robots 49 (use) to do many dangerous jobs in factories. Scientists say that the world’s oldest wheel 50 (find) in Eastern Europe. Just 51 (suppose) there were no wheels — our life would be very different. Great inventions were not made in one day. They 52 (develop) little by little by hard-working people, and science and technology 53 (make) our life better every day. More and more people have 54 (gain) a lot from these great ideas. Maybe your idea will be the next great 55 (invent)! 03 Albert Einstein once said, “I have no special talents. I am only passionately curious.” In fact, many great 56 (discover) and inventions would not have been possible without this quality. Curiosity often leads 57 new understanding. Benjamin Franklin, for example, was deeply curious about electricity. His experiments, widely known today, 58 (rapid) advanced early electrical science. Through his work, the lightning rod 59 (invent), protecting buildings from storms. Curiosity also drives people to create. During the Ming Dynasty, Wan Hu was so curious about flight that he attempted to build a “flying chair” made of kites and rockets. He was supposed 60 (reach) the sky, but the test ended tragically. Still, his courage 61 (it) inspired later generations to explore space more safely. Curiosity, however, is not just about bold attempts. It also carries a 62 (responsible) to question, learn, and build upon what is known. People have always wondered how the world works and 63 to understand it better. This drive is at the heart of scientific progress. As explorer Jacques Cousteau noted, a scientist is like someone “looking through a keyhole, 64 opening into nature.” It is curiosity, 65 (complete) focused and patiently applied, that continues to open doors to new worlds for all of us. 04 The compass (指南针) is one of the four great inventions of ancient China. It has another Chinese name, Sinan, which 66 (invent) during the Warring States period and is considered the first compass. It was used to find the 67 (direct) at first. 68 , people preferred to use it for fortune (命运) telling rather than navigation (航海) back then. Later on, this simple tool 69 (produce) great changes in how people travelled. In the 70 (eleven) century, the Northern Song Dynasty saw a great improvement. People created small needles (指针) with magnetized steel (磁性钢). One end of the needle points north, while 71 other points south. Then the 72 (early) magnetic compass was created. This invention turned long-distance sea voyages (航行) into 73 (real). People slowly realized that the compass could really change the world 74 (great). Over the years, people have been able 75 (explore) new sea routes that were once unreachable. 76 the compass, many European countries could not have made great progress in sea voyages. It was not until around the 13th century that the compass was introduced to Europe 77 China. 78 (it) arrival sped up the development of the European marine (海洋的) industry. Today, the compass is still 79 (wide) used in many fields. It is truly one of the most 80 (value) inventions in human history. 05 Many of us use the zipper every day, but few know who invented it. The zipper is a great 81 (invent) that we often take for granted. It 82 (create) by Whitcomb Judson in 1893. At first, it 83 (call) the “clasp locker”. However, it wasn’t widely used at that time because it was not very 84 (rely). Later, a Swedish engineer named Gideon Sundback improved 85 design in 1913, making it much stronger and 86 (easy) to use. The new version worked well, and soon zippers began to appear on clothes, bags and many other 87 (product). Today, zippers are everywhere. Without them, our daily life 88 (be) much less convenient. From coats to suitcases, zippers play 89 important part in modern life. It is amazing 90 (think) how such a small thing can change the world so greatly. 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $