Unit 5 语法填空专项练习 2026-2027学年外研版英语九年级上册

**基本信息** 以生态保护等主题语篇为载体，系统覆盖动词形式、冠词介词等核心语法点，通过语境化填空考查综合语言运用能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |动词形式|约18题|考查时态、语态、非谓语等|从基础时态到复杂非谓语，形成"时态-语态-非谓语"递进逻辑| |冠词介词|约14题|考查固定搭配及语境应用|围绕"定冠词特指-不定冠词泛指-介词搭配"的概念生成链条| |代词连词|约16题|考查从句连接词及逻辑关系|从简单连词到定语从句连接词，体现"简单连接-复杂从句"的推导过程| |名词形副|约12题|考查词性转换及比较级|遵循"名词复数-形容词副词转换-比较级应用"的拓展逻辑|

Unit 5 语法填空专项练习 2026-2027学年外研版英语九年级上册（学生版） Passage 1 The Qinghai-Tibet Plateau is one of the most special ecological areas in the world. It is home to many rare wild animals, 1 (include) the Tibetan antelope. In the 1990s, 2 rapid development of the wool trade made many poachers (偷猎者) kill Tibetan antelopes for their fur. As a result, the number of Tibetan antelopes dropped 3 low that the species was listed as endangered. Over the past 30 years, Chinese 4 (organise) have been working hard on the protection of this fragile ecosystem. Strict rules forbid poaching and stop 5 (industry) activities from destroying the antelopes’ living areas. Furthermore, more and more local people have joined volunteer groups to help 6 (monitor) the antelope population. The protection efforts have achieved great success: the number of Tibetan antelopes 7 (grow) from less than 70,000 in 1995 to over 300,000 in 2024. This story tells us that human activities can have both negative and positive 8 (influence) on nature. When we keep a good balance between development and 9 (protect), we can live in harmony with wild animals. This experience 10 (highlight) the importance of protecting the natural world for future generations. Passage 2 Nature provides us with everything we need, but we often forget to protect it. To keep a fine balance 11 humans and nature, we must take action now. First, we should reduce waste. We can reuse plastic bags and bottles instead 12 throwing them away. Second, we need to plant more trees. Trees help clean the air 13 provide homes for animals. Third, we should avoid 14 (use) chemicals that are harmful to the environment. Many people 15 (start) to make changes. For example, some cities have stopped using plastic straws. Others have set up recycling centers. These small changes 16 (make) a big difference over time. We must remember that nature is our friend, not our enemy. If we take good care 17 it, it will provide us with resources for years to come. Let’s work together 18 (keep) the balance of nature. Everyone can play 19 part in protecting the environment. It’s never too late 20 start. Passage 3 Writing a research report on ecosystems is a meaningful task. First, you need to choose 21 ecosystem to write about. It could be a rainforest, a wetland, a grassland, or 22 ecosystem type. Second, you should gather information about 23 ecosystem. This includes what it is, where it 24 (find), and what problems it faces. You should also find out 25 people are working to protect it. Third, you can organize your report 26 three parts: introduction, body, and conclusion. 27 the body, you should describe the elements of the ecosystem, the problems it faces, 28 the efforts people have made to protect it. Finally, you should 29 (share) your report with your class. This will help others understand the importance 30 protecting ecosystems. Passage 4 The world’s oceans are in great danger. The oceans 31 cover more than 70% of our planet are facing serious problems. Sea animals 32 depend on a healthy ocean are suffering. Many species are disappearing 33 a rapid speed. One of the biggest problems is plastic pollution. Millions of tons of plastic waste 34 (enter) the oceans every year. This plastic 35 (harm) sea animals that mistake it for food. Another problem is overfishing. People are catching more fish 36 the oceans can naturally replace. For those 37 care about the oceans, there is a lot 38 can be done. We should reduce the use of single-use plastics. We should also support sustainable fishing practices. Organizations 39 work to protect the oceans need our support. Remember, there is no time 40 (waste). Passage 5 Fish babies in space! In a space study on zebrafish, Chinese scientists have set a new record. They successfully made four zebrafish 41 (live) and grow in a closed water world. The zebrafish went to China’s space station on the Shenzhou XVIII spaceship on April 25. Since then, they 42 (be) living in a closed fish tank with some plants. The fish grew up and had their 43 (baby) in 43 days. So how did the special closed environment work? In fact, the plants 44 (make) air for the fish and the fish’s waste (排泄物) gave the plants food. The scientists gave the fish food through 45 special needle (针管). Such a closed-loop (封闭的) ecosystem is important for future studies in space. It means that plants and animals can live in space more 46 (simple)． The scientists also found that the zebrafish’s behavior (行为) in space was different 47 that on Earth. They often swam on their backs. That’s 48 the low gravity (重力) in space made it possible. On Earth, gravity pulls everything to Earth’s center, and animals can find their way 49 (easy). Gravity also makes their bodies work harder and become 50 (strong), said The Conversation. Humans and zebrafish share 70% of the same genes (基因). So the new finding will help scientists better understand human health. Passage 6 The word quicksand (流沙) makes some people shake with fear. This is probably because of the way many movies show it. In those 51 (film), quicksand often sucks (吸) people and animals to their deaths! Real quicksand is not the same 52 movie quicksand. It usually doesn’t hurt people or animals. It forms 53 (natural). It’s often just sand with a lot of water. This 54 (make) the sand soupy and runny. When the wet sand can no longer support weight, it is called “quick”. In fact, 55 (find) quicksand is not very hard. A beach is a good place to see how water affects (影响) sand. In the area where sea water runs onto the land, the sand changes. Here, water sinks into (渗入) the sand, making the sand wet 56 soft. For a few seconds, the surface is like quicksand. Sand is not 57 only thing that can become “quick”. Dirt, pebbles, and gravel (碎石) can also become quicksand under the right conditions. This means that quicksand forms when water mixes with one of 58 (this) materials in just the right way. Quicksand is usually 59 (see) in wetlands, or watery places. It’s almost never seen in deserts though there is a lot of sand. Think about movie quicksand again. Though quicksand is not so scary as the movies show, you should still be 60 (care) when you meet it. 学科网（北京）股份有限公司 $ Unit 5 语法填空专项练习 2026-2027学年外研版英语九年级上册（教师版） Passage 1 The Qinghai-Tibet Plateau is one of the most special ecological areas in the world. It is home to many rare wild animals, 1 (include) the Tibetan antelope. In the 1990s, 2 rapid development of the wool trade made many poachers (偷猎者) kill Tibetan antelopes for their fur. As a result, the number of Tibetan antelopes dropped 3 low that the species was listed as endangered. Over the past 30 years, Chinese 4 (organise) have been working hard on the protection of this fragile ecosystem. Strict rules forbid poaching and stop 5 (industry) activities from destroying the antelopes’ living areas. Furthermore, more and more local people have joined volunteer groups to help 6 (monitor) the antelope population. The protection efforts have achieved great success: the number of Tibetan antelopes 7 (grow) from less than 70,000 in 1995 to over 300,000 in 2024. This story tells us that human activities can have both negative and positive 8 (influence) on nature. When we keep a good balance between development and 9 (protect), we can live in harmony with wild animals. This experience 10 (highlight) the importance of protecting the natural world for future generations. 【答案】 1．including 2．the 3．so 4．organisations 5．industrial 6．to monitor/monitor 7．has grown 8．influences 9．protection 10．highlights 【导语】本文主要介绍了青藏高原上藏羚羊数量由减少到恢复的保护历程，强调了人类在发展与环境保护之间保持平衡的重要性。 【详解】1．句意：这里栖息着许多珍稀野生动物，其中包括藏羚羊。根据空前的完整主句“It is home to many rare wild animals”可知，此处需用介词引出包含的例子，表示“包括藏羚羊在内”。 2．句意：20世纪90年代，羊毛贸易快速发展，许多偷猎者为获取皮毛猎杀藏羚羊。根据空后的“rapid development of the wool trade”可知，此处特指羊毛贸易的快速发展，需用定冠词表特指。 3．句意：结果，藏羚羊数量锐减，该物种被列为濒危物种。根据空后的“that the species was listed as endangered”可知，此处是“so…that…”固定句型，表示“如此……以至于……”，说明数量下降得如此之低以至于被列为濒危物种。 4．句意：在过去30年间，中国各类组织一直致力于保护这片脆弱的生态系统。根据空前的形容词“Chinese”以及空后的谓语动词“have been working”可知，此处需填入可数名词复数作主语。organise的名词形式为organisation，其复数为organisations。 5．句意：严苛法规禁止偷猎，阻止工业活动破坏藏羚羊栖息地。根据空后的名词“activities”可知，此处需用形容词作定语修饰名词，表示“工业活动”。industry对应的形容词为industrial。 6．句意：此外，越来越多当地居民加入志愿队伍，协助监测藏羚羊种群数量。根据空前的动词“help”可知，此处是固定搭配help (to) do sth.，表示“帮助做某事”，需用动词原形或动词不定式。 7．句意：保护工作成效显著：藏羚羊数量从1995年不足7万只增长至2024年30万只以上。根据前句“The protection efforts have achieved great success”可知，此处是在具体说明取得的成功，数量增长这一动作从1995年一直持续到现在的2024年，且对现在造成了积极影响，应用现在完成时。主语“the number of Tibetan antelopes”表示“藏羚羊的数量”，谓语动词需用单数形式。 8．句意：这个事例告诉我们：人类活动对自然既能产生负面影响，也能带来积极影响。根据空前的“both negative and positive”可知，人类活动对自然的影响既有消极的也有积极的，影响不止一个，需用可数名词复数形式。 9．句意：当我们在发展与保护之间维持良好平衡，就能与野生动物和谐共处。根据空前的介词“between”以及并列连词“and”可知，此处需与前文的名词“development”保持词性一致，作介词的宾语。protect的名词形式为protection。 10．句意：这段经历凸显出为子孙后代保护自然环境的重要意义。根据主语“This experience”为第三人称单数，且整句陈述的是一个客观结论，应用一般现在时，谓语动词需加-s。 Passage 2 Nature provides us with everything we need, but we often forget to protect it. To keep a fine balance 11 humans and nature, we must take action now. First, we should reduce waste. We can reuse plastic bags and bottles instead 12 throwing them away. Second, we need to plant more trees. Trees help clean the air 13 provide homes for animals. Third, we should avoid 14 (use) chemicals that are harmful to the environment. Many people 15 (start) to make changes. For example, some cities have stopped using plastic straws. Others have set up recycling centers. These small changes 16 (make) a big difference over time. We must remember that nature is our friend, not our enemy. If we take good care 17 it, it will provide us with resources for years to come. Let’s work together 18 (keep) the balance of nature. Everyone can play 19 part in protecting the environment. It’s never too late 20 start. 【答案】 11．between 12．of 13．and 14．using 15．have started 16．will make 17．of 18．to keep 19．a 20．to 【导语】本文主要讲述了我们必须立刻采取行动来维持生态的平衡。 【详解】11．句意：为维持人与自然之间良好的平衡，我们现在必须行动起来。空前“keep a balance”和空后“humans and nature”可知，这里应该表示“人与自然之间的平衡”。between…and…意为“在……和……之间”。 12．句意：我们可以重复利用塑料袋和瓶子，而不是直接扔掉。空前“reuse plastic bags and bottles”和空后“throwing them away”语义相反。instead of doing sth.意为“代替、而不是做某事”，符合语境。 13．句意：树木净化空气，并且为动物提供栖息地。空前“Trees help clean the air”和空后“provide homes for animals”都是树木的好处，是并列关系，表示并列用“and”。 14．句意：我们应当避免使用对环境有害的化学物质。空前“avoid”意为“避免”，avoid doing sth.意为“避免做某事”，use应变为using。 15．句意：很多人已经开始做出改变。空后“some cities have stopped using plastic straws. Others have set up recycling centers.”可知，很多人已经开始行动了，这里用现在完成时，因此用have started表示“已经开始”。 16．句意：久而久之，这些微小改变将会产生巨大不同。空前“These small changes”为主语，空后“a big difference”为宾语。时间状语“over time”，表示将来产生的结果，使用一般将来时（will+动词原形），因此这里用will make表示“将产生巨大不同”。 17．句意：如果我们好好爱护它，它将长久不断为我们供给资源。take good care of意为“好好关心、好好爱护”。 18．句意：让我们共同努力维持生态平衡。不定式表目的，我们携手努力目的是维持大自然的平衡。work together to do sth.“协力做某事”，这里用to keep来表示“维持生态平衡”这一目的，作目的状语。 19．句意：每个人都可以为保护环境贡献一份力量。play a part in…意为“在……中发挥作用”。 20．句意：行动，永远为时不晚。It’s never too late to do sth.意为“为时未晚；做某事永远不迟”。 Passage 3 Writing a research report on ecosystems is a meaningful task. First, you need to choose 21 ecosystem to write about. It could be a rainforest, a wetland, a grassland, or 22 ecosystem type. Second, you should gather information about 23 ecosystem. This includes what it is, where it 24 (find), and what problems it faces. You should also find out 25 people are working to protect it. Third, you can organize your report 26 three parts: introduction, body, and conclusion. 27 the body, you should describe the elements of the ecosystem, the problems it faces, 28 the efforts people have made to protect it. Finally, you should 29 (share) your report with your class. This will help others understand the importance 30 protecting ecosystems. 【答案】 21．an 22．another 23．the 24．is found 25．how 26．into 27．In 28．and 29．share 30．of 【导语】本文介绍撰写生态系统研究报告的完整步骤，告诉我们如何完成一份合格的生态系统主题研究报告。 【详解】21．句意：首先，你需要选择一个生态系统来写。“ecosystem”是可数名词单数，单词以元音音素开头，此处是泛指某一个生态系统，因此用不定冠词an。 22．句意：它可以是一片雨林，一块湿地，一片草原，或者另一种生态系统类型。前文已经列举了几种生态系统，此处指代三者及以上当中的另一个类别，因此填another。 23．句意：其次，你应当收集关于这个生态系统的相关信息。此处指代上文已经挑选好的那一个生态系统，属于特指，因此用定冠词the。 24．句意：这包括它是什么，它在哪里被发现，以及它面临哪些问题。主语it和动词find之间属于被动关系，整篇短文使用一般现在时，一般现在时被动语态结构为is+过去分词，因此填is found。 25．句意：你也应当弄清楚人们正在如何努力保护它。句子想要表达人们保护生态系统的方式，用how引导宾语从句作find out的宾语，因此填how。 26．句意：第三，你可以把你的报告划分成三部分：引言、主体和结尾。固定搭配organize…into…表示“把……划分成……”，介词into表示划分之后的结果，因此填into。 27．句意：在主体部分，你应当描述生态系统的构成要素。“in the body”是固定表达，表示“在主体部分”，本空位于句首，单词首字母需要大写，因此填In。 28．句意：你要描述生态系统的要素、它面临的问题以及人们为保护它所做出的努力。前后两部分是并列的报告写作描述内容，需要并列连词进行衔接，因此填and。 29．句意：最后，你应当和你的班级分享你的报告。情态动词should后面必须接动词原形，因此填share。 30．句意：这将帮助其他人理解保护生态系统的重要性。固定搭配the importance of…表示“……的重要性”，of用来引出被修饰的对象，因此填of。 Passage 4 The world’s oceans are in great danger. The oceans 31 cover more than 70% of our planet are facing serious problems. Sea animals 32 depend on a healthy ocean are suffering. Many species are disappearing 33 a rapid speed. One of the biggest problems is plastic pollution. Millions of tons of plastic waste 34 (enter) the oceans every year. This plastic 35 (harm) sea animals that mistake it for food. Another problem is overfishing. People are catching more fish 36 the oceans can naturally replace. For those 37 care about the oceans, there is a lot 38 can be done. We should reduce the use of single-use plastics. We should also support sustainable fishing practices. Organizations 39 work to protect the oceans need our support. Remember, there is no time 40 (waste). 【答案】 31．that/which 32．that/which 33．at 34．enter 35．harms 36．than 37．who 38．that 39．that/which 40．to waste 【导语】本文是一篇说明文，阐述了世界海洋面临的严重威胁（塑料污染、过度捕捞），并呼吁人们采取行动保护海洋，强调时不我待。 【详解】31．句意：覆盖地球70%以上的海洋正面临严重问题。该处为定语从句，先行词“The oceans”指物，关系代词在从句中作主语，可用“that”或“which”。 32．句意：依赖健康海洋的海洋动物正在遭受苦难。该处为定语从句，先行词“Sea animals”指物，关系代词在从句中作主语，可用“that”或“which”。 33．句意：许多物种正以很快的速度消失。前文描述物种因海洋危机而消失，此处强调消失速度之快，固定搭配“at a rapid speed”表“快速的”，介词at与speed搭配。 34．句意：每年有数百万吨塑料垃圾进入海洋。时间状语“every year”提示用一般现在时，主语“Millions of tons of plastic waste”中的“tons”为复数，谓语动词应与“tons”一致，用原形“enter”。 35．句意：这种塑料会伤害那些将其误认为是食物的海洋动物。主语“This plastic”为不可数名词，视为单数，一般现在时谓语动词加-s，故填“harms”。 36．句意：人们捕捞的鱼超过了海洋能够自然补充的数量。“more fish than”构成比较结构，表示“捕鱼量超过自然补充量”，than引导比较状语从句，呼应前面的more。 37．句意：对于那些关心海洋的人来说。定语从句修饰“those”（指人），关系代词在从句中作主语，用“who”。 38．句意：有很多事情可以做。定语从句修饰先行词“a lot”，表示许多事情，关系代词只能用“that”，在从句中作宾语。 39．句意：致力于保护海洋的组织需要我们的支持。定语从句修饰“Organizations”（指物），关系代词在从句中作主语，可用“that”或“which”。 40．句意：记住，没有时间可以浪费。固定结构“There is no time to waste”表示“没有时间可浪费”，不定式作后置定语修饰“time”。故填“to waste”。 Passage 5 Fish babies in space! In a space study on zebrafish, Chinese scientists have set a new record. They successfully made four zebrafish 41 (live) and grow in a closed water world. The zebrafish went to China’s space station on the Shenzhou XVIII spaceship on April 25. Since then, they 42 (be) living in a closed fish tank with some plants. The fish grew up and had their 43 (baby) in 43 days. So how did the special closed environment work? In fact, the plants 44 (make) air for the fish and the fish’s waste (排泄物) gave the plants food. The scientists gave the fish food through 45 special needle (针管). Such a closed-loop (封闭的) ecosystem is important for future studies in space. It means that plants and animals can live in space more 46 (simple)． The scientists also found that the zebrafish’s behavior (行为) in space was different 47 that on Earth. They often swam on their backs. That’s 48 the low gravity (重力) in space made it possible. On Earth, gravity pulls everything to Earth’s center, and animals can find their way 49 (easy). Gravity also makes their bodies work harder and become 50 (strong), said The Conversation. Humans and zebrafish share 70% of the same genes (基因). So the new finding will help scientists better understand human health. 【答案】 41．live 42．have been 43．babies 44．made 45．a 46．simply 47．from 48．because 49．easily 50．stronger 【导语】本文介绍中国科学家借助神舟十八号，在空间站封闭水环境中成功实现斑马鱼生存繁殖，讲解了动植物共生的太空封闭生态系统原理，对比斑马鱼在太空与地球的行为差异，并说明该研究对探索太空生态、研究人类健康具有重要意义。 【详解】41．句意：他们成功让四条斑马鱼在封闭的水环境中存活并生长。“make sb/sth do sth”是固定用法，意为“使某人/某物做某事”，此处用动词原形live。 42．句意：从那以后，它们一直生活在一个有植物的封闭鱼缸里。根据“Since then”可知，此处用现在完成进行时结构“have/has been doing”，主语“they”是复数，用have been。 43．句意：这些鱼长大并在43天内产下了幼崽。“their”后接可数名词复数，baby的复数为babies。 44．句意：植物为鱼儿供给空气，鱼类的排泄物又能给植物提供养分。本段描述过去实验中的过程，且后文谓语gave为过去式，此处用动词make的过去式made。 45．句意：科学家通过一根特殊的针管给鱼喂食。此处泛指“一根特殊针管”，“special needle”是可数名词单数，special以辅音音素开头，用不定冠词a。 46．句意：这意味着动植物在太空可以更简单地生存。此处修饰动词“live”，用simple的副词形式simply。 47．句意：科学家还发现斑马鱼在太空的行为与在地球上不同。“be different from”是固定短语，意为“与……不同”。应填from。 48．句意：那是因为太空中的低重力使这成为可能。前文说明斑马鱼太空的特殊行为，后文解释原因，此处表原因，用because引导表语从句。 49．句意：在地球上，重力将一切拉向地心，动物可以轻松找到方向。此处修饰动词“find”，用easy的副词形式easily。 50．句意：重力也使它们的身体更努力工作，变得更强壮。此处与“work harder”对应，用strong的比较级stronger。 Passage 6 The word quicksand (流沙) makes some people shake with fear. This is probably because of the way many movies show it. In those 51 (film), quicksand often sucks (吸) people and animals to their deaths! Real quicksand is not the same 52 movie quicksand. It usually doesn’t hurt people or animals. It forms 53 (natural). It’s often just sand with a lot of water. This 54 (make) the sand soupy and runny. When the wet sand can no longer support weight, it is called “quick”. In fact, 55 (find) quicksand is not very hard. A beach is a good place to see how water affects (影响) sand. In the area where sea water runs onto the land, the sand changes. Here, water sinks into (渗入) the sand, making the sand wet 56 soft. For a few seconds, the surface is like quicksand. Sand is not 57 only thing that can become “quick”. Dirt, pebbles, and gravel (碎石) can also become quicksand under the right conditions. This means that quicksand forms when water mixes with one of 58 (this) materials in just the right way. Quicksand is usually 59 (see) in wetlands, or watery places. It’s almost never seen in deserts though there is a lot of sand. Think about movie quicksand again. Though quicksand is not so scary as the movies show, you should still be 60 (care) when you meet it. 【答案】 51．films 52．as 53．naturally 54．makes 55．finding 56．and 57．the 58．these 59．seen 60．careful 【导语】本文澄清了电影中对流沙的夸张描绘，说明了真实流沙的形成原理及其对人和动物并不构成致命威胁的科学事实。 【详解】51．句意：在那些电影中，流沙常常把人吸进去淹死。those“那些”后用可数名词复数形式，film的复数形式为films，故填films。 52．句意：真正的流沙和电影中的不一样。固定搭配“the same as”意为“与……相同”，故填as。 53．句意：它是自然形成的。修饰动词forms需用副词，natural的副词形式为naturally，意为“自然地”，故填naturally。 54．句意：这使得沙子变成汤状且是流动的。描述客观事实用一般现在时，主语This为第三人称单数，make的三单形式为makes，故填makes。 55．句意：事实上，找到流沙并不难。此处需用动名词作主语，find的动名词形式为finding，故填finding。 56．句意：在这里，水渗入沙子，使沙子变得又湿又软。连接两个并列形容词wet和soft，用and。 57．句意：沙子并不是唯一能变得“流动”的东西。名词thing被only“唯一的”修饰，前面通常要用定冠词“the”，带有明确的特指含义，故填the。 58．句意：这意味着当水以恰当的方式与这些材料之一混合时就会形成流沙。空后名词materials是复数形式，应用this的复数these修饰，故填these。 59．句意：流沙通常在湿地或多水的地方被看到。主语Quicksand与动词see之间为被动关系，且句子描述客观事实，故用一般现在时的被动语态，be动词is已给出，故填see的过去分词seen。 60．句意：虽然流沙并不像电影中显示的那么可怕，但当你遇到它时，仍然应该小心。系动词be后需接形容词作表语；根据“ Though quicksand is not so scary as the movies show”可知，遇到流沙时应该小心，care的形容词形式为careful，意为“小心的”。 学科网（北京）股份有限公司 $