Unit 5【刷题型】（选词填空精准练）-2026-2027学年九年级英语上册单元模块满分必刷题（新教材外研版）

2026-2027学年九年级英语上册单元模块满分必刷题（新教材外研版） Unit 5 A fine balance【刷题型】(选词填空精准练) 人与自然—生态保护 基础篇 01 balance, pollute, protect, habitat, species, develop, action, disappear, encourage, ecosystem Keeping a fine balance between human progress and nature protection is the key to a better future. In the past century, rapid industrial growth has 1 many natural areas. Many rare animal 2 have lost their natural 3 and some have 4 completely. The damaged 5 also brings many natural disasters to humans. Now more people have realized the problem, so governments around the world have taken serious 6 to repair the environment. We also try to 7 more people to join in the work of 8 our planet. If we can 9 a fine 10 between development and protection, all living things on Earth will benefit a lot. 【答案】 1．polluted 2．species 3．habitats 4．disappeared 5．ecosystem 6．action 7．encourage 8．protecting 9．develop 10．balance 【导语】本文是一篇说明文。文章主要讲述了人类进步与自然保护之间保持平衡的重要性，工业化对环境造成的负面影响，以及政府和个人为修复环境所采取的行动和未来的展望。 【详解】 1．句意：在过去的一个世纪里，快速的工业增长已经污染了许多自然区域。空前有助动词has，是现在完成时结构，工业发展“污染”自然区域，pollute变为过去分词polluted。 2．句意：许多珍稀动物物种已经失去了自然栖息地，有些甚至完全消失了。此处指稀有动物物种，many后接可数名词复数，species单复数同形，直接使用即可。 3．句意：许多珍稀动物物种已经失去了自然栖息地，有些甚至完全消失了。对应物种失去的自然栖息地，指代多个物种的栖息地，habitat变为复数habitats。 4．句意：许多珍稀动物物种已经失去了自然栖息地，有些甚至完全消失了。空前有助动词have，是现在完成时，部分物种已经完全消失，disappear变为过去分词disappeared。 5．句意：受损的生态系统也给人类带来许多自然灾害。根据“brings many natural disasters to humans”及所给单词可知，是受损的生态系统也给人类带来许多自然灾害，此处指代被破坏的各类生态系统，ecosystem“生态系统”，根据brings可知，主语为单数形式。 6．句意：现在越来越多的人意识到了这个问题，因此世界各国政府都采取了认真的行动来修复环境。take action为固定搭配，意为“采取行动”，action在此处作不可数名词使用。 7．句意：我们还努力鼓励更多的人加入保护地球的工作。根据“more people to join in the work of ...our planet”及所给单词可知，是鼓励更多的人加入，try to do sth意为“努力做某事”，to后接动词原形，encourage意为“鼓励”。 8．句意：我们还努力鼓励更多的人加入保护地球的工作。根据“taken serious...to repair the environment”可知，是保护地球，介词of后接动词ing形式，protect意为“保护”，动名词形式为protecting。 9．句意：如果我们能在发展和保护之间取得良好的平衡，地球上的所有生物都将受益匪浅。根据“a fine...between development and protection,”可知，是在发展和保护之间建立良好的平衡，情态动词can后接动词原形，develop意为“发展/建立”，符合语境。 10．句意：如果我们能在发展和保护之间取得良好的平衡，地球上的所有生物都将受益匪浅。固定搭配a fine balance表示“良好的平衡”，直接使用名词balance。 02 law  danger  they  wild  effort  environment  set  catch  both  success protect  table The Siberian tiger (东北虎) is one of the most beautiful animals in the world. But in the past, they lived in great 1 . People hunted them for their fur, and their living areas became smaller. To save the tigers, the Chinese government has done a lot. First, they passed (通过) a 2 to stop hunting. Second, they 3 up several national parks for the tigers to live in. Local people also made great 4 . They moved out of the forest and gave the land back to nature. The forests became thick and green again. With a better 5 , the tigers had more space and food. Now, the number of 6 tigers is increasing. Scientists use cameras to 7 them and record their numbers. They found that baby tigers are being born in the forest. This is a great 8 . It shows that 9 humans and nature can live in peace. We should continue to 10 these beautiful animals and give them a better future. 【答案】 1．danger 2．law 3．set 4．efforts 5．environment 6．wild 7．catch 8．success 9．both 10．protect 【导语】本文是一篇说明文，主要讲述了中国政府及当地人民为保护东北虎所采取的措施及其取得的成效，呼吁人们继续保护动物与自然和谐共处。 【详解】 1．句意：但在过去，它们生活在极大的危险中。此处需要一个名词作介词in的宾语。根据固定搭配in great danger“处于极大危险中”，结合后文“人们为了皮毛猎杀它们”的语境，danger符合语义。 2．句意：首先，他们通过了一项法律来停止捕猎。此处需要一个名词作不定冠词a的宾语。根据前文“政府出台保护措施”的语境，pass a law“通过法律”是固定搭配，law符合语义。 3．句意：其次，他们建立了几个国家公园供老虎居住。此处需要一个动词的过去式作谓语。根据固定搭配set up“建立”，结合动作发生在过去的时态要求，set的过去式仍为set，符合语义。 4．句意：当地人民也做出了巨大的努力。此处需要一个名词复数作made的宾语。根据固定搭配make great efforts“付出巨大努力”，结合后文“他们搬出森林归还土地”的语境，effort变为复数efforts符合语义。 5．句意：随着更好的环境，老虎有了更多的空间和食物。此处需要一个名词作介词with的宾语。根据前文“森林重新变得茂密翠绿”的语境，environment“环境”符合语义。 6．句意：现在，野生老虎的数量正在增加。此处需要一个形容词作定语修饰名词tigers。根据后文“科学家用相机记录它们的数量，发现幼虎在森林中出生”的语境，wild“野生的”符合语义。 7．句意：科学家用相机捕捉它们的身影并记录它们的数量。此处需要一个动词原形作目的状语的核心词。根据前文“布设红外相机监测东北虎活动”的保护措施，catch“捕捉（影像）”符合语义。 8．句意：这是一个巨大的成功。此处需要一个名词作表语。根据前文“野生东北虎数量增长，幼虎顺利出生”的保护成果，success“成功”符合语义。 9．句意：这表明人类和自然两者可以和平共处。此处需要一个限定词修饰并列的两个主语。根据固定搭配both...and...“两者都”，结合后文“人类和自然”的并列关系，both符合语义。 10．句意：我们应该继续保护这些美丽的动物，此处需要一个动词原形作continue to的宾语。根据全文“保护东北虎”的核心主题，protect“保护”符合语义。 03 change control other provide because grow large from protect till too foreigner The panda is a Chinese national treasure. The World Wildlife Fund (WWF) chose it as its logo 1 it is beautiful, endangered and loved by many people around the world. Some 2 from other countries even believe that pandas are kept as pets in China! In 2016, the panda was moved from “endangered” to “vulnerable” on the IUCN Red List. This 3 was made possible because the Chinese government has made great efforts. One of the first national parks in China, the Giant Panda National Park, is three times as 4 as Yellowstone National Park in the US. So far, China has set up more than 60 protected areas for pandas. The country has also built research centres, where hundreds of pandas have been born. Local people played an important role in protecting pandas 5 . With a better understanding of panda 6 , farmers returned part of their farmland to the forests. And they also planted more trees and bamboo to 7 pandas with more space and food. The panda is not the only one to benefit 8 these actions. The forests are also home to many 9 animals and plants. As the forests have 10 larger, the panda’s neighbours have also lived a better life. 【答案】 1．because 2．foreigners 3．change 4．large 5．too 6．protection 7．provide 8．from 9．other 10．grown 【导语】本文主要讲述了大熊猫作为中国国宝的地位变化、中国政府及当地人民为保护大熊猫所做的努力以及取得的成效。 【详解】 1．句意：世界自然基金会选择它作为标志，因为它美丽、濒危且深受世界各地许多人的喜爱。设空处引导原因状语从句，解释WWF选择大熊猫作为标志的原因，“because”意为“因为”，引导原因状语从句，符合语境。 2．句意：一些来自其他国家的外国人甚至相信熊猫在中国是被当作宠物饲养的！Some后接可数名词复数，“from other countries”说明是指外国人，foreigner意为“外国人”，其复数形式为foreigners。 3．句意：这一改变成为可能是因为中国政府做出了巨大努力。This后接名词作主语，指代上文提到的从“濒危”到“易危”的状态变化，change 意为“改变”，符合语境。 4．句意：中国首批国家公园之一的大熊猫国家公园是美国黄石国家公园面积的三倍大。as...as中间接形容词原级，表示“和……一样”；此处比较两者的大小，large意为“大的”，符合语境。 5．句意：当地人在保护大熊猫方面也发挥了重要作用。上文介绍政府的努力，此处强调当地人的努力，设空处位于句末，表示“也”，too符合语境。 6．句意：随着对熊猫保护工作的更好理解，农民们将部分耕地归还给了森林。of后接名词；根据“With a better understanding of panda...”可知，此处指熊猫保护工作；protect是动词，其名词形式为protection，意为“保护”。 7．句意：他们还种植了更多的树木和竹子，为熊猫提供更多的空间和食物。to后接动词原形表目的，表示“提供”，provide sb with sth 为固定搭配，意为“为某人提供某物”，填provide。 8．句意：熊猫不是唯一从这些行动中受益的物种。benefit from为固定短语，意为“从……中受益”，填from。 9．句意：森林也是许多其他动植物的家园。修饰名词animals and plants，应用形容词；除了熊猫，还有其他的动物，other符合语境。 10．句意：随着森林变得更大，熊猫的邻居们也过上了更好的生活。have后接过去分词构成现在完成时；主语是the forests，谓语应用grow，grow的过去分词为 grown。 培优篇 04 balance  empty  start  back  with  number  admire  but  we  drop  be  mark What would happen if humans disappeared? Animals would soon increase in 1 . There would be more wildlife. Traffic noise would 2 greatly. The world would be quieter. There used to be many people on streets and beaches. However, these places would be 3 . Trees would grow freely without being cut down. Forests could even take 4 some farmland. Natural wonders hidden by pollution would appear again, 5 no one would admire their beauty. Humans have left many 6 on the earth over time. Our rapid development has changed nature deeply. The world 7 not a game. We can’t cancel it and 8 over. We must learn to get along 9 nature. Let 10 remember to respect the natural world around us. After all, the earth is home to every living thing in human society. 【答案】 1．numbers 2．drop 3．empty 4．back 5．but 6．marks 7．is 8．start 9．with 10．us 【导语】本文是一篇说明文，主要假设了人类消失后世界可能发生的变化，指出自然会恢复但无人欣赏，并呼吁人类要学会与自然和谐相处，尊重自然世界。 【详解】 1．句意：动物的数量很快就会增加。根据后一句“There would be more wildlife（会有更多野生动物）” 提示动物数量变多，方框内选number，意为“数量”；固定短语in numbers意为“在数量上”，常用复数形式。故填numbers。 2．句意：交通噪音将会大大下降。根据后文“The world would be quieter.”，说明噪音“下降”，方框内选drop，would为情态动词，后接动词原形。故填drop。 3．句意：然而，这些地方将会是空荡荡的。however表示转折：前面说过去很多人，人类消失之后，地方就变空，方框内选empty，意为“空荡的”；be动词后接形容词作表语，故填empty。 4．句意：森林甚至会重新夺回部分农田。根据语境：人类消失，森林重新占回曾经的农田；固定短语take back意为“收回/拿回”，符合语境。故填back。 5．句意：被污染隐藏的自然奇观将再次出现，但没有人会欣赏它们的美。前后句意：奇观重现，但是没有人类去欣赏，存在转折关系，用连词but连接。 6．句意：随着时间的推移，人类在地球上留下了许多痕迹。根据语境：长时间人类会留下痕迹，方框内选mark。many后接可数名词复数，mark意为“痕迹”，需变为复数marks。 7．句意：世界不是一场游戏。陈述客观事实用一般现在时，主语The world为单数，be动词应变为is。 8．句意：我们不能取消它并重新开始。固定短语start over，意为“重新开始”，方框内选start，and连接并列谓语，cancel为原形，start也用原形。故填start。 9．句意：我们必须学会与自然相处。固定短语get along with意为“与……相处”，符合语境。故填with。 10．句意：让我们记住要尊重我们周围的自然世界。Let为动词，后接人称代词宾格，方框内选we，应变为us。 05 cut, pour, build, save, grow, close, return, plant, protect, pollute, disappear The river which runs past our town was clean twenty years ago. Then, in 2005, a factory 1 in the town, and for ten years it 2 its waste straight into the water. The chemicals which went into the river 3 it badly, and soon most of the fish 4 . Nobody 5 the river in those years, because there seemed to be nothing left in it. In 2016 the government 6 the factory and told the town to clean the water. Since then the town 7 more than twenty thousand trees along the banks. The trees 8 fast, and now both banks are green again. The fishermen who left ten years ago 9 last spring, and last month a boy 10 a fish which had jumped out of the water and could not get back. The river is giving us a second chance, said an old fisherman. 【答案】 1．was built 2．poured 3．polluted 4．disappeared 5．protected 6．closed 7．has planted 8．grow 9．returned 10．saved 【导语】本文讲述了流经作者所在小镇的河流20年前原本清澈，后来因建厂排污被严重污染、鱼虾绝迹，之后政府关停工厂开展治理，通过植树护水让河流生态逐步恢复，离开的渔民也相继返回的故事。 【详解】 1．句意：然后，2005年，一座工厂在镇上被修建起来，之后的十年间，它一直把废弃物直接排入水中。主语factory是“被修建”，与动词build是被动关系，且时间状语in 2005是过去的具体时间，用一般过去时的被动语态。故填was built。 2．句意：然后，2005年，一座工厂在镇上被修建起来，之后的十年间，它一直把废弃物直接排入水中。此处表示“排”废弃物，pour符合语境。时间状语for ten years指代工厂建成后的十年，是过去的时间段，可以用一般过去时表示过去发生的动作。故填poured。 3．句意：排入河里的化学物质严重污染了水体，很快大部分鱼都消失了。pollute符合“污水污染河流”的逻辑。语境描述过去发生的客观事实，用一般过去时。故填polluted。 4．句意：排入河里的化学物质严重污染了水体，很快大部分鱼都消失了。河流被污染之后的结果就是鱼类disappear“消失”，描述过去发生的状况，用一般过去时。故填disappeared。 5．句意：那些年没有人保护这条河，因为河里看起来已经什么都不剩了。河流被污染说明没有人protect“保护”，时间状语in those years指代河流被污染后的那段时期，描述过去的状态，用一般过去时。故填protected。 6．句意：2016年政府关闭了这家工厂，要求全镇清理水体。时间状语in 2016是过去的具体时间，结合后文要求治理污水的逻辑，是政府close“关停”了排污工厂，用一般过去时。故填closed。 7．句意：从那之后，全镇已经沿着河岸种了两万多棵树。plant trees“植树”，时间状语since then是现在完成时的标志，动作从过去2016年开始持续到现在，主语是the town，故填has planted。 8．句意：这些树生长得很快，现在两岸又变绿了。此处表示树grow“生长”得快。可以用一般现在时描述树木的生长特性，主语为复数名词trees，故填grow。 9．句意：十年前离开的渔民们去年春天都回来了，上个月，一个男孩救了一条跳出水面、没法回到水里的鱼。时间状语last spring是过去的具体时间，对应前文“left ten years ago”，用一般过去时表示“返回”的动作。故填returned。 10．句意：十年前离开的渔民们去年春天都回来了。上个月，一个男孩救了一条跳出水面、没法回到水里的鱼。save符合“帮跳上岸的鱼回到水里”的动作逻辑，时间状语last month是过去的具体时间，用一般过去时。故填saved。 06 benefit，admire，rapid，society，affect，solve，punish，protection，organisation，tourist Rainforests are the natural wonders of the earth. They give us clean air, food and medicine, so everyone can 1 from them. However, the 2 development of human 3 has done great harm to them. Every year, large areas of rainforest disappear, and many animals are in danger. Rubbish and logging also 4 the life of plants and animals there. Now, green 5 around the world are working hard for rainforest 6 . They teach 7 and local people to protect nature when they travel. People who cut down trees or hunt wild animals will be 8 . Let us 9 nature and keep the balance, or the harm will be hard to 10 . 【答案】 1．benefit 2．rapid 3．society 4．affect 5．organisations 6．protection 7．tourists 8．punished 9．admire 10．solve 【导语】本文讲述雨林对人类十分有益，但人类社会快速发展破坏了雨林，环保组织正开展雨林保护工作，呼吁人们敬畏自然，否则生态损害难以挽回。 【详解】 1．句意：它们给我们提供洁净的空气、食物和药物，所以每个人都能从中受益。此处需要一个动词原形，在句中作谓语。因为情态动词can后必须接动词原形，固定搭配benefit from表示“从……获益”，前文提到雨林给人类提供空气、食物和药物，人们可以从中受益，所以选择benefit。 2．句意：然而，人类社会的快速发展对雨林造成了巨大伤害。此处需要一个形容词，在句中作定语修饰名词development。因为空格后是名词development，需要形容词来描述发展的特点，rapid development表示“快速发展”，符合人类社会快速发展破坏雨林的语境，所以选择rapid。 3．句意：然而，人类社会的快速发展对雨林造成了巨大伤害。此处需要一个名词，和human构成名词短语。因为human society是固定表达，意为“人类社会”，作介词of的宾语，所以选择society。 4．句意：垃圾和伐木活动同样影响着那里动植物的生存。此处需要一个动词原形，在句中作谓语。主语Rubbish and logging是复数，一般现在时谓语用原形；句子表达垃圾与伐木会影响动植物的生存，affect意为“影响”，贴合语境，所以选择affect。 5．句意：现在，世界各地的环保组织正在为雨林保护努力工作。此处需要一个可数名词复数，在句中作主语。因为后面谓语动词是are，主语需要复数名词，organisation表示“组织”，green organisations指“环保组织”，符合世界各地环保组织保护雨林的语境，所以选择organisations。 6．句意：现在，世界各地的环保组织正在为雨林保护努力工作。此处需要一个名词，作介词for的宾语。rainforest protection意为“雨林保护”，介词后接名词，表达为雨林保护而努力，所以选择protection。 7．句意：他们教导游客和当地人在旅行时保护自然。此处需要一个可数名词复数，和local people并列作宾语。后文when they travel提示和旅行相关，tourist意为“游客”，复数tourists，和当地人并列，所以选择tourists。 8．句意：砍伐树木或猎杀野生动物的人将会受到惩罚。此处需要一个动词过去分词，用于一般将来时的被动结构will be + done。句子表达砍伐树木、猎杀野生动物的人将会被惩罚，punish的过去分词是punished，表被动含义，所以选择punished。 9．句意：让我们敬畏自然、保持生态平衡。此处需要一个动词原形，用于固定句型Let us do sth.。let us后面要接动词原形，句子呼吁我们敬畏自然，admire有“欣赏、敬畏”之意，符合语境，所以选择admire。 10．句意：否则这种危害将很难解决。此处需要一个动词原形，用于结构be hard to do sth.。to后面接动词原形，表达这种危害将会很难解决，solve意为“解决”，所以选择solve。 07 human;  again;  permit;  disappear;  nature;  imagine;  drop;  admire;  mark;  balance In 2007, Alan Weisman wrote The World Without Us, which imagines a world where all human activities stop. Cars, boats and planes 1 , and streets, beaches and parks become empty. Without humans, animals increase in number. Traffic noise 2 , so animals can hear each other easily and form families. Tourists disappear from beaches, so sea animals are not troubled. Ecosystems 3 again, trees grow freely, and forests take back the space where 4 lived. The earth becomes a green world 5 . Also, pollution disappears, so 6 wonders hidden by smog appear again. But there are no people to 7 the amazing world. Throughout history, humans have left many 8 on the earth. Rapid development has made us care less for nature. We can’t wait till 9 becomes reality. We need to think more about getting along with nature, and 10 nature to have her way. 【答案】 1．disappear 2．drops 3．balance 4．humans 5．again 6．natural 7．admire 8．marks 9．imagination 10．permit 【导语】本文是一篇说明文。文章主要介绍了Alan Weisman的书籍《没有我们的世界》，设想了一个没有人类活动的世界景象，并借此呼吁人类应思考与自然和谐相处，保护自然。 【详解】 1．句意：汽车、船只和飞机消失，街道、海滩和公园变得空无一人。此处需要一个动词，与主语“Cars, boats and planes”构成主谓结构。根据语境，没有人类活动，这些交通工具会“消失”，应用disappear。主语为复数，时态为一般现在时，故填disappear。 2．句意：交通噪音消失了，所以动物们可以很容易地听到彼此的声音并组建家庭。此处需要一个动词，作句子的谓语。根据语境，没有人类，交通噪音会“消失”，应用disappear。主语“Traffic noise”为不可数名词，时态为一般现在时，谓语动词用第三人称单数形式，故填drops。 3．句意：生态系统再次恢复平衡，树木自由生长，森林夺回了曾经人类居住的空间。此处需要一个动词，与主语“Ecosystems”构成主谓结构。根据语境，没有人类后，生态系统会“恢复平衡”，应用balance。主语为复数，时态为一般现在时，故填balance。 4．句意：生态系统再次恢复平衡，树木自由生长，森林夺回了曾经人类居住的空间。此处需要一个名词，作从句的主语。根据语境，森林夺回的是曾经“人类”居住的空间，应用human。此处表示泛指，应用复数形式，故填humans。 5．句意：地球再次变成一个绿色的世界。此处需要一个副词，修饰整个句子或动词。根据语境，没有人类后，地球会“再次”变成绿色世界，应用again，故填again。 6．句意：此外，污染消失了，所以被雾霾隐藏的自然奇观再次出现。此处需要一个形容词，修饰名词“wonders”。根据语境，被雾霾隐藏的是“自然的”奇观，应用nature的形容词形式natural，故填natural。 7．句意：但是没有人类来欣赏这个奇妙的世界。此处需要一个动词，构成“to do”不定式结构。根据语境，没有人类来“欣赏”这个奇妙的世界，应用admire，故填admire。 8．句意：纵观历史，人类在地球上留下了许多印记。此处需要一个名词，作“left”的宾语。根据语境，人类在地球上留下了许多“印记”，应用mark。many后接可数名词复数，故填marks。 9．句意：我们不能等到想象变成现实。此处需要一个名词，作从句的主语。根据语境，前文描述的是作者的“想象”，应用imagine的名词形式imagination，故填imagination。 10．句意：我们需要更多地思考与自然和谐相处，并允许自然按照自己的方式发展。此处需要一个动词，与“nature”构成动宾结构。根据语境，是“允许”自然按照自己的方式发展，应用permit。与前文“think”并列，用动词原形，故填permit。 08 problem  third   mainly   balance  they  imagine  healthy  show  across  rubbish I am the Three-North Shelter Forest (三北防护林) Programme. I am a big tree-planting project in China. My job is 1 to stop deserts from growing and protect farmland in northern China. China is the 2 country to develop plantation forests in the world. This project 3 how planting trees can change the environment for the better. Before the Chinese government started this important project in 1978, this land had many 4 . The soil was too dry, and sandstorms (沙尘暴) often covered houses and roads. People also threw a lot of 5 everywhere, which made the bad environment even worse. You can never 6 what great trouble scientists and people had in finding better ways to grow trees in such dry places over the years. Thanks to 7 efforts, little by little, the land has become better for plants and animals. Trees help make the air cleaner, reduce strong winds, and keep the soil 8 for farming. They also play an important role in improving the ecological 9 . In this way, I help local farmers to live a better life because crops (庄稼) begin to grow and more jobs are created for them. I am covered with trees now, like a Great Green Wall 10 northern China. In the future, I believe that I will make northern China even greener and more beautiful. 【答案】 1．mainly 2．third 3．shows 4．problems 5．rubbish 6．imagine 7．their 8．healthy 9．balance 10．across 【导语】本文以第一人称自述的形式介绍中国三北防护林工程，讲述该工程旨在阻止沙漠扩张、保护农田，以及人们在干旱地区种树所克服的困难，最终改善生态环境、提升当地农民生活的故事。 【详解】 1．句意：我的工作主要是阻止沙漠扩张，保护中国北部的农田。空格位于系动词is之后，需填副词作状语，结合“阐述工程核心目标”的语境，mainly（主要地）符合语法。 2．句意：中国是世界上第三个发展人工林的国家。空格修饰名词country，需填序数词作定语，选项third（第三）符合语法及“中国在人工林发展中的排名”的语境。 3．句意：这个工程展示了种树如何能让环境变得更好。句子缺少谓语动词，主语This project为第三人称单数，需用一般现在时三单形式，结合“说明工程成效”的语境，选项show（展示）变为第三人称单数形式shows，符合语法。 4．句意：……在这片土地上有许多问题。空格作had的宾语，且有many修饰，需填名词复数，后文土地干旱、沙尘暴等各类环境难题，选项problem（问题）变为复数形式problems，符合语法。 5．句意：人们还到处扔大量垃圾，这使得恶劣的环境雪上加霜。空格作threw的宾语，且a lot of后可接不可数名词，选项rubbish（垃圾）符合语法及“乱扔垃圾破坏环境”的语境。 6．句意：你永远想象不到，这些年来，科学家和人们为找到在如此干旱地区植树的更好办法，遇到了多大的困难。空格位于情态动词can之后，需填动词原形作谓语，结合“强调困难超乎想象”的语境，选项imagine（想象）符合语法。 7．句意：多亏了他们的努力，这片土地逐渐变得对动植物更有利。空格修饰名词efforts，需填形容词性物主代词，选项they的形容词性物主代词their（他们的），符合语法及“指代科学家和人们的付出”的语境。 8．句意：树木有助于净化空气、减少强风，并保持土壤健康以利于耕作。空格位于“keep the soil”之后，需填形容词作宾语补足语，选项healthy（健康的）符合语法及“树木改善土壤质量”的语境。 9．句意：它们在改善生态平衡方面也发挥着重要作用。空格作improving的宾语，需填名词，选项balance（平衡）符合语法及“树木维护生态稳定”的语境。 10．句意：我现在被树木覆盖，就像一道跨越中国北部的绿色长城。空格位于名词短语“northern China”之前，需填介词表示空间位置，选项across（横跨、穿越）符合语法及“防护林带延伸范围”的语境。 09 ecosystem; wetlands; grasslands; rainforests; deserts; rivers; balance; influence; protect; species Our planet is made up of many different ecosystems. 1 are areas where the ground is covered with water for part of the year. 2 are large areas of land covered with grass, where many animals live. 3 are home to countless 4 of plants and animals. 5 are dry places with very little rain. 6 flow through the land and provide water for life. All these ecosystems are connected. They work together to maintain the 7 of nature. Human activities can 8 ecosystems in both positive and negative ways. It is our responsibility to 9 these natural environments. By doing so, we ensure that the 10 can continue to support life for future generations. 【答案】 1．Wetlands 2．Grasslands 3．Rainforests 4．species 5．Deserts 6．Rivers 7．balance 8．influence 9．protect 10．ecosystem 【导语】本文是一篇科普说明文，介绍地球上各类生态系统，阐述不同自然环境的特点，说明生态系统之间相互联系，呼吁人类保护自然环境。 【详解】 1．句意：湿地是一年中部分时段地面被水覆盖的区域。根据下文“the ground is covered with water”可知，此处描述湿地，备选词wetlands符合语境，位于句首，首字母需要大写。 2．句意：草原是大片被草覆盖的土地，许多动物在此生活。根据下文“large areas of land covered with grass”可知，此处描述草原，备选词grasslands符合语境，位于句首，首字母需要大写。 3．句意：热带雨林是无数动植物的家园。根据下文“are home to countless … of plants and animals”可知，此处描述物种丰富的热带雨林，备选词rainforests符合语境，位于句首，首字母需要大写。 4．句意：热带雨林是无数动植物物种的家园。根据上下文语境，此处表达动植物的物种，备选词species符合语境，countless后接复数名词species。 5．句意：沙漠是雨水极少的干旱地带。根据下文“dry places with very little rain”可知，此处描述沙漠，备选词deserts符合语境，位于句首，首字母需要大写。 6．句意：河流流经陆地，为生命提供水源。根据下文“flow through the land and provide water for life”可知，此处描述河流，备选词rivers符合语境，位于句首，首字母需要大写。 7．句意：它们协同作用，维持自然界的平衡。根据固定搭配maintain the balance of nature“维持自然平衡”可知，备选词balance符合语境。 8．句意：人类活动会以积极和消极两种方式影响生态系统。情态动词“can”后面需要接动词原形，根据下文“in both positive and negative ways”可知，人类活动会“影响”生态系统，备选词influence符合语境。 9．句意：保护这些自然环境是我们的责任。固定句型“It is one’s responsibility to do sth.”意为“做某事是某人的责任”，to后面接动词原形；结合下文“ these natural environments”，此处是指保护自然环境，备选词protect符合语境。 10．句意：通过这样做，我们确保生态系统能够继续为后代的生命提供支撑。根据上下文，此处将地球上各类自然环境视作一个统一完整的生态整体，the ecosystem可以表示生态系统这一整体概念，备选词ecosystem符合语境。 10 pollute  that  increase  drop  protect  nature give  live  bad  down  with  disappear Our environment is in danger. There are many problems 1 we need to solve. For example, air and water 2 is very serious. The number of wild animals is decreasing (减少) instead of 3 . We must realize the importance of 4 . First, we should stop cutting 5 forests. Trees are the homes of many animals that are losing their 6 places. Second, we need to 7 the environment. We should plant more trees and save water. Humans and nature depend on each other. We should learn to get along 8 nature. If we do nothing, many animals will 9 soon. The temperature will increase and the weather will be 10 . Let’s take action now to protect our planet. 【答案】 1．that 2．pollution 3．increasing 4．nature 5．down 6．living 7．protect 8．with 9．disappear 10．worse 【导语】本文是一篇说明文。文章主要讲述了环境面临的危险，如污染和野生动物减少，并提出了保护环境的建议，呼吁人们行动起来保护地球。 【详解】 1．句意：有许多我们需要解决的问题。设空处引导定语从句，修饰先行词problems，先行词指物，且在从句中作宾语，关系代词that符合语境。 2．句意：例如，空气和水污染非常严重。设空处作主语，需填名词；结合“air and water”和“is very serious”可知，是空气和水“污染”，pollute的名词pollution意为“污染”，为不可数名词，符合语境。 3．句意：野生动物的数量正在减少而不是增加。instead of是介词短语，后接动名词作宾语；结合“The number of wild animals is decreasing”的对比逻辑可知，此处对应“增加”，increase的动名词形式increasing符合要求。 4．句意：我们必须认识到自然的重要性。设空处作of的宾语，需填名词；结合后文“Humans and nature depend on each other”可知，是“自然”的重要性，nature是名词，意为“自然”，符合语境。 5．句意：首先，我们应该停止砍伐森林。设空处与cut构成固定搭配；结合“forests”可知是停止砍伐森林，固定搭配cut down意为“砍倒”，故填down，和cut构成固定短语。 6．句意：树木是许多动物的家园，这些动物正在失去它们的栖息地。设空处修饰后面的名词places，需填形容词；此处表示动物的栖息地，固定表达living places意为“栖息地、居住地”，用live的形容词性动名词形式living作定语。 7．句意：第二，我们需要保护环境。need to后接动词原形作宾语；结合后文“We should plant more trees and save water”的举措可知，此处是要“保护”环境，动词protect符合语境。 8．句意：我们应该学会和自然和睦相处。固定搭配get along with意为“与……和睦相处”，此处表示和自然和谐共处，介词with符合短语搭配要求。 9．句意：如果我们什么都不做，很多动物很快就会消失。will后接动词原形构成一般将来时；结合前文环境被破坏、我们什么都不做的假设可知，动物会因此“消失”，动词disappear符合语境。 10．句意：气温将会上升，天气会变得更差。be动词后接形容词作表语；此处暗含天气会比之前更差的比较含义，将bad变为比较级worse。 学科网（北京）股份有限公司 $ 2026-2027学年九年级英语上册单元模块满分必刷题（新教材外研版） Unit 5 A fine balance【刷题型】(选词填空精准练) 人与自然—生态保护 基础篇 01 balance, pollute, protect, habitat, species, develop, action, disappear, encourage, ecosystem Keeping a fine balance between human progress and nature protection is the key to a better future. In the past century, rapid industrial growth has 1 many natural areas. Many rare animal 2 have lost their natural 3 and some have 4 completely. The damaged 5 also brings many natural disasters to humans. Now more people have realized the problem, so governments around the world have taken serious 6 to repair the environment. We also try to 7 more people to join in the work of 8 our planet. If we can 9 a fine 10 between development and protection, all living things on Earth will benefit a lot. 02 law  danger  they  wild  effort  environment  set  catch  both  success protect  table The Siberian tiger (东北虎) is one of the most beautiful animals in the world. But in the past, they lived in great 1 . People hunted them for their fur, and their living areas became smaller. To save the tigers, the Chinese government has done a lot. First, they passed (通过) a 2 to stop hunting. Second, they 3 up several national parks for the tigers to live in. Local people also made great 4 . They moved out of the forest and gave the land back to nature. The forests became thick and green again. With a better 5 , the tigers had more space and food. Now, the number of 6 tigers is increasing. Scientists use cameras to 7 them and record their numbers. They found that baby tigers are being born in the forest. This is a great 8 . It shows that 9 humans and nature can live in peace. We should continue to 10 these beautiful animals and give them a better future. 03 change control other provide because grow large from protect till too foreigner The panda is a Chinese national treasure. The World Wildlife Fund (WWF) chose it as its logo 1 it is beautiful, endangered and loved by many people around the world. Some 2 from other countries even believe that pandas are kept as pets in China! In 2016, the panda was moved from “endangered” to “vulnerable” on the IUCN Red List. This 3 was made possible because the Chinese government has made great efforts. One of the first national parks in China, the Giant Panda National Park, is three times as 4 as Yellowstone National Park in the US. So far, China has set up more than 60 protected areas for pandas. The country has also built research centres, where hundreds of pandas have been born. Local people played an important role in protecting pandas 5 . With a better understanding of panda 6 , farmers returned part of their farmland to the forests. And they also planted more trees and bamboo to 7 pandas with more space and food. The panda is not the only one to benefit 8 these actions. The forests are also home to many 9 animals and plants. As the forests have 10 larger, the panda’s neighbours have also lived a better life. 培优篇 04 balance  empty  start  back  with  number  admire  but  we  drop  be  mark What would happen if humans disappeared? Animals would soon increase in 1 . There would be more wildlife. Traffic noise would 2 greatly. The world would be quieter. There used to be many people on streets and beaches. However, these places would be 3 . Trees would grow freely without being cut down. Forests could even take 4 some farmland. Natural wonders hidden by pollution would appear again, 5 no one would admire their beauty. Humans have left many 6 on the earth over time. Our rapid development has changed nature deeply. The world 7 not a game. We can’t cancel it and 8 over. We must learn to get along 9 nature. Let 10 remember to respect the natural world around us. After all, the earth is home to every living thing in human society. 05 cut, pour, build, save, grow, close, return, plant, protect, pollute, disappear The river which runs past our town was clean twenty years ago. Then, in 2005, a factory 1 in the town, and for ten years it 2 its waste straight into the water. The chemicals which went into the river 3 it badly, and soon most of the fish 4 . Nobody 5 the river in those years, because there seemed to be nothing left in it. In 2016 the government 6 the factory and told the town to clean the water. Since then the town 7 more than twenty thousand trees along the banks. The trees 8 fast, and now both banks are green again. The fishermen who left ten years ago 9 last spring, and last month a boy 10 a fish which had jumped out of the water and could not get back. The river is giving us a second chance, said an old fisherman. 06 benefit，admire，rapid，society，affect，solve，punish，protection，organisation，tourist Rainforests are the natural wonders of the earth. They give us clean air, food and medicine, so everyone can 1 from them. However, the 2 development of human 3 has done great harm to them. Every year, large areas of rainforest disappear, and many animals are in danger. Rubbish and logging also 4 the life of plants and animals there. Now, green 5 around the world are working hard for rainforest 6 . They teach 7 and local people to protect nature when they travel. People who cut down trees or hunt wild animals will be 8 . Let us 9 nature and keep the balance, or the harm will be hard to 10 . 07 human;  again;  permit;  disappear;  nature;  imagine;  drop;  admire;  mark;  balance In 2007, Alan Weisman wrote The World Without Us, which imagines a world where all human activities stop. Cars, boats and planes 1 , and streets, beaches and parks become empty. Without humans, animals increase in number. Traffic noise 2 , so animals can hear each other easily and form families. Tourists disappear from beaches, so sea animals are not troubled. Ecosystems 3 again, trees grow freely, and forests take back the space where 4 lived. The earth becomes a green world 5 . Also, pollution disappears, so 6 wonders hidden by smog appear again. But there are no people to 7 the amazing world. Throughout history, humans have left many 8 on the earth. Rapid development has made us care less for nature. We can’t wait till 9 becomes reality. We need to think more about getting along with nature, and 10 nature to have her way. 08 problem  third   mainly   balance  they  imagine  healthy  show  across  rubbish I am the Three-North Shelter Forest (三北防护林) Programme. I am a big tree-planting project in China. My job is 1 to stop deserts from growing and protect farmland in northern China. China is the 2 country to develop plantation forests in the world. This project 3 how planting trees can change the environment for the better. Before the Chinese government started this important project in 1978, this land had many 4 . The soil was too dry, and sandstorms (沙尘暴) often covered houses and roads. People also threw a lot of 5 everywhere, which made the bad environment even worse. You can never 6 what great trouble scientists and people had in finding better ways to grow trees in such dry places over the years. Thanks to 7 efforts, little by little, the land has become better for plants and animals. Trees help make the air cleaner, reduce strong winds, and keep the soil 8 for farming. They also play an important role in improving the ecological 9 . In this way, I help local farmers to live a better life because crops (庄稼) begin to grow and more jobs are created for them. I am covered with trees now, like a Great Green Wall 10 northern China. In the future, I believe that I will make northern China even greener and more beautiful. 09 ecosystem; wetlands; grasslands; rainforests; deserts; rivers; balance; influence; protect; species Our planet is made up of many different ecosystems. 1 are areas where the ground is covered with water for part of the year. 2 are large areas of land covered with grass, where many animals live. 3 are home to countless 4 of plants and animals. 5 are dry places with very little rain. 6 flow through the land and provide water for life. All these ecosystems are connected. They work together to maintain the 7 of nature. Human activities can 8 ecosystems in both positive and negative ways. It is our responsibility to 9 these natural environments. By doing so, we ensure that the 10 can continue to support life for future generations. 10 pollute  that  increase  drop  protect  nature give  live  bad  down  with  disappear Our environment is in danger. There are many problems 1 we need to solve. For example, air and water 2 is very serious. The number of wild animals is decreasing (减少) instead of 3 . We must realize the importance of 4 . First, we should stop cutting 5 forests. Trees are the homes of many animals that are losing their 6 places. Second, we need to 7 the environment. We should plant more trees and save water. Humans and nature depend on each other. We should learn to get along 8 nature. If we do nothing, many animals will 9 soon. The temperature will increase and the weather will be 10 . Let’s take action now to protect our planet. 学科网（北京）股份有限公司 $