Unit 4【刷题型】（选词填空精准练）-2026-2027学年八年级英语上册单元模块满分必刷题（新教材人教版）

2026-2027学年八年级英语上册单元模块满分必刷题（新教材人教版） Unit 4 Amazing Plants and Animals【刷题型】(选词填空精准练) 人与自然—动植物 基础篇 01 spend  hundred  plant   quick  tool  difference  because in build the Bamboo is one of nature’s most surprising 1 . Many people call this plant a tree but it is a kind of grass. It grows very 2 . There are more than 1,000 kinds of bamboo. Not all bamboo looks 3 same. Some bamboo plants are very thin, while others are not. This plant also comes in 4 colours. People can use bamboo to make many things such as hats and kitchen 5 . Because it is strong, people also use it to build 6 . Many Asian countries have used bamboo for 7 of years. 8 Africa, poor farmers use bamboo to carry water. These African countries need the cheap way to carry water 9 they have no money and their crops often die from lack of rain and water. Bamboo pipes (管子) help poor farmers bring water to their fields without 10 a lot of money. 【答案】 1．plants 2．quickly 3．the 4．different 5．tools 6．buildings 7．hundreds 8．In 9．because 10．spending 【导语】本文是一篇说明文，主要介绍了竹子的属性、生长特点、多样形态，以及竹子在不同地区的多种实用用途，展现了竹子的实用价值。 【详解】 1．句意：竹子是自然界最令人惊叹的植物之一。“one of+the+形容词最高级+可数名词复数”是固定结构，表示“最……的……之一”，此处指代竹子这类植物，需要用plant的复数形式。故填plants。 2．句意：它生长得非常快。此处需要用副词修饰动词grows，要把形容词quick变为副词形式quickly。故填quickly。 3．句意：不是所有的竹子看起来都一样。“the same”是固定搭配，意为“一样的、相同的”，此处需要填入定冠词the。故填the。 4．句意：这种植物也有不同的颜色。此处需要用形容词修饰名词colours，要把名词difference变为形容词形式different。故填different。 5．句意：人们可以用竹子制作很多东西，比如帽子和厨房工具。此处表示不止一件厨房工具，需要用tool的复数形式tools，和前面的hats并列。故填tools。 6．句意：因为它很坚固，人们也用它来建造建筑物。此处表示各类建筑，需要用动词build的名词复数形式buildings作build的宾语。故填buildings。 7．句意：很多亚洲国家使用竹子已有数百年的历史。“hundreds of years”是固定表达，意为“数百年”，表示模糊的数量概数。故填hundreds。 8．句意：在非洲，贫穷的农民用竹子运水。表示“在某个大洲”的范围前要使用介词in，句首首字母大写。故填In。 9．句意：这些非洲国家需要廉价的运水方式，因为他们没有钱，而且他们的庄稼经常因为缺雨缺水而枯死。后半句是前半句的原因，需要用引导原因状语从句的连词because。故填because。 10．句意：竹管帮助贫穷的农民不用花很多钱就能把水引到他们的田里。介词without后面需要接动名词形式，因此动词spend要变为spending。故填spending。 02 because  actual  use  thing  among  store  importance  connect  amazing  we In daily life, people, animals and plants are all connected. Bees are one of the best examples of this 1 . In warm weather, we see bees fly 2 the flowers. They carry pollen from one flower to another. This action helps different kinds of plants grow well. 3 , about 80 per cent of the plants in the world can’t grow without their work. There are many interesting 4 about bees. One thing is that they work hard together to make-their homes. They create honeycombs 5 honey. Another thing is that a bee 6 a dance to tell the others where and how far away the food is. Bees play a(n) 7 part in the ecosystem of our planet. Now some scientists are worried 8 the number of bees is dropping. They need 9 help. So we should do something useful to protect one of the 10 animals on the earth. For example, we can plant more trees because trees can give bees food and they are home to bees. 【答案】 1．connection 2．among 3．Actually 4．things 5．to store 6．uses 7．important 8．because 9．our 10．most amazing 【导语】本文主要介绍了蜜蜂在生态系统中的重要作用，讲述蜜蜂的习性，指出蜜蜂数量正在减少，呼吁人们保护蜜蜂。 【详解】 1．句意：蜜蜂就是这种联系最好的例子之一。空处位于this后面，应填单数名词。根据前一句“In daily life, people, animals and plants are all connected.”以及备选词汇可知，此处指蜜蜂是这种联系最好的例子之一。connect的名词形式connection意为“联系”，故填connection。 2．句意：天气暖和的时候，我们看见蜜蜂在花丛中飞舞。fly是不及物动词，不能直接接宾语，空处应填介词。根据“the flowers”以及备选词汇可知，此处指在花丛中飞舞。among表示“在……之中”，故填among。 3．句意：实际上，世界上大约80%的植物离不开蜜蜂的劳作。空处位于句首，修饰整个句子，应填副词。根据“about 80 per cent of the plants in the world can’t grow without their work”以及备选词汇可知，此处指实际上。actual的副词形式actually意为“实际上”，句首需首字母大写，故填Actually。 4．句意：关于蜜蜂，有许多有趣的事情。空处位于形容词interesting后面，且空前有many，应填复数名词。根据后文“One thing is that… Another thing is that…”以及备选词汇可知，此处指许多有趣的事情。thing意为“事情”，故填things。 5．句意：它们建造蜂巢用来储存蜂蜜。根据“They create honeycombs”以及备选词汇可知，此处指蜜蜂建造蜂巢用来储存蜂蜜，应用动词不定式表目的。store意为“储存”，故填to store。 6．句意：其二，蜜蜂会用舞蹈来告诉同伴食物的位置以及距离有多远。空处作从句的谓语，应填动词。根据“a dance”以及备选词汇可知，此处指使用舞蹈告诉同伴，use意为“使用”。本句描述客观事实用一般现在时，主语a bee是第三人称单数，故填uses。 7．句意：蜜蜂在地球生态系统中扮演重要角色。空处修饰名词part，应填形容词。根据“in the ecosystem of our planet”以及备选词汇可知，此处指蜜蜂在地球生态系统中扮演重要角色。important意为“重要的”，故填important。 8．句意：现在一些科学家很担忧，因为蜜蜂的数量正在减少。空处前后都是主谓结构完整的句子，应填连词连接。后半句“the number of bees is dropping”是前半句“Now some scientists are worried”的原因，故填表示原因的连词because。 9．句意：它们需要我们的帮助。空处修饰名词help，根据后一句“So we should do something useful…”以及备选词汇可知，此处指它们需要我们的帮助。形容词性物主代词our意为“我们的”，故填our。 10．句意：因此我们应该做些有益的事，保护地球上最神奇的动物之一。本句是one of the+形容词最高级+名词复数的结构，空处应填形容词最高级。根据全文语境以及备选词汇可知，此处指地球上最神奇的动物之一。amazing是多音节形容词，意为“神奇的”，其最高级在前面加most，故填most amazing。 03 forest,  colour,  feed,  because,  quick,  from,  same,  appear,  face,  safe Do you know why different animals or insects have their own 1 ? Because they can use different colours to keep themselves 2 . Some birds 3 on insects, but it’s not easy for them to catch locusts (蝗虫). Why? It is because locusts change the colours together with the change of the colours of the crops. When crops are green, locusts look green. When crops are brown, locusts change to the 4 colour as crops. Some other insects have to 5 only at night. It is because they have colours different 6 plants and birds can find them easily and eat them. If you study the animal life, you’ll find the main use of colour is to protect animals. Tigers, lions and other animals move quietly through 7 . The small animals cannot find them 8 they have the colours much like those of the trees and grass. In the sea, there’s a kind of fish with a soft body. It is not strong at all, but it can send out black liquid (液体) when it 9 danger. While the liquid spreads over, its enemies can’t find it. And it 10 swims away. That’s why we can still see it in the sea. 【答案】 1．colours 2．safe 3．feed 4．same 5．appear 6．from 7．forests 8．because 9．faces 10．quickly 【导语】本文是一篇说明文，介绍动物和昆虫依靠自身的颜色保护自己，举例讲解生物保护色的作用。 【详解】 1．句意：你知道为什么不同的动物或者昆虫拥有它们自己的颜色吗？根据后文反复提到“colours”并结合备选词可知，主语animals or insects是复数，表示多种颜色，因此colour需变为复数colours。 2．句意：因为它们可以利用不同的颜色来使自身保持安全。根据动物利用颜色保护自己的语境并结合备选词可知，固定搭配“keep sb.+形容词”表示“使某人处于某种状态”，safe表示“安全的”，符合语境。 3．句意：一些鸟以昆虫为食，但是它们不容易抓到蝗虫。根据鸟类以昆虫为食物的语境并结合备选词可知，固定短语feed on表示“以……为食”，符合语境，主语some birds为复数，一般现在时动词需用原形，应填feed。 4．句意：当庄稼变成棕色，蝗虫就变成和庄稼一样的颜色。根据蝗虫会随着庄稼改变自身颜色的语境并结合备选词可知，固定短语the same as意为“和……一样”，符合语境，因此填same。 5．句意：其他一些昆虫只能在夜间出现。根据上下文并结合备选词可知，这类昆虫颜色和植物不一样，白天容易被鸟儿捕食，只能夜里出来；have to后接动词原形，appear表示“出现”，符合语境。 6．句意：这是因为它们的颜色和植物不同，鸟类能轻易发现并吃掉它们。根据语境并结合备选词可知，固定搭配be different from表示“与……不同”，符合语境，应填from。 7．句意：老虎、狮子和其他动物安静地穿过森林。根据后文“like those of the trees and grass”并结合备选词可知，此处指有树木草木的环境，且表泛指，forests符合语境。 8．句意：小动物找不到它们，因为它们的颜色很像树木和草的颜色。根据上下文并结合备选词可知，前半句是结果，后半句解释原因，because可用来引导原因状语从句，符合语境。 9．句意：在海里有一种身体柔软的鱼。它一点也不强壮，但是当它面临危险的时候，会喷出黑色液体。根据语境并结合备选词可知，此处表示面临危险，主语it是第三人称单数，句子为一般现在时，动词需变为三单形式，faces符合语境。 10．句意：液体扩散开的时候，敌人找不到它，然后它快速地游走。根据语境并结合备选词可知，此处修饰动词swims away，需要用副词；quick的副词形式是quickly，表示“快速地”，符合语境。 培优篇 04 because, grow, have, main, in, enough , fast , famous , example , kind When winter comes, most plants lose their leaves. But bamboo does not. Bamboo is one of the 1 growing plants in the world. It can 2 60 cm or more every day. Even in cold winter, bamboo stands up well and grows. Chinese people see this as bamboo’s spirit. It is about being brave 3 to face any difficulties. Because of this, Chinese people love bamboo. Bamboo is very common in China. It 4 many uses in our daily life. People use bamboo to make many things such as chopsticks, baskets and even furniture. People also use bamboo shoots to cook many 5 of delicious food. Bamboo is also the pandas 6 food. Bamboo is very useful 7 art. 8 it is empty inside, it is a good choice for musical instruments. You can see bamboo in many 9 movies too. For 10 , in the movie Crouching Tiger, Hidden Dragon people stand and fight on bamboo. 【答案】 1．fastest 2．grow 3．enough 4．has 5．kinds 6．main 7．in 8．Because 9．famous 10．example 【导语】本文介绍了竹子生长速度、精神品质、日常生活用途以及在艺术、影视中的应用，赞美竹子顽强的品格与很高的实用价值。 【详解】 1．句意：竹子是世界上生长最快的植物之一。“one of the+形容词最高级+名词复数”为固定结构，表示“最……之一”，此处应用形容词的最高级；结合下文“It can ... 60 cm or more every day.”，此处表示竹子生长速度快，备选词fast符合语境，其最高级形式为fastest。 2．句意：它每天可以长60 厘米甚至更多。情态动词“can”后接动词原形；结合语境，此处表达竹子每日生长的长度，备选词grow符合语境。 3．句意：它代表足够勇敢，去面对任何困难。“形容词 + enough to do sth.”是固定结构，表示“足够……去做某事”；此处修饰形容词“brave”，要选用副词enough。 4．句意：它在我们日常生活中有很多用途。主语“It”是关键词，本句为一般现在时，主语是第三人称单数，谓语动词要变形；结合语境，此处表示“有”，备选词have符合语境，have的第三人称单数形式为has。 5．句意：人们还用竹笋烹饪许多种类的美食。“many”后接可数名词复数；many kinds of为固定短语，意为“许多种”，备选词kind符合语境，其复数形式为kinds。 6．句意：竹子也是大熊猫主要的食物。名词“food”是关键词，此处需要形容词修饰名词；结合语境，此处表达“主要的”，备选词main符合语境，main本身就是形容词，无需变形。 7．句意：竹子在艺术领域非常有用。“art”是关键词，此处需要介词构成介词短语；in art为固定搭配，表示“在艺术方面”，备选词in符合语境。 8．句意：因为它内部是空的，所以很适合制作乐器。前后两句是因果关系，后半句是原因；备选词because表示“因为”，位于句首首字母需要大写。 9．句意：你也可以在很多著名的电影里看到竹子。名词“movies”是关键词，此处需要形容词修饰名词；结合语境，此处表达“著名的”，备选词famous符合语境，famous本身就是形容词，无需变形。 10．句意：例如，在电影《卧虎藏龙》中，人们在竹子上打斗。for example固定短语，表示“例如”，用来举例说明，备选词example符合语境。 05 therefore  store  this  act  be  connect  important  grow  rain  eat The frog is an amazing creature (生物). They play an important role in our ecosystem. Many people know they help farmers by 1 insects in the fields. But do you know more about their 2 with nature? First, let's talk about their 3 . After 4 , some frogs usually appear in gardens. The moist soil (湿润的土壤) and clean water 5 perfect for frogs to lay eggs, as their tiny tadpoles need water to grow. In some places, people use bamboo baskets 6 food, just like how frogs find safe places to live. When we lose our homes, we may feel disappointed. So do frogs. Their homes are sometimes damaged by pollution or urban construction (城市建设). 7 , the number of frogs is getting smaller and smaller. It's hard to imagine a world without 8 little helpers. Scientists study frogs to understand the 9 of protecting our planet. Even a small 10 , like not polluting water, can act as a way to save them. Let's do our part to keep frogs and nature in balance! 【答案】 1．eating 2．connection 3．growth 4．rain/raining 5．are 6．to store 7．Therefore 8．these 9．importance 10．action 【导语】本文是一篇说明文。文章主要介绍了青蛙这种神奇的生物，讲述了青蛙在生态系统中的作用、青蛙的生长习性，现在青蛙栖息地遭到破坏数量减少，号召人们采取行动保护青蛙、保护地球。 【详解】 1．句意：很多人知道它们通过在田里吃昆虫来帮助农民。该处指“吃昆虫来帮助农民”，备选词eat符合题意；介词by（后接动名词），可知填eat的动名词eating。 2．句意：但是你知道更多关于它们和大自然之间的联系吗？该处指“它们和大自然之间的联系”，根据介词with，备选词connect符合题意，their后需跟名词，connect的名词形式为connection，在该句中为不可数名词。 3．句意：首先，让我们谈谈它们的生长。根据形容词性物主代词their，后面需要名词，后文讲青蛙产卵、蝌蚪生长，备选词grow需要变为名词growth（生长），为不可数名词。 4．句意：下雨之后，一些青蛙通常会出现在花园里。根据后文湿润的土壤，可知该处指“下雨之后”，介词after（后可接名词或动名词），备选词汇rain符合题意，该处可用名词rain（雨水），也可用动名词raining。 5．句意：湿润的土壤和干净的水对青蛙产卵来说是完美的环境。该句为系表结构，主语是The moist soil and clean water（复数），时态一般现在时，备选词be用are。 6．句意：在一些地方，人们用竹篮储存食物。该处指“储存食物”，备选词store符合题意，根据固定搭配use sth. to do sth.（用某物做某事），可知此处用不定式to store。 7．句意：因此，青蛙的数量正变得越来越少。前文讲青蛙家园被污染和城市建设破坏，后文是结果，备选词therefore符合题意，句首首字母大写，因此填Therefore。 8．句意：很难想象一个没有这些小帮手的世界。该处指“这些小帮手”，后面helpers是复数，备选词this需要变为复数形式these（这些）。 9．句意：科学家研究青蛙来理解保护我们星球的重要性。前文介绍了青蛙的益处，该处指“重要性”，“the+抽象名词+of”为固定搭配，因此该空填备选词important的名词形式importance（重要性）。 10．句意：甚至一个小小的行动，比如不污染水源，都可以作为拯救它们的一种方式。由“like not polluting water”可知该处指“小小的行动”，不定冠词a后面接单数名词，备选词act的名词为action（行动），符合题意。 06 message  sit  when  they  protect  however  metre  fall  through  famous The redwood (红杉) tree is the largest tree in the world. It can reach up to eight 1 in diameter (直径). The large redwood in California is 2 for having a large hole at the bottom. The hole is big enough for cars. The tree is up to 2,000 years old. Until now, thousands of people travel to see it each year. 3 , on Sunday the large redwood tree fell down during a storm. “But no one was hurt,” said a 4 on the internet. Many visitors took pictures while standing or 5 under the famous redwood tree. After hearing the news about the tree, some posted photos and messages on the internet about 6 memories. The large redwood tree 7 down! The storm was “just too much” for the tree. “It’s like a family member in my heart,” Ms Brown said. She said she was just 12 years old 8 her parents first took her to see the tree. She’s now an old school teacher. The hole in the redwood tree weakened (削弱) the tree over time. People made the hole in the 1880s to let people and cars pass 9 . This began with horses and later with cars. In the last few years, to 10 the tree, only people could walk through the hole. 【答案】 1．metres 2．famous 3．However 4．message 5．sitting 6．their 7．fell 8．when 9．through 10．protect 【导语】本文主要介绍加州一棵著名红杉树，它底部有大洞可供车辆通行，在一场暴风雨中轰然倒下，很多游客对此十分惋惜。 【详解】 1．句意：它的直径可达八米。“eight…in diameter”表示“直径八……”，备选词metre意为“米”，前面有数词eight，需要使用复数形式metres，其余单词不符合句意，故填metres。 2．句意：加州这棵巨大的红杉因底部有一个大洞而出名。“is…for”为固定搭配be famous for，意为“因……而出名”，备选词famous符合这个短语，其余单词无法构成该搭配，故填famous。 3． 句意：然而，在周日，这棵巨大的红杉在暴风雨中倒下了。本句和上文“成千上万游客前来参观”形成转折，备选词however意为“然而”，句首首字母大写，其余单词没有转折含义，故填However。 4． 句意：“但是没有人受伤。” 网上的一条消息说道。“a…on the internet”表示网上的一则消息，备选词message意为“信息、消息”，前面有a，用单数形式，其余单词不符合语境，故填message。 5．句意：许多游客站或坐在这棵著名的红杉树下拍照。“while standing or…under the tree”，or连接并列结构，要和standing形式保持一致，备选词sit的动名词是sitting，其余单词变形后不能满足并列结构要求，故填sitting。 6． 句意：听到这棵树的消息后，一些人在网上发布照片和关于他们回忆的留言。“…memories”表示“……的回忆”，此处需要形容词性物主代词修饰名词memories，备选词they对应的物主代词是their，意为“他们的”，其余单词不能修饰memories，故填their。 7．句意：这棵巨大的红杉树倒下了！fall down为固定搭配，意为“倒下”。树木倒下这件事发生在过去，使用一般过去时，备选词fall的过去式是fell，其余单词不符合时态与短语要求，故填fell。 8．句意：她说当父母第一次带她来看这棵树时，她只有 12 岁。本句是时间状语从句，备选词when意为“当……的时候”，引导时间状语从句，其余单词不能引导该从句，故填when。 9．句意：人们在 19 世纪 80 年代挖出这个洞，用来让人和车辆从中穿过。“pass…”是固定搭配pass through，意为“穿过”，备选词through符合短语，其余单词不能和 pass构成此搭配，故填through。 10．句意：在过去几年里，为了保护这棵树，只有行人可以穿过这个洞。to后接动词原形构成不定式表目的，备选词protect意为“保护”，符合语境，其余单词语义不通，故填protect。 07 them,  strongest,  that,  thousands,  take, grow,  healthy,  look,  under,  appear One of the most amazing trees in the world is known as the baobab. This kind of tree mainly 1 in South Africa and Australia. Sometimes, it is hard to tell what the name of a tree is because they 2 like the same as each other. But this is not a problem with the baobab for its 3 is quite different. The baobab is very wide at the base, so people often take shelter (阴凉) 4 it. And it is so strong and wide 5 it can hold a large group of people. The 6 tree in the world is over 1,835 years old now. People also call it the “giving tree”. People find the tree’s fruit 7 and delicious. People make porridge and drinks from 8 . The tree takes in water when it is wet. During dry seasons, they can store (储存) 9 of gallons of water. Sadly, in recent years, the baobab trees are dying because of climate (气候) change. Scientists are trying hard to 10 action to protect them. 【答案】 1．grows 2．look 3．appearance 4．under 5．that 6．strongest 7．healthy 8．them 9．thousands 10．take 【导语】本文是一篇说明文。文章主要介绍了猴面包树的分布地区、外形特征、用途以及当前面临的生存危机。 【详解】 1．句意：这种树主要生长在南非和澳大利亚。句子描述客观事实，用一般现在时；主语 This kind of tree 为单数，谓语动词用第三人称单数形式。此处是介绍猴面包树的主要生长区域，选词框中的动词grow表示“生长”，需变形为grows。 2．句意：有时很难说出树的名字，因为它们看起来彼此一样。此处从句主语是they，指代前文的树木，结合前半句“it is hard to tell what the name of a tree is”给出的“难以分辨树的品种”的前提语境，说明长得很像，且空后搭配like，所以应用look，构成固定短语look like表示“看起来像”。主语they为复数，谓语动词用原形。 3．句意：但对于猴面包树来说这不是问题，因为它的外形十分与众不同。its为形容词性物主代词，后接名词；后文紧接着描述“The baobab is very wide at the base”介绍猴面包树底部十分宽大的外形特点，对应此处要表达“外观、外形”的含义，appear为动词，其名词形式为appearance，表示“外形”。 4．句意：猴面包树基部很宽，所以人们常在树下乘凉。根据“take shelter”和语境可知，是在树“下面”乘凉，用介词under表示“在……下面”。 5．句意：它如此粗壮宽阔，以至于能容纳一大群人。空后是完整的句子，结合“so strong and wide”可知，此处考查固定句型so...that...“如此……以至于……”，引导结果状语从句。故填that。 6．句意：世界上最粗壮的树现在已有1835多岁了。in the world表示范围，要用形容词最高级，前文一直在描述猴面包树树干宽大结实的外形特点，方框中strongest符合语境。 7．句意：人们发现这种树的果实健康又美味。find sth.+形容词为固定结构，and连接并列形容词；后文介绍人们利用果实煮粥、制作饮品，说明这种果实可以食用，healthy表示“健康的”，和delicious并列形容果实，贴合语境。 8．句意：人们用它们做粥和饮料。介词from后用人称代词宾格，此处指代前文the tree’s fruit，用them。 9．句意：在旱季，它们能储存成千上万加仑的水。前文提到猴面包树在雨季吸收水分，本句说明它储存水量巨大，结合备选词，应用thousands of“数千的，成千上万的”来体现储水量之多。所以填thousands。 10．句意：科学家正努力采取行动保护它们。前文提到猴面包树因为气候变化正在不断死亡，这句话引出科学家的保护举措，take action是固定短语，意为“采取行动”；try to do sth.意为“努力做某事”，to后接动词原形。 08 alone  many  old  usual  dangerous  big  twenty  during  good  situation  hundred Amur tigers are interesting animals. They are the 1 cats in the world. A full-grown Amur tiger can be over 600 pounds. They live 2 . Tigers also have very good eyesight and hearing. Their eyesight is 3 better than humans’. Amur tigers live in the forests in the Russian Far East and Northeastern China. They have a thick yellow coat. It keeps them warm 4 the long, cold winters in the forest. Amur tigers 5 hunt at night. Sometimes these tigers travel 6 of kilometers to look for things to eat. They hunt small animals living in the forest. They also hunt smaller kinds of bears. A hungry Amur tiger can eat more than 50 pounds in one night. Today, Amur tigers are in 7 . The number of Amur tigers dropped fast at the beginning of the 78 century. Countries like Russia and China then began to protect these big cats. After that, the number of Amur tigers grew. Scientists believe there are about 540 Amur tigers living in the wild today. These big cats are still in a difficult 8 . We should try to save these tigers. If we try our 9 , the tigers may live in peace in the future. 【答案】 1．biggest 2．alone 3．much 4．during 5．usually 6．hundreds 7．danger 8．twentieth 9．situation 10．best 【导语】本文是一篇说明文。文章主要介绍了东北虎的体型特征、生活习性、栖息地以及目前的生存状况和保护情况。 【详解】 1．句意：它们是世界上体型最大的猫科动物。根据“They are the ... cats in the world.”以及后文“A full-grown Amur tiger can be over 600 pounds.”可知是在全世界范围内进行比较，要用形容词最高级；备选词“big”意为“大的”，其最高级“biggest”符合句意，故填biggest。 2．句意：它们独自生活。根据“They live ...”可知空格修饰动词live，需要副词；备选词“alone”意为“独自地”，表示东北虎独居的习性，符合句意，故填alone。 3．句意：它们的视力比人类好得多。根据“... better than humans’.”可知空格修饰比较级better；备选词“many”意为“许多”，其副词形式“much”可以修饰形容词比较级，表示“……得多”，符合句意，故填much。 4．句意：厚厚的皮毛能让它们在森林漫长寒冷的冬季保持温暖。根据“It keeps them warm ... the long, cold winters”可知是在漫长寒冬这段时间里；备选词“during”意为“在……期间”，符合语境，故填during。 5．句意：东北虎通常在夜间捕猎。根据“Amur tigers ... hunt at night.”可知空格修饰动词hunt，需要副词；备选词“usual”意为“通常的”，其副词形式“usually”表示“通常”，用来描述东北虎的捕猎习惯，符合句意，故填usually。 6．句意：有时这些老虎会跋涉数百公里寻找食物。根据“... of kilometers”可知此处表示约数；备选词“hundred”意为“百”，固定搭配“hundreds of”表示“数百的”，符合句意，故填hundreds。 7．句意：如今，东北虎处于危险之中。根据“are in ...”，固定短语“in danger”意为“处于危险中”；备选词“dangerous”意为“危险的”，名词形式“danger”符合短语搭配，故填danger。 8．句意：在二十世纪初，东北虎的数量快速下降。根据“the beginning of the ... century”表示“第几世纪”要用序数词；备选词“twenty”意为“二十”，其序数词“twentieth”表示“第二十”，符合句意，故填twentieth。 9．句意：这些大型猫科动物仍然处境艰难。根据“in a difficult ...”可知空格处需要名词；备选词“situation”意为“情况，处境”，“a difficult situation”表示艰难的处境，符合句意，故填situation。 10．句意：如果我们尽最大努力，老虎未来或许可以安宁地生活。根据“try our ...”，固定搭配“try one’s best”意为“尽某人最大努力”；备选词“good”意为“好的”，其最高级“best”符合短语，故填best。 09 guess  they  about  whole  much  kind  must  then  kill  change Millions of years ago, dinosaurs (恐龙) controlled the earth. And there were different 1 of dinosaurs on the earth. But later on, there weren’t any dinosaurs. What happened to 2 ? In the days of dinosaurs, the 3 earth was warm and wet. There were many green forests. But the climate on the earth had always been 4 all the time. When the earth became cold and dry, the forests died. 5 dinosaurs could not find enough food to eat. Some scientists think this 6 be one reason why dinosaurs died out. What’s another reason? We can make a 7 . New kinds of animals came to the earth. Some were bigger, stronger and faster. They 8 all the dinosaurs. There may be other reasons that we do not know 9 . Each year, people find some dinosaur footprints (脚印) , bones and eggs. Scientists are trying to tell us 10 about dinosaurs. 【答案】 1．kinds 2．them 3．whole 4．changing 5．Then 6．must 7．guess 8．killed 9．about 10．more 【导语】本文是一篇说明文，介绍了恐龙灭绝的可能原因：地球气候一直变化，变冷变干后森林死亡，恐龙找不到足够的食物；此外，更强壮的新动物出现并杀死了所有恐龙；科学家们正在努力研究，告诉我们更多关于恐龙的信息。 【详解】 1．句意：地球上有不同种类的恐龙。根据“different...of dinosaurs”及备选词汇可知，这里指的是不同种类的恐龙；different kinds of表示“不同种类的”，kind应用复数形式kinds。 2．句意：但后来，地球上没有任何恐龙了。它们发生了什么事？根据“What happened to...”及备选词汇可知，这里指的是恐龙发生了什么；to是介词，后接人称代词宾格，they的宾格形式为them。 3．句意：在恐龙存在的日子里，整个地球温暖湿润。根据“the...earth was warm and wet”及备选词汇可知，这里指的是整个地球；whole表示“整个的”，是形容词，作定语修饰earth。 4．句意：但地球上的气候一直在变化。根据“the climate...had always been...all the time”及备选词汇可知，这里指的是气候一直在变化；空格前有助动词been，应用change的现在分词形式changing，构成进行时结构。 5．句意：然后恐龙找不到足够的食物吃。根据“When the earth became cold and dry, the forests died.”及备选词汇可知，森林死后，恐龙就找不到足够的食物；then表示“然后”，位于句首，首字母大写。 6．句意：一些科学家认为这一定是恐龙灭绝的原因之一。根据“this...be one reason why dinosaurs died out”及备选词汇可知，这里表示肯定的推测；must表示“一定”，后接动词原形。 7．句意：我们可以做一个猜测。根据“What’s another reason? We can make a...”及备选词汇可知，这里指的是做一个猜测；guess表示“猜测”，是名词，空格前有不定冠词a，用单数形式。 8．句意：它们杀死了所有的恐龙。根据“Some were bigger, stronger and faster. They...all the dinosaurs”及备选词汇可知，这里指的是新动物杀死了所有恐龙；kill表示“杀死”，是动词；描述过去发生的事，用一般过去时，kill的过去式为killed。 9．句意：可能还有其他我们并不了解的原因。根据“reasons that we do not know...”及备选词汇可知，这里指的是我们并不了解的原因；know about表示“了解”，是固定短语。 10．句意：科学家们正努力告诉我们更多关于恐龙的信息。根据“tell us...about dinosaurs”及备选词汇可知，这里指的是告诉我们更多信息；much的比较级为more。 10 without    home   warm   visit   return   good   live   trash   sick   little Coral reefs (珊瑚礁) are like underwater cities. They cover less than 1% of the ocean floor, but they are 1 to about 25% of all sea animals. Coral reefs are also beautiful places for people to 2 . Coral reefs are built by tiny animals called coral polyps (珊瑚虫). These polyps have a special partner—algae (藻类) that 3 inside them. The algae give the coral food and color. In 4 , the coral gives the algae a safe home. But coral reefs are in big trouble today. The ocean is getting 5 because of climate change. When the water gets too warm, the algae leave the coral. This makes the coral 6 . 7 the algae, the coral turns white and may die. This is called coral bleaching. Many people also throw 8 into the sea. They also use chemicals that hurt the coral. And some people break coral reefs when they go fishing with dynamite (炸药). We can help save coral reefs. We can use 9 plastic and save energy at home. Scientists are also growing new coral in labs. If we all do a little, coral reefs can have a 10 future. 【答案】 1．home 2．visit 3．live 4．return 5．warmer 6．sick 7．Without 8．trash 9．less 10．good 【导语】本文是一篇说明文。文章主要介绍了珊瑚礁的重要性、构成原理、当前面临的威胁以及人类可以采取的保护措施。 【详解】 1．句意：它们只占海底面积的不到1%，却是大约25%海洋生物的家园。根据语境，珊瑚礁给海洋动物提供生存家园，固定搭配be home to表示 “是……的栖息地”，故填home。 2．句意：珊瑚礁也是人们参观的美丽地方。前面定语是beautiful（美丽的），指向观光价值，美丽的地方供人游览，方框内选visit，不定式作后置定语修饰places，to后面必须接动词原形visit。 3．句意：这些珊瑚虫有一个特殊的伙伴——生活在它们体内的藻类。破折号后是解释algae与polyps的关系，生物学常识是虫黄藻共生在珊瑚虫组织内，live inside正是“生活在……内部”，全文是一般现在时，主语复数，用动词原形live。 4．句意：作为回报，珊瑚给藻类一个安全的家。空格前是In，后面是逗号隔开的主句，说明要填一个名词，与In构成固定短语作状语。前一句“藻类给珊瑚食物和颜色”，后一句“珊瑚给藻类安全的家”——两句是对等互惠关系，需要一个表达“反过来、作为回报”的连接短语。in return正好承担这个逻辑。故填return。 5．句意：由于气候变化，海洋正在变暖。根据下文“When the water gets too warm…”，方框内选warm，get+形容词比较级是英语表达“逐渐变得……”的结构，而且与后文“too warm”形成递进——先变暖，再变得过热。所以不能填原级 warm，故填比较级warmer。 6．句意：这使得珊瑚生病。This指代前一句“藻类离开珊瑚”——藻类是珊瑚的共生伙伴，一旦离开，珊瑚失去食物和颜色供应，这是一个负面结果。方框内形容词表示负面的有sick和little。little（小的）：尺寸变化与藻类离开无关；sick（生病的）：负面，珊瑚因失去共生藻而生理受损，符合语境。故填sick。 7．句意：没有藻类，珊瑚会变白并可能死亡。空格在句首，后直接接名词the algae，需要一个介词引导条件 / 伴随状语。方框内唯一的介词是without，句首字母大写，故填Without。 8．句意：许多人也把垃圾扔进海里。本段讲珊瑚礁的人为威胁，“人们往海里扔”，最自然的宾语是trash（垃圾），即海洋塑料污染。throw trash是常用动宾搭配。故填trash。 9．句意：我们可以少用塑料并在家里节约能源。“use + 修饰语 + plastic”；plastic是不可数名词，空格需要一个能修饰不可数名词的限定词/形容词。方框内剩余仅有little恰好可以修饰不可数名词，and连接的“save energy”是“减少消耗”，并列的“use…plastic”也应是“更少用塑料”，是与现状相比的比较级，所以little变为less。 10．句意：如果我们都尽一点力，珊瑚礁可以有一个美好的未来。修饰名词future，需填形容词，方框内还剩good，意为“美好的”，符合积极展望。故填good。 学科网（北京）股份有限公司 $ 2026-2027学年八年级英语上册单元模块满分必刷题（新教材人教版） Unit 4 Amazing Plants and Animals【刷题型】(选词填空精准练) 人与自然—动植物 基础篇 01 spend  hundred  plant   quick  tool  difference  because in build the Bamboo is one of nature’s most surprising 1 . Many people call this plant a tree but it is a kind of grass. It grows very 2 . There are more than 1,000 kinds of bamboo. Not all bamboo looks 3 same. Some bamboo plants are very thin, while others are not. This plant also comes in 4 colours. People can use bamboo to make many things such as hats and kitchen 5 . Because it is strong, people also use it to build 6 . Many Asian countries have used bamboo for 7 of years. 8 Africa, poor farmers use bamboo to carry water. These African countries need the cheap way to carry water 9 they have no money and their crops often die from lack of rain and water. Bamboo pipes (管子) help poor farmers bring water to their fields without 10 a lot of money. 02 because  actual  use  thing  among  store  importance  connect  amazing  we In daily life, people, animals and plants are all connected. Bees are one of the best examples of this 1 . In warm weather, we see bees fly 2 the flowers. They carry pollen from one flower to another. This action helps different kinds of plants grow well. 3 , about 80 per cent of the plants in the world can’t grow without their work. There are many interesting 4 about bees. One thing is that they work hard together to make-their homes. They create honeycombs 5 honey. Another thing is that a bee 6 a dance to tell the others where and how far away the food is. Bees play a(n) 7 part in the ecosystem of our planet. Now some scientists are worried 8 the number of bees is dropping. They need 9 help. So we should do something useful to protect one of the 10 animals on the earth. For example, we can plant more trees because trees can give bees food and they are home to bees. 03 forest,  colour,  feed,  because,  quick,  from,  same,  appear,  face,  safe Do you know why different animals or insects have their own 1 ? Because they can use different colours to keep themselves 2 . Some birds 3 on insects, but it’s not easy for them to catch locusts (蝗虫). Why? It is because locusts change the colours together with the change of the colours of the crops. When crops are green, locusts look green. When crops are brown, locusts change to the 4 colour as crops. Some other insects have to 5 only at night. It is because they have colours different 6 plants and birds can find them easily and eat them. If you study the animal life, you’ll find the main use of colour is to protect animals. Tigers, lions and other animals move quietly through 7 . The small animals cannot find them 8 they have the colours much like those of the trees and grass. In the sea, there’s a kind of fish with a soft body. It is not strong at all, but it can send out black liquid (液体) when it 9 danger. While the liquid spreads over, its enemies can’t find it. And it 10 swims away. That’s why we can still see it in the sea. 培优篇 04 because, grow, have, main, in, enough , fast , famous , example , kind When winter comes, most plants lose their leaves. But bamboo does not. Bamboo is one of the 1 growing plants in the world. It can 2 60 cm or more every day. Even in cold winter, bamboo stands up well and grows. Chinese people see this as bamboo’s spirit. It is about being brave 3 to face any difficulties. Because of this, Chinese people love bamboo. Bamboo is very common in China. It 4 many uses in our daily life. People use bamboo to make many things such as chopsticks, baskets and even furniture. People also use bamboo shoots to cook many 5 of delicious food. Bamboo is also the pandas 6 food. Bamboo is very useful 7 art. 8 it is empty inside, it is a good choice for musical instruments. You can see bamboo in many 9 movies too. For 10 , in the movie Crouching Tiger, Hidden Dragon people stand and fight on bamboo. 05 therefore  store  this  act  be  connect  important  grow  rain  eat The frog is an amazing creature (生物). They play an important role in our ecosystem. Many people know they help farmers by 1 insects in the fields. But do you know more about their 2 with nature? First, let's talk about their 3 . After 4 , some frogs usually appear in gardens. The moist soil (湿润的土壤) and clean water 5 perfect for frogs to lay eggs, as their tiny tadpoles need water to grow. In some places, people use bamboo baskets 6 food, just like how frogs find safe places to live. When we lose our homes, we may feel disappointed. So do frogs. Their homes are sometimes damaged by pollution or urban construction (城市建设). 7 , the number of frogs is getting smaller and smaller. It's hard to imagine a world without 8 little helpers. Scientists study frogs to understand the 9 of protecting our planet. Even a small 10 , like not polluting water, can act as a way to save them. Let's do our part to keep frogs and nature in balance! 06 message  sit  when  they  protect  however  metre  fall  through  famous The redwood (红杉) tree is the largest tree in the world. It can reach up to eight 1 in diameter (直径). The large redwood in California is 2 for having a large hole at the bottom. The hole is big enough for cars. The tree is up to 2,000 years old. Until now, thousands of people travel to see it each year. 3 , on Sunday the large redwood tree fell down during a storm. “But no one was hurt,” said a 4 on the internet. Many visitors took pictures while standing or 5 under the famous redwood tree. After hearing the news about the tree, some posted photos and messages on the internet about 6 memories. The large redwood tree 7 down! The storm was “just too much” for the tree. “It’s like a family member in my heart,” Ms Brown said. She said she was just 12 years old 8 her parents first took her to see the tree. She’s now an old school teacher. The hole in the redwood tree weakened (削弱) the tree over time. People made the hole in the 1880s to let people and cars pass 9 . This began with horses and later with cars. In the last few years, to 10 the tree, only people could walk through the hole. 07 them,  strongest,  that,  thousands,  take, grow,  healthy,  look,  under,  appear One of the most amazing trees in the world is known as the baobab. This kind of tree mainly 1 in South Africa and Australia. Sometimes, it is hard to tell what the name of a tree is because they 2 like the same as each other. But this is not a problem with the baobab for its 3 is quite different. The baobab is very wide at the base, so people often take shelter (阴凉) 4 it. And it is so strong and wide 5 it can hold a large group of people. The 6 tree in the world is over 1,835 years old now. People also call it the “giving tree”. People find the tree’s fruit 7 and delicious. People make porridge and drinks from 8 . The tree takes in water when it is wet. During dry seasons, they can store (储存) 9 of gallons of water. Sadly, in recent years, the baobab trees are dying because of climate (气候) change. Scientists are trying hard to 10 action to protect them. 08 alone  many  old  usual  dangerous  big  twenty  during  good  situation  hundred Amur tigers are interesting animals. They are the 1 cats in the world. A full-grown Amur tiger can be over 600 pounds. They live 2 . Tigers also have very good eyesight and hearing. Their eyesight is 3 better than humans’. Amur tigers live in the forests in the Russian Far East and Northeastern China. They have a thick yellow coat. It keeps them warm 4 the long, cold winters in the forest. Amur tigers 5 hunt at night. Sometimes these tigers travel 6 of kilometers to look for things to eat. They hunt small animals living in the forest. They also hunt smaller kinds of bears. A hungry Amur tiger can eat more than 50 pounds in one night. Today, Amur tigers are in 7 . The number of Amur tigers dropped fast at the beginning of the 78 century. Countries like Russia and China then began to protect these big cats. After that, the number of Amur tigers grew. Scientists believe there are about 540 Amur tigers living in the wild today. These big cats are still in a difficult 8 . We should try to save these tigers. If we try our 9 , the tigers may live in peace in the future. 09 guess  they  about  whole  much  kind  must  then  kill  change Millions of years ago, dinosaurs (恐龙) controlled the earth. And there were different 1 of dinosaurs on the earth. But later on, there weren’t any dinosaurs. What happened to 2 ? In the days of dinosaurs, the 3 earth was warm and wet. There were many green forests. But the climate on the earth had always been 4 all the time. When the earth became cold and dry, the forests died. 5 dinosaurs could not find enough food to eat. Some scientists think this 6 be one reason why dinosaurs died out. What’s another reason? We can make a 7 . New kinds of animals came to the earth. Some were bigger, stronger and faster. They 8 all the dinosaurs. There may be other reasons that we do not know 9 . Each year, people find some dinosaur footprints (脚印) , bones and eggs. Scientists are trying to tell us 10 about dinosaurs. 10 without    home   warm   visit   return   good   live   trash   sick   little Coral reefs (珊瑚礁) are like underwater cities. They cover less than 1% of the ocean floor, but they are 1 to about 25% of all sea animals. Coral reefs are also beautiful places for people to 2 . Coral reefs are built by tiny animals called coral polyps (珊瑚虫). These polyps have a special partner—algae (藻类) that 3 inside them. The algae give the coral food and color. In 4 , the coral gives the algae a safe home. But coral reefs are in big trouble today. The ocean is getting 5 because of climate change. When the water gets too warm, the algae leave the coral. This makes the coral 6 . 7 the algae, the coral turns white and may die. This is called coral bleaching. Many people also throw 8 into the sea. They also use chemicals that hurt the coral. And some people break coral reefs when they go fishing with dynamite (炸药). We can help save coral reefs. We can use 9 plastic and save energy at home. Scientists are also growing new coral in labs. If we all do a little, coral reefs can have a 10 future. 学科网（北京）股份有限公司 $