Unit 5 Looking into nature 单元话题（探索自然）语法填空进阶练12篇-2025-2026学年八年级英语下册重难点讲练全攻略（外研版）

**基本信息** 聚焦“探索自然”主题，分基础、进阶、综合三层12篇语法填空，以分层语篇承载语法知识，培养语言能力与思维品质。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |基础入门训练|4篇|基础词形变化（名词复数、动词时态、代词等）|单一语法点在简单自然话题（深海、植物声音）中的直接应用| |进阶拓展训练|4篇|复杂语境语法（比较级、连词、介词等）|多语法点在跨文化自然内容（食物传播、瓢虫、珠峰）中的融合运用| |能力综合实践|4篇|综合语篇应用（长难句、时态语态、词义辨析）|语法知识在科学探究类语篇（珠峰生长、真菌、动物智能）中的高阶迁移|

2025-2026学年一线教师制作新教材英语期末复习系列资料，名师遴选！ 2025-2026学年一线教师制作新教材英语期末复习系列资料，名师遴选！ 学校:___________姓名：___________班级：___________考号：___________ Unit 5 Looking into nature 单元话题（探索自然）语法填空进阶练12篇 说明：此专题分三个难度层次，基础入门训练<进阶拓展训练< 能力综合实践，老师根据学生实际情况进行针对性难度训练。 基础入门训练4篇 The deep sea is one of the most amazing and least known places on Earth. The Mariana Trench is the 1 (deep) point in the world’s oceans, about 11,000 2 (metre) below sea level. Many countries are 3 (research) the deep sea. People’s curiosity (好奇心) about the unknown world leads 4 (they) to keep exploring. In 2020, China’s manned (载人的) submersible Fendouzhe 5 (dive) to the bottom of the trench and 6 (film) the deep-sea environment. Life in the deep sea is special and strange. Many deep-sea animals are large and 7 (usual). Some can even make their own light. The famous Titanic lies 8 (quiet) about 3,800 metres under the water. However, the deep sea is in danger. We can even find rubbish at the greatest depths. It is 9 (harm) to sea life. It’s time for us 10 (take) action and protect our oceans. 【答案】 1．deepest 2．metres 3．researching 4．them 5．dove 6．filmed 7．unusual 8．quietly 9．harmful 10．to take 【导语】本文介绍了马里亚纳海沟的深度、深海探索与生物，指出深海受垃圾威胁，呼吁采取行动保护海洋。 1．句意：马里亚纳海沟是世界海洋中最深的点，大约在海平面以下11000 米处。由定冠词“the”及范围“in the world’s oceans”可知，此处需用deep的最高级deepest。 2．句意：马里亚纳海沟是世界海洋中最深的点，大约在海平面以下11000 米处。“11,000”后接名词复数metres。 3．句意：许多国家正在研究深海。空处位于“are”之后，使用现在分词researching，一起构成现在进行时。 4．句意：人们对未知世界的好奇心引导他们不断去探索。空处位于动词“leads”之后，需使用宾格them。 5．句意：2020年，中国载人潜水器“奋斗者”号下潜到海沟底部，并拍摄了深海环境。由“In 2020”可知，使用一般过去时，dive的过去式为dove。 6．句意：2020年，中国载人潜水器“奋斗者”号下潜到海沟底部，并拍摄了深海环境。此处“and”连接并列谓语，与前面的dove时态一致，需用film的过去式filmed。 7．句意：许多深海动物体型巨大且不寻常。并列连词and连接两个形容词，根据语境及后文“能自己发光”可知，空处应使用unusual“不寻常的”。 8．句意：著名的泰坦尼克号静静地躺在约3800米的水下。空处应使用quiet的副词形式quietly，修饰动词lies。 9．句意：这对海洋生物是有害的。be harmful to“对……有害”，固定搭配，应使用harm的形容词形式harmful。 10．句意：是我们采取行动保护我们海洋的时候了。 It’s time for sb. to do sth.“是某人做某事的时候了”，固定搭配，应使用动词不定式to take。 Do you believe a rose plant says, “I’m thirsty!” or a tree shouts, “My arms hurt? Maybe you will say this could only happen in some 1 (children) stories. In fact, plants are not always silent. So far, a recent study 2 (find) plants shout when they are in need of water or having their stems cut. “Even in a quiet field, there are 3 (actual) some sounds that carry information (信息). However, the pitch (音高) is too high for people 4 (hear),” said a teacher from Tel Aviv University. The researchers used microphones to record some tomato plants and found that stressed plants send out 5 (many) sounds than unstressed plants. “When tomatoes are not stressed at all, they are very quiet.” The teacher said that they also developed a machine to tell the differences 6 thirsty plants and cut plants. The result shows that 7 the causes of stress change, they shout differently. After 8 team recorded many kinds of other plants, they found that many plants like corn, wheat and grape plants send out sounds when they are under stress, too. “There is a possibility that a lot of talk is happening,” Professor Hadany said. “Because other 9 (plant) may hear the call of the stressed plants.” Sound recordings of plants could bring humans lots of advantages especially (尤其) in farming. For example, people will make sure 10 corn is getting enough water or not, or where water is needed most. 【答案】 1．children’s 2．has found 3．actually 4．to hear 5．more 6．between 7．when/as 8．the 9．plants 10．whether 【导语】本文介绍了一项最新研究，揭示了植物在缺水或茎被切断时会发出声音信号，且不同压力下的植物发声存在差异，这一发现对农业领域具有重要意义。 1．句意：也许你会说这只会发生在一些儿童故事里。stories是名词，前面需要用名词所有格或形容词修饰；children的复数名词所有格形式为children’s，表示“儿童的”，符合“儿童故事”的语境。 2．句意：到目前为止，一项近期研究发现植物在缺水或茎被切断时会发出声音。时间状语So far是现在完成时的标志，主语a recent study是单数，用has，find的过去分词为found。 3．句意：实际上，即使在安静的田地里，也有一些声音传递着信息。此处需要副词修饰整个句子 there are...，actual的副词形式为actually，表示“实际上、事实上”。 4．句意：然而，音高太高，人类听不见。too...to do sth.是固定结构，表示“太……而不能做某事”，因此hear需变为不定式形式to hear。 5．句意：研究人员发现，受压力的植物比未受压力的植物发出的声音更多。句中出现 than，是比较级的标志；many的比较级为more，表示“更多的”。 6．句意：这位老师说，他们还研发了一种机器来区分缺水植物和被切断茎的植物。between…and…是固定搭配，意为“在……和……之间”，符合“区分两种植物”的语境，故填between。 7．句意：结果表明，随着压力的原因发生变化，植物发出的声音也不同。此处表示“当……时/随着……”，引导时间状语从句，用连词when或as均可。 8．句意：在该团队记录了多种其他植物之后，他们发现玉米、小麦和葡萄等植物在受到压力时也会发出声音。此处特指研究的那个团队，用定冠词the修饰team，表示特指。 9．句意：因为其他植物可能会听到受压力植物的信号。other后接可数名词复数，plant的复数形式为plants。 10．句意：例如，人们可以确定玉米是否得到了足够的水分，或者哪里最需要水。whether…or not 是固定搭配，意为“是否”，符合“确定玉米是否有足够水分”的语境。 阅读下面短文，在空白处填入一个适当的词或几个词，或填入括号中所给词的正确形式。 Nature is wonderful. It is regarded as one of 1 (good) teachers. It 2 (teach) us a lot and we are born to learn from it to solve problems. For example, scientists used what they saw in nature 3 (improve) our way of travelling. In the days of high-speed train research and development, scientists were once faced with 4 noise problem. This was because the trains pushed air through tunnels at high speeds. So, 5 a train came out of a tunnel, it could be very, very noisy. However, kingfisher birds hardly make a sound when they get into lakes or 6 (river). Engineers got a clever idea. They changed the front of the trains to match the shape of the kingfisher. Then the air could 7 (easy) pass over the trains. The problem 8 (solve)! The kingfisher birds’ example is just one that we learned from nature. Scientists study the smart models that nature can offer. Then they use 9 (they) wisdom and imagination to design new products. Nature provides us 10 endless possibilities to find wonderful ways to improve our lives. Learning from nature knows no bounds (永无止境)！ 【答案】 1．the best 2．teaches 3．to improve 4．a 5．when 6．rivers 7．easily 8．was solved 9．their 10．with 【导语】本文主要介绍了以翠鸟启发高速列车降噪设计为例，说明大自然是人类的灵感源泉，向自然学习永无止境。 1．句意：它被认为是最好的老师之一。句中“one of…teachers.”提示，“one of +the+形容词最高级+复数名词”表示“最……之一”，固定结构，所以good要变为最高级best，因此填the best。 2．句意：它教会我们很多东西，而我们生来就懂得向它学习、解决问题。主语“It”指代前文“自然”，句子为一般现在时， teach“教” ，动词，用第三人称单数形式teaches。 3．句意：例如，科学家们利用他们在自然界中观察到的现象，改进了我们的出行方式。句中“used what they saw in nature…our way”提示，use sth. to do sth.表示 “用某物做某事”，后接动词不定式，improve“改进，提高”，动词，所以这里用不定式to improve。 4．句意：在高速列车的研发阶段，科学家们曾一度面临噪音难题。problem“问题” ，可数名词单数，此处表示“一个噪音问题”，noise以辅音音素开头，用不定冠词a。 5．句意：因此，当列车驶出隧道时，会发出非常非常大的噪音。此处引导时间状语从句，表示“当火车驶出隧道时”，用 when“当……时候”。 6．句意：然而，翠鸟扎入湖泊或河流时，却几乎不会发出任何声响。or连接并列成分，空格前“lakes”为复数，因此 river也要用复数形式 rivers，表示泛指。 7．句意：然后空气就能顺畅地从列车表面流过。此处需用副词修饰动词pass，easy的副词形式为easily，表示“容易地”。 8．句意：问题也迎刃而解了！problem和solve之间是被动关系，且事件发生在过去，用一般过去时的被动语态，结构为“was/were+过去分词”，主语是单数，solve“解决”，动词，过去分词为solved，所以填was solved。 9．句意：然后用他们的智慧与想象力设计出新的产品。此处修饰名词wisdom，要用形容词性物主代词，they的形容词性物主代词是their。 10．句意：大自然为我们提供了无穷无尽的可能性，让我们能找到改善生活的绝妙方法。句中“provides us…endless possibilities”提示，“provide sb. with sth.”表示 “为某人提供某物”，固定搭配。 阅读下面短文，根据语境或所给单词的提示，在每个空格内填入一个恰当的词，要求所填的词意义准确、形式正确，使短文意思完整、行文连贯。 Do you know the largest nature park in China? It is Sanjiangyuan National Park on the Qinghai-Xizang Plateau (青藏高原) .“Sanjiangyuan” 1 (mean) the source of China’s three great rivers the Yangtze River, Yellow River and Lancang River. The Yangtze River is the 2 (long) of the three. Sanjiangyuan is famous as the Water Tower of China or even Asia. There 3 (be) lots of rivers, lakes, and wetlands. People living around all depend on rich natural resources (资源) of it. It is important 4 our life. However, due to the global warming, the place was once in great 5 (dangerous). Life there was also much 6 (hard) for both animals and humans than that in other places. To stop things from 7 (get) worse, our government has taken many ways, for example, building Sanjiangyuan National Park. Many people joined the environmental protection club. It advised the members to start a WeChat group and invite other people to join in. This was 8 great idea. It allowed more and more people to meet each other online 9 talk about how to protect the environment. Now, people there are living in peace with nature. Our country is trying its best to make Sanjiangyuan National Park one of the most famous 10 (park) all over the world. I believe in the future the park will be a window to show Chinese natural beauty to the outside. 【答案】 1．means 2．longest 3．are 4．to 5．danger 6．harder 7．getting 8．a 9．and 10．parks 【导语】本文介绍了中国三江源国家公园，讲述了其地理意义、生态重要性、曾经面临的危机，以及政府和民众为保护环境所采取的措施与未来展望。 1．句意：“三江源”意为中国三大河流——长江、黄河和澜沧江的源头。句子描述客观事实，用一般现在时，主语“Sanjiangyuan”是单数，mean的第三人称单数形式是means。 2．句意：长江是三条中最长的。“of the three”提示用最高级，long的最高级是longest。 3．句意：这里有许多河流、湖泊和湿地。“there be”句型遵循就近原则，靠近be动词的lots of rivers是复数，句子为一般现在时。 4．句意：它对我们的生活至关重要。“It is important to sb./sth.”是固定结构，表示“对……重要”，故填to。 5．句意：然而，由于全球变暖，这个地方曾处于极大的危险之中。“in great danger”是固定搭配，表示“处于极大危险中”，dangerous的名词形式是danger。 6．句意：那里的生活对动物和人类来说，也比其他地方艰难得多。“than”是比较级的标志，hard的比较级是harder。 7．句意：为了阻止情况变得更糟。“stop…from doing sth.”是固定搭配，表示“阻止……做某事”，get的动名词形式是getting。 8．句意：这是一个好主意。“great idea”是单数可数名词，以辅音音素开头，用不定冠词a。 9．句意：它让越来越多的人在网上见面，并讨论如何保护环境。“meet each other online”和“talk about…”是并列动作，用连词and连接。 10．句意：我国正尽力使三江源国家公园成为世界上最著名的公园之一。“one of the + 形容词最高级 + 复数名词”是固定结构，表示“最……之一”，park的复数形式是parks。 进阶拓展训练4篇 阅读下面的短文，在空白处填入一个恰当的单词或者括号内单词的正确形式（每空不限填一词） When cultures meet, not just their language or clothing may be different. Often their food will be 1 (great) different too. People on both sides can discover a number of new 2 (chance) for trading (贸易). This text tells how some common food plants spread around the world. As early as 5,000 BC, people traded potatoes in South America 3 a valuable type of food. They took them to Europe in the 4 (sixteen) century and their use soon spread across it. Tea drinking started in China. By the early 1600s, traders had begun to ship tea from China to Europe. Tea drinking soon 5 (become) fashionable there but because of its high price, it was still a drink for the wealthy. Sugar cane (甘蔗) was first used to make 6 kind of sweet juice over 8,000 years ago on the island of New Guinea. Its use soon spread across Southeast Asia and then to 7 (wide) world. People used cocoa 8 (produce) a cold, spicy drink in Central America over 3,000 years ago. The Europeans brought it back with 9 (they) in the 1520s and added sugar to make the sweet, hot drink today. 10 it is expensive, many people love it. 【答案】 1．greatly 2．chances 3．as 4．sixteenth 5．became 6．a 7．wider 8．to produce 9．them 10．Although/Though 【导语】本文是一篇说明文，介绍了不同文化交融背景下，土豆、茶、甘蔗、可可等常见食用作物在全世界的传播与贸易发展历史。 1．句意：食物通常也大不相同。括号内great是形容词，此处需要副词修饰形容词different，因此将great变为副词greatly。 2．句意：双方的人们都可以发现许多新的贸易机会。短语a number of后必须接可数名词复数，chance的复数变形为chances。 3．句意：早在公元前5000年，南美洲人就把土豆作为一种珍贵的食物进行交易。此处表达“作为”的含义，选用介词as。 4．句意：他们在16世纪将土豆带到了欧洲，很快土豆的使用就传遍了整个欧洲。表达“第几世纪”必须使用序数词，sixteen对应的序数词为sixteenth。 5．句意：喝茶的习惯很快就在当地变得流行，但因为价格高昂，还只是富人的饮品。本段整体叙述过去发生的历史事件，需要使用一般过去时，become的过去式为became。 6．句意：8000 多年前，新几内亚岛上的人们最早用甘蔗制作一种甜味汁液。固定搭配a kind of意为 “一种”，因此填不定冠词a。 7．句意：甘蔗的用途很快传遍东南亚，之后走向更广阔的世界。括号内wide需要变形修饰名词，结合语境变为形容词比较级wider。 8．句意：3000 多年前，中美洲的人们用可可制作一种辛辣的冷饮。固定结构use sth. to do sth.意为 “用某物做某事”，因此填不定式to produce。 9．句意：16世纪20年代，欧洲人将可可带回本土，加入糖制成了如今香甜的热饮。介词with后要使用人称代词宾格，they的宾格形式为them。 10．句意：虽然它价格昂贵，但是很多人都喜爱它。前后两个分句存在让步转折逻辑关系，用让步连词Although/Though引导从句，符合语境语义。 阅读短文，在空白处填入一个适当的单词或用括号内所给词的正确形式填空，使短文通顺、连贯。 There are about 5,000 different kinds of ladybugs (瓢虫) in the world. They come in many different 1 (colour). Their bright colours warn other animals or insects not to eat 2 (they). Ladybugs taste bad. A bird or a frog that eats a ladybug 3 (remember) the bright colour and will not eat another ladybug with the same colour again. When ladybugs are 4 danger, they will give out a fluid (液体) that 5 (taste) terrible. In many cultures, the ladybug is considered 6 (be) a symbol of good luck. Most ladybugs are 7 kind of useful insect. They eat other insects which do harm to crops. More than 5,000 insects 8 (eat) by a ladybug in its lifetime. Ladybugs have six short legs. They can live not only in the countryside, 9 in cities as well. Different ladybugs have different spots (点). Some of them don’t have spots at all. The 10 (common) kind in North America is the 7-spotted ladybug. 【答案】 1．colours 2．them 3．will remember 4．in 5．tastes 6．to be 7．a 8．are eaten 9．but 10．most common 【导语】本文介绍了瓢虫的种类、颜色、防御机制、文化象征意义、食性与生活环境，展现了瓢虫的生物特性与文化内涵。 1．句意：它们有许多不同的颜色。many different后接可数名词复数，colour的复数形式为colours。 2．句意：它们鲜艳的颜色警告其他动物或昆虫不要吃它们。动词eat后需接人称代词宾格作宾语，they的宾格形式为them。 3．句意：吃了瓢虫的鸟或青蛙会记住这种鲜艳的颜色，并且不会再吃另一只颜色相同的瓢虫。根据语境，此处描述的是未来会发生的动作，需用一般将来时，结构为“will + 动词原形”，故填will remember。 4．句意：当瓢虫处于危险中时，它们会释放一种尝起来很糟糕的液体。固定搭配“in danger”意为“处于危险中”，故填介词in。 5．句意：当瓢虫处于危险中时，它们会释放一种尝起来很糟糕的液体。句子陈述客观事实，为一般现在时，先行词a fluid为单数，定语从句的谓语动词需用第三人称单数形式，taste的第三人称单数形式为tastes。 6．句意：在许多文化中，瓢虫被认为是好运的象征。固定搭配“be considered to be”意为“被认为是……”，故填to be。 7．句意：大多数瓢虫是一种有用的昆虫。固定搭配“a kind of”意为“一种”，故填不定冠词a。 8．句意：一只瓢虫一生中会吃掉5000多只昆虫。主语More than 5,000 insects 与动词eat之间为被动关系，且句子描述客观事实，需用一般现在时的被动语态，结构为“am/is/are + 过去分词”，主语是复数，故be动词用are，eat的过去分词为eaten，故填are eaten。 9．句意：它们不仅能生活在农村，也能生活在城市。固定搭配“not only...but (also)...”意为“不仅……而且……”，此处省略了also，故but。 10．句意：北美最常见的瓢虫是七星瓢虫。in North America表示范围，此处指北美最常见的瓢虫，定冠词the后需接形容词最高级，common的最高级形式为most common。 阅读下面短文，根据语境或所给单词的提示，在每个空格内填入一个恰当的词，要求所填的词意义准确、形式正确，使短文意思完整、行文连贯。 Mount Qomolangma is famous around the world. To most people, Mount Qomolangma is one of the greatest 1 (wonder) of the world. Only the best climbers can 2 (safe) reach the top. Thin air, high cliffs, and changeable weather stop many climbers. Before 1960, no one was able to reach the top of Qomolangma from the northern side. Mountain climbers even called it the “Death Road”. 3 , a Chinese climbing team was determined to make the climb. On 24 May 1960, Liu Lianman, Wang Fuzhou, Qu Yinhua, and Gongbu arrived at the Second Step, 8,600 metres above sea level, which was so high that even birds could not reach it. Liu allowed his teammates to step 4 his shoulders. Bit by bit, they 5 (pull) themselves up. At 4:20 a.m. on 25 May, the Chinese national flag flew above the world’s highest mountain for the 6 (one) time. In 1975, another Chinese team brought 7 ladder to the Second Step. Until 2007, almost all climbers from the northern side used this “Chinese Ladder” to reach the top much 8 (fast) than before. In 2020, a Chinese research team measured 9 (it) height—8,848.86 metres. Climbing Qomolangma is quite 10 (danger). But why do people risk their lives to climb it? Curiosity about nature and great ambition are the answer. 【答案】 1．wonders 2．safely 3．However 4．on 5．pulled 6．first 7．a 8．faster 9．its 10．dangerous 【导语】本文是一篇说明文，主要讲述了珠穆朗玛峰作为世界奇观，以及中国登山队从北坡登顶珠峰、架设“中国梯”和重新测量其高度的历史，展现了人类的勇气与探索精神。 1．句意：对大多数人来说，珠穆朗玛峰是世界上最伟大的奇观之一。“one of the+形容词最高级+复数名词”是固定结构，表示“最……之一”，所以“wonder”需变为复数“wonders”。 2．句意：只有最优秀的登山者才能安全地到达山顶。修饰动词“reach”需用副词，“safe”的副词形式是“safely”。 3．句意：然而，一支中国登山队决心完成这次攀登。前文提到北坡被称为“死亡之路”，此处表示转折，且空后有逗号，用“However”（然而）符合语境。 4．句意：刘连满让队友们踩在他的肩膀上。固定搭配“step on one’s shoulders”表示“踩在某人的肩膀上”，符合语境。 5．句意：一点一点地，他们把自己拉了上去。全文以过去时叙述，此处谓语动词需用过去式，“pull”的过去式是“pulled”。 6．句意：5月25日凌晨4点20分，五星红旗第一次飘扬在世界最高峰上空。固定搭配“for the first time”表示“第一次”，所以“one”需变为序数词“first”。 7．句意：1975年，另一支中国登山队带了一架梯子到“第二台阶”。“ladder”是可数名词单数，此处表示泛指“一架梯子”，用不定冠词“a”。 8．句意：直到2007年，几乎所有从北坡攀登的登山者都借助这架“中国梯”，比以前更快地到达了山顶。“than”是比较级的标志词，“fast”的比较级是“faster”。 9．句意：2020年，一支中国研究团队测量了它的高度——8848.86米。修饰名词“height”需用形容词性物主代词，指代珠峰的高度，“it”的形容词性物主代词是“its”。 10．句意：攀登珠穆朗玛峰是相当危险的。“is quite”后接形容词，“danger”的形容词形式是“dangerous”，作表语。 Have you heard of the Bermuda Triangle? It is an area in the Atlantic Ocean. It is famous 1 many ships and planes have disappeared there. Some people say it is a mystery. They have strange theories. Some think aliens are living under the sea. 2 (other) think there is a magnetic field that confuses compasses. However, scientists have a more 3 (simple) explanation. They say the weather in this area is very changeable. Storms appear 4 (sudden). The ocean is also very deep. If a plane crashes, it might sink to the bottom and never 5 (find). The Gulf Stream, a fast ocean current, flows through the Triangle. It can wash away evidence of an accident very quickly. Also, this is a very busy area for ships and planes. So, statistically, there might be 6 (many) accidents here just because there are more travelers. 7 we do not know exactly what happened to every missing ship, we know that nature is powerful. The ocean can be calm one minute and wild the next. Exploring the ocean is exciting, but it is also 8 (risk). We must respect the sea. It covers most of our planet, and it holds many 9 (secret). Perhaps one day we 10 (solve) all the mysteries, but for now, the Bermuda Triangle remains a puzzle. 【答案】 1．because 2．Others 3．simple 4．suddenly 5．be found 6．more 7．Though/Although 8．risky 9．secrets 10．will solve 【导语】本文介绍百慕大三角的神秘传闻，从科学角度解释事故多发的真实原因，告诉我们海洋力量强大、充满未知，我们应当敬畏自然。 1．句意：它出名，因为许多船只和飞机在此失踪。前后为因果关系，用连词because引导原因状语从句。 2．句意：一些人认为海底有外星人，另一些人认为磁场会干扰指南针。根据“Some think aliens are living under the sea”可知，此处指其他人，others“其他人”，代词，作主语，句首首字母大写。 3．句意：然而，科学家有更简单的解释。more+形容词原级，构成比较级，填simple。 4．句意：暴风雨会突然出现。此处使用副词修饰动词，sudden“突然的”，形容词，其副词形式为suddenly。 5．句意：飞机一旦坠毁，可能沉入海底，永远不被发现。此处指永远不会被发现，主语it与 find为被动关系，使用被动语态，情态动词后用be+过去分词，find的过去分词为found。 6．句意：所以从数据来看，这里会有更多事故。后文more travelers提示对比，用many的比较级more。 7．句意：虽然我们不知道每一艘失踪的船只到底发生了什么，但我们知道自然是强大的。句子前后为让步关系，使用though或although“虽然”引导让步状语从句，句首首字母大写。 8．句意：探索海洋令人兴奋，但也很危险。risk“风险”，名词，此处使用其形容词形式risky“有风险的”，作表语。 9．句意：海洋蕴藏着许多秘密。根据“many”可知，此处使用名词复数，secret“秘密”，其复数形式为secrets。 10．句意：或许有一天我们将会解开所有谜团。根据“Perhaps one day”可知，句子时态为一般将来时，其结构为will do，solve“解决”，动词，故用will solve。 能力综合实践4篇 阅读下面短文，在空白处填入适当的词或填入括号中单词的正确形式。 Mount Qomolangma, standing at around 8,848.86 metres, is the world’s highest mountain above sea level. But do you know that 1 (it) height is growing? Scientists say the huge mountain grows by as much as two millimetres (毫米) every year. Two millimetres is very tiny, 2 the change will be big over time. In 3 recent study, researchers have suggested that Qomolangma is growing because of a river, the Arun. This powerful river 4 (run) along the Himalayas and washes away rocks and soil. Then a huge, deep gorge (峡谷) 5 (create). As there is now less ground material left in that area, the crust (地壳) becomes lighter as well. This allows the crusts 6 (push) against each other and go upwards. Many 7 (year) later, the whole process raises the height of the land—even big, heavy mountains. 8 makes Qomolangma grow so rapidly? Researchers discovered that with a lot more water going through the Arun, the river would wash away more rocks and soil. As a result, the gorge becomes even 9 (big) in a shorter time, causing Qomolangma to grow more quickly. It is 10 (real) amazing to think about how nature can change the world’s highest mountain! 【答案】 1．its 2．but 3．a 4．runs 5．is created 6．to push 7．years 8．What 9．bigger 10．really 【导语】本文介绍了珠穆朗玛峰的高度仍在增长，科学家解释了其中的原因与阿伦河有关。 1．句意：但你知道它的高度还在增长吗？此处修饰名词“height”，应用形容词性物主代词its，表示“它的”。 2．句意：两毫米非常微小，但随着时间的推移，变化会很大。前后句意存在转折关系，前说“微小”，后说“变化大”，应用转折连词but。 3．句意：在最近的一项研究中，研究人员提出珠穆朗玛峰因阿伦河而增高。study为可数名词单数，此处泛指“一项研究”，且recent以辅音音素开头，应用不定冠词a。 4．句意：这条强大的河流沿着喜马拉雅山脉奔流，冲刷岩石和土壤。描述客观事实，句子时态为一般现在时；主语“This powerful river”为第三人称单数，谓语动词应用run的第三人称单数形式runs。 5．句意：然后，一个巨大而深的峡谷被形成。主语“a huge, deep gorge”与动词create之间为被动关系，且描述一般情况，应用一般现在时的被动语态，结构为is/am/are+过去分词；主语为单数，be动词用is，create的过去分词为created。 6．句意：这使得地壳相互挤压并向上移动。allow sb./sth. to do sth.为固定搭配，意为“允许……做某事”，此处应用动词不定式to push作宾语补足语。 7．句意：许多年后，整个过程抬高了地面的高度——甚至是高大沉重的山脉。year为可数名词，其前有many修饰，应用复数形式years。 8．句意：是什么让珠穆朗玛峰增长得如此迅速？此处为特殊疑问词引导的疑问句，询问原因或事物，且作主语，应用疑问代词What，首字母大写。 9．句意：结果，峡谷在更短的时间内变得更大，导致珠穆朗玛峰增长得更快。even后常接形容词比较级表示程度加深，big的比较级为bigger。 10．句意：思考大自然如何改变世界最高峰真是令人惊叹。此处修饰整个句子，应用副词作状语，real的副词形式为really。 Ella just had 1 unforgettable trip. She saw the Hukou Waterfall on the Yellow River. She once wondered if the Yellow River was the longest river in China. In fact, the Yangtze River is the longest one in China. It travels the 2 (far) and is about 6,300 kilometres long, while the Yellow River, about 5,464 kilometres long, is the 3 (two) longest. The Yellow River gets 4 (it) name because some 5 (part) of it carry brown and yellow earth. Ella likes learning 6 rivers. Her favourite river is the Nile, the longest river in Africa. It is 6,671 kilometres long and very important in Egypt’s history. Both the Nile 7 the Yellow River played important roles in helping the 8 (develop) of ancient civilizations and remain important today. In China, the Yellow River is even called the “mother river”. We should try our best 9 (protect) them. We should raise our awareness (意识) of environmental protection and take practical action to keep these 10 (wonder) rivers clean and well-preserved for future generations (子孙后代). 【答案】 1．an 2．farthest/furthest 3．second 4．its 5．parts 6．about 7．and 8．development 9．to protect 10．wonderful 【导语】本文主要讲述了艾拉去黄河壶口瀑布游玩的经历，并介绍了中国的长江、黄河以及非洲的尼罗河等著名河流的基本情况及其对人类文明发展的重要作用，呼吁人们保护这些河流。 1．句意：艾拉刚有了一次难忘的旅行。unforgettable以元音音素/ʌ/开头，且trip为可数名词单数，应使用不定冠词an，泛指“一次难忘的旅行”。 2．句意：它流经的距离最远，大约6300公里长。而黄河全长约5464公里，是第二长的河流。定冠词the后接最高级形式，far的最高级是farthest或furthest。 3．句意：它流经的距离最远，大约6300公里长。而黄河全长约5464公里，是第二长的河流。“the+序数词+longest”意为“第几长”。two是基数词，对应的序数词是second。 4．句意：黄河得名是因为它的一些部分携带着棕黄色的泥沙。修饰名词name，需要用形容词性物主代词。it的形容词性物主代词是its。 5．句意：黄河得名是因为它的一些部分携带着棕黄色的泥沙。前面有some，后面接可数名词复数。part的复数形式是parts。 6．句意：艾拉喜欢了解河流。learn about是固定搭配，意为“了解，学习关于……的知识”。 7．句意：尼罗河和黄河在帮助古代文明发展方面都发挥了重要作用，并且在今天仍然很重要。both...and...是固定搭配，意为“……和……都”。 8．句意：尼罗河和黄河在帮助古代文明发展方面都发挥了重要作用，并且在今天仍然很重要。“the+名词+of”是常见结构，develop的名词形式是development。 9．句意：我们应该尽最大努力保护它们。try one’s best to do sth.是固定搭配，意为“尽某人最大努力做某事”，空处应填不定式to protect。 10．句意：我们应该提高环保意识，采取实际行动，为子孙后代保持这些奇妙的河流清洁和完好。修饰名词rivers，需要用形容词。wonder的形容词形式是wonderful。 阅读下面短文，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适当形式。     Do you know fungi (真菌) ? In fact, they are all around us, even in the air we breathe. Autumn is the 1 (great) time for all kinds of fungi to grow.     There’s no doubt that fungi are not animals because nobody 2 (see) them moving around. They are not plants because they cannot create food from sunlight and air. Instead, they get food by 3 (break) down wood, leaves, and dead things. If fungi are not animals or plants, then what are they? Well, scientists put fungi in 4 (they) own kingdom, completely separate from animals and plants. Fungi come 5 all shapes, colors, and forms.     Scientists think that there are at least 1.5 million kinds of fungi in total. Humans have found only about 100,000. Greg Mueller, the expert in fungi, said that he never 6 (know) what he might find in the forest.     When it comes to 7 (vegetable), fungi are commonly known as mushrooms. Mushrooms are delicious food, 8 you should NEVER eat wild mushrooms. Many wild mushrooms can 9 (easy) cause sickness or even death. If you want to make sure a mushroom is safe, you can ask 10 expert to take a good look at it or buy it from the supermarket. 【答案】 1．greatest 2．sees 3．breaking 4．their 5．in 6．knew 7．vegetables 8．but/yet 9．easily 10．an 【导语】本文是一篇说明文，主要介绍了真菌既不属于动物也不属于植物，科学家将它们归为独立的王国，并介绍了真菌的种类、蘑菇的食用安全建议等内容。 1．句意：秋天是各种真菌生长的最美好时节。此处需要形容词的最高级形式，“the + 形容词最高级” 表示 “最…… 的”，所以great要变为greatest。 2．句意：毫无疑问，真菌不是动物，因为没有人看到它们四处移动。nobody作主语时谓语动词用第三人称单数形式，描述客观事实用一般现在时。故填sees。 3．句意：它们通过分解木头、树叶和腐烂的东西来获取食物。 介词by后接动词ing形式，“break down”意为“分解”。故填breaking。 4．句意：科学家把真菌归入它们自己的王国，完全独立于动物和植物。此处需要形容词性物主代词修饰own kingdom，意为“它们自己的”。故填their。 5．句意：真菌以各种形状、颜色和形态出现。固定搭配“come in”意为“以……形式出现”，符合语境。 6．句意：真菌专家Greg Mueller说，他从来不知道自己在森林里会发现什么。描述过去的事情（他说过的话）用一般过去时，且never与过去时连用表示“从来不知道”。故填knew。 7．句意：说到蔬菜，真菌通常被称为蘑菇。此处泛指“蔬菜”这一类事物，应用复数形式。故填vegetables。 8．句意：蘑菇是美味的食物，但是你绝对不应该吃野生蘑菇。前后句为转折关系，表示“虽然美味，但不要吃野生的”。故填but或yet。 9．句意：许多野生蘑菇很容易引起疾病甚至死亡。此处需要副词修饰动词cause，表示“容易地”。故填easily。 10．句意：如果你想确定一种蘑菇是否安全，你可以请一位专家仔细检查它，或者从超市购买。 根据“ask...expert”以及expert以元音音素开头可知，此处表示“一位专家”，应用不定冠词an。 Breaking news! Scientists have recently reported the first known case of a cow using a tool. The cow, named Veronika, 1 (study) as she used a brush to scratch (挠痒) different parts of her body. The study suggests that cows may be far 2 (intelligent) than many people believe. Living in Austria, Veronika is far from 3 ordinary cow. She is kept as a pet rather than a farm animal, which allows her to do whatever she wants, whenever she wants. She often 4 (suffer) from itchy spots on her skin caused by horsefly bites. According to her owner, Veronika has picked up branches in the fields and used them to scratch herself for years. In fact, she was never taught this skill. She 5 (simple) figured it out on her own, like a genius. A scientist, who studies how animals solve problems, became interested after 6 (watch) a video of Veronika. She decided to run an experiment, offering Veronika a brush 7 (see) if she could use it to scratch herself. Veronika lifted the brush with her tongue and 8 (tooth). Most of the time, she used the brush end to scratch her back skin. However, she switched 9 the stick end when scratching her belly (腹部). This kind of tool use was only seen in chimpanzees before. It is believed that many cows might have this intelligence but never get a chance to show it. Cows have been living alongside humans for thousands of years, 10 we have never noticed their secret smartness until now! 【答案】 1．was studied 2．more intelligent 3．an 4．suffers 5．simply 6．watching 7．to see 8．teeth 9．to 10．but 【导语】本文主要讲述科学家首次发现一头名叫Veronika的牛会使用刷子给自己挠痒，这表明牛可能比人们想象的要聪明得多。 1．句意：这头名叫Veronika的牛在使用刷子挠身体不同部位时被研究。分析：主语“The cow”与动词“study”之间是被动关系，需用被动语态；根据从句中的“used”可知，使用一般过去时的被动语态；主语“The cow”为第三人称单数，be动词用was， study的过去分词是studied。 2．句意：这项研究表明，牛可能比许多人认为的要聪明得多。后面有than，需要用比较级。intelligent是多音节词，比较级是more intelligent。 3．句意：生活在奥地利的Veronika绝不是一头普通的牛。分析：ordinary以元音音素/ɔː/开头，前面用不定冠词an，泛指“一头普通的牛”。 4．句意：她经常遭受由马蝇叮咬引起的皮肤瘙痒。根据“often”，此处描述的是经常性、习惯性的动作，应用一般现在时；主语“She”是第三人称单数，谓语动词需用第三人称单数形式suffers。 5．句意：她简直像个天才一样，自己就弄明白了。此处需要一个副词修饰动词figured out，simple的副词形式是simply。 6．句意：一位研究动物如何解决问题的科学家在观看了一段Veronika的视频后产生了兴趣。after是介词，后面接动名词作宾语。watch的动名词形式是watching。 7．句意：她决定进行一项实验，给Veronika提供一把刷子，看看她是否能用它来给自己挠痒。空处在句中表示“提供刷子”的目的，需用动词不定式to see作目的状语。 8．句意：Veronika用她的舌头和牙齿举起刷子。tooth是可数名词，根据常识，牛使用多颗牙齿咬住并举起刷子，应用其复数形式teeth。 9．句意：然而，在挠腹部时，她换成了棍子那一端。switch to是固定搭配，意为“切换到……”，switch to the stick end意为“换到用棍子那头”。 10．句意：牛与人类共同生活了数千年，但直到现在我们才注意到它们隐藏的聪明才智！前半句表示牛与人类生活了数千年，后半句表示直到现在才注意到它们的聪明，前后句意存在明显的转折关系，需用转折连词but。 2 同步新教材，周周有练习，月月有重点！ 1 同步新教材，周周有练习，月月有重点！ 学科网（北京）股份有限公司 $ 2025-2026学年一线教师制作新教材英语期末复习系列资料，名师遴选！ 2025-2026学年一线教师制作新教材英语期末复习系列资料，名师遴选！ 学校:___________姓名：___________班级：___________考号：___________ Unit 5 Looking into nature 单元话题（探索自然）语法填空进阶练12篇 说明：此专题分三个难度层次，基础入门训练<进阶拓展训练< 能力综合实践，老师根据学生实际情况进行针对性难度训练。 基础入门训练4篇 The deep sea is one of the most amazing and least known places on Earth. The Mariana Trench is the 1 (deep) point in the world’s oceans, about 11,000 2 (metre) below sea level. Many countries are 3 (research) the deep sea. People’s curiosity (好奇心) about the unknown world leads 4 (they) to keep exploring. In 2020, China’s manned (载人的) submersible Fendouzhe 5 (dive) to the bottom of the trench and 6 (film) the deep-sea environment. Life in the deep sea is special and strange. Many deep-sea animals are large and 7 (usual). Some can even make their own light. The famous Titanic lies 8 (quiet) about 3,800 metres under the water. However, the deep sea is in danger. We can even find rubbish at the greatest depths. It is 9 (harm) to sea life. It’s time for us 10 (take) action and protect our oceans. Do you believe a rose plant says, “I’m thirsty!” or a tree shouts, “My arms hurt? Maybe you will say this could only happen in some 1 (children) stories. In fact, plants are not always silent. So far, a recent study 2 (find) plants shout when they are in need of water or having their stems cut. “Even in a quiet field, there are 3 (actual) some sounds that carry information (信息). However, the pitch (音高) is too high for people 4 (hear),” said a teacher from Tel Aviv University. The researchers used microphones to record some tomato plants and found that stressed plants send out 5 (many) sounds than unstressed plants. “When tomatoes are not stressed at all, they are very quiet.” The teacher said that they also developed a machine to tell the differences 6 thirsty plants and cut plants. The result shows that 7 the causes of stress change, they shout differently. After 8 team recorded many kinds of other plants, they found that many plants like corn, wheat and grape plants send out sounds when they are under stress, too. “There is a possibility that a lot of talk is happening,” Professor Hadany said. “Because other 9 (plant) may hear the call of the stressed plants.” Sound recordings of plants could bring humans lots of advantages especially (尤其) in farming. For example, people will make sure 10 corn is getting enough water or not, or where water is needed most. Nature is wonderful. It is regarded as one of 1 (good) teachers. It 2 (teach) us a lot and we are born to learn from it to solve problems. For example, scientists used what they saw in nature 3 (improve) our way of travelling. In the days of high-speed train research and development, scientists were once faced with 4 noise problem. This was because the trains pushed air through tunnels at high speeds. So, 5 a train came out of a tunnel, it could be very, very noisy. However, kingfisher birds hardly make a sound when they get into lakes or 6 (river). Engineers got a clever idea. They changed the front of the trains to match the shape of the kingfisher. Then the air could 7 (easy) pass over the trains. The problem 8 (solve)! The kingfisher birds’ example is just one that we learned from nature. Scientists study the smart models that nature can offer. Then they use 9 (they) wisdom and imagination to design new products. Nature provides us 10 endless possibilities to find wonderful ways to improve our lives. Learning from nature knows no bounds (永无止境)！ 阅读下面短文，根据语境或所给单词的提示，在每个空格内填入一个恰当的词，要求所填的词意义准确、形式正确，使短文意思完整、行文连贯。 Do you know the largest nature park in China? It is Sanjiangyuan National Park on the Qinghai-Xizang Plateau (青藏高原) .“Sanjiangyuan” 1 (mean) the source of China’s three great rivers the Yangtze River, Yellow River and Lancang River. The Yangtze River is the 2 (long) of the three. Sanjiangyuan is famous as the Water Tower of China or even Asia. There 3 (be) lots of rivers, lakes, and wetlands. People living around all depend on rich natural resources (资源) of it. It is important 4 our life. However, due to the global warming, the place was once in great 5 (dangerous). Life there was also much 6 (hard) for both animals and humans than that in other places. To stop things from 7 (get) worse, our government has taken many ways, for example, building Sanjiangyuan National Park. Many people joined the environmental protection club. It advised the members to start a WeChat group and invite other people to join in. This was 8 great idea. It allowed more and more people to meet each other online 9 talk about how to protect the environment. Now, people there are living in peace with nature. Our country is trying its best to make Sanjiangyuan National Park one of the most famous 10 (park) all over the world. I believe in the future the park will be a window to show Chinese natural beauty to the outside. 进阶拓展训练4篇 阅读下面的短文，在空白处填入一个恰当的单词或者括号内单词的正确形式（每空不限填一词） When cultures meet, not just their language or clothing may be different. Often their food will be 1 (great) different too. People on both sides can discover a number of new 2 (chance) for trading (贸易). This text tells how some common food plants spread around the world. As early as 5,000 BC, people traded potatoes in South America 3 a valuable type of food. They took them to Europe in the 4 (sixteen) century and their use soon spread across it. Tea drinking started in China. By the early 1600s, traders had begun to ship tea from China to Europe. Tea drinking soon 5 (become) fashionable there but because of its high price, it was still a drink for the wealthy. Sugar cane (甘蔗) was first used to make 6 kind of sweet juice over 8,000 years ago on the island of New Guinea. Its use soon spread across Southeast Asia and then to 7 (wide) world. People used cocoa 8 (produce) a cold, spicy drink in Central America over 3,000 years ago. The Europeans brought it back with 9 (they) in the 1520s and added sugar to make the sweet, hot drink today. 10 it is expensive, many people love it. 阅读短文，在空白处填入一个适当的单词或用括号内所给词的正确形式填空，使短文通顺、连贯。 There are about 5,000 different kinds of ladybugs (瓢虫) in the world. They come in many different 1 (colour). Their bright colours warn other animals or insects not to eat 2 (they). Ladybugs taste bad. A bird or a frog that eats a ladybug 3 (remember) the bright colour and will not eat another ladybug with the same colour again. When ladybugs are 4 danger, they will give out a fluid (液体) that 5 (taste) terrible. In many cultures, the ladybug is considered 6 (be) a symbol of good luck. Most ladybugs are 7 kind of useful insect. They eat other insects which do harm to crops. More than 5,000 insects 8 (eat) by a ladybug in its lifetime. Ladybugs have six short legs. They can live not only in the countryside, 9 in cities as well. Different ladybugs have different spots (点). Some of them don’t have spots at all. The 10 (common) kind in North America is the 7-spotted ladybug. 阅读下面短文，根据语境或所给单词的提示，在每个空格内填入一个恰当的词，要求所填的词意义准确、形式正确，使短文意思完整、行文连贯。 Mount Qomolangma is famous around the world. To most people, Mount Qomolangma is one of the greatest 1 (wonder) of the world. Only the best climbers can 2 (safe) reach the top. Thin air, high cliffs, and changeable weather stop many climbers. Before 1960, no one was able to reach the top of Qomolangma from the northern side. Mountain climbers even called it the “Death Road”. 3 , a Chinese climbing team was determined to make the climb. On 24 May 1960, Liu Lianman, Wang Fuzhou, Qu Yinhua, and Gongbu arrived at the Second Step, 8,600 metres above sea level, which was so high that even birds could not reach it. Liu allowed his teammates to step 4 his shoulders. Bit by bit, they 5 (pull) themselves up. At 4:20 a.m. on 25 May, the Chinese national flag flew above the world’s highest mountain for the 6 (one) time. In 1975, another Chinese team brought 7 ladder to the Second Step. Until 2007, almost all climbers from the northern side used this “Chinese Ladder” to reach the top much 8 (fast) than before. In 2020, a Chinese research team measured 9 (it) height—8,848.86 metres. Climbing Qomolangma is quite 10 (danger). But why do people risk their lives to climb it? Curiosity about nature and great ambition are the answer. Have you heard of the Bermuda Triangle? It is an area in the Atlantic Ocean. It is famous 1 many ships and planes have disappeared there. Some people say it is a mystery. They have strange theories. Some think aliens are living under the sea. 2 (other) think there is a magnetic field that confuses compasses. However, scientists have a more 3 (simple) explanation. They say the weather in this area is very changeable. Storms appear 4 (sudden). The ocean is also very deep. If a plane crashes, it might sink to the bottom and never 5 (find). The Gulf Stream, a fast ocean current, flows through the Triangle. It can wash away evidence of an accident very quickly. Also, this is a very busy area for ships and planes. So, statistically, there might be 6 (many) accidents here just because there are more travelers. 7 we do not know exactly what happened to every missing ship, we know that nature is powerful. The ocean can be calm one minute and wild the next. Exploring the ocean is exciting, but it is also 8 (risk). We must respect the sea. It covers most of our planet, and it holds many 9 (secret). Perhaps one day we 10 (solve) all the mysteries, but for now, the Bermuda Triangle remains a puzzle. 能力综合实践4篇 阅读下面短文，在空白处填入适当的词或填入括号中单词的正确形式。 Mount Qomolangma, standing at around 8,848.86 metres, is the world’s highest mountain above sea level. But do you know that 1 (it) height is growing? Scientists say the huge mountain grows by as much as two millimetres (毫米) every year. Two millimetres is very tiny, 2 the change will be big over time. In 3 recent study, researchers have suggested that Qomolangma is growing because of a river, the Arun. This powerful river 4 (run) along the Himalayas and washes away rocks and soil. Then a huge, deep gorge (峡谷) 5 (create). As there is now less ground material left in that area, the crust (地壳) becomes lighter as well. This allows the crusts 6 (push) against each other and go upwards. Many 7 (year) later, the whole process raises the height of the land—even big, heavy mountains. 8 makes Qomolangma grow so rapidly? Researchers discovered that with a lot more water going through the Arun, the river would wash away more rocks and soil. As a result, the gorge becomes even 9 (big) in a shorter time, causing Qomolangma to grow more quickly. It is 10 (real) amazing to think about how nature can change the world’s highest mountain! Ella just had 1 unforgettable trip. She saw the Hukou Waterfall on the Yellow River. She once wondered if the Yellow River was the longest river in China. In fact, the Yangtze River is the longest one in China. It travels the 2 (far) and is about 6,300 kilometres long, while the Yellow River, about 5,464 kilometres long, is the 3 (two) longest. The Yellow River gets 4 (it) name because some 5 (part) of it carry brown and yellow earth. Ella likes learning 6 rivers. Her favourite river is the Nile, the longest river in Africa. It is 6,671 kilometres long and very important in Egypt’s history. Both the Nile 7 the Yellow River played important roles in helping the 8 (develop) of ancient civilizations and remain important today. In China, the Yellow River is even called the “mother river”. We should try our best 9 (protect) them. We should raise our awareness (意识) of environmental protection and take practical action to keep these 10 (wonder) rivers clean and well-preserved for future generations (子孙后代). 阅读下面短文，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适当形式。     Do you know fungi (真菌) ? In fact, they are all around us, even in the air we breathe. Autumn is the 1 (great) time for all kinds of fungi to grow.     There’s no doubt that fungi are not animals because nobody 2 (see) them moving around. They are not plants because they cannot create food from sunlight and air. Instead, they get food by 3 (break) down wood, leaves, and dead things. If fungi are not animals or plants, then what are they? Well, scientists put fungi in 4 (they) own kingdom, completely separate from animals and plants. Fungi come 5 all shapes, colors, and forms.     Scientists think that there are at least 1.5 million kinds of fungi in total. Humans have found only about 100,000. Greg Mueller, the expert in fungi, said that he never 6 (know) what he might find in the forest.     When it comes to 7 (vegetable), fungi are commonly known as mushrooms. Mushrooms are delicious food, 8 you should NEVER eat wild mushrooms. Many wild mushrooms can 9 (easy) cause sickness or even death. If you want to make sure a mushroom is safe, you can ask 10 expert to take a good look at it or buy it from the supermarket. Breaking news! Scientists have recently reported the first known case of a cow using a tool. The cow, named Veronika, 1 (study) as she used a brush to scratch (挠痒) different parts of her body. The study suggests that cows may be far 2 (intelligent) than many people believe. Living in Austria, Veronika is far from 3 ordinary cow. She is kept as a pet rather than a farm animal, which allows her to do whatever she wants, whenever she wants. She often 4 (suffer) from itchy spots on her skin caused by horsefly bites. According to her owner, Veronika has picked up branches in the fields and used them to scratch herself for years. In fact, she was never taught this skill. She 5 (simple) figured it out on her own, like a genius. A scientist, who studies how animals solve problems, became interested after 6 (watch) a video of Veronika. She decided to run an experiment, offering Veronika a brush 7 (see) if she could use it to scratch herself. Veronika lifted the brush with her tongue and 8 (tooth). Most of the time, she used the brush end to scratch her back skin. However, she switched 9 the stick end when scratching her belly (腹部). This kind of tool use was only seen in chimpanzees before. It is believed that many cows might have this intelligence but never get a chance to show it. Cows have been living alongside humans for thousands of years, 10 we have never noticed their secret smartness until now! 6 同步新教材，周周有练习，月月有重点！ 7 同步新教材，周周有练习，月月有重点！ 学科网（北京）股份有限公司 $