Unit 2 Saving the Earth单元话题语法填空练习-2025-2026学年九年级英语上册单元重难点易错题精练（仁爱科普版）

Unit 2 Saving the Earth 单元话题语法填空练习 Unit 2 Saving the Earth单元话题：环境保护 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 阅读下面短文，根据上下文或者括号内的提示，用单词的正确形式填空。     When nature meets man-made roads, it’s seldom a good thing. A large number of animals get killed by cars every week. So engineers try to build green bridges. These bridges help keep animals and people 1 (safety).     The idea of green bridges isn’t really new. The first one was built in France in the 1950s. As well as Germany, which 2 (add) more than 800 green bridges since 1950, Canada and the United States are also trying to protect local wildlife 3 building animal bridges over the years.       4 there are different kinds of green bridges, their designs are similar. First, they are usually quite wide, giving animals plenty of room to move. Second, they 5 (cover) with soil and plants to look like the forest or land on 6 side of the roads. Lastly, they are wider at the ends, spreading out where they meet the land. This helps collect animals to the bridge and guide them out when they leave.     People may wonder 7 the green bridges really work. Since 1996, there have been 11 kinds of big animals in Canada’s Banff National Park. These animals include bears, elk and cougars. They have walked across green bridges more than 200,000 times. What’s more, in some places where these green bridges were built, 8 number of accidents between animals and cars has gone down by 90%.     These crossings are clearly a step in the right direction to 9 (offer) safety to wildlife. And with these bridges, both animal and human 10 (dead) on roads will continue to go down. 【答案】 1．safe 2．has added 3．by 4．Although/Though 5．are covered 6．either 7．whether/if 8．the 9．offer 10．deaths 【导语】本文是一篇说明文，文章主要介绍了绿色桥梁（动物通道）的作用、设计特点及其对保护野生动物和减少交通事故的积极影响。 1．句意：这些桥梁有助于保护动物和人的安全。根据“These bridges help keep animals and people ”可知，“keep sb/sth+adj.”表示“使某人/某物保持某种状态”，safety的形容词形式是safe“安全的”。故填safe。 2．句意：德国自1950年以来增加了800多座绿色桥梁，加拿大和美国多年来也试图通过建造动物桥梁来保护当地的野生动物。根据“since 1950”可知，此处需用现在完成时，结构为“have/has+过去分词”。先行词“Germany”是三单，关系代词“which”指代德国，助动词用has；add的过去分词形式是added。故填has added。 3．句意：德国自1950年以来增加了800多座绿色桥梁，加拿大和美国多年来也试图通过建造动物桥梁来保护当地的野生动物。根据“trying to protect local wildlife”和“building animal bridges”可知，此处需填介词表示“通过某种方式”。“by+动名词”意为“通过做某事”，符合用修建桥梁的方法保护动物的语境。故填by。 4．句意：尽管绿色桥梁有不同的种类，但它们的设计是相似的。空格前后句是让步关系，用Although/Though“虽然，尽管”引导。故填Although/Though。 5．句意：其次，它们被土壤和植物覆盖，看起来像道路两侧的森林或土地。主语“they”为复数，与cover是被动关系，且描述客观事实用一般现在时。故填are covered。 6．句意：其次，它们被土壤和植物覆盖，看起来像道路两侧的森林或土地。either side表示“（道路的）任意一侧”。故填either。 7．句意：人们可能想知道这些绿色桥梁是否真的有效。wonder后接whether/if引导的宾语从句，表示“是否”。故填whether/if。 8．句意：除此之外，在这些绿色桥梁建造的地方，动物与汽车之间的事故数量减少了90%。the number of表示“……的数量”，符合语境。故填the。 9．句意：这些通道显然是朝着为野生动物提供安全的正确方向迈出的一步。分析句子可知，此处为动词不定式表目的，由于空格前已经有to，故空格处用动词原形。故填offer。 10．句意：有了这些桥梁，动物和人类在道路上的死亡人数将继续下降。根据“animal and human”（动物和人类的）可知，此处需填名词作主语。dead是形容词，其名词形式是death，表示“死亡案例”；结合“both animal and human”可知，需用复数deaths表示两类群体的死亡案例。故填deaths。 This is the year 2070. Today is my 1 (fifty) birthday, but I look like a person of eighty-five. I have a serious kidney (肾脏) problem because I don’t have enough water 2 (drink). I’m afraid I don’t have much time left to live. I’m already one of the oldest people in this society. I remember when I was five years old, everything was very different. There were lots of trees in the parks. I could enjoy a shower for half 3 hour. At that time, 4 (woman) all had beautiful hair. Now, we have to shave (剃光) our heads to keep them clean without the use of water. I remember there were “Saving Water” warnings in many public places, but nobody 5 (pay) attention. We believed water would last forever. Now, all the rivers and lakes are either dry polluted. Water is much 6 (expensive) than gold and diamonds. In the past, doctors suggested adults drink eight glasses 7 water a day. Nowadays, I 8 (allow) half a glass only. Most people are weak and sick. When my son asks me about my childhood, I tell him about how pleasant it was to fish in the rivers 9 how healthy people were. When he asks, “Why is there no clean water now?” I feel guilty (有罪的). I belong to those people who simply turned a blind eye to all the warnings. I hope the people living in the 2020s 10 (true) understand the importance of saving water. 【答案】 1．fiftieth 2．to drink 3．an 4．women 5．paid 6．more expensive 7．of 8．am allowed 9．and 10．truly 【导语】本文主要讲述了作者在2070年看到到处都是缺少水资源的情况，来呼吁人们要明白节约水的重要性。 1．句意：今天是我的五十岁生日，但是我看起来像个八十五岁的人。本句表示作者的“第五十个”生日，应用提示词的序数词表示。故填fiftieth。 2．句意：我有严重的肾脏问题，因为我没有足够的水喝。drink“喝”，动词，此处应填写其不定式作water的后置定语。故填to drink。 3．句意：我可以享受半个小时的淋浴。half an hour“半小时”，固定表达。故填an。 4．句意：那时，女人们都有漂亮的头发。woman“女人”，可数名词，此处填写其复数形式表泛指。故填women。 5．句意：我记得很多公共场所都有“节约用水”的警示，但是没有人注意。根据were可知，本句时态为一般过去时，所以动词用过去式。故填paid。 6．句意：水比黄金和钻石更贵。根据than可知，此处填写提示词的比较级形式。故填more expensive。 7．句意：在过去，医生建议成年人一天要喝八杯水。此处采用“容器+of+不可数名词”结构将不可数名词进行量化表达。故填of。 8．句意：如今，我只被允许喝半杯。I与allow构成逻辑上的动宾关系，结合nowadays，本句用一般现在时的被动语态表达，be动词用am。故填am allowed。 9．句意：当儿子问起我的童年时，我告诉他在河里钓鱼是多么愉快，人们是多么健康。设空处前后构成并列关系，and“和”，连词。故填and。 10．句意：我希望生活在21世纪20年代的人们真正明白节约用水的重要性。此处填写提示词的副词形式修饰understand，truly“真正地”。故填truly。 It’s time to go home in the afternoon. However, the kids at Sunshine Primary School are 1 (surprising) quiet. Instead of the usual 2 (shout) and running, you can hear them asking each other, “Are the lights all off?” “Shall we check the taps to make sure they are not dripping (滴水)?” or “How many napkins did we use today?” “We’ve never made the children do 3 (something),” explains the school headmaster. “They came up with all the ideas themselves. They are doing this 4 they want to.” If a visitor 5 (take) a look around the school, he won’t see rubbish everywhere. Everything is 6 (collect) and reused, or sent to be recycled. Sunshine Primary School started being green two years ago. Even parents took part 7 this activity. The school has its own garden where they grow vegetables 8 flowers. In this way, they can learn about the environment. Even the school’s heating and light bills have dropped. At the same time, the number of rubbish bags 9 (have) gone down from seven a week to two or three. Everywhere in Sunshine Primary School, there are special 10 (poster) asking everyone to take their rubbish home and save energy. 【答案】 1．surprisingly 2．shouting 3．anything 4．because 5．takes 6．collected 7．in 8．and 9．has 10．posters 【导语】本文主要讲述了阳光小学的孩子们自发参与环保活动，通过节约能源、回收利用等方式践行绿色理念，并带动家长共同参与的故事。 1．句意： 然而，阳光小学的孩子们却出奇地安静。分析句子可知，空处需副词修饰形容词quiet， surprising的副词是surprisingly“出人意料地”。故填surprisingly。 2．句意： 取代往常的叫喊和奔跑，你可以听到他们在互相询问……根据“the usual”和“and running”可知，空处与running并列，shout需改为动名词shouting，故填shouting。 3．句意： 我们从未强迫孩子们做任何事。根据“We’ve never…”可知，本句是否定句，否定句中用anything“任何事”，something用于肯定句。故填anything。 4．句意： 他们这么做是因为他们想这样做。“they want to”是解释前文“They are doing this”的原因， 前后为因果关系，所以用because“因为”引导原因。故填because。 5．句意： 如果一位访客参观学校，他不会看到到处都是垃圾。本句是if引导的条件状语从句，时态上遵循“主将从现” 原则，从句用一般现在时，主语是单数名词，谓语动词用三单形式takes。故填takes。 6．句意： 所有物品被收集并重复利用。根据“is... and reused,” 可知，这里用被动语态，空处需要collect的过去分词collected。故填collected。 7．句意： 甚至家长也参与了这项活动。根据“took part”可知，此处考查固定搭配take part in“参与”，故填in。 8．句意：学校有自己的花园，他们在那里种植蔬菜和鲜花。根据“vegetables”和“flowers”及语境可知，两者是并列关系，所以用and连接。故填and。 9．句意：与此同时，垃圾袋的数量从每周七个减少到两三个。本段时态是现在时，“the number of+名词”作主语时，谓语用三单形式has。故填has。 10．句意： 在阳光小学，到处都有特别的海报，要求大家把垃圾带回家，节约能源。根据“there are”可知， 主语需用复数名词，故填posters。 阅读下面短文，在空白处填入括号内单词的正确形式。 Giraffes are the world’s tallest land animal. At birth, a baby giraffe is about 1.8 meters tall and 1 (weigh) about 68 kilos. Male (雄性的) giraffes can grow up to 5.5 meters tall and weigh 1,360 kilos. Females (雌性) can be up to 4.6 meters in height and 725 kilos in weight. A giraffe’s tongue is 2 (usual) black, blue or purple. It can be about 50cm long. That means the animal can use 3 (it) tongue to get food high in the tree. Giraffes can live about 25 years in the wild if they are 4 (health). In the zoo, they can live longer. Giraffes often live in groups of 10 to 20. A group of giraffes 5 (call) a “tower”. Giraffes’ groups can change every day, even from hour to hour. A “tower” of giraffes you see today might not be the same one you see tomorrow. It’s 6 (amaze), isn’t it? Living in groups offers many advantages to giraffes. It provides 7 (safe) in numbers and helps giraffes share information about food and water. Giraffes play an important role in nature. But now they are in danger. The number of giraffes is getting smaller. People 8 (hunt) giraffes for a long time for their meat, coats and tails. Habitat loss (栖息地丧失) is the 9 (big) problem. Giraffes are truly special animals. Learning about 10 (problem) they face helps us protect them. Let’s take action and do something for these cute animals. 【答案】 1．weighs 2．usually 3．its 4．healthy 5．is called 6．amazing 7．safety 8．have hunted 9．biggest 10．problems 【导语】本文主要介绍了长颈鹿的生理特征、生活习性以及它们面临的生存威胁。 1．句意：出生时，长颈鹿宝宝身高约1.8米，体重约68公斤。时态是一般现在时，主语是“a baby giraffe”，动词用三单。故填weighs。 2．句意：长颈鹿的舌头通常是黑色、蓝色或紫色的。此处需用副词usually修饰形容词，故填usually。 3．句意：这意味着这种动物可以用舌头在树上高处获取食物。此处作定语修饰“tongue”，用形容词性物主代词，故填its。 4．句意：如果健康的话，长颈鹿在野外可以活25年左右。此处在句中作表语表示“健康”，用形容词healthy“健康的”，故填healthy。 5．句意：一群长颈鹿被称为“塔”。本句主语是动作的承受者，时态是一般现在时，所以用一般现在时的被动语态，主语“A group of giraffes”为单数，be动词用was。故填is called。 6．句意：太神奇了，不是吗？此处在句中作表语形容事物，用形容词amazing“神奇的”，故填amazing。 7．句意：它提供了数量上的安全，并帮助长颈鹿分享食物和水的信息。此处在动词后作宾语，用名词safety“安全”，故填safety。 8．句意：长期以来，人们猎取长颈鹿的肉、皮毛和尾巴。根据“for a long time”可知，时态是现在完成时，主语是复数，助动词用have。故填have hunted。 9．句意：栖息地的丧失是最大的问题。定冠词the后用形容词最高级，故填biggest。 10．句意：了解他们面临的问题有助于我们保护他们。此处表示复数含义，使用名词复数形式，故填problems。 阅读下面短文，在空白处填入适当的单词或括号内单词的适当形式。 The ocean is full of amazing creatures. It’s also full of plastic. That’s bad news for deep-diving whales, as they can mistake the plastic for food and eat it. How do whales mix 1 plastic and prey (猎物)? A team at the Duke University Marine Lab in the US has been looking into this question. Recently, the team 2 (provide) an answer. It all comes down to echolocation (回声定位): a natural process that allows whales to “hear” objects in the darkest depths of the sea. Some types of whales hunt in the deepest parts of the ocean, where there’s little light. It’s too dark for them to see, but they 3 (hear). First, the whales make a sound, and then they listen. They hear echoes bouncing off (反射) nearby objects. 4 (this) echoes allow the whales to hunt. The echoes bounce off prey, like squid (鱿鱼), and they also bounce off objects 5 are not food, like garbage. The scientists found that garbage and prey cause similar echoes. To the whales, they “sound” the same. That can cause the whales 6 (eat) garbage. However, eating garbage is dangerous for whales. The plastic can build up in their stomachs, preventing food from 7 (pass) through their bodies. This can be deadly. “Plastic 8 (pollute) affects animals that are so far away from our daily lives,” says Greg Merrill the lead author of the study. “This problem is 9 (real) big. People need to make real changes in their daily lives and then 10 (find) the types of solutions; we need to save this problem.” 【答案】 1．up 2．has provided 3．can hear 4．These 5．that/which 6．to eat 7．passing 8．pollution 9．really 10．find 【导语】本文主要讲述美国杜克大学海洋实验室的研究团队探究鲸鱼误将塑料当作猎物的原因，揭示了海洋塑料污染对深海鲸鱼的危害，并呼吁人们改变生活方式解决问题。 1．句意：鲸鱼如何将塑料和猎物混在一起？根据“How do whales mix…plastic and prey?”可知，此处考查短语mix up，表示“混淆”，指鲸鱼混淆塑料和猎物。故填up。 2．句意：最近，该团队已经提供了一个答案。根据“Recently, the team…an answer.”可知，recently是现在完成时的标志，结构为have/has+过去分词，主语the team是单数，应用has provided。故填has provided。 3．句意：太黑了，它们看不见，但可以听见。根据“It’s too dark for them to see, but they….”可知，前后句为转折关系，前文提到“看不见”，后文应表示“能听见”，用情态动词can+动词原形。故填can hear。 4．句意：这些回声让鲸鱼能够捕猎。根据“…echoes allow the whales to hunt.”可知，空后echoes是复数，应用this的复数形式these，句首首字母大写。故填These。 5．句意：回声从猎物上反射，也从非食物的物体上反射。根据“objects…are not food”可知，先行词objects指物，在从句中作主语，可用that或which引导定语从句。故填that/which。 6．句意：这可能导致鲸鱼吃垃圾。根据“That can cause the whales…garbage.”可知，此处考查cause sb to do sth，表示“导致某人做某事”，应用不定式to eat。故填to eat。 7．句意：塑料会在它们的胃里堆积，阻止食物通过身体。根据“preventing food from…through their bodies”可知，from是介词，后接动名词作宾语，pass的动名词为passing。故填passing。 8．句意：塑料污染影响着远离我们日常生活的动物。根据“Plastic…affects animals”可知，主语需用名词形式，pollute的名词为pollution，是不可数名词。故填pollution。 9．句意：这个问题真的很严重。根据“This problem is…big.”可知，修饰形容词big需用副词，real的副词为really。故填really。 10．句意：人们需要在日常生活中做出真正的改变，然后找到解决办法。根据“People need to make real changes… and then…the types of solutions”可知，and连接并列的不定式结构，to省略，此处用动词原形find与make并列。故填find。 根据短文内容，在横线上填上适当单词，使短文完整、通顺。给出单词的空格不限一词，没有给出单词的空格限一词。 Did ancient people plant trees? They didn’t have a special day to plant trees like Tree Planting Day, 1 the tradition of planting trees has been there for a long time. Back then, it was always 2 (rain) around the Qingming Festival in spring. The trees that were planted around this time had better conditions to grow than usual, so people formed the custom of planting trees around the Qingming Festival. There were many kinds of trees. However mulberry trees (桑树) and fruit trees were 3 (popular) of all. To feed the silkworms (蚕), more mulberry leaves 4 (need). Silk came from the silkworms, and then was made into silk clothes and traded 5 the east and the west of the world. Among the ancient people who suggested 6 (get) trees to offer food and clothes, there was a man whose name is well-known, Mencius (孟子). Dong Feng, a famous doctor in the Three Kingdom Period (三国时期), saved many 7 (patient) lives for free. He only asked them to plant apricot trees (杏树) on a hill. Gradually, a forest of apricot trees grew on the hill. That’s 8 we now praise a doctor who has excellent skills with the words “warmth in an apricot forest.” Each dynasty has different tree planting projects. Li Shimin, Emperor Taizong of the Tang Dynasty personally planted a ginkgo tree (银杏树) in a temple in Chang’an. 1,400 years later, the ginkgo tree is still growing. So far, the temple 9 (become) a popular place for tourists. So, 10 Tree Planting Day next year, do you want to plant a tree? 【答案】 1．but 2．rainy 3．the most popular 4．were needed 5．between 6．getting 7．patients’ 8．why 9．has become 10．on 【导语】本文主要介绍了古代人的种树传统。 1．句意：他们没有像植树节这样的特殊植树日，但植树的传统已经存在很长时间了。根据“They didn’t have a special day to plant trees like Tree Planting Day,…the tradition of planting trees has been there for a long time”可知，前后两句是转折关系，用but连接。故填but。 2．句意：那时，春天的清明节前后总是下雨。根据“it was always…”可知，此处需填一个形容词作表语，rainy是其形容词形式。故填rainy。 3．句意：然而，桑树和果树是最受欢迎的。根据“of all”可知此处用最高级most popular，形容词最高级前加定冠词the。故填the most popular。 4．句意：喂蚕需要更多的桑叶。主语more mulberry leaves和谓语need之间是被动关系，动作发生在过去，用一般过去时的被动语态，主语是名词复数，be动词用were。故填were needed。 5．句意：丝绸来自蚕，然后被制成丝绸衣服，在东西方之间进行贸易。根据“the east and the west of the world”可知，此处表示在东西方之间进行贸易，between…and“在……和……之间”。故填between。 6．句意：在古代人们建议用树来提供食物和衣服的人中，有一个人的名字很有名，他就是孟子。suggest doing sth.“建议做某事”，固定短语。故填getting。 7．句意：三国时期的名医董峰免费挽救了许多病人的生命。根据“many…lives”可知，此处用名词复数的所有格patients’“病人的”修饰名词lives。故填patients’。 8．句意：这就是为什么我们现在用“杏林温暖”来赞美一位医术高超的医生。根据“we now praise a doctor who has excellent skills with the words ‘warmth in an apricot forest.’”可知，此处表示“这就是为什么”，that’s why符合语境，故填why。 9．句意：到目前为止，这座寺庙已成为游客的热门景点。根据“So far”可知，句子用现在完成时，主语是the temple，助动词用has。故填has become。 10．句意：所以，在明年的植树节，你想种一棵带着你愿望的树吗？空后是具体某一天，用介词on。故填on。 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Recycling is good for the environment. It is not only good for nature 1 also benefits a community in surprising ways. Mateo Lange, 15, knows this well. On weekends, you’ll find him classifying through glass and plastic bottles and aluminum (铝) cans in his hometown of Indian River, Michigan, where he leads a community recycling program. Mateo set up 2 program in 2020. At that time, he was 11 and in the sixth grade, playing baseball with the Northern Michigan Cyclones. The team was new and needed money 3 (travel) to tournaments (锦标赛), so Mateo made a plan. “There were cans and bottles always thrown around the road,” he says. In Michigan, they can 4 (collect) and sold for money. 5 his dad’s help, Mateo started a ‘bottle and can’ drive. “We raised $7500 in just a few weeks,” he says. “So Why don’t 6 (us) keep this going as long as we can?” Since then, Mateo’s recycling effort 7 (make) a great difference and helped at least 50 local youth groups. It has also prevented more than 2 million 8 (bottle) and cans from being littered along the roadside and polluting Michigan’s lakes and rivers. “It has made our community much 9 (clean),” he says. Matteo and his dad also did pickups. “It was 10 (actual) a lot of fun,” he says, “especially in the summer time.” Mateo believes everyone can and should be of service. “Just do a little bit to help make the world a better place,” he says. “Be creative,” he adds. “Have an idea and build on it.” 【答案】 1．but 2．the 3．to travel 4．be collected 5．With 6．we 7．has made 8．bottles 9．cleaner 10．actually 【导语】本文讲述了Mateo Lange在家乡进行着一个社区回收项目，利用周末时间分类玻璃、塑料瓶和罐头等垃圾，使得社区变得更环保以及给社区带来经济收益的事情。 1．句意：它不仅对自然有益，而且对社区也有意想不到的好处。根据“Recycling is good for the environment”及常识可知，回收利用不仅对自然有益，“而且”对社区也有意想不到的好处，应用but与之构成连词短语，“not only…but also…”表示“不仅……而且……”，表达两个或多个事物、情况或观点之间的递进关系。故填but。 2．句意：马特奥在2020年设立了这个项目。根据“you’ll find him classifying through glass and plastic bottles and aluminum cans in his hometown…where he leads a community recycling program.”及“…program”可知，此处指马特奥在2020设立了“这个”项目，应用定冠词the表特指。故填the。 3．句意：这支队伍是新组建的，需要钱去参加比赛，所以马特奥制定了一个计划。根据“…to tournaments”及语境可知，此处指需要钱“去参加锦标赛”，应用提示词travel“旅行，周游，走遍”的不定式作目的状语，“travel to tournaments”表示“参加比赛”。故填to travel。 4．句意：在密歇根州，它们可以被收集起来卖钱。根据前句“There were cans and bottles always thrown around the road”可知，该句主语they应指这些“瓶子和罐子”，为第三人称复数形式，提示词collect“收集”为动词，两者之间表示被动关系，且全句描述的过去的事情，时态应为一般过去时，则空处应用一般过去时的被动语态，其结构为“were done”。故填be collected。 5．句意：马特奥在父亲的帮助下开启了“瓶子和罐子”的活动。根据“…his dad’s help, Mateo started a ‘bottle and can’drive”及语境可知，此处指“在父亲的帮助下”，应用介词with与之构成介词短语，“with sb’s help”意为“在某人的帮助下”，且句首首字母大写。故填With。 6．句意：所以我们为什么不尽可能地保持下去呢？根据语境及“So why don’t…keep this…”可知，该句缺主语，应用提示词us“我们”的代词主格形式we作主语。故填we。 7．句意：从那时起，马特奥的回收工作产生了巨大的影响，并帮助了至少50个当地青年团体。根据时间状语“Since then”可知，该句时态应为现在完成时，其结构为“have/has done”，该句主语“Mateo’s recycling effort”表示“马特奥的回收工作”这件事，表示单数概念，助动词应用has，提示词make的过去分词形式为made，“has made a great difference”表示“产生了很大的影响”。故填has made。 8．句意：它还防止了200多万个瓶子和罐子被扔在路边，污染了密歇根州的湖泊和河流。根据“more than 2 million…and cans”可知，此处指“200多万个瓶子和罐子”，应用提示词bottle“瓶子”的复数形式表泛指。故填bottles。 9．句意：它使我们的社区更加干净。根据“made our community much…”可知，此处指“使我们社区更……”，应用提示词clean“干净的”的比较级形式，“much cleaner”表示“更加干净的”。故填cleaner。 10．句意：“这其实很有趣，”他说，“尤其是在夏天”。根据“It was…a lot of fun”可知，该句结构完整，此处应用提示词actual”真实的，实际的“的副词形式actually与之搭配，意为“实际上，事实上”。故填actually。 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。 According to a report, more than 41 million trees are cut down every day around the world. When you hear this number, you may think more trees should be 1 (plant) to help the environment. But Rome wasn’t built in 2 day and neither are forests. Luckily, Ecosia, a search engine (搜索引擎), is trying to do something to help. It gives away most of its money it makes from ads to tree-planting projects. It means that you can help plant trees just by 3 (watch) ads on the search engine. Ecosia was started by Christian Kroll in 2009. 4 he was learning business at university, Kroll learned how search engines worked and 5 (think) they could raise money for good causes (善举). While traveling after 6 (he) studies, Kroll saw the huge influence of deforestation (滥伐森林) in Argentina and found his good cause: planting trees. “I want to make the world a 7 (green), better place,” he said. Ecosia has around 20 million users and it takes about 45 8 (search) to raise enough money to plant one tree. By 2009, Ecosia has helped plant 9 (many) than 164 million trees in over 35 countries. The tree-planting projects it works with also help to create jobs in countries 10 Burkina Faso and Indonesia, protect endangered animals, and educate people. 【答案】 1．planted 2．a/one 3．watching 4．While/When 5．thought 6．his 7．greener 8．searches 9．more 10．like 【导语】本文主要介绍了搜索引擎Ecosia开展植树项目，以及这个项目带来的好处。 1．句意：当你听到这个数字时，你可能会认为应该种植更多的树木来保护环境。根据“more trees should be ...”可知，此处表达“更多树应该被种”，主语“more trees”和动词plant之间是被动关系，且是含有情态动词的被动语态，结构为“情态动词+be+过去分词”，plant的过去分词是planted。故填planted。 2．句意：但罗马不是一天建成的，森林的形成亦是如此。根据“Rome wasn’t built in ... day”可知，此处表达“罗马不是一天建成的”，day是可数名词，需填入a/one“一”。故填a/one。 3．句意：这意味着你只需在搜索引擎上观看广告，就能助力植树。空格前的by意为“凭借；通过”，是介词，后跟动词-ing形式。故填watching。 4．句意：Kroll在大学学习商科时，了解了搜索引擎的运作方式，并认为它们可以为善举筹集资金。根据“... he was learning business at university”可知，这是一个时间状语从句，介绍动作发生的时间背景，表达“当他在大学学习商科时”，while/when都有“当……时”之意，符合语境，句首字母要大写。故填While/When。 5．句意：Kroll在大学学习商科时，了解了搜索引擎的运作方式，并认为它们可以为善举筹集资金。根据“Kroll learned how search engines worked and ... they could raise money for good causes”可知，该句时态为一般过去时，谓语动词用过去式，think的过去式是thought。故填thought。 6．句意：学业结束后旅行期间，Kroll目睹了阿根廷滥伐森林带来的巨大影响，从而找到了他要做的善举：植树造林。根据“While traveling after ... studies”可知，需填入形容词性物主代词，修饰名词studies，表示“他的学业”，he的形容词性物主代词是his。故填his。 7．句意：我想让世界变得更绿、更美好。根据“I want to make the world a ..., better place”可知，需填入和better一致的比较级，green的比较级是greener，意为“更绿的”，符合语境。故填greener。 8．句意：Ecosia约有2000万用户，大约需要进行45次搜索就能筹集到足够资金种下一棵树。根据“it takes about 45 ... to raise...”可知，此处search是名词，位于数字45后，search要用复数形式。故填searches。 9．句意：截至2009年，Ecosia已助力在35个以上的国家种植了超过1.64亿棵树。句中有than，需填入many的比较级more，“more than”意为“超过，多于”，符合语境。故填more。 10．句意：它所合作的植树项目还有助于在布基纳法索和印度尼西亚等国家创造就业机会、保护濒危动物和开展科普教育。根据“countries ... Burkina Faso and Indonesia”可知，这两个是举例的国家，介词like意为“像；例如”，符合语境。故填like。 重难语篇提升练 阅读下面短文，在空白处填入恰当的单词，或用括号内所给单词的正确形式填空，使短文内容完整。 Did ancient people plant trees? They didn’t have a special day to plant trees like Tree Planting Day, 1 the tradition of planting trees has been there for a long time. Back then, it was always 2 (rain) around the Qingming Festival in spring. The trees that 3 (plant) around this time had better conditions to grow than usual, so people formed the custom of planting trees around the Qingming Festival. There were many 4 (kind) of trees. However mulberry trees (桑树) and fruit trees were 5 (popular) of all. To feed the silkworms (蚕), more mulberry leaves were needed. Silk came from the silkworms, and then was made into silk clothes and traded between the east and the west of the world. Among the ancient people who suggested 6 (get) trees to offer food and clothes, there was a man whose name is well-known, Mencius (孟子). Dong Feng, a famous doctor in the Three Kingdom Period (三国时期), saved many patients’ lives for free. He only asked them to plant apricot trees (杏树) on a hill. Gradually, a forest of apricot trees grew the hill. That’s 7 we now praise a doctor who has excellent skills with the words “warmth in an apricot forest.” Each dynasty has different tree planting projects. Li Shimin, Emperor Taizong of the Tang Dynasty 8 (person) planted a ginkgo tree (银杏树) in a temple in Chang’an. 1,400 years later, the ginkgo tree is still growing. So far, the temple 9 (become) a popular place for tourists. So, 10 Tree Planting Day next year, do you want to plant a tree with your wishes on it? 【答案】 1．but 2．rainy 3．were planted 4．kinds 5．the most popular 6．getting 7．why 8．personally 9．has become 10．on 【导语】本文是一篇说明文，主要讲述古代种树传统由来已久，介绍种树习俗、受欢迎的树种、相关故事及历朝种树项目。 1．句意：他们没有像植树节那样专门种树的日子，但是种树的传统已经存在很长时间了。but表示转折关系，连接前后两个意思相反的句子，符合语境。故填but。 2．句意：那时候，春天清明节前后总是下雨。rainy是形容词，意为“下雨的”，在句中作表语，描述天气状况。故填rainy。 3．句意：在这个时候种下的树比平时有更好的生长条件，所以人们形成了在清明节前后种树的习惯。“that”指代“trees”，与“plant”之间是被动关系，且根据“Back then”可知是过去时，所以用一般过去时的被动语态“were planted”。故填were planted。 4．句意：有很多种类的树。many修饰可数名词复数，kind意为“种类”，其复数形式是“kinds”。故填kinds。 5．句意：然而，桑树和果树是最受欢迎的。popular是形容词，“of all”表示在所有当中，要用最高级形式，popular的最高级是“the most popular”。故填the most popular。 6．句意：在建议种树以提供食物和衣服的古代人中，有一个很有名的人，他就是孟子。suggest doing sth.表示“建议做某事”，所以用get的动名词形式“getting”。故填getting。 7．句意：这就是我们现在用“杏林春暖”来赞扬医术高明的医生的原因。“That’s why...”表示“那就是……的原因”，符合语境。故填why。 8．句意：唐太宗李世民亲自在长安的一座寺庙里种了一棵银杏树。personally是副词，意为“亲自地”，修饰动词“planted”，符合语境。故填personally。 9．句意：到目前为止，这座寺庙已成为游客喜爱的地方。so far常与现在完成时连用，指的是过去发生的事情对现在造成的影响，或过去的动作持续到现在。其结构为“have/has + 过去分词”，become的过去分词是become，主语为the temple。故填has become。 10．句意：那么，明年的植树节，你想在树上写下你的愿望吗？“Tree Planting Day”是具体的某一天，前面要用介词“on”。故填on。 阅读下面短文，在空白处填入适当的内容（不多于3个单词）或括号内单词的适当形式。 A village primary school in Yunnan province has surprised everyone. The school with more than 1,000 teachers and students has achieved food self-sufficiency (自给自足) by offering farming for students. Jingwai Mingde Primary School is made up of five local village primary schools. 1 2008, it has been paying attention to students’ development through labor (劳动) education. Provided with about 150 mu of farmland, students can 2 (take) part in farm chores. Students do farm chores 3 (two) a week with the help of the teachers. After entering Grade 3, each class is 4 (give) a piece of land to plant vegetables or keep animals. The vegetables and animals will be used for their daily meals. In the process of planting, students gradually feel the 5   (difficult) of farmwork and will value the food more in the future. There is also a zoo in the school raising some special animals. Every time students see these animals, they always reach out their hands excitedly to feed 6 (they). While opening up their mind, students can also learn how 7 (get) along with animals. The school built a greenhouse (温室) with fruit trees 8 medicinal herbs (中草药). Besides listening to teachers in the classroom, students are also able to learn about knowledge of plants in nature. According 9 headmaster Lei Yingfei, through labor (劳动) education, developed a sense of teamwork, as well as improved their performance of cultural courses. “ 10 (child) who have not kissed the land will not have a complete childhood. The farm labor will build excellent characters that last a lifetime,” he said. 【答案】 1．Since 2．take 3．twice 4．given 5．difficulty 6．them 7．to get 8．and 9．to 10．Children 【导语】本文是一篇说明文。主要介绍了云南省的一个村庄小学通过为学生提供农耕活动，实现了食物自给自足。 1．句意：自2008年以来，它一直关注学生的劳动发展教育。根据“it has been paying attention to students’ development through labor (劳动) education.”可知本句时态为现在完成进行时，此处应是表达“自从2008”，since“自从”，句首首字母大写。故填Since。 2．句意：在农田里，学生可以参加农活。根据“students can … (take) part in farm chores.”可知，句中can为情态动词，后跟动词原形，故take应用其动词原形。故填take。 3．句意：在老师的帮助下，学生每周做两次农活。根据“Students do farm chores … (two) a week with the help of the teachers.”结合提示词可知，此处表达一周两次，twice“两次”。故填twice。 4．句意；进入三年级后，每个班都有一块地用来种蔬菜或养动物。根据“each class is … (give) a piece of land to plant vegetables or keep animals.”可知，本句主语为each class “每次课”且空前有is，因而此处应是被动语态，give应用其过去分词 given。故答案为given。 5．句意：在种植的过程中，学生们逐渐感受到了农活的艰难，以后会更加珍惜食物。根据“students gradually feel the … (difficult) of farmwork and will value the food more in the future.”可知，空前有冠词the，后有介词of，因而空处应为difficult的名词形式difficulty。故填difficulty。 6．句意：每次学生看到这些动物，他们总是兴奋地伸出手去喂他们。根据“they always reach out their hands excitedly to feed”可知，此处应用they的宾格them作动词feed的宾语。故填them。 7．句意：在开拓思维的同时，学生们还可以学习如何与动物相处。根据“students can also learn how … (get) along with animals.”的句子结构再结合句意可知，此处应是特殊疑问词+动词不定式的结构，此处应用to get。故填to get。 8．句意：学校建了一个温室，种上了果树和草药。根据“The school built a greenhouse (温室) with fruit trees … medicinal herbs (中草药).”可知，句中fruit trees和medicinal herbs (中草药)构成并列短语，此处应用and表示并列关系。故填and。 9．句意：校长雷英飞表示，通过劳动教育，学生们学会了基本的生活技能，培养了团队合作意识，也提高了他们在文化课上的表现。根据“According … headmaster Lei Yingfei,”可知，此处考查短语 according to“根据”。故填to。 10．句意：没有亲亲土地的孩子不会有一个完整的童年。根据“… (child) who have not kissed the land will not have a complete childhood.”的句子结构可知，此处为定语从句，关系词为who，在定语从句作主语，从句时态为一般现在时，根据从句谓语动词为动词原形可知，先行词应用child的复数形式children，句首首字母大写。故答案为Children。 学科网（北京）股份有限公司 $ Unit 2 Saving the Earth 单元话题语法填空练习 Unit 2 Saving the Earth单元话题：环境保护 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 阅读下面短文，根据上下文或者括号内的提示，用单词的正确形式填空。     When nature meets man-made roads, it’s seldom a good thing. A large number of animals get killed by cars every week. So engineers try to build green bridges. These bridges help keep animals and people 1 (safety).     The idea of green bridges isn’t really new. The first one was built in France in the 1950s. As well as Germany, which 2 (add) more than 800 green bridges since 1950, Canada and the United States are also trying to protect local wildlife 3 building animal bridges over the years.       4 there are different kinds of green bridges, their designs are similar. First, they are usually quite wide, giving animals plenty of room to move. Second, they 5 (cover) with soil and plants to look like the forest or land on 6 side of the roads. Lastly, they are wider at the ends, spreading out where they meet the land. This helps collect animals to the bridge and guide them out when they leave.     People may wonder 7 the green bridges really work. Since 1996, there have been 11 kinds of big animals in Canada’s Banff National Park. These animals include bears, elk and cougars. They have walked across green bridges more than 200,000 times. What’s more, in some places where these green bridges were built, 8 number of accidents between animals and cars has gone down by 90%.     These crossings are clearly a step in the right direction to 9 (offer) safety to wildlife. And with these bridges, both animal and human 10 (dead) on roads will continue to go down. This is the year 2070. Today is my 1 (fifty) birthday, but I look like a person of eighty-five. I have a serious kidney (肾脏) problem because I don’t have enough water 2 (drink). I’m afraid I don’t have much time left to live. I’m already one of the oldest people in this society. I remember when I was five years old, everything was very different. There were lots of trees in the parks. I could enjoy a shower for half 3 hour. At that time, 4 (woman) all had beautiful hair. Now, we have to shave (剃光) our heads to keep them clean without the use of water. I remember there were “Saving Water” warnings in many public places, but nobody 5 (pay) attention. We believed water would last forever. Now, all the rivers and lakes are either dry polluted. Water is much 6 (expensive) than gold and diamonds. In the past, doctors suggested adults drink eight glasses 7 water a day. Nowadays, I 8 (allow) half a glass only. Most people are weak and sick. When my son asks me about my childhood, I tell him about how pleasant it was to fish in the rivers 9 how healthy people were. When he asks, “Why is there no clean water now?” I feel guilty (有罪的). I belong to those people who simply turned a blind eye to all the warnings. I hope the people living in the 2020s 10 (true) understand the importance of saving water. It’s time to go home in the afternoon. However, the kids at Sunshine Primary School are 1 (surprising) quiet. Instead of the usual 2 (shout) and running, you can hear them asking each other, “Are the lights all off?” “Shall we check the taps to make sure they are not dripping (滴水)?” or “How many napkins did we use today?” “We’ve never made the children do 3 (something),” explains the school headmaster. “They came up with all the ideas themselves. They are doing this 4 they want to.” If a visitor 5 (take) a look around the school, he won’t see rubbish everywhere. Everything is 6 (collect) and reused, or sent to be recycled. Sunshine Primary School started being green two years ago. Even parents took part 7 this activity. The school has its own garden where they grow vegetables 8 flowers. In this way, they can learn about the environment. Even the school’s heating and light bills have dropped. At the same time, the number of rubbish bags 9 (have) gone down from seven a week to two or three. Everywhere in Sunshine Primary School, there are special 10 (poster) asking everyone to take their rubbish home and save energy. 阅读下面短文，在空白处填入括号内单词的正确形式。 Giraffes are the world’s tallest land animal. At birth, a baby giraffe is about 1.8 meters tall and 1 (weigh) about 68 kilos. Male (雄性的) giraffes can grow up to 5.5 meters tall and weigh 1,360 kilos. Females (雌性) can be up to 4.6 meters in height and 725 kilos in weight. A giraffe’s tongue is 2 (usual) black, blue or purple. It can be about 50cm long. That means the animal can use 3 (it) tongue to get food high in the tree. Giraffes can live about 25 years in the wild if they are 4 (health). In the zoo, they can live longer. Giraffes often live in groups of 10 to 20. A group of giraffes 5 (call) a “tower”. Giraffes’ groups can change every day, even from hour to hour. A “tower” of giraffes you see today might not be the same one you see tomorrow. It’s 6 (amaze), isn’t it? Living in groups offers many advantages to giraffes. It provides 7 (safe) in numbers and helps giraffes share information about food and water. Giraffes play an important role in nature. But now they are in danger. The number of giraffes is getting smaller. People 8 (hunt) giraffes for a long time for their meat, coats and tails. Habitat loss (栖息地丧失) is the 9 (big) problem. Giraffes are truly special animals. Learning about 10 (problem) they face helps us protect them. Let’s take action and do something for these cute animals. 阅读下面短文，在空白处填入适当的单词或括号内单词的适当形式。 The ocean is full of amazing creatures. It’s also full of plastic. That’s bad news for deep-diving whales, as they can mistake the plastic for food and eat it. How do whales mix 1 plastic and prey (猎物)? A team at the Duke University Marine Lab in the US has been looking into this question. Recently, the team 2 (provide) an answer. It all comes down to echolocation (回声定位): a natural process that allows whales to “hear” objects in the darkest depths of the sea. Some types of whales hunt in the deepest parts of the ocean, where there’s little light. It’s too dark for them to see, but they 3 (hear). First, the whales make a sound, and then they listen. They hear echoes bouncing off (反射) nearby objects. 4 (this) echoes allow the whales to hunt. The echoes bounce off prey, like squid (鱿鱼), and they also bounce off objects 5 are not food, like garbage. The scientists found that garbage and prey cause similar echoes. To the whales, they “sound” the same. That can cause the whales 6 (eat) garbage. However, eating garbage is dangerous for whales. The plastic can build up in their stomachs, preventing food from 7 (pass) through their bodies. This can be deadly. “Plastic 8 (pollute) affects animals that are so far away from our daily lives,” says Greg Merrill the lead author of the study. “This problem is 9 (real) big. People need to make real changes in their daily lives and then 10 (find) the types of solutions; we need to save this problem.” 根据短文内容，在横线上填上适当单词，使短文完整、通顺。给出单词的空格不限一词，没有给出单词的空格限一词。 Did ancient people plant trees? They didn’t have a special day to plant trees like Tree Planting Day, 1 the tradition of planting trees has been there for a long time. Back then, it was always 2 (rain) around the Qingming Festival in spring. The trees that were planted around this time had better conditions to grow than usual, so people formed the custom of planting trees around the Qingming Festival. There were many kinds of trees. However mulberry trees (桑树) and fruit trees were 3 (popular) of all. To feed the silkworms (蚕), more mulberry leaves 4 (need). Silk came from the silkworms, and then was made into silk clothes and traded 5 the east and the west of the world. Among the ancient people who suggested 6 (get) trees to offer food and clothes, there was a man whose name is well-known, Mencius (孟子). Dong Feng, a famous doctor in the Three Kingdom Period (三国时期), saved many 7 (patient) lives for free. He only asked them to plant apricot trees (杏树) on a hill. Gradually, a forest of apricot trees grew on the hill. That’s 8 we now praise a doctor who has excellent skills with the words “warmth in an apricot forest.” Each dynasty has different tree planting projects. Li Shimin, Emperor Taizong of the Tang Dynasty personally planted a ginkgo tree (银杏树) in a temple in Chang’an. 1,400 years later, the ginkgo tree is still growing. So far, the temple 9 (become) a popular place for tourists. So, 10 Tree Planting Day next year, do you want to plant a tree? 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Recycling is good for the environment. It is not only good for nature 1 also benefits a community in surprising ways. Mateo Lange, 15, knows this well. On weekends, you’ll find him classifying through glass and plastic bottles and aluminum (铝) cans in his hometown of Indian River, Michigan, where he leads a community recycling program. Mateo set up 2 program in 2020. At that time, he was 11 and in the sixth grade, playing baseball with the Northern Michigan Cyclones. The team was new and needed money 3 (travel) to tournaments (锦标赛), so Mateo made a plan. “There were cans and bottles always thrown around the road,” he says. In Michigan, they can 4 (collect) and sold for money. 5 his dad’s help, Mateo started a ‘bottle and can’ drive. “We raised $7500 in just a few weeks,” he says. “So Why don’t 6 (us) keep this going as long as we can?” Since then, Mateo’s recycling effort 7 (make) a great difference and helped at least 50 local youth groups. It has also prevented more than 2 million 8 (bottle) and cans from being littered along the roadside and polluting Michigan’s lakes and rivers. “It has made our community much 9 (clean),” he says. Matteo and his dad also did pickups. “It was 10 (actual) a lot of fun,” he says, “especially in the summer time.” Mateo believes everyone can and should be of service. “Just do a little bit to help make the world a better place,” he says. “Be creative,” he adds. “Have an idea and build on it.” 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。 According to a report, more than 41 million trees are cut down every day around the world. When you hear this number, you may think more trees should be 1 (plant) to help the environment. But Rome wasn’t built in 2 day and neither are forests. Luckily, Ecosia, a search engine (搜索引擎), is trying to do something to help. It gives away most of its money it makes from ads to tree-planting projects. It means that you can help plant trees just by 3 (watch) ads on the search engine. Ecosia was started by Christian Kroll in 2009. 4 he was learning business at university, Kroll learned how search engines worked and 5 (think) they could raise money for good causes (善举). While traveling after 6 (he) studies, Kroll saw the huge influence of deforestation (滥伐森林) in Argentina and found his good cause: planting trees. “I want to make the world a 7 (green), better place,” he said. Ecosia has around 20 million users and it takes about 45 8 (search) to raise enough money to plant one tree. By 2009, Ecosia has helped plant 9 (many) than 164 million trees in over 35 countries. The tree-planting projects it works with also help to create jobs in countries 10 Burkina Faso and Indonesia, protect endangered animals, and educate people. 重难语篇提升练 阅读下面短文，在空白处填入恰当的单词，或用括号内所给单词的正确形式填空，使短文内容完整。 Did ancient people plant trees? They didn’t have a special day to plant trees like Tree Planting Day, 1 the tradition of planting trees has been there for a long time. Back then, it was always 2 (rain) around the Qingming Festival in spring. The trees that 3 (plant) around this time had better conditions to grow than usual, so people formed the custom of planting trees around the Qingming Festival. There were many 4 (kind) of trees. However mulberry trees (桑树) and fruit trees were 5 (popular) of all. To feed the silkworms (蚕), more mulberry leaves were needed. Silk came from the silkworms, and then was made into silk clothes and traded between the east and the west of the world. Among the ancient people who suggested 6 (get) trees to offer food and clothes, there was a man whose name is well-known, Mencius (孟子). Dong Feng, a famous doctor in the Three Kingdom Period (三国时期), saved many patients’ lives for free. He only asked them to plant apricot trees (杏树) on a hill. Gradually, a forest of apricot trees grew the hill. That’s 7 we now praise a doctor who has excellent skills with the words “warmth in an apricot forest.” Each dynasty has different tree planting projects. Li Shimin, Emperor Taizong of the Tang Dynasty 8 (person) planted a ginkgo tree (银杏树) in a temple in Chang’an. 1,400 years later, the ginkgo tree is still growing. So far, the temple 9 (become) a popular place for tourists. So, 10 Tree Planting Day next year, do you want to plant a tree with your wishes on it? 阅读下面短文，在空白处填入适当的内容（不多于3个单词）或括号内单词的适当形式。 A village primary school in Yunnan province has surprised everyone. The school with more than 1,000 teachers and students has achieved food self-sufficiency (自给自足) by offering farming for students. Jingwai Mingde Primary School is made up of five local village primary schools. 1 2008, it has been paying attention to students’ development through labor (劳动) education. Provided with about 150 mu of farmland, students can 2 (take) part in farm chores. Students do farm chores 3 (two) a week with the help of the teachers. After entering Grade 3, each class is 4 (give) a piece of land to plant vegetables or keep animals. The vegetables and animals will be used for their daily meals. In the process of planting, students gradually feel the 5   (difficult) of farmwork and will value the food more in the future. There is also a zoo in the school raising some special animals. Every time students see these animals, they always reach out their hands excitedly to feed 6 (they). While opening up their mind, students can also learn how 7 (get) along with animals. The school built a greenhouse (温室) with fruit trees 8 medicinal herbs (中草药). Besides listening to teachers in the classroom, students are also able to learn about knowledge of plants in nature. According 9 headmaster Lei Yingfei, through labor (劳动) education, developed a sense of teamwork, as well as improved their performance of cultural courses. “ 10 (child) who have not kissed the land will not have a complete childhood. The farm labor will build excellent characters that last a lifetime,” he said. 学科网（北京）股份有限公司 $