人教版初中英语九上 Unit13 单元话题语法填空练习

Unit 13 We’re trying to save the earth.单元话题语法填空练习（河北石家庄·九年级石家庄市第四十中学校考期末）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。Simon Dale didn’t want to live in a city’s apartment building. So he made 1 his mind to build his own home in the countryside. He moved to Wales with his wife and two 2 (child). With the help of his father-in-law, a builder, he moved into a 3 (comfort) wooden eco-house after only four months. 4 (he) family loves this house which only cost ＄4,700. 5 eco-house is made of natural materials. Simon Dale and his father-in-law 6 (dig) into the side of a hill and then used the mud and stone to make the walls. The 7 (two) floor is made from wood from the nearby area. The design is open-plan. There is no central heating, 8 there’s a wood-burner and solar panels (太阳能电板) on the top that can provide power for lighting, music and computing. Drinking water is from a nearby spring. The fridge stays cool, thanks 9 the air from under the ground. Simon Dale says, “We try to live in peace with the natural world.” He has 10 (certain) done his best to achieve that.（湖南长沙·九年级校联考期末）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。Life today is much 11 （easy）than it was hundreds of years ago, but it has brought new problems. One of 12 biggest problems is pollution. Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious 13 there were not so many people. However, as there are more people, the land will be used up and the river is dirtier than before. The problem was 14 serious that more than 700 million people around the world have trouble 15 （get）clean, safe water.Treating wastewater is a good way to provide fresh water 16 us. 75% of our planet is covered with water 17 comes from rivers, lakes, ice and snow. Since the 2010s, more than 19,000 factories 18 （build） around the world to make water safe to drink.Many countries are making rules 19 （fight）pollution. They stop people 20 putting dirty things into the water. The earth is our home. We must keep the land, water and air clean.（2福建龙岩·九年级统考期中）阅读下面短文，根据语境和所给单词的提示，在每个空格内填入一个适当的单词。Have you ever heard of the term “white pollution”? It 21 (be) a kind of serious environmental problem. The white color usually 22 (refer) to something clear and clean. However, white pollution is very 23 (harm). Because of single-use plastic tableware (餐具) and thin plastic bags, white pollution is becoming more and more serious. They’re easy to use and have already become a part of 24 (we) daily life. When people ask for take-out food, it usually comes with single-use plastic boxes. When people go shopping, they can often get plastic bags. People use too many plastic products because 25 their convenience. Now, white pollution has become 26 big problem. White pollution affects the environment 27 (main) in two ways. On the one hand, plastic waste can be seen everywhere in the natural environment. It makes cities, towns, hills, lakes… dirty. On the other hand, plastic waste can stay for 28 (century), resulting in soil pollution and water pollution. It can even cause many illnesses. What’s worse, animals might die after 29 (eat) plastic rubbish by mistake on the land or in the water. And it’s hard to solve the problem. Now everyone should help reduce white pollution 30 recycle plastic waste.（浙江湖州·校考三模）阅读下面的短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。Hua Weiguang took up taking photos after he retired. He used to be 31 teacher. Ten years ago, Hua found some people planting trees 32 his hometown, Horqin in Inner Mongolia. And then he started to take photos of them.In Hua’s photos, many things can 33 (find), from the sandstorms to young trees, as well as the people 34 fight against desertification (沙漠化).It was difficult to plant trees here. The workers had to cover 35 (them) or their mouths would be full of sand. They wore 36 (hat), scarves and goggles (护目镜) all the time. In summer, it was so hot that the workers had to lie down on the ground next to their cars to cool off. They 37 had to eat their lunch with the blowing sands. What about sunstroke (中暑)? Well, they took some medicine, 38 (drink) a little water and then continued working.Now with the improvement of the environment, animals are living there 39 (healthy). Without Hua’s photos, no one would believe that this change is possible.So far, China’s forest 40 (increase) by over 70,000,000 hectares (公顷). One tree after another, these people built a green Great Wall.（贵州贵阳·统考二模）阅读下面短文，在空白处填入1个适当的词或括号内单词的正确形式。Have you seen pieces of litter around where you live? Dropping litter doesn’t look nice; it can harm the environment and it is actually against 41 law. Litter means all sorts of things 42 have been dropped in a public space, including bottles, cans, cigarette ends, crisp packets and sweet wrappers. Litter collects on streets and paths, 43 rivers, parks, trees and buses. It can take 44 （hundred）of years to decompose（slowly break down and disappear）and can damage the soil.Wildlife suffers because of litter. Animals can get injured by sharp cans or glass, or they might even accidentally eat bits of plastic. Litter is blown by the wind and 45 （wash）into rivers and drains. Eventually 46 （this）things end up in the sea, where they can be a danger to sea creatures.If you’re doing a clean-up operation, one very 47 （use）thing is a litter picker. It has a handle at one end and grabber at the other. Using a litter picker 48 （allow）you to collect rubbish easily and safely. You should always wear protective 49 （glove）when out collecting rubbish. 50 （wear）a bright-colour vest is also a good idea, but don’t go picking up litter near a busy road without an adult with you.（吉林长春·统考一模）Imagine having everything you need—hospitals, stores, parks—just a few steps from home. This is the idea behind the 15-minute city. Here, people can get 51 the services they need in no more than 15 minutes from home. This social model is being developed in cities around the world, from Paris 52 Moscow. It could make people healthier and build 53 （strong） relationships with neighbors. Carlos Moreno is a strong supporter of the 15-minute city. He 54 （encourage）by the need to fight against climate（气候）change several years ago. In a 15-minute city, car travel is not the best 55 （choose）. People should build more foot roads and bike roads. Walking 56 biking across the city is of great use in cutting down CO₂ emissions（排放）. Anne Hidalgo plans 57 （develop）15-minute communities in France. That means 58 number of parking space will be reduced to 60000 by 2024 and more bike roads will be created on every street of the city. This kind of design（设计）does more than good to the planet. Joe Zehnder is the planner of the city Moscow. He is developing 59 （he）15-minute neighborhoods. “Having stores close to homes 60 （make） people able to eat healthier food and live a better life,” Zehnder says.（山东聊城·统考三模）阅读下面短文，在空白处按要求填入适当的单词或括号内单词的正确形式。每空1个单词。As we all know, pollution from traditional cars is a danger to people’s health. It makes people ill, and may even kill 61 (they). In order to reduce pollution, more and more people are becoming interested in new-energy cars. It is 62 (report) that by the end of 2020, China had 4.92 million new-energy vehicles and 4 million of them were electric cars. Compared 63 (介词) the traditional cars that use oil, new-energy cars cause much 64   (little) or nearly no pollution. However, new-energy cars can also bring some 65 (problem). It will soon be time to recycle the first batch (一批) of 66 (battery) of new-energy cars. It is expected that about 800, 000 tons of old electric car batteries need to be recycled by 2025. So far, no proper way has been 67 (find) to recycle them and make them useful in an environmentally friendly way. 68 (冠词) small percent are sent to factories and are made into smart-phone batteries. They increase the risk of accidents. 69 (连词) extracting precious metals (提取贵金属) from them may pollute the environment. That’s why 70 (set) up a system for recycling old electric car batteries is important. The government should encourage people to recycle in an environmentally friendly way.（广东深圳·九年级校联考期中）阅读下面短文，在空格处填入一个适当的词或使用括号中所给词语的正确形式填空。（共10小题，每小题1分）Ms. Guli is from Australia. In 2012, she decided to focus on 71 (help) the world face its water problems. Ms. Guli said that when she saw a river that had dropped by 20 feet within six years, she realized she needed to do something. She started a group called “Thirst” 72 had taught over 500,000 people in China different ways to save water. Ms. Guli also began running. 73 (run) was not easy for her. When she was younger, her back was badly hurt. Doctors thought she might never run again. She started swimming, then biking, and 74 (final) running again. In November, Ms. Guli ran the New York Marathon, the first of the 100 marathons planned for 75 (she) Running Dry project. But after 60 marathons, doctors discovered that Ms. Guli had broken 76 bone in her leg. She decided to walk the marathons rather than run them. That meant spending about 9 to 12 hours 77 (walk) instead of five hours running. But after 62 marathons, doctors told her that she would damage her leg 78 she didn’t stop. Ms. Guli finally agreed to stop running. One thing is certain. Even 79 her hurt leg, Ms. Guli will continue working to let us know how 80 (importance) it is to change the ways we use and save water.（河北石家庄·校考三模）My father told me that there used to be a forest near our town. But the farmer who owned 81 forest cut down trees every year. One year, there were no trees left. When we were in the 82 (seven) grade, our teacher, Ms. Zhang, took us out. We 83 (have) a picnic in the field where the forest used to be. While eating and drinking, we talked 84 how beautiful the forest was. “What can we do to make it 85 (good) than before?” asked one student. Our teacher kept silent for a few 86 (second). “Let’s plant some trees!” said the teacher. “It will be a good start!” We answered 87 (happy). So that was 88 we did. We 89 (work) hard and planted thousands of trees for the rest of the spring. All of 90 (we) felt happy. It was great to see how we changed the field.参考答案：1．up 2．children 3．comfortable 4．His 5．The 6．dug 7．second 8．but 9．to 10．certainly【导语】本文是一篇记叙文。主要讲了西蒙·戴尔建造生态屋的故事。1．句意：因此，他下定决心在乡下建造自己的家。此处是一个常用动词短语make up one’s mind to do sth“下决心做某事”。故填up。2．句意：他带着妻子和两个孩子搬到了威尔士。根据“two”可知，空处应填chlid的名词复数形式children“孩子”。故填children。3．句意：仅仅四个月后，在他当建筑师的岳父的帮助下，他搬进了舒服的新家。根据“wooden eco-house” 可知，空处应填comfort形容词形式comfortable“舒服的”，句中作定语修饰wooden eco-house。故填comfortable。4．句意：他的家人喜欢这座只花了4700美元的房子。根据“famliy”可知，空处应填he的形容词性物主代词his“他的”，句中作定语修饰family，位于句首的单词首字母需大写。故填His。5．句意：这个生态屋是由天然材料建造的。根据上文可知，上文提到过生态屋房，因此此处是特指上文提到的屋子，空处应填定冠词the，位于句首的单词首字母需大写。故填The。6．句意：西蒙·戴尔和他的岳父挖掘了山坡的一侧，然后用泥土和石头建造了墙壁。根据全文可知，本文用一般过去时，空处应填dig的过去式形式dug“挖”。故填dug。7．句意：第二层由附近地区的木材制成。根据“The…floor”和单词提示可知，此处指的是第二层，空处应填序数词second“第二”。故填second。8．句意：没有中央供暖系统，但是有一个燃木炉和太阳能电池板。根据“There is no central heating,…there’s a wood-burner and solar panels (太阳能电板)…”可知，空处前后句表示转折关系，空处应填表示转折的连词but“但是”。故填but。9．句意：多亏了地下的空气，冰箱才能保持凉爽。此处是一个常用短语thanks to“多亏了”。故填to。10．句意：他当然尽全力完成。根据“He has…done his best to achieve that.”可知，has done为谓语动词，应用副词修饰，空处应填certain的副词形式certainly“当然的”。故填certainly。11．easier 12．the 13．because 14．so 15．getting 16．for 17．that/which 18．have been built 19．to fight 20．from【导语】本文介绍了随着社会的发展，污染问题也随之产生，最后呼吁大家要爱护地球这个家园。11．句意：今天的生活比几百年前容易多了，但它也带来了新的问题。此处是与几百年前对比，要用形容词easy的比较级easier。故填easier。12．句意：最大的问题之一是污染。“one of +the +形容词最高级+名词复数”是英语中最高级的固定搭配。表示“……是……中最……之一”。故填the。13．句意：许多年前，这个问题没有那么严重，因为没有那么多人。空后句子是空前污染问题不严重的原因。故填because。14．句意：这个问题如此的严重，以至于在这个世界上超过7亿的人在的到干净安全的水这方面有困难。英语“so...that”意思为“如此……以至于”，引导结果状语从句，结合上下文可知，污染太严重，导致了很多人得不到干净安全的水。故填so。15．句意：这个问题如此的严重，以至于在这个世界上超过7亿的人在的到干净安全的水这方面有困难。have trouble doing sth.“做某事有困难”。故填getting。16．句意：处理废水是为我们提供干净水的好方法。provide sth for sb“为某人提供某物”，固定搭配。故填for。17．句意：地球上75%的面积被来自河流、湖泊、冰雪的水所覆盖。结合语境可知，此处为定语从句，water为先行词，that/which为关系代词，在定语从句中作主语。故填that/which。18．句意：自2010年代以来，世界各地已经建造了19000多家工厂，以确保水的安全饮用。根据语境可知，“自……以来，到现在为止”，句子需要使用现在完成时；工厂被建立，句子为被动语态；factories为复数。故填have been built。19．句意：许多国家正在制定规则对抗污染。制定规则的目的是fight pollution，表示目的，用to fight。故填to fight。20．句意：他们阻止人们把脏东西放入水中。stop sb from doing sth“阻止某人做某事”，固定搭配。故填from。21．is 22．refers 23．harmful 24．our 25．of 26．a 27．mainly 28．centuries 29．eating 30．and【导语】本文是一篇说明文，主要介绍了“白色污染”及其危害。21．句意：这是一种严重的环境问题。根据句意及语境可知，句子是陈述现在的一个事实，所以时态为一般现在时；主语It是第三人称单数，所以be动词应用单数形式is，故填is。22．句意：白色通常指的是清晰干净的东西。根据“usually”及语境可知，句子陈述的是一个事实，所以时态为一般现在时；主语The white color是第三人称单数，所以谓语动词应用三单形式refers，故填refers。23．句意：然而，白色污染是非常有害的。分析句子结构可知，空处在句中作表语；所以应用形容词，harm的形容词是harmful，故填harmful。24．句意：它们很容易使用，已经成为我们日常生活的一部分。根据空后的名词“life”可知，空处应用we的形容词性物主代词our，来修饰名词，故填our。25．句意：人们使用太多的塑料制品是因为它们的方便。根据“because”及句意可知，表示“因为，由于”，因为已有“because”，所以空处应填of，构成短语“because of因为，由于”，故填of。26．句意：现在，白色污染已经成为一个大问题。根据空后的名词“problem”可知，其为可数名词单数形式，所以前面应用冠词来修饰；根据句意及语境可知，无特指，且空后的big是以辅音音素开头的单词，所以应用不定冠词a，故填a。27．句意：白色污染对环境的影响主要有两个方面。分析句子结构可知，空处应用副词作状语，main的副词形式是mainly，故填mainly。28．句意：另一方面，塑料垃圾可能会持续几个世纪，导致土壤污染和水污染。根据提示词“century”可知，其为可数名词，且空前没有表示单数的冠词，所以应用复数形式centuries，故填centuries。29．句意：更糟糕的是，动物可能会在陆地或水中误食塑料垃圾后死亡。根据空前的介词“after”可知，空处应用动词的-ing形式，eat的-ing形式是eating，故填eating。30．句意：现在每个人都应该帮助减少白色污染和回收塑料垃圾。分析句子结构可知，“reduce white pollution”和“recycle plastic waste”为并列关系，均作动词“help”的宾语，所以应用and连接，故填and。31．a 32．in 33．be found 34．who/that 35．themselves 36．hats 37．also 38．drank 39．healthily 40．has increased【导语】本文主要介绍了华伟光为在沙漠中种树的人拍照，从照片中可以了解人们和沙漠化的斗争以及成果。31．句意：他曾经是一名教师。此处泛指“一名老师”，teacher以辅音音素开头，用不定冠词a。故填a。32．句意：十年前，华在他的家乡内蒙古科尔沁发现一些人在种树。根据“his hometown”可知是在他的家乡，用介词in。故填in。33．句意：在华的照片中，可以找到许多东西。主语things和find“发现”之间是被动关系，此处用含情态动词的被动语态can be done。故填be found。34．句意：在华的照片中，可以找到许多东西，从沙尘暴到年轻的树木，以及与沙漠化作斗争的人们。句子是定语从句，先行词是people，关系词在从句中作主语，用who/that引导定语从句。故填who/that。35．句意：工人们必须把自己盖住，否则他们的嘴里就会充满沙子。根据“The workers had to cover...”可知工人要盖住他们自己，用反身代词themselves。故填themselves。36．句意：他们一直戴着帽子、围巾和护目镜。根据“scarves and goggles”可知此处用名词复数hats“帽子”。故填hats。37．句意：他们还不得不在风沙中吃午饭。根据“The workers had to...”可知他们不仅要盖住自己，还不得不在风沙中吃午饭，also“也”。故填also。38．句意：他们吃了一些药，喝了一点水，然后继续工作。根据“took some medicine”可知句子用一般过去时，动词用过去式drank“喝”。故填drank。39．句意：现在随着环境的改善，动物们健康地生活在那里。修饰动词living用副词healthily“健康地”。故填healthily。40．句意：到目前为止，中国的森林面积增加了2万多公顷。increase“增加”，根据“So far”可知句子用现在完成时，主语是China’s forest，助动词用has。故填has increased。41．the 42．that 43．in 44．hundreds 45．washed 46．these 47．useful 48．allows 49．gloves 50．Wearing【导语】本文主要讲述了环境污染的危害以及介绍了如果你正在进行清理作业，一个非常有用的东西就是垃圾拾取器。41．句意：它会损害环境，实际上是违法的。against the law“违法法律”，故填the。42．句意：垃圾是指被扔在公共场所的各种各样的东西，包括瓶子、罐头、烟头、薯片包和糖纸。此处是定语从句，先行词为物，关系词作主语，且先行词被all修饰，应用that。故填that。43．句意：垃圾堆积在街道、小路、河流、公园、树上和公共汽车上。此处应用地点方位介词in“在……里面”和后面名词表示范围，故填in。44．句意：它可能需要数百年才能分解(慢慢分解和消失)，并可能破坏土壤。hundreds of“数以百计的”，是固定短语，故填hundreds。45．句意：垃圾被风吹进河流和下水道。此处动词形式和and前的blown一致，应用过去分词，故填washed。46．句意：这些东西最终会进入海洋，对海洋生物构成威胁。空后是复数名词，应用these修饰，故填these。47．句意：如果你在做清理工作，一个非常有用的工具就是捡垃圾。空后是名词，应用形容词useful“有用的”作定语，故填useful。48．句意：使用垃圾拾取器可以让你轻松安全地收集垃圾。此句动名词作主语，谓语动词用单数，故填allows。49．句意：外出收集垃圾时，你应该戴上防护手套。glove“手套”，常用复数形式，故填gloves。50．句意：穿一件颜色鲜艳的背心也是一个好主意，但不要在没有成年人陪同的情况下在繁忙的道路附近捡垃圾。此处是作主语，结合谓语动词is可知，应用动名词形式，故填Wearing。51．all 52．to 53．stronger 54．was encouraged 55．choice 56．or 57．to develop 58．the 59．his 60．makes【导语】本文主要介绍了15分钟车程城市的社会模型。51．句意：在这里，人们可以在离家不超过15分钟的时间内获得所需的所有服务。根据上文“Imagine having everything you need—hospitals, stores, parks—just a few steps from home. This is the idea behind the 15-minute city.”可知，人们可以在离家不超过15分钟的时间内获得所需的所有服务。all“所有”，故填all。52．句意：从巴黎到莫斯科，这种社会模式正在世界各地的城市发展。from…to…“从……到……”。故填to。53．句意：它可以让人们更健康，并与邻居建立更牢固的关系。根据“make people healthier”及所给词可知，空处用形容词比较级，即建立更牢固的关系。故填stronger。54．句意：几年前，他受到几年前应对气候变化的需要的鼓舞。根据“He...the need to fight against climate change several years ago.”可知，他被几年前应对气候变化的需要所鼓励。句子要用一般过去时的被动语态was/were done；主语是第三人称单数。故填was encouraged。55．句意：在一个15分钟车程的城市里，开车旅行不是最好的选择。根据“car travel is not the best...”可知，best形容词，后跟名词，空处填可数名词单数。故填choice。56．句意：在城市里散步或骑自行车对减少二氧化碳排放有很大用处。根据“Walking...biking across the city is of great use”可知，在城市里散步或骑自行车，表选择，应用or连接。故填or。57．句意：Anne Hidalgo计划在法国发展15分钟的社区。plan to do sth.“计划做某事”。故填to develop。58．句意：这意味着到2024年，停车位的数量将减少到60000个，城市的每条街道都将修建更多的自行车道。根据“...number of parking space will be reduced to 60000 by 2024”可知，停车位的数量将减少到60000个。the number of “……的数量”，故填the。59．句意：他正在开发他的15分钟社区。根据“15-minute neighborhoods”及所给词可知，空处应用形容词性物主代词his。故填his。60．句意：商店离家很近可以让人们吃到更健康的食物，过上更好的生活。根据“Having stores close to homes...people able to eat healthier food and live a better life”可知，动名词作主语，谓语动词用三单，故填makes。61．them 62．reported 63．with 64．less 65．problems 66．batteries 67．found 68．A 69．And 70．setting【导语】本文主要介绍了新能源汽车电池可能造成的环境问题，以及建立一个回收旧电动汽车电池系统的重要性。61．句意：它使人生病，甚至可能致人死亡。空格部分作kill的宾语，所以用they的宾格them。故填them。62．句意：据报道，到2020年底，中国拥有492万辆新能源汽车，其中400万辆是电动汽车。It is reported that“据报道”，为固定句型。故填reported。63．句意：与使用石油的传统汽车相比，新能源汽车产生很少或几乎没有污染。此处是传统汽车和新能源车作比较，compare with“与……相比”。故填with。64．句意：与使用石油的传统汽车相比，新能源汽车产生很少或几乎没有污染。much修饰比较级，little的比较级是less。故填less。65．句意：然而，新能源汽车也会带来一些问题。some修饰可数名词复数，problem的复数是problems。故填problems。66．句意：回收第一批新能源汽车电池的时间很快就到了。“the first batch (一批) of ”后跟可数名词复数，battery的复数是batteries。故填batteries。67．句意：到目前为止，还没有找到合适的方法来回收它们，使它们以一种环保的方式使用。has been后跟过去分词构成现在完成时的被动语态，find的过去分词是found。故填found。68．句意：一小部分被送往工厂，制成智能手机电池。percent在此处是单数形式，且空后small是辅音音素开头的单词，所以用不定冠词a修饰。故填A。69．句意：而且从中提取贵金属可能会污染环境。“increase the risk of accidents”（增加发生事故的风险）和“extracting precious metals (提取贵金属) from them may pollute the environment”（从它们中提取贵金属可能会污染环境）之间是并列关系，所以用and连接，句首单词首字母要大写。故填And。70．句意：这就是为什么建立一个回收旧电动汽车电池的系统是很重要的。空处作句子的主语，所以用set动名词形式。故填setting。71．helping 72．that/which 73．Running 74．finally 75．her 76．a 77．walking 78．if 79．with 80．important【导语】本文主要讲述了古丽女士为了让大家知道改变用水和节约用水的方式而做出了很多努力。71．句意：2012年，她决定专注于帮助世界应对水资源问题。on为介词，介词后面的动词用动名词形式作宾语，故填helping。72．句意：她创建了一个名为“干渴”的组织，教给了中国50多万人不同的节水方法。考查定语从句，先行词为事物，关系词在从句中作主语，所以用关系代词that或which。故填that/which。73．句意：跑步对她来说并不容易。此处作主语，应该用动名词形式。故填Running。74．句意：她开始游泳，然后骑自行车，最后又开始跑步。副词修饰动词。故填finally。75．句意：去年11月，古丽女士参加了纽约马拉松比赛，她干跑项目计划的100场马拉松比赛中的第一场。此处作定语修饰后面的名词project，应该用形容词性物主代词，故填her。76．句意：但在跑了60场马拉松后，医生发现古丽女士摔断了一块骨头。空后单词bone为可数名词单数，这里应该用不定冠词表示泛指，又因为bone是以辅音音素开头的单词。故填a。77．句意：这意味着要花9到12个小时步行，而不是跑步五个小时。spend+时间+doing sth.意为“花费时间做某事”。故填walking。78．句意：但在62次马拉松比赛后，医生告诉她，如果她不停下，她将伤害到她的腿。根据句意可知，“不停下来”是“伤害到她的腿”的条件。“if如果”符合语境。故填if。79．句意：即使腿受伤了，古丽女士也会继续努力让我们知道改变我们使用水的方式和节约用水是多么的重要。with意为“带有，具有”表示伴随。故填with。80．句意：即使腿受伤了，古丽女士也会继续努力让我们知道改变我们使用水的方式和节约用水是多么的重要。句型it is+adj.+to do sth.意为“做某事是……的”，所以要填形容词。故填important。81．the 82．seventh 83．had 84．about 85．better 86．seconds 87．happily 88．what 89．worked 90．us【导语】本文讲述了作者镇上的农民每年都砍伐树木，最终导致森林消失。七年级时，作者在老师的带领下在春天努力工作，种下了成千上万棵树，最终改变了这片土地。81．句意：但是拥有森林的农民每年都砍伐树木。根据“My father told me that there used to be a forest near our town”可知此处应是特指前文提到的a forest，故要用定冠词the，故填the。82．句意：当我们七年级时，我们的老师，张老师带我们出去了。根据“When we were in the…grade”可知此处应是表示第七个学年，the后要用序数词，seven“七”，序数词为seventh，故填seventh。83．句意：我们在曾经是森林的地方野餐。通读全文可知是一般现在时，故要用过去式，have“有”的过去式是had，故填had。84．句意：在吃和喝的时候，我们讨论了森林是多么美丽。根据“we talked…how beautiful the forest was”可知此处应是talk about“讨论”，故填about。85．句意：我们能做什么使它比以前更好。根据“than”可知，此处要用比较级。good“好”，其比较级为better“较好的”，故填better。86．句意：我们的老师沉默了几秒。根据“a few”可知空格处应填可数名词复数，second当名词时表示“秒”，复数为seconds，故填seconds。87．句意：我们高兴地回答。根据“We answered…”可知空格处应是副词修饰answered，happy“高兴的”，其副词为happily，故填happily。88．句意：这就是我们要做的事。根据“So that was…we did.”可知此处应是表语从句，从句缺少宾语，我们做的事，要用what，故填what。89．句意：我们努力工作，在春天剩余的时间里种了成千上万棵树。根据“We…hard and planted thousands of trees”可知and前后是并列成分，时态要保持一致，planted是过去式，故work“工作”，也要用过去式worked，故填worked。90．句意：我们所有人都感到高兴。we“我们”，人称代词主格，根据空前of可知，介词后要用人称代词宾格us，故填us。