Unit 8 A green world 单元话题语法填空训练（含解析）2023-2024学年八年级英语下册单元重难点易错题精练（牛津译林版）

Unit 8 A green world
单元话题语法填空练习
（23-24八年级上·江苏宿迁·期末）根据短文内容，用括号内所给词的正确时态或形式填空使短文完整，每空词数不随
Dear Editor,
I am writing to ask more people 1 (protect) the wildlife.
Our Earth is facing different kinds of problems now. As we all know, the number of people is becoming bigger and bigger. As a result, the pollution is getting 2 (bad) than before. And many wild animals are dying out.What can we do
Firstly, we had better 3 (not litter) everywhere. The wild animals may 4 (eat) it by mistake. We should put it into the rubbish bin nearby.
Secondly, don’t buy anything made of wild animals. My mother never wears clothes 5 (make) of animal fur. Last week, we saw someone 6 (sell) wild birds while we 7 (shop) at the market. Then, we called the police at once.
8 (third), we should advise the TVs and newspapers to tell more people that protecting the wildlife is protecting 9 (we).
Take action at once, and the Earth 10 (be) a wonderful place for both humans and animals in the near future.
（22-23八年级上·江苏南通·期末）请认真阅读下面的短文，根据上下文提示，用括号内所给单词的适当形式完成短文。
Dear Editor,
I am writing to ask more people to protect the wildlife.
Our Earth 11 (face) serious problems now. As we all know, the number of people is becoming bigger and bigger. As a result, the pollution is much 12 (serious) than before. And many wild animals are dying out. What can we do
Firstly, we had better 13 (not drop) litter everywhere. The wild animals may 14 (eat) it by mistake. We should put it into the rubbish bin nearby.
Secondly, 15 (not buy) anything made of wild animals. My mother never 16 (wear) clothes made of animal fur. Last week, we saw someone selling wild birds while we 17 (shop) at the market. Then, we 18 (call) the police at once.
Thirdly, we should advise the TVs and newspapers to tell more people that protecting the wildlife is protecting 19 (we).
We believe the Earth 20 (be) a wonderful place for both humans and animals in the near future.
（22-23八年级上·江苏苏州·期中）请认真阅读下面短文，在答题卡标有题号的横线上，填入1个适当的单词或括号内单词的正确形式。
I enjoyed my summer holiday this year, I went to Hainan with my parents. We had fun 21 (play) on the beach and camping in the forest. I bought some special gifts 22 my friends. It was the 23 (good) memory in my heart.
In the trip, I also found something 24 (happy). When I was playing on the beach, I found rubbish everywhere on the sand. However, nobody would pick it 25 .When I had meals in the restaurant or hotels, people beside our table talked and laughed 26 (loud).
In my opinion, when people are on vacation, everyone should be 27 polite visitor. First, we should talk with 28 (other) quietly. 29 , when we find the rubbish on the ground, we should throw rubbish in the dustbin to protect our environment(环境). 30 all of us can be polite visitors, we will have a wonderful trip.
（22-23八年级下·江苏宿迁·期末）用括号内所给词的正确形式填空，使短文完整。
We all need a healthy environment, but we produce waste every day and it is 31 (harm) to our environment. In fact, we can do something to help. Even the 32 (simple) everyday activities can make a real 33 (different) to the environment. Here are some ideas for you 34 (live) a green life. Remember these three words: reduce, reuse and recycle.
Reduce means “use less”. Don’t waste things. This saves money and 35 (reduce) pollution. Before we buy something new, think if it is really necessary. When we do buy things, please 36 (choose) local products (产品) if possible, and try not to buy too many things from foreign 37 (country).
Reuse means “use again”. When we buy things, make sure that they last a long time. We should take care of 38 (they) so that they will last.
Recycle means “change things into something else”. Although it takes energy to change something into something else, it’s better than 39 (throw) things away or burning them. Find out what can be recycled in your neighborhood and take part in recycling programs. We should also buy products 40 (make) from recycled materials.
（21-22八年级上·江苏常州·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。
What will our world be like if there are no insects It might sound nice in the 41 (begin). There would be no bugs or flies in your room. But in fact, this could cause really serious 42 (problem).
The bad news is that the number of insects keeps 43 (drop) these years. Scientists say it’s 44 (main) because of the use of pesticides (农药). They destroy the places that insects live in.
What would happen if all insects died out It’s almost impossible to predict (预测), but the results would be terrible. We need insects to pollinate (授粉) crops. They also break down dead plants and animals and turn them 45 new useful things. We need them 46 (keep) the soil (土壤) healthy. 47 insects, many animals would have nothing to eat. They would go hungry and die.
The first thing we need to do is to let more people understand the 48 (important) of the natural world, both for what it does for us and for 49 (it). The best place to start is with our 50 (child). We should teach them environmental awareness (环保意识) at an early age.
（21-22八年级下·江苏宿迁·期末）根据短文，用括号中所给单词的正确时态或适当形式填空。
We all need a healthy environment, but we produce waster every day and it is 51 (harm) to our environment. In fact, we can do something to help. Even the 52 (simple) everyday activities can make a real 53 (different) to the environment. Here are some ideas for you 54 (live) a green life. Remember these three words; reduce, reuse and recycle.
Reduce means “use less”. Don’t waste things. This saves money and 55 (reduce) pollution. Before we buy something new, think if it is really necessary. When we do buy thing, please 56 (choose) local products (产品) if possible, and try not 57 (buy) too many things from foreign countries.
Reuse means “use again”. When we buy things, make sure that they last a long time. We should take care of them so that they will last.
Recycle means “change things into something else”. Although it takes energy to change something into something else, it’s’ better than 58 (throw) things away or burning them. Find out what can 59 (recycle) in your neighbourhood and take part in recycling programs. We should also buy products 60 (make) from recycled materials.
（21-22八年级下·江苏常州·期末）Glass is 100% recyclable and can be recycled again and again. Do you know how it’s recycled Let’s find it out together.
The glass recycling begins when you put your used glass bottles into the recycle bin. It’s very important that you do your part. After all, if you throw it in the rubbish bin instead 61 the cycle bin, it will end up in a landfill(垃圾填埋场). Though it might not be 62 (harm) to the soil, it’s a waste of resource.
When the glass is collected by the factory, it will 63 (clean) first.That means washing away the waste inside and 64 (take) away metals and paper or plastic labels(标签).
Now the glass is clean. It’s time 65 (separate) different kinds of glass for recycling. For example, coloured glass and clear glass are two different kinds,and non-food containers(容器) cannot mix 66 food containers.
In the next step, the glass will be sent to a machine where it’s broken down 67 small pieces. The pieces are called cullet. After the cullet travels down a conveyor belt(传送带), some special 68 (tool) are used to take away remaining(遗留的) metals and small paper labels. The cullet becomes much 69 (clean).
Finished cullet is then sold to other factories 70 a material. The factories melt down the cullet and then form it into new things. Your glass bottle now may become a part of a desk, some beach sand or paint for street lines.
Altogether, the whole recycling and re-production process(过程) can take about 30 days.
（23-24八年级上·山东枣庄·期末）阅读下面的材料并填空。有的答案要填入适当的内容，有的答案要用括号内单词的正确形式，但每个答案不多于三个单词。
It was a sunny day. A young boy was hanging 71 on the beach. He looked up and he saw a beautiful blue sky. He looked down and he found a starfish. He picked it up and threw it into the sea.
An old man came up to the boy. He asked, “What are you doing ” The young boy 72 (reply), “I am saving the starfish. The sun is coming up and the temperature will be 73 (high) and higher. It will dry out and die.” The old man laughed. “There are 74 (hundred）of these starfish! You can’t 75 (make) any difference to their situation (状况).”
It was true. There 76 (be) lots of starfish. The young boy became sad, 77 soon he laughed. Then, he picked up another starfish and threw it into the sea. He turned to the old man and said, “Well, I made 78 difference to that one!” He even 79 (invite) the old man to join him.
Young people are the leaders of tomorrow. They need a good 80 (prepare). They are also making great changes to the world around them. There are many ways that they can do to make the world a better place.
（23-24八年级上·贵州六盘水·期末）阅读下面短文，在各题空白处填入1个适当的单词或括号内单词的正确形式。
Madison Checketts is a 12-year-old girl. She loves going to beaches with her family. 81 , every time she went there, she saw many plastic water bottles on the beaches. Seeing plastic polluted 82 (she) favorite beaches year after year, Madison decided it was time to do something about it.
After 83 (learn) a lot about plastic pollution, Madison decided to create the Eco-Hero—an edible (可以吃的) water bottle. People can 84 (easy) drink the water and can eat the bottle after finishing the water. It 85 (cost) only about $ 1.20 to make.
Creating the Eco-Hero was not an easy job. Madison went through many tests. “I just kept trying new 86 (thing), and if it didn’t work, I would do some more research (研究) and try again,” she says.
Thinking 87 the future of the Eco-Hero, Madison says she wants to do more tests to improve the water bottle and make it stronger and 88 (big). She hopes this kind of bottles can be used during races—as runners stop for water, they’d be able to use the Eco-Hero, drink the water and eat the bottle.
The Eco-Hero encourages (鼓励) people to do something 89 (make) the world a better place. “Everyone can make a difference in the world, even if it’s just in 90 small way,” says Madison.
参考答案：
1．to protect 2．worse 3．not litter 4．eat 5．made 6．selling 7．were shopping 8．Thirdly 9．ourselves 10．will be
【导语】本文主要介绍了保护野生动物的方法。
1．句意：我写信是要求更多的人保护野生动物。ask sb to do“要求某人做某事”，固定句型，故此处应用动词不定式作宾语补足语。故填to protect。
2．句意：结果，污染比以前严重得多。根据空后than的提示可知，空处的形容词应用比较级形式。故填worse。
3．句意：首先，我们最好不要到处乱扔垃圾。had better not do“最好不干某事”，固定用法。故填not litter。
4．句意：野生动物可能误食了它。may是情态动词，后加动词原形。故填eat。
5．句意：我妈妈从不穿动物毛皮制成的衣服。根据语境可知，此处表达动物毛皮制成的衣服，应为过去分词作定语，make的过去分词为made。故填made。
6．句意：上周，我们在市场购物时，看到有人在卖野鸟。此处表达看见有人正在卖野鸟，see sb doing“看见某人正在做某事”。故填selling。
7．句意：上周，我们在市场购物时，看到有人在卖野鸟。根据语境和主句时态可知，从句应用过去进行时was/were doing，主语是复数，be动词用were。故填were shopping。
8．句意：第三，我们应该建议电视和报纸告诉更多的人，保护野生动物就是保护我们自己。根据“Firstly...Secondly, ”可知此处应为副词thirdly，句首开头字母大写。故填Thirdly。
9．句意：第三，我们应该建议电视和报纸告诉更多的人，保护野生动物就是保护我们自己。根据“protecting the wildlife is protecting”可知，保护野生动物就是保护我们自己，空处应用反身代词ourselves”我们自己”。故填ourselves。
10．句意：立刻行动起来，在不久的将来，地球将是人类和动物的美好家园。根据时间状语“in the near future”可知，句子应用一般将来时will do。故填will be。
11．is facing 12．more serious 13．not drop 14．eat 15．don’t buy 16．wears 17．were shopping 18．called 19．ourselves 20．will be
【导语】本文主要介绍了保护野生动物的方法。
11．句意：我们的地球现在面临着严重的问题。根据语境和时间状语可知，句子应用现在进行时be doing，主语是第三人称单数，be动词用is。故填is facing。
12．句意：结果，污染比以前严重得多。根据空后than的提示可知，空处的形容词应用比较级形式。故填more serious。
13．句意：首先，我们最好不要到处乱扔垃圾。had better not do“最好不干某事”，固定用法。故填not drop。
14．句意：野生动物可能误食了它。may是情态动词，后加动词原形。故填eat。
15．句意：第二，不要买任何由野生动物制成的东西。句子是祈使句的否定形式，以don’t开头，后加动词原形。故填don’t buy。
16．句意：我妈妈从不穿动物毛皮制成的衣服。根据语境可知，句子应是一般现在时，主语是第三人称单数形式，故动词应用第三人称单数形式。故填wears。
17．句意：上周，我们在市场购物时，看到有人在卖野鸟。根据语境和主句时态可知，从句应用过去进行时was/were doing，主语是复数，be动词用were。故填were shopping。
18．句意：然后，我们立即报警。根据上下文语境可知，句子应用一般过去时，故动词应用过去式。故填called。
19．句意：第三，我们应该建议电视和报纸告诉更多的人，保护野生动物就是保护我们自己。根据“protecting the wildlife is protecting”可知，保护野生动物就是保护我们自己，空处应用反身代词ourselves”我们自己”。故填ourselves。
20．句意：我们相信，在不久的将来，地球将是人类和动物的美好家园。根据时间状语“in the near future”可知，句子应用一般将来时will do。故填will be。
21．playing 22．for 23．best 24．unhappy 25．up 26．loudly 27．a 28．others 29．Second 30．If
【导语】本文主要讲述了作者今年的暑假不愉快的经历以及自己的感受。
21．句意：我们在海滩上玩得很开心，在森林里露营。根据“We had fun…(play) on the beach and camping in the forest.”可知，此处指我们在海滩上玩得很开心，在森林里露营。have fun doing sth.玩得开心。故填playing。
22．句意：我给朋友们买了一些特别的礼物。根据“I bought some special gifts…my friends.”为某人买某物英语表达为buy sth. for sb.。故填for。
23．句意：它是我心中最美好的记忆。根据“We had fun…”可知，这是我心中最好的记忆，此处the后加最高级，good的最高级为best。故填best。
24．句意：在旅途中，我也发现了一些不快乐的事情。根据“When I was playing on the beach, I found rubbish everywhere on the sand.”可知，此处指也发现了一些不愉快的事，与上文形成反差，happy开心的，反义词为unhappy。故填unhappy。
25．句意：然而，没有人捡起它。根据“However, nobody would pick it …”可知，此处指没有人把垃圾捡起来，pick up 捡起。故填up。
26．句意：当我在餐馆或酒店吃饭时，我们桌子旁边的人大声地说着笑着。根据“ people beside our table talked and laughed …(loud).”可知，句子缺副词修饰动词，loud大声的，其副词为loudly。故填loudly。
27．句意：在我看来，当人们度假时，每个人都应该做一个有礼貌的旅客。根据“everyone should be…polite visitor. ”可知，此处缺少不定冠词修饰polite visitor，polite为辅音音素开头的单词。故填a。
28．句意：首先，我们应该安静地与他人交谈。根据“we should talk with… (other) quietly.”可知，此空为宾语。故填others。
29．句意：其次，当我们发现地上有垃圾时，我们应该把垃圾扔进垃圾箱，以保护我们的环境。根据“First, we should talk with…(other) quietly.”及“… , when we find the rubbish on the ground”可知，此处表递进，句子开头首字母要大写。故填Second。
30．句意：如果我们所有人都可以成为有礼貌的游客，我们将有一个美好的旅行。根据“…all of us can be polite visitors, we will have a wonderful trip.”可知，此处表示如果，句子开头首字母要大写。故填If。
31．harmful 32．simplest 33．difference 34．to live 35．reduces 36．choose 37．countries 38．them 39．throwing 40．made
【导语】本文是一篇说明文，介绍了我们在日常生活中如何做才环保。
31．句意：我们都需要一个健康的环境，但我们每天都会产生废物，这对我们的环境有害。根据“we produce waste”可知，废弃物对环境有害，固定短语be harmful to“对……有害”，故填harmful。
32．句意：即使是最简单的日常活动也能对环境产生真正的影响。simple是形容词，作定语，空前有the可知应用最高级，故填simplest。
33．句意：即使是最简单的日常活动也能对环境产生真正的影响。make a difference to“对……产生影响”，固定搭配。故填difference。
34．句意：这里有一些让你过上绿色生活的建议。live“生活”是动词，此处应用动词不定式作定语，故填to live。
35．句意：这样既省钱又减少污染。and连接两个并列结构，前后动词时态人称一致，saves是三单形式，所以reduce也用三单形式，故填reduces。
36．句意：当我们购买东西时，如果可能的话，请选择当地产品，尽量不要购买太多国外的东西。分析句子可知，此处是表示建议的祈使句，动词应用原形，故填choose。
37．句意：当我们购买东西时，如果可能的话，请选择当地产品，尽量不要购买太多国外的东西。country“国家”是可数名词，用复数表示泛指，country的复数是countries。故填countries。
38．句意：我们应该照料它们，这样它们才会长久。介词of后接人称代词时用宾格，they对应的宾格是them。故填them。
39．句意：虽然把东西变成别的东西需要能量，但总比扔掉或烧掉要好。than是介词，后加动名词作宾语，故填throwing。
40．句意：我们还应该购买由回收材料制成的产品。该句中谓语动词是buy，该空应填非谓语形式，make与逻辑主语products之间是被动关系，用过去分词made表示被动含义。故填made。
41．beginning 42．problems 43．dropping 44．mainly 45．into 46．to keep 47．Without 48．importance 49．itself 50．children
【导语】本文介绍了这些年来昆虫的数量一直在下降以及强调昆虫的重要性。
41．句意：一开始可能听起来不错。in the beginning“一开始”，为固定短语，故填beginning。
42．句意：但事实上，这可能会导致非常严重的问题。problem“问题”，可数名词，此处应用名词复数表示泛指，故填problems。
43．句意：坏消息是这些年来昆虫的数量一直在下降。keep doing sth“一直做某事”，为固定短语。故填dropping。
44．句意：科学家说这主要是因为杀虫剂的使用。main“主要的”，是形容词，此处应用副词修饰这个句子，故填mainly。
45．句意：它们还分解死去的植物和动物，把它们变成新的有用的东西。根据“They also break down dead plants and animals and turn them...new useful things. ”可知此处考查固定短语turn...into...“把……变成……”。故填into。
46．句意：我们需要它们来保持土壤健康。keep是动词，此处应用动词不定式作目的状语，表示“我们需要昆虫是为了保持土壤健康”。故填to keep。
47．句意：没有昆虫，许多动物就没有东西吃了。根据“insects, many animals would have nothing to eat. They would go hungry and die.”可知许多动物就没有东西吃是因为没有昆虫，without“没有”，介词，符合语境，故填Without。
48．句意：我们需要做的第一件事是让更多的人了解自然世界的重要性，既了解它为我们做了什么，也了解它本身。important是形容词，此处是the+名词+of的结构，名词形式为importance“重要性”。故填importance。
49．句意：我们需要做的第一件事是让更多的人了解自然世界的重要性，既了解它为我们做了什么，也了解它本身。根据“The first thing we need to do is to let more people understand the...of the natural world, both for what it does for us and for...”可知此处是指自然世界本身，应用it的反身代词itself，故填itself。
50．句意：最好从我们的孩子开始。child“孩子”，可数名词，此处应用其复数children。故填children。
51．harmful 52．simplest 53．difference 54．to live 55．reduces 56．choose 57．to buy 58．throwing 59．be recycled 60．made
【导语】本文介绍了我们在日常生活中如何做才环保。
51．句意：我们都需要一个健康的环境，但我们每天产生废物，这对我们的环境是有害的。固定短语be harmful to“对……有害”，故填harmful。
52．句意：即使是最简单的日常活动也能对环境产生真正的影响。simple是形容词，空前有the可知应用最高级，故填simpest。
53．句意：即使是最简单的日常活动也能对环境产生真正的影响。real是形容词，修饰名词difference，故填difference。
54．句意：这里有一些关于绿色生活的建议。live“生活”，动词，此处应用动词不定式作目的状语，故填to live。
55．句意：这样既省钱又能减少污染。and连接两个并列结构，前后动词时态人称一致，saves是三单形式， 所以reduce也用三单形式，故填reduces。
56．句意：当我们买东西的时候，如果可能的话，请选择当地的产品，尽量不要买太多外国的东西。根据“please”可知此处是祈使句，动词应用原形，故填choose。
57．句意：当我们买东西的时候，如果可能的话，请选择当地的产品，尽量不要买太多外国的东西。固定短语try not to do sth“尽力不要做某事”，故填to buy。
58．句意：虽然把一件东西变成另一件东西需要能量，但这比扔掉或烧掉东西要好。than是介词，后加动名词作宾语，故填throwing。
59．句意：在你的社区里找出可以回收的东西，并参加回收项目。recycle是动词，分析语境可知，主语和动词之间是被动关系（被回收的东西），空前有情态动词，所以此处是情态动词的被动语态：can be done，故填be recycled。
60．句意：我们还应该购买回收材料制成的产品。这里用过去分词作后置定语修饰products，故填made。
61．of 62．harmful 63．be cleaned 64．taking 65．to separate 66．with 67．into 68．tools 69．cleaner 70．as
【导语】本文主要介绍了回收玻璃再重复使用的过程。
61．句意：毕竟，如果你把它扔进垃圾桶而不是循环垃圾箱，它最终会被扔进垃圾填埋场。instead of“代替”，固定搭配，故填of。
62．句意：虽然它可能对土壤无害，但却是一种资源浪费。be后接形容词作表语，be harmful to“对……有害”，故填harmful。
63．句意：当玻璃被工厂收集后，会先清洗干净。it指代前文的glass，与动词clean之间是被动关系，故此处用被动语态will be done的结构，故填be cleaned。
64．句意：这意味着洗掉里面的垃圾，带走金属、纸或塑料标签。此空与washing构成并列关系，故此空也应填动名词，故填taking。
65．句意：是时候把不同种类的玻璃分开回收利用了。It is time to do sth“是做某事的时候了”，动词不定式作定语，故填to separate。
66．句意：例如，彩色玻璃和透明玻璃是两种不同的玻璃，非食品容器不能与食品容器混合。mix with“与……混合”，固定搭配，故填with。
67．句意：下一步，玻璃将被送往一台机器，在那里它被分解成小块。be broken down into“被分解成”，固定搭配，故填into。
68．句意：一些特殊的工具被用来拿走剩余的金属和小的纸标签。tool“工具”，可数名词，some修饰可数名词的复数形式，故填tools。
69．句意：碎玻璃变得干净多了。become后接形容词作表语，much修饰比较级，故填cleaner。
70．句意：完成后的碎玻璃再作为原料卖给其他工厂。根据“Finished cullet is then sold to other factories … a material”可知，作为原料卖给其他工厂，as“作为”，故填as。
71．out 72．replied 73．higher 74．hundreds 75．make 76．were 77．but 78．a 79．invited 80．preparation
【导语】本文是一篇记叙文。讲述了一名小男孩在海边坚持拯救海星，以他微小的力量为海洋环保做出贡献的故事。
71．句意：一个小男孩在海滩上闲逛。根据“A young boy was hanging … on the beach”可推测，此处是指小男孩在海边闲逛，应用out与之构成短语“hang out闲逛”，符合语境。故填out。
72．句意：小男孩回答说：“我在救海星”。全文描述的时态为一般过去时，结合提示词可知，应用其对应的过去式。故填replied。
73．句意：太阳出来了，温度会越来越高。根据“the temperature will be … and higher.”和提示词可知，此处应用其比较级形式与之构成“higher and higher越来越高”，符合语境。故填higher。
74．句意：老人笑了：“有好几百只这样的海星！”。根据“There are … of these starfish”和提示词可知，此处应用其复数形式与之构成“hundreds of…几百……”，符合语境。故填hundreds。
75．句意：你改变不了它们的处境。根据“can’t …”和提示词可知，情态动词后应用动词原形，与之构成“make difference做出改变，产生影响”，符合语境。故填make。
76．句意：这儿有很多海星。全文描述的时态为一般过去时，结合提示词和后文“…lots of starfish”可知，应用其过去式对应的复数形式。故填were。
77．句意：小男孩变得很伤心，但很快他就笑了。根据“ The young boy became sad…soon he laughed.”前后动作的反差可推测，此处应用转折连词but，符合语境。故填but。
78．句意：他转身对老人说：“好吧，我对它产生了影响！”。根据“make … difference to that one”可知，此处应用不定冠词修饰，表示泛指，意为“对……产生影响”。故填a。
79．句意：他甚至邀请老人和他一起。全文描述的时态为一般过去时，结合提示词可知，应用其对应的过去式，表示“邀请”。故填invited。
80．句意：他们需要做好准备。根据“They need a good …”和提示词可知，此处应用其名词的单数形式，表示“做准备”，符合语境。故填preparation。
81．However 82．her 83．learning 84．easily 85．costs 86．things 87．about/of 88．bigger 89．to make 90．a
【导语】本文主要讲述了一个12岁的女孩麦迪逊因为看到海滩上的塑料污染而决定采取行动，创造了一个可食用的名叫“生态英雄”的水瓶。
81．句意：然而，每次她去那里，她都会看到海滩上有许多塑料水瓶。根据前句“She loves going to beaches with her family.”和后句“every time she went there, she saw many plastic water bottles on the beaches.”可知，这两句话存在转折关系，however“然而”，符合句意。故填However。
82．句意：看到塑料污染了她心爱的海滩，麦迪逊决定是时候做一些事情了。根据“beach”可知，前面的代词用形容词性物主代词修饰名词，she“她”，主格，其形容词性物主代词为“her”。故填her。
83．句意：在了解了很多关于塑料污染的信息后，麦迪逊决定创造一个可食用的水瓶，名为“生态英雄”。After为介词，后加动词的ing形式，learn“学习”，动词，其动词ing形式为直接加ing。故填learning。
84．句意：人们可以很容易地喝水，喝完水后可以吃掉瓶子。drink the water“喝水”，动词短语，应该用副词修饰动词短语，easy“容易的”，其副词形式为变y为i加ly。故填easily。
85．句意：制作它只花费大约1.20美元。该句子用一般现在时，it“它”，第三人称单数做主语，谓语动词用单数，cost“花费”，动词，其三单为直接加s。故填costs。
86．句意：我只是不断尝试新事物。new things“新事物”。thing“事物”，名词，其复数形式为“things”。故填things。
87．句意：考虑到“生态英雄”的未来。think about/of“想到”，固定短语。故填about/of。
88．句意：麦迪逊说她想进行更多的测试，以改进水瓶，使其更坚固、更大。根据“stronger”可知，空处的形容词应该也用比较级，big“大的”，形容词，其比较级为“bigger”。故填bigger。
89．句意：“生态英雄”鼓励人们做一些事情，让世界变得更美好。根据“The Eco-Hero encourages (鼓励) people to do something ”可知，“生态英雄”鼓励人们采取行动的目的是使世界变得更美好，“to make”做目的状语。故填to make。
90．句意：“每个人都可以为世界带来改变，即使只是以很小的方式，”麦迪逊说。in a small way“用一个小的方式”，固定短语。故填a。