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Unit 6 Living with nature语法填空12篇
（单元话题：人与自然和谐共处）
学校:___________姓名：___________班级：___________考号：___________
一、语法填空
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。
Mount Huangshan lies in Anhui Province and attracts millions of travellers every year. It is one of the 1 (great) natural wonders in China. People dream of climbing its strange peaks and watching the famous sea of clouds. 2 (surprising), the mountain looks different in each season and the weather is so changeable that many visitors come here again and again.
The mountain has a long history. In the Ming Dynasty, the famous traveller Xu Xiake visited Huangshan. Then he 3 (write), “There is no mountain worth (值得) seeing after visiting Huangshan.” However, the climb is not easy. Some travellers have to deal 4 physical difficulties such as tired legs and sore feet. Others even get lost in the thick fog. But its amazing beauty always encourages people to keep going.
Today, visitors can choose different 5 (way) to enjoy the mountain. The new cable cars (缆车) allow tourists 6 (enjoy) the beauty of Huangshan without walking too much. Some travellers worry that modern development takes away the real spirit of the mountain. 7 it saves time, it cannot offer the joy of real climbing. They say it makes people forget how to challenge 8 (they).
Whether we take the cable car or walk bit by bit, Huangshan leaves us with 9 unusual experience. It teaches us that the highest 10 (achieve) often comes after the hardest climb.
阅读短文，在空白处填入适当的单词或括号内单词的正确形式。
Our earth is our home. Many 11 (villager) live in the countryside. They grow wheat and other crops. 12 (according) to the survey, some areas are facing water 13 (short). It is hard for animals and plants 14 (survive) in the desert.
We have rich 15 (nature) resources, but we waste too much energy every day. We should be 16 (energy) in protecting the environment. We need to use clean 17 (resource) and stop pollution.
If everyone tries their best, the number of green land 18 (increase) in the future. We can live 19 (sweet) in a better world. Let’s work together 20 (protect) our beautiful home.
Many people believe that the environment is being destroyed (破坏), and they think this is a new problem. They believe we are hurting nature because there are too many people and we use too many 21 (thing). This is true for some problems like the earth getting 22 (hot) than it was in the past. But deforestation (毁林) has been happening for centuries.
One study shows how the land on earth 23 (change) for over the past 10,000 years. It shows that about of the earth’s land is good for living things. The rest is mostly ice, desert 24 other unsuitable (不合适的) places for life.
It also shows that 10,000 years ago, of the world’s livable land 25 (cover) in forest. Today, only about is left. We have lost one-third of the world’s forests, an area twice as big 26 the United States!
We lost only a small amount of forest in the first 5,000 years. At that time, there were very few people in the world. They needed a lot of land 27 (grow) enough food, but there was little need for forests.
The world lost half of 28 (it) forests in the last 100 years. This is 29 same amount (数量) of forest that was lost from 8000 BC to 1900.
Cutting down trees is not new, but it has worsened 30 (recent). While we need land for farming, new technology may help us grow more food on less land. This could help to save forests for everyone. However, we need to take action now.
I can still remember my primary school homework on animals. I 31 (plan) to write about the whale at that time. I was 32 (interest) in them from a young age.
I’m not quite sure why I love whales, it might be something about 33 (they) shape. They have a smooth shape, and their tails look like a heart. They are graceful, like a tree dancing in the wind. The scene was 34 beautiful that it took my breath away.
So, of course, one of my best 35 (memory) was when I got to see a type of whale called the Southern Right Whale. After 36 (watch) the whales swim, I couldn’t stop talking about them. I felt 37 (happy) than ever. How beautiful they were!
I’m not the only one who loves whales. Some traditional stories mention whales a lot 38 people see whales as guardians (守护者) of the ocean.
Whales play an important role in the ocean. They 39 (be) in danger if we do nothing. Protecting whales means protecting the whole ocean. So please make sure 40 (do) your best to protect them！
Earlier this year, a report pointed out how fast the glaciers are melting, warning that it would affect 2 billion people. On 28th May, 2025,a large part of a glacier 41 (fall) into the Swiss village of Blatten,and destroyed nearly all the communities’ traditional houses.
Drone footage recorded how a piece of the glacier fell. 42 (lucky), scientists had already made a warning ahead 43 time, advising the villagers of Blatten to leave. So during the accident, apart from the destroyed houses, only one person went missing. After the fall of the glacier, the villagers were uncertain whether they would ever be able 44 (return).
The Blatten’s head said, “The unimaginable has happened,” but remained hopeful that the village would be rebuilt. “We have lost our village, 45 not our heart,” he said.
The glacier’s fall serves as a(n) 46 (importance) reminder of the influence of climate change. 47 recent report on Switzerland’s glaciers suggests they may totally disappear within a century 48 global temperatures continue to rise.
While the climate problems are worrying, experts 49 (work) hard to act and save lives by sending early warnings. Events like Blatten also highlight the need for supporting less developed countries in preparing for similar 50 (challenge).
There are two meanings of autumn equinox. First, it 51 (lie) at the midpoint of autumn, dividing autumn into two equal parts. Second, on the day of autumn equinox, 52 day and night are of equal length (12 hours) and the sun shines almost directly over the equator. After autumn equinox, China will have cooler days. So on this day, people have some special 53 (activity) to celebrate it.
54 (stand) eggs up on their ends
On autumn equinox day, thousands of people around the world try to make eggs stand on 55 (they) ends. So far, this Chinese custom 56 (become) the world’s game. Those people with experience say eggs about four or five days old are 57 (good) for the game than others.
Sending the autumn cattle
The so-called autumn cattle is a piece of red or yellow paper printed with solar terms and a picture of farming cattle. On autumn equinox day, people often take these pieces of paper from house to house 58 say or sing some words with good wishes, so they may get some pocket money.
Eating qiucai
Qiucai is a kind 59 wild autumn vegetable. It’s thin and about 20 cm long. Every autumn equinox day, some people in South China go to pick qiucai in the wild. Then they put qiucai into soup with fish. It is believed 60 it can clear the liver and intestines and make people healthy.
An amazing change is happening in the Kubuqi Desert. During the cold winters, farmers are busy 61 sand-control work. The main task is to repair straw checker-boards. The straw checker-boards 62 (build) by farmers to hold the moving sand. Zhang Yong, 63 experienced farmer says, “We use these straw checkerboards every year 64 (keep) the land safe from the sand.”
The Kubuqi Desert was known as a “dead land”. Since the 1950s, with the hard work of local people, things have changed 65 (great). The yellow sand has gradually turned into green fields. Herdsman Wangjil, who is 66 (old) than most of his neighbours, is very proud to see the changes. The key to success lies in mixing new tools with traditional 67 (method). Wangjil often thinks about the question, “How can we stay together with 68 (desert) ” His answer is “by understanding 69 (they) ways”. It shows that deserts don’t have to be people’s enemies. Instead, they can live with deserts in a friendly way. Although it is a longterm job, people are still full of hope, 70 they will continue sand-control work in the following years.
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。
A popular science book, Baguang Has Silver-Leaf Mangroves, has just been published. The writers wrote it 71 (encourage) people to protect the trees. They 72 (support) them in Dapeng, Shenzhen, since 2009.
The book shows how the seeds arrived, grew into 73 trees, and how the Baguang Nature School and its 74 (volunteer) care for the ancient trees. It is suitable for children and non-scientists because it 75 (write) in an easy-to-understand way.
Mangroves are important for 76 (coast) areas. They clean water, protect coasts, and support wildlife. The silver-leaf mangroves in Yanzao are the oldest and 77 (healthy) in the world. The oldest tree is 524 years old. These trees protect the village 78 storms.
The book is a useful guide for anyone who wants to know 79 they can do to learn about and help protect silver-leaf mangroves. It answers questions about mangroves and 80 (they) plants and animals and how to study them.
It’s a bright 81 (sun) day and you’re ready to go to school. However, your mother tells you, “Take your umbrella. It’s going to rain this afternoon.” How does she know this From the weather report! Thanks to Zhu Kezhen, 82 great Chinese meteorologist (气象学家), we have a better understanding of the weather 83 weather reports.
Zhu Kezhen is the founder of modern meteorology (气象学) in China. When he was young, Zhu was interested in changes of nature. He went to the United States 84 (study) meteorology in 1910. After he finished his studies there, he didn’t agree to teach in American universities and 85 (return) to China. Thanks to his efforts, the Chinese people later had their own weather 86 (report).
Zhu Kezhen 87 (make) it a habit to observe the weather every day. Rain or shine, Zhu got up early every day and walked outside with 88 (he) diary in hand. He observed the clouds and wind 89 (careful). He kept recording his observations for over 57 years. Even on the day before his passing, while in hospital, he wrote down, “Clear to cloudy, east wind 1-2.”
Though Zhu 90 (pass) away in 1974, people continue to honour him today and will do so forever.
China has many beautiful places. In Gansu Province, there is a place 91 (call) Minqin. People there have been fighting against the desert 92 many years. The desert grew larger in the past, and sandstorms often 93 (cover) their fields and houses. To protect 94 (they) homes, the local people decided to plant a special tree called the saxaul tree (梭梭树).
These trees can grow in dry places and their roots help hold the sand together. In 2010, villagers started digging holes in the desert and put small saxaul trees into the holes. Everyone worked hard, 95 even children helped carry water. So far, they have planted over 2 million trees.
The trees stop the sand moving. Also, they make the air 96 (clean) than before. Many animals, like birds and 97 (insect), are returning to the land. “We will continue to take care of these trees,” said 98 old farmer, “If we don’t protect the environment, our children will have no green land to live in the future.”
Thanks to their efforts, the desert is becoming smaller and smaller. People around China 99 (learn) from Minxin’s story now. Every tiny bit of strength is precious. It can make a big 100 (different) to the environment. Just like those small saxaul trees, when they get together, they can prevent wind and fix sand.
阅读下面短文，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。
The Sahara Desert is in the north of Africa. It is the 101 (large) hot desert in the world, covering about 8,600,000 square kilometres. Life there in the past 102 (be) much more difficult for humans than in other places 103 it was hard to grow plants and find water there.
The Sahara Desert has one of the most terrible living conditions on earth. It is very hot 104 dry all year round. The highest temperature there once reached 58℃.
There is much oil in the Sahara Desert. After the people there found it, they started to sell it 105 other countries. Then they had money to build 106 (house) and roads in the desert. But the living conditions in the Sahara Desert are still hard now. And people are 107 (real) worried about the conditions getting worse. So the government tried hard to plant trees in 108 past few years. They also had some programs to let people know the importance of 109 (save) water. Now, the Sahara Desert has become much more beautiful than before.
The Sahara Desert reminds 110 (we) that nature is just as important as humans. So we should try our best to protect it.
阅读下面短文，在空白处填入1个适当单词或括号内单词的正确形式。
Living with nature is the most important lesson for humans. For thousands of years, people 111 (live) with nature peacefully, but now many 112 (problem) have appeared. A lot of wild animals are in danger because their homes 113 (destroy) by humans. The air and water are badly polluted, 114 makes it hard for all living things to survive.
115 (protect) nature has become a world-famous task. We must take action right now. We should stop 116 (cut) down trees and hunting wild animals. We can use reusable things instead 117 plastic products.
The government has made strict laws 118 (keep) the balance of nature. As students, we can do small things in our daily life, like saving water and 119 (sort) rubbish.
If we try our best to live with nature in harmony, the world 120 (be) more and more beautiful.
参考答案
1．greatest 2．Surprisingly 3．wrote 4．with 5．ways 6．to enjoy 7．Although/Though 8．themselves 9．an 10．achievement
本文是一篇介绍黄山的说明文，讲述了黄山的自然景观、历史渊源、游览方式，以及现代发展带来的争议，最终点明 “最艰难的攀登后，往往能收获最高的成就” 这一道理。
1．它是中国最伟大的自然奇观之一。“one of the+形容词最高级+可数名词复数” 是固定结构，表示“最……之一”，故great变为最高级greatest。
2．令人惊讶的是，这座山在每个季节看起来都不同。此处需要副词修饰整个句子，surprising变为副词Surprisingly（句首首字母大写）。
3．然后他写道：“游览过黄山后，便没有哪座山值得一看了。”时间状语“In the Ming Dynasty”表明动作发生在过去，故write变为过去式wrote。
4．一些游客不得不应对身体上的困难。固定搭配deal with表示“处理、应对”，故填介词with。
5．如今，游客可以选择不同的方式欣赏这座山。different后接可数名词复数，故way变为复数ways。
6．新缆车让游客不必走太多路就能欣赏黄山的美景。固定搭配allow sb. to do sth.表示“允许某人做某事”，故填to enjoy。
7．虽然它节省时间，但无法提供真正攀登的乐趣。此处引导让步状语从句，表示“虽然、尽管”，故填Although/Though。
8．他们说这会让人们忘记如何挑战自我。challenge oneself表示“挑战自我”，主语是people，故they变为反身代词themselves。
9．无论我们坐缆车还是一步步走，黄山都留给我们一段不寻常的经历。experience是可数名词。意为“经历”，unusual以元音音素开头，故用不定冠词an，表示“一段经历”。
10．它教会我们，最高的成就往往在最艰难的攀登之后到来。the highest后接名词，achieve变为名词achievement，表示“成就”。
11．villagers 12．According 13．shortage 14． to survive 15．natural 16．energetic 17．resources 18． will increase 19．sweetly 20．to protect
本文指出地球面临资源浪费与水资源短缺问题，呼吁人们积极使用清洁能源、制止污染，共同努力让未来绿地更多、生活更美好。
11．许多村民住在农村。“many”后接可数名词复数，villager的复数形式为villagers。
12．根据调查，一些地区正面临水资源短缺。“according to”为固定搭配，意为“根据”，位于句首首字母大写。
13．根据调查，一些地区正面临水资源短缺。“water shortage”意为“水资源短缺”，short的名词形式为shortage。
14．动物和植物很难在沙漠中生存。“It is+adj.+for sb./sth.+to do sth.”为固定句型，空处应填不定式形式to survive，作真正的主语。
15．我们拥有丰富的自然资源。此处需用形容词修饰名词“resources”，nature的形容词形式为natural。
16．我们应该积极保护环境。此处需用形容词作表语，energy的形容词形式为energetic，意为“精力充沛的、积极的”。
17．我们需要使用清洁的资源并停止污染。“resource”为可数名词，此处表示泛指，应用复数形式resources。
18．如果每个人都尽力，未来绿地的数量将会增加。if引导条件状语从句，根据“in the future”可知，主句用一般将来时，其结构为will+动词原形，空处应填will increase。
19．我们可以在一个更美好的世界里甜蜜地生活。此处需用副词修饰动词“live”，sweet的副词形式为sweetly。
20．让我们共同努力保护我们美丽的家园。不定式作目的状语，表示“为了保护”，空处应填不定式形式to protect。
21．things 22．hotter 23．has changed 24．or 25．was covered 26．as 27．to grow 28．its 29．the 30．recently
本文主要讲述了地球的土地从过去发生了变化，毁林现象已经持续了数百年，森林覆盖面积一直在流失。砍伐树木已经不是新问题，但是近期的情况更加恶化。呼吁我们采取行动保护森林。
21．他们相信我们正在伤害自然因为有太多的人并且我们使用了太多的东西。空格前“too many”后面应用名词的复数形式，应填things。
22．这对于一些问题是正确的，比如全球变暖。空格后“than”是比较级的标志词，“hot”是以辅元辅重读闭音节结尾的形容词，应填hotter。
23．一项研究表明地球在过去的10000年是如何变化的。句中“for over the past 10,000 years”为for+持续的一段时间，现在完成时的标志，主语“the land”为单数形式，应填has changed。
24．剩下的是冰，沙漠或者其他不适合生存的地方。空格前后“ ice, desert”和“other unsuitable places”为并列关系，且此处表示否定，应填or。
25．它还表明10000年前，世界上57%适合生存的陆地被森林覆盖。主语“livable land”和谓语动词“cover”是被动关系，而且根据“10,000 years ago”，应用一般过去时的被动语态，应填was covered。
26．我们已经失去了三分之一的世界森林，面积是美国的两倍大。句子“twice as big”可知，此处为as…as和……一样……的结构，应填as。
27．他们需要许多的土地去种植足够的食物。空格前“needed a lot of land”和“enough food”可知，需要土地的目的是为了种足够的食物，动词不定式表目的，应填to grow。
28．在过去的100年，世界失去了它一半的森林。空格后为名词“forests”，此处应用形容词性物主代词，应填its。
29．这和我们从公元前8000年到1900年失去的森林面积数量一样。“the same”相同的，固定搭配，应填the。
30．砍伐森林不是新问题，但是最近的情况有所恶化。分析句子可知，此处用副词作时间状语，应填recently。
31．planned 32．interested 33．their 34．so 35．memories 36．watching 37．happier 38．because 39．will be 40．to do
本文讲述了作者回忆小学时关于鲸鱼的作业，表达了对鲸鱼的喜爱，强调了鲸鱼在海洋中的重要性，并呼吁大家保护鲸鱼与海洋。
31．我那时计划写关于鲸鱼的内容。根据时间状语“at that time”和前文“primary school homework”可知，句子时态为一般过去时，plan的过去式为planned。
32．我从小就对它们感兴趣。固定搭配be interested in表示 “对……感兴趣”，此处需要用interest的形容词形式interested作表语。
33．可能是因为它们的外形。此处修饰名词shape，需要用形容词性物主代词，they的形容词性物主代词为their。
34．这一幕如此美丽，让我惊叹不已。固定结构so+形容词+that...表示“如此……以至于……”，此处用so修饰形容词beautiful。
35．当然，我最美好的回忆之一是我去看一种叫南露脊鲸的鲸鱼的时候。固定结构one of+the+形容词最高级+可数名词复数表示 “最……之一”，memory的复数形式为memories。
36．在看完鲸鱼游泳后，我忍不住一直谈论它们。介词after后接动名词形式，watch的动名词形式为watching。
37．我感到比以往任何时候都更快乐。根据标志词than可知，此处需要用形容词的比较级，happy的比较级为happier。
38．一些传统故事经常提到鲸鱼，因为人们将鲸鱼视为海洋的守护者。此处表示因果关系，用because连接两个并列分句。
39．如果我们什么都不做，它们将会处于危险之中。if引导的条件状语从句遵循 “主将从现” 原则，从句用一般现在时，主句用一般将来时，故填will be。
40．所以请务必尽你最大的努力保护它们！固定搭配make sure to do sth.表示 “务必做某事”，此处需要用不定式形式to do。
41．fell 42．Luckily 43．of 44．to return 45．but 46．important 47．A 48．if 49．are working 50．challenges
本文讲述瑞士冰川崩塌事件，警示气候变化危害，呼吁应对气候挑战。
41．2025年5月28日，一大块冰川坠入瑞士布拉滕村，几乎摧毁了社区内所有传统房屋。On 28th May, 2025为过去具体日期，用一般过去时，fall过去式为fell。
42．幸运的是，科学家们早已提前发出警告，建议布拉滕村民撤离。修饰全句用副词，“scientists had already made a warning ahead…time”说明是“幸运地”，lucky“幸运的”副词为luckily，句首单词首字母要大写。
43．幸运的是，科学家们早已提前发出警告，建议布拉滕村民撤离。ahead of time为固定搭配，意为“提前”。
44．冰川崩塌后，村民们不确定自己是否还能重返家园。be able to do sth.为固定搭配，意为“能够做某事”。
45．布拉滕村村长表示：“难以想象的事情发生了。” 但他仍对村庄得以重建抱有希望。“我们失去了村庄，却没有失去信心。” 他说道。前后句表转折，用连词but，表示“但是”。
46．此次冰川崩塌是气候变化影响的重要警示。修饰名词reminder用形容词作定语，importance的形容词为important“重要的”。
47．一份关于瑞士冰川的近期报告指出，如果全球气温持续上升，冰川可能在一个世纪内完全消失。report为单数可数名词，此处表示泛指，且recent发音以辅音音素开头，故用不定冠词a，句首单词首字母要大写。
48．一份关于瑞士冰川的近期报告指出，如果全球气温持续上升，冰川可能在一个世纪内完全消失。此处表示“如果全球气温持续上升”，用if引导条件状语从句，if表示“如果”。
49．尽管气候问题令人担忧，专家们正努力采取行动，通过发布早期预警来挽救生命。此处表示现阶段正在进行的动作，用现在进行时，主语experts是复数，故be动词用are，work的现在分词是working。
50．类似布拉滕的事件也凸显出：有必要支持欠发达国家为应对同类挑战做好准备。此处表示“同类挑战”，应用可数名词复数表示泛指，challenge“挑战”复数为challenges。
51．lies 52．the 53．activities 54．Standing 55．their 56．has become 57．better 58．and 59．of 60．that
本文主要介绍了秋分的含义及秋分的习俗。
51．首先，它位于秋天的中点，将秋天分成两个相等的部分。此处描述客观事实，用一般现在时，主语it是第三人称单数，lie要用其三单形式lies。
52．其次，在秋分这一天，昼夜时长相等（各12小时），太阳几乎直射赤道。此处特指秋分当天的昼夜，用定冠词the修饰。
53．所以在这一天，人们会举行一些特别的活动来庆祝它。activity是可数名词，some后接可数名词复数，activity的复数形式为activities。
54．把鸡蛋竖着立起来。此处位于小标题，用动名词形式与下文的“Sending the autumn cattle和Eating qiucai”并列，stand的动名词形式为standing，句首要首字母大写。
55．在秋分这一天，世界各地成千上万的人尝试让鸡蛋竖着立起来。此处修饰名词ends，要用形容词性物主代词，they的形容词性物主代词是their。
56．到目前为止，这个中国习俗已经成为了世界的游戏。标志词So far（到目前为止）是现在完成时的标志，主语this Chinese custom是单数，助动词用has，become的过去分词形式不变。
57．有经验的人说，存放了大约四五天的鸡蛋比其他鸡蛋更适合做这个游戏。句中有than表示比较，要用good的比较级better。
58．在秋分这天，人们常常带着这些纸挨家挨户地走，说或唱一些带有美好祝愿的话语。这样他们可能会得到一些零花钱。空格前后是顺承关系，用and连接。
59．秋菜是一种野生的秋天的蔬菜。a kind of是固定搭配，意为“一种”。
60．人们认为它可以清理肝脏和肠道，使人健康。It is believed that…是固定句型，it作形式主语，that从句是真正的主语。
61．with 62．are built 63．an 64．to keep 65．greatly 66．older 67．methods 68．deserts 69．their 70．so
本文介绍了库布齐沙漠的治沙变化，讲述了当地农民通过草方格等传统与现代结合的方法治理沙漠，让“死亡之地”逐渐变为绿洲，体现了人与自然和谐共处的理念。
61．在寒冷的冬天，农民们忙于治沙工作。 根据“farmers are busy ... sand-control work”及固定搭配可知，此处考查短语be busy with sth.，意为“忙于某事”。故填with。
62．这些草方格由农民们建造，用来固定流动的沙子。 根据“The straw checker-boards ... (build) by farmers”可知，主语The straw checker-boards和动词build之间是被动关系，且句子时态为一般现在时，一般现在时的被动语态结构为“be+过去分词”，主语为复数，be动词用are，build的过去分词是built。故填are built。
63．张勇，一位有经验的农民，说：“我们每年都用这些草方格来保护土地免受风沙侵袭。” 根据“Zhang Yong, ... experienced farmer says”可知，此处表示“一位有经验的农民”，experienced以元音音素开头，不定冠词用an。故填an。
64．我们每年都用这些草方格来保护土地免受风沙侵袭。 根据“We use these straw checkerboards every year ... (keep) the land safe from the sand”可知，此处用动词不定式作目的状语，表达“使用草方格”的目的是“保护土地”。故填to keep。
65．自20世纪50年代以来，在当地人的辛勤努力下，情况发生了巨大变化。 根据“things have changed ... (great)”可知，此处修饰动词changed，需要用副词作状语，great的副词形式greatly意为“极大地”，符合语境。故填greatly。
66．牧民旺吉勒比他的大多数邻居都年长，看到这些变化他感到非常自豪。 根据“who is ... (old) than most of his neighbours”可知，than是比较级的标志词，old的比较级是older。故填older。
67．成功的关键在于将新工具与传统方法相结合。 根据“mixing new tools with traditional ... (method)”可知，method是可数名词，此处表示“多种传统方法”，需要用复数形式methods。故填methods。
68．我们怎样才能和沙漠共处呢？ 根据“How can we stay together with ... (desert) ”可知，此处表示“沙漠”这一类事物，需要用复数形式deserts。故填deserts。
69．他的答案是“通过理解它们的方式”。 根据“by understanding ... (they) ways”可知，此处修饰名词ways，需要用形容词性物主代词作定语，they的形容词性物主代词是their。故填their。
70．虽然这是一项长期的工作，但人们仍然充满希望，所以他们将在未来几年继续治沙工作。 根据“people are still full of hope, ... they will continue sand-control work in the following years”可知，前后句为因果关系，前因后果，so意为“所以”，符合语境。故填so。
71．to encourage 72．have supported 73．the 74．volunteers 75．is written 76．coastal 77．healthiest 78．from/against 79．what 80．their
本文介绍了中国科普书《坝光有片银叶树》，该书旨在鼓励人们保护银叶树。书中介绍了银叶树的种子如何到达、如何长成树木，以及坝光自然学校和志愿者如何照顾这些古树。同时，文章还强调了红树林对沿海地区的重要性，以及银叶树在保护村庄免受风暴侵袭方面的作用。
71．作者们写这本书是为了鼓励人们保护这些树。根据“wrote it”可知，此处表示写书的目的，因此用不定式“to encourage”作目的状语。故填to encourage。
72．自2009年以来，他们一直在深圳大鹏支持他们。根据“since 2009”可知，此处描述的是从过去某一时间开始一直持续到现在的动作，且可能继续持续下去，因此用现在完成时，主语为They，用have + 过去分词，support的过去分词为supported。故填have supported。
73．这本书展示了种子是如何到达、长成树木的，以及坝光自然学校和它的志愿者们是如何照顾这些古树的。根据“grew into”可知，此处特指前面提到的种子长成的树木，因此用定冠词“the”修饰。故填the。
74．这本书展示了种子是如何到达、长成树木的，以及坝光自然学校和它的志愿者们是如何照顾这些古树的。根据“its … care for the ancient trees.”可知，此处表示坝光自然学校的志愿者们，且志愿者不止一个，因此用复数形式“volunteers”。故填volunteers。
75． 它适合儿童和非科学家，因为它是以一种容易理解的方式写的。根据“it”和“write”之间是被动关系，且描述的是书的特性，因此用一般现在时的被动语态be + 过去分词，主语it为单数形式，be动词用is，write的过去分词为written。故填is written。
76．红树林对沿海地区很重要。根据“areas”可知，此处表示沿海地区，因此用形容词“coastal”修饰。故填coastal。
77． 盐灶的银叶树是世界上最古老、最健康的。根据“the oldest and … ”可知，此处表示银叶树是最古老且最健康的，因此用最高级形式“healthiest”和oldest并列。故填healthiest。
78．这些树保护村庄免受风暴的侵袭。根据“protect the village”可知，此处表示保护村庄免受风暴的侵袭，因此用介词“from/against”表示“免受”。故填from/against。
79．这本书对于任何想知道他们能做什么来了解和帮助保护银叶树的人来说都是一本有用的指南。根据“know”可知，此处表示想知道的内容，且该内容在句中作“do”的宾语，因此用连接词“what”引导宾语从句。故填what。
80．它回答了关于红树林及其动植物以及如何研究它们的问题。根据“plants and animals”可知，此处表示红树林的动植物，因此用形容词性物主代词“their”修饰。故填their。
81．sunny 82．a 83．through 84．to study 85．returned 86．reports 87．made 88．his 89．carefully 90．passed
本文通过介绍中国现代气象学奠基人竺可桢的生平事迹与科研贡献，展现了他对中国气象事业的卓越成就，表达了后人对他的敬仰与缅怀之情。
81．这是一个晴朗的日子，你准备好去上学了。 day是名词，此处应用sun的形容词形式sunny修饰名词day。故填sunny。
82．多亏了竺可桢，一位伟大的中国气象学家，我们通过天气预报更好地了解了天气。 meteorologist是可数名词单数，此处表示“一位”，且great发音以辅音音素开头。故填a。
83．多亏了竺可桢，一位伟大的中国气象学家，我们通过天气预报更好地了解了天气。 此处表示“通过”天气预报获取信息，用介词through表方式。故填through。
84．1910年，他前往美国学习气象学。 此处用不定式to study作目的状语，表示去美国的目的是学习气象学。故填to study。
85．在那里完成学业后，他没有同意在美国大学任教，而是回到了中国。 根据上下文的“didn’t agree”可知，句子时态为一般过去时，return应用过去式returned。故填returned。
86．在他的努力下，中国人民后来有了自己的天气预报。 weather report是可数名词，此处表示泛指“天气预报”这一类事物，应用复数形式reports。故填reports。
87．竺可桢养成了每天观察天气的习惯。 根据后文的“got up”可知，句子时态为一般过去时，make应用过去式made。故填made。
88．无论晴雨，竺可桢每天早起，手里拿着他的日记走到户外。 diary是名词，此处应用he的形容词性物主代词his修饰名词diary。故填his。
89．他仔细观察云和风向。 observed是动词，此处应用careful的副词形式carefully修饰动词observed。故填carefully。
90．尽管竺可桢在1974年去世了，但人们至今仍在纪念他，并将永远纪念他。 根据时间状语in 1974可知，句子时态为一般过去时，pass应用过去式passed。故填passed。
91．called 92．for 93．covered 94．their 95．and 96．cleaner 97．insects 98．an 99．are learning 100．difference
本文是一篇说明文。主要介绍了甘肃民勤的人们通过种植梭梭树治理沙漠、改善环境，他们的做法值得全国人民学习。
91．在甘肃省，有一个叫作民勤的地方。a place与Minxin之间为被动关系，此处应用过去分词作后置定语。故填called。
92．那里的人们已经和沙漠抗争了很多年。根据“have been fighting against ... many years”可知，此句是现在完成时，在现在完成时中，for加一段时间表示动作持续多久。故填for。
93．过去沙漠不断扩大，沙尘暴经常淹没他们的田地和房屋。 根据“in the past”可知，需用动词的过去式形式。故填covered。
94．为了保护他们的家园，当地人决定种植一种叫作梭梭树的特殊树木。根据“homes”可知，需用形容词性物主代词，they的形容词性物主代词是their。故填their。
95．每个人都辛勤劳作，就连孩子们也帮忙运水。根据前后句可知，此处需用连词连接两个并列分句，表顺承递进关系，所以用and。 故填and。
96．而且，它们让空气比以前更干净了。根据“than”可知，需用形容词比较级，clean的比较级是cleaner。 故填cleaner。
97．许多动物，比如鸟类和昆虫，正重新回到这片土地。根据“birds and ...”可知，此处是并列的名词，insect是可数名词，这里表泛指，需用复数insects。故填insects。
98．“我们会继续照料这些树。”一位老农民说。 根据“ ... old farmer”可知，此处指一位老农民，泛指；old以元音音素开头，所以用不定冠词an。故填an。
99．现在全中国的人都在学习民勤的故事。根据“now”可知，表示当前正在进行的动作，用现在进行时，主语people是复数，所以be动词用are，learn变learning。故填are learning。
100．这能对环境产生巨大的影响。根据“make a big ... ”可知，make a difference意为“有影响，起作用”。故填difference。
101．largest 102．was 103．because 104．and 105．to 106．houses 107．really 108．the 109．saving 110．us
本文是一篇说明文，主要介绍了撒哈拉沙漠的地理位置、气候条件、自然资源以及当地人为改善生活条件和保护环境所做的努力。
101．它是世界上最大的热沙漠。此处表示“最大的”，需用形容词最高级，且句中有范围“in the world”。large“大的”是形容词，其最高级形式为largest。故填largest。
102．过去那里的生活对人类来说比其他地方困难得多。主语Life是单数，且时间状语in the past提示为过去的情况，谓语动词需用一般过去时。be动词的单数过去式是was。故填was。
103．因为那里很难种植植物和找到水源。后句解释前句“生活更困难”的原因，需用连词引导原因状语从句。because“因为”是连词，符合语境。故填because。
104．这里全年都非常炎热干燥。hot和dry是两个并列的形容词，描述气候特点，需用并列连词连接。and“和”是连词，符合语境。故填and。
105．他们开始把它卖给其他国家。sell sth. to sb.“把某物卖给某人”是动词短语，to是介词，表示对象。故填to。
106．然后他们有了钱在沙漠里建造房屋和道路。build后需接名词作宾语，且houses和roads并列，需用名词复数形式。house“房屋”的复数形式为houses。故填houses。
107．人们非常担心环境恶化。此处修饰形容词worried，需用副词形式。real“真正的”是形容词，其副词形式为really“真正地，非常”。故填really。
108．所以在过去几年里，政府努力植树。in the past few years“在过去几年里”是介词短语，需用定冠词the。故填the。
109．他们还开展了一些项目，让人们认识到节约用水的重要性。介词of后需接动名词形式作宾语。save“节约”是动词，其动名词形式为saving。故填saving。
110．撒哈拉沙漠提醒我们，自然和人类同样重要。动词reminds后需接人称代词的宾格形式作宾语。we“我们”是人称代词主格，其宾格形式为us。故填us。
111．have lived 112．problems 113．are being destroyed 114．which 115．Protecting 116．cutting 117．of 118．to keep 119．sorting 120．will be
本文是一篇议论文，主要讲述了人与自然和谐相处的重要性，以及当前环境面临的威胁和我们应该采取的保护措施。
111．几千年来，人们一直与自然和平相处，但现在许多问题出现了。根据时间状语“For thousands of years”可知，动作从过去持续到现在，应用现在完成时，结构为have/has done。主语是“people”，助动词用have；live“居住”，动词，过去分词为lived。故填have lived。
112．几千年来，人们一直与自然和平相处，但现在许多问题出现了。空处位于“many”后，填可数名词复数。problem“问题”，可数名词，复数形式为problems。故填problems。
113．许多野生动物处于危险之中，因为它们的家园正被人类破坏。根据“A lot of wild animals are in danger”可知，破坏是正在进行的动作，此句时态用现在进行时。且“homes”与动词destroy“毁坏”之间为被动关系，应用现在进行时的被动语态，结构为am/is/are being done。主语“homes”是复数，be动词用are；destroy的过去分词为destroyed。故填are being destroyed。
114．空气和水受到严重污染，这使得所有生物难以生存。空处引导非限制性定语从句，指代前面整个句子，并在从句中作主语，应用关系代词which。故填which。
115．保护自然已成为世界知名的任务。protect“保护”，动词。空处作主语，应用动名词形式的protecting，且位于句首，首字母大写。故填Protecting。
116．我们应该停止砍伐树木和捕猎野生动物。stop doing sth.意为“停止做某事”，空处填动名词。cut“切”，动词，动名词为cutting。故填cutting。
117．我们可以使用可重复使用的东西代替塑料制品。根据“reusable things”和“plastic products”可知，此处指用可重复使用的东西代替塑料制品。instead of是固定搭配，意为“代替”，故填of。
118．政府制定了严格的法律以保持自然平衡。此处用动词不定式作目的状语，表示制定法律的目的。keep“保持”，动词，不定式为to keep。故填to keep。
119．作为学生，我们在日常生活中可以做一些小事，像节约用水和垃圾分类。空处与“saving”并列，作介词“like”的宾语，应用动名词形式。sort“分类”，动词，动名词为sorting。故填sorting。
120．如果我们尽力与大自然和谐共处，世界将变得越来越美丽。此句为if引导的条件状语从句中，主句用一般将来时，从句用一般现在时。空处位于主句，用一般将来时，结构为will do。be“是”，动词。故填will be。

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