Unit 8 Our Blue Planet 期末复习 词性转换,重点单词,短语,语法,句型分层练习100题-2025-2026学年仁爱科普版 初中英语七年级下册

**基本信息** 聚焦环保主题，通过词汇形态转换、汉译英及句型应用三阶训练，系统强化Unit 8核心语言知识，融合语法规则与语境表达，提升语言运用能力与环保意识。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |词汇适当形式填空|40题|词形转换（名/形/副）、固定搭配（in danger）、时态（过去进行时）|从单词词性变化到语法规则应用，构建词汇-语法关联| |汉语提示写单词|40题|名词单复数、动词原形（情态动词后）、固定短语（ozone layer）|从汉译英到主题词汇积累，强化环保术语掌握| |完成句子|20题|句型结构（not only...but also...）、时态呼应（if从句）、短语搭配（take action）|从短语到复合句，实现词汇-句型-语篇表达递进|

班级_____ 姓名______ 学号______ 分数_______ 仁爱科普版（新教材）七年级下册Unit 8 Our Blue Planet期末专项练习100题 （时间：60分钟 满分：120分） 词汇专项练习 一、用括号内所给单词的适当形式填空（40小题，每小题1分，共40分） 1．We should take action to reduce air ________ (pollute). 2．It's important for us to protect ________ (danger) animals. 3．________ (recycle) paper is a good way to save trees. 4．The factory has caused serious ________ (pollute) to the river. 5．She felt ________ (worry) about the future of the polar bears. 6．We can save energy by ________ (turn) off the lights when leaving. 7．The government is trying to improve the ________ (environment) condition. 8．________ (protect) our blue planet is everyone's duty. 9．He is interested in ________ (study) the effects of global warming. 10．Many wild animals are in ________ (dangerous) because of human activities. 11．The teacher encouraged us ________ (take) part in the environmental activity. 12．Walking to school is a ________ (use) way to reduce carbon emissions. 13．We must avoid ________ (waste) water in our daily life. 14．The ________ (pollute) air makes people feel sick. 15．She made a ________ (decide) to stop using plastic bags. 16．________ (lucky), we have more and more people joining the green movement. 17．The ________ (survive) of some species depends on our help. 18．He spoke ________ (clear) about the importance of recycling. 19．We need to be more ________ (care) about the waste we produce. 20．The ________ (warm) of the earth is getting worse due to global warming. 21．They are trying ________ (develop) new ways to reuse waste. 22．________ (plant) more trees can help improve the air quality. 23．The river is ________ (serious) polluted by the nearby factories. 24．We should use ________ (little) plastic to protect the environment. 25．His ________ (suggest) about saving energy is very useful. 26．When we arrived, the workers ________ (clean) up the beach. 27．By the end of last year, they ________ (plant) over 10,000 trees. 28．Look! The students ________ (collect) waste paper in the park. 29．She ________ (not finish) her report on environmental protection yet. 30．The number of endangered animals ________ (increase) if we don't act. 31．________ (honest) speaking, we still have a lot to do to protect the earth. 32．It's ________ (help) to learn about environmental knowledge. 33．The ________ (organize) holds a clean-up activity every month. 34．We felt ________ (excite) when we saw the clean river again. 35．He has been ________ (work) as a volunteer for the green project for two years. 36．About five ________ (hundred) students joined the tree-planting activity. 37．The ________ (twelve) lesson in this unit is about ocean protection. 38．At this time last Sunday, we ________ (pick) up rubbish by the lake. 39．She ________ (not attend) the environmental meeting yesterday. 40．Three ________ (quarter) of the earth's surface is covered by water. 二、根据汉语提示完成单词（40小题，每小题1分，共40分） 1．We should ________ (保护) the environment for future generations. 2．Too much ________ (污染) is harmful to our health. 3．It's necessary to ________ (回收利用) plastic bottles. 4．Many ________ (濒危的) animals are losing their homes. 5．The ________ (海洋) is home to millions of sea creatures. 6．Cutting down ________ (森林) will lead to soil erosion. 7．Don't ________ (浪费) food. Every grain comes from hard work. 8．We need to save ________ (能源) to reduce costs. 9．________ (塑料) bags are hard to break down and cause pollution. 10．Please throw the ________ (垃圾) into the bin. 11．We should ________ (减少) the use of private cars. 12．________ (重复使用) glass bottles is a good way to protect the earth. 13．The ________ (大气层) protects us from harmful rays. 14．________ (碳) dioxide is one of the main greenhouse gases. 15．________ (全球的) warming is a serious problem for the whole world. 16．We can join the environmental ________ (组织) to take action. 17．Being a ________ (志愿者) is a meaningful experience. 18．We need to take immediate ________ (行动) to save the earth. 19．The ________ (温度) of the earth is rising year by year. 20．________ (北极熊) are losing their living places because of melting ice. 21．________ (酸雨) can damage forests and buildings. 22．We should use ________ (可再生的) energy like solar power. 23．The ________ (沙漠) is expanding due to deforestation. 24．________ (湿地) are important habitats for many birds. 25．We must ________ (意识到) the importance of environmental protection. 26．________ (垃圾填埋场) take up a lot of land and pollute the soil. 27．________ (节约) water is everyone's responsibility. 28．The ________ (污染者) should be punished for their actions. 29．________ (可持续的) development is the key to a better future. 30．We can ________ (分类) waste to make recycling easier. 31．The ________ (臭氧) layer protects us from UV rays. 32．________ (化学物质) from factories can pollute the water. 33．We should plant more ________ (树) to make the air cleaner. 34．________ (鲸鱼) are large sea animals that need our protection. 35．________ (干旱) is becoming more frequent in some areas. 36．We can use ________ (布) bags instead of plastic bags. 37．The ________ (冰川) are melting faster than before. 38．________ (洪水) can destroy houses and crops. 39．We need to ________ (教育) people about environmental protection. 40．________ (绿色的) energy is good for the environment. 短语和句型专项练习 三、完成句子（20小题，每小题2分，共40分） 1．保护我们的蓝色星球不仅是我们的责任，也是我们的义务。 Protecting our blue planet is ________ ________ our duty ________ ________ our obligation. 2．我们应该停止砍伐森林，多种树。 We should ________ ________ forests and ________ more trees. 3．全球变暖正威胁着许多动物的生存。 Global warming ________ ________ the survival of many animals. 4．过去十年里，这个地区的森林面积已经减少了30%。 ________ ________ ________ ________, the forest area in this region ________ ________ by 30%. 5．我们可以通过骑自行车来减少碳排放。 We can ________ carbon emissions ________ ________ bikes. 6．没有干净的水，人类就无法生存。 Humans cannot ________ ________ clean water. 7．政府已经采取措施来控制空气污染。 The government ________ ________ ________ ________ control air pollution. 8．我们不仅要节约水，还要循环利用水。 We should ________ ________ save water ________ ________ recycle it. 9．当我们看到垃圾时，应该把它捡起来扔进垃圾桶。 When we see rubbish, we should ________ it ________ and ________ it ________ the bin. 10．加入环保俱乐部是了解更多环保知识的好方法。 ________ the environmental club is a good way ________ ________ more about environmental protection. 11．如果我们不采取行动，更多的动物将会灭绝。 More animals ________ ________ if we ________ ________ action. 12．她花了两个小时清理海滩上的垃圾。 She ________ two hours ________ ________ rubbish on the beach. 13．减少塑料使用对地球有好处。 ________ plastic use ________ ________ ________ the earth. 14．老师鼓励我们在日常生活中做一些环保小事。 The teacher ________ us ________ ________ small green things in our daily life. 15．每年都有越来越多的人参加植树活动。 More and more people ________ ________ ________ tree-planting activities every year. 16．湿地为许多鸟类提供了栖息地和食物。 Wetlands ________ habitats and food ________ many birds. 17．我们必须意识到保护濒危动物的重要性。 We must ________ ________ ________ ________ protecting endangered animals. 18．太阳能是一种清洁且可再生的能源。 Solar energy is a ________ and ________ energy source. 19．昨天这个时候，我们正在社区里收集可回收垃圾。 We ________ ________ ________ recyclable waste in the community ________ ________ ________ yesterday. 20．拯救地球永远不会太晚。 It's ________ ________ ________ to save the earth. 答案+详细解析 一、用括号内所给单词的适当形式填空（40题，每题1分） 1. pollution 解析：air后接名词作宾语；pollute（动词，污染）→ pollution（名词，污染）。 2. endangered 解析：修饰animals用形容词；danger（名词）→ endangered（形容词，濒危的）。 3. Recycling 解析：动名词作主语；recycle → Recycling，句首首字母大写。 4. pollution 解析：serious修饰名词；pollute → pollution。 5. worried 解析：固定搭配feel worried about 为……感到担忧。 6. turning 解析：介词by后接动名词；turn → turning。 7. environmental 解析：修饰condition用形容词；environment（名词）→ environmental（形容词，环境的）。 8. Protecting 解析：动名词作主语；protect → Protecting，句首大写。 9. studying 解析：固定搭配be interested in doing sth. 对做某事感兴趣。 10. danger 解析：固定短语in danger 处于危险中。 11. to take 解析：固定搭配encourage sb. to do sth. 鼓励某人做某事。 12. useful 解析：修饰way用形容词；use（动词/名词）→ useful（形容词，有用的）。 13. wasting 解析：固定搭配avoid doing sth. 避免做某事。 14. polluted 解析：修饰air用形容词；pollute → polluted（被污染的）。 15. decision 解析：a后接单数名词；decide（动词）→ decision（名词，决定）。 16. Luckily 解析：副词作状语修饰整个句子；lucky → Luckily，句首大写。 17. survival 解析：the后接名词；survive（动词）→ survival（名词，生存）。 18. clearly 解析：修饰动词spoke用副词；clear → clearly。 19. careful 解析：be后接形容词；care → careful（小心的，注意的）。 20. warmth 解析：the后接名词；warm（形容词）→ warmth（名词，温度，温暖）。 21. to develop 解析：固定搭配try to do sth. 努力做某事。 22. Planting 解析：动名词作主语；plant → Planting，句首大写。 23. seriously 解析：修饰形容词polluted用副词；serious → seriously。 24. less 解析：结合语境表示“更少的塑料”，用little的比较级less。 25. suggestion 解析：his后接名词；suggest（动词）→ suggestion（名词，建议）。 26. were cleaning 解析：when引导时间状语从句，从句用一般过去时，主句用过去进行时；workers是复数，故用were cleaning。 27. had planted 解析：by the end of last year是过去完成时标志，结构为had+过去分词；plant → had planted。 28. are collecting 解析：Look!是现在进行时标志，students是复数，故用are collecting。 29. hasn't finished 解析：yet是现在完成时标志，she是单数，否定式为hasn't finished。 30. will increase 解析：if引导条件状语从句，从句用一般现在时，主句用一般将来时。 31. Honestly 解析：固定短语honestly speaking 老实说，句首大写。 32. helpful 解析：It's+形容词+to do sth.结构；help → helpful（有帮助的）。 33. organization 解析：the后接名词；organize（动词）→ organization（名词，组织）。 34. excited 解析：feel后接形容词修饰人；excite → excited（感到兴奋的）。 35. working 解析：has been doing是现在完成进行时结构，表示动作持续到现在。 36. hundred 解析：hundred前有具体数字five时，不加s。 37. twelfth 解析：定冠词the后接序数词；twelve → twelfth（第十二）。 38. were picking 解析：at this time last Sunday是过去进行时标志，we是复数，故用were picking。 39. didn't attend 解析：yesterday是一般过去时标志，否定式用didn't+动词原形。 40. quarters 解析：three后接可数名词复数；quarter → quarters。 二、根据汉语提示完成单词（40题，每题1分） 1. protect 解析：情态动词should后接动词原形。 2. pollution 解析：too much后接不可数名词。 3. recycle 解析：It's necessary to do sth.结构，用动词原形。 4. endangered 解析：形容词修饰animals。 5. ocean 解析：the后接名词，特指地球的海洋。 6. forests 解析：forests表示泛指的森林，用复数。 7. waste 解析：祈使句否定式，用动词原形。 8. energy 解析：save energy 节约能源，energy为不可数名词。 9. Plastic 解析：plastic bags 塑料袋，句首首字母大写。 10. rubbish 解析：rubbish为不可数名词。 11. reduce 解析：情态动词should后接动词原形。 12. Reusing 解析：动名词作主语，句首大写。 13. atmosphere 解析：the后接名词。 14. Carbon 解析：carbon dioxide 二氧化碳，句首大写。 15. Global 解析：global warming 全球变暖，句首大写。 16. organization 解析：environmental修饰名词。 17. volunteer 解析：a后接单数名词。 18. action 解析：take action 采取行动，固定短语。 19. temperature 解析：the后接名词。 20. Polar bears 解析：谓语are为复数，主语用复数Polar bears，句首大写。 21. Acid rain 解析：acid rain 酸雨，句首大写。 22. renewable 解析：形容词修饰energy。 23. desert 解析：the后接名词，特指某一沙漠或泛指沙漠。 24. Wetlands 解析：谓语are为复数，主语用复数Wetlands，句首大写。 25. realize/realise 解析：情态动词must后接动词原形。 26. Landfills 解析：谓语take为复数，主语用复数Landfills，句首大写。 27. Saving 解析：动名词作主语，句首大写。 28. polluters 解析：the后接复数名词，表示一类人。 29. Sustainable 解析：形容词修饰development，句首大写。 30. sort 解析：情态动词can后接动词原形。 31. ozone 解析：ozone layer 臭氧层，固定短语。 32. Chemicals 解析：谓语can pollute为复数概念，主语用复数Chemicals，句首大写。 33. trees 解析：more后接可数名词复数。 34. Whales 解析：谓语are为复数，主语用复数Whales，句首大写。 35. Drought 解析：作主语用名词，句首大写。 36. cloth 解析：cloth bags 布袋，固定短语。 37. glaciers 解析：谓语are为复数，主语用复数glaciers。 38. Floods 解析：谓语can destroy为复数概念，主语用复数Floods，句首大写。 39. educate 解析：情态动词need to后接动词原形。 40. Green 解析：形容词修饰energy，句首大写。 三、完成句子（20题，每题2分） 1. not only; but also 解析：固定短语not only...but also... 不仅……而且……。 2. stop cutting; plant 解析：stop doing sth. 停止做某事；plant与stop并列，用动词原形。 3. is threatening 解析：现在进行时表示正在发生的动作；主语Global warming是单数，故用is threatening。 4. In the past decade; has decreased 解析：In the past decade是现在完成时标志；主语forest area是单数，故用has decreased。 5. reduce; by riding 解析：reduce 减少；by+动名词表示方式。 6. survive without 解析：survive 生存；without 没有。 7. has taken measures to 解析：现在完成时表示已完成的动作；take measures to do sth. 采取措施做某事。 8. not only; but also 解析：固定短语not only...but also...，连接两个并列的动词短语。 9. pick; up; throw; into 解析：pick up 捡起；throw...into... 把……扔进……。 10. Joining; to learn 解析：动名词作主语；a way to do sth. 做某事的方法。 11. will die out; don't take 解析：if引导条件状语从句，主句一般将来时，从句一般现在时；die out 灭绝；take action 采取行动。 12. spent; cleaning up 解析：spend time doing sth. 花费时间做某事；clean up 清理。 13. Reducing; is good for 解析：动名词作主语；be good for 对……有好处。 14. encourages; to do 解析：encourage sb. to do sth. 鼓励某人做某事；主语teacher是单数，谓语用encourages。 15. take part in 解析：take part in 参加；一般现在时，主语people用原形。 16. provide; for 解析：provide sth. for sb. 为某人提供某物；主语Wetlands是复数，谓语用provide。 17. realize the importance of 解析：realize 意识到；the importance of……的重要性。 18. clean; renewable 解析：clean 清洁的；renewable 可再生的，两个形容词并列修饰energy source。 19. were collecting; at this time 解析：at this time yesterday是过去进行时标志；主语we用were collecting。 20. never too late 解析：固定句型It's never too late to do sth. 做某事永远不会太晚。 学科网（北京）股份有限公司 $