Unit8 Our Blue Planet 单元语法知识专项训练 2025-2026学年仁爱科普版英语七年级下册

**基本信息** 围绕“Our Blue Planet”环保主题，整合词汇分类、语法应用及语篇训练，构建从基础到综合的知识逻辑链，题型覆盖词汇辨析、语法填空、改错等，强化语言能力与思维品质。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |词汇分类|5题（不同类单词）|基础词汇辨析|从环保主题词汇（ocean/protect等）建立语义关联| |语法应用|50题（单选/填空/改错）|语法点多维度应用|核心语法（there be/情态动词/非谓语等）在环保语境中分层训练| |语篇综合|25题（完形/句型转换/短文填空）|语篇层面语法综合运用|从单句语法到语篇连贯，实现语法知识向语言能力转化|

参考答案及详细解析 一、选出不同类的一项（每题1分，共5分） 1.C 解析：ABD均为水域类名词，C为森林（陆地景观）。 2.D 解析：ABC均为动词（环保动作），D为形容词（脏的）。 3.D 解析：ABC均为污染垃圾类名词，D为动词（回收）。 4.D 解析：ABC为星球世界类总称，D为动物。 5.D 解析：ABC均为形容词，D为动词（产生）。 二、单项选择题（每题1分，共15分） 1.A 解析：there be就近原则，water不可数，用is。 2.C 解析：must 必须，强调保护地球是义务。 3.B 解析：plastic不可数名词，谓语动词用单数is。 4.C 解析：固定搭配 need to do sth. 需要做某事。 5.C 解析：Look! 现在进行时标志，be+doing。 6.C 解析：water不可数，否定用much修饰。 7.B 解析：stop doing sth. 停止正在做的事（停止浪费水）。 8.A 解析：答句为具体做的事，用What提问。 9.B 解析：rubbish不可数，一般现在时谓语三单。 10.A 解析：情态动词must后接动词原形。 11.C 解析：if引导条件状语从句，主句将来时。 12.C 解析：than提示用形容词比较级more dangerous。 13.A 解析：It’s + adj. + for sb. to do 固定句型。 14.A 解析：every day一般现在时，主语复数用原形。 15.B 解析：use sth. to do sth. 用某物做某事。 三、情景对话语法填空（每题1分，共10分） 1.is 2. do 3. wasting 4. is 5. to plant 6.make 7. are cleaning 8. play 9. needs 10. try 四、用括号内单词的正确形式填空（每题1分，共20分） 1.protect 2. pollution 3. animals 4. harmful 5. to save 6.are recycling 7. kills 8. isn’t 9. cutting 10. knows 11.is 12. cleaner 13. fewer 14. to improve 15. throw 16.are becoming 17. to help 18. dangerous 19. fish 20. needs 五、语法改错（共20分） A. 单句改错（每题1分，共10分） 1.are → is（water不可数，就近原则） 2.去掉to（should后接动词原形） 3.many → much（pollution不可数） 4.of → for（It’s+adj.+for sb.） 5.to waste → wasting（stop doing 停止做某事） 6.make → makes（rubbish不可数，三单） 7.clean → are cleaning（现在进行时） 8.have → are（there be句型无have） 9.plant → to plant（need to do） 10.dangerouser → more dangerous（多音节比较级） B. 语段改错（每题2分，共10分） 1.many → much（water不可数） 2.them → it（指代不可数环境资源） 3.make → makes（rubbish三单） 4.does → do（should后接原形） 5.protect → to protect（It’s duty to do） 六、完形填空（每题1分，共10分） 1.B 2. A 3. A 4. A 5. C 6.A 7. A 8. A 9. B 10. B 七、句型转换（每题2分，共20分） 1.isn’t any 2.What should; do 3.isn’t good 4.Are; cleaning 5.What do; do 6.made 7.What’s important 8.aren’t many 9.Must; play 10.It’s; to 八、语法短文填空（每空2分，共10分） 1.is 2. is facing 3. save 4. plant 5. make 九、连词成句（每题2分，共10分） 1.We should protect our blue planet. 2.We must stop wasting water. 3.It is important to protect the Earth. 4.We can reduce pollution everyday. 5.Trees make the air fresh. 学科网（北京）股份有限公司 $ 仁爱科普版七年级下册Unit8 Our Blue Planet 语法知识专项训练 （满分120分） 一、选出不同类的一项（每题1分，共5分） ( ) 1. A. ocean B. river C. forest D. water ( ) 2. A. save B. protect C. clean D. dirty ( ) 3. A. plastic B. rubbish C. pollution D. recycle ( ) 4. A. earth B. planet C. world D. animal ( ) 5. A. important B. beautiful C. harmful D. produce 二、单项选择题（每题1分，共15分） ( ) 1. There ______ lots of clean water and green trees on our Earth. A. is B. are C. was D. were ( ) 2. We ______ protect our blue planet. It’s our duty. A. can B. may C. must D. could ( ) 3. Too much plastic ______ bad for the ocean and sea animals. A. be B. is C. are D. was ( ) 4. We need ______ more trees to make our planet greener. A. plant B. planting C. to plant D. plants ( ) 5. Look! The students ______ rubbish in the park now. A. pick B. picks C. are picking D. picked ( ) 6. There isn’t ______ clean water in many places now. A. many B. few C. much D. a lot ( ) 7. We should stop ______ water. It’s very precious. A. waste B. wasting C. to waste D. wasted ( ) 8. —______ do we need to protect the Earth? —We need to save water and reduce pollution. A. What B. Where C. When D. How ( ) 9. Rubbish ______ the river dirty and harmful. A. make B. makes C. making D. made ( ) 10. We must ______ single-use plastic products. A. avoid B. avoiding C. to avoid D. avoids ( ) 11. There ______ fewer fish in the sea if we pollute the ocean. A. is B. are C. will be D. was ( ) 12. This kind of pollution is ______ dangerous than before. A. very B. much C. more D. most ( ) 13. It’s important ______ everyone to protect our planet. A. for B. of C. to D. with ( ) 14. Many sea animals ______ in the clean ocean every day. A. live B. lives C. lived D. living ( ) 15. We can reuse bottles ______ the environment clean. A. keep B. to keep C. keeping D. keeps 三、情景对话语法填空（所给词适当形式，每题1分，共10分） A: Our Earth ________ (be) our only home. We should protect it. B: Yes. What can we ________ (do) to save our blue planet? A: First, we should stop ________ (waste) water every day. B: Good idea. There ________ (be) little clean water on the Earth now. A: Second, we need ________ (plant) more trees. Trees ________ (make) the air fresh. B: Look! Many students ________ (clean) the park over there. A: Everyone must ________ (play) a role in protecting the Earth. B: Protecting our planet ________ (need) everyone’s effort. Let’s ________ (try) our best. 四、用括号内单词的正确形式填空（每题1分，共20分） 1.We should ________ (protect) our beautiful planet. 2.There is lots of ________ (pollute) in the river. 3.Many ________ (animal) lose their homes because of pollution. 4.It’s ________ (harm) to throw rubbish into the ocean. 5.We need ________ (save) every drop of water. 6.Look! They ________ (recycle) old paper and bottles now. 7.Too much plastic ________ (kill) sea animals every year. 8.There ________ (not be) much clean water in this area now. 9.We must stop people from ________ (cut) down trees. 10.Everyone ________ (know) the importance of protecting the Earth. 11.Reusing things ________ (be) a good way to reduce waste. 12.We should make our planet ________ (clean) and greener. 13.There will be ________ (few) trees if we keep cutting them. 14.It takes time ________ (improve) our environment. 15.Don’t ________ (throw) rubbish everywhere. 16.Many rivers ________ (become) dirty now. 17.We can do many things ________ (help) our blue planet. 18.Single-use plastics are ________ (danger) for sea life. 19.There are different kinds of ________ (fish) in the ocean. 20.Saving water ________ (need) our daily effort. 五、语法改错（共20分） A. 单句改错（每题1分，共10分） 1.There are little clean water on the Earth. → ____________ 2.We should to protect our blue planet. → ____________ 3.Too many pollution harms the sea animals. → ____________ 4.It’s important of us to save water. → ____________ 5.We must stop to waste water and food. → ____________ 6.Rubbish make the river dirty and bad. → ____________ 7.Look! The students clean the park now. → ____________ 8.There have fewer fish in the polluted sea. → ____________ 9.We need plant more trees around us. → ____________ 10.This problem is more dangerouser than before. → ____________ B. 语段改错（共10分，找出并改正5处错误） Our Earth is a beautiful blue planet. There are many water and fresh air on it. But many people pollute them. Rubbish make the ocean dirty. We should does our best to protect our home. It’s everyone’s duty protect the environment. 1.________ 2.________ 3.________ 4.________ 5.________ 六、完形填空（每题1分，共10分） The Earth is our only blue planet. It 1 us clean water, fresh air and beautiful living places. But now our planet is in 2 . Water pollution is very 3 . Lots of rubbish goes into rivers and the ocean. Many sea animals 4 their lives. Air pollution makes the air 5 and harmful for us to breathe. We must do something to 6 our home. We should save water, 7 trees and reduce plastic waste. Small actions can 8 great changes. Protecting the Earth is not hard. It 9 everyone’s effort. Let’s work together to make our blue planet much 10 . ( ) 1. A. give B. gives C. giving D. gave ( ) 2. A. danger B. dangerous C. safe D. safety ( ) 3. A. serious B. more serious C. most serious D. seriously ( ) 4. A. lose B. loses C. lost D. losing ( ) 5. A. clean B. fresh C. dirty D. clear ( ) 6. A. protect B. pollute C. waste D. produce ( ) 7. A. plant B. planting C. to plant D. plants ( ) 8. A. bring B. brings C. take D. takes ( ) 9. A. need B. needs C. needing D. needed ( )10. A. beautiful B. more beautiful C. most beautiful D. beautifully 七、句型转换（每题2分，共20分） 1.There is some clean water in the lake.（改为否定句） There ________ ________ clean water in the lake. 2.We should protect our blue planet.（对划线部分提问） ________ ________ we ________? 3.Too much plastic is harmful to sea life.（同义句转换） Too much plastic ________ ________ for sea life. 4.They are cleaning the river now.（改为一般疑问句） ________ they ________ the river now? 5.We need to save water every day.（对划线部分提问） ________ ________ we need to ________ every day? 6.Rubbish makes the ocean dirty.（改为一般过去时） Rubbish ________ the ocean dirty. 7.It’s important for us to protect the Earth.（对划线部分提问） ________ ________ for us to do? 8.There are many trees and flowers on the Earth.（否定句） There ________ ________ trees or flowers on the Earth. 9.Everyone must play a role in saving our planet.（改为一般疑问句） ________ everyone ________ a role in saving our planet? 10.Saving water is very important.（同义句转换） ________ very important ________ save water. 八、语法短文填空（每空2分，共10分） Our Earth ________ (be) our blue home. Now it ________ (face) many environmental problems. We should ________ (save) water and ________ (plant) more trees. Small actions ________ (make) our planet better. 九、连词成句（每题2分，共10分） 1.planet, our, protect, blue, we, should 2.water, stop, we, wasting, must 3.important, is, to, Earth, protect, the, it 4.pollution, reduce, we, everyday, can 5.makes, fresh, trees, air, the 学科网（北京）股份有限公司 $