Unit4语法(反义疑问句)导学案 2026-2027学年教科版五四学制英语九年级上册

Unit4 Wonderful world语法讲解与练习 语法: 反义疑问句 （一）反义疑问句基本概念与口诀 定义：反义疑问句又叫附加疑问句，由陈述句+简短疑问尾句两部分组成，用于向对方证实情况、征求意见，翻译为“……，是吗？/对吗？”。 核心黄金口诀：前肯后否，前否后肯 基本结构： 肯定陈述句+否定疑问尾句 否定陈述句+肯定疑问尾句 两大基本原则： ① 主谓一致（尾句主语、动词与主句保持一致）；② 时态一致（尾句时态匹配主句时态） （二）基础用法精讲 1. 前肯后否（主句肯定，尾句否定） 主句为肯定句，疑问尾句用否定形式，需缩写not 例句1：The scenery is beautiful, isn’t it?（景色很美，不是吗？） 例句2：He protects the natural environment,doesn’t he?（他保护自然环境，不是吗？） 2. 前否后肯（主句否定，尾句肯定） 主句含否定词（not/never/little/few等），视为否定句，尾句用肯定形式 例句1：The river is not polluted, is it?（这条河流没有被污染，对吗？） 例句2：He never wastes natural resources, does he?（他从不浪费自然资源，对吗？） （三）不同时态反义疑问句用法（单元核心考点） 1. 一般现在时 be动词句型：You are interested in nature, aren’t you?（你对自然感兴趣，不是吗？） 实义动词句型：Plants grow well here, don’t they?（这里的植物长势很好，不是吗？） 2. 一般过去时 be动词句型：The village was peaceful, wasn’t it?（这个村庄曾经很宁静，不是吗？） 实义动词句型：They planted trees last year, didn’t they?（他们去年种了树，不是吗？） 3. 一般将来时 will句型：We will protect the terraces, won’t we?（我们会保护梯田，不是吗？） be going to句型：It is going to rain, isn’t it?（快要下雨了，不是吗？） 4. 被动语态句型（结合本单元重点） 例句1：The water is monitored every day, isn’t it?（水位每天都被监测，不是吗？） 例句2：The dam was built years ago, wasn’t it?（这座水坝是多年前修建的，不是吗？） （四）高频特殊考点与易错点 1. 隐性否定词（主句含这些词，一律按否定句算） 否定词：never, hardly, seldom, little, few, no, none, nobody 例句1：He seldom litters, does he?（他很少乱扔垃圾，对吗？） 例句2：There islittle water in the channel, is there?（水渠里几乎没有水了，对吗？） 2. 祈使句的反义疑问句 普通祈使句（Let us...）：Open the window, will you?（打开窗户，好吗？） Let’s 开头句型：Let’s protect nature, shall we?（让我们保护自然，好吗？） 3. there be 句型的反义疑问句 尾句统一用 there be 对应形式，主语不替换 例句1：There are many wild plants here, aren’t there?（这里有很多野生植物，不是吗？） 例句2：There isn’t any pollution here, is there?（这里没有任何污染，对吗？） 4. 不定代词主语用法 everything/anything/nothing 作主语，尾句主语用it：Everything is ready, isn’t it? everyone/everybody 作主语，尾句主语用they：Everyone loves nature, don’t they? 5. 易错禁忌 否定尾句必须缩写：必须用isn’t/don’t/won’t，不可用 is not / do not 前后时态、人称必须严格统一，不可混搭 only/just/maybe 不算否定词，主句仍为肯定句 【配套练习】 大题一：单项选择 ( )1. The natural scenery is amazing, ______? A. is it B. isn’t it C. does it ( )2. They protect the local environment every day, ______? A. don’t they B. do they C. aren’t they ( )3. He never wastes natural resources, ______? A. does he B. doesn’t he C. is he ( )4. The old dam was built hundreds of years ago, ______? A. was it B. wasn’t it C. did it ( )5. We will keep the village clean, ______? A. will we B. won’t we C. don’t we ( )6. There are many terraces in the mountain, ______? A. are there B. aren’t there C. isn’t there ( )7. She seldom visits the polluted area, ______? A. does she B. doesn’t she C. is she ( )8. The water level is monitored every morning, ______? A. is it B. isn’t it C. does it ( )9. They didn’t plant trees last winter, ______? A. did they B. didn’t they C. were they ( )10. Let’s enjoy the beautiful nature, ______? A. will you B. shall we C. won’t we ( )11. Nothing is impossible in protecting the earth, ______? A. is it B. isn’t it C. are they ( )12. The village is surrounded by mountains, ______? A. is it B. isn’t it C. does it ( )13. Few wild plants die in this area, ______? A. do they B. don’t they C. are they ( )14. People will protect these ancient stones, ______? A. will they B. won’t they C. don’t they ( )15. You are interested in natural wisdom, ______? A. are you B. aren’t you C. do you ( )16. There is little clean water left, ______? A. is there B. isn’t there C. are there ( )17. They reshaped the river course last year, ______? A. do they B. did they C. didn’t they ( )18. Let us clean the river bank, ______? A. shall we B. will you C. won’t you ( )19. Everyone admires the wonderful scenery, ______? A. do they B. don’t they C. does he ( )20. The environment will become better, ______? A. will it B. won’t it C. doesn’t it 大题二：用单词的正确形式填空 1. The nature park is beautiful, ________? (not, be) 2. They take good care of wild animals, ________? (not, do) 3. He has never seen such great scenery, ________? (have) 4. The houses were flooded last night, ________? (not, be) 5. We will learn to protect nature, ________? (not, will) 6. There are few trees on the hill, ________? (be) 7. She seldom travels to remote areas, ________? (do) 8. The stones are carved carefully, ________? (not, be) 9. People didn’t waste water in the past, ________? (do) 10. Let’s explore the wonderful world, ________? (shall) 11. There is much green grass here, ________? (not, be) 12. The river provides clean water for farmland, ________? (not, do) 13. Nothing is difficult if we try, ________? (be) 14. They are going to protect the terrace, ________? (not, be) 15. You hardly know this natural rule, ________? (do) 大题三：句子改写 1. The world is wonderful.（改为反义疑问句） The world is wonderful, ________ ________? 2. They protect the natural environment.（改为反义疑问句） They protect the natural environment, ________ ________? 3. He never pollutes the river.（改为反义疑问句） He never pollutes the river, ________ ________? 4. The new water system was built last year.（改为反义疑问句） The new water system was built last year, ________ ________? 5. We will save natural resources.（改为反义疑问句） We will save natural resources, ________ ________? 6. There are many kinds of wild plants here.（改为反义疑问句） There are many kinds of wild plants here, ________ ________? 7. She seldom damages the environment.（改为反义疑问句） She seldom damages the environment, ________ ________? 8. Let’s enjoy the beauty of nature.（改为反义疑问句） Let’s enjoy the beauty of nature, ________ ________? 9. Few animals live in the dry area.（改为反义疑问句） Few animals live in the dry area, ________ ________? 10. Everything is well protected here.（改为反义疑问句） Everything is well protected here, ________ ________? 大题四：汉译英句子翻译 1. 这里的自然景色很美，不是吗？ ____________________________________________ 2. 他们每天保护这片梯田，不是吗？ ____________________________________________ 3. 他从不浪费水资源，对吗？ ____________________________________________ 4. 这座古老的水坝被保存得很好，不是吗？ ____________________________________________ 5. 我们将来会守护好这片自然天地，不是吗？ ____________________________________________ 6. 这里几乎没有污染，对吗？ ____________________________________________ 7. 很少有野生动物在这里消失，对吗？ ____________________________________________ 8. 让我们一起探索这个奇妙的世界，好吗？ ____________________________________________ 9. 所有的自然资源都很珍贵，不是吗？ ____________________________________________ 10. 河道明年将会被改善，不是吗？ ____________________________________________ Keys 大题一：单项选择 1.B 2.A 3.A 4.B 5.B 6.B 7.A 8.B 9.A 10.B 11.A 12.B 13.A 14.B 15.B 16.A 17.C 18.B 19.B 20.B 大题二：单词适当形式填空 1. isn’t it 2. don’t they 3. has he 4. weren’t they 5. won’t we 6. are there 7. does she 8. aren’t they 9. did they 10. shall we 11. isn’t there 12. doesn’t it 13. is it 14. aren’t they 15. do you 大题三：句子改写 1. isn’t it 2. don’t they 3. does he 4. wasn’t it 5. won’t we 6. aren’t there 7. does she 8. shall we 9. do they 10. isn’t it 大题四：汉译英 1. The natural scenery here is very beautiful, isn’t it? 2. They protect these terraces every day, don’t they? 3. He never wastes water resources, does he? 4. This ancient dam is well preserved, isn’t it? 5. We will guard this natural world well in the future, won’t we? 6. There is little pollution here, is there? 7. Few wild animals disappear here, do they? 8. Let’s explore this wonderful world together, shall we? 9. All natural resources are very precious, aren’t they? 10. The river course will be improved next year, won’t it? 2 / 2 学科网（北京）股份有限公司 $