Unit 4 The senses 语法(表语从句)导学案 -2026-2027学年沪教版高中英语选择性必修第一册

该高中英语导学案聚焦表语从句语法，围绕Unit4 "The senses"主题展开，系统讲解定义、句型结构及that、whether等六类连接词用法，通过感官现象实例导入，衔接名词性从句知识，搭建从基础到高考重难点的学习支架。 资料以分类精讲结合高考易错点总结为特色，配套填空、改写等多样化情境化练习，助力学生提升语言能力（准确运用表语从句），培养思维品质（辨析连接词功能），强化学习能力（自主巩固语法规则），有效实现语法知识与单元主题的融合迁移。

Unit 4 The senses 语法讲解与练习 语法:表语从句详细讲解与练习 一、单元语法总述 表语从句属于高考重点名词性从句,多用于解释感官现象、说明问题原因、陈述事实观点。 二、表语从句核心基础 1. 定义 置于系动词之后,在主句中充当表语的完整句子,用来解释、说明主句主语的具体内容、原因、方式、情况。 2. 基本句型结构 主语+系动词+连接词+表语从句(陈述语序) 可接表语从句的高频系动词: be (am/is/are/was/were); 感官系动词(feel/sound/taste/smell/look); seem,appear,remain,prove,become 3. 核心铁律 所有表语从句必须使用陈述语序,绝对禁止疑问语序。 三、表语从句分类精讲 知识点1:that 引导表语从句(最常考) 用法:从句句意完整、不缺主干成分,that 无词义、绝对不可省略。多用于陈述客观事实、研究结论、感官规律。 例句1:The truth is that people’s senses differ from person to person. 例句2:My belief is that training can improve our sensory sensitivity. 知识点2:whether 引导表语从句 用法:表“是否”,从句语意不完整,表不确定;表语从句中只能用whether,绝对不用if。 例句1:The question is whether our senses can adapt to strange environments quickly. 例句2:Our doubt is whether the strange scent comes from wild plants. 知识点3:wh-类连接词引导表语从句(what/who/which/where/how/why/when) 用法:连接词在从句中充当主语/宾语/状语,有具体词义,不可省略,根据从句缺失成分选词。 例句1:The problem is how we distinguish similar tastes and scents. 例句2:The mystery is what caused the strange sensory illusion. 知识点4:because 引导表语从句 用法:用于解释原因,主语多为 it/that/this,译为“这就是……的原因”。 例句1:That is because cold weather weakens our sense of taste. 例句2:This is because different creatures have different sensory systems. 知识点5:why 引导表语从句 用法:用于说明结果,主语常为 the reason,译为“……的原因是……”。 例句1:The reason why we feel dizzy is that our senses are confused.(固定搭配) 易错修正:The reasonis that 为高考固定万能句型,表语从句必须用 that,严禁使用 why/because。 正确例句:The reason for his panic is that he failed to sense the danger in time. 知识点6:as if/as though 引导表语从句 用法:表“好像、似乎”,可接真实情况或虚拟情况,适配感官体验语境。 例句1:It looks as if the strange sound is coming from the woods. 例句2:It feels as though the temperature has dropped suddenly. 四、高考重难点&易错点大总结 1. that 不可省:表语从句的 that 无论是否作成分,一律不能省略(区别于宾语从句)。 2. if 禁区:表语从句表“是否”,只用 whether,禁止用 if。 3. reason 固定句型:The reason whyis that(绝对不用 because)。 4. because VS why 核心逻辑(必考): that is because + 原因(解释前文事件发生的缘由) that is why + 结果(引出前文事件造成的后续结果) 5. 语序必正:所有表语从句统一陈述语序,无倒装、无疑问语序。 【配套专项练习】 大题一:单词/连接词正确填空 重点考查:表语从句引导词辨析、主谓一致、句式规则 1. The truth is our senses can be easily affected by the environment. 2. The question is we can rely on our senses to judge dangers. 3. That is many hikers panic when they hear strange noises. 4. The problem remains we can distinguish similar scents accurately. 5. This is different people have different food preferences. 6. It looks the thunderstorm will arrive in a short time. 7. My doubt is the strange incident is related to sensory impairment. 8. The fact is spicy food can stimulate our sense of taste. 9. The key is we can protect our senses from damage. 10. That is I always stay calm when facing unexpected incidents. 11. The reason why he lost his appetite is he was tired and stressed. 12. It seems wild creatures have sharper senses than humans. 13. The trouble is many people ignore sensory health. 14. My idea is we should learn more about sensory principles. 15. That is radiation may cause sensory problems. 16. The uncertainty is the barrier will influence our judgment. 17. It feels the temperature in the tent has changed greatly. 18. The main reason is improper habits damage our senses. 19. The puzzle is some people are more sensitive to bitter tastes. 20. The suggestion is we take regular exercise to improve senses. 21. That is hikers should follow safety principles in the wild. 22. The question is we can finish the sensory investigation on time. 23. It appears the strange sound comes from the nearby forest. 24. The truth remains sensory training can change our perception. 25. The problem is we lack professional facilities to do the research. 大题二:句子改写 保持句意不变,将简单句/复合句改写为含表语从句的复合句 1. People’s senses are different. This is a fact. The fact is people’s senses are different. 2. Will the weather affect our senses? This is our question. Our question is the weather will affect our senses. 3. He panicked because he heard a strange noise. That is he panicked. 4. We need to protect our senses. This is the key. The key is we need to protect our senses. 5. They haven’t found the cause of the incident. This is the trouble. The trouble is they haven’t found the cause of the incident. 6. Different tastes influence our appetite. This is the truth. The truth is different tastes influence our appetite. 7. How can we improve our sensory ability? This is the problem. The problem is we can improve our sensory ability. 8. He lost his way because his sense of direction failed. That is he lost his way. 9. Can we avoid sensory damage? This remains uncertain. The uncertainty remains we can avoid sensory damage. 10. Why do creatures have sharp senses? This is a mystery. The mystery is creatures have sharp senses. 大题三:汉译英句子翻译 1. 事实是人类的感官很容易受到外界环境的影响。 2. 问题是我们是否能够准确分辨不同的气味和味道。 3. 这就是为什么野外徒步时我们要时刻保持警惕。 4. 他焦虑的原因是他的感官出现了短暂的失灵。 5. 关键是我们要学会保护自己的感官健康。 6. 看起来这场雷雨会影响我们的野外调查活动。 7. 困扰我们的是很多人忽视感官保护的重要性。 8. 这就是恶劣天气会让人产生不适感的原因。 9. 不确定的是我们能否按时完成感官实验。 10. 真相是长期疲劳会降低我们的感官灵敏度。 大题四:语法填空短文 Our senses are the most important tools for us to feel the world. However, many people do not realize 1 influences our sensory ability. The truth is 2 our senses are not always reliable. The biggest problem is 3 we often ignore small changes of our bodies. That is 4 tiredness and stress will reduce our sensitivity to tastes and scents. The question remains 5 we can effectively protect our senses in daily life. It looks 6 wild creatures have much sharper senses than humans. The reason is 7 they rely on their senses to survive in the wild. The mystery is 8 human senses can be improved through professional training. In conclusion, the key to protecting our senses is 9 we form healthy living habits. This is exactly 10 we should pay attention to in our daily life. Keys 大题一 答案+解析 1. that(从句结构完整、语义完整,that引导事实类表语从句,无词义、不可省略) 2. whether(表“是否”,含不确定含义,表语从句专属用whether,禁用if) 3. why(that is why+结果,解释事件产生的后续情况) 4. whether(句意表不确定性,修饰现存问题) 5. because(that is because+原因,阐释现象背后的缘由) 6. as if/as though(固定搭配,表“似乎、好像”,贴合感官语境) 7. whether(表存疑、不确定,适配语境) 8. that(陈述客观事实,从句成分完整) 9. how(从句缺失方式状语,表“如何、怎样”) 10. why(that is why+结果,说明行为原因) 11. that(The reason whyis that高考固定句型,固定用that) 12. as if/as though(固定句型,表“看起来似乎”) 13. that(陈述客观问题,从句语义完整) 14. that(陈述观点、想法,从句无成分缺失) 15. because(that is because+原因,解释现象成因) 16. whether(表不确定性,贴合语境) 17. as if/as though(描述感官体验,表“似乎”) 18. that(陈述核心原因,从句结构完整) 19. why(解释谜团、未知现象的成因) 20. that(陈述具体建议,从句语义完整) 21. why(阐释行为背后的原因) 22. whether(表“是否”,含不确定性) 23. as if/as though(固定搭配,表“看似、好像”) 24. that(陈述客观事实,适配主句真相表述) 25. that(陈述现存客观问题,从句成分完整) 大题二 1. that 2. whether 3. why 4. that 5. that 6. that 7. how 8. why 9. whether 10. why 大题三 参考译文 1. The fact is that human senses are easily affected by the external environment. 2. The question is whether we can distinguish different scents and tastes accurately. 3. That is why we must stay alert while hiking in the wild. 4. The reason why he felt anxious is that his senses failed temporarily. 5. The key is that we should learn to protect our sensory health. 6. It looks as if the thunderstorm will affect our field investigation. 7. What troubles us is that many people ignore the importance of sensory protection. 8. That is why bad weather can make people feel uncomfortable. 9. The uncertainty is whether we can finish the sensory experiment on time. 10. The truth is that long-term tiredness will reduce our sensory sensitivity. 大题四 语法填空答案+解析 1. what(宾语从句,作realize宾语,缺主语) 2. that(表语从句,句意完整,陈述事实) 3. that(表语从句,陈述现存问题) 4. because(解释原因,that is because句型) 5. whether(表语从句,表是否,存在不确定性) 6. as if(固定句型,看起来似乎) 7. that(the reason is that固定必考句型) 8. whether(表语从句,未知、不确定) 9. that(表语从句,陈述核心关键) 10. what(表语从句中作pay attention to的宾语) 2 / 2 学科网(北京)股份有限公司 $