Unit 1 介绍植物相关知识及价值 -2025-2026学年高中英语写作全流程精讲选择性必修第二册（重庆大学版）

高中选择性必修第二册重庆大学版 【A版写作全流程】U1:介绍植物相关知识及价值 写作专版 【A版写作全流程】介绍植物相关知识及价 值 写作全流程精讲·重庆大学版高中英语选择性必修第二册 话题解读 本话题是重庆大学版高中英语选择性必修第二册U1的重点写作内容。常考题目有“Introduce a Kind of Plant and Its Value'”“The Importance of Protecting Endangered Plants”等，核心考察学生对植物知 识的掌握与价值阐述的语言表达能力。该话题在高中英语写作中多以说明文形式出现，是选择性必 修阶段期中、期末的常见话题。 核心词汇和短语 一、核心难点词汇（12个) photosynthesis /fautau 'sIeasIs/ 含义：n.光合作用 搭配： chlorophyll /'kprafil/ 含义：n.叶绿素 搭配： oxygen /pksidsan/ 含义：n.氧气 搭配： carbon dioxide ka:ban dar'pksard 含义：n.二氧化碳 搭配： 高中选择性必修第二册重庆大学版 【A版写作全流程】U1:介绍植物相关知识及价值 ecosystem /'i:kausistam 含义：n.生态系统 搭配： biodiversity baraudar vs:sati/ 含义：n.生物多样性 搭配： nutrition Mju trIfn 含义：n.营养 搭配： medicinal /ma'disml/ 含义：adj.药用的 搭配： sustain /sa'stemn/ 含义：V维持 搭配： absorb /ab'so:b/ 含义：V吸收 搭配： release hli:s/ 含义：V.释放 搭配： renewable /rI nju:abl/ 含义：adj.可再生的 搭配： 二、 常用短语(12个) play a role in 升 含义：在…中起作用 搭配： 2 高中选择性必修第二册重庆大学版 【A版写作全流程】U1:介绍植物相关知识及价值 be essential for 含义：对…至关重要 搭配： convert..into.∥ 含义：把…转化为… 搭配： provide..with..∥ 含义：为…提供… 搭配： take in carbon dioxide 含义：吸收二氧化碳 搭配： release oxygen∥ 含义：释放氧气 搭配： in the form of 含义：以…的形式 搭配： be rich in∥ 含义：富含 搭配： depend on∥ 含义：依靠 搭配： contribute to 之 含义：有助于 搭配： 3 高中选择性必修第二册重庆大学版 【A版写作全流程】U1:介绍植物相关知识及价值 protect the environment 含义：保护环境 搭配： natur al resources 含义：自然资源 搭配： 高级句型 It is essential for plants to carry out photosynthesis using chlorophyll. 中文意思：对植物来说做某事是…的 模板亮点：Itis+adj.+for plants+to do sth.结构 2 Plants not only absorb carbon dioxide but also release oxygen into the air. 中文意思：不仅…而且… 模板亮点：Not only.but also.结构 3 The reason why plants are important is that they sustain the ecosystem and biodiversity. 中文意思：…的原因是… 模板亮点：The reason why...is that..结构 4 Compared with other natural resources,plants are renewable and can be protected easily. 中文意思：与…相比，… 模板亮点：Compared with..结构 5. What plays a role in converting sunlight into energy is the process of photosynthesis. 中文意思：在…中起作用的是… 模板亮点：What plays a role in.is.结构 6. Although some plants look small,they contribute to protecting the environment greatly. 中文意思：尽管…，… 4 高中选择性必修第二册重庆大学版 【A版写作全流程】U1:介绍植物相关知识及价值 模板亮点：Although.结构 7 Many medicinal plants provide humans with materials to make useful drugs. 中文意思：植物为…提供… 模板亮点：Plants provide..with.结构 The Importance of Plants Plants are amazing living things that play a vital role in our world.What plays a role in their survival is a special process called photosynthesis.It is essential for plants to carry out photosynthesis using chlorophyll,which helps them convert sunlight into energy. Not only do plants absorb carbon dioxide,but they also release oxygen into the air,making the air clean for us to breathe.The reason why plants are important is that they sustain the ecosystem and biodiversity.They provide food for animals and humans,often in the form of fruits,vegetables,and grains,which are rich in nutrition. Many medicinal plants provide humans with materials to make useful drugs,helping us fight diseases. Compared with other natural resources,plants are renewable,so protecting them is crucial for our future. Although some plants look small,they contribute to protecting the environment greatly by preventing soil erosion and maintaining the balance of nature. In conclusion,plants are essential for all living things.We should value and protect them to ensure a healthy and sustainable planet. 5